UPV Digital Repository (UPV–DR)
The official Institutional Repository of the University of the Philippines Visayas (UPV)
UPV–DR serves as the institutional repository and digital archives that preserves and provides access to UPV's academic outputs. It aims to facilitate wider dissemination, increased societal use, and enhanced visibility of UPV faculty members, staff, and students’ researches, creative works, and innovations. It aims to promote UPV’s scholarly and artistic works, enhance collaborations between the academe and the industry, and amplify extension work and public service.
UPV–DR aims to preserve institutional records, permanent records, and university memories. It also aims to provide access to the intellectual outputs of UPV researchers, artists, and innovators, such as publications in journals, books, conference proceedings, theses and dissertations, and artistic works, among others. Access is generally unrestricted and is compliant with the Open Archives Initiative (OAI) protocol.
UPV–DR is managed by the UP Visayas University Library.
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Recent Submissions
Profile of juvenile delinquents in the Regional Rehabilitation Center for the Youth RRCY (Region VI) in Guimaras
Calizo, Brian M.; Ocbeña, Ramir B. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2001-03-22)
This study aimed to determine the profile of juvenile delinquents in RRCY VI in Guimaras. Respondents of the study were delinquents who were admitted in the rehabilitation center from November 15, 1998 to February 10, 2001. Interview schedules and questionnaires were the primary tools for gathering data. There were two sets of questionnaires using a five-point scale. The first set measured respondents’ perception towards delinquency and second set measured their personal conviction to change. Two-tailed tests and Pearson Correlation were used to test the validity and reliability of the questionnaires, respectively. Standard Deviation was used to determine respondents’ levels of perception towards delinquency and personal conviction to change. Results of the study showed that respondents have an average negative perception towards delinquency and an average conviction to change. It was also found out that most of them are 14 to 17 years old, middle-born child who have low educational attainment, grave criminal offense/s. Further, most of them came from big families, and at the same time intact. Lastly, most of them have parents whose occupations do not require any schooling or training to qualify.
Evaluation of antioxidant activity of Eucheuma spinosum and Sargassum crassifolium through 1, 1 - DIPHENYL - 2-PICRYLHYDRAZYL (DPPH) method and phytochemical screening
Calizo, Czarmina Donna P. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2012-10)
The study aims to evaluate the antioxidant activity of E. spinosum and S. crassifolium
that are potential natural sources of antioxidants. The cleaned E. spinosum (637.53 g) and
S. crassifolium (288.46 g) samples were macerated for 48 hours using 80% methanol.
The crude methanol, n — hexane and DCM extracts of these two seaweed samples were
assayed for their free radical scavenging activities using the DPPH Free Radical
Scavenging Method. Ascorbic acid (250 mg/L) and DPPH (20 mg/L) solutions were used
as positive and negative controls respectively. The results showed that all three extracts
of E. spinosum had low free radical scavenging activities, while all three (crude
methanol, n- hexane and DCM) extracts of S. crassifolium exhibited significant
antioxidant activities (50.93%, 61.07% and 57.89% respectively). Since the n- hexane
extract of S. crassifolium showed the highest antioxidant activity from the samples, its
half maximal effective concentration was measured and found to be 79.69 mg/L and was
higher than Ascorbic Acid (12.42 mg/L). In contrast to the very low free radical
scavenging activity of E. spinosum, it contained several phytochemicals whereas only
terpenes were present in S. crassifolium.
Economic and living conditions of migrant households in Baybay Norte, Miagao, Iloilo
Calizo, Renz Marion J.; Ydulzura, Nona Jean C. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2024-07)
This study aims to determine the economic and living conditions of the migrant community in Baybay Norte, Miagao, Iloilo. The total number of respondents in the household survey is 101. Decile dispersion ratio, Gini coefficient, and logistic regression were utilized to identify the determinants of poverty and the level of inequality among migrant households. Results indicated that 21.8% of the migrant households fall below the poverty line. The poorest 10% accounts for 3.7% of the total income compared to the 10% richest, which accounts for 36.1%. A Gini index of 0.40 also reveals the high level of inequality among them. The logistic regression results reveal that the percentage of earners in the household, formal education of household head, level of expenditure per capita, engagement in formal employment, and electricity consumption are the significant variables that determine the likelihood of the migrant households being poor. The findings of the study have significant implications for the development of interventions and policies aimed at improving the living conditions of migrant households experiencing poverty.
Perception of 4th-year criminology students in Iloilo City towards the CPP-NPA and their attitude towards red-tagging
Callada, Gilbert C.; Panes, Princess Grace T. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2022-06)
The Communist Party of the Philippines-New People’s Army (CPP-NPA) is portrayed negatively by the state, state forces, and the media. This negative portrayal of the organization fuels the counterinsurgency campaigns mainly done by the military and police. The security forces have also been flagged of red tagging leftist organizations accused of assisting the CPP-NPA. As future members of the police, this study aims to examine Iloilo City-based criminology students’ perception of CPP- NPA and their attitude toward red-tagging. The association between their perception and attitude and the manner by which concepts of communism and CPP-NPA were introduced to them in their university context were also examined. This study used a combined survey and in-depth interview of select respondents. Results show that Criminology students have generally negative perceptions of the CPP-NPA; they perceive the CPP-NPA as enemies of the state. Their ROTC program at large, together with their professors, and peers introduced the concept of CPP-NPA to them negatively, with their ROTC as the most significant. Despite this, students have a negative attitude toward red-tagging suggesting their disapproval of it. There is no association between their perception of CPP-NPA and their attitude towards red- tagging, which means their negative perception of the CPP-NPA does not lead to their approval of red-tagging.
Epibiota of Holothuria scabra (Jaeger, 1833) from TINMAR, Southern Guimaras and Sagay Marine Reserve, Negros Occidental
Calizar, Jessica Joyce D. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2013-04)
The composition and abundance of epibiota on the sea cucumber Holothuria scabra collected in TINMAR, Southern Guimaras (Panay Gulf, northern Sulu Sea) and Sagay Marine Reserve, Negros Occidental (Visayan Sea), were determined. Epibiotic organisms on 10 Holothuria scabra individuals in each site were detached from the body surface with a fine brush dipped in alcohol. Samples collected were fixed in buffered formalin, followed by counting and identification under light microscopy. Sea cucumber epibionts consisted of photosynthetic protists, mainly diatoms (Phylum/Division Bacillariophyta), and small marine invertebrates (Protozoa, Mollusca, Arthropoda, and Annelida). Some 2,237 epibionts were counted with the diatoms as the most abundant and frequently encountered group. Epibiont species on Holothuria scabra were almost the same in both sites, except for annelids which was only encountered in samples from Sagay. Mean epibiotic abundance of Holothuria scabra from TINMAR was 61 per individual which was about a third of epibiotic abundance on individuals from Sagay (163 per individual). This study provides preliminary information on epibionts present on Philippine holothurians, and will help future researches in this field.