Published Clarivate Analytics and SCOPUS Indexed Journals (2017-2020)
| Author | Title of Article | Name of Journal/Book | ABSTRACT |
|---|---|---|---|
| Consorcio S. Namoco Jr.*** Venerando C. Comaling Cerilo C. Buna Jr. | Utilization of Used Cooking Oil as an Alternative Cooking Fuel Resource | SCOPUS Indexed Vol. 12, No. 2 pp. 435-442 January 2017 ARPN Journal of Engineering and Applied Sciences ISSN: 1819-6608 | In this study, used cooking oil was utilized as an alternative cooking fuel resource. A survey was conducted to selected major food chains and restaurant in Cagayan de Oro City, Philippines. Survey results revealed that generation of used cooking oil in these selected establishments on a weekly basis is considerably huge in volume. Modifications have been made to a commercially available pressurized kerosene stove taking into consideration the characteristics of the used cooking oil. The cooking performance of the modified stove using used cooking oil as fuel was then investigated. |
| Consorcio S. Namoco Jr.*** Juvy T. Cloma Gerby Rabago Rejinald Surbano Cerilo C. Buna Jr. | Development of a Mechanical Dry Corn Picker Utilizing a Bucket Conveyor | SCOPUS Indexed Vol.12, No. 2 pp. 409-413 January 2017 ARPN Journal of Engineering and Applied Sciences ISSN: 1819-6608 | In this study, a manually-operated mechanical dry corn picker utilizing bucket conveyor was designed and developed using locally available materials. This post-harvest device is aimed to help farmers in reducing labor, time and cost in collecting dry corn during solar drying, hence, improving the production efficiency. Evaluation of the acceptability of the device in terms of functionality, safety, structure and efficiency was shown to be acceptable as assessed by randomly selected respondents. |
| Ruel R. Cabahug** Israel A. Baguhin | An Experimental Investigation of Mahogany Carpel Ash as Cement Replacement in Concrete | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | This study investigates mahogany carpel ash as cement replacement at five different design mixtures: 20%, 40%, 60%, 80% and 100% mahogany carpel ash composition. Specimens without mahogany carpel ash were also prepared to serve as the control specimens for this study. The mortar specimens were tested for compressive strengths at curing age of 3 days, 7 days and 28 days. The characteristics of the ash were also determined to understand the physical and chemical contents of the ash. Results revealed that the use of 20% mahogany carpel ash cement replacement was able to meet the American Society for Testing and Materials (ASTM) C270 minimum strength requirement for Type M mortar. The 40% and 60% cement replacement met the minimum standards for Type N mortar and the 80% cement replacement met the minimum standards for Type O mortar. These findings provided information that may be useful to further conduct specific studies to enhance the utilization of mahogany carpel for concrete technology and the construction industry. |
| Ruel R. Cabahug, Jovyline L. Ape, April Mae G. Curiba, Vanessa Jane D. Egama, Mea C. Mabano and Ritchelle Marie A. Uy | Coal Fly Ash as Cement Replacement on Mortar Mixed with Mangima Stone and Conventional Fine Aggregates | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | A study was conducted to investigate the characteristics of fly ash as cement replacement on mortar mixed with Mangima stone and conventional fine aggregates. Since many studies have established that coal fly ash and Mangima stone can be a good substitute for concrete aggregates, the researchers decided to create a new experiment to show the combination of the two materials on a mortar mixture. Several design mixtures were evaluated to compare the test findings. The quality tests of the Mangima stone with conventional fine aggregates and cement with different proportions of fly ash included the following: specific gravity (SSD) and absorption test and sieve analysis (gradation test). It also presents the results of the investigation carried out to evaluate the compressive strength of 1:3 mortar mixes in which conventional fine aggregates was replaced with 50% Mangima stone fine sand by weight which was further modified by partially replacing cement with six percentage ratios i.e.0%, 20%, 40%, 60%, 80% and 100% of coal fly ash. The compressive strength was determined by three (3) trials at 7, 14 and 28 days of age. Test results revealed that the combined use of Mangima stone and conventional fine aggregates exhibited that fly ash can only be utilized as cement replacement on mortar by 20% which attained the type S mortar. |
| Diogenes Armando D. Pascua*** Maricel Cizel U. Deroy, Aeus Joshua Espaldon, Johanna Ericka F. Osa, Gian Paulo B. Macalla | Design and Implementation of an Automated Fish Feeder Robot for the Philippine Aquaculture Industry: Feeding Mechanism and Float Design Module | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | The researchers developed an automated fish feeder robot’s feeding mechanism and floater mechanical assembly to be used in aquaculture farming that aims to aid in the distribution of feeds. Data such as the conveyor's feeding capacity per unit time, the density of pellets dispensed in the cage and per quadrant were calculated and critical load check and stability tests were completed. Visual tests for the prototype were also conducted. The Aslong 12v JGB37-550 direct current (DC) motor was used to drive the bucket conveyor which is responsible for the transport of pellets to be dispensed to the outlet. On the other hand, the 3-blade commercial remote-controlled (RC) boat propeller driven by the Graupner 12V brushed motor was used to propel the floater while navigating and dispensing feeds throughout the fish cage. After assembling and building the whole prototype and combining the feeding system and the floater design, the researchers have tested its effectiveness, stability, and operation. With those parameters tested and calculated, it is concluded that the design of the feeding mechanism and floater is operational and suitable for automation of fish feeding in fish cages. |
| Liezl M. Jabile** Ephraim E. Ibarra | Development of Porous Ceramic Diffuser from Red Clay and Diotomite-rice Hull Ash Mixtures via Slip Casting Method | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | A red clay-based porous ceramic for water aeration diffuser application was produced from different compositions of Lama-Lama clay, Kapatagan diatomite, and rice hull ash. The formulations were based on the clay to silica ratio of 40/60, 45/55, 50/50, and 55/45. Low-cost additives like cornstarch and cassava starch were also added as pore formers at 15 weight percentage. Cylindrical and rectangular test pieces were made by slip casting that was fired at 1050oC and 1150oC. The solid casting of slip was done by heating in a microwave oven at 60oC and 80oC, respectively. Various tests were conducted on the fired specimens such as firing shrinkage, water absorption, apparent porosity, bulk density, specific gravity, modulus of rupture, and scanning electron microscopy. The best formulation appropriate for air diffuser was the sample with the composition of 55/45 clay to silica ratio without starch and was fired at 1050oC. |
| Leonel L. Pabilona*** Edward Peter F. Rollo, Antonio-Abdu Sami M. Magomnang, Eliseo P. Villanueva and Dianne Mae M. Magomnang | Analysis of Biogas Production from Cow, Chicken and Swine Manure | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | Biogas is a valuable renewable energy carrier. It can be exploited directly as a fuel for internal combustion engines. Methane (CH4) and carbon dioxide (CO2) are the main constituents, but biogas also contains significant quantities of undesirable contaminants such as hydrogen sulfide (H2S). The existence and quantities of these contaminants depend on the biogas source. Their presence constitutes a major problem because of corrosion, erosion, fouling, and can generate harmful environmental emissions. The main objective of the present experimental investigation was to evaluate the biogas produced from different animal manure (chicken, cow, and swine) at same technical settings on the anaerobic digestion process. As a possible means to improve the biogas production, as well as reduce their pollution potential, the idea of using the iron sponge (steel wool) for the removal of hydrogen sulfide and water scrubbing for the removal of carbon dioxide, while operating the reactor at maximum retention period has been applied. Purification of the biogas produced was done using H2S adsorption and CO2 absorption; thus, improving its use as fuel for power generation. The results showed that among the (3) three manure studied, swine manure produces the highest total production of biogas with the rate at 1.30561 ft3. In the hydrogen sulfide removal, chicken manure yielded the highest impurities that range from 102-132 ppm. After purification, the concentration became 1 ppm. Thus, the hydrogen sulfide purification is effective. The carbon dioxide concentration in this study found out that the chicken manure produces more CO2 at 9.99% volume. After the purification process, the reading ranges from 0.14 % to 0.08 % volume. In this study, chicken manure contained more impurities than swine and cow manure. |
| Ruel R. Cabahug, Jovyline L. Ape, April Mae G. Curiba, Vanessa Jane D. Egama, Mea C. Mabano and Ritchelle Marie A. Uy | Coal Fly Ash as Cement Replacement on Mortar Mixed with Mangima Stone and Conventional Fine Aggregates | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | A study was conducted to investigate the characteristics of fly ash as cement replacement on mortar mixed with Mangima stone and conventional fine aggregates. Since many studies have established that coal fly ash and Mangima stone can be a good substitute for concrete aggregates, the researchers decided to create a new experiment to show the combination of the two materials on a mortar mixture. Several design mixtures were evaluated to compare the test findings. The quality tests of the Mangima stone with conventional fine aggregates and cement with different proportions of fly ash included the following: specific gravity (SSD) and absorption test and sieve analysis (gradation test). It also presents the results of the investigation carried out to evaluate the compressive strength of 1:3 mortar mixes in which conventional fine aggregates was replaced with 50% Mangima stone fine sand by weight which was further modified by partially replacing cement with six percentage ratios i.e.0%, 20%, 40%, 60%, 80% and 100% of coal fly ash. The compressive strength was determined by three (3) trials at 7, 14 and 28 days of age. Test results revealed that the combined use of Mangima stone and conventional fine aggregates exhibited that fly ash can only be utilized as cement replacement on mortar by 20% which attained the type S mortar. |
| Alex L. Maureal** Roland Joshua S. Pecson, Grace E. Echavez, Mark Jvann C. Inson | Management Information System for Smart Agriculture (MISSA) Soil Sensing in Initao, Misamis Oriental | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | The present practice in the Department of Agriculture 10 (DA 10) involved a conventional process of data collection in the farms, relying mainly on the farmer’s perception which causes inconsistency. Given the seen gap, this study on the Management Information System for Smart Agriculture (MISSA) Soil Sensing System was conducted. It is an approach to modernize the determination of the nitrogen, phosphorous, and potassium (NPK) quality and pH level of soil samples qualitatively. The main objective of the study was to develop an integrated sensor prototype determining the NPK and pH which has a local database generating a geographical coordinate transmitted to a develop MISSA Portal. Soil samples were collected from selected farms in Tubigan, Initao, Misamis Oriental and analyzed qualitatively using the developed MISSA soil sensing prototype. Obtained results were comparable to the DA standard for soil tests. |
| Diogenes Armando D. Pascua*** Maricel Cizel U. Deroy, Aeus Joshua Espaldon, Johanna Ericka F. Osa, Gian Paulo B. Macalla | Design and Implementation of an Automated Fish Feeder Robot for the Philippine Aquaculture Industry: Feeding Mechanism and Float Design Module | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | The researchers developed an automated fish feeder robot’s feeding mechanism and floater mechanical assembly to be used in aquaculture farming that aims to aid in the distribution of feeds. Data such as the conveyor's feeding capacity per unit time, the density of pellets dispensed in the cage and per quadrant were calculated and critical load check and stability tests were completed. Visual tests for the prototype were also conducted. The Aslong 12v JGB37-550 direct current (DC) motor was used to drive the bucket conveyor which is responsible for the transport of pellets to be dispensed to the outlet. On the other hand, the 3-blade commercial remote-controlled (RC) boat propeller driven by the Graupner 12V brushed motor was used to propel the floater while navigating and dispensing feeds throughout the fish cage. After assembling and building the whole prototype and combining the feeding system and the floater design, the researchers have tested its effectiveness, stability, and operation. With those parameters tested and calculated, it is concluded that the design of the feeding mechanism and floater is operational and suitable for automation of fish feeding in fish cages. |
| Kenneth M. Senados** Arnold C. Alguno | Two-stage Process on the Growth of High-density Zinc Oxide Nanostructures via Chemical Bath Deposition on Glass Substrates | SCOPUS Indexed Vol. 15 January - December 2017 Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | Zinc oxide nanostructures were deposited on glass substrates using ZnSO 4 with varying NH 4 OH concentration via one-stage and two-stage chemical bath deposition (CBD) method. The two-stage process was prepared by pre-treatment of the glass substrates with ZnO colloid powder which were obtained from a previous bath deposition before the CBD takes place. SEM images revealed that the two-stage CBD technique yielded a high-density of the ZnO nanostructures as compared to the one-stage process. Moreover, the growth of ZnO nanostructures exhibits a hexagonal structure as revealed by the Scanning Electron Microscope (SEM) images. The growth of high-density ZnO nanostructures via two-stage CBD technique can be explained by the presence of the early nucleation of ZnO nuclei provided during the pre-treatment of the substrate with ZnO colloid powders. Furthermore, annealing the as-grown nanostructures at 200 o C resulted into the decomposition of Zn complexes forming high-quality ZnO nanostructures and coalescence of smaller ZnO nanostructures to formed bigger ones also occurred. Higher absorption spectra can also be observed from the nanostructures grown via the two-stage process which further confirms the growth of high-density ZnO nanostructures. The calculated energy band gap extracted from the UV-Vis spectra is in good agreement with the reported energy band gap of ZnO nanostructures. |
| Fernando Capilitan | Instructional DVD Video Lesson with Code Switching: Its Effect on the Performance Level in Dancing Social Dance Among Grade 10 Special Program in the Arts Students of the Philippines | Clarivate Analytics Vol. 5, No. 1 pp. 118-126 2017 Journal of Language and Cultural Education ISSN: 1339-4045 | This paper shows that the experimental group who are exposed to DVD Video Lesson that uses code switching language has an average mean score in the pretest of 1.56, and this increased to an average mean of 3.50 in the posttest. The control group that uses DVD Video Lesson that uses purely English language got an average mean of 1.06 in the pretest and increased to 1.53 in the posttest. Based on the results of the performance posttest taken by the two groups, the experimental group has a dramatic increase in scores from the pretest to posttest. Although both groups had increased in their performance scores from pretest to posttest, the experimental group (code switching language) performs well in the posttest than the control group. As revealed in this findings , there is a significant difference in the posttest scores between the experimental group who are exposed to DVD lesson that uses code switching as a medium of instruction and the control group who are exposed to DVD lesson that uses English. The students who are exposed to the Video Lesson that uses code switching perform well than those students who are exposed in DVD video lesson that uses purely English language. DVD Video lesson that uses code switching as a medium of instruction in teaching social dance is the useful approach in teaching Grade 10 Special Program in the Art students. The language used (code switching) is the powerful medium of instruction that enhances the learning outcomes of the students to perform well. This paper could be an eye opener to the Department of Education to inculcate the used of first language/local language or MTB- MLE, not only in Grade I to III but all level in K to 12 programs, since education is a key factor for building a better nation. |
| Dennis B. Roble | Development of School Management and Instructional Innovation Plan Based on School Heads Level of Leadership Traits and Work Effectiveness | Clarivate Analytics Vol. 6, Issue 1 pp. 2103-2111 2017 IJSR - International Journal of Science and Research ISSN: 2319-7064 | School leadership plays an indispensable role in the effectiveness of an educational institution, right from the setting to the accomplishment of the school mission, vision and goals. School administrators leadership attributes play a vital role towards students achievements and general school effectiveness. This study determines the degree of school administrators leadership traits (decisiveness, integrity, commitment, initiative, courtesy, human relations and stress tolerance) and work effectiveness (instructional leadership, learning environment, human resource and management, school community partnership and school management and operations) as perceived by the school administrators and teachers. Further, this study find out the predictors of school administrators leadership traits and work effectiveness as well the degree of relationship between these variables. Data were analyzed using frequency count, percentage, mean, and correlation and regression analysis. Result of the analysis showed that the in terms of school heads leadership traits and work effectiveness, the school heads look at themselves as highly effective while the teacher-respondents viewed them as only effective. Moreover, the school heads level of stress tolerance showed a strong impact on the school heads level of work effectiveness in the school operations and management while others showed moderate to weak relationship as perceived by the school heads, on the other hand, in terms of the teacher-respondents perspective, in all indicators of school heads work effectiveness and leadership traits, they showed strong association with each other. Both the school heads and teachers admitted that human relations and human resource and management were important components to achieve an efficient instructional and management leadership and thus promoting success in students learning. The researcher the recommends that the school heads leadership traits and work effectiveness should be constantly monitored by Department of Education officials to continually attain the goals and objectives of all secondary schools and establish a healthy balance between work and traits for a productive leadership of a school head and gain strong support from the teachers and other stakeholders. Both internal and external stakeholders may work together in providing quality education to students who can become educational leaders in the future. |
| Marjun S. Sequerra*** Sherwin A. Guirnaldo Isidro D. Permites Jr. | Naïve Bayes Classifier and Fuzzy Logic System for Computer-Aided Detection and Classification of Mammographic Abnormalities | SCOPUS Indexed Vol. 95, No. 2 January 2017 pp. 381 - 392 January 2017 Journal of Theoretical and Applied Information Technology ISSN: 1992-8645 | Breast cancer has been one of the major causes of death among women since the last ten years and it has become an emergency for the healthcare systems of industrialized nations. This disease became the most common cancer among women. Today, detecting breast cancer at its early stage is the primary factor that will increase the chances of survival and will provide more options for treatment. Because of this, the proponent develops a computer – aided detection and classification system for mammographic abnormalities. These abnormalities are limited only with microcalcification and masses. These abnormalities are classified as to benign or malignant.The system is divided into three modules: (1) detection of microcalcification, (2) classification of microcalcification and (3) classification of masses. The proponent used a Naïve Bayes Classifier in detecting microcalcification and Fuzzy Logic System for classification of the severity of abnormalities. The data used were obtained from the Mammographic Image Analysis Society (MIAS) database. |
| Junar A. Landicho*** Anghela Perperua A. Dela Cerna Jeric James G. Marapao Gerwin P. Balhin Rachelle M. Paid | Hortari: A Gamification Application for Engaged Teaching and Learning in Higher Education | Clarivate Analytics Vol. 13, No. 1 pp. 181-187 January 2017 Journal of E-Learning and Knowldege Society ISSN: 1826-6223 (print) | The primary purpose of this study is to create gamification application in both web and mobile to motivate and engage students in learning their lessons to a certain subject. The incorporation of gamification into classroom activities has shown positive results in terms of student’s performance and productivity. Incorporating lessons, creating syllabus, and integrating table of Specification are among the fundamental features of the application that made it distinctive to the other existing gamification application. Integrating Table of specification in the application helps the students to recognize main ideas, key skills, and the relationships among concepts more easily. Creating a detailed course syllabus showed connection between course goals and course requirements and have been found to be most effective in achieving positive student outcomes. The results of the test survey and evaluation form were analyzed and proved the effectiveness of usability and functionality of the application. |
| Oliva P. Canencia*** Jinky M. Arnejo | Functional Literacy of the Indigenous Peoples: Embracing the Alternative Learning System | Clarivate Analytics Vol. 4, No. 1 pp. 105-117 January 2017 Asian Academic Research Journal of Multidisciplinary ISSN: 2319-2801 (print) | |
| Oliva P. Canencia*** Sheryl S. Yañez | Ecological and demographic factors associated with dengue virus incidence in Cagayan de Oro city, Philippines: a geographic information system application | Clarivate Analytics Vol. 10, No. 2 pp. 190-201 February 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Dengue fever is the most widespread mosquito-borne viral disease globally. Transmission of dengue virus is essentially influenced by climatic factors and there is much concern as to whether climate change would spread the disease to areas currently unaffected. The main aim of this study was to analyze the incidence of dengue virus in Cagayan de Oro City and to determine the geographic and ecological factors associated with dengue disease. Dengue fever incidence of 42 barangays, monthly rainfall, annual temperature, precipitation, age and gender distribution of dengue fever cases were determined from 2014-2016. Areas in Cagayan de Oro with incidence of dengue were identified based on ecological and demographic factors. The data showed that rainfall, temperature, age, gender and the actual location of respondents affected by dengue have higher influence on dengue incidences. Population and house density has revealed that dengue generally occurred in areas with high population, thus contribute to high-risk area such as neighboring community and households. Further studies on the development projection map on the basis of geo-tagging of the actual location of respondents affecting dengue virus and the flying distance of mosquito are highly recommended to significantly continue monitoring and surveillance of the affected barangays. The incidence of dengue is continues to be emerging over the next few years, thus requires continuous monitoring and surveillance especially in barangays in Cagayan de Oro with high dengue incidence. |
| Christina V. Maglipong*** Jean L. Bongolto | Mathematical Patterns: Impact on Students' Performance in College Algebra | Clarivate Analytics Vol. 6, Issue 1 pp. 2112-2119 January 2017 IJSR - International Journal of Science and Research ISSN: 2319-7064 (online) | The purpose of this study was to determine the influence of mathematical patterns on the students performance in terms of conceptual understanding and achievement in college algebra and their perception towards the use of mathematical patterns. The study used the pretest-posttest quasi-experimental-control group design. Two sections were randomly chosen from the five sections that were officially enrolled in the first semester of school year 2014-2015. One group was randomly assigned as the control group and the second one as the experimental group. The control group had undergone the lecture-discussion while the experimental group underwent mathematical patterns. The study used three instruments Mathematics Achievement and Conceptual Understanding Tests and the Interview Guide Questions. The performance of both groups of the students in the pretest and posttest were described in terms of the mean and standard deviation. The analysis of covariance (ANCOVA) was used to determine the effect of two teaching methods. Based on the analysis of the study, the results revealed that there was a significant difference in the students achievements and conceptual understanding scores as influenced by the teaching method which is the use of mathematical patterns. Furthermore, he students in the experimental group expressed that mathematical patterns was enjoyable and interesting because it allowed them to develop their critical thinking and made mathematics learning easier for them. Based on the findings of the study, the researcher concluded that the use of mathematical patterns is an effective method of teaching in improving students achievement and conceptual understanding. The researcher recommends that mathematical patterns may be used by mathematics teachers in their classes to help improve achievement and develop conceptual understanding even to pre-school, elementary and secondary levels. |
| Van Ryan Krsitpher R. Galarpe* | Review on the Impacts of Waste Disposal Sites in the Philippines | Clarivate Analytics Vol. 29 (2) pp. 329-385 Section A March 2017 Science International Journal ISSN: 1013-5316 | The Republic Act (RA) 9003-Ecological Solid Waste Management (ESWM) Act of 2000 of the Philippines provides the mandate and framework for solid waste management in the country. The implementation however on the local government units reflects the lack of institutional arrangements for waste management. This has been reflected through the utilization of unregulated dumpsites and landfills exhaustively although other alternatives can be considered. Primary reasons were drawn from inadequate technical and financial resources, lack of political will, unwillingness of stakeholders, and minimal local awareness. Consequently, there is absence of comprehensive monitoring scheme of dumpsites and landfills operation in the country. Present studies reviewed in this paper evidenced the threat that disposal sites may pose to the environment from potential leaching of hazardous chemicals due to dumped wastes. The contamination of the adjacent water resources, soil, and plants is likely common. This review further highlights the opportunities presented to the adjacent community through employment: i) scavenging, ii) middle me/itinerant working, and iii) micro-financing. While these disposal sites may attract locals or informal settlers due to perceived opportunities, they are similarly exposed to health threats. Overall, this review also summarizes key points to propose a mechanism to improve the solid waste disposal system to meet the policies of RA 9003. |
| Ronnie L. Besagas*** Antonio Y. Asoy Romeo M. Del Rosario Noel T. Dael | Physico-Chemical Characteristics of Tailings from Gango Gold Mine | Clarivate Analytics Vol. 7, No. 2 pp. 201-207 February 2017 Journal of Chemical, Biological and Physical Sciences ISSN: 2249-1929 | The physico-chemical characteristics of the Gango gold mine tailings and the economic feasibility of reprocessing it was investigated. Characterization was made in two categories of tailings: the surface tailings and the 1m deep tailings. The results showed that both surface and 1m deep tailings are alkaline at pH 9.80 and 8.98, respectively. Ignition at 500˚C resulted in a minimal loss of weight for both surface and 1m deep tailings implying that the tailings contain only a traced amount of volatile substances. The sulfur content of the tailings is at the average of 2.03%. The presence of sulfur may trigger a harmful environmental condition called acid mine drainage. Substantial amount of Fe, Mn, Cr, Cu, Co, Pb, Ag, and Au were assayed in the Gango gold mine tailings. In terms of the economic aspect, the tailings contain substantial amount of gold (7.38 g Au/t) with significant economic value. It is estimated that the tailings pond at Gango Gold Mine contains more than 945 kg of gold. Reprocessing of Gango gold mine tailings to recover the precious gold metal is highly viable. |
| Ronnie L. Besagas*** Antonio Y. Asoy Romeo M. Del Rosario Noel T. Dael | Reprocessing of Gango Gold Mine Tailings via Different Leaching Methods | Clarivate Analytics Vol. 7, No. 2 pp. 201-207 May 2017 Journal of Chemical, Biological and Physical Sciences ISSN: 2249-1929 | The efficiency of four leaching methods, cyanide leaching, thiourea leaching, thiosulfate leaching, and iodine leaching, in leaching out gold in two categories of tailings, surface and 1 meter deep, from Gango Gold Mine was investigated. The tailings at Gango contain substantial amount of gold with 7.37 g/t and 7.38 g/t at the surface and at 1m deep, respectively. Empirical data revealed that thiosulfate is a good lixiviant rivaling cyanide in leaching gold from the tailings. The average gold extracted between the surface tailings and 1m deep tailings within just 5 h reaction time is 73.9 % for thiosulfate leaching and 73.4 % for cyanide leaching. Considering that cyanide is an environmental hazards due to its high toxicity, thiosulfate is viewed as a better lixiviant for the Gango Gold Mine tailings. Thiourea leaching and iodine leaching, on the other hand, resulted to poor leaching efficiency of 54.2% and 50.8%, respectively. |
| Van Ryan Krsitopher R. Galarpe* | Solid Waste Management (SWM) Strategies in Mindanao University of Science and Technology, Philippines | Clarivate Analytics Vol. 29 (2) pp. 63-67 Section A March 2017 Science International Journal ISSN: 1013-5316 | Improper solid waste (SW) disposal had become a pressing environmental concern. The solid waste management (SWM) in the Philippines is institutionalized by the mandate of the Republic Act 9003, however, the extent of implementation of the act was not assessed. To extrapolate an extent of SWM support in academic institutions in the Philippines, this study was conducted. Primarily, this paper assessed descriptively the SWM strategies of the Mindanao University of Science and Technology (MUST), Philippines. Overall, SWM strategies in MUST reinforced existing knowledge on SWM among faculty, students, and staff. An active participation was observed as evidenced by; (i) number and types of SW bins; (ii) curriculum and instructions; (iii) university canteens initiative; (iv) urban gardening; and (v) reusing of waste papers. Marginal gaps which include the absence of material recovery facility (MRF), lack of trained personnel, and SW holding areas before landfill refuse were also identified. Present findings can be a basis to further evaluate how academic entities in the Philippines practiced the mandate of R.A. 9003. |
| Van Ryan Krsitopher R. Galarpe*** Brawner Brian L. Heyasa | Solid Waste Management (SWM) Response of Selected Public Secondary School Science Teachers in Cagayan de Oro, Philippines | Clarivate Analytics Vol. 4, No. 7 pp. 110-115 July 2017 International Journal of Advanced and Applied Sciences ISSN: 2313-3724 | Solid waste management (SWM) in the Philippines had become one of the major environmental issues owing to lack of policy implementation despite existing government mandate. This paper tried to descriptively determine the practice of secondary public schools in Cagayan de Oro Philippines, vital sector to initialize information drive in students and community. This was conducted to identify the extent of the Department of Education (DepEd) and Republic Act 9003 mandate on SWM to public secondary schools. A survey questionnaire was administered to 45 science teachers and followed by ocular visit to surveyed schools. Overall, the survey showed positive level of awareness, attitude, and practices of teachers towards SWM. Practices however were selectively better in some schools through establishing recycling and composting options. Generally, the absence of a recommended material recovery facility (MRF) was common. Present findings served as basis to review existing policy framework in DepEd and the local government units (LGUs) to support SWM in educational sectors. |
| Archie O. Pachica*** Dhave S. Barsalote Jessy Mae P. Geraga Jhestine M. Ong Michael D. Sajulan | Motorcycle Theft Prevention and Recovery Security System | SCOPUS Indexed Vol. 12, No. 1 pp. 2680-2687 June 2017 International Journal of Applied Engineering Research ISSN: 0973-4562 | Transportation plays a big part of our daily lives. Every year, people in the Philippines are increasingly using vehicles especially motorcycles as their common means of transportation. Together with the increase of motorcycle users, motorcycle theft is also rampant over the years. In this study, a system had been developed for theft prevention and recovery of motorcycle in an easier and faster way. The user of this system will be notified through an alert once the motorcycle has been moved in a long distance or stolen. The user also could view the current location of the motorcycle, shutdown the engine and capture an image of the thief. The system has two components, the hardware and the software modules. The hardware component includes micro-controller, GSM, GPS, and a camera. The software component is the mobile application, which is the medium of communication of the user to the motorcycle and also serve as the main controller of the entire system. Based on the evaluation conducted in terms of usability and functionality it had been found out that most of the users strongly agreed the usefulness of the system. |
| Paul Joseph Estrera*** | Electronic Document Management System for Higher Education Institution | Clarivate Analytics Vol. 2, Issue 5 pp. 549-556 May 2017 International Journal of Innovative Science and Research Technology ISSn: 2456-2165 | The study looked into the current document management problems in Higher Education Institution based on the QMS of ISO 9001. It found several discrepancies in terms of tracking, keeping and transferring of the memoranda and files from one office to another. These files were elicited from several circumstances such as loss of documents and redundancy, to name a few. Because of these problems, an Electronic Document Management System (EDMS) was introduced. The study used two methods such as the Spiral Model and the In-house Development Program. The EDMS was completed and tested by the three colleges of Capitol University namely, Computer Studies, Business Administration, and Criminology. Moreover, the modules of EDMS were also evaluated by deans and secretaries of the same colleges. The evaluation phase found differences in terms of time spent for the documents that were covered and was further monetized to visualize cost-reduction measures as a tool for its implementation. As the result, EDMS is acceptable in terms of quality, time spent, and cost. It is recommended that the EDMS must be fully implemented in all colleges in the university. It is further recommended that there should be another study to upgrade the EDMS and to make it on-line for a centralized and efficient way of monitoring and tracking the documents. |
| Anna Fay A. Edulsa** John Benedict L. Bernardo Princess Mae Compo | An Ecömmerce Platform and Decision Support for Plants with Comprehensive Information | Clarivate Analytics Vol. 2, Issue 5 pp. 563-568 May 2017 International Journal of Innovative Science and Research Technology ISSn: 2456-2165 | - Electronic Commerce site consist of purchasing and selling products which is intended to benefit both gardeners and users. This platform aims to help the local gardeners in selling their plants through online and to provide a more convenient and more reliable way for users to find, view and buy the desired plants that are suitable for their necessity, the customers can also get description and details from the product online. The site also featured an auto suggest engine which the user might use in searching the plants if ever they don’t really have an idea on how and what to grow. Problems found that most gardeners had a hard time in selling their plants, in reaching their customer and the insufficient specification on plants and trees that the possible buyer might experience. The researchers conduct a usability test on five (5) end-users and five (5)) IT Professionals a total of ten(10) respondents to gather information on their experience. During the test, the researchers also provided a scenario wherein the respondents act as a buyer who needed to use the auto suggest feature and conduct the whole process of checking out the product. The result has shown that majority of the respondents have agreed that the Auto Suggest really do help them decide which plant to choose and their overall experience was pleasant and intuitive enough that this platform makes it a userfriendly. |
| Christine Marie J. Madrid* Raymond Ray S. Saldua | Paper and Fabric Cutting Solution Using Automated Cutting System | Clarivate Analytics Vol. 3, Issue 3 pp. 204-209 June 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | Robots have been utilized as a vital piece for different applications in the industry as well in the academe.In instance, for personal services, robots are being used in the variety of task. In this study, the researchers focusedon a new concept of an Arduino-based Microcontroller wheeled laser cutting robot. The researcher is motivated todevelop an alternative solution for manual cutting or engraving that could set out to give artists, illustrators,designers and everyone in between have an easy access to laser cutting so they could make their designs a reality.The developed prototype uses 2.5W Blue-Violet and an Arduino NANO that serves as the brain of the robot whichthe application involves firing a laser which cuts by melting, burning or vaporizing a material. The developed lasercutting robot have passed technical evaluation and testing for the overall functionality and with regards to theresults, it indicates that the laser cutting robot is in a good quality as an instructional tool. |
| Van Ryan Kristopher R. Galarpe*** Joseph L. Bansilay Ma. Judith B. Felisilda Mohammad-Nor B. Ibrahim Keir Joshua F. Maraviles Richiel Lou A. Villanueva | Physicochemical Analyses of Selected Tap Water Samples Adjacent University Community, Cagayan de Oro, Philippines | Clarivate Analytics Vol. 9, Issue 3 pp. 633-638 May 2017 Science International Journal ISSN: 1013-5316 | Drinking water quality has become an alarming concern to potentially pose health risks. This study was conducted to extrapolate the present tap water quality in adjacent communities in a university in Cagayan de Oro, Philippines. Two communities were identified, namely, Lapasan with two stations and Macabalan with three stations. Each station is composed of five sub-stations totaling of twenty five sampling stations. Sampling was carried on December, 2016 to February, 2017 with pH, temperature, dissolved oxygen (TDS), turbidity, salinity, conductivity, total dissolved solids (TDS) as studied parameters in triplicates. Overall the analyzed tap water samples passed the physicochemical parameters studied except for TDS and conductivity with variations found to be site specific (p value<0.05). The TDS, conductivity, and salinity were found to have positive associations (r = 0.94-0.99) with site specific variations. Extrapolating from this, it can be inferred that conductivity showed higher risk quotient (RQ) although may not conclusively suggest contamination. This study is preliminary in nature and further monitoring with other parameters may be considered. |
| Laila S. Lomibao*** Santos O. Ombay | Does Repetition with Variation Improve Students' Mathematics Conceptual Understanding and Retention? | Clarivate Analytics Vol. 6, Issue 6 pp. 2131-2137 June 2017 International Journal of Science and Research ISSN: 2319-7064 | Western education culture viewed repetitive learning as opposite of deep learning and understanding, while Asian mathematics education considered repetition as an important route to understanding. With these conflicting views, this study was undertaken to determine the influence of repetition with variation in students achievement scores, conceptual understanding and retention. Pretest-posttest control group research design was employed.31-item teacher-made multiple choice test with open-ended questionnaire was the main instrument of the study. Results of the analysis revealed that students exposed to repetition with variation approach had significantly higher achievement, conceptual understanding and improved retention. |
| Marjun S. Sequerra*** Christine Marie J. Madrid Cozzte Ebora Kent Excel Lagare Mark Dariel Laid Keno Lamaclamac Vhynne Clyve Llamis Cayetano Moreto III Mary Kathleen Panaligan | Microcontroller Based Coin Counter with Segregator and Packing System | Clarivate Analytics Vol. 3, Issue 4 pp. 116-123 August 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | This study is focused on providing automation and elimination of errors occurring in coin sorting andhandling. This study usestheGizduino ATMEGA 328 microcontroller and Arduino programming languagerespectively. The machine will only process the Philippine peso coins: one peso, five peso and ten peso. The finaloutput of the system is the packed twenty pieces of coins of the three denomination mentioned. The machine passedthe over all evaluation of the committee. Hence the result indicates that the machine is of good quality evidently tobe technically and physically functional, capable of performing its system process. |
| Cordulo P. Ascaño** Mark Anthony J. Torres Jan Deo B. Moldez | Skull Shape Variation in the Armored Sailfin Catfish, Pterygoplichtys Disjunctivus (Siluriformes: Loricariidae), Described using Geometric Morphometrics | Clarivate Analytics Vol. 11, No. 3 pp. 73-80 2017 Journal of Biodiversity and Environmental Sciences (JBES) ISSN: 2220-6663 (print), 2222-3045 (online) | The two-dimensional shapes of the skulls of male and female Armored Sailfin Catfish, Pterygoplichthys disjunctivus, were reconstructed in this study using Thin-Plate Spline (TPS) grids. The rationale for doing this is to draw out hypotheses regarding the life history and population dynamics of the Armored Sailfin Fish, which is becoming a nuisance in some freshwater environs. Because of the skull's rigid structure, it offered many stable landmark points that are compatible with geometric morphometric computations and modeling. Through Relative Warp Analysis of forty-nine homologous points, it was observed that the skulls in both sexes differ widely in the length-width aspect ratio (RWI: 38%). The skulls were also asymmetrical with regard to the anterior latero-ethmoidium side of the structure based on analyses of five other relative warps that had a cumulative variance of 38.29% (RW2 to RW6). Because these variations are localized around regions associated with feeding structures, it does not escape our minds that the fishes might differ in their individual feeding habits. |
| Cordulo P. Ascaño** Al-Axel O. Joaquino Dania P. Piñero Roldan Echem Mark Anthony J. Torres | Outline-based Analysis of Sexual Dimophism in the Sehll of Freshwater Mussel (Margaritifera margaritifera L.) | Clarivate Analytics Vol. 10, No. 3 pp. 43-49 2017 Journal of Biodiversity and Environmental Sciences (JBES) ISSN: 2220-6663 (print), 2222-3045 (online) | This study was conducted to determine the patterns of sexual dimorphism in the vulnerable species of freshwater mussel Margaritifera margaritifera L. The method of Elliptic Fourier Analysis (EFA) was employed to extract shape information from a total of one hundred (100) points collected from digitized images of the shells. The EFA coordinates where then subjected to statistical analyses such as Kruskall-Wallis and Discriminant Function (DFA) test. Results showed differences in the shape of the lateral sides along the hinges of the shell contour pallial line, the pseudocardinal tooth area and at the umbo. Aside from revealing information on sexual dimorphism, the result of this study is discussed in relation to using patterns of sex differences in shell shape to assess the health of aquatic habitats. |
| Archie O. Pachica*** Ryan B. Badana Rey M. Depeña Fatima Marie B. Muring Maricar A. Tadena | Track Log: A Mobile Application for Real Time Tracking and Monitoring of Tracked Routes | Clarivate Analytics Vol. 2, Issue 9 pp. 164-169 September 2017 International Journal of Innovative Science and Research Technology ISSN: 2456-2165 | This research study was conducted to develop a mobile application for real time tracking and monitoring tracked routes. The features that have been enhanced by the researchers were based on the existing applications which lacks of features that presented in this application. The study helps to view the previous tracked route in a single map while user is currently tracking. In this study, users will know which way they have been already and where is their current location. The application has history where user can view previous routes which are categorized by city and municipality. This application also can take pictures while tracking. Pictures can be pinned in the map and can give information on where it was taken. The researchers concluded that this study is a successful one since the application was able to pass the usability and functionality testing. |
| Kennet G. Cuarteros*** Rose May L. Puerte | Classifying Students' Engagement in Computer Games Using Linear Discriiminant Analysis | Clarivate Analytics Vol. 6, Issue 7 pp. 715-722 July 2017 International Journal of Science and Research ISSN: 2319-7064 | Linear Discriminant Analysis can be used to determine which variable discriminates between two or more classes and to derive a classification model for predicting the group membership of new observations. For each of the groups, LDA assumes the explanatory variables to be normally distributed with equal covariance matrices. The simplest LDA has two groups. To discriminate between them, a linear discriminant function that passes through the centroids of the two groups can be used. The study used Linear Discriminant Analysis in classifying a student as addicted or non-addicted in computer games. The study surveyed in the form of questionnaire to the students who are playing computer games and a student at Mindanao University of Science and Technology (MUST). Young Diagnostic Test (eight-item questionnaire) was adopted and used Likert Scale to answer the survey questionnaire. The researcher was able to classify 100 students by using Linear Discriminant Analysis. It was found out that 61 out of 63 or 96.83% is correctly classified as non-addicted and 35 out of 37 or 94.59% is correctly classified as addicted to computer games. Moreover, the study has 4.29% of average misclassification probability which implies that the Linear Discriminant Analysis performs better in classifying behavioral addiction. The study further showed that the students in MUST can manage their time properly as to when to study and when to play computer games as part of their recreational past time. |
| Vima Socorro J. Tandog*** Maritess T. Jariole | Students' Level of Mathematical Comprehension and the Modified Moore's Method of Teaching Mathematics | Clarivate Analytics Vol. 6, Issue 7 pp. 1985-1993 July 2017 International Journal of Science and Research ISSN: 2319-7064 | Teaching methods in Mathematics qualify and quantify the learning of the students. That explains why Mathematics educators today are concerned with the way the subject taught. This study was conducted to determine the effectiveness of a method in improving students performance in Mathematics. This investigated the effect of modified Moores method on students achievement and conceptual understanding in the subject. Also investigated in this study is the relationship between mathematical comprehension and students achievement and conceptual understanding in the subject. The grade 9 students in Cogon National High School, Cogon, El Salvador City constituted the sample of the study. A pretest-posttest quasi-experimental control group design was utilized. From among the three classes, two intact sections were chosen, one for the experimental group and the other for the control group. The experimental group was taught using the contemporary method. At start, a pretest on achievement, conceptual understanding and mathematical comprehension tests were given to the two classes. The same tests were administered after the experimental period. Mean, standard deviation, analysis of covariance and Pearson Product Moment Correlation were utilized to analyze the data. Results of the study revealed that at start, the two groups have comparable low scores in the pretest of the achievement test and in the three facets of understanding, namely, explain, interpret, and apply, and their scores were homogenous with very low standard deviation. In the posttest however, significant difference in the performance of the students in the achievement and conceptual understanding tests was observed in favor of those exposed to modified Moores method. It was also found out that there is a significant relationship between students mathematical comprehension skill and their achievement and conceptual understanding in Mathematics. The researcher recommends the use of modified Moores method in teaching topics in grade 9 Mathematics and for the teachers to help students read, understand, and use Mathematical term, symbols, and expression. |
| Sofia C. Naelga*** Melisa M. Sonsona | The Competencies of the Grade 9 Technology and Livelohood Students of Misamis Oriental General Comprehensive Highschool (MOGCHS), Mindanao, Philippines 9000 | SCOPUS Indexed Vol. 2, Issue 2 pp. 140-148 June 2017 International Journal of Economic Perspectives ISSN: 1307-1637 | The education curriculum continuous to make a progressive turn as it introduce the K to 12 Curriculum. Equally important in the pedagogical change of curriculum is the vital role of Technology and Livelihood Education (TLE). This research study assessed the competencies of the Grade 9 TLE students in the following specifications- Bread and Pastry Production, Dressmaking, Cookery and Consumer Electronics and Servicing. Specifically, the study covered the common teaching methods and the problems encountered by these Grade 9 TLE teachers which include among others, instructional materials material/modules, tools and equipment and laboratories. Descriptive research design was utilized in this study, by using a survey questionnaire administered to the teacher-respondents while TESDA’s Certificate of Competency (COC) assessment was used in assessing the students’ competency. The latter participants of the study were selected using simple random sampling through fishbowl method. There were five students for each specialization totaling to 20 participants. They have undergone actual hands-on and the oral questioning for the issuance of the certificate of Competency (COC). the study found out among others are equipped with the necessary skills and competencies since 90% of them were rated as competent and were issued Certificate of Competency (COC) while those who are rated not yet competent were advice to take the refresher course for reassessment. It has found out that the Grade 9 TLE teacher use a combination of teaching methods to impart the skills and competencies to students. The study has also identifies some problems related to teaching Grade 9 TLE such as, insufficiency of tools and equipment, layout of the shops Does not follow the standards, but despite of these students’ came as competent due to their teachers’ initiative and resourcefulness. Students’ mastery in the subject matter can be appropriately displayed through the conduct of suitable competencies like that of TESDA’s National Competence or in this study the Certificate of Competency (COC). Assessment of competencies takes the learners’ knowledge and attitudes into account but requires actual performance of the competency as the primary source of evidence. Lastly, this study re commends that teachers must be updated with the latest trends specifically on the teaching of K to 12 curriculum, further, they must possess the necessary National Certificate II given and administered by TESDA as this presupposes that learning can only be transferred if teachers themselves are knowledgeable; schools should focused on providing appropriate laboratories for the conduct of technology transfer and enhancement of learning; And future researchers, are encouraged to study other variables which were not included in the study. As such, they can increase the number of respondents for a wider scope and the competency level for greater involvement and extent of measuring students’ competence. |
| Sofia C. Naelga | Nutritional Knowledge and Practices in Relation to the Nutritional Status of the Secondary Students at Mindanao University of Science and Technology, Mindanao, Philippines 9000 | Clarivate Analytics Vol. 7 pp. 115-128 April 2017 Special edition The Turkish Online Journal of Design, Art and Communication ISSN: 2146-5193 | The main purpose of this study was to determine the nutrition knowledge and practices in relation to the nutritional status of Secondary students in Mindanao University of Science and Technology. Specifically, the study answered the question on the profile of the students in in terms of age, sex, mental ability, socio – economic status, size of the family, height, weight, and hemoglobin level. It likewise sought to answer on how do the student factors and socio-demographic factors influence the nutritional knowledge and practices of the students. It further assesses to what extent do nutritional knowledge and practices influence the nutritional status of the students. There are 324 secondary students of MUST, as respondents of this study. A listing of all secondary students of MUST enrolled during the school year was taken from the principal’s office. In like manner, the respondents have already their records at the MUST medical clinic. The researcher had to ask the assistance of Dr. Socessa M. Saquilayan, a medical officer IV of the college, and Mrs. Luchie Demetrio, public health nurse I, who helped in facilitating the medical records. In each student’s records, the researcher got the data on their height and weights of each student were then computed using the tan Hauser method. To find the mental ability of the respondents, the guidance center Placement Services conducted an IQ test (OTIS – LENNON Standard Test – Intermediate Level) to the high school students. In finding out the hemoglobin level of each student, a competent medical technologist from Northern Mindanao Medical Center (NMMC) was requested especially for the purpose. Hemoglobin determination was done during the period of health classes and it lasted for five days. To get the data on nutritional knowledge and practices, questionnaires were given to the respondents. The nutrition knowledge has five (5) areas of concern such as: food groups, functions of nutrients, diet and exercise, physiological basis of nutrition, and recommended amount of food groups to adolescents both males and females. Likewise, the nutritional practices had two (2) areas of concern namely: food selection and food preparation. Furthermore, the statistical tools used were: frequency and percentage distribution to describe the profile of the respondents. Means and standard deviation were used to measure diffusion, as measures of central tendency and variability respectively; stepwise regression analysis was utilized to determine the extent of influence of certain variables on the nutritional knowledge and practices of the students; and simple regression analysis was used to determine the extent of influence of the nutritional knowledge and practices on the nutritional status of the students. |
| Romano A. Pimentel*** Marklenn C. Brandes John Alef T. Cordova Angel A. Daipan Aladdin F. Pomoy Marlon Joie D. Vallejos Jr. Dwyn E. Villahermosa Arveil L. Villazorda Jr. | Design and Development of Three-Lift Elevator Instructional Device Utilizing PLC Controls | Clarivate Analytics Vol. 5, Issue 8 pp. 1599-1602 August 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | In response to the ASEAN 2015 integration, the adaptation of outcomes based education could be a vibrant step to achieve this goal. The study of the design and development of a Three-Lift Elevator Instructional Device utilizing PLC Controls was conducted to address the OBE system implementation in the BS Electro-Mechanical Technology course of the Mindanao University of Science and Technology. The three lift elevator was developed such that the carrier cage driven and open doors thru DC motors can maneuvered via control panel board consisting of push buttons, sensors, seven segment indicators and a Programmable Logic Controller (PLC). This teaching equipment is designed to simulate operation of a normal elevator as well as other complex sequential operations in a building serving three levels with landing door contacts, cabin detection at each floor, floor call buttons in the cabin and on each landing, together with a light indicator on every floor display controlled via PLC operation where the programs are interfaced with the input devices such pushbuttons, sensors and output devices like dc motors, seven segment displays and lights. |
| Ruvel J. Cuasito* | Development and Implementation of Low-Cost Pedagogic Tools in Computer-Aided Design and Computer-Aided Manufacturing | Clarivate Analytics Vol. 5, Issue 9 pp. 1135-1147 September 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | |
| Girlie D. Leopoldo** Myrna S. Ceniza Ronnie L. Besagas Antonio Y. Asoy Noel T. Dael Romeo M. Del Rosario | Assessment of Freshwater Quality of Different Deepwell Sources in Western Misamis Oriental, Philippines | Clarivate Analytics Vol. 29, No. 4 pp. 1003-1006 2017 Science International Journal ISSN: 1013-5316 | The quality of groundwater from main deepwell sources of seven (7) municipalities in Western Misamis Oriental, Philippines were determine to see how these may have been impacted by natural events and anthropogenic activities. The study looks at the well waters' physico-chemical properties (temperature, pH, turbidity, conductivity, TDS, salinity, chlorides, TOC and total hardness) and their microbiological (total coliform and E. coli) characteristics. The physico-chemical properties of groundwater samples were found to be within the Philippine National Standards for Drinking Water (PNSDW)/US-EPA except for the TDS, chlorides and hardness of some sources. Well waters from both Initao and Gitagum municipalities have TDS values of 643.2 mg/L and 578.4 mg/L, respectively, as compared to PNSDW/US-EPA standard limit of 500 mg/L. These same two municipalities Initao and Gitagum as well as the municipality of Libertad also have chloride levels beyond the 250 mg/L limit of PNSDW/US-EPA/EU with values at 360, 318 and 277 mg/L respectively. The Libertad sample also registered a total hardness of 407.5 mg/L CaCO 3 as compared to the 300 mg/L PNSDW limit. These mentioned three (3) municipalities are noticed to have similar geologic structures. All well waters from the seven municipalities, however, failed in total coliform. Escherichia coli were also found in well waters from four (4) municipalities including Laguindingan, Lugait, Gitagum, and Libertad. The presence of these pathogens in the well waters needs to be addressed to make the waters suitable for human consumption. |
| Adonis A. Closas** Eliseo P. Villanueva | Determination of Specific Moisture Evaporation Rate, Energy Consumption and Specific Energy Consumption at Varying Sample Load Capacity per Batch Drying in a Heat Dryer | Clarivate Analytics Vol. 3, Issue 6 pp. 225-232 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | The study is to determine the specific moisture evaporation rate (SMER),energy consumption and specific energy consumption in heat pump drying at varying sample load capacity per batch drying. Three test sample loads were experimented, namely: 170g, 340g and 510g which were dried in the heat pump dryer at a drying temperature of 40 oC and drying air velocity of 0.7 m/s. Mango was used in the experiment as a test sample product. The energy consumed was determined in the kilowatt-hour meter from the measured value, specific moisture evaporation rate, and the specific energy consumption for both wet and dry products were calculated using the measured data. The results showed that 408.6g, 835.1g and 1342.4g of water were evaporated and 14.9 kWh, 13.2 kWh and 12.5kWh of energy were consumed and the calculated SMER were 0.0274 kg/kWh, 0.0633 kg/kWh and 0.1074 kg/kWh for 170g, 340g and 510g test sample loads per batch drying respectively. It was found that the specific energy consumption for both wet and dry products were 21.9 kWh/kg, 9.9 kWh/kg, and 6.1 kWh/kg of wet product and 54.9 kWh/kg, 26.8 kWh/kg, and 17.9 kWh/kg of dry product for 170g, 340g and 510g, respectively. The results indicate a reduction in the energy consumption as the sample load increased. |
| Jocelyn B. Barbosa*** Vergel I. Jabunan Tatiana Kay A. Lacson Ma. Lesley W. Mabaylan Gera Mae N. Napone | HerbApp: A Mobile-based Application for Herbal Leaf Recognition Using Image Processing and Rgularized Logistic Regression Classifier | Clarivate Analytics Vol. 2, Issue 10 pp. 651-658 October 2017 International Journal of Innovative Science and Research Technology ISSN: 2456-2165 | Imaging technology has taken off at its significant level in the last decades. It has been used in different areas of research such are those that tackle plant recognition. In fact, there has been considerable body of work that performs analysis on leaf images, but most of them focus on plant or leaf identification. In this study, we present HerbApp, a mobile-based application that serves as a convenient tool in discriminating herbal from non-herbal plants to develop awareness among people on the significance of the plants whether or not it has been known publicly. Different characteristics and features of plants are used to perform pattern recognition and data analysis. From the captured leaf image, we perform segmentation process based on Localized Active Contour (LAC) model and extract features, which are used to build a classifier for leaf classification using Regularized Logistic Regression (RLR). Experiments show that our approach provides efficient results. |
| Jocelyn B. Barbosa* Angeli L. Magbaril Mariel T. Sabanal John Paul T. Galorio Mikka P. Baldovino | Automatic Survive Detection and Counting using Hybrid Filter and Ellipse Fitting Model | Clarivate Analytics Vol. 3, Issue 6 pp. 208-215 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | Over the past years, the use of technology has become ubiquitous in different organizations involving business ventures. The advent of imaging and database technology has made business owners to be motivated to integrate automation to their business operation (i.e. from small businesses to large enterprises). Swine or hog raising, for example, is a very popular enterprise in the Philippines, whose challenges in production monitoring can be addressed through technology integration. Swine production monitoring can become a tedious task as the enterprise goes larger. Specifically, problems like delayed and inconsistent reports are most likely to happen if counting of swine per pen of which building is done manually. In this study, we present smartCount, which aims to ensure efficient swine detection and counting that hastens the swine production monitoring task. We introduce a method that automatically detects and counts swine based on Sobel filter with 8-neighborhood implementation and ellipse fitting model, given the still photos of the group of swine captured in every pen. Furthermore, the system can generate periodic production reports and can identify the specific consumables to be served to the swine according to schedules. |
| Mae Oljae P. Canencia* Cordulo P. Ascaño II | Marine Zooplankton Distribution Model and Seriation Index across Different Habitat Type | Clarivate Analytics Vol. 5, Issue 6 pp 1646-1652 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | Zooplankton play an important role in ocean food web as they ingest phytoplankton which in turn ingested by small fishes. Thus, the decrease population of zooplankton may indicate less population of fish. The study was conducted to provide analysis of marine zooplankton distribution model and seriation index across different types of habitat in the marine water of Opol, Misamis Oriental Philippines. The integration of the occurrence of data sets obtained from the three (3) sampling sites along with the environmental variables from BIO-ORACLE and Maxent software was able to generate the GIS-based zooplankton distribution model. Findings revealed that three (3) groups of zooplankton were identified namely, copepods, non-copepods and gastropods, with the total of twenty nine (29) species. Copepods mainly consume phytoplankton and other photosynthetic plants (herbivores), while non-copepods mainly consumes their own kind (carnivores). The findings implied that the marine water is still suitable for its survival. However, the predominating carnivorous zooplankton species may indicate slight tolerance to the existing water quality as well as to the insufficient food resources. Similarly, Geographic Information System (GIS) is an effective tool for generating maps on the distribution of species that will be used for future conservation and protection of coastal waters. Keywords: Zooplankton, Seriation, GIS, Habitat |
| Dexter L. Duat*** Erich P. Abad Frances B. Cruz | Design and Development of Automated Lightning Rental System for Common Barangay Facilities | Clarivate Analytics Vol. 5, Issue 6 pp 267-271 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | This paper entitled Automated Lighting Rental System for Common Barangay Facilities sought to address the issues encountered by some users regarding the need of lights during their games in barangay Bulua, Cagayan de Oro City. The system was designed with an automatic mechanism that controlled the electric lightings comparable to pre-paid electric hour consumption by means of a bill acceptor. The developed device was equipped with a thermal printer that prints the receipt after using and a Liquid Crystal Display (LCD) to display the number of hours used. Arduino Mega 2560 was used to implement the system control concepts relative to its corresponding input and output relationship and control framework. The device's billsacceptor where the users has to insert can detect a twenty peso bill, fifty peso bill, one hundred peso bill , a five hundred peso bill and one thousand peso bill. The bill acceptor was programmed to give a time duration of hours to be consumed corresponding to the amount of bill inserted in the device. The project was installed at barangay Bulua Cagayan de Oro City for testing and evaluation. Evaluation results show that the proposed automated lights sport basketball court yielded positive affirmation asevidenced by high mean ratings on pre-established evaluation parameters. |
| Dexter L. Duat*** Mario C. Bebelone Jeffrey M. Gallego | Design and Implementation of 4-in-1 Luggage Bag | Clarivate Analytics Vol. 5, Issue 6 pp 272-278 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | This study outlines the development and innovation of a 4-in-1 luggage bag. It highlights the biometric lock, the GPS (Global Positioning System) tracker, built-in emergency power bank, and the luggage bag’s kick scooter. The study was designed and made for the travellers to be reliable while travelling or during any occasion that uses luggage bags. While providing convenience to the travellers, the prototype also features a security of the luggage bag through the biometrics. The fingerprint scanner was used to access and open the luggage bag, whereas the GPS device was used to track the luggage bag which has a built-in power bank that makes the luggage bag a charging station for gadgets. The luggage bag also features a kick scooter that is attached to the luggage bag for an easy and convenient carrying of the luggage. The prototype was implemented and tested at a bus terminal in the locality. The results of the study yielded positive affirmation on its functionality, operability, aesthetics and safety category validating the need to innovate and reproduce the luggage bag. |
| Vida Fe K. Lagumbay*** Oliva P. Canencia Dona Mae A. Cabillar Rachel Mariz A. Jumoc Ray Mark Woren Quiling | Food Security and Sustainability in the Changing Climate: The Case of Developing Country | Clarivate Analytics Vol. 5, Issue 6 pp 1577-1586 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | Food security is one of the top priority programs of the Philippine Government which has a target to increase farm income and reduce poverty despite of the changing climate. The study aims to provide analysis on the relationship of seasonal and climatic changes on the yield performance of agricultural fruit crops as one major indicator for Agri-Food Security. Specifically to: determine the yield performance of fruit crops for ten years; identify the seasonal changes of fruit crops; the trend of climate; identify what fruit has stable production despite of changing climate; and find out the significant difference of fruit crop yield in particular vis-à-vis seasonal and climatic factors. The descriptive-qualitative method was used. Secondary data was gathered from the Department of Agriculture and PAGASA. Correlation Analysis was employed to determine the relationship Results show, mango, lanzones, papaya and pineapple have positive linear relationship with temperature. For minimum temperature, papaya and lanzones were negatively related while pineapple, mango and mangos teen showed positive relationship. Mango was negatively related to rainfall and relative humidity. Therefore, fruit production is highly sensitive to climate variability which may result to adverse effect on the yield. The changing climate encompasses fluctuations in agricultural production specifically, fruit crops due to physiological alterations and the entire yield performance. |
| Tito M. Mariquit** Charita A. Luna | Probing Student's Conceptual Understanding, Mathematical Fluency, and Mathematics Anxiety through Cognitive-Demand Mathematical Tasks | Clarivate Analytics Vol. 6, Issue 8 pp. 988-991 August 2017 International Journal of Science and Research ISSN: 2319-7064 | This paper deals with three big issues in mathematics education- conceptual understanding, mathematical fluency, and mathematics anxiety. In the experimental teaching, the relationship of the three factors and mental ability were investigated. To investigate and establish logical relationships, two intact groups from among freshman students in School Algebra were taken as participants and then decisive success factors were identified. This leads to the conclusion that infusing non-routine cognitive-demand mathematical tasks is effective in enhancing the participants’ conceptual understanding and mathematical fluency. Mental ability influences conceptual understanding and mathematical fluency but it does not affect the participants’ mathematics anxiety |
| Amparo V. Dinagsao* Antoniette Bacabac | Assessment of Learning Practices among the Colleges in Mindanao University of Science and Technology | Clarivate Analytics Vol. 8, Issue 10 pp 1564-1571 October 2017 International Journal of Scientific and Engineering Research ISSN: 2229-5578 | This paper looks into the assessment of learning practices employed by the instructors of Mindanao University of Science and Technology (MUST). Results of the self-reported skill on the use of the assessment practice when grouped according to their characteristics were discussed. The issues and challenges the instructors deal with are also presented. One hundred forty (140) faculty members of the said university participated in the research which showed that majority are regular employees (74.8%) and the four colleges were well represented. Investigations revealed that instructors seldom to never determine the reliability indexes of their examinations or conduct item analyses among others. It was also revealed that they rated themselves as skilled in writing multiple-choice tests which tells that they may not see the need of conducting distracter analyses. Three of the four colleges have instructors who responded that it is not part of their assessment practice to use portfolio assessments. Returning tests, outputs and projects to students is an assessment practice that effective teachers do. The statistics on the differences of the skill level of the tertiary faculty on employing assessment of learning practices, techniques and tools according to experience showed that the instructors with 10 to 15 years of teaching experience have the highest mean though it did not merit for it to be significantly different from other instructors of lesser or greater number of experiences. The null hypothesis associated with this problem was not rejected. It implied that instructors, regardless of the number of years teaching experience have the same level, that is, reasonably skilled in terms of using the different assessment of learning practices, techniques and tools. The statistics on the differences of the skill level of the tertiary faculty on employing assessment of learning practices, techniques and tools according to college also revealed that across the discipline and colleges, the skill level of the instructors are not significantly different. The respondents expressed that relating with their students is the most challenging. Citing the lack of motivation, short attention span, lack of prerequisite skills and retention problems were observed. A feeling of inadequacy was expressed and the call for opportunities to improve was given. The findings lead to a conclusion that there are techniques commonly used while creating or using a technique is handled by a not highly skilled instructor in terms of assessment of learning. Results also direct us that should in-service training be designed, that it is not necessary to create separate trainings for instructors from different colleges or with different number of years of experience. Mention the abstract for the article. An abstract is a brief summary of a research article, thesis, review, conference proceeding or any in-depth analysis of a particular subject or discipline, and is often used to help the reader quickly ascertain the paper's purpose. When used, an abstract always appears at the beginning of a manuscript, acting as the point-of-entry for any given scientific paper or patent application. |
| Juliet P. Cagampang* Sherwin A. Guirnaldo | Hand Gesture Recognition System using Kohonen Self-Organizing Map | Clarivate Analytics Vol. 2, Issue 10 pp. 139-146 October 2017 International Journal of Innovative Science and Research Technology ISSN: 2456-2165 | —Hand gesture is a nonverbal communication which is very useful to the deaf and mute. It is also used as an alternative way to communicate with computers. Hand gesture recognition has a wide range of applications such as recognizing of sign language, interfaces for humancomputer interaction, robot control, machine vision, smart surveillance, computer games, keyboards and mice replacement. This paper described a hand gesture recognition system, a vision-based approach, to recognize static hand gesture images using Kohonen Self-Organizing Map (SOM), an artificial neural network which learns to classify data without supervision. A set of 29 hand gesture images representing letters of the alphabet, enter, space and backspace keys were captured using a CMU camera. The images were cropped using a photo editor and the edited images were converted to grayscale using the MATLAB software. These images in 1D form were used as training set for the Kohonen Self-Organizing Map. After the unsupervised training, the system was tested using 29 actual hand gestures and 10 trials for each gesture. The system achieved an average of 91% accuracy with only 9% error. The system’s recognition accuracy may be further improved by increasing the number of epochs in the training phase, experimenting to find a better learning rate, using a high-resolution camera to capture the image more precisely to minimize the amount of background noise resulting to a more defined input feature vector to be fed to the SOM. |
| Angelo Mark P. Walag*** Angela Bernadine M. Cepeda Arianne S. Galenzoga Shania Marie J. Sambaan | Initial Phytochemical Screening of the Different Parts of Mansoa alliacea L. (Garlic Vine) | Clarivate Analytics Vol. 11, No. 3 pp. 227-231 2017 International Journal of Biosciences ISSN: 2220-6655 | This study aimed to determine the phytochemicals present in Mansoa alliacea. Standard procedures were utilized for the extraction and determination of alkaloids, flavonoids, tannins and phenols, and quinones using the ethanolic extract of the roots, stem, leaves and flowers of M. alliacea. The results showed that the leaf and root extract contained the most phytochemical present. Stem extract showed a negative indication of any phytochemical tested. The presence of various phytochemicals in the different parts of the plant can be useful in studying the allocation of different chemical defenses of the organism. The presence of phenolic compounds also implies a possible resource for antioxidant compounds. Further studies are suggested to isolate and characterize phenolic compounds present in this organism. |
| Paul Joseph Estrera*** Pamela E. Natan Babe Grrece T. Rivera Faith B. Colarte | Student Performance Analysis for Academic Ranking using Decision Tree Approach in University of Science and Technology of Southern Philippines Senior High School | Clarivate Analytics Vol. 3, Issue 5 pp. 147-154 September - October 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | Predicting students’ academic performance is mostly useful to help the educators and learners improve their teaching and learning process. In this study, the researchers develop a system that merges the work of a dynamic web-based grade book and predictive analytics for the students’ performance. We have performed series of test to evaluate the importance of the attributes and the results shows that the student’s GPA, gender, study behavior, interest in studies and the engaged time in studying of the USTP Senior High School students had a great impact in the prediction. The researchers also found out that using the Decision Tree Algorithm is efficient for the prediction. It can be concluded that this paper will help the students and teachers to monitor the students’ performance in a systematic way and taking appropriate action to improve it. The researchers recommend that the students’ entrance exam results and extra-curricular activities would be included in predicting the academic performance of the students. |
| Maricel A. Escalamdo* Rhoda A. Namoco | A Decision Support System for Optimizing Vegetable Crop Production Considering the Effects of Climate Change | Clarivate Analytics Vol. 2, Issue 10 pp. 591-600 October 2017 International Journal of Innovative Science and Research Technology ISSN: 2456-2165 | This paper describes the development of a decision support system in order to address some of the problems identified in vegetable crop production in the Philippines. These problems include the excessive use of some agricultural inputs and the effects of climate change in agricultural production. Traditionally, farmers tend to increase agricultural inputs in the hope of getting higher production yield without realizing that the quality of the crop might be reduced and the increase in inputs may not significantly increase the production yield. Moreover, due to the changes in the weather patterns, farmers can no longer rely on the traditional planting calendars.In this paper, a model is formulated to optimize vegetable crop production considering the negative effects of climate change by restructuring the traditional planting calendars of certain vegetable crops according to the changing trends of important climate parameters such as temperature and rainfall. Intercropping is also integrated into the system to further optimize the use of some agricultural inputs. This is implemented through developing a web-based decision support system to provide a tool for farmers to simulate the production given the necessary inputs.The results were evaluated by local agriculturists, experts, and farmers and they have agreed on the usability and reliability of the results. The accuracy of the model was also evaluated by comparing the predicted values and actual values which results to a low RSME (root mean square error) value of 0.6. A lower RSME value means higher accuracy. |
| Petal May M. Dal*** Jovaniel Liwanen Leomer Jhon Parba Giselle Karen Montejo Joshua Meg Salomon | Anaphy: An Augmented Reality Illustration | Clarivate Analytics Vol. 2, Issue 10 pp. 254-260 October 2017 International Journal of Innovative Science and Research Technology ISSN: 2456-2165 | Science as we all know is a wide subject to study; it is complicated because most part of it cannot be understood by students unless there is a demonstration or experimentation conducted. This research aims to create a mobile application that would help student s who finds it hard to learn science without visualization or illustration on an object. Science combined with modern technology will help students in this particular problem because it can provide the need of the student for visualization and illustration on the subject which is the Anatomy and Physiology. Using a human detection and an Augmented Reality applied in mobile the researchers develop a mobile app which is the Anaphy Augmented Reality that answers the problem of the subject. |
| Camilo Jose S. Salvaña III* | Process Automation: A Case of Analogue Signal Conditioning using Variable Frequency Drive Controller | Clarivate Analytics Vol. 3, Issue 6 pp. 111-117 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | This study presents the development of a process control system using variable frequency drive (VFD) as applied to water pumping and filling system. The results of the evaluations of the study showed that the use of the VFD conforms to the Affinity Laws of using centrifugal pumps whenever there were variations of pump supply frequency corresponding to the difference between process value and process set point. These variations in frequency results in variation of energy consumption of the three phase motor thus the savings as compared to constant frequency drive |
| Antonio-Abdu Sami M. Magomnang** Sergio C. Capareda Eliseo P. Villanueva | Anaerobic Co-digestion of Agricultural Biomass Waste of Biogas Production | Clarivate Analytics Vol. 3, Issue 6 pp. 118-126 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | The Philippines is an agricultural country with a vast amount of agricultural wastes. The country’s initiatives to reduce dependence on fossil fuels and greenhouse gas emissions through the Biofuels Law (RA 9367) have encouraged the use of bio-based fuel sources. Biogas is a renewable, high-quality fuel which can be produced from various organic raw materials. This study investigated the production of biogas from the anaerobic codigestion of cattle manure with various feedstock such as rice straw, coconut shell, and sewage sludge. Results showed that the methane production increased by 162% from the co-digestion of cow manure with sewage sludge and co-digestion of cow manure with coconut shell and rice straw undergoes ammonia inhibition. With these, the anaerobic co-digestion of cow manure with sewage sludge has the best effect on the treatment of biomass feedstocks of rice straw coconut shell and sewage sludge at various treatment. This experiment would give a viable estimate of the possible methane production from co-digestion of these resources. The enhancement of the biogas yield was attributed to the improvement of biodegradability of cow manure through the addition of sewage sludge. These results are contributing to develop a feasible biogas production from rice straw, coconut shell, and sewage sludge.. |
| Celil May R. Ylagan* | Battery Driven Walk-Behind Rice Seedling Transplanter with Solar and Piezoelectric Regenerative Power Inputs | Clarivate Analytics Vol. 3, Issue 6 pp. 182-188 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | Rice seedling transplanters are used by farmers to have better planting operational efficiency; to aid in challenges in labor scarcity and also to alleviate physical health issues that is related to manual rice planting. Philippines is an agricultural country with rice as its staple food, we have 34% of our agriculture land as rice paddies. Although we have a large area for rice planting, more than 50% of farm holdings is under one hectare. Purchase of large and expensive engine driven rice transplanters can be deemed unnecessary by local farmers. This study aims to show the prospect of replacing a gasoline fueled engine with a lead acid battery – DC Motor set up and the influence of adding STP010-12Solar panels and Piezoelectric array regenerative inputs. By computing and comparing power input and output it was observed that the solar panel can extend battery life to a hypothetical time of about eight (8) minutes as compared to using the battery alone; while the piezoelectric array can further extend it by one (1) minute. With the battery driven equipment’s compact structure it will be more suitable for small scaled rice farmers use. |
| Celil May R. Ylagan* | Design of Solar Desiccant Clothes Dryer | Clarivate Analytics Vol. 3, Issue 6 pp. 189-194 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | The system design uses solar energy as power source for a clothes dryer attached to a room. The device has two processes which is Dehumidified Air Inlet Process and Humid Air Outlet Process, consisting of heat exchangers, fans and a desiccant wheel. In the Dehumidified Air Inlet Process, the outside air is suctioned and dehumidified, acting as the working substance that removes moisture from the drying room. In the Humid Air Outlet Process, humid air from the drying room is removed and its moisture content is reduced by the second heat exchanger of the system. The air is then used as the working substance to regenerate the desiccant. The system can remove 1.7439 kg of moisture within 9.65 minutes. This calculation is based on assumptions and computation based on thermodynamic principles and equations. The purpose in the long term would be to reduce the consumption of electricity used for clothes dryer. |
| Raymund Ray S. Saldua* | Development of an RFID Automated Baggage Counter | Clarivate Analytics Vol. 3, Issue 6 pp. 132-135 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | The study of automated baggage counter is a typical example of a conveyor system with radio frequency identification program. An initial structure was designed and built. Automated baggage counter’s materials and devices specifications were methodically made for a comprehensive output. Existing energies of dynamic model were observed separately to generate the model of the automated baggage counter. State - space model of baggage counter was developed and radio frequency identification was used as a programming medium according to statespace model. Automated baggage counter system has some keys parameters that are directly engaged with system’s performance and response. Parametric studies were done and system responses were observed by variations of key parameters. Observed results from parametric studies were applied into physical model to improve the automated baggage counter performance. |
| Marjun S. Sequera*** Darwin Aboc Melchor Abrogatal Jr. Leojean Amolong Keene Zernan Alviola Louie Sumile | Streamlined Traffic Control System for the Urban Cities in Misamis Oriental | Clarivate Analytics Vol. 3, Issue 6 pp. 70-74 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | The study of microcontroller-based traffic light system is a typical example of an electronic and industrial system. An initial structure was designed and built. Traffic light materials and devices specifications were methodically made for a comprehensive output. Existing energies of dynamic model were observed separately to generate the model of the traffic light. State – space model of traffic light was developed and microcontroller was used as a programming medium according to state-space model. Microcontroller-based system has some key parameters that are directly engaged with system performance and response. System starts with the Microcontroller which will be the main control, Integrated Circuit which is used to link the signal send by the microcontroller to the mechanical relay being energized to light the outputs which are the traffic lights. Proximity sensors are added to measure the volume of vehicles passing in order to adjust the set time of the traffic lights. Parametric studies were done and system responses were observed by variation of key parameters. Observed results from parametric studies were applied into physical model to improve the traffic light performance. |
| Christine Marie J. Madrid* | Design and Development of an Automated Food Cart for Small-Scale Restaurant: An Experimental Prototyping | Clarivate Analytics Vol. 3, Issue 6 pp. 127-131 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | The automated food cart is capable of following a line and detecting an object and designed based on Arduino Mega microcontroller unit with an ultrasonic distance sensor for sensing objects, IR sensors as its primitive reactive sense to follow a line. The automated cart used a Motolite battery as its main power source that is responsible for the movement of the output. There are two fixed wheels that are directly connected to the DC Motor and this is paired by a caster wheel. This automated food cart used Arduino 1.6.9 programming software which is compatible with the Arduino Mega microcontroller that is programmable in C Language. The prototype is low cost compared to the existing product with the same output in terms of performance. This research lessen the human intervention giving the owner high profit less the cost on staff in the long run. On the other hand, this automated food cart can only carry a reasonable amount of food .It has also a limited speed to transfer food from one point to another. Lastly is, it can only perform its’ task in a flat horizontal surface |
| Leonel L. Pabilona** Eliseo P. Villanueva Reuel C. Pallugna | Design and Development of Pico Hydro Power Test Rig | Clarivate Analytics Vol. 5, Issue 6 pp 279-288 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | The Philippines has vast sources for large and small-scale hydropower generation. Most of the large sources had already been developed while there is minimal development in the smaller ones. Since the hydro power generation is highly site dependent, there is an urgent need for our country to do its own research in optimizing the harnessing of energy in the smaller scale; mini, micro, and Pico scales. This study is about the design, fabrication and evaluation of a Pico hydro power test rig. The rig is to be used in testing different designs of small scale hydro power components, especially hydro turbines, both impulse and reaction. The capability of the rig for doing the test was studied by varying the water volumetric flow and pressure head. Through simulation and experimentation, the test rig components were evaluated. The evaluation showed that under high flow conditions, the hydraulic power of the system increased as the pressure head increased. Also, under high pressure conditions, the hydraulic power was observed to increase as the flow increased. The turbine test rig has a maximum capacity of 11kW as shown in this study. On the other hand, the Pelton turbine with 8 buckets was tested in the rig, produced a maximum brake power of 377.273 Watts at 1/2 valves open and a total head of 3 meters. This test rig is expected to contribute to design, modification and performance analysis of turbines and other hydro power component development throughout the country. |
| Dennis E. Ganas** Leonel L. Pabilona Eliseo P. Villanueva | Performance Analysis of a Venturi Water Pump with Different Parts Variation | Clarivate Analytics Vol. 5, Issue 6 pp 163-168 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | The aim of the study is to determine the effects of varying the size of a specific part of Venturi water pump to the discharge volume flow rate and discharge head. A simulated design was fabricated as reference for the part variations. Tests were conducted on an experimental set-up where compressed air is supplied to a submerged Venturi water pump with a modified part. Discharge volume flow rates and heads were then measured and compared to the reference design test results. The obtained results demonstrated that when the chest diameter is increased the discharge volume flow rate also increased but the discharge head decreased. The effects were opposite when increasing both the pitot tube and throat lengths as the discharge flow rate decreased while the head increased. However, the results were fluctuating when changing the converging angle. Results presented in this paper can be of real use in the design and fabrication of Venturi water pumps for different applications. Further study should be made on variations of the converging angle to compare its discharge effect. |
| Kathleen E. Padrigalan*** Erich P. Abad Jay E. Salvador | Optimization of an Innovative Gaseous and Particulates Monitoring Device of Air Quality Set Within National Ambient Air Quality Standards (NAAQS) in the Barangay of Villanueva Misamis Oriental | Clarivate Analytics Vol. 3, Issue 6 pp. 136-143 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | This study is collaboration with Environmental Science and Technology (EST) and Electronics and Communication Technology (ECT) students. The study outline to a descriptive-comparative and experimental type, because the Innovated Automatic Utility Model were used to assess the air quality in the Brgy. Tambobong and Brgy. Balacanas, Villanueva, Misamis Oriental. It emphasizes the automation process of which the device will detect the air quality and automatically compare the detected values with the National Ambient Air Quality Standards (NAAQS) and set an alarm if it exceeds set standards. It is beneficial for the residents and its neighboring barangays, because it was given awareness to the people as to quality of air where the public are breathing. The health of the people of the barangay is the prime concern of this study. The study is designed to withstand different weather condition present in the community. The device is a Solar Panel based that has a 5 Volt output, with a battery as backup supply during night time. The prototype design uses sensors that could detect certain pollutant, these sensors are wired to a Micro-controller and programmed to allow the device to give real-time output based on the air pollutants present in the atmosphere and compare the reading with the given National Ambient Air Quality Standards (NAAQS). The prototype is operating twenty four (24) hours and seven (7) days a week to monitor and asses the air quality of the said Barangay. This study presumes to be reliable to monitor the quality of the air. Furthermore, this study aims the awareness on the community of the hazardous pollutants. |
| Kathleen E. Padrigalan* Ruvel J. Cuasito | Harmonizing Programmable Logic Controller Programming to IEC-61131-3 on A Multi-Axes Pnuematic Trainer | Clarivate Analytics Vol. 3, Issue 5 pp. 164-171 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | This study outlines the development and innovation of a multi-axes pneumatic educational trainer. It highlights the enhancement of a three (3) axis electro-pneumatic trainer into a programmable logic controller-based training tool. The conversion into a PLC-based trainer is also augmented through the harmonization of the PLC programming languages into the current International Electro-technical Commission (IEC) 61131-3 standard. The purpose of adhering into the current PLC programming standard is to provide the most recent PLC applications and enabling technologies into the academic requirements of the students of the University of Science and Technology in Cagayan de Oro City, Philippines. The conventional PLC programming languages that used to be undertaken independently among other languages can now be combined in one programming synthesis in accordance to the preference of the end-user or programmer. Siemens S7-300 is preferred to be used in the study as it has the capability to run under IEC 61131-3 framework. The outcome of the study confirms the excellent mean ratings of most of the evaluation parameters established. Results and findings indicated the survey participant’s excellent acceptability ratings relative to functionality, aesthetics, mobility, marketability and relevance. |
| Erich P. Abad* | Design and Implementation of Paper Vending Machine for Retail of Common Usable Papers for USTP Students | Clarivate Analytics Vol. 5, Issue 6 pp 289-294 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | Automation's biggest advantage is very beneficial in all contexts. It brings efficiency, ease management and possibility of multitasking. This prototype provides a solution posted among paper retailers in printing/photocopy shop centers in University of Science and Technology of Southern Philippines for students using bond papers, newsprints and yellow papers as answer sheets in their exams and for some other purposes. Retailing such papers are very manual, it is tediously counted piece by piece by the shop attendant. With limited human resources, these retail centers somehow managed multitasking in a hard way. Henceforth the possibilities of accuracy on giving the number of papers that commensurate the amount is compromised and also not discounting the dishonesty among some of the buyers. This paper vending machine utilizes a coin-slot machine and will automatically dispense paper of choice by the student depending on the amount inserted. |
| Dennis B. Roble* | Communicating and Valuing Students' Productive Struggle and Creativity in Calculus | Clarivate Analytics Vol. 7, Issue 2 pp. 255-263 April 2017 The Turkish Online Journal of Design, Art and Communication ISSN: 2146-5193 | Students’ productive struggle in mathematics is described as the rigorous learning which can effectively promote grit and creative problem solving. This study aimed to determine and communicate students’ perceptions on the struggle they experienced in their Calculus class, how this affects their learning and what mathematical tasks teachers need to develop to enhance students’ level of achievement and creativity in Calculus. Survey questionnaires were handed to both engineering and mathematics education students and an experimental study was conducted during the first semester of school year 2016-17. In the analysis, students noted that they struggle because they need it for the program they are enrolled while others showed deeper understanding on how they can be productive after the effortful learning experiences. Further, the result of the experimental study showed that the problem-based Hawaii Algebra Learning Project (HALP) model problem solving and the pre-withinpost solution problem-posing activities revealed a positive effect on students’ achievement and enhanced the level of students’ mathematical creativity in terms of fluency, flexibility, and originality of their solutions in the Multiple Solutions Tasks (MST) test. Future researchers may consider utilizing these methods and exploring other strategies which could highly impact students’ achievement level and creative ability in mathematics. |
| Laila Lomibao*** Carmela J. Go Silk Charita A. Luna | Contextualized Problem Solving: It's Effects on Students' Achievement, Conceptual Understanding and Mathematics Anxiety | Clarivate Analytics Vol. 6, Issue 7 pp. 2188-2198 July 2017 International Journal of Science and Research ISSN: 2319-7064 (online) | The study determined the effect of contextualized problem solving on the students’ achievement, conceptual understanding and mathematics anxiety of the second year Bachelor of Elementary Education students of Western Mindanao State University Malangas Campus. It employed pretest-posttest quasi-experimental design using a 10-item teacher-made word problem to assess the st achievement and conceptual understanding of the students enrolled in Advanced Algebra and Trigonometry during the 1 semester of school year 2016-2017. The school has only two sections, so one section was randomly assigned as the control group and the other as experimental group. Of the two groups, 12 participants were randomly selected for interview to validate the findings after the posttest. The one-way analysis of covariance (ANCOVA) was used to analyze the data. An analysis of students’ solutions was done to verify the quantitative data on students’ achievement and conceptual understanding. Results of the analysis revealed that the experimental group of students has significantly higher achievement, conceptual understanding and lower mathematics anxiety compared to the control group which is non-contextualized in approach. It was also found out that students’ achievement significantly relate to their conceptual understanding from both the control and experimental groups. Hence, the researcher concludes that contextualized problem is effective in improving and enhancing students’ problem solving achievement and conceptual understanding in terms of interpreting, applying and explaining algebra concepts. It has significantly reduced students’ anxiety towards mathematics |
| Romeo M. De Asis*** Jeff Clifford Aniñon Alexander Bayron Zebar Cambare Jr. Reymark Dagupan Julius Angelou Echeveria Donald Jay Gamalo Erick Zephaniah Ontong | Multi-Featured Food Cart | Clarivate Analytics Vol. 3, Issue 6 pp. 282-290 November - December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | The study focuses on the design, development, and evaluation of a multi-featured food cart as its application on the street to facilitate the sale and marketing of street food to people from the local pedestrian traffic. In particular, the research aimed to design and develop a Multi-featured Food Cart which has its own electrical system; lighting system, convenience outlets, coin operated outlet, sound system, electric stove and an improve structures; foldable and extendable roof and collapsible tables. The acceptability of the Multi-featured Food Cart is evaluated in terms of its aesthetic, functionality, reliability and safety. The results revealed that the design and development of the Multi-featured Food Cart is operational with its electrical features and structural features. Based on the analytical data presented, the result revealed that the Multi-featured Food Cart is highly acceptable in terms of aesthetic, functionality, reliability and safety. In addition, an improvement on some technical field on mechanical methods for better structure is necessary to attain effective implementation of the carts mobility on the community. |
| Alma N. Abug* Mark John T. Gabule | Point Source Effluents and its Effect on the Microbiological Assessment of its Effluent-Receiving Brackish Water | Clarivate Analytics Vol. 11, No. 4 pp. 220-228 October 2017 Journal of Biodiversity and Environmental Sciences ISSN: 2220-6663 (print) 2222-305 (online) | Two identified point sources of effluents; and the water-effluent receiving brackishwater of Bulua, Cagayan de Oro City Philippines were assessed during low tide and high tide. In-situ parameters were done at the sampling sites and collected algal samples were brought to the laboratory for phytoplankton density and identification. Majority of the effluent parameters, temperature, total dissolved solids (TDS) for the two samplings sites; total suspended solid (TSS) & dissolved oxygen (DO) of the market effluent exceeded the prescribed DENR allowable values. The condition of the brackishwater was supported by its water quality variables that exceeded the tolerable limits. Microbiological examination recorded a high level of total coliform count at both tempo-spatial variations and has exceeded the water-effluent quality standards. The phytoplankton density varies significantly in terms of sampling period and the sampling areas. The highest recorded cell density was observed during high tide for both sampling areas. Blue-green algae obtained the highest planktonic cell density with reference to temporal variations and the presence of Oscillatoria sp., a well-documented bloom-forming species, with Nitzschia sp. and Navicula sp., which are pollution-sensitive species were identified in the area. A positive correlation coefficient, (r) of 0.875 were identified between phytoplankton density and the nitrates & phosphates; and r of 0.615 between phytoplankton density and the amount of lead (Pb). Regression Analysis significantly identified phytoplankton density in the brackishwater as caused by the physico-chemical parameters; nitrates (p.01), phosphates (p.05), lead (p.05) and salinity (p.01). |
| Francis B. Abella* Engr. Ellezer Casiño Engr. Romano A. Pimentel Dr. Alenogines L. San Diego | Electrically Controlled Bearing Puller | Clarivate Analytics Vol. 3, Issue 6 pp. 260-265 December 2017 International Journal of Engineering and Techniques ISSN: 2395-1303 | This study focuses in the development of the Electrically Controlled Bearing Puller. It highlights the electrical control of the bearing puller to motorize the pulling process of manual bearing puller. Time and efficiency were the matter of priority mostly for the operator maintenance. The study was made for the Bearing Puller easier through the newly designed Electrically Controlled Bearing Puller. The purpose of this prototype is to ensure and provide convenience to the maintenanceoperator. It allows easy pulling of the bearing with lesser time consumed. The steps of utilizing this device start with the control of the toggle switch to setup positioning and pulling process. The push button sets positioning and alignment via extension and retraction of the chuck. The pulling system button have maintaining contact to remove the bearing and when the bearing has reach the target position the limit switch the pulling process will be stop while it opens the grip to finish the process. After going through evaluation phase, the study was found to be reliable providing an easy way in dismounting bearing. |
| Richel E. Relox*** Leonardo M. Florece Enrique P.Pacardo Nicomedes D. Briones | Responses of Fruit Bats to Habitat Quantity and Quality of Selected Forest Patches in Mt. Kitanglad Range, Bukidnon, Philippines | Clarivate Analytics Vol. 10, No. 6 pp. 1-13, 2017 June 2017 Journal of Biodiversity and Environmental Sciences ISSN: 2220-6663 (print) 2222-3045 (online) | Mega chiropterans maintain high quality and quantity of the remaining forest ecosystem in Mt. Kitanglad Range. Hence, this study determined the different species of fruit bats in forest patches with varied quantity and quality influenced by human activities. Mist-netting technique was used comprising a total of 522 net-nights established in selected forest patches in Mt. Kitanglad Range. Results showed three Mindanao Faunal Region endemic species (Alionycteris paucidentata, Ptenochirus minor and Megaerops wetmorei), three Philippine endemic species (Haplonycteris fischeri, Ptenochirus jagori and Harpyionycteris whiteheadi), and three non-endemic species (Rousettus amplexicaudatus, Macroglossus minimus and Cynopterus brachyotis). There were nine species under Family Pteropodidae Order Chiroptera. Endemic species dominated the large, diverse forest areas with minimal human activities while non-endemic species inhabited the small forest areas with high level of human disturbances such as agricultural encroachment and growing population densities. The presence of highly tolerant species despite human disturbances in small forest areas would indicate a relatively degrading forest habitat that in turn, may affect the ecosystem services provided by the forest ecosystem of Mt. Kitanglad Range. Thus, endemic fruit bats were associated to large forested areas rendering high quality ecosystem services. This study suggested urgent reforestation of degraded areas to attain high forest quality and quantity and stable ecosystem services. |
| Van Ryan Kristopher R. Galarpe* Girlie D. Leopoldo | Potential Recovery of Silver (Ag) from X-ray Fixer Waste by Alkaline Treatment | Clarivate Analytics Vol. 7, No. 5 pp. 2094-2097 October 2017 Engineering, Technology and Applied Science Research ISSN: 2241-4487(print) 1792-8036 (online) | The study aims to establish a chemical method of silver recovery from x-ray processing fixer waste by alkaline treatment using sodium hydroxide (NaOH). The samples used in the study were collected from selected hospitals and radiology centers in Cagayan de Oro City, Philippines. The NaOH precipitation method was employed by varying the amount of NaOH from 8.00 g to 15.00 g per 600 mL of the fixer waste sample. The recovered crude silver for the two sampling periods ranged from 0.88 g to 2.46 g. The method resulted to optimum recovery at pH 9. The One Way ANOVA indicates that there are significant differences on the amount of silver recovered when varying the amount of NaOH in “sampling A”. The Tukey Test further reveals that there exists an evident rise in the recovered silver using 10.00 g to 15.00 g of NaOH. In “sampling B” the amount of silver recovered does not significantly differ when varying the amount of NaOH used on average basis. The raw data, however, also revealed a significant rise in the amount of silver recovered using 10.00 g to 15.00 g of NaOH where pH was approximately 9. |
| Wiliva G. Andoy*** Jose S. Valmorida | Socio-Economic Profile and Food Safety Knowledge of Street Vendors in Ozamis City, Mindanao, Philippines | Clarivate Analytics Vol. 29, No. 5 pp. 1155-1158, 2017 Science International ISSN: 1013-5316 | The study examined the socio-economic profile and food safety knowledge of the street food vendors as well as the street food vending practices in Ozamiz City. Data were gathered from 54 street food vendors who are found in nearby college campuses, cotta area and cathedral using survey questionnaires collected through personal interviews. Findings revealed that street food vendors were relatively young at 20-30 years old, mostly male who had secondary education, and mostly into stationary type of vending with an income of Php 100-400 per day. Street food vendors operate only in strategic locations such as school vicinities, roadside, church vicinities and transportation terminal. In general, the study revealed that street food vendors have shown a sufficient knowledge on the standards of health and personal hygiene, food handling, and food contamination. However, knowledge regarding food regulation is not established. The findings suggest for a continuous food safety education to diminish gap and improve the knowledge of vendors pertaining to food regulations and thereby improve the safety of street food operations in the area. |
| Oliva Canencia** Vida Fe K. Lagumbay Arnulfo Osio Richmund Palma Rogel Tulang Gina Lacang Remy Tamang Ronela Enguito | Geohazard and Vulnerability Risk Analysis as Inputs in Maistreaming Climate Change in Developing Country | Clarivate Analytics Vol. 5, Issue 11 pp. 217-231 November 2017 International Journal for Research in Applied Science and Engineering Technology ISSN: 2321-9653 | The study generally provides analysis on vulnerability risk and geohazard clarification of the entire river system as inputs in mainstreaming climate change in developing country specifically Northern Mindanao, Philippines. It employed evaluative and analytical type of research with the use of primary and secondary data sources. The expected outputs include the GIS-Based category/classification maps and the vulnerability/susceptibility map for the pilot area project. Findings revealed that in terms of slope, majority of the pilot project falls in the steep category (30-50%) and rainfall pattern did not change dramatically. Land use classification is pasture and vegetation type which is generally grassland. Soil type is generally adtuyon clay and geological history revealed pleiocene-pleistocene (ice-age). Geo-hazard classification of the Agroforestry site is Landslide+Drought while susceptibility map showed moderately susceptible to landslide. Generally, the area is vulnerable to landslide during heavy and prolonged rains and it is vulnerable to drought during prolonged dry seasons due to the very limited forest vegetation. |
| Horacio Factura*** Cordulo Ascaño Dennis Apuan Ralf Otterpohl | Heavy Metal Uptake of Corn Irrigated with Human Urine | Clarivate Analytics Vol. 11, No. 5 pp. 56-62 Journal of Biodiversity and Environmental Sciences ISSN: 2220-6663 | Pit latrine (PL) is one of the most common disposal systems for human excreta in low-income countries but because it is a hole in the ground, infiltration of liquid effluent into the soil can continuously occur. Poor sanitation systems permit the spread of heavy metals in urine to water bodies especially the groundwater. This study investigated the accumulation of heavy metals in shoots of corn plants irrigated with urine. A pot experiment with corn was conducted under greenhouse conditions. Urine was diluted to 3:1 ratio (water and urine respectively) and was compared to control (water only). Using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), heavy metals such as Boron, Barium, Cobalt, Copper, Iron, Manganese, Nickel, Silicon, Strontium and Zinc were detected in shoots of all plants with contents ranging from 0.22 to 2,487.44 milligram (mg) per kilogram (kg). The higher amounts detected in urine irrigated plants than the control proved the presence of the metals in the urine. Reuse of urine will definitely benefit farmers while at the same time reduce the risk of heavy metal contamination in groundwater. |
| Queenilyn B. Albutra** Cordulo P. Ascaño Cesar G. Demayo | Water Quality Assessment Using Macroinvertebrates Along the Mining Area of Brgy. Gango, Libona , Bukidnon | Clarivate Analytics Vol. 5, Issue 2 pp. 99-103 November 2017 International Journal of Advanced and Applied Sciences ISSN: 2313-3724 | In this research, water quality assessment in the Bigaan River, Brgy. Gango, Libona, Bukidnon was conducted to determine the impact of small scale mining on the aquatic ecosystem using macroinvertebrates as bioindicators. Analysis revealed that total suspended solid, total hardness and mercury content is higher in the downstream portion of the river. Species composition of macroinvertebrates differs between sites. Total abundance and species diversity is higher in the upstream portion of the river. The absence of pollution sensitive Ephemeroptera (Mayfly) and Tricoptera (Caddisfly) taxa in the downstream portion of the river indicates that the water quality is deteriorating. Although the level of mercury contamination in the downstream portion is low and within the standard limit, the outcome still indicates that long term exposure to mercury brought by small scale gold mining has detrimental effects on macroinvertebrate communities and on the quality and functionality of the river ecosystem. |
| Van Ryan Kristopher R. Galarpe*** Jacquelyn Tanjay Jemma Lucitte Aaron Ma. Ligaya Suico Anthony Ilano | Environmental Risk Assessment of Sediment and Water in Cansaga Bay, Philippines | Clarivate Analytics Vol. 11, No. 4 pp. 100-113 October 2017 Journal of Biodiversity and Environmental Sciences ISSN: 2222-3045 | Physicochemical analysis of Cansaga Bay, Cebu, Philippines was conducted to evaluate bay water and sediment for environmental risks brought by proposed reclamation and development. The main objective was to provide baseline data about the bay prior to development. Analyzed parameters for bay water were dissolved oxygen (DO), pH, % salinity, temperature, total phosphate (PO4 3-P), ammonia-nitrogen (NH3-N), and total heavy metals (chromium (Cr), lead (Pb), and cadmium (Cd)) and for bay sediments were Pb, Cd, and Cr in total form. Overall, the temperature, pH, DO, and % salinity of bay water were within the permissible limit. However, nutrient loading was pronounced as evidenced by high PO4 3-P and NH3-N with RQ values > 1. Particularly, Pb and Cd in bay water exceeded the threshold indicating higher environmental risk (RQ >1). The Cd in sediment reached the midrange effect for sediment quality guideline, indicating strong contamination (CF > 6). Despite the high levels of Cd in sediment the bay was less likely polluted as evidenced by PLI values <1. |
| Van Ryan Kristopher R. Galarpe*** Gerl John L. Cabigon, et al. | Laboratory Safety Awareness among General Undergraduate Students | Clarivate Analytics Vol. 7, No. 6 pp. 2324-2327 December 2017 Engineering, Technology and Applied Science Research ISSN: 2241-4487(print) 1792-8036 (online) | Safety awareness in the laboratory is essential to reduce occupational risks. This study was conducted to determine the students’ safety awareness in a Physics laboratory. This study determined the student perception towards safety awareness by factors of gender and college from which students are enrolled. A sum of 324 students enrolled in Physics10 (Mechanics and Heat) and Physics11 (Electricity and Magnetism) in the Mindanao University of Science and Technology (MUST) were randomly selected as survey respondents. A modified survey questionnaire was used as research instrument. The results show that the students had positive level of safety awareness and perceived positively on the preventive measures to reduce laboratory risk. Further, regardless of gender students enrolled in Physics 10 were more positively aware towards safety awareness than students enrolled in Physics 11. Similarly, a variation among the students perception towards safety awareness from the College of Engineering and Architecture (CEA) and College of Industrial and Information Technology (CIIT) occurred. Overall, present findings indicate a need to introduce laboratory safety awareness in Physics classes. |
| Van Ryan Kristopher R. Galarpe*** Louisse Mariel Concemino et al. | Electronic Waste Management of Undergraduate Students - The Case of Philippines Secretarian University | Clarivate Analytics Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Electronic waste (e-waste) refers to defective or obsolete electronic appliance and devices. This study was conducted to determine the knowledge, disposal method, recycling options, and alternative handling of e-waste among undergraduate students in a sectarian university in Cagayan, Philippines. A total of 150 respondents, with age range of 16-26 years old were randomly chosen to answer the survey. The results showed that each student owns at least one (1) unit of each electronic product classification and more than half of the respondents(55%) do not have appropriate knowledge about e-waste. The 59% of the respondents disposed e-waste through recycling facilities whereas 41% practiced appropriately recycling. Overall surveyed respondents were willing to segregate their e-waste through recycling facilities. |
| Van Ryan Kristopher R. Galarpe*** Grace B. Lucagbo, et al. | Awareness, Perception and Practices (APP) of Undergraduate Students towards Solid Waste Management (SWM) | Clarivate Analyticsrs Vol. 11, No. 3 pp. 159-168 December 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Solid waste management (SWM) issues have drawn attention elsewhere primarily as a consequence of rapid urbanization and weak environmental policies. This at the latter calls for policy framework linking all sectors particularly the university-government networks. The chance of this concerted collaboration to function efficiently relies on the university’s populace understanding on SWM. This study aimed to assess the undergraduate students of the former Mindanao University of Science and Technology (MUST), Philippines in their level of Awareness, Perception, and Practices (APP) towards SWM. A total of 349 students were randomly surveyed to identify APP. Data collected by self -administered questionnaire were analyzed using frequency count, percentage, correlation, and t-test. For all year levels, it was found that the level of awareness, perception, and practices of students in MUST varied. Overall, no significant difference was determined among factors of age, year level, and college of the students. Present findings can be a basis for policy development on SWM implementation in the university scale. |
| Van Ryan Kristopher R. Galarpe*** Rosalinda Ilogon, et al. | Drinking Water Quality and Water Risk Assessment in the University of Science and Technology of Southern Philippines | Clarivate Analytics International Journal of Advanced and Applied Sciences ISSN: 2313-3724 | The study evaluated the quality of drinking water sources in the University of Science and Technology of Southern Philippines (USTP). The main objective was to determine drinking water quality of different water sources in the university. Six sampling stations were identified which included faucets and water fountains in the different departments of the university, namely engineering, science center, education, and information technology. Physicochemical analyses included pH, temperature, dissolved oxygen (DO), total dissolved solids (TDS), alkalinity, lead (Pb), and cadmium (Cd). Sampling periods commenced on July to September 2014. Overall the university’s drinking water sources were within allowable limits set by the Philippine National Standard for Drinking Water (PNSDW). However, Pb and Cd concentrations were beyond the permissible limits. Risk assessments for both metals showed potential contamination. The results of the study is preliminary by nature and further monitoring be implemented. |
| Van Ryan Kristopher R. Galarpe*** Rosalinda Ilogon, et al. | Dental Waste Management in Cagayan de Oro City, Philippines | Clarivate Analytics Vol. 4, No. 11 pp. 49-53 November 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Generation of hazardous wastes pose ecological ill effects if improperly segregated which necessitates monitoring. This study primarily evaluated the waste management practices of dental clinics in Cagayan de Oro City, Philippines. A total of fifty (50) dental clinics registered at the Department of Environment and Natural Resources-Environmental Management Bureau-10 (DENR-EMB-10) were surveyed. A modified survey questionnaire was administered covering thirty-five (35) questions on wastes identification, management, and disposal. Overall, awareness and perception on waste management guideline was adequate among dental clinic staff workers (dentists and dental technicians). However, practices and implementation of the waste management guidelines were not realized. Noticeably, dental wastes were not properly segregated, collected, and disposed. Dental wastes including hazardous wastes were often mixed with municipal solid waste except for sharps and needles which were placed in plastic bottle containers. The present findings shows the lack of proper implementation of the mandate of Republic Act (RA) 9003-Ecological Solid Waste Management (ESWM) Act of 2000 and R.A. 6969 Toxic Substances and Hazardous and Nuclear Waste (TSHNW) Act. This can be a basis for policy making for hazardous waste management in the Philippines. |
| Van Ryan Kristopher R. Galarpe*** Joseph Bansilay, et al. | Environmental Risk Assessment of Macabalan Creek Water in Cagayan de Oro Philippines | Clarivate Analytics Vol. 11, No. 1 pp. 312-320 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Creek water carries both domestic and commercial wastewater consequently draining organic and inorganic pollutants to coastal water. The present study dealt on the environmental risk assessment of creek water stretching in Macabalan-Cagayan de Oro, Philippines. Selected physicochemical analyses of water samples were carried in both temporal and spatial variations. Risk quotient (RQ), water quality index (WQI), and brine shrimp lethality test (BSL) was employed to draw environmental risk estimate. Overall, dissolved oxygen (DO) concentrations were below the standard set regardless of temporal and spatial variations. Both RQ and WQI showed good statuses on creek water quality despite the low DO. The BSLT similarly indicated a higher concentration for LC50 to be established. The study was preliminary and further monitoring may be essential. |
| Van Ryan Kristopher R. Galarpe*** Jinebeth Pacaña, et al. | Antibacterial Property of Atuna racemosa Raffin. Chrysobalanaceae Shell and Seed Extracts | Clarivate Analytics Vol. 11, No. 1 pp. 443-448 July 2017 Journal of Biosciences ISSN: 2220-6663 | This research evaluated the antibacterial potential of the aqueous, ethyl acetate, methanol, and decocted extracts of the shell and kernel of Atuna racemosa Rafin. Chrysobalanaceae (tabon-tabon). The antimicrobial screening was done against Escherichia coli and Staphylococcus aureus by paper disc diffusion method. The A. racemosa shell and kernel showed resistant to intermediate antimicrobial activity against E. coli and S. aureus in aqueous extracts with mean zone of inhibition of 7.7 mm and 9.8 mm, ethyl acetate extracts with 9.2 mm and 12.8 mm, methanol extracts with 9.5 mm and 13.2 mm, and decoction extracts with 7.3 mm and 11.0 mm, respectively. Ethyl acetate extracts with the highest antibacterial activity against E. coli obtained minimum inhibitory concentration values of 0.11375 mg/mL in shell and 2.92 mg/mL in kernel for both bacterial strains. Methanol extracts with the highest antibacterial activity against S. aureus obtained minimum inhibitory concentration values of 0.81375 mg/mL in shell for both test organisms, and 8.57 mg/mL for E. coli and 2.138 mg/mL for S. aureus in kernel. Overall, the ethyl acetate and methanol extracts of A. racemosa kernel showed good antibacterial potential against bacterial strains. Further investigation is needed to determine the bioactive components present in these extracts. |
| Van Ryan Kristopher R. Galarpe*** Jinebeth Pacaña | Physicochemical Screening and Toxicity Testing of Atuna racemosa Raffin. Chrysobalanaceae Shell and Seed Extracts | Clarivate Analytics Vol. 4, No. 11 pp. 110-115 November 2017 International Journal of Advanced and Applied Sciences ISSN: 2313-3724 | This research evaluated the phytochemical profile and toxicological properties of the aqueous, ethyl acetate, methanol, and decocted extracts of the shell and seed of Atuna racemosa Rafin. Chrysobalanaceae (tabon-tabon). The phytochemical screening was qualitatively tested while Brine Shrimp Lethality Assay (BSLA) was employed for toxicity testing of the extracts. Phytochemical screening of A. racemosa extracts resulted in the detection of the presence of alkaloids, anthraquinones, coumarins, flavonoids, saponins, tannins and terpenoids. The A. racemosa shell and seed extracts induced medium to highly toxic activity to brine shrimp nauplii at LC50 values of 268.605 µg/mL (aqueous shell) 165.195 µg/mL (aqueous seed), 277.9 µg/mL (ethyl acetate shell), 419.919 µg/mL (ethyl acetate seed), 116.032 µg/mL (methanol shell), 92.0427 µg/mL (methanol seed), 482.78 µg/mL (decoction shell), and 121.111 µg/mL (decoction seed), respectively. Ethyl acetate and methanol extracts of A. racemosa seed showed good toxicological properties. Further investigation is needed to determine the bioactive components present in these extracts. |
| Van Ryan Kristopher R. Galarpe*** Julien Joy A. Clemeña | Phytochemical Profile of Bark Unleaf Extract of jacquemonti panicolata | Clarivate Analytics Vol. 11, No. 3 pp. 95-107 September 2017 Journal of Biosciences ISSN: 2220-6663 | This study evaluated the phytochemical profile of the bark and leaf extracts (aqueous, ethanol, and hexane) of Jacquemontia paniculata (Convolvulaceae). Qualitative tests for alkaloids, saponins, tannins/polyphenols, steroids, tannins, anthraquinones, cyanogenic glycocides, and flavonoids were conducted. Further quantification of flavonoids using the Quercitin acid equivalence was employed in all extracts. Overall, alkaloids, flavonoids, saponins, steroids, tannins, and anthraquinones were found to be present in most of the extracts. The total flavonoids varied from 12.81 to 15.51mg/g in extracts. The maximum flavonoid content was found in the ethanolic bark extract (15.51mg/g) while the lowest flavonoid content was found in hexane leaf extract (12.81mg/g). Present findings were preliminary and further investigation is needed to determine the pharmacological applications of the plant. |
| Van Ryan Kristopher R. Galarpe*** Aivie Pedroza, et al. | Water Quality Risk Assessment of Bitan-ag Creek Downstream, Cagayan de Oro Philippines | Clarivate Analytics Vol. 11, No. 2 pp. 194-203 August 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | The Bitan-ag creek downstream traversing the business district of Cagayan de Oro, Philippines was burdened by proliferation of informal settlers and ongoing construction projects, changing the landscape of the creek. This study was conducted to derive an estimate of risk assessment on the present water quality of the creek. Selected physicochemical analyses (pH, temperature, dissolved oxygen (DO), total dissolved solids (TDS), conductivity, salinity, acidity, and alkalinity), rapid toxicity test (brine shrimp lethality assay (BSLT)), risk quotient (RQ) analysis, and water quality index (WQI) served as basis to extrapolate creek water quality status. Overall, the studied physicochemical properties of Bitan-ag creek downstream were within the standards except for elevated concentrations of salinity, TDS, and conductivity. The RQ analyses indicated water quality risks with DO, salinity, TDS, and conductivity in all temporal factors. This was in agreement with WQI analyses indicating unsuitable water quality index. Risk assessment through BSLT similarly established LC50 of 9.293% v/v of the creek water. Extrapolating from the present findings, the Bitan-ag creek downstream was heavily affected by anthropogenic inputs of adjacent communities and establishments. Overall, the study can be a basis for policy implementation for the rehabilitation of the changed Bitan-ag creek landscape. |
| Van Ryan Kristopher R. Galarpe*** Jovit T. Vestil | Strategies of Physics Lab Safety for Undergraduate Programs | Clarivate Analytics Vol. 24, No. 4 pp. 995-1000 September - October 2017 Science International Journal ISSN: 1013-5316 | Good laboratory practices (GLP) in tertiary institutions is a must to ensure safety among laboratory tenants. The implementation of GLP however varies according to discipline with most studies focusing on chemical safety and no specific literature discussed how Physics laboratory safety be implemented. To address this gap this study was conducted descriptively to provide example of strategies of implementing GLP in Physics laboratory. The study considered the case of the University of Science and Technology of Southern Philippines (USTP) Physics laboratories. Overall, strategies of USTP Physics laboratories were observed to present best practices evidenced by improved laboratory safety protocols. These strategies were implemented by (i) improving laboratory facilities; (ii) incorporating GLP in the preliminary discussions in the laboratory manuals; (iii) upgrading instruments and apparatuses with safety data sheets; (iv) training of faculty and laboratory technician on GLP and related activities; (v) scheduling of laboratory classes mainly during the daytime; and (vi) improving the faculty-student ratio in the laboratory. While present study may provide policy strategies to other higher educational institutions (HEIs "), however much work needs to be considered in centralizing GLP in all allied sciences laboratory units. |
| Van Ryan Kristopher R. Galarpe*** Melvin H. Madroñal, et al. | Dust and Chlorophyll Content of Selected Plant Species along the Highway in Cagayan de Oro Philippines | SCOPUS Indexed Vol. 9 pp. 725-730 September 2017 Advance Science, Engineering and Medicine ISSN: 2164-6627 | Plant leaves in thoroughfares may be stressed by air pollutants; hence they are examined for their biomonitoring potential. Two plant species: Ixora coccinea and Bougainvillea spectabilis growing along the highway of Cagayan de Oro City, Philippines were identified. These plant species were used to verify if dust deposition could directly affect leaf morphology. The highway from Bulua to Lapasan was considered as the exposed site where five sites were selected, while the unexposed site was an ecotourism village located two kilometers away from the highway. These plants were selected based on abundance. Ten mature leaves were collected and measured using a caliper to determine the variables such as length, width, and area. To determine chlorophyll content, samples were analyzed using spectrophotometer. Results showed that leaves of both species growing in the exposed site were shorter in length, width, and lesser in area than those in the unexposed site. Both species in exposed site exhibited low chlorophyll content of 0.058 and 0.508 mg/g which were 48% lower per gram than the unexposed site. In all of the factors, there is a significant decrease of the leaf area, chlorophyll content but an increase of dust deposition in the exposed sites. |
| Van Ryan Kristopher R. Galarpe*** Krystal Jane L. Heyasa, et al. | Water Quality and Risk Assessment of Tributary Rivers in San Fernando, Philippines | Clarivate Analytics Vol. 11, No. 1 pp. 266-273 July 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Bukidnon, Philippines being identified as an agricultural province needs to ensure water sustainability vital to support its agroeconomy. This study considered Tigua River with three river tributaries and Salug River with single station in San Fernando, Bukidnon. Analysis employed single sampling technique to initially assess river tributaries. Studied water quality parameters were pH, temperature, dissolved oxygen (DO), oxidizing redox potential (ORP), turbidity, salinity, conductivity, total dissolved solids (TDS) using portable pre-calibrated meters. Nitrates were also determined using Bruccine colorimetric method. Analyzed heavy metals in total form were copper (Cu), cadmium (Cd), lead (Pb), and chromium (Cr) using Flame-Atomic absorption spectrophometry (AAS). Overall, studied river tributaries passed national regulation with risk quotient (RQ) showing no potential pollution. Heavy metals were below detection limit indicating less traceable quantities in river tributaries. Salinity, conductivity, and TDS showed positive correlation. The study was preliminary and further monitoring may be needed. |
| Van Ryan Kristopher R. Galarpe*** Maybellen T. Alerta, et al. | Students Perception on Students Laboratory Equipment in University of Science and Technology of Southern Philippines | Clarivate Analytics Vol. 29, No.4 Sec. B pp. 777-781 July - August 2017 Science International Journal ISSN: 1013-5316 | The study was conducted to determine the perception of undergraduate students towards the standard and improved physics laboratory equipment in the University of Science and Technology of Southern Philippines (USTP), formerly known as Mindanao University of Science and Technology (MUST). This study adopted the research design of descriptive statistical survey, wherein students-constructed questionnaire was used to gather the necessary responses needed from the students. The sample size was comprised of 322 random students from all colleges. This was established in order to extrapolate a better response of perception towards the standard and improved equipment for kinematics and torque experiments. Kinematics had two setups which consisted of stopwatch (standard) and timer (improved). Likewise, the torque experiment consisted of a meter stick with clamp and knife-edged balance (standard) and a hanger (improved). Both setups of each experiment were compared. The data were analyzed using the two-way ANOVA, mean and percentage. Findings show that there was a significant difference in the laboratory equipment depending on the user. For kinematics the stopwatch was perceived better to use. For torque experiment the hanger was perceived positively. Overall, the genders of the respondents do not affect their performance (p-values: 0.96, 1.29, and 0.41). |
| Maricel A. Escalamdo*** Juvert C. Delos Reyes | A Hybrid Dynamic Recommender System using Simple Additive Weighing Method for Service Search with Collaborative Filtering | Clarivate Analytics Vol. 9, Issue 12 pp. 62331-62333 December 2017 International Journal of Current Research ISSN: 0975-833X | This paper describes the development of a dynamic recommender system which provides clients the recommended services based on their preferences. This system is said to be dynamic since the weight of each criterion is defined by the user. In addition, preferences of other users is also included in ranking the recommended services through the use of collaborative filtering. This provides a specific user an idea of what others preferred and may help the user in finding the best offer. In this paper, a Simple Additive Weighting (SAW) method is used to create a function to calculate the ranking score of each possible service that match the user preferences. The criteria used for the service search includes the primary factors in choosing a service such as cost, location, and rating from other clients. In addition, one of the criteria is the preferences of other users which is processed through collaborative filtering. A web application is developed to provide interface for the clients where they can search services according to their preferences. In this paper, the service search is tested on event services. Usability testing is conducted and results revealed that users strongly agree with the usefulness of the system. |
| Gina C. Lacang*** Naomi J. Cero, et al. | Diversity of Anuran Species of Three Habitat Types (Riparian, Agricultural and Residential) along the River of Barangay Mananum, Bag-o, Medina, Misamis Oriental Philippines | Clarivate Analytics Vol. 11, No. 5 pp. 274-286 November 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Anuran belongs to the group of amphibians that are sensitive to the alterations of their environment and they could be used as bio-indicator organisms to follow changes in their habitats. The diversity of anurans was studied in the three sites located along the river of Mananum, Bag-o, Misamis Oriental, Philippines. Visual encounter survey was used to capture the target species. Diversity indices such as species richness, relative abundance, Shannon-Weiner function, evenness, similarity index were analyzed. Environmental variables were measured to know the species-habitat relationships using Canonical Correspondence Analysis (CCA). Results of the study revealed that the area is composed of 6 species of anurans namely: Rana magna, Hylarana signata, Polypedates leucomystax, Occidozyga laevis, Limnonectes Leytensis and Rhinella marina. It was found out that riparian area has the highest species richness and showed higher diversity index compared from the two areas. Based from CCA, it was found out that the area is composed of three (3) habitat types namely: forested; shrub land; and rocky area. Certain species of anurans were greatly associated according to the types where they are exposed. Several threats both man-made and natural-made have been identified that greatly affected the diversity of anuran species in the area. |
| Gina C. Lacang*** Ina Marie G. Abad, et al. | Phytoremediation Potential of Selected Grass Species in the Mine Tailing Pond of Sitio Manlauyan, Gango, Libona, Bukidnon Philippines | Clarivate Analytics Vol. 11, No. 5 pp. 321-328 November 2017 Journal of Biodiversity and Environmental Science ISSN: 2220-6663 | Generally, the study aims to investigate the absorptive capacity of the three dominant grass species namely Imperata cylindrica L. (Cogon grass), Megathyrsus maximus J. (Guinea grass), and Pennisetum purpureum S. (Napier grass) in remediating mercury contamination from a mining tailing pond of barangay Gango, Libona Bukidnon, Philippines. It also assessed the level of mercury contamination in the soil within the study area. The study made used of a descriptive comparative method and One-way Analysis of Variance for the statistical tool. Composite samplings were made for the soil samples and the presence of mercury in both the grass and soil samples were analyzed using a Cold Vapor Atomic Absorption Spectroscopy (CVAAS). Based on the findings of the study, the three grass species showed absorptive capacity and were able to remediate mercury from the soil. The highest mercury uptake was cogon grass with an average concentration of 10.473 ppm followed by guinea grass with an average of 7.521 ppm then napier grass with an average of 3.012 ppm. It also showed that the soil sample without vegetation has greater concentration of mercury than the soil sample with vegetation. |
| Manilyn R. Gualiza*** Sofia C. Naelga Jennifer Blanco | Teacher's Qualification Facilities and Competencies of the Grade 7 Students in Technology Livelohood Education of San Vicente National High School: Basis for Intervention Program | Clarivate Analytics Vol. 7 pp. 1299-1334 December 2017 The Turkish Online Journal of Design, Art and Communication ISSN: 2146-5193 | The research aimed to assess the teachers’ qualification, facilities and competencies of the Grade 7 students in Technology Livelihood Education of San Vicente National High School particularly in cookery and horticulture. Specifically, the study covered the students and teachers’ profile and the problems encountered on the availability of facilities and equipment. The descriptive research method was employed to achieve the objective of the study of which the survey questionnaires were used to identify the strengths of the students based on the teachers’ qualification, the available equipment and tools and the achievement in cookery and horticulture. The general findings revealed that there were more female than male students enrolled in Grade 7 at San Vicente National High School. On the teacher’s profile, the teachers handling TLE were females, all are LET passers, National Certificate II holders and have completed their academic requirements for a Master’s Degree. In terms of facilities, tools and equipment, there were areas which have a minimal percentage of available tools and equipment. However, it was revealed that there was a fair number of facilities for cookery and horticulture. On the other hand, the study further revealed that there were certain factors that affected the level of students’ competencies in both Cookery and Horticulture. |
| Amparo V. Dinagsao* | Student Created Videos as Assessment of Learning in the Mathematics Classroom: Preservice Teachers' Experiences and Reflections | Clarivate Analytics Vol. 5, No. 11 pp. 398-402 November 2017 International Journal of Advance Research ISSN: 2320-5407 | Traditional tests may be less direct in determining the degree of students? learning. With the presence of several gadgets nowadays such as webcams, phone cameras and social media in the lives of the students, asking them to create videos to discuss mathematical concepts or determine a real-world scenario showcasing the geometric theorems provided the instructor some insights into students? thinking beyond the paper-pen test. This study involved seventy-one freshmen students who constructed four videos spread in one semester in Solid Geometry course. Majority of the students reported that they learned new skills such as video editing and using video software while completing the requirements. They also expressed some social, leadership, self-confidence and time management skills were learned. Patience working with a partner was expressed as a virtue developed in doing the video projects. Students shared their experiences in terms of planning, organizing, collaborating, writing and analyzing. Though it was the first time for students to have a course with videos as one of the sources for assessment, majority agreed that it was an appropriate strategy for their instructor to determine the extent of their learning. Student feedback was presented and discussed in the paper. Amount of time needed to do the video requirement was the one of the difficulties students need to deal with. They also presented their suggestions for a more excellent academic experience with the course. The videos showed the level of critical thinking used as well as creativity to explain some mathematical concepts. It is believed that asking the students to create the video played a critical role in increasing not only the passing rate but the degree of understanding of the concepts. |
| Dennis Roble*** Eden Acailar | Text to Teach Educational Media: Implementers Feedback and Learners Academic Performance | Clarivate Analytics Vol. 29, Issue5 pp. 1127-1136 September - October 2017 Science International Journal ISSN: 1013-5316 | This study investigated the implementer’s feedback on the implementation of the text2teach educational media and how it affects the pupils’ academic performance. Specifically, this research studied the manner which the text, image, audio and the video aspects were presented in the text2teach educational media. There were twenty-three (23) teachers and five hundred ninety-nine (599) pupils of the select elementary schools in the Division of Cagayan de Oro City who acts as respondents of this study. Survey questionnaires were given to the respondents and focus group discussion was facilitated to ensure triangulation of their responses. Data were analyzed using frequency, percentage, mean, standard deviation, correlation and regression analysis. The result showed that the text2teach educational media was strongly associated to the pupils’ academic performance, specifically, the audio aspect revealed strong impact however the teachers wanted to enhance the text2teach educational media by showing a localized version. The researcher then proposed a localized version of the text2teach educational media which would significantly satisfy the teachers and hopefully would further improve students’ performance. It was then recommended that text2teach educational media producers/makers may consider making educational videos for the rest of the subjects not only English, Mathematics and Science, teachers using the text2teach educational media may consider finding other alternative videos to supplement the limitations of the available videos of the text2teach and further studies can be made as to the impact of the text2teach educational media on pupils’ study habits, anxiety, learning styles, self-efficacy and attitude towards the subject in a much bigger population. |
| Sofia C. Naelga*** Ailyn Blane | Identification of the Technical-Vocational Tracks Strands to be Implemented for Senior Highschool at the District of Claveria-II, Claveria Misamis Oriental, Mindanao Philippines 9000 | Clarivate Analytics Vol. 7 Pp. 535-543 2017 The Turkish Online Journal of Design, Art and Communication ISSN: 2146-5193 | The Department of Education, Division of Misamis Oriental, has made efforts in preparation for the full implementation of the Senior High School in the year 2016. Several conferences, seminars and meetings have been conducted with TESDA, CHED, to name a few. Critical to the success of the Grade 11 to 12 implementation is the identification of the technical-vocational (tech-voc) track from among the four tracks that can be offered for Senior High School. The objective of this study was to determine this tech-voc strands from which the top three specializations were identified. The teacher-respondents involved were from the District of Claveria-2, Claveria, Misamis Oriental. The district has three secondary schools, namely: Dr. Gerardo Sabal Memorial National High School, Hinaplanan National High School and Patrocinio National High School. Interview was also conducted in the Public Employment Service Office (PESO) to identify the type of industries that could be partners of Senior High School during student-work immersion. Descriptive research method was employed to achieve the objectives of the study in which the survey questionnaires identified the strengths of the district, in general and the schools in particular, to offer the identified specializations based on faculty qualification, school capacity like buildable space, existing laboratories, equipment and tools; and potential industry linkages. Results of the study and its implications are discussed in this paper. |
| Mary Ann E. Telen** Sherwin Guirnaldo | Design Study of a Gyro-stabilized, Remote-controlled Weapon Station | SCOPUS Indexed Mindanao Journal of Science and Technology (MJST) ISSN: 2244-0410 | Weaponry is a crucial element on a battlefield. The artillery should be stable and steady when it is fired to the target. However, when the target is moving, artillery becomes a challenge for the shooter to lock its target; the same case when the shooter is moving. Accuracy and precision is a must to avoid casualties and reserve resources. Hence, this study designed a weapon dock that is controlled remotely to have a stable aim on the target. The technology used sensors called gyroscope that is responsible for indicating change of direction and stabilization. A joystick was used as a remote controller for the pitch and yaw which help the shooter to point and lock its target for better accuracy. Quantitative results were gathered from gyro and joystick that aid the researchers to record errors and inaccuracy in the system as the baseline for the stabilization controller to correct. The study achieved the stabilized disturbance with its best response time of at least 630ms which may be improved with a fast motor and self-tuning fuzzy proportional-integral-derivative (PID) controller. |
| Maria Teresa M. Fajardo Gloria R. Patlunag Malinda E. Saarenas | Perceived Professional Development Needs Among Public Secondary School Science Teachers | Clarivate Analytics Vol.30 No.2 pp. 279-283 April 2018 Science International (Lahore) ISSN: 1013-5316 | The study surveyed forty-eight science teachers in ten public secondary schools to know the graduate programs being pursued and the perceived needs for professional development in terms of training and seminars. The schools were clustered into high and low performing schools based on their performance in the National Career Assessment Examination (NCAE) with focus on the scientific ability component. Data shows that a greater number of science teachers opted for nonscience programs at the graduate level. Science teachers from high performing school expressed the need for training in teaching new instructional materials, teaching skills and assessment approaches as the most urgent. On the other hand, teachers from low performing schools considered teaching new instructional materials, working with underachieving students and how students learn as the most urgent. There is a need for a paradigm shift in the kind of graduate programs science teachers should pursue. It is recommended that professional development is guided by a policy that is acceptable and understood by science teachers. If possible, training should be tailored according to needs. |
| Dennis A. Apuan, John Fruto, Teresita Perez, Rene Juan Claveria, Mars Tan, Mary Jean Apuan, Ellaine Perez (XU) | Phytostabilization Potential of Saccharum sponteneum in chromium contaminated soil | Clarivate Analytics Vol. 13 No. 4 pp. 116-123 2018 Journal of Biodiversity and Environmental Science (JBES) ISSN: 2220-6663 eISSN: 2222-3045 | The Philippine archipelago is abundant in extractable metallic resources, which is being exported to other countries. But when global market prices of chromium go down, it is stockpiled temporarily. This study focused on metallophytes growing in a processing plant in Manticao, Misamis Oriental, which stockpiled ferrochromium for the past five years. Plant and associated soil samples in the area were collected, identified, and tested for the amount of Chromium (Cr). Among ten plant species found in the location of a ferrochromium stockpile, the grass commonly known as the wild sugarcane (Saccharum spontaneum) from the family Poaceae tolerated the high concentration of Chromium – a characteristic of a metallophyte better suited for phytostabilization. It contained 811.0 mg kg-1 Chromium in its below ground biomass, and was found to have potential use in a phytostabilization strategy for chromium contaminated soil. |
| Ramir Phillip Jones V. Sonsona | Exploring Millennials' Engagement with Youtube and Media Usage and Needs Gratifications | Clarivate Analytics Vol. 30 No. 5 pp. 731-734 2018 Science International (Lahore) ISSN: 1013-5316 | Youths of today are constantly bombarded with a lot of media messages. They have been given a wide array of information and selecting prudently from these sources pose a concern for educators and academicians. Corollary to this, this study has examined the YouTube viewing patterns among the millennials. This is done to ascertain the significance of this technological innovation brought about by this media channel. For this purpose, a survey questionnaire was developed to collect the needed data. Salient results of the study included that millennials have been very much connected to YouTube for at least 10 hours and fifteen minutes on a weekly basis. Their exposure to this media outlet have been traced to the technology skills that they learned from social networking sites, followed by creativity and lastly being open to new or diverse views and the learned communication skills. The present study also found out that their main usage of YouTube is for downloading, video sharing and uploading. More so, it is the entertainment factor of the YouTube videos that offer much connectivity and even supplementary tool that these young generations avail for their educational use as well. |
| Jade Cassandra P. Ejem Jessa G. padero Yuraya O. Palasan Wendell T. Talampas Gina C. Lacang | Biomass Profiling of Identified Wood and Non-Wood Resources in Miasamis Oriental and Bukidnon, Philippines | Clarivate Analytics Vol. 12 No. 6 pp. 263-272 June 2018 Journal of Biodiversity and Environmental Science (JBES) ISSN: 2220-6663 eISSN: 2222-3045 | Biomass is a renewable and sustainable source of fuel to produce energy, and it can be developed from organic materials like wood and non-wood resources. The study sought to gather data on the annual volume production, annual waste produced and determine the amount of energy that can be generated from the selected biomass resources namely; coconut, corn, rice, sugarcane and wood in the provinces of Misamis Oriental and Bukidnon. The study employed a descriptive-quantitative type of research and calculates the energy generated from each identified biomass. From the gathered data, the annual waste production with the fuel equivalent of each resources and the energy generated for both provinces were calculated. Based on the results of the study, Misamis Oriental and Bukidnon have an increasing trend of production as well as the amount of energy generated for the past ten (10) years, 2000 to 2009. In 10 years (2000-2009) frame, sugarcane has the highest production in Bukidnon followed by corn, while production of wood has the lowest. Misamis Oriental on the other hand, showed the coconut production as the highest and sugarcane production as the lowest. The volume of waste produced from identified resources are directly proportional to its production and the generation of energy that is calculated, based on its calorific value showed that both provinces of Misamis Oriental and Bukidnon have potential to produce sustainable alternative energy source. |
| Maria Teresa M. Fajardo | Reading Infusion Activities and its Effect on Students' Chemistry Achievement and Attitude | Clarivate Analytics Vol.30 No.2 pp. 267-270 April 2018 Science International (Lahore) ISSN: 1013-5316 | The study aimed to improve students' achievement and attitude in chemistry through exposure to supplemental learning texts. The supplemental learning texts that are used to contextualize the lessons contain questions for students to answer prior to discussion as a practice to help in their reading comprehension. Two intact groups of pre-service teachers were randomly assigned to two treatments involving the use of researcher-developed supplemental learning texts. Using counterbalanced research design, both groups were exposed to the same treatment within a period of four weeks per exposure with seven (7) supplemental learning texts for each group. Two way repeated measures ANOVA was used to analyze the data from the four achievement tests. Results revealed that the students' scores in the tests differ significantly. The pre-service teachers who were taught with supplemental texts were able to get higher mean scores as compared to the pre-service teachers who were not using supplemental texts. The findings suggest that the use of supplemental texts enhance learning of chemistry topics as well as help students move from fair to positive attitude to chemistry. |
| Rosie G. Tan | Strengthening the Students' Achievement in Mathematics through Problem Posing | Clarivate Analytics Vol. 30 No. 2 pp. 229-232 April 2018 Science International (Lahore) ISSN: 1013-5316 | This study aimed to further clarify the claim by several authors that problem posing provides positive outcome on students’ mathematical learning. It utilized a quasi-experimental pretest-posttest control group design to gather the data. The researcher made use of the teacher-made test with a Cronbach alpha reliability coefficient of 0.849. Two sections of grade 8 students at Bugo National High School, Bugo Cagayan de Oro City, Philippines were assigned randomly as the control and the experimental group. The analysis of covariance (ANCOVA) was used to analyze the data collected. Results revealed that there is a significant difference between the scores of the two groups. Thus, the researcher recommends that mathematics teachers in the Philippines may embrace problem posing so that students will perform better in mathematics tests. |
| Vima Socorro J. Tandog Art Walden A. Dejoras | Shuffled Practice Format of Mathematics Problem Solving: Its Effects on Student Performance and Mathematics Test Anxiety | Clarivate Analytics Vol. 30 No. 2 pp. 249-253 March-April 2018 Science International (Lahore) ISSN: 1013-5316 | The paper reports on a study about the blocked practice and shuffled practice formats in mathematics problem solving conducted at Xavier University High School during 2011. The independent variables are the two formats of practice: blocked practice, a method of practice involving problems from multiple lesson types that are arranged by lesson type, and shuffled practice, an unconventional method of practice, also involving problems from multiple lesson types but two problems of the same lesson types are not arranged consecutively. The dependent variables are mathematics achievement scores and mathematics test anxiety scores. The study was conducted at Xavier University High School, Cagayan de Oro City from June 28, 2011 to September 27, 2011 to eighty-eight second year students mixed boys and girls, each belonging to either of the two intact classes, with 44 students per class. The analyses yielded a significant difference on students’ achievement scores and on mathematics test anxiety as influenced by the format of practice. Students who used shuffled practice outscored those who used blocked practice in mathematics achievement test (86.62% vs. 69.20%) and in mathematics test anxiety (8.99% vs. –0.90%). Therefore, shuffled practice should be used as reinforcer of mathematics learning, be adopted when conducting reviews for national assessments and be incorporated into the exercises portions of mathematics textbooks |
| Dennis B. Roble Laila S. Lomibao Charita A. Luna | Enhancing Students' Mathematics Creativity in Calculus through Pre-Within-Post Problem Posing Tasks | Clarivate Analytics Vol. 30 No. 2 pp. 255-261 April 2018 Science International (Lahore) ISSN: 1013-5316 | The purpose of this experimental study was to examine the creative constructs of students enrolled in Differential Calculus at the University of Science and Technology of Southern Philippines, Cagayan de Oro City, Philippines. This study was composed of 132 engineering and mathematics education students enrolled in two different semesters. The experimental group was chosen randomly, exposed to the problem-based HALP model teaching approach and problem posing while the control group was taught using Polya’s problem-solving heuristics. Multiple Solution Tasks (MST) test in Calculus was administered to determine their creative constructs which can be measured in terms of their level of mathematical fluency, flexibility and novelty of solutions before and after the experiment. Results indicated that the experimental group exhibited a remarkable improvement of their mathematical fluency and flexibility but still in the developing level when they are required to posit novel solutions to problems as influenced by the problem-based HALP and problem posing activities. Hence, it is recommended that mathematics teachers may utilize these methods to successfully develop students’ mathematical creativity and future research may also be explored on integrating technology and how it can influence developing student’s mathematical creativeness as well as the mediating role of their affective domains and IQ (intelligent quotient). |
| Janneth Q. Rondina, Charita A. Luna, Dennis A. Tarepe | Strengthening the Students' Achievement and Reducing Anxiety in Mathematics Through Kinesthetic Teaching Technique | Clarivate Analytics Vol. 30 No. 3 pp. 477-480 May-June 2018 Science International Lahore ISSN: 1013-5316 | The study determines the influence of the kinesthetic teaching technique on the students’ achievement scores and anxiety in Mathematics particularly in Trigonometry. The kinesthetic teaching technique was compared to manipulative with students discourse technique which was claimed by many researchers to be a good teaching strategy. It was conducted to the junior high school of Misamis Oriental General Comprehensive High School, Cagayan de Oro City, Philippines. Results of the analysis revealed that the achievement scores of the students exposed to kinesthetic teaching technique were as good as those students exposed to manipulative with student-student discourse. Also the mathematics anxiety of the students were significantly lower as they exposed to kinesthetic teaching technique compared to the students exposed to manipulative with student discourse. |
| Maria Teresa M. Fajardo | Practice and Quality of Living Environment of High Dengue incidence and Low Dengue incidence Communities: A Comparative Study | Clarivate Analytics Vol. 13 No. 2 pp. 163-172 August 2018 Journal of Biodiversity and Environmental Science (JBES) ISSN: 2220-6663 eISSN: 2222-3045 | Problems with dengue are often associated with dengue preventive practices and quality of living environment as a consequence of improper solid waste disposal and inconsistent water supply. The study aims to compare 10 communities that were categorized as high dengue incidence and low dengue incidence as reflected in the 2015 Department of Health report. The communities were compared on the quality of living environment and practices of the residents related to dengue prevention. Descriptive research design was used with interview and focus group discussion as techniques in validating field observations. An adapted and validated survey questionnaire on dengue preventive practices was also employed. The on-site observations and interviews were conducted among 50 respondents who have experienced dengue and 50 randomly selected respondents who have not experienced dengue. Results indicated that high dengue incidence communities have problems with water supply and proper solid waste disposal. On the other hand, low dengue incidence communities have better discipline in handling their solid waste. A more aggressive campaign against dengue vectors may be necessary. Collaboration between the academe, Department of Health and local government units may be pursued to ensure timeliness and relevance of dengue prevention efforts. This includes among others, tailoring the education campaign to the needs of the different stakeholders. |
| Richel E. Relox Leonardo Florece (UPLB) | Responses of Fruit Bats to Physical Factors of Selected Forest Patches in Mt. Kitangklad Range, Bukidnon, Philippines | Clarivate Analytics Vol. 12 No. 3 pp. 324-333 March 2018 Journal of Biodiversity and Environmental Science (JBES) ISSN: 2220-6663 eISSN: 2222-3045 | Fruit bat species playing a vital role in forest regeneration are affected by the physical factors in the remaining tropical forest patches influenced by the anthropogenic activities in Mt. Kitanglad Range. Fruit bats were surveyed in the selected forest patches along the increasing elevation characterized by varied temperature, humidity and rainfall. Mist-netting method was done to capture fruit bats for wet and dry seasons in a year in Mt. Kitanglad Range. A total of nine (9) species of fruit bats under Family Pteropodidae such as Ptenochirus jagori (Greater Musky Fruit Bat), Ptenochirus minor (Lesser Musky Fruit Bat), Alionycteris paucidentata (Mindanao Pygmy Fruit Bat), Haplonycteris fischeri (Philippine Pygmy Fruit Bat), Cynopterus brachyotis (Common Short-Nosed Fruit Bat), Rousettus amplexicaudatus (Geoffroy’s Rousette), Macroglossus minimus (Long-Tongue Nectar Bat), Harpyionycteris whiteheadi (Harpy Fruit Bat) and Megaerops wetmorei (White-Collared Fruit Bat) were recorded in all elevations in Mt. Kitanglad Range for both seasons. Based on the netting effort, fruit bats were not affected by seasonal variation in the selected forest patches at all elevations given the foraging, roosting and breeding sites. Fruit bats distribution showed positive correlation to temperature but negatively correlated to elevation, relative humidity and rainfall patterns in forest patches. Thus, forest patches provided habitat for fruit bats with favourable climatic conditions in different elevation. This study would recommend protection of forest patches in the higher elevation and reforestation of degraded areas in highly threatened lowland areas of Mt. Kitanglad Range. |
| Antonio-Abdu Sami M. Magomnang Sergio C. Capareda (Texas A & M University) | Effects of Sequential Sodium Hydroxide Ultrasonication and Hot Water Treatment of Rice Straw and Coconut Shell on Biogas Production | Clarivate Analytics Vol. 11 No. 18 pp. 1-12 May 2018 Indian Journal of Science and Technology ISSN: 0974-6846 eISSN: 0974-5645 | This study aims to determine the effects of various pretreatment methods on the biomass properties and biogas yield in the anaerobic co-digestion of agricultural biomass waste co-digested with different biomass feedstocks for power generation applications. Methods: This study was carried out in order to determine the effects of the methane production on the two pre-treatments (3% and 4% w/v NaOH) subjected to sequential NaOH-ultrasonication and Liquid Hot Water treatment for the rice straw and coconut shell feedstocks, which can be used as substrates for the anaerobic co-digestion experiments; using cow manure, digested manures and sewage sludge as inoculant. Findings: Results showed that the methane production increased by 140% and 290% from the pre-treatment of rice straw and coconut shells, respectively. With these, the pre-treated coconut shell subjected to ultrasonication with 3% NaOH and Liquid Hot Water has the best effect among the pre-treatment of biomass feedstocks of rice straw and coconut shell at various NaOH concentrations. Applications: The results of this experiment would give a viable estimate on the possible methane production from codigestion of these resources. The enhancement of the biogas yield was attributed to the improvement of biodegradability of rice straw and coconut shell through the pre-treatments. The changes of chemical compositions, chemical structures, and physical characteristics made rice straw and coconut shell feedstocks become more available and biodegradable and thus were responsible for the enhancement of the biogas yield. These results are contributing to develop a feasible biogas production from rice straw and coconut shell. |
| Florife D. Liwanag, Daniel Mostrales, Kristine Sanchez, Ruben Tudio, Vincent Malales, and Ma. Teresa Ignacio (MSU-IIT) | GIS-based Estimation of Catchment Basin Parameters and Maximum Discharge Calculation using Rational Method of Luinab Catchment in Iligan City | Clarivate Analytics Vol. 147 No. 2 pp. 327-342 June 2018 Philippine Journal of Science ISSN: 0031-7683 | Urban flooding is triggered when surface runoff exceeds the capacity of drainage systems, which happens when heavy rainfall pours on to drainage areas with limited capacity, or on medium rainfall that falls on poorly planned or maintained drainage systems. Due to accelerated population growth and change in land use patterns, human vulnerability to floods has increased, and it is likely to increase further unless changes are made on the urban drainage system. The use of surface runoff and drainage modeling would help to identify- areas that are susceptible to flooding and to determine the dynamic capabilities of urban drainage network. The use of GIS-based software and hydrologic modeling will provide fast and reviewable assessment of the existing drainage system of the catchment. GIS generated results – especially in the delineation of catchment and sub-catchments and in identifying drainage networks – were validated in the field. Field observations also showed the presence of pollutants and heavy vegetation in the drainage system. Corrected and updated data were then used to calculate of peak discharges using the rational method. The use of rational method in the calculation of the design peak discharges for the catchment resulted in the following values: 21.59, 29.07, 33.82, and 40.31 m3/s for return periods of 2-yr, 5-yr, 10-yr, and 25-yr respectively. The main canal towards the outlet of the catchment is calculated to have a maximum capacity of 7.35 m3/s. This is only 35% of the peak discharge of the storm with a two-year return period. Improvement of the drainage system could be achieved by a) increasing the capacity of main canal and/or b) providing an additional outlet from identified flood-prone areas. The improvement could be further analyzed and evaluated in succeeding hydrologic studies. |
| Liezl M. Jabile, Reynaldo M. Vequizo, Romnick B. Unabia, Jun Rey S. Lincuna, Majvell kay G. Odarve-Vequizo and Shigenobu R. Miñoza (MSU-IIT) | Structural, Cystallographic and Morphological Properties of Microwave-Assisted Growth of Nano-Apatite Powders | SCOPUS Indexed Vol. 5 Issue 7 Part 1 pp. 14824-14829 June 2018 Materials Today: Proceedings eISSN: 2214-7853 | In this study, we present the changes of structures, lattice parameters, crystallinity and morphologies of nano-apatite powders grown via dropwise mixing wet chemical precipitation with microwave treatment for fast synthesis of apatite powders using appropriate amounts of calcium and phosphorous precursors. FTIR, XRD and SEM/EDX were used to characterize the obtained powdered samples. Nano-sized low crystalline and stoichiometric apatite powders comparable to stoichiometric commercial apatite powders were successfully synthesized. The lattice parameters decreased for microwave-treated apatite powders prepared via dropwise addition of phosphorous precursors. The powders exhibited agglomerated nano-sized spherical grains surface morphology. |
| Mary Jean D. Salvaña Alma N. Abug | Reduction Estimates of CO2 Emission at the Relocation Site of Typhoon Victims: An Alternative to Climate Resiliency | Clarivate Analytics Vol. 13 No. 5 pp. 83-90 November 2018 Journal of Biodiversity and Evironmental Science (JBES) ISSN: 2220-6663 eISSN: 2222-3045 | The increasing amount of carbon dioxide in the atmosphere that causes global warming is one of the major forces that challenges every country to search for alternative energy sources. The study attempted to quantify the carbon account reduction of using an alternative energy source, Solar Photovoltaic, SPV panel at the relocation site of Sendong Typhoon victims at the elevated part of Cagayan de Oro City, Philippines and to determine how it can provide residents resiliency to global warming. A total of 30 households were purposively selected to answer the survey questionnaire in terms of the family income, the components of solar system installed and its estimated costs as well as the generated electricity in kW/hr., the payback time and the avoided carbon dioxide, CO2 emission. Results showed56.7% of the households were using basic SPV 50-wattage panel that supplies energy for lighting, battery charging and operating mini electric fans, but the energy generated per household varied depending on the SPV panel used. The lower the energy, the longer the payback period, generating an average of 6.12 kW-hr per month. Quantitatively, the CO2 emission that can be avoided is approximately 0.861 metric ton per year for households using the 50-watts. Moreover, an estimate of 2.583 metric ton/year of CO2 emission can be avoided for a-30 household respondents ranging from 50-200 watts usage of SPV panels. In general, the adoption of a household to spend for a panel to be used for energy generation can be an alternative measure for climate resiliency. |
| Wendel D. Talampas Ruel C. Cabahug | Morphotectonic Characteristics of the Iponan River Wastershed in Cagayan de Oro City, Philippines | SCOPUS Indexed Vol. 16 pp. 115-131 2018 Mindanao Journal of Science and Technology ISSN: 2244-0410/2449-3686 | Using the Advanced Land Observing Satellite Phased Array type L-band Synthetic Aperture Radar (ALOS PALSAR) digital elevation model, morphometric parameters were derived and utilized in the morphotectonic analysis of the Iponan River Watershed. Morphometric analysis of the area revealed that the watershed is in the early maturity of geological stage. Its mountain front sinuosity index indicates that portions of the watershed area are slightly and tectonically active. Other parameters suggest that the area is experiencing rapid uplift and undergoing ground tilting that may be influenced by tectonic activity. The presence of a tectonic line running through the extent of the Iponan River could be a potential source of tectonic activity and influence morphological processes in the watershed area. Its channel concavity suggests that the watershed has rapidly rising slopes as may be caused by the uplift. Overall, the Iponan River Watershed area is generally tectonically active and that its morphotectonic processes may be moderately controlled by tectonic activity. |
| Rhoda A. Namoco Kathleen C. Mendoza, Raymond O. Pailagao, Jenefer B. Vallar | Optimizing Nutrient Intake of Holstein Dairy Cattle during Early Lactation using Locally Available By-Products | Clarivate Analytics Vol. 11 Issue 27 pp. 1-7 July 2018 Indian Journal of Science and Technology ISSN: 0974-6846 eISSN: 0974-5645 | This study made use of a computer-based technique to optimize the nutrient intake of Holstein dairy cattle during early lactation using locally available by-products in order to investigate, analyze and determine how best locally available by-products can be combined effectively and efficiently to formulate least-cost ration. Method: Eight locallyavailable by-products, namely fish meal, corn bran, soybean meal, copra meal, limestone, cracked corn, molasses and spent grain, were considered in this study. In order to obtain optimal feed rations, mathematical models were formulated and solved by taking into consideration the nutrient requirements (net energy for lactation (NEl ), Rumen Degradable Protein (RDP), Crude Protein (CP), Calcium (Ca), and Phosphorus (P)) of lactating dairy cattle, and the nutrient compositions and any restriction factor of the by-products. Findings: Results of the study provide least cost rations that meet the specified nutrient requirements of lactating Holstein dairy cattle. Novelty: Dairy cattle contribute much to the milk production in the country. Hence there is a need for proper cattle feeding management since feeds greatly affect milk production. |
| Consorcio S. Namoco Jr. Jeffrey Balangao F.J. Podioton A.E.C. Ambolode, N.M. Anacleto (MSU-IIT) | Production of Iron-Chromium-Nickel Metal Alloys via Reduction of Mixed Chromite Ore from Zambales and Laterite Ore from Taganito, Surigao del Norte under Argon Atmosphere | Clarivate Analytics Vol. 11 Issue 37 pp. 1-11 October 2018 Indian Journal of Science and Technology ISSN: 0974-6846 eISSN: 0974-5645 | To investigate the reduction of mixed chromite and laterite ores which were obtained from Zambales and Surigao Del Norte provinces to produce iron (Fe)-chromium (Cr)-nickel (Ni) metal alloys. Methods: Raw ores were mixed according to eutectic point of MgO-Al2 O3 -SiO2 ternary phase diagram for which samples are melted at 1600ºC. Isothermal reduction of 12/88, 25/75 and 50/50 chromite/laterite samples was conducted at 1600ºC in one hour in vertical electric arc furnace using coconut charcoal as reductant under argon atmosphere. Non-isothermal reduction was conducted at 10ºC/min heating rate from 200ºC to 1500ºC to show reduction characteristics of the mixed sample. Findings: Metal recoveries were 69.70% (12/88), 78.99% (25/75) and 99.62% (50/50), respectively. Chromium contents increased at increasing percentages of chromite in the mixtures, i.e. from 12% to 50%. Nickel contents decreased at decreasing laterite contents from 88% to 50%. Scanning electron microscope (SEM) revealed presence of dark, light and some small black phases for 12/88 metal alloy; dark, light phase and gray phases for 25/75 and dark and light phases for the 50/50. According to EDS analyses, dark phases present in the metal alloys had 26.03-46.97% Fe, 35.39-59.41% Cr, 0.35-1.02%Ni and 10.14-12.44% C. Light phases consisted 62.31-67.33% Fe, 3.99-4.62% Cr, 12.05-15.75% Ni and 3.1-6.7% C. Results showed partial reduction at around 920ºC and maximum reduction at about 1450 ºC. Reduction was not completed at 1500ºC. Extent of reduction reached up to 32.16%. The extent of reduction was greatly attributed to the high concentrations of magnesia and silica and lower hematite (Fe2 O3 ) in the sample. Improvements: Utilization of reductants such as graphite and activated carbon and other Philippine chromite/laterite mixing compositions that would result to higher chromium and nickel contents in alloys are recommended. |
| Consorcio S. Namoco Jr. Lilibeth Coronel (MSU Naawan) Wilfredo Badoy (Ateneo de Davao) | Identification of an Efficient Filtering-Segmentation Technique fro Automated Counting of Fish Fingerlings | Clarivate Analytics Vol. 15 No. 4 pp. 708-713 July 2018 The International Arab Journal of Information Technology ISSN: 1683-3198 | The counting of fish fingerlings is an important process in determining the accurate consumption of feeds for a certain density of fingerlings in a pond. Image processing is a modern approach to automate the counting process. It involves six basic steps, namely, image acquisition, cropping, scaling, filtering, segmentation, and measurement and analysis. In this study, two (2) filtering and two (2) segmentation algorithms are identified based on the following observations: the nonuniform brightness and contrast of the image; random noise brought about by feeds, waste, and spots in the container; and the likelihood of the image samples or application used by the different authors of the smoothing and clustering algorithms in their respective experiments. Four (4) combinations of filtering-segmentation algorithms are implemented and tested. Results show that combination of local normalization filter and iterative selection threshold yield a very high counting accuracy using the measurement function such as Precision, Recall, and F-measure. A Graphical User Interface (GUI) is also presented to visualize the image processing steps and its counting results. |
| Jennefer O. Parcutilo | Does Paired Formative Assessment Enhance Mathematics Performance? | Clarivate Analytics Vol. 30 No. 5 pp. 771-442 October 2018 Science International (Lahore) ISSN: 1013-5316 | This study is a sequel of a study conducted in 2008 which find the paired formative assessment effective in increasing calculus performance of students in the science curriculum. This study reports the result of the paired formative assessment as an alternative assessment which aimed to validate its effects on students' mathematics performance among students in the non-science curriculum. The experimental study was conducted for four consecutive school years during the second quarter. Participants were from the last three batches of fourth-year high school in the Revised Basic Education Curriculum (RBEC) and the first batch of Grade 10 of the K-12 Curriculum. Two sections were randomly chosen from each batch as experimental and control groups. This study found that the formative assessment approach have a significant effect on high school students' performance in quarter examinations. Those who were allowed to discuss by pair during frequent short quizzes in mathematics class, consistently performed significantly higher than those who answered quizzes independently. Further analysis also revealed that even for students who are in the K-12 curriculum, the students in the paired assessment performed better than those in the individual assessment. The last batch of RBEC , SY 2014-2015, scored the highest among the four experimental groups. This may be explained by the strong desire of students not to fail and avoid the additional 2 years in senior high school. |
| Marife V. Ubalde Cyrille Mae D. Rosales | Predicitive Efficacy of Student and Teacher Related Factors on Students' Mathematics Learining | Clarivate Analytics Vol. 30 No. 6 pp. 819-823 November 2018 Science International (Lahore) ISSN: 1013-5316 | The study was conducted to examine the potential factors influencing the academic performance of Grade 11 STEM students in University of Science and Technology of Southern Philippines. The respondents for this study were two hundred sixty four (264) 11th grade students. A survey was conducted by using Likert Scale for information gathering about the potential factors relating to academic performance of students. The academic performance was gauged by the result of their midterm grade. Mean and Standard Deviation were applied in determining the extent of students and teacher related factors and the level of academic performance of the students’ achievement. Multiple regressions were used to test the significance of the relationship of the variables. The results of the study revealed that the student-related factors in terms of interest in mathematics and study habits do not significantly predict the students’ mathematics performance. The same thing goes with the teacher-related factors includes personality traits, teaching skills and instructional materials. |
| Anna Fay A. Edulsa Marylene S. Eder Kenn Geno G. Malinao Dexter L. Duat | Heatmobi: Temperature and Humidity Monitoring for Household and Warehouse Mobile Application | Clarivate Analytics Volume 11, No. 47 pp. 1-7 2018 Indian Journal of Science and Technology ISSN: 0974-6846 (print); 0974-5645 (online) | To create a hardware and software tool that can be used for monitoring the temperature and/or humidity inside a household and/or warehouse. Methods/Statistical Analysis: The Raspberry Pi3 would be set as a stationary device that serves as a database server to collects and saves the data of temperature and humidity data with the help of the Digital Humidity Temperature Sensor (DHT22). The researchers conducted a testing inside the household and warehouse. This testing is conducted in order to evaluate the functionality, reliability, and usability of the device and mobile application. Findings: Based on the testing conducted, the system is capable to detect a temperature and humidity data, and it can test the place inside whether it is high or normal on a real-time basis. Application/Improvements: In addition, many users can connect to the system that really does help a lot in notifying them to be aware of the temperature and humidity range level that is not anymore suitable for the food, people, can goods, computer parts and others. |
| Maria Antonieta A. Bacabac Dennis B. Roble Garry Becoy | Teachers' Beliefs on the Nature of mathematics and Its Implications to the teaching and Learning of Mathematics | Clarivate Analytics Volume 30, No. 6 pp. 833-836 2018 Science International (Lahore) ISSN:1013-5316 | This study determined and compared the beliefs of mathematics teachers on the nature of mathematics among pre-service, senior high school and college mathematics teachers of the University of Science and Technology of Southern Philippines and discussed the implications of the nature of mathematics on their teaching and learning of mathematical concepts. This study involved 120 pre-service, seven (7) high school and 16 college mathematics teachers of the university. Data were gathered using survey questionnaire adopted from TEDS-M and analyzed using mean, standard deviation and analysis of variance (ANOVA). Results indicate that pre-service mathematics teachers showed a different perception as compared to the senior high school and college mathematics teachers which might be due to their maturity and experience in the field. The researchers then recommend that higher education institutions such as USTP need to prepare rigorously pre-service mathematics teachers to have a better beliefs on the nature of mathematics so they will be job ready when they graduate in their field of study. Further research might also be conducted on the learning and program effectiveness of mathematics and its impact on students’ learning and teachers’ performance and explore on the relationship of these different beliefs domains and other vital skills needed for mathematics teachers to excel in the profession |
| Ruel R. Cabahug Arguita, MB Dela Torre, S.M.E Valledor, M.S. Olivares, SM.D. | Factors Influencing the Delay of Road Construction Projects in Northern Mindanao | SCOPUS Indexed Vol. 16 pp. 213-223 2018 Mindanao Journal of Science and Technology ISSN: 2244-0410/2449-3686 | Delayed construction project implementation is one of the most common problems that the government experiences all the time. With so many factors attributed in causing delayed infrastructure projects, there is a need to determine the most prevalent causes of the delay in project completion. This study evaluates the factors influencing the delay of road construction projects supervised by the Department of Public Works and Highways (DPWH) in Northern Mindanao. A total number of 139 completed road projects during year 2016 with 25 contractors were evaluated. Findings revealed that there were four factors that caused the delay of road construction projects; these are (1) road right of way, (2) change in quantity, (3) peace and order and (4) heavy rain. |
| Sofia C. Naelga Oliva P. Canencia | Product Variations, Formulation and Marketability of Stevia Leaf Extract as Organic Sweetiner for Bread and Pastry | Clarivate Analytics Vol. 9 Issue 4 pp. 282-306 November 2018 International Journal of Advanced Biotechnology and Research ISSN: 0976-2612 (print) 2278-599x (online) | This study determined the Product Variation, Formulation and Marketability of Fresh Stevia (Rebaudiana bertoni) Leaf Extract as Organic sweetener for bread and pastry. It looked into the level of acceptability (appearance, taste, aroma, texture, and color) of a product using the different formulations in terms of the following: 50% stevia leaf extract; 75% stevia leaf extract; 100% stevia leaf extract; and 100% refined sugar in the baking of Stevia Baked Siopao, Stevia Chiffon Cake, and Stevia Pandesal; and the potential marketability of the bread and pastry products with fresh stevia as an alternative organic sweetener The data shows there is no significant difference in Appearance (F=0.748NS), Aroma (F=1.056NS), Taste (1.898 NS), and over-all acceptability (F=2.346NS) and with highest level of acceptability in product formulation with fresh stevia leaf extract when grouped according to Stevia Baked Siopao in 50%, Stevia Basic Chiffon cake with 75%, and Pandesal with 50% fresh stevia leaf extract formulations. The data further shows there is a significant difference in color (F=4.218*), and highly significant difference in texture (F=5.095**). The marketability of bread and pastry products made from organic fresh stevia leaf extract as alternative sweetener using cost benefit analysis and business feasibility study shows very high projected customer acceptance. It is recommended that Fresh stevia leaves extract be used as alternative sweetener for bread and pastry products as it provides the awareness and inspiration to use healthy alternatives for consumers with diabetes to enjoy sweetened bread and pastry products without adverse consequences. |
| Ruelson S. Solidum Arnold C. Alguno (MSU-IIT) Rey Capangpangan (CSU) | Controlling the Surface Plasmon Absorption of Silver Nanoparticles via Green Synthesis Using Pennisetum purpureum Leaf Extract | SCOPUS Indexed Vol. 772/ pp. 73-77 July 2018 Key Engineering Materials ISSN: 1662-9795 eISSN: 1013-9826 | We report on the green synthesis of silver nanoparticles utilizing the P.purpureum leaf extract. Controlling the surface plasmon absorption of silver nanoparticles was achieved by regulating the amount of extract concentration and the molarity of silver nitrate solution. The surface plasmon absorption peak is found at around 430nm. The surface plasmon absorption peak have shifted to lower wavelength as the amount of extract is increased, while plasmon absorption peak shifts on a higher wavelength as the concentration of silver nitrate is increased before it stabilized at 430nm. This can be explained in terms of the available nucleation sites promoted by the plant extract as well as the available silver ions present in silver nitrate solution. |
| Marycris P. Egot Arnold C. Alguno (MSU-IIT) | Preparation and Characterization of Cellulose Acetate from Pineapple (Ananas comosus) Leaves | SCOPUS Indexed Vol. 772/ pp. 8-12 July 2018 Key Engineering Materials ISSN: 1662-9795 eISSN: 1013-9826 | Pineapple leaves was utilized for the fabrication of cellulose acetate. It underwent a series of process that includes alkaline treatment using sodium hydroxide aqueous solution, bleaching treatment using acetate buffer and aqueous sodium chlorite, and acetylation using acetic anhydride. The preparation of cellulose acetate was done in different acetylation times (8, 16, 24 and 32 hours). The cellulose acetate samples were then characterized using fourier transform infrared spectroscopy (FTIR) to elucidate the vibrational move, thermal gravimetric analysis (TGA) and differential thermal analysis (DTA) to investigate the thermal property of the material and scanning electron microscopy (SEM) to examine the surface morphology. FTIR result showed significant decrease in absorption intensity of the O-H stretch after the acetylation which indicates the substitution of hydroxyl group by acetyl group. On the other hand, the emergence of C=O stretch of the ester group and C-O stretch of acetyl group can be observed which indicates the formation of cellulose acetate. TGA and DTA also shows enhanced thermal stability of cellulose acetate prepared in 16 hrs acetylation period. Increasing the reaction time to 24 hrs and 32 hrs resulted to significant decrease in thermal stability. SEM images revealed the deterioration on the physical structure of cellulose after 24 hrs acetylation. |
| Kenneth M. Senados Reynaldo M. Vequizo (MSU-IIT) | Effects of Thermal Annealing on the Diode Properties and Space Charge Limited Conduction of the Physical Vapor- Deposited n-ZnS/p- Si (1000) heterojunctions | SCOPUS Indexed Vol.5 pp. 15174-15179 July 2018 Materials Today: Proceedings eISSN: 2214-7853 | The effects of thermal annealing on the device performance of the as-grown n-ZnS/p-Si(100) deposited via home-made physical vapor deposition machine was examined through the analysis of the I-V characteristics at room temperature under dark current measurements. Both as-grown and thermally annealed samples were found to exhibit a rectifying diode-like behavior and revealing that under reverse bias, avalanche of leakage current flow were observed at voltages greater than -15 V in the as-grown sample. An almost completely disappearing leakage current flow and a dramatic increase of forward current were exhibited after thermal annealing. Exposure of the samples to different wavelengths of light (200-800 nm) showed the thermally annealed sample to have a promising photodetection property in the UV (∼339 nm) and in some wavelengths in the visible range (500, 550 and 600 nm). The current transport of the as-grown and thermally annealed n-ZnS/p-Si(100) heterojunctions fabricated were dominantly space-charge limited conduction with possible presence of defect states in the surface and in the bulk of the material. |
| Yamilita M. Pabilona Helen M. Rara (MSU-IIT) | Connected Hop Domination in Graphs under some Binary Operations | SCOPUS Indexed Vol. 11 No. 5 pp. 1850075-1 - 1850075-11 August 2018 Asian-European Journal of Mathematics ISSN: 1793-5571 | Let G=(V(G),E(G))G=(V(G),E(G)) be a simple graph. A hop dominating set S⊆V(G)S⊆V(G) is called a connected hop dominating set of GG if the induced subgraph ⟨S⟩〈S〉 of SS is connected. The smallest cardinality of a connected hop dominating set of GG, denoted by γch(G)γch(G), is called the connected hop domination number of GG. In this paper, we characterize the connected hop dominating sets in the join, corona and lexicographic product of graphs and determine the corresponding connected hop domination number of these graphs. The study of these concepts is motivated with a social network application. |
| Antonio-Abdu Sami M. Magomnang** Amado L. Maglinao Jr., Sergio C. Capareda, Eliseo P. Villanueva | Evaluating the System Performance of a Pressure Swing Adsorption (PSA) Unit by Re,oving the Carbon Dioxide from Biogas | Clarivate Analytics Vol. 11, No. 17, pages 1-17 May 2018 Indian Journal of Science and Technology ISSN: 0974-6846 eISSN: 0974-5645 | This study aims to assess the performance of a Pressure Swing Adsorption (PSA) unit in removing the carbon dioxide from biogas by evaluating the breakthrough and adsorption capacity of the adsorption process as well as determining the effects of cyclic regeneration of the adsorbent. Methods: The PSA system was developed in order to establish the behavior of different gas separation experiments. It can be operated up to 10 bars pressure at ambient temperatures and gas flow rate from 0 to 15 L min-1. It is composed only of one main vessel made up of 316 stainless steel components. Use of physical adsorbent (Zeolite 13X) in a Pressure Swing Adsorption (PSA) system will consume the gaseous impurities such as CO2 . Product gas was collected into 1 L Tedlar bags and analyzed using SRI gas chromatograph with TCD and HID detector to validate the CO2 and CH4 composition. Findings: The results of the Pressure Swing Adsorption (PSA) experiments showed an average increase of 160% in the net heating value over that of a certified gas standard. The amount of methane was also significantly higher although the amount of the other gasses (i.e. nitrogen) remained comparatively the same. The number of other gases was significantly lower and no trace of carbon dioxide was observed in the PSA product gas indicating that carbon dioxide had been completely absorbed by the system. Application: This study helps to reduce CO2 emitted to the atmosphere from the anaerobic co-digestion of biogas to produce high energy content bio-methane fuel. |
| Christina Maglipong*** Ma. Jalou Jucoy | Cultivating Students' Problem-Solving Skills with Letter Writing Activity in Mathematics | Clarivate Analytics Vol. 30, No. 3, pages 393-396 June 2018 Science International (Lahore) ISSN: 1013-5316 | This study was undertaken to determine the effectiveness of letter writing in fostering the problem solving skills of students. The participants of this study were the Grade 8 students of Pedro “Oloy” N. Roa Sr. High School, Division of Cagayan de Oro City during the school year 2017-2018. Two (2) sections were used as the participants and exposed to Peer Tutoring-Math Pen Mate. One section was considered as the tutor, and the other section as the tutee. One group Pretest-Posttest design was utilized in this research. The instrument used was 15-item teacher made achievement test with a reliability coefficient of 0.79. Data gathered were analyzed using the statistical methods. The mean and the standard deviation were used to describe the participant’s achievement level in Grade 8 Mathematics and problem solving skills and the regression analysis was used to determine the effect of Peer Tutoring-Math Pen Mate on students’ problem solving skills. Result of the analysis revealed that Peer Tutoring-Math Pen Mate positively influenced students’ problem solving skills in mathematics. Based on the conclusion, the researcher recommended that mathematics teachers may utilize Peer Tutoring-Math Pen Mate in the teaching Mathematics and teach mathematics concepts focusing on developing student’s problem solving skills. Similar studies may be conducted on the effectiveness of Peer-Tutoring -Math Pen Mate in other content subjects in mathematics and show if integrating technology in the elementary level can also foster their problem solving skills. |
| Cordulo P. Ascaño*** Gina L. Lacang B. M. T. Estoque D. J. G. Saberon S. R. B. Sac | Morphological Leaf Characteristics of Selected Trees and its Adsorbent Capacity at Particulate Matter (PM10) in Cagayan de Oro City, Philippines | Clarivate Analytics Vol. 10, No. 3, pages 680-690 February 2018 Journal of Fundamental and Applied Sciences ISSN: 1112-9867 | The study aimed to give information about the use of trees in helping the environment particularly to the quality of air. Leaves of selected tree species planted along the busy streets in Cagayan de Oro City, Philippines were analyzed in terms of its surface area and its ability to adsorb PM10. Results revealed that G. arborea Roxb. exhibits the greatest leaf surface area based from the method UTHSCA software. Further, results of the study showed that among the four plant species sampled and analyzed along the road of Brgy. Kauswagan , the leaves of G. arborea Roxb., adsorbed the highest amount of PM10 while in Masterson Avenue, M. calabura Linn. showed the highest rate of adsorption capacity compared to other three species sampled and analyzed. Two- way ANOVA revealed that there are no significant differences between the two busiest streets and among the four species sampled and analyzed. |
| Rengel Cane E. Sia*** Mary Rose T. Sullano | Dye-Sensitized Solar Cell with Nut Grass (Cyperus rotundus) Leaves, Malabar Spinach (Basella alba) Buds and Mayana (Plectranthus scutellarioides) Leaves Extracts as Photosensitizers | Clarivate Analytics Vol.30, pages 239-242 March 2018 Science International Lahore ISSN: 1013-5316 | Plants, through photosynthesis, are capable of converting sunlight into a useable form of energy. This natural process is imitated to produce electrical energy through the use of Dye-Sensitized Solar Cell (DSSC). In this research, the DSSCs were fabricated using the natural dyes extracted from mayana leaves, malabar spinach buds, and nut grass as the photosensitizers. The highest recorded open-circuit voltage (VOC) in this study is 108.1 mV which is from the DSSC fabricated with malabar spinach methanol extract; the DSSC fabricated with malabar spinach petroleum ether extract has exhibited the highest maximum power (Pmax) with 0.733 mW and a short-circuit current (ISC) of 0.015 mA. Furthermore, the DSSC with nut grass acetone extract has a fill factor (FF) that ranges from 0.9885 to 0.9889. The effects of the different photosensitizers and extraction solvents were carried out. It was found out that Malabar spinach is a better sensitizer and the effect of the solvent is dependent on the type of plant sample used. |
| Ronnie L. Besagas*** Marie Cris D. Gapuz | Phytochemical Profiles and Antioxidant Activities of Leaf Extracts of Euphorbia Species | Clarivate Analytics Vol. 12, No. 4, Pages 59-65 April 2018 Journal of Biodiversity and Environmental Science (JBES) ISSN: 2220-6663 eISSN: 2222-3045 | The study was conducted to identify the phytochemical constituents and to quantify the total phenolics, total flavonoids and free radical scavenging activity of leaf extracts from three plants belonging to Euphorbiaceae family namely Euphorbia milii Des moul, Euphorbia trigona Mill and Euphorbia antiquorum L. Preliminary phytochemical screening was also carried out. The total phenolics of the extracts was determined spectrophotometric ally according to the Folin-Ciocalteu procedure, while the totalflavonoids was determined by aluminum chloride colorimetric assay. DPPH assay was used for determining the free radical scavenging activity of the plant samples. Qualitative screening of the phytochemical constituents showed that alkaloids, carbohydrates, flavonoids, saponin and tannins were present in the metabolic leaf extracts. The total flavonoids analysis showed that E. milii had the highest (20.3 mg quercetin per gram-dried material) followed by E. trigona (19.5 mg quercetin per gram-dried material) and E. antiquorum (19.1 mg quercetin per gram-dried material). The total phenolics of the three samples showed a little variation with 3.61, 1.63, and 1.69 mg GAE/g dried material for E. milii, E. trigona and E. antiquorum, respectively. The highest DPPH radical scavenging activity was detected in the methanolic leaf extracts of E. milii (74.37%), followed by E. trigona (60.10%) and E. antiquorum (59.42%). The three plants appeared to be good sources of antioxidants and promising source of medicines against various types of chronic and degenerative diseases caused by oxidative stress. |
| Laila S. Lomibao*** Finbar D. Laconde | Comparing Learner Generated Examples and Problem Posing in Enhancing Students' Conceptual Understanding in Mathematics | Clarivate Analytics Vol. 3, No. 1, pages 117-121 April 2018 Science International (Lahore) ISSN: 1013-5316 | This study compared the effectiveness of using learner generated examples and problem posing methods of teaching on enhancing the students’ conceptual understanding. The study employed quantitative quasi-experimental pretest – posttest non-equivalent control group research design. One of the three intact classes of Grade 7 students at Mindanao State University Wao Community High School during the third and fourth quarter of School Year 2016-2017 was randomly assigned as the control group and the other two intact classes as experimental groups. Prior to the experiment, the students’ conceptual understanding level were pretested. The control group was taught using the teacher-centered conventional method of teaching while the experimental group under learner generated examples was exposed to generating their own examples and the experimental group under problem posing was exposed to the in between problem posing. After the end of the fourth quarter lessons, posttest was administered to all groups. The data collected were analyzed using one-way ANCOVA. Results of the analysis revealed that the group exposed to learner generated examples and problem posing have better performance in conceptual understanding tests compared to those exposed to conventional method of teaching. |
| Lowell M. Gabunilas*** Evamae Adlao Kim Burns Jiff S. Chiu, Stephen Sam A. Sanchez | Utilizing Portable Virtual Reality in Teaching Chemistry | Clarivate Analytics Vol. 30, No. 2, pages 263-266 May 2018 Science International (Lahore) ISSN: 1013-5316 | Portable Virtual Reality (VR) is a relatively new technology and its potential as a modern instructional technology is being explored. In this study, fifty purposively selected participants were exposed to two different instructional approaches, traditional instruction using a modern multimedia presentation and a virtual reality assisted instruction. The study utilized the MEL Chemistry mobile application and portable VR headsets in conducting the virtual reality assisted instruction. Both groups underwent pretest and posttest and their scores analyzed using the appropriate statistical tools. The results have shown that the mean scores of the two groups of participants differ significantly with the scores of the group under virtual reality assisted instruction generally higher than those in the other group which suggests that utilizing virtual reality in the science classroom may help in teaching concepts in Chemistry. This may also serve as a modern strategy to enhance understanding of the concepts, and may as well offer the same advantages to other science subjects. |
| Angelo Mark P. Walag*** Archie G. Layaog Genevieve U. Garcia | Survey of Echinoderms in the Intertidal Zone of Goso-on and Vinapor, Carmen, Agusan del Norte, Philippines | Clarivate Analytics Vol.16, pages 31-38 March 2018 Environmental and Experimental Biology ISSN: 1691-8088 eISSN: 2255-9582 | The health status of marine ecosystems can be fundamentally determined by the abundance and diversity of marine echinoderms. Philippines as part of the Indo-Pacific region is very rich and diverse in echinoderm species. In this study, the echinoderms of the intertidal zone of Goso-on and Vinapor, Carmen, Agusan del Norte were collected and identified. A total of 18 species were identified; five sea stars (Asteroidea), six sea urchins (Echinoidea), and seven sea cucumbers (Holothuroidea). Protoreaster nodosus, Linckia laevigata, and Diadema setosum were found to be abundant based on visual observation. The asteroids and echinoids collected were not yet assessed by the IUCN while the seven sea cucumbers were either least concern or data deficient. It is good to note that Holothuria scabra, an endangered sea cucumber was present in one sampling site. The low diversity, compared to some related studies, might suggest that exploitation is predominant particularly for sea cucumbers, considered a local delicacy. It is recommended that further studies must be conducted to evaluate the population of Holothuria scabra and other marine organisms to further evaluate the health of this marine ecosystem. Efforts must also be increased to further protect and conserve the marine faunal diversity of the study area. |
| Lory Liza D. Bulay-og*** Reggie C. Gustilo | Power Management Control System for Computer Laboratories | SCOPUS Indexed Vol. 10, No. 1-8, pages 61-66 April 2018 Journal of Telecommunication Electronic and Computer Engineering eISSN: 2180-1843 | A power management control system is designed and proposed in this research that aims to monitor and control the power energy distribution on computer laboratories and classrooms based on the time of the day and the number of students inside the room. A cheap CPLD board is used as a control mechanism which minimizes power energy wastage that results in minimizing the electrical consumption of computer laboratories and classrooms. Two adjacent computer laboratories were used to as testbed in controlling the electrical power distribution on each room and the air-conditioning system based on the time of the day and the number of people inside the laboratories. Initial results show that a 7.70% reduction in the power consumption is achieved by the proposed system. Finally, a database system for class schedules is used to control power energy distribution on computer laboratories. |
| Janssen Blaise U. Jumau-as Oliva P. Canencia*** | Removal of Efficiency of Wastewater Treatment Plant of Selected Industries in Northern Mindanao, Philippines | Clarivate Analytics Vol. 13, No. 5, pages 230-239 November 2018 Journal of Biodiversity and Environmental Science (JBES) ISSN: 2220-6663 eISSN: 2222-3045 | |
| Lory Liza D. Bulay-og Reggie C. Custillo | Manufacture of Sound Absorbing Material from Recycled Rice Straws for Room Acoustics Improvement | SCOPUS Indexed Vol. 7, No. 4.16, pages 184-187 December 2018 International Journal of Engineering and Technology ISSN: 2227-524X | The Philippines, as an agricultural country, produces an excessive amount of rice straws. Burning of these huge amounts of rice straw is also discouraged due to the harmful effects in the environment such as air pollutions and the like. A good way of disposing the huge amount of rice straw is to recycle and use them as components of sound absorbing composite wood boards that may be used to improve the acoustic quality of the room. The composite wood board, with a size of 2’ by 3’ with a thickness of 1”, is produced with the use of wood chips and rice straw with urea formaldehyde resin as the binder using the same wood-based board manufacturing methods. The sound absorption coefficient was determined by using Sabine’s Equation by recording the reverberation time at various sound levels with use of a sound level meter. Through measurements, it is estimated that the absorption coefficient of the composite wood board ranges from 0.011 to 0.188 which is somewhat similar to that of the absorption coefficient of masonry walls |
| Ruel R. Cabahug Arguita, MB Dela Torre, S.M.E Valledor, M.S. Olivares, SM.D. | Factors Influencing the Delay of Road Construction Projects in Northern Mindanao | SCOPUS Indexed Volume 16, pp. 213-223 2018 Mindanao Journal of Science and Technology ISSN: 2244-0410/2449-3686 | Delayed construction project implementation is one of the most common problems that the government experiences all the time. With so many factors attributed in causing delayed infrastructure projects, there is a need to determine the most prevalent causes of the delay in project completion. This study evaluates the factors influencing the delay of road construction projects supervised by the Department of Public Works and Highways (DPWH) in Northern Mindanao. A total number of 139 completed road projects during year 2016 with 25 contractors were evaluated. Findings revealed that there were four factors that caused the delay of road construction projects; these are (1) road right of way, (2) change in quantity, (3) peace and order and (4) heavy rain. |
| Van Ryan Kristopher R. Galarpe Ma. Judith B. Felisilda Shaira Julienne C. Asequia Jhane Rose P. Encarguez | Sociodemographic of two municipalities towards coastal waters and solid waste management: The case of Macalajar Bay, Philippines | SCOPUS Indexed Volume 11 (3), pp. 182-202 September 2018 Environmental Asia ISSN: 1906-1714 (print); 2586-8861 (online) | Poor of solid waste management (SWM) and unstable coastal water (CW) quality has become a rising issue in the Philippines coastal zones like the case of Macajalar bay. Thus this study was carried evaluating sociodemographic indicators of the 180 residents in two municipalities (Opol and Jasaan) along the bay and how this influenced their level of knowledge-awareness-practices (KAP) towards CW and SWM. A modified survey questionnaire was employed in the using purposive sampling. Both quantitative (One-Way ANOVA and T-test for unequal variances at α-0.05) and qualitative analyses were utilized to extrapolate conclusions. Overall, coastal residents in Opol level of knowledge and practices were influenced by gender (A:p-0.0314; P:p-0.0155) and age (p-0.0404), whereas level of awareness was influenced by age (p-0.0160), length of residency (p-0.0029), and educational attainment (p-0.0089). Distinctively, Jasaan coastal residents' gender influenced the level of knowledge (p-0.0223) and practices (p-0.0172), whereas awareness was influenced by educational attainment (0.0383). Overall, sociodemographic response revealed higher level of knowledge and awareness towards preservation of CW. However, low levels of practices in both municipalities towards SWM were determined as evidenced by anthropogenic inputs to coastal water (dumping of solid waste, animal waste and domestic wastewater). In return this exerts pressure to Macajalar Bay. Present study can support policy enforcement in identifying opportunities for building positive connections of the social and biophysicochemical aspects in the bay. |
| Fernando T. Capilitan Jr. | Facebook group paga as a supplemental instructional approach in teaching college students in the Philippines | Clarivate Analytics Vol.31, No.2 pp. 221-224 2019 Science International (Lahore) ISSN: 1013-5316 | This is quasi-experimental research with pre-test and post-test. Two groups are involved in this study, the controlled and experimental group. Accordingly, the control group is assigned to the traditional instructional approach, whereas the experimental group is assigned to Facebook Group Page (FBGP) as a supplemental instructional approach. Data were gathered and interpreted by using mean, standard deviation and T-test. Although the two groups have an increased in the post-test after being exposed to the two distinct instructional approaches, the experimental group exposed to FBGP as a supplemental instructional approach performed best than the controlled group exposed to the traditional instructional approach. The FBGP as a supplemental instructional approach can be a great social networking site in improving the learning and students’ performance of the college students. |
| Maria Teresa M. Fajardo | Design Thinking Integration into a Research Course: A Case Study | Clarivate Analytics Vol.31 No.2 pp. 273-276 2019 Science International (Lahore) ISSN: 1013-5316 | Dengue is a social and health issue that continues to threaten communities. This study described students’ experience and insights in a research class taught using Design Thinking Methodology with dengue as problem focus. The study aimed at providing students with real problems to solve to allow them to apply the concepts learned in the classroom. Moreover, research outputs that answer a certain community need to emphasize the relevance of research to students. Design Thinking is a creative process that helps student design meaningful outputs to solve a problem in a community. Students working in groups go out to communities of choice to practice data gathering using survey instruments, conduct an interview, take pictures to capture a community's profile and do field observation. Most students realized that information should be validated in many ways. They also learned that people perceived government initiatives differently and recognized the importance of cooperation between residents, community health center staff and the local officials for a community program such as dengue awareness and prevention to succeed. |
| Art Walden A. Dejoras Rosie G. Tan | Comparing Problem Solving Ability of STEM and Non-STEM Entrants to Bachelor of Science in Mathematics Education Program | Clarivate Analytics Volume 31 (1) pp. 5-7 2019 Science International (Lahore) ISSN: 1013-5316 | The purpose of this study was to compare the problem-solving ability of Science, Technology, Engineering, and Mathematics (STEM) and non-STEM graduates enrolled in the Bachelor of Science in Mathematics Education (BS MathEd) program. The problem-solving ability of the participants was examined using the researchers-made Mathematics Problem Solving Ability Test with Cronbach alpha equal to 0.80. The findings indicated that there was no significant difference between the problem-solving ability of the students graduated from STEM (Mean = 2.07, SD = 0.47) and nonSTEM (Mean = 2.08, SD = 0.48) strands. The participants were found to be apprentice in problem-solving, able to obtain a partly correct solution but were not able to give the final correct answers. Thus, the researchers recommended that basic education program may be enhanced for the successful implementation of K to 12. Quality instructional materials may be provided to teachers and students, various teacher-training program may be conducted, and teachers’ qualifications may be considered in hiring. Moreover, BS Mathematics Education Program will not be exclusive for STEM strands graduates only, and mmathematics education faculty may provide remedial activities to improve the problem solving abilities of the pre-service mathematics teachers. |
| Janneth Q. Rondina Dennis B. Roble | Game-based Design Mathematics Activities and Students’ Learning Gains | Clarivate Analytics Volume 9, Issue 1 pp. 1-7 2019 The Turkish Online Journal of Design, Art, and Communication (TOJDAC) ISSN: 2146-5193 | The study was a quasi – experimental research conducted to investigate the effect of game-based design activities on students’ achievement scores in Algebra. The participants of the study were the two sections of the junior high school students at Misamis Oriental General Comprehensive High School ,Cagayan de Oro City, Philippines. One section was assigned as control group who was exposed to traditional approach with usual motivation and varied activities given to them such as board works , seat works, assignments and weekly quiz while the other one was experimental group which was exposed to game activities locally called as “A Line For Win” and “Slide A Picture”. |
| Marife V. Ubalde Michelle Calimbo | Predictor’s of Senior High School Students’ Procedural Knowledge in General Mathematics | Clarivate Analytics Volume 31 (1) B pp. 1-3 2019 Science International (Lahore) ISSN: 1013-5316 | This study was conducted to test how predictors relate the procedural knowledge of the Senior High School students in General Mathematics. These predictors included parent factors, individual factors, and instructional factors. The economic status and parent’s educational attainment were measured in the parent factors. Parent’s educational attainment may relate to the students’ procedural knowledge [1]. It is because students inquire help from their parents when they are at home for a specific assignment given by the teacher at school. When any other factors are disregarded, individual factors may give a big impact in the student’s performance at school when basically they do not have interest in a class specifically in mathematics. In the instructional factors, teachers’ competency and their instructional strategies and techniques were also investigated in this study. It is believed that one needs a good understanding of what students already know when they come into the classroom to design effective teaching environment. This study used descriptive type of research. The researchers chose the 30 grade-11 students of Bonbon National High School who were enrolled in General Mathematics during the 1st semester SY 2017-2018 as the respondents. The data were gathered using 15- item test from 16 items after the validation. The data was interpreted with the use of descriptive statistics to get the mean and standard deviation of the scores of the students’ procedural test and Pearson Correlation r to get the relationship. The result of the study was found that procedural knowledge of the students had no relationship with the parent factors, individual factors and instructional factors. |
| Mary Allein Antoenette C. Bug-os Virgencita B. Caro (CMU) | Academic Performance and Attitudes Towards General Physics of Grade 12 Students in a Process-Oriented Guided Inquiry Learning (POGIL) | Clarivate Analytics Volume 31 (1) B pp. 31-34 2019 Science International (Lahore) ISSN: 1013-5316 | The effects of Process-Oriented Guided Inquiry Learning (POGIL) on students' performance and attitudes in Grade 12 was examined. A quasi-experimental research design was used in the classes; one in POGIL and the other in non-POGIL class. The instruments were composed of an academic assessment and an attitude survey. Descriptive statistics, t-test, and analysis of covariance (ANCOVA) were used. Results revealed a significant difference in the academic performance of students in a POGIL from those in the non-POGIL class. The attitudes of students in POGIL was significantly higher than those in the non-POGIL class. |
| Maria Antonietta A. Bacabac Dennis R. Roble Garry Becoy | Teachers’ Belief on the Nature of Mathematics and its Implications to the Teaching and Learning of Mathematics | Clarivate Analytics Volume 31 (1) B pp. 123-126 2019 Science International (Lahore) ISSN: 1013-5316 | This study determined and compared the beliefs of mathematics teachers on the nature of mathematics among pre-service, senior high school and college mathematics teachers of the University of Science and Technology of Southern Philippines and discussed the implications of the nature of mathematics on their teaching and learning of mathematical concepts. This study involved 120 pre-service, seven (7) high school and 16 college mathematics teachers of the university. Data were gathered using survey questionnaire adopted from TEDS-M and analyzed using mean, standard deviation and analysis of variance (ANOVA). Results indicate that pre-service mathematics teachers showed a different perception as compared to the senior high school and college mathematics teachers which might be due to their maturity and experience in the field. The researchers then recommend that higher education institutions such as USTP need to prepare rigorously pre-service mathematics teachers to have a better beliefs on the nature of mathematics so they will be job ready when they graduate in their field of study. Further research might also be conducted on the learning and program effectiveness of mathematics and its impact on students’ learning and teachers’ performance and explore on the relationship of these different beliefs domains and other vital skills needed for mathematics teachers to excel in the profession. |
| Antonio-Abdu Sami M. Magomnang, and Neesan Joe V. Ipulan | Experimental Investigation on the Anaerobic Digestibility of Selected Vegetable Wastes for Biogas Production | Clarivate Analytics Volume 14, No. 2, Page 81-90, 2019 International Journal of Biosciences ISSN 2222-5234 (Online), 2222-6685 (Print) | Due to the inefficient transportation and inability to preserve those agricultural products can be rotten and wasted. As a solution, to determine the viability of the selected vegetable wastes co-digested with cow and pig manure as a feedstock to produced biogas. The experiment conducted in a batch-type anaerobic co-digestion process under the mesophilic condition for 30 days of digestion. Agricultural products such as cabbage, Chinese cabbage, and lettuce are mixed with cow and pig manure subject to different particle sizes of 2.00 mm, 4.00 mm and 6.35 mm. Based on the experiments, it was observed that the temperature of the digester over the 30 days digestion period was 28 – 31 oC. Moreover, the effect of smaller particle size shows the highest biogas volume production of 1733.70 ml than the other particle sizes. In addition, the carbon dioxide concentration recorded as 14 – 16%, as well as the hydrogen sulfide concentration of 6 – 18 ppm. Furthermore, the effect sodium hydroxide buffer solution improves the pH concentration of the substrate but it does not reach the required pH values for methane formation which is 7.0; and other vegetable wastes such as lettuce, cabbage resulted in the failure of biogas production due to ammonia inhibition that affects the methane production process. Thus, the biogas production from these wastes can be used as an energy source for cooking, heating, and power generation applications. |
| Antonio-Abdu Sami M. Magomnang Eliseo P. Villanueva (MSU-IIT) | Analysis of Biogas from agricultural biomass wastes fueled in an internal combustion engine unit | Clarivate Analytics Volume 12, No. 4, Page 1-12 2019 Indian Journal of Science and Technology ISSN 0974-5645 (Online), 0974-6846 (Print) | Performance and emissions of internal combustion (spark ignition) engine generator is investigated using the representative biogas composition from an anaerobic co-digestion mixture of various agricultural biomass wastes present in Mindanao, Philippines such as rice hull, coconut shell, cow manure as feedstock. Methods: The gases from the representative biogas composition are then fed to the 30kW engine generator and investigated the power generated, and its exhaust emissions. Findings: Results indicated that the variation of energy generated can be related to the electrical power produced from the engine unit to power the electrical appliances used at the same flow rate and pressure. At 1.4 kW electrical load and heating value of the purified biogas as 50 MJ kg-1, the consumption of biogas was observed to be the same. The engine also showed comparable efficiency ranging from 6.26% to 7.00% at 1.4 kW load. Further, the CO2 emission is observed to be 5.40% and amount of other emission pollutants are extremely few (nearly zero) using the representative biogas fuel in the engine. Thus, biogas fuel can be used directly as fuel in the spark ignition engine. Application: The biogas fuel can be used to other engines, but it requires some minor engine modifications in order to correct the compression ratio, spark ignition timing due to the slower flame speed of biogas fuel. |
| Antonio-Abdu Sami M. Magomnang, Aimee D. Cadungog | Design and Development of a Portable Hybrid Power Generation System for rural and urban areas applications | Clarivate Analytics Volume 12, No. 4, Page 1-11 2019 Indian Journal of Science and Technology ISSN 0974-5645 (Online), 0974-6846 (Print) | In far-flung rural and urban areas, one of the major problems typically encountered is the shortage or non-availability of electricity. Installation of electrical lines becomes expensive due to the far distance from the nearby electricity facility. This leads to the utilization of renewable energy such as biogas have been considered as an alternative source. Biogas produced naturally when an organic material such as animal manure, agricultural waste decomposes under anaerobic conditions. Objectives: As a solution, this study aims to develop hybrid power generating systems as a source of electricity from biogas, thermoelectric module and solar panel to supply the needs of the community through renewable energy. Methods: It uses digester, water jar for CO2 removal, PVC pipe used for manure inlet and H2 S removal with ten (10) iron sponges to produce high methane content biogas in order to sustain the co-generation of energy from the thermoelectric module and solar panel. Findings: The data generated in the developed portable hybrid generation system shows that a mixture of pig and cow manure with a mixture ratio of 1:3 is capable in the production of methane content higher than 50% and this was tested by cooking at various conditions. Further, co-generation of electricity using the solar panel and the thermoelectric generator produces a combined electrical power of 5 watt-hours in just 30 minutes, which is capable to charge digital devices and supply a 30 watts light bulb for 2 hrs. Application: This study suggests that energy from biogas can be utilized for cooking and as a source of electricity using the co-generation of energy from the thermoelectric generator and solar panels. |
| Remedios T. Tamang Gina C. Lacang Sansen A. Handang Jr. Florianne Consolacion | Solid Waste Characterization, Knowledge, Practices and Attitudes of Selected Barangay 22 Households, Cagayan de Oro City | Clarivate Analytics Volume 14, No. 4, pp. 89-106 2019 Journal of Biodiversity and Environmental Sciences ISSN: 2220-6663 (print); 2222-3045 (online) | The study is conducted generally to assess the solid waste characterization of brgy. 22, Cagayan de Oro City, to investigate the effectiveness of the mandate of the Ecological Solid Waste Management Program (RA 9003). Specifically, it sought to determine the (a) composition of the LGU’s overall waste generation, (b) weight and volume of wastes generated by the residents of brgy.22 per income level, per capita/day, (c) amount of waste that will be generated in the next ten (10) years and (d) assess the knowledge, practices and attitudes of selected households. The solid wastes characterization activities involved the courtesy call to the barangay officials, training of the Technical Working Group (TWG), household survey, a one-day pre-sampling workshop, seven –day solid wastes characterization, and data evaluation and analysis. Results of the study showed the overall waste generation of brgy. 22 is composed of 75.41% biodegradables, 24.03% non-biodegradables, and 0.56% special wastes. Non-biodegradables are mostly recyclables and residuals. The composition of wastes varies from plastics, cellophane, cans, papers, glass bottles, vegetables and fruit peelings, electronic waste and textile wastes. Result of the study also showed that low income level household has the highest solid waste generation followed by high income and middle income households. Based on the projections generated by the team, the projected waste will range from 242, 697kg in 2016 to 302, 585kg in 2026. There will be an increase of 24.68% of waste generation within 10 years for Barangay 22. The residents’ knowledge and attitude showed favorable response but their practices contradict to what the survey result indicates. |
| RJ Krista Raye Y. Leocadio Rexor Lester S. Jaramillo Alrico John Igot Jule Vincent Verdejo Gina C. Lacang | Particulate Matter (PM10) and Respiratory Health Assessment of the Selected Public Elementary Schools of Cagayan de Oro Ctiy | Clarivate Analytics Volume 14, No. 4, pp. 89-106 2019 Journal of Biodiversity and Environmental Sciences ISSN: 2220-6663 (print); 2222-3045 (online) | This study is aimed to assess the respiratory health condition of students in selected Elementary Schools in Cagayan de Oro City in consideration of their demographic profile and concentration levels of particulate matter of 10 microns size within the area. Random sampling technique and utilized cross-sectional descriptive type of research was used for the respiratory incidence. Determination of PM10 concentration levels was done using 24-hour continuous sampling method with PQ 100 PM 10 Sampler. Two elementary school institutions near traffic area were chosen serving as primary subject in the study. These are the City Central School and East City Central School. Comparatively, the results show that the East City Central School had greater percentage of respiratory incidence than the City Central School in terms of family income, family history, no. of hours of exposure, length of years and crowding. The results also showed that there is stronger influence of PM10 concentration at the East City Central School (49.54μg/m³) than that of the City Central School (43.59μg/m³). There exists a directly proportional relationship between the reported incidence and concentration of particulate matter, i.e. that the higher the concentration, the higher the reported respiratory incidence in all of the socio-demographic profile regardless of age and gender. The results shall serve as basis for both schools to come up with achievable strategies to minimize exposure of students against respiratory illnesses such as requiring students to wear personal protective equipment (ppe), growing buffer trees inside the school campus and to undertake activities that generates airborne dust at nighttime only. The local government unit shall also craft policies/ordinances such as rerouting vehicles to ease traffic condition so that emission of harmful air pollutants are easily dispersed to minimize detrimental health effects particularly to elementary students. |
| Jocelyn Barbosa Woo-Keun Seo (Samsung Medical Center, Korea) Jaewoo Kang (Sungkyunkwan University) | paraFaceTest: an ensemble of regression tree-based facial features extraction for efficient facial paralysis classification | Clarivate Analytics Volume 19, No. 30 2019 BMC Medical Imaging ISSN: 1471-2342 e-ISSN: 1471-2342 | Facial paralysis (FP) is a neuromotor dysfunction that losses voluntary muscles movement in one side of the human face. As the face is the basic means of social interactions and emotional expressions among humans, individuals afflicted can often be introverted and may develop psychological distress, which can be even more severe than the physical disability. This paper addresses the problem of objective facial paralysis evaluation. |
| Fatima F. Malaran Kissia A. Sumagaysay Julian Jean S. Nacasabog Mae Oljae P. Canencia*** | Species composition and diversity of periphytic diatoms along Umalag River, Philippines | Clarivate Analytics Vol. 14, No. 1 pp. 121-130 2019 Journal of Biodiversity and Environmental Sciences (JBES) ISSN: 2220-6663 (print); 2222-3045 (online) | Rivers are one of the providers of both economic and ecosystem services. However, it has been gradually degraded by general public. One of which is Umalag River, considered to be as one of the heavily stressed rivers due to different anthropogenic activities nearby. Consequently, not only locals are affected to these changes, but also the aquatic life as well. Hence, this study was conducted to assess the current water quality status of the river. It involved species composition, abundance and diversity of periphytic diatoms. Two sites were established, Site A described as a rocky substrate while Site B is a combination of rocky and muddy substrate. Simpson’s Diversity Index was employed to attain the species diversity status in the two sites. Based on the results, fifteen (15) genera were found in two (2) sites, eleven (11) of which were identified in Site A, while eight (8) were found in Site B. Navicula sp., Gomphonema sp., and Nitzschia sp. dominated in Site A, while Pinnularia sp., followed by Navicula sp., and Nitzschia sp. were some of the species found in Site B. It was evident that both sites were dominated by Navicula sp., and Nitzschia sp. which are known to be pollution tolerant species. Site B obtained the highest diversity index of 0.823. The existence of periphtyic diatoms can be associated to the type of substrate, habitat preferences as well as to the varying environmental factors which may possibly poses an important implication to the water quality and biological integrity. |
| Helen M. Rara (MSU-IIT) Yamilita M. Pabilona** Raicah C. Rakim (MSU-Marawi) | Connected perfect hop dominating sets under some binary operations | Clarivate Analytics Vol. 20 Issue 1 pp. 111-132 2019 Advances and Applications in Discrete Mathematics ISSN: 0974-1658 | Let be a simple graph. A set is a perfect hop dominating set of G if for every there is exactly one vertex such that The smallest cardinality of a perfect hop dominating set of G is called the perfect hop domination number of G, denoted by A perfect hop dominating set is called a connected perfect hop dominating set of G if the induced subgraph of S is connected. The smallest cardinality of a connected perfect hop dominating set in G is called the connected perfect hop domination number of G and is denoted by In this paper, we characterize the connected perfect hop dominating sets in the join, corona, lexicographic product and Cartesian product of graphs and determine their corresponding connected perfect hop domination number. |
| Dennis A. Apuan** Rene Juna R. Claveria (Ateneo de Manila) Teresita R. Perez (Ateneo de Manila / UP) Mary Jean B. Apuan (XU-CDO) Rubee Ellaine C. Perez (XU-CDO) | Pteris melanocaulon Feé is an As hyperaccumulator | SCOPUS Indexed Volume 236 pp. 1-5 2019 Chemosphere ISSN: 0045-6535 | Pteris melanocaulon is noted to thrive very well in selected Cu-Au mines in the Philippines such as the Carmen Cu mine in Cebu and the Manila Mining Cu-Au mine in Surigao. Soil and plant samples were collected from field surveys as well as potted experiments. The computed bioaccumulation factor (BF) and translocation factor (TF) values from the analyses of As contents of the soil and the belowground and above ground components of the plant, apparently were comparable to known As hyperaccumulators Pteris vittata and Pityrogramma calomelanos. It is inferred with probability that the factors that influence the bioavailability of As as well as the uptake mechanisms for P. melanocaulon would be similar to the 2 known As hyperaccumulators. Previous works have noted P. melanocaulon as a very good Cu accumulator with very high Cu values in the belowground components and this study further identified it to be an excellent As hyperaccumulator with high As values in the aboveground components. |
| Prosibeth G. Bacarrisas* Maria Teresa M. Fajardo Hazel G. Castro | The Effects of Interactive Science Notebook on Students Achievement Study Habits, Test Anxiety, and Attitudes towards Physics | SCOPUS Indexed Volume 16, Issue 1 pp. 62-76 2019 Journal of Turkish Science Education ISSN: 1304-6020 | This study aimed to examine the impacts of using Interactive Science Notebook on students’ achievement, study habits, test anxiety levels, and attitudes towards physics. An interactive notebooking strategy was introduced to student teachers, who were enrolled to a local university. The participants comprised of 37 sophomore student teachers taking General Physics 2 (Electricity & Magnetism). To collect data, their profiles were gathered using survey questionnaires that measure students’ learning style, study habit, test anxiety, and attitude towards physics as well as a physics achievement test. Through a pre-experimental research design, descriptive statistics and appropriate statistical analyses were conducted. The results indicated that the use of Interactive Science Notebook significantly improved student teachers’ physics achievement levels. It was also found out that their study habits, test anxiety levels and attitudes towards physics significantly predicted their physics achievement levels. |
| Jhane Rose P. Encarguez Ma. Judith B. Felisilda Shaira Julienne C. Asequia Van Ryan Kristopher R. Galarpe*** | Distribution pattern and mutlivariate analyses for anthropogenic apportionment of selected coastal water in Macalajar Bay, Philippines | Clarivate Analytics Volume 191:532 pp. 1-22 2019 Environmental Monitoring Assessment ISSN: 0167-6369 (Print) 1573-2959 (Online) | Macajalar Bay in the southern Philippines has become an attractive thoroughfare with recent developments, rendering anthropogenic input to the coastal waters. Expediting coastal resource management strategies necessitates the present study on coastal water characteristics. This was aided with distribution pattern and multivariate analyses for apportioning possible anthropogenic inputs. A total of 15 biophysicochemical characteristics were studied covering two municipalities (Opol and Jasaan) with six subcoastal communities in 2017. Data were all processed for Q test to eliminate outliers before distribution analyses using univariate (descriptive), inferential (t test, one-way ANOVA, Pearson correlation), and multivariate statistics (hierarchal cluster analysis (HCA) and principal component analysis (PCA)). Overall, higher concentrations were determined in the ecotourism site (Opol) than in the industrial site (Jasaan) as sampling months progressed except for oil and grease. Results for total coliform, fecal coliform, heterotrophic plate count (HPC), total suspended solids (TSS), chemical oxygen demand (COD), and oil and grease regardless of spatial-temporal variations exceeded the standards. Distribution pattern revealed variations selectively for pH, temperature, dissolved oxygen (DO), and oil and grease, indicating site-specific distribution. HCA and PCA results corroborated correlation matrices showing elevated concentrations in an ecotourism site (Opol) apportioned anthropogenic input mainly due to rural development and ecotourism. Likewise, in the industrial site (Jasaan), HCA and PCA results reflected possible anthropogenic input from rural development and industries. Overall, anthropogenic apportionment in the bay was influenced by rural development, ecotourism, and industries. |
| Minsarib L. Kalnasa Sheena Mae O. Lantaca Lynnel C. Boter Geran John T. Flores Van Ryan Kristopher R. Galarpe*** | Occurrence of surface sand microplastic and litter in Macalajar Bay, Philippines | Clarivate Analytics Volume 149, 110521 pp. 1-6 2019 Marine Pollution Bulletin ISSN: 0025-326X | Microplastics have become an emerging structural pollutant to the marine environment particularly in the Philippines owing to high plastic load. This study was carried out to determine the occurrence of microplastic and coastal litter in Macajalar Bay, Philippines. Three coastal areas were studied namely, Opol, El Salvador City, and Alubijid with three substations in each area. A total of nine surface sand sediment samples were collected for microplastic analysis. Microplastics were extracted through the flotation method and preliminary identification was carried out using a stereomicroscope. The beach litters were obtained through transect walk in a 5 m x 10 m quadrant per area. Overall, studied microplastics were mainly angular and filament type with colors varying from blue, black, light orange, pale white, and translucent. Litter analysis showed the dominance of plastics across the study area with a mean cumulative coastal clean index (CCI) of 2.40 (clean). |
| Arnelo D. Naelga Lad H. Labrada | Automotive Lighting System Simulator | SCOPUS Indexed Volume 8, Issue 6S3 pp. 513-526 2019 International Journal of Innovative Technology and Exploring Engineering ISSN: 2278-3075 | This study aims to determined automotive lighting system simulator and its effect in improving students performance. The study looked into the following questions: What is the respondents input variable in terms of; gender, year level, scholarship status, family income, purpose of taking the course, number of units, attendance and participation. What is the pre-test written and practical score in terms of; park/tail, head, turn signal, brake, reverse, horn, hazard, dome light, door light. Is there any significant difference in respondents pre-test and post-test written and practical scores and To what extent does the input and process variable explains output variable This study made use of the descriptive research design. Descriptive statistics; means, percentages and standard deviations and inferential statistics one tailed t-test and multiple linear regression analysis were used. The study was conducted to 44 students taking AET 161 (Advanced Undercarriage Services) at Mindanao State University – Iligan Institute of Technology. The result showed all the respondents are third year students. The majority are males with no scholarship status. Majority of the respondents’ fathers’ and mother’s monthly income is from none to 5,000 and below. The data further showed that majority of the respondents’ current number of units is 21-24 and that through substantial number of student took the course because of No available slots, but majority took the course because of job demand, work abroad, and to sustain and provide for family. Majority attendance is from 7 to 8 and their participation during the study in from 19-30, classified as good to very good. Majority of respondents’ pre-test written score is fair and pre-test practical score is poor. Majority of respondents’ post-test written score is very good post-test practical score is very good, as evaluated by 3 experts. The result indicates that the post-test written is significant higher than the pre-test written (T=20.00**) and posttest practical is significant higher than the pre-test practical (T=20.73**). Respondent written post-test is not influenced or affected by the respondents gender, father's income, mother's income, current number of units, purpose of taking course, total attendance, pre-test written and pre-test practical. However, individually participation have a significant effect in respondents’ post-test written. There is significant and highly significant effect in individual variables to the respondents’ posttest practical exam. Specifically, on current number of units, purpose of taking course and attendance to practical post-test of students and participation in written post-test. Thus, it is therefore recommended that; the administration may strengthen research innovation that enhances students’ performance. Teachers requested to innovate or use the automotive lighting system to address competency gap of the automotive student in automotive lighting system and providing relevant laboratory tools that replicate the ideal set up of automotive lighting system troubles, operations and circuits. The students are highly encouraged to maximize and appreciate actual visualization of the electrical lighting system set up and actual wire troubles, in order to familiarize the operation and behavior of its components |
| Sofia C. Naelga Roger Joey P. Ihong | Physico-chemical Properties, Microbial Analysis and Acceptability of Fern | Clarivate Analytics Volume 10, Issue 1 pp. 704-711 2019 Bioscience Biotechnology Research Communication ISSN: 0974-6455 | The vegetable fern plant (Diplazium esculentum (Retz.) Sw.), locally known as “pako” in Besigan, Cagayan de Oro City, is a good source of nutrients which, an ample of serving of this vegetable fern in a meal, would help alleviate nutrient-related problems. Fiddlehead fern is often listed among the several kinds of edible ferns mostly found in the different places in the Philippines and other tropical countries in Asia, such as Indonesia, India, China, Japan, Thailand and even in North America, Hawaii and some parts of Australia. This vegetable fern which is usually found in gravel bars, bank of streams, rivers, freshwater swamps or in the wilds, is often sold in bunch in local markets at a cheaper price and can be eaten cooked or raw. The purpose of this study was to use fiddlehead fern as an alternative ingredient for basil in making pesto and to enhance its health benefits. The fern pesto product was tested by F.A.S.T. Laboratories, for nutrient content, physicochemical properties and microbial analyses. For sensory evaluation, the 9-point Hedonic Scale was used. This study found that fern pesto is a good source of nutrients such as crude protein, % (9.65), calcium, % (0.12), iron, mg/kg (15.51) and potassium, % (0.24). The result indicated that the nutrient of fern pesto is comparable to basic pesto made and basil pesto in the literature. The results of the physico-chemical analyses showed a pH level of 5.47 and moisture content of 30.11. This means that the fern pesto is slightly acidic and had a high moisture content that required storing it at lower temperature to delay any microbial and chemical reactions. The present study also showed that the average results of microbial count for total plate count, cfu/g (1.347 X 104 ) and yeast and mold count, cfu/g (300) are both lower than the standard TPC (106) and YMC (104 ) for sauces. The fern pesto has negative result in Salmonella which is an indication that hygienic preparation and proper handling of the product were observed. For sensory evaluation, it was rated “Like moderately” (6.5-7.4) in all parameters tested. The result implies that the panellists highly preferred fern pesto over basic pesto. |
| Angelo Mark P. Walag* Romeo M. Del Rosario Oliva P. Canencia | Zoochemical Composition of Selected Sea Stars Collected from the Coastal Waters of Carmen, Agusan Del Norte | Clarivate Analytics Volume 8 (2) pp. 53-62 2019 Asian Journal of Biological and Life Science ISSN: 2278-5957 | The marine ecosystem is home to 34 of 36 phyla in the animal kingdom. It is for this reason that substantial amount of marine-derived natural products with potential medicinal and therapeutic applications have been described, isolated and characterized. Majority of the invertebrate phyla have been accounted for, but few studies have been made on Philippine invertebrates. The goal of this research is to determine the zoochemical composition selected sea stars collected from the coastal waters of Carmen, Agusan del Norte, Philippines. Standard methods were employed to determine the zoochemical composition of Linckia laevigata, Protoreaster nodosus and Acanthaster planci ground samples. All sea stars showed presence of alkaloids, flavonoids, saponins, triterpenoids and cardiac glycosides while no presence of coumarins and phenolics and tannins were detected. The presence of these zoochemicals in sea stars was confirmed by the available literature although differences were noted particularly on the absence of phenolics in this study. Based on this study, the selected stars appeared to be rich in saponins and steroids which are known to possess biological activity that could be used to develop drugs. The other metabolites can also be exploited in the developing marine-derived drugs. Further analyses can be done especially in isolating these compounds and structurally elucidating them. Moreover, the isolated metabolites can also be tested individually for its biological activities. It is also suggested that more studies be conducted on these organisms to further understand their biochemistry which can be utilized before they become endangered or more so, extinct. |
| Rosie G. Tan* | Profiling the Competence of Alternative Learning System (ALS) Teacher to Teach a Particular Math Topics in High School | Clarivate Analytics Volume 3 (3), pp. 499-502 2019 Science International (Lahore) ISSN: 1013-5316 | The teacher is the center of the educative process. Their profile affects their teaching effectiveness. Profiling their competence could help administrators and training providers in making appropriate decisions and actions. The purpose of this paper is to provide a profile of the ALS teachers, particularly, their educational attainment, teaching experience, and mastery of a particular math topic. The survey was conducted personally by the researcher using a survey questionnaire. Out of 52 ALS teachers, 34 voluntarily participated in this study. The data gathered was described and summarized using relative proportions, mean, and standard deviation. Results revealed that none of the participants specialized mathematics or even mathematics-related field, and they are new in the service. Their score on the test on a particular math topic is low, they got only less than half of the item correctly. This implies that the competence of ALS teachers in this division to teach mathematics in the high school level is not enough. Thus, the researcher recommends that ALS teachers may be given a series of training to enhance their mastery of the mathematics content. Also, in hiring ALS teachers, the field of specialization must be considered. Related studies with a large number of participants must be conducted to increase the generalizability of these findings. |
| Rosie G. Tan Earn Larren Z. Valmoria | Sequences of Mathematical Tasks for Intensifying Procedural Fluency in Integer Operation | Clarivate Analytics Volume 31 (3), pp. 452-454 May 2019 Science International (Lahore) ISSN: 1013-5316 | This study explored the effects of sequencing students’ engagement in mathematical tasks on their level of procedural fluency. The teacher randomly selected two intact classes from a stream of Grade 7 classes. These two classes were randomly assigned as the experimental group and the control group. The teacher employed the conceptual-toprocedural approach in teaching the experimental group while the procedural-to-conceptual approach in teaching the control group. Quantitative quasi-experimental pretest-posttest non-equivalent control group design was employed. Quantitative method was used to examine the students’ level of procedural fluency on integer operation. Results showed that conceptualto-procedural instruction influenced the Grade 7 students’ procedural fluency on integer operation more than the proceduralto-conceptual instruction. Thus, the researchers recommend that mathematics teachers may practice the conceptual-toprocedural sequence in teaching mathematics to strengthen the foundation of mathematical concepts, and in turn, develop procedural fluency. Future studies on the effectiveness of these sequences of mathematical tasks are needed to support these research findings. |
| Jennifer O. Parcutilo Merly V. Pandan | Enhancing Mathematics Achievement Scores and Teamwork Skills through Student Teams-Achievement Divisions (STAD) | Clarivate Analytics Volume 31 (5), pp. 765-770 2019 Science International (Lahore) ISSN: 1013-5316 | Nowadays, more employers seek graduates who are not only good in academics but give more preference for essential skills, especially teamwork skills. Studies showed that emphasizing teamwork and cooperation can improve the way students learn mathematics. This study compared the effects of the Student Teams-Achievement Divisions (STAD) cooperative learning strategy and the Non-STAD cooperative learning strategy on the students' teamwork skills and mathematics achievement in high school. The study made use of two randomly chosen G10 sections under the K-12 EBEP curriculum who were given pretest and posttest using two validated instruments, the teacher-made test on grade 10 mathematics and the modified teamwork skills assessment tool adapted from the CATME-B Version. The study found that the students under the STAD cooperative learning strategy had significant gains in mathematics achievement and teamwork skills and showed consistent significant improvements in the six teamwork skills assessments over the span of eight weeks as compared to the Non-STAD group. Students exposed in the STAD cooperative learning strategy were better in giving a high- quality fair share of the team's work, kept commitments and worked cohesively with teammates, trusted each other and showed appropriate progress. Each member contributed to the team's excellent work and exhibited excellent knowledge, skills, and abilities in doing the team's work and in performing assigned roles. In STAD, team scores were based on improvement scores, with recognition and rewards to the winning teams and improving students which results to higher achievement in mathematics and enhanced teamwork skills among students. |
| Consorcio S. Namoco Jr. Mark Godfrey D. Torres | Audit Trail Generator and Pattern Analyzer for Secure Oline Transactions in Academic Institutions | Clarivate Analytics Volume 12 (00) pp. 3-12 2019 Indian Journal of Science and Technology ISSN 0974-5645 (Online), 0974-6846 (Print) | Objectives: This study focused on creating a three (3) point Audit Trail Generator (ATG) to be integrated into the system, and a Trail Pattern Analyzer (TPA) that uses the Teiresias algorithm as a data mining technique for analyzing audit trails for secure online transactions in academic institutions. Methods/findings: The audit trail can be used to enhance the security through monitoring the pattern of user activities within the bounds of the system. It was shown that the mechanism provided an in-depth monitoring of user activities without degrading the performance regarding the proceedings in doing the secure online transactions. Application: The overall compliance status of the study resulted to be higher than the required standards. The design is therefore considered usable and secured. |
| Hearty M. Nuenay-Maglanque Ferdinand P. Jamil | Cost Effective Domination in the Join, Corona and Compostion of Graphs | Clarivate Analytics Volume 12, No. 3 pp. 978-998 2019 European Journal of Pure and Applied Mathematics ISSN: 1307-5543 | Let $G$ be a connected graph. A cost effective dominating set in a graph $G$ is any set $S$ of vertices in $G$ satisfying the condition that each vertex in $S$ is adjacent to at least as many vertices outside $S$ as inside $S$ and every vertex outside $S$ is adjacent to at least one vertex in $S$. The minimum cardinality of a cost effective dominating set is the cost effective domination number of $G$. The maximum cardinality of a cost effective dominating set is the upper cost effective domination number of $G$. A cost effective dominating set is said to be minimal if it does not contain a proper subset which is itself a cost effective dominating in $G$. The maximum cardinality of a minimal cost effective dominating set in a graph $G$ is the minimal cost effective domination number of $G$.In this paper, we characterized the cost effective dominating sets in the join, corona and composition of graphs. As direct consequences, we the bounds or the exact cost effective domination numbers, minimal cost effective domination numbers and upper cost effective domination numbers of these graphs were obtained. |
| Meriam M. Bergado** Cenie V. Malabanan | A Prototype Implementation of an Emergency Communication Device and Locator for Small-Scale Fishing Boats | SCOPUS Indexed Volume 8, No. 4 pp. 1234-1240 2019 International Journal of Advanced Trends in Computer Science and Engineering ISSN: 2278-3091 | This paper presents the results of the investigation made for the prototype implementation of an emergency communication system and locator for small-scale fishing boats using a license-free band and long-range marine wireless network. The prototype has an emergency button that allowed fishermen-participants to send a distress signal to the base station and, in turn, a light emitting diode (LED) that can notify the warning signal that was transmitted from the base station. The network module periodically transmitted the boats’ coordinates to the base station and these position reports received are displayed in real-time through a mapping system. Through these, the base station can geolocate the fishing paths and the last known location of the fishing boats. This study was able to implement a prototype for a long-range wireless network between two boats, a floating buoy, and the base station. The transmission of distress signals from the boats to the base station and warning signals that were broadcast from the base station was successful up to 5.4 kilometers. This research has proven the potential of Sub-1 GHz through wireless transmission in an open sea communication, which can help small-scale fishermen to be easily located when emergency situations arise and ease the burden in search and rescue operations. |
| Penelyn L. Acal** Helen M. Rara | The Strong Connected Metric Dimension in the Joint and Corona of Graphs | Clarivate Analytics Volume 21, Number 1 pp. 91-101 2019 Advances and Applications in Discrete Mathematics ISSN: 0974-1658 | In this paper, we characterize the strong connected resolving sets in the join and corona of graphs. We also determine the strong connected resolving numbers of these graphs. |
| Sofia C. Naelga Jay C. Mila Manilyn C. Rayon | The Employability and Opportunities of the Graduates of Opol National Secondary Technical School Senior High School Modeling Program | Clarivate Analytics Volume 6 pp. 1-18 2019 Revista Dilemas Contemporáneos: Educación, Política y Valores ISSN: 2007-7890 | The objective of this research work was to evaluate the employability and Opol National Secondary Technical School (ONSTS) graduates opportunities of the Program Modeling High School. The descriptive research method was used in the conducting this study. Research findings indicated that ONSTS graduates possess the skills and competencies necessary to succeed in this competitive world. Equally, vital is that ONSTS should expand its academic relationships to different industries so that students graduates can get a better job and good job opportunities. |
| Ronnie L. Besagas Jonalyn L. Olarte | Heavy Metal Concentrations in Roadside Soil of Cagayan de Oro City, Philippines | Clarivate Analytics Volume 14, No. 3 pp. 190-196 2019 International Journal of Biosciences ISSN 2222-5234 (Online), 2222-6685 (Print) | An investigation was conducted to study the heavy metal concentration and other physico-chemical parameters of the roadside soil in the 2nd Congressional District of Cagayan de Oro City. The samples were collected from seven different locations and analyzed for pH, conductivity, organic matter, and the heavy metals—Cd, Cu, and Pb. The pH of the soil is in the ranged between 7.85 to 8.54 while the conductivity and organic matter of the soil varies between locations with the highest value of 259 μS/cm and 5.54%, respectively. The average concentrations of metals in soils were 0.21 mg/kg Cd (ranged between 0.07 to 0.51 mg/kg), 87.7 mg/kg Cu (ranged between 61.0 to 169.7 mg/kg), and 97.6 mg/kg Pb (ranged between 43.2 To 264.0 mg/kg). Overall, the concentrations of heavy metals can be ordered as Pb > Cu > Cd. A higher concentration of heavy metals was observed in the soils collected from areas where there are frequent traffic congestions happen due to high traffic volume. The concentrations of heavy metals in roadside soils of District 2, Cagayan de Oro City were considered medium or low in comparison with those in other cities around the world. |
| Antonio-Abdu Sami M. Magomnang** Faradiban O. Acosta | Experimental Investigation on the Simultaneous Upgrading of Biogas using Iron Sponge and Zeolite 13x Fixed Bed Columns | Clarivate Analytics International Journal of Biosciences Volume 16, No. 4 pp. 152-158 April 2020 ISSN: 2222-6655 | Biogas technology is continuously being studied to enhance its quality and expand its power generation application. To increase its heating value and eliminate its corrosive effect on machine components, a biogas upgrading system was designed and developed. This study evaluates the developed upgrading system by its capability to increase the methane content through hydrogen sulfide and carbon dioxide reduction using the iron sponge and Zeolite 13x, respectively as adsorbent columns. The results show that by varying the volume flow rate of the biogas into the system could lengthen the contact time between the biogas and adsorbent and eventually increase the CH4 content from the biogas. Furthermore, the highest methane content achieved at 63.1 % from a raw biogas concentration of 32% CH4. Meanwhile, with the breakthrough adsorption capacity of zeolite 13x was 224 mg CO2/g. This had reduced the CO2 by 41.76% from its raw biogas composition. The maximum superior and inferior calorific values produced were 22.53 MJ/m³ and 20.29 MJ/m³ respectively. The simplified design of a simultaneous upgrading system intends to increase the methane content of the biogas and further extend its application as an alternative fuel for power generation applications. |
| Romano A. Pimentel* Alenogines L. San Diego Camilo Jose S. Salvaña III | Design and Development of Industrial Control Panel as Pedagogical Tool in Mechatronics Technology | Clarivate Analytics Science International (Lahore) Volume 32 (1) pp. 177-180 ISSN 0974-5645 (Online), 0974-6846 (Print) | This paper discusses the design and development of a control system to utilize the old mechatronics training equipment located at the College of Technology building University of Science and Technology of Southern Philippines. Since the mechatronics trainer had been bought for quite some time, the computer system used to operate the equipment is already obsolete. Thus, this study designed a system upgrade to operate the unutilized laboratory equipment via hardware switching at the control panel and via the software interface system through an easy-port device controlled by a computer. The performance of the new control system captures the keen interest of the survey participants through their affirmation and a pproval relative to the test instrument to validate the functionality and acceptability of the device. |
| Al-monte Vince M. Calo* Jocelyn B. Barbosa Amparo V. Dinagsao | GrabTutor: A Web and Mobile Application for Tutor Appointment System with GPS Security Feature | Clarivate Analytics Indian Journal of Science and Technology Volume 13 (19) pp. 1955-1964 June 2020 ISSN: 1013-5316 | Academic tutoring is sought to aid students academically, keep them in school, and eventually earn a degree aside from the learning they get from a typical classroom setting. Academic institutions somehow start programs for peer tutorial sessions among students, but matching of tutees with tutors takes time especially for complex and complicated topics. It even brings a security concern about where students are conducting tutorials. Hence, this study aims to design a tutor appointment system with location tracking feature to give students a more efficient and safer tutorial experience. Methods: GrabTutor is composed of a mobile and web application that communicates through a cloud server. The tutees find tutors through the mobile application. The system generates a unique barcode for each tutorial appointment. A barcode scanner is embedded in the mobile application accessible to the tutor. Once the tutor scans, the system will trigger the timer and sends GPS coordinates to the server to track the location. The location will be represented by a marker on the map of the moderator's web application. Findings: Based on the results of the usability tests, the system easily matched tutees to the right tutors. The GPS monitoring system was proven to be a helpful tool to ease the risk of students having to go somewhere else to meet up with a tutor. Novelty/Applications: The proposed system enables quick and efficient matching of tutors to tutees and integrates GPS information of students within the campus during the conduct of the tutorial to track their whereabouts for a more secure tutorial experience. |
| Dennis B. Roble* Marife V. Ubalde Elmer C. Castillano | The Good, Bad and Ugly of Technology Integration in Mathematics from the Lens of Public School Mathematics Teachers | Clarivate Analytics Science Internationa (Lahore) Volume 32 (5) pp. 525-528 October-September 2020 ISSN: 1013-5316 | Despite various researchers often call for widespread implementation of technology integration in education, more specifically in mathematics classrooms, in reality, mathematics teacher's encountered different and similar issues and struggles which prevented them to successfully obtain the benefits of integrating technology in mathematics teaching and learning. This study aimed at determining public school mathematics teachers in the Division of Cagayan de Oro City's actual teaching experiences, reflections, struggles, and the challenges they have met before, during, and after they implement and/or use technology in their respective classes. Data are collected and recorded using personal in-depth interviews and focus group discussions from these mathematics teachers. Based on the in-depth interview and FGD conducted, the mathematics teachers acknowledged the fact that integrating technology in mathematics allows students to be actively engaged in learning and deepen their mathematical understanding. However, various obstacles were encountered before and during implementation such as lack of school computer resources and internet connectivity/access and even some teachers do not know how to use and optimize the use of technological tools in the classroom. They also noted various disadvantages of integrating technology such as it is detrimental to health and teachers not utilizing it judiciously. Hence, it is recommended that training of teachers on how to use these different technological tools in mathematics across all levels may be considered by DepEd to capacitate mathematics teachers to use and integrate technology in their classes proficiently. |
| Laila S. Lomibao* Dennis B. Roble Maria Antonietta A. Bacabac | Achieving Equilibrium between Standards and Practice: A Closer Look on Mathematics Teachers' Pedagogy and Personal Professional Attribbutes | Clarivate Analytics Science Internationa (Lahore) Volume 32 (5) pp. 529-531 October-September 2020 ISSN: 1013-5316 | Both international and local mathematics teacher standards served as a blueprint of how teachers should perform in school and stakeholders would have a clear and shared understanding of what is expected in schools. Professionalteacher standards in mathematics such as the Southeast Asian Regional Standards for Mathematics Teacher (SEARS-MT) isconsidered to be a vehicle for quality teaching and positive learning outcomes. However, it is still a question whether therewas an equilibrium between this standard and practice of the mathematics teachers. This study examined the level of secondary public school mathematics teachers’ pedagogy and personal attributes as professional indicators of the SEARS- MT and its implications to the teaching and learning of mathematics. Data were collected from 147 secondary mathematicsteachers in the Department of Education (DepEd), Division of Cagayan de Oro City through survey questionnaires andanalyzed using descriptive statistics such as mean and standard deviation. Results reveal that the mathematics teacher-respondents performed very satisfactory in terms of professional teaching and learning process as well as their personalattributes. However, it is recommended that mathematics teachers may be further developed professionally through theestablishment of professional learning communities where they can be mentored and DepEd may continue to conduct regular professional development programs on content and pedagogy to foster quality performance. |
| Angelo Mark P. Walag* Maria Teresa Fajardo Prosiebeth Bacarrisas Faith Guimary | Are Our Science Teachers Scientifically Literate? An Investigation of Science Teacher's Level of Scientific Literacy in Cagayan de Oro City, Philppines | Clarivate Analytics Science Internationa (Lahore) Volume 32 (2) pp. 179-182 March-April 2020 ISSN: 1013-5316 | The main goal of science education is to produce a scientifically literate community. Science teachers are the key to achieving scientifically literate citizenry because of their essential role in education at all levels. It is for this reason that science teachers themselves must be scientifically literate to be able to prepare students adequately. This study examined the levels of scientific literacy (SL) of randomly selected public elementary and high school science teachers of Cagayan de Oro City (n=92 and n=88 respectively), using a descriptive survey. A standardized test was utilized to determine the scientific literacy (SL) in areas like Nature of Science (NOS), Science, Technology, and Society (STS), Physical Science (PS), Earth and Space Science (ESS), Life Science (LS), and Health Science (HS). Analysis of results indicated that the respondents possess a satisfactory SL, with the highest score in Earth and Space Science (ESS) component while lowest in Physical Sciences (PS). Differences in SL levels were also noted between elementary and high school science teachers. It is recommended that in the design of both science teacher education curriculum and professional development training for in-service teachers, least mastered concepts in science must be given attention. Similarly, ample opportunities should also be given to preservice and in-service teachers to develop high levels of scientific literacy. |
| Maria Teresa M. Fajardo* Angelo Mark P. Walag Faith M. Guimary Prosibeth G. Bacarrisas | Science Teachers Self-Efficacy in Teaching Different K to 12 Science Subjects: The Case of Cagayan de Oro City, Philippines | Clarivate Analytics Science International (Lahore) Volume 32 (5), pp. 587-592 October 2020 ISSN: 1013-5316 | The Philippines has shifted to a new K to 12 Curriculum in an attempt to address the pressing concerns raised on the quality of education in the country. The change in the curriculum presented a mismatch problem between in-service teachers. Hence, this research aimed at examining self-efficacy beliefs and subject-specific self-science teachers. Both groups had satisfactory levels of PSTE and STEO. Primary teachers were most confident in teaching chemistry, biology for high school teachers and both groups were least confident in teaching physics. These results were believed to be due to the limited experience of the teachers. |
| Nivea Louwah D. Sermona* Ismael N. Talili Montano Salvador Ronela Enguito | Implementation of Extension Services in Select State Universities and Colleges in the Philippines | Clarivate Analytics Science International (Lahore) Volume 32 (6), pp. 609-614 November - December 2020 ISSN: 1013-5316 | This study was conducted to explore the nature of extension services in select state universities and colleges (SUCs) in the Philippines. Considered as the “third mission” of higher education institutions, extension service allows the institution and its faculty members to share their respective expertise to the community aside from the students who are enrolled in the programs. The study determined the nature of extension programs, projects and activities conducted by select state universities and colleges and the problems encountered in the implementation of extension services. A total of 13 SUCs participated in this study with 61 respondents which include the Directors of the Extension Unit, facultyextensionists and extension office staff. The gathered data revealed that most of the extension services implemented by SUCs from 2016-2018 are integrated community extension programs that ran for 2-5 years. Stand-alone extension projects and activities were also conducted which are mostly technical skills training or capability –enhancement trainings. A number of challenges encountered in the four stages (preparation, implementation, monitoring and evaluation) of conducting extension services were identified and suggestions to address such are discussed. It is hoped that with the results of this study, SUCs realize strategies to address relevant problems and issues, and thereby improve their extension services to the maximum. |
| Anna Fay E. Naïve* Paul Joseph M. Estrera Archie Pachica | Design and Implementation of Faculty Class Attendance Monitoring System using BLE Beacons | Clarivate Analytics Indian Journal of Science and Technology Volume 13, Issue 40 pp. 4234-4243 November 2020 ISSN: 0974-6846 | To create a hardware and software tool that can be used for monitoring the faculty attendance and to generate customized reports. Methods/Statistical Analysis: The Bluetooth Low Level Energy (BLE) beacons would be set as stationary device that has proximity unique identifier. Once the smartphone of the faculty is within the range of the beacon, it can then record the faculty’s attendance. Calibrated beacon range makes the proposed design unique in terms of addressing common attendance tracking issues. Also, an automated attendance monitoring tailored based on the periodic report the Human Resource (HR) of the university. The researchers conducted a testing in the laboratory classrooms to check the functionality and reliability of the automated attendance monitoring. Findings: Based on the testing conducted, the system is capable to detect the faculty once he/she is inside the classroom, records his/her attendance and generates reports. The mean percentage error is 8.02% which means that the BLE beacon is acceptable in detecting the faculty’s smartphone prior entering to his/her class. |
| Kennet G. Cuarteros Ayla G. Lopez | Exploring the Effects of Social Media on Interpersonal ommunication among Family Members | Clarivate Analytics Canadian Journal of Family and Youth Vol. 12, No. 1 pp. 66-80 January 2020 ISSN: 1718-9748 | Communication is essential toward all families and given the technology that we have today, Facebook has been one of many social media sites that lets people stay connected whereever they may be, although, not all members of the family are in to using Facebook to communicate with their loved ones. This study aims to determine the effects of social media on interpersonal communication among family members, in particular, it analyzes the effectiveness of Facebook and family communication. In connection with this, the emphasis of this study is the effects of social media on the quality of interpersonal communication skills among family members. A sample of 25% of 120 individuals from four different colleges during the 2016-17 school year were the respondents of this study. A questionnaire was given to the respondents which included their profile, number of hours and activities on Facebook, and lastly the quality of their interpersonal communications with their family members. The results of the study show that communicating through Facebook more than likely leads to misunderstandings among family members as the messages are not expressed properly. Hence, a family must take time to talk and interact with each other personally in order to avoid these kinds of conflicts and maintain a good family relationship. |
| Rhoda A. Namoco Lou Ann Viado | Efficiency Analysis of Select State Universities and Colleges in Southern Philippines using Data Envelopment Analysis | Clarivate Analytics Indian Journal of Science and Technology Vol. 13 (38) pp. 3970-3982 ISSN: 0974-6846 | This study aims to evaluate the relative efficiency of select state universities and colleges (SUCs) in Southern Philippines using the inputoriented constant returns to scale (CRS) model and input-oriented variables returns to scale (VRS) model of data envelopment analysis (DEA). Methods: The input-oriented CRS and VRS model of the DEA is applied to analyze efficiency of selected state universities and colleges in Southern Philippines using four inputs (namely, Number of faculty members, personnel services and maintenance and other operating expenses (PS+MOOE), estimated cost per student, and tuition fee) and three outputs (namely, number of students enrolled, PRC rating, and number of graduates) as parameters. DEA works by comparing each decision-making unit (DMU) and classifies them as either efficient or less efficient. It also provides information on how these less efficient DMUs can be improved. Findings: Results of the study show how each unit perform when compared to other units. It showed that among the 26 SUCs considered in this study, only ten (10) SUCs are identified efficient and the remaining sixteen (16) SUCs are less efficient under the input-oriented CRS model. On the other hand, only thirteen (13) SUCs are identified efficient while the remaining thirteen (13) are less efficient under the input-oriented VRS model. These difference in the results from the two DEA models used may be due to the fact that CRS tends to lower the efficiency score while the VRS tends to raise the efficiency score. Application: DEA provides insights on how the less efficient SUCs can be improved by adopting the efficiency reference set (ERS) weights of the identified efficient SUCs against the less efficient SUCs in order to improve efficiency. In this way, results of this study provide insights on how the less efficient SUCs in Southern Mindanao can be helped for them to become efficient units. |
| Angelo Mark P. Walag Maria Teresa M. Fajardo | Rapid Assessment of the Perceived Impacts of an Adult- Education Science Competency-Based Enhancement Training on Alternative Learning System Mobile Teachers and Volunteer | Clarivate Analytics Science International (Lahore) Vol. 32 (6) pp. 605-608 ISSN: 1013-5316 | : The Alternative Learning System is a response of the Philippine Government to address access to education for a particular type of learner. It aimed at developing functional literacy and school participation rate of the deprived, depressed, and underserved Filipinos. This type of alternative delivery of education is facilitated and managed by mobile and volunteer teachers who reported that they are not confident in teaching science to diverse learners even after receiving generalized teacher training. Thus, this study aimed to rapidly assess the perceived impacts of adult-education science competency-based enhancement training on the teaching process, learning process, teacher's professional growth, and teacher's confidence. The study utilized a descriptive-survey research method using a researcher-made open-ended questionnaire. The responses were coded to prevailing themes and analyzed. The results highlight that most of the respondents report having gained positive impacts in terms of their teaching process by gaining advanced knowledge and acquiring skills that they can use to design engaging learning activities. |
| Angelie A. Collera Casper B. Agaton Charmaine S. Guno | Socio-Economic and Environmental Analyses of Sustainable Public Transport in the Philippines | SCOPUS Indexed MDPI Sustainability Vol. 12, Issue 11 pp. 1-14 June 2020 ISSN: 2071-1050 | Electric vehicles are regarded as energy transition technology towards more sustainable and environment-friendly transportation systems. Despite the benefits of reducing the dependence on fossil fuels and greenhouse gas emissions, the adoption of electric vehicles faces several obstacles ranging from financing issues, government policies, and public acceptance. This study aims to identify the economic, environmental, and social impact of the adoption of electric vehicles for public transportation. Using the Philippines as a case study, the findings highlight the economic advantage of investing in electric public transportation with high public acceptance. The results further identify significant decrease in air pollution, reduction of greenhouse gas emissions and encourage lowering the reliance on imported fossil fuels by shifting the public transport from conventional to electric transport system. This study recommends stricter implementation of government policies on modernized public transportation, stronger government support on financing mechanisms, establishment of charging stations in public and private terminals, and boosting programs for developing local-made electric vehicles. To make electric vehicle more environment-friendly, the government must accelerate the energy transition by increasing the electricity share from renewable sources and investing in more sustainable sources of energy. |
| Diogenes Armando D. Pascua Michael Lochinvar S. Abundo | Power And Energy Optimization Strategies Of A Wireless Sensor Network (WSN) For Two Dimensional Spatio-Temporal Temperature Profiling In Marine Environments | SCOPUS Indexed International Journal of Scientific and Technology Research Vol. 9, Issue 04 April 2020 ISSN: 2277-8616 | Energy consumption is one of the biggest constraints of the wireless sensor nodes deployed in marine environment. They are typically used for remote environment monitoring in areas where providing electrical power is difficult. Therefore, the devices need to be powered by batteries and alternative energy sources. Because battery energy is limited, the use of different techniques for energy saving is one of the hottest topics in Wireless Sensor Networks(WSNs.) Various battery optimization schemes have been developed both through hardware and software techniques. The ubiquity of Wireless Fidelity(Wi-Fi) based networks makes for a popular choice for establishing Wi-Fi based sensor networks but the relatively high-power requirements of these systems conflict with the requirement for long battery life and low maintenance. This work considers whether it is possible to reduce Wi-Fi power usage to the point where cheap Wi-Fi based products can be used instead of other protocols. The setup is composed of a wireless sensor which is based on the low cost esp8266 module tasked to gather temperature data in a marine protected area. Energy consumption was analyzed for the nodes at various states along the device firmware as well as the relationship between energy consumption against the rate of sensor data of transmission and system sleep period. The study also compares the energy usage of two network implementation: Message Que Telemetry Transport(MQTT) against Server-Client based system. Test results reveal that the sensor nodes can have a maximum battery life of 15.8 hours for both transmission methods, regardless of transmission rates, if no sleep period is implemented. Transmission rate have a profound effect on the systems battery life if sleep mode is implemented. It was found that battery life can increase up to 43 times for a transmission period of one hour and up to 40 times for a transmission period of one minute. An optimized WSN configuration utilizing MQTT transmission scheme proved to extend battery life more than that of the Server-Client scheme by up to 34 percent. From these analyses, the design of an optimal firmware and choice of network architecture can be derived where battery life can be extended in the longest possible time. |
| Angelo Mark P. Walag Romeo M. Del Rosario | Initial Evaluation of Metal Content of Acanthaster planci and Linckia aevigata 1 Collected from Carmen, Agusan Del Norte, Philippines | SCOPUS Indexed Malaysian Journal of Biochemistry and Molecular Biology Vol. 23 (3) pp. 1-7 December 2020 ISSN: 2600-9005 | Harmful substances like metals ultimately end in the seafloor and contaminate marine ecosystems. These substances are of particular concern due to their bioavailability and toxicity to marine organisms. In this study, metals (Pb, Cd, Cr, Zn, and Cu) were determined in the body wall of common sea star L. laevigata, and A. planci collected from Carmen, Agusan del Norte, Philippines. The metal content in terms of concentration of L. laevigata follows the order Pb > Cu > Cd > Cr > Zn while for A. planci is Pb > Cu > Cr > Zn > Cd. Both species were found to consistently contain the most lead and copper, which could suggest bioaccumulation of these elements from the environment. It is believed that these metals were sourced from the sediments or their food and are accumulated in their body wall. The differences in metal content for Pb and Cd were believed to be due to the difference in the diet for the two species. Comparable metal content was found in Cd, Cr, and Zn. It is recommended that further studies are conducted, especially in monitoring the metal content in the sediment and bioaccumulation of these metals in different trophic levels. |
| Antonio-Abdu Sami M. Magomnang* Dianne Mae M. Asiñero | Experimental Investigation on the Developed Portable Biogas System Utilizing Agriculutural Biomass Waste for Thermal Applications | Clarivate Analytics International Journal of Biosciences Volume 17, No. 6 pp. 218-226 2020 ISSN: 2222-6655 | Woody biomass such as forest residues and fast-growing trees are used as a source of fuel for cooking and heating that contributes to deforestation and forest degradation. Not knowing, that this biomass can also be utilized as a source of energy when the organic material such as animal manure, agricultural biomass wastes decomposes under anaerobic conditions. This study aims to evaluate the performance of the developed portable biogas system using agricultural biomass wastes as a source of fuel for thermal applications. The developed system was modified to become portable making it ideal for transport in remote areas where fuel is not easily accessible. Then it is tested and deployed to rural and remote areas by conducting thermal experiments. The results show that the developed system is capable to produce and supply gaseous fuel for thermal regardless of the gas volume and time duration. Thus, the study could help to replace traditional wood-based cooking with a renewable energy system utilizing agricultural biomass wastes as a source of fuel that can be used in rural and remote areas. |
| Kennet G. Cuarteros | Exploratory Factory Analysis on Road Accidents in Cagayan de Oro City | Clarivate Analytics Advances and Applications in Mathematical Stastics Vol. 19, Issue 4 pp. 237-258 2020 | The unplanned occurrence of the vehicular crash that may result in loss of lives, damage to properties, and/or injuries is said to be a Road Accident. Minimization of the occurrence of road accidents can perhaps be aided through the information on the factors that cause such incidents. Exploratory Factor Analysis (EFA) was used to address the problem of determining such factors. The data sets used are road accidents which consist of twenty-three observed variables (2,213 road accidents) consisting of the overall road accidents in the year 2016. The data sets were subjected to the Ordinary Least Squares (Minimum Residual) Method for determining the factor loadings, matched with an oblimin rotation to achieve a simple structure (final model). The final model determined consists of four underlying factors, namely the "Weather and Road Surface Condition Factor", the "Visibility and Time Factor", the "Road Separation and Repairs Factor", and the "Traffic and Location Factor". The final model was subjected to goodness-of-fit statistics and was determined to be of a good fit. |
| Kennet G. Cuarteros Noel G. Cuarteros Jr. | Survival Analysis in Hemodialysis Patients Using Cox Regression | Clarivate Analytics Advances and Applications in Stastics Vol. 65, Number 2 pp. 165-187 2020 | The number of people suffering from kidney failure who underwent hemodialysis is alarmingly increasing. Insufficient information on factors that affects the survival of hemodialysis patients may lead to negligence and death rate. A 24-month study period was conducted at the Nephrology Center of Cagayan de Oro (NCCDO) to determine the survival rate and factors affecting the survival among patients on maintenance hemodialysis. The Kaplan-Meier method result showed that out of 91 patients studied, 50.0% were still alive with a mean survival time of 15.051 months. Log-rank test result showed that there is a significant survival difference between different groups of ages and different diagnoses. Cox proportional hazard regression result showed that as the patient's age increases, the probability of survival decreases. Subsequently, patients who were diagnosed with Chronic |
| Kennet G. Cuarteros Dennis A. Tarepe Diangca M. Palawan | A Simulation Assessment of the Properties of the Estimators of a Partially Linear Model | Clarivate Analytics Advances and Applications in Stastics Vol. 65, Number 2 pp. 209-226 2020 | Theoretically, the partially linear model is a special case of the additive regression models (Hastie and Tibshirani [16], and Stone [30]), which allows easier interpretation of the effect of each variable and may be preferable to a completely nonparametric regression because of the well-known curse of dimensionality. Well known applications of semiparametric models are the analysis of the relationships between temperature and electricity usage (Engle et al. [12]), the wage curve (Blanchflower and Oswald [5]), the analysis of the household gasoline consumption in the United States (Schmalensee and Stoker [28]), and many others. In this paper, we assessed the asymptotic properties of an estimate of the unknown function We consider its consistency, convergence rate, and asymptotic normality. |
