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
Removal of total solids from surface water of Malihao River, Victorias, Negros Occidental using chitosan derived from green mussel (Perna viridis) shell
Caligan, Jeff Tristan Z. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2018-06)
Total solids are water pollutants that can either be suspended or dissolved in water. Suspended solids are those that can be filtered while those that can passed through are considered as dissolved solids. Five sampling stations were tested along Malihao River in Victorias City, Negros Occidental to determine parameters such as pH, temperature, total settleable solids (TSeS), total suspended solids (TSS), total dissolved solids (TDS), volatile suspended solids (VSS), conductivity, and salinity. Among these parameters, the focus of the study is on TSS and TDS and assess the removal efficiency of chitosan with these pollutants. The chitosan used was obtained from the shells of green mussel (Perna viridis) through deacetylation of chitin. The chitosan obtained has 73% degree of deacetylation and has characteristic peaks in the IR spectra at 3470.82 cm-1 and 1636.36 cm-1 representing the vibrating aliphatic O-H and bending N-H group, respectively. The optimum chitosan dosage was determined at 15 mg, which has removal efficiency of 83.46% and 25.48% for TSS and TDS, respectively. It also decreases the turbidity of the water based on the clarity in color. High TSS values were observed at Station 2 (Malihao Bridge) and Station 5 (Daan Banwa Wharf) with values of 125.5 and 232.0 mg/L, respectively. These values exceed the DENR Administrative Order 2016-08 for Class C waters, which is 80 mg/L. The optimum dosage was used to remove TSS and TDS at each sampling stations. TSS of all sampling stations were reduced to more that 50% of the initial value while TDS values rose to 80% and higher of the initial value. Thus, chitosan derived from green mussel shells were effective in removal of TSS but not with TDS.
Relationship of moderate to heavy Trichuris trichiura infection with the packed red cell volume and mental ability of elementary schoolchildren in Miag-ao, Iloilo
Calibjo, Hartzell M.; Calvo, May Lyn A.; Dizon, Lourdes Anne A.; Garay, Cyrus Q.; Gonzales, Lorenz Alfred B.; Gibraltar, Felli Claire G.; Peralta, Lou Gillyn B.; Spitzer, Mark Manfred B.; Taburaza, Larimee S. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2005-04)
Trichuris trichiura commonly known as whipworm is a nematode that infects human particularly primary school-aged children. Studies show that moderate to heavy Trichuris infection may adversely affect the cognitive functions of schoolchildren (Nokes, 1991) and may cause anemia overtime (Politt, 1982). However, this has not been established in the local setting. This led the researchers to locally conduct a study that would primarily determine the relationship of the moderate to heavy intensity of trichuriasis with the mental ability of schoolchildren and with the Packed Red Cell Volume. It also aims to determine if there is a significant difference between the mental ability test scores and the Packed Red Cell Volume of moderate to heavy Trichuris infected group and the non-infected group.
Three coastal elementary schools in Miag-ao, Iloilo was chosen as the study sites. These were Miag-ao West Central Elementary School, Igtuba-Guibongan Elementary School, and Bacauan-Mambatad Elementary School. Five hundred twenty five (525) elementary pupils aged 8—14 years had their stool samples examined using Modified Kato Katz to determine the intensity of Trichuris infection. Thirty (30) moderate to heavy Trichuris infected students and another 30 non-infected students were randomly selected as the study sample. Capillary blood samples were collected from the 60-study sample. The packed red cell volume was determined using the Microhematocrit Method and was categorized as normal and below normal.
Mental ability of the study sample was measured using the standardized Culture Fair Intelligence Test (CFIT). The test instrument was administered and interpreted by the Psychometricians. The results of the tests consisted of verbal interpretation and was categorized as below average, average and above average.
The results showed no significant difference between the moderate to heavy infected group and the non-infected group based on mental ability test verbal interpretation (p= 0.770). The non-infected group even obtained a higher proportion of study samples that were below average CFIT test scores compared with the moderate to heavy infected group.
The results of packed red cell volume revealed that all study samples (100%) in the non-infected group had normal Packed Cell Volume (PCV). On the other hand, only
90% of the study samples in the moderate to heavy infected group had normal Packed Cell volume (PCV) while the remaining 10% had below normal PCV. Statistically however, the difference was not significant (p= 0.164).
Finally, Linear Regression Analysis showed no linear relationship between mental ability test Deviation Intelligence Quotient and Packed Red Cell Volume among the study samples. The scatter plot diagram showed dispersed distribution of study samples which means weak relationship between the two variables.
The insignificant results in this study could be attributed to various confounding variables that were not controlled strictly all throughout the study, as well as the insensitivity of the test instruments used. Thus, the study recommends controlling carefully the various extraneous variables such as socioeconomic conditions, nutritional status of the study sample. The study also recommends the use of more sensitive and specific instruments for measuring the blood level and cognitive functions.
American colonial education: A case study of selected local Filipino educators
Calibara, Ma. Christine A. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2014-04)
This research paper documents the life and experiences of the four local educators namely Adriano Cabardo, Esteban Amparo, Perpetua Amparo, and Elena Amaparo. As this paper aims to show and document their life, it also aims connects their life experiences particularly to the educational system introduced by the American colonizers, in which greatly affected the flow of their career. The educational system made them one of the pioneer teachers in their hometown due to the training that they have. The teaching career was not only the product of the said educational system for them, but also, this system gave them opportunities to improve their skills on their field such as in music, and writing.
The researcher concludes that the educational system as used by the Americans in colonizing Philippines, it also became a room for opportunities for other people to improve their way of life as exemplified by the life and experiences of these four (4) local educators.
Ding, ang poster!: A reception analysis of Filipino Gen Z on teleserye posters
Caleza, Candido Jose G.; Bacnutan , Zoe Milabeth B.; Roquillas, Sunday Vince T. (Division of Humanities, College of Arts and Sciences, University of the Philippines Visayas, 2024-06)
Posters are one of the promotional tools for creating awareness for an upcoming teleserye since they are the teleserye's official identity. By using the eight (8) design elements, particularly line, shape, texture, scale, tone, space, color, and typography, one may create a successful artwork. Accordingly, three (3) posters of Justin Besana, a graphic designer from ABS-CBN Star Cinema and Film Restoration, were used in this study, specifically Dirty Linen (2023), Darna (2022), and Ang Probinsyano (2021). in examining the Filipino Gen Zs’ perceptions of these visual elements in understanding the teleserye's themes and their motivation to watch the teleserye. Using purposive sampling, five (5) senior high school students from Miagao National High School were selected and interviewed in-depth using the crafted questionnaire based on the design elements, wherein the similarities and differences of their answers were analyzed using reception analysis. The study revealed that these elements were helpful in creating the respondents' prenoted (based on their experiences) or contextual meanings (based on other related elements) towards the posters. They were able to identity the teleserye’s themes and relate them to current Philippine issues, which concludes that through visualization, the respondents were able to make their own interpretation of the elements, resulting in them being either motivated or not to watch the whole teleserye. Thus, this study provides valuable insights for Communication and Media Studies students, graphic designers, and the public to better understand visual communication and literacy, as well as valuing the creative processes and visual storytelling through teleserye posters.
Phytosociological study in Garantiangan Island, Taklong Island National Marine Reserve (TINMR), Nueva Valencia, Guimaras, Philippines
Calesterio, Krizha Marie C. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2018-12)
Each island has a unique set of characteristics attributed to differences in size, isolation, relief and climate, and origin. Such characteristic influence their floristic composition. Rapid development of tropical islands due to expansion of tourism thus put the flora under risks. In addition, the impact of climate change is also a big factor. There is a need to do baseline studies for proper management and conservation purposes. This study was conducted in Garantiangan Island (a part of Taklong Island National Marine Reserve) in Nueva Valencia, Guimaras, Philippines to assess the species composition, and community structure of flora present. Data were collected by establishing random plots from August 2016 to February 2017. Results showed a total of 45 species (7 unidentified) belonging to 26 families, were recorded. Rubiaceae was the most dominant family, having five representative species. Invasive species found were Leucaena leucocephala, and Lantana camara. Floras found belonged to two types of vegetation namely; littoral vegetation: herbaceous strand, littoral shrubland and littoral forest zone and mangrove vegetation. Total stand basal area was 16.63 m2 ha- 1 , with 4985.71 stems ha-1. The total seedling density (1943 individuals ha- 1) > total sapling density (1686 individuals ha- 1) > total tree density (1343 individuals ha- 1) suggests “good” regeneration status. 1. Tarenna littoralis had the highest relative density (18.05%) and frequency (8 %). Terminalia foetidissima had the highest relative dominance (26.70%) and was the most important species (37.04 %). Shannon-Weiner diversity index and Simpson evenness index values recorded were 1.33 and 0.89, respectively, which suggests low diversity and evenness in the island. Given that the biodiversity in the island is threatened, though the results are preliminary and full floral surveys were not carried out, data gathered can serve as a basis for conservation and management actions.