BAHÁNDÌAN - Institutional Repository of Central Philippine University
Not a member yet
3383 research outputs found
Sort by
Bioactive components from cucamelon (Melothria scabra) with potential α-amylase and α-glucosidase inhibitory activity
Get PDFAbstract onlyCucamelons (Melothria scabra) are found growing in the wild in the Philippines. The lack of available literature regarding the plant species prompted to conduct of this study. This study aimed to extract and fractionate bioactive components from cucamelon with potential α-amylase and α-glucosidase inhibitory activity. Cucamelon fruit samples were obtained from Brgy. Pagsanga-an Pavia, Iloilo, extracted with methanol, fractionated using silica column chromatography, and assayed for α-amylase and α-glucosidase inhibitory activity. Results show that most but not all of the fractions have α-amylase inhibitory activity. Only four fractions showed α-amylase activity, namely, acetone (8.97 ± 1.54), acetone: methanol, 4:1 (15.54 ± 2.12), acetone: methanol, 3:2 (11.30 ± 2.51), and acetone: methanol, 1:4 (17.94 ± 2.19). Only one fraction had α-glucosidase inhibitory activity, which is acetone: methanol, 3:2 (3.59 ± 1.10). Cucamelon has a low inhibitory activity for α-amylase and α-glucosidase, enzyme markers of diabetes, which can be compensated by increasing the daily intake. It is recommended that unripe cucamelon fruits can be eaten regularly as salads, or pickled to help prevent the risk of developing diabetes.Includes bibliographical referencesBachelor of Science in Chemistr
Sustainable poultry farming: Design, construction, and testing of a hybrid (solar, grid, battery)-powered egg incubator
Get PDFAbstract onlyPoultry farming is one of the main components of the chain of supply of livestock that feeds a nation. As the demand continues to increase with the increase in population, poultry farming has been relying on artificial production of poultry supply such is true in terms of the incubation process. However commercialized incubator often run on purely grid power for its operation. The dependence on the local energy supply results in additional cost in production as well as a decrease in productivity whenever power outages occur. Thus, this study aimed to design, construct and test a hybrid powered egg incubator to help lessen the cost of production of poultry farming while utilizing the energy from the sun, a renewable energy and incorporating a battery to supply power in case of power outages increasing reliability and decreasing cost. The conduct of the study was implemented, and the device was successfully fabricated, tested and analyzed. Based on the gathered result, the hybrid powered egg incubator was able to perform as intended with a high percentage on the hatching rate of the incubator, which proves that the design made is capable of hatching eggs. Because the primary focus of this study was to lessen the cost of production as well as increase productivity due to losses of potential hatchlings during power interruption, the energy consumption of the device was monitored and it showed that the implementation of the hybrid energy system on the egg incubator was able to save as much as 50 percent of the energy utilized on the incubation and hatching process of the incubator. This in turn would result in the cost of energy consumption of the incubation process to be cut by half and would also affect the total cost it needs to hatch a batch of chickens artificially.Includes bibliographical referencesBachelor of Science in Electronics Engineerin
Tiered modular instruction as an approach in teaching polynomials
Get PDFAbstract onlyThis experimental study was conducted to determine the effects of tiered modular instruction in increasing students' conceptual understanding of polynomials. This study was conducted during the school year 2021-2022, to sixty Grade 10 Junior high school students in one of the public schools in the province of Iloilo. The experimental pretest-posttest control group design was utilized in this study and a validated and a reliability tested researcher-made test instrument composed of multiple choice and performance task items was used in collecting data. The study found that students who were exposed to the tiered modular instruction performed better in conceptual understanding than those who were exposed to the non-tiered modular instruction. Moreover, students who were exposed to the tiered modular instruction were observed to have improved study habits and had increased engagement with the learning materials, more diligent in doing their assigned task, and were able to submit their modules on time.Includes bibliographical referencesMaster of Arts in Education (Mathematics
Food and organizations: The relationship of organizational support and attitude towards office gastrodiplomacy among employees of a public organization
Get PDFConference paperOffice gastrodiplomacy refers to how food shapes and influences our social relations within organizations, usually in positive ways. Although already a pervasive practice, it is only recently that this concept has received wide attention from industry practitioners and researchers in the behavioral sciences. This emerging topic traces its origins to socioanthropological studies applied to modern work environments like office settings. To expound scholarship in this field, particularly in the local parlance, this study aims to present novel findings on how organizational support, in aspects involving staff development, resources, and emotional support, affects attitude towards office gastrodiplomacy. A total of 327 respondents participated in a one-shot survey administered from September to December 2019 at the 25 offices of a public organization in the Philippines. Employing a descriptiverelational design, descriptive findings revealed that employees indicated being ‘fairly supported’ by their offices, while a higher proportion of respondents stated that they generally have a ‘favorable attitude’ towards office gastrodiplomacy. Relational statistics, however, generated a ‘not significant relationship’ between the two variables as a whole and across the three components. The researchers argue that it is likely that such a finding is a result of how the respondents only received organizational support in ‘fair’ terms. As such, results may somewhat differ if a ‘high’ favorable attitude to office gastrodiplomacy is complemented with ‘high’ organizational support. It is then proposed that a similar design may be replicated among employees in private organizations who may offer a different perspective, especially as regards aspects of organizational support
Food tourism industry in SOCCSKSARGEN region: Availability of resources, awareness, attitude, and compliance with the implementing rules and regulations on food safety and sanitation among street food vendors
Get PDFJournal articleA predictive correlational study determined the level of resources, awareness, attitude, and extent of compliance with the Implementing Rules and Regulations (IRRs) on food safety and sanitation among street food vendors in food tourism industry in SOCCSKSARGEN Region, Philippines. The answers of 265 randomly selected street food vendors in the five cities of the said region of Mindanao to the 5-part questionnaire was the source of data for the study. Results showed that majority of the street food vendors have “occasionally available” resources. They were “less aware” about and have positive attitude towards IRRs on food safety and sanitation. The extent of compliance with IRRs on food safety was “satisfactory” and on sanitation was “very satisfactory.” Civil status, type of premise, type of food sold and capital were significantly related to availability of resources. Type of premise was highly significantly related to awareness about IRRs on sanitation. Attitude significantly enhances the relationship between availability of resources, awareness and compliance with IRRs on food safety and sanitation. Level of awareness and availability of resources was a significant predictor of the extent of compliance with IRRs on sanitation, and on food safety, respectively
The medical and emotional experiences of first-time mothers who gave birth in a selected private hospital in Iloilo City, Philippines in the midst of the COVID-19 pandemic
Get PDFAbstract onlyThis study investigates the understanding of the medical and emotional experiences of first-time mothers giving birth during the COVID-19 pandemic in a selected private hospital in Iloilo City, Philippines. Participants were recruited through purposive sampling. Semi-structured in-depth interviews were conducted with six first-time mothers residing in Iloilo City, Philippines that gave birth in a selected private hospital in Iloilo City amid the COVID-19 pandemic. All interviews were recorded, transcribed, and analyzed using descriptive phenomenological analysis, a qualitative method. The main themes were how they viewed the COVID-19 pandemic and giving birth during it, as well as their medical and emotional experiences, how they coped with the circumstance, and what they learned from it. The findings of this study reveal that the COVID-19 pandemic influenced how participants felt about giving birth during the pandemic and that the protective measures established during the pandemic heightened first-time mothers' concerns. When in childbirth, it was revealed that first-time mothers were primarily able to focus on the extreme pain of delivery while disregarding other unnecessary information.Includes bibliographical referencesBachelor of Science in Psycholog
Acceptability of star apple (Chrysophyllum cainito) tart
Get PDFAbstract onlyThe purpose of this study is to determine the level of acceptability of Star Apple (Chrysophyllum cainito) Tart in terms of aroma, appearance, flavor, texture, color and its overall acceptability. It utilized an experimental research design that employed accidental sampling method. The data were gathered through a questionnaire given to the 40 respondents of Barangay Dungon A, Jaro, Iloilo City during the second semester of S.Y 2021-2022. The result showed that the formulation of every ingredient among the three mixture of the tart compliments the star apple preferably the Product B (Mixture of Cinnamon and Rum) in which it is extremely acceptable to the respondents especially to the female respondents aging 18-32 years old in terms of aroma, appearance, flavor, texture, and color. Furthermore, there is no significant difference in the level of acceptability of Star Apple (Chrysophyllum cainito) tart when they were grouped according to age and sex.Bachelor of Science in Hospitality Managemen
Acceptability of oregano (Origanum vulgare) and moringa (Moringa oleifera) cookies
Get PDFAbstract onlyMoringa (Moringa oleifera) and oregano (origanum vulgare) cookies have gained popularity and conquered food markets due to increased awareness of health benefits from polyphenols. Oregano (Oreganum vulgare) and moringa (Moringa oleifera) could be considered as a potential functional food ingredient due to its health benefits. Thus, this study aims to utilize oregano (origanum vulgare) and moringa (moringa oleifera) into cookies and to determine its acceptability. The results revealed that male and female have the same level of acceptability which is highly acceptable. On the other hand, the middle aged and old age respondents have different levels of acceptability which is acceptable and highly acceptable. In addition, there is no significant difference in the aroma, appearance, taste, and flavor of oregano and moringa cookies. The Quantitative method using an experimental research design was used in this study. This study was conducted to determine the level of acceptability of oregano (origanum vulgare) and moringa (moringa oleifera) cookies in terms of appearance, aroma, texture, flavor and overall acceptability and when classified as to sex and age. The study was conducted at Brgy. Sarapan, Passi City, Iloilo this 2nd semester academic year 2020-2021. The researcher used the self-made questionnaire as the research instrument in this study. The respondents of the study were 34 individuals residing at Brgy. Sarapan, Passi City. The respondents were classified as 20 females and 14 males of which 13 respondents belong to the younger generation, 12 respondents’ ages 34 years old and above and 9 are in middle age. Results showed that the level of acceptability of the respondents when grouped into sex is highly acceptable the same as well as when grouped into age.Bachelor of Science in Hospitality Managemen
Design and realization of computer network virtual experiment economic teaching platform based on mathematical image and signal processing
Get PDFJournal articleThe emergence of computer network virtual experiment teaching provides the possibility to solve the limitations of hardware equipment and time for cultivating computer talents in colleges and universities. Although the network virtual experiment teaching platform can provide learners with an autonomous learning environment, the design of these modules still has problems such as weak integration with the teaching management system, immature functions, and high cost. In order to make the computer network virtual experiment economic teaching platform better integrate with the teaching management system, reduce the cost of investment and provide a better system environment for the development of functions; this research will design the virtual teaching platform through the method of mathematical image and signal processing. By analyzing the functional requirements of the users of the teaching platform, the overall design of the system is determined, and the designed system is specifically implemented and designed for performance testing and functional testing. The functional test results are combined with expectations. The average response time of the system in the performance test results is 0.30 s, which is in line with the expected results. The experiments show that the system designed and developed in this study works well
Scale inhibitors for industrial circulating water systems: A review
No full textJournal articlePresence and deposition of sparingly soluble salts, known as scale, has been one of utmost damaging problems of circulating water. In industry, the scaling phenomenon may cause technical problems such as reduction of heat transfer efficiency in cooling systems and obstruction of pipes. Therefore, adding scale inhibitors that exhibit desired efficiencies to control scale is so important to mitigate adverse effect in water circulation systems because of their high tolerance for cations, such as Ca2+, Mg2+, and their ability to efficiently dissolve the unstable polymorphs of inorganic salts at the early stages of crystallization, thus impairing scaling. This paper reviews the research progress and state-of-the-art developments of scale inhibitors, including natural scale inhibitors and synthetic scale inhibitors. Natural scale inhibitors, including natural organic and plant extract scale inhibitors, are non-toxic, inexpensive, widely used, biodegradable and in line with the characteristics of green chemistry. Synthetic scale inhibitors mainly composed of phosphorous, polycarboxylic acid and polyaspartic acid are widely used due to their excellent performance. Detailed comparison between natural scale inhibitors and synthetic additives alongside future directions towards antiscalant are also discussed. The former are less water-soluble, while the latter require a large dosage, which causes a great burden to the environment. In particular, the need for developing green, efficient, easy preparation, and pollution-free scale inhibitors, studying the interactions between scale inhibitors and metal ions is stressed. It is expected that this paper could offer an insight in deeper understanding the scale inhibitors in industry and provide some clues for exploring more advanced scale inhibitors technologies.National Natural Science Foundation of China (Grants 21571188); Science and Technology Development Program of Kaifeng, China (ZD17005); Henan University Double First-Class Major Project, China (2018YLZDCG02