Undergraduate Theses
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14583/13
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Item Optimization of parameters for the Fe-humic acid complex formation using cyclic voltammetryBautista, Coleen M. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)Humic acid extracted from an artesian well located at Sta. Barbara, Iloilo was used to generate an Fe-HA complex as a potential additive to bio floc systems to augment the essential mineral Fe. The humic acid obtained was black in color and had a powdery texture after oven-drying. The Fe-HA complex were prepared using Fe3+ ions at different pH values specifically at pH 8, 9 and 10. Formation of the complex was investigated using the cyclic voltammetry to determine the ideal conditions to maximize the binding of the metal ion. The results showed that there are two oxidation and reduction cycles which suggests that there are two species undergoing oxidation and reduction. It is possible that the free iron and the Fe in the complex are undergoing a redox cycle although the quinone group in the humic acid can also act as a redox center. Atomic Absorption Spectroscopy can help corroborate the amount of complex formed to help deduce the redox active center.Item The relationship between selected social factors and adolescent pregnancy in Iloilo CityBautista, Joseph Raymund I.; Funclara, Melinda Tordesillas (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2004-03)This study attempts to ascertain if there is a relationship between selected social factors and adolescent pregnancy. Specifically, it aims to find out if school engagement, parental supervision, foster and kinship care, religiosity, contraceptive knowledge, and mass media exposure is related to adolescent pregnancy. The researchers hypothesized that there is a relationship between these selected factors and adolescent pregnancy. Adolescent mothers between 14 to 21 years old and were either pregnant or had given birth before December 2003 from three barangays in Iloilo City were interviewed. The gathered data were then subjected to Yates corrected chi-square test of independence to find out if there is any relationship between the dependent and independent variables. It was found out that school engagement, parental supervision, level of religiosity, exposure to mass media, and knowledge in contraceptive use have no relationship with adolescent pregnancy. On the other hand, foster and kinship care was found to have a relationship with adolescent pregnancy. For future research directions, the researchers recommend to those who are interested in adolescent pregnancy to explore the interrelationship between the factors that contribute to adolescent pregnancy. The researchers further suggest that other factors, such as economic status, be explored. Increasing the number of respondents might also be helpful. Finally, the possibility that staying away from compromising situations with the opposite sex is an effective factor to prevent adolescent pregnancy could be an interesting topic.Item Phytochemical screening, antibacterial and antioxidant activity of Ethanolic seed extract of Kadios (Cajanus cajan) from Igbaras, Iloilo, PhilippinesBautista, Lance Ruther E. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2016-06)Natural products are products which may have been chemically synthesized, through semi- or total synthesis. The presence of these natural sources gave us greater opportunity for discovery and different innovations, as answers to the emerging needs of the people. This study focused on the chemical properties, antibacterial and antioxidant activity, of Cajanus cajan, popularly known as Kadios, from Igbaras, Iloilo, Philippines. A total of 371.98 grams of air-dried C. cajan seeds was macerated to 1000 mL of ethanol for 72 hours. The concentrated extract was subjected to three tests and assays. All tests were done in triplicates. The test for phytochemicals, which served as the preliminary screening, revealed that the ethanolic extract of Kadios seeds contains alkaloids, flavonoids, phenols, saponins, tannins, quinones, and steroids. The antibacterial assay showed that the ethanolic seed extract of C. cajan can inhibit the growth of Gram-negative bacteria, E. coli, with zone of inhibition equal to 10.3 ±2.15 mm to 33 ± 1.63 mm. The antioxidant assay revealed that the extract has positive inhibition only at high concentration against DPPH, and so IC50 was further determined to be 27,310 ug/mL. Statistical analyses were also done, and confirmed that there is significant difference among the data at (P<0.05). Summing up, the extract has antibacterial activity and minimal or almost close to zero antioxidant activity, while containing a remarkable number of secondary metabolites causing the chemical activities of the extract.Item What makes you stay: A test of the investment model on relationaship persistenceBatisla-ong, Zyra Lee A. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2017-06)This study focused on the perception of relationship persistence of women through satisfaction, quality of alternatives, investment size, and commitment in light of infidelity. Survey and interview sessions were conducted among 85 women, aged 24-50 years old, from Iloilo City and Jordan, Guimaras. The results show that satisfaction, quality of alternatives, and commitment level positively affects the decision of women in persisting through with their relationships while investment size did not have any influence in women's perception of relationship persistence. Qualitative data was also used to support the results of the data analysisItem Impacts of DOH-led policy shifts on health workers and Iloilo public hospitals' management at the time of COVID-19Bauso, Christopher Mark C.; Dayata, Audrey Eurielle G.; Niñeza, Tristan L.; Zaldarriaga, Trisha I. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2023-07)This study explored the actual policy shifts in public hospitals in Iloilo Province during the first six months of the COVID-19 pandemic, from January to June 2020. The study looked into how the implementation of the DOH-crafted policies impacted healthcare delivery, the health workforce, and response to the care-seeking behavior of the patients. Key informant interviews (KII) and semi-structured interviews were employed among the hospital management and the frontline workers of Rep. Pedro G. Trono Memorial Hospital and DOH-retained Western Visayas Sanitarium and General Hospital to gather data for the study. The KJI were participated in by the hospital chiefs and the IPC heads. Meanwhile, doctors, nurses, medical technologists, admitting clerks, and non-medical health workers were respondents of semi-structured interviews to determine the impacts of the new policies. Conforming to the available literature on pandemic response, this study revealed that optimal conditions were not readily achieved in the public hospitals under this study, mainly due to lack of resources to materialize the DOH-mandated changes. The policies were not fit to the current structure and service capacity of the hospitals and health workers carried the burden of ensuring adequate delivery of care. We discovered that health workers were exhaustively working despite the lack of government support in terms of benefits, compensation, and hazard pays. Furthermore, health workers encountered difficulties in rendering immediate care to patients who initially avoided hospital care resulting in an increased number of recorded ER deaths. Overall, we observed that the hospitals were able to keep up with the policy shifts through exploring feasible alternatives. However, DOH-retained institutions garner more favorable outcomes than public district hospitals since resources were directly transferred to them from the DOH Regional Office. Crafting context-specific policies addressing public health crises is recommended following the results of this study.Item Sa ginhalinan it Akean: a postcolonial analysis on the Talibong Tradition of the Taong Labas of the Municipalities of Libacao, Madalag, and Malinao, in the province of AklanBautista, Theodore Ricardo R. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2022-06)The Talibong is a fighting bolo of the Panay Bukidnon of the Central Panay mountain range, but is also common among the lowland agricultural communities in Aklan. Often characterized by carvings on its hilt and ornaments such as old coins embedded on its sheath, the Talibong is part of the daily attire of the Akeanon Bukidnon who live in the interiors of Libacao, Madalag, and Malinao; a hinterland people who, historically, have been ‘othered’ by the predominantly Christian lowlanders and branded with derogatory terms such as buyongs (savages/bandits), buki (rustic/uneducated), or mundos (of the mountains). As of the present, the Province of Aklan has made the Talibong into one of the key symbols of Akeanon cultural heritage - with it now being displayed in the offices of local government officials and representing the province in digital posters promoting Akeanon culture for ecotourism. By viewing the history of upland-lowland relations in the province through Francis Gealogo’s concept of the Taong Labas and Gayatri Spivak’s theory of ‘othering’, this thesis looks into how these hinterland communities were ‘othered’ during the colonial period up to contemporary times; identifying how the Talibong had once become a defining representation of a perceived savagery, backwardness, and culture of violence ascribed to these communities by those in the town centers. With the use of archival sources pertaining to accounts of these hinterland peoples in the late 19th century up to the present and key informant interviews with elders from the town centers and the very cultural bearers of the tradition, this thesis points out that the hinterland peoples of the interiors of Libacao, Madalag, and Malinao are historically the Taong Labas of Aklan, whose Talibong tradition has been appropriated by the centers, in their bid to construct a genuine local identity built upon the notion of indigeneity.Item Antifungal activities of lemongrass (Cymbopogon citratus) essential oil -B-cyclodextrin inclusion complex incorporated in commercial fish feedsBaure, Jiaren G. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)During the wet season in the Philippines, fish feeds can be contaminated with mycotoxins, affecting fish production. The addition of essential oil (EO) is one of the ways to prevent this, but it is prone to physical and chemical reactions. Thus, this study aims to encapsulate lemongrass essential oil (LGEO) in B-cyclodextrin (B-CD) to produce an inclusion complex (IC) that can be used as an additive in commercial tilapia feeds to prevent or minimize fungal contamination. The inclusion complex was made using the co-precipitation method and was characterized by Fourier Transform Infrared (FTIR) Spectroscopy. The spectrum was similar to that of citral, a major component of lemongrass essential oil that is responsible for inhibiting fungi. The antifungal activities of pure and encapsulated LGEO at varying concentrations against Aspergillus species were carried out by the Agar Well Diffusion assay. Results showed that A. flavus was more susceptible in LGEO and IC compared with A. fumigatus. The tested concentration of EO could inhibit both fungi. However, it would take 50% IC to effectively inhibit the growth of both fungi. The stability of the inclusion complex in commercial fish feeds was also evaluated. The feeds were stored in an area with the appropriate conditions that could promote the growth of molds, such as temperature (>27°C), moisture levels (14%), and relative humidity levels (>70%). The results showed that the encapsulated LGEO was effective in extending the shelf life of the feeds and was best observed at a concentration of 5 g kg-1 IC. The oil remained active for nine days, wherein about 10- 40% of the feeds with 5 g kg-1 IC were covered with molds. On the other hand, about 70-100% of the surface of the feeds with essential oil was contaminated with molds after nine days, which indicated that encapsulation of EO was needed to maintain its effectiveness as an antifungal agent.Item The role of key actors in the promotion of local community development: The case of KALAHI-CIDSS projects in Janiuay, IloiloBartolome, Carie Fel M.; Sotrina, Emalyn S. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2008-03)This research is centred on the research problem - what are the roles of the key actors in the promotion of local community development in the case of the Kapit-bisig Laban Sa Kahirapan-Comprehensive and Integrated Delivery of Social Services (Kalahi-Cidss) projects in the municipality of Janiuay. Iloilo. Firstly, there is a need to explain local community development in the Kalahi-Cidss projects in Janiuay. Iloilo. Next, the paper proceeds to describe the resources that are being employed in Kalahi-Cidss in Janiuay in order to meet its goals. Then, the paper directs on the description of the roles of the key actors in the Kalahi-Cidss projects in Janiuay, Iloilo. The last objective of this paper is to describe the developmental outcomes brought by the projects to the people of Janiuay. The research problem and objectives of the paper were addressed through desk research, secondary material review, project site inspection, informal interviews with the barangay residents, and key informant interview with the Kalahi-Area Coordinator in Janiuay. The method of triangulation was used to avail more complete and more reliable data with less validity threats. It was found out that the Kalahi-Cidss is the flagship program of the Philippine government in addressing poverty in the country. Its foundation lies on the understanding that when people are empowered, they have the capability to spare themselves from poverty. Resources being employed in order to meet the goals of the project were categorized into proximate and non-proximate interventions. Three barangays in Janiuay were studied. The roles of the key actors in each barangay were described in the paper. The roles of the key actors in the three barangays were compared with each other and assessed in relation to the success of the Kalahi-Cidss projects in each respective community. Key actors involved in the projects were the barangay officials and the local community. The project success and developmental outcomes depended largely on how these two actors collaborated with each other. However, most essential in the actual process was how the former performed their task as leaders of the community. Barangay officials are the initiators of local community development through the Kalahi-Cidss.Item Decision making in the practice of birth control in a rural communityBarrios, Ritchie P. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1992-07)This is a study on the decision-making pattern of couples in the use of birth control in a rural community. The study sought to determine: 1. Who the decision-maker is in the couple structure: 2. how the decision to practice was reached by them and 3. what are the basis for the choice of a particular birth control method. Based on the findings it was concluded that for the couples in Brgy. Tuburan, Pototan, Iloilo it was both the husband and the wife who decided that they will practice birth control. This is contrary to the popular notion that it is the husband who decides. It was also found out that the midwife who was at the same time the family planning implementor, played a major role in the decision to practice birth control. Having reached the decision to practice birth control, certain considerations like convenience, effectiveness, no side effects, etc. were taken by the couples in the selection of the method to adopt. It was however found out that the final choice of the method to be used was made by the family planning implementor. It is interesting to note, however, that in the barangay only forty-one couples out of the one hundred seventy have or are practicing birth control. This is attributed to the fact that the family planning implementors failed to get the message across to a larger audience. The mothers' class which was used as a strategy to attract couples to take interest in family planning failed to reach large segment of the population.Item Level and areas of occupational aspiration of street children in Iloilo City Proper as affected by their ordinal position, size of family and educational levelBarrios, John E. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-03)This is a study on the "effect of ordinal position, size of family and educational level on the level and areas of occupational, aspiration of street children in Iloilo City Proper. The study hypothesizes that there is no significant relationship in the level and areas of occupational aspiration of street children of varied ordinal position, size of family and educational level. Chi-Square test for independence was used to find out if there is a significant relationship between the variables at 0-05 level of significance. The results show that street children in Iloilo City Proper aspire for high level occupations failing into areas under Science, Technology and Culture—related :most of them are. middle children, enrolled in the primary level and come from big families. The study suggests future researchers on the level and areas of occupational aspiration of street children should take into consideration the street children's performance in- school and the programs conducted by agencies concerned, especially those with their education and family therapy-