UPV Theses and Dissertations
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Item Community structure of beach forest species in Mag-aba, Pandan, AntiqueBanogon, Tharrah Anne O. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)The Philippine beach forest is one of the understudied and less-popular important ecosystem that provides great number of food and economic products in the country. In fact, we lost them much earlier than the mangrove community that there is miniscule information is existing about them. There is a need for understanding the forest status and community structure due to the rising threats of natural and anthropogenic factors. The unexplored forest patch in Barangay Mag-aba, Pandan, Antique can provide additional information on beach forest diversity and abundance in the country, thus the need for this study. This study aimed to record the different species and to provide description of the community of beach forest in Mag-aba, Pandan. Specifically, the objectives of this study are (1) identify, describe and classify the beach forest species present in the area, and (2) describe the community structure in terms of species composition, diameter at breast height and stand height, stand basal area, importance value, evenness and Shannon- Weiner Index of Diversity. The transect plot method adopted from English et al (1994) was used to obtained quantitative data. A total of 80 beach forest species representing 41 families were recorded. The family Fabaceae and the species Cocos nucifera dominated the forest community. The stand basal area of 83.24 m2 ha-1 reflects a mature beach forest community, however the community is made up of mostly low DBH classes (saplings and seedling) also indicating a regenerating forest. Mag-aba is characterized to have a low species diversity (H'=1.17), however the individual species are fairly distributed (J'- 0.83). These results are addition to the existing knowledge of beach forest community that would serve as information for conservation measures.Item Batog kag Aya-ay: The politics of ecological consciousness of the presidents of Barangay Pantalan President Roxas, CapizBañez, Ma. Arve (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1992-03-01)This study examines the folk consciousness on the environment of the residents of Barangay Pantalan, President Roxas, Capiz. A combination of the etic and emic approaches in social sciences was used to make sense out of the informations gathered from the field. This study also identifies Man as Master of Nature, Man and Nature in Antagonism, Man in Harmony with Nature, and Nature as Sacred as the different relationships between human being and Nature. These different relationships between human being and Nature are contained- in the two broad opposing rationalities, namely, Speciesism and Environmentalism. An ethnocartography of Barangay Pantalan is constituted in this study using the folk sense of direction and orientation. In addition, the study examines the folk beliefs and practices built around man-made structure, sea, and the flora and the fauna. This study concludes with a discussion of the politics of environmentalism. Human being does not dominate Nature nor Nature dominates human being in this politics of environmentalism. The same politics embodies ethical dimensions which check the drift toward the destruction of the environment.Item Group study vs. individual study: A comparison of effective study techniqueBang-as, Erlie P.; Toles, Elohai N. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1998-03-31)This study was an attempt to find out which of the two study techniques is effective: group study or individual study. It also sought to know which of the two academic groups performed better in a group study or in an individual study. The respondents were 60 students from the Biological and Social Sciences Divisions. Subjects were selected using the simple random sampling. The design was a 2 (Group study and Individual study) x 2 (Biological Sciences and Social Sciences) factorial design and this tested three hypotheses; (1) To find out if students perform better when they study in groups than when they study alone; (2) To find out if Biology students perform better than Social Science students; (3) To know if Biology students perform better than Social Science students when they study in groups than when they study alone The researchers used the 2x2 Analysis of Variance in the analysis of the data. The results were obtained by using the ANOVA and F test was used to test the hypotheses. The results revealed that (1) students who studied in groups performed better than those who studied individually, (2) Biology students performed better than Social Science students and (3) there was an interaction between study techniques and the academic groups.Item Decomposition of sugarcane bagasse by TrichodermaBangilan, Ma. Irish P. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-04)Sugarcane bagasse, an end-product after extraction of the juice of the sugarcane, was composted with the aid of Trichoderma, a compost fungus activator which shortens the decomposition process of farm wastes. Decomposition process was observed through the changes in temperature and substrate consistency. An average of 94 days was noted for a complete decomposition of 900 kg bagasse. Analysis of bagasse compost gave 0.78% nitrogen, 4.94% phosphorus, in the form of P2O5 and 1.55% potassium, in the form of K 2O. It showed that composted bagasse is a good source of phosporus but poor in nitrogen and potassium. The compost, nevertheless, can also be a good soil conditioner.Item Fishermen's Association of Malalison Island: Its role in managing the fishery resourcesBanagodos, June Arthur; Santotome, Jan (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2001-04-01)This study, describes the evolution of FAMI as a fishery association and the role it played in the management of the fishery resources. Objectives of this study are: (1) to describe the emergence of the FAMI organization in the island barangay of Malalison, Culasi, Antique; (2) Document the support it obtained from government and nongovernmental partner organizations (i.e., SEAFDEC, PROCESS and the LGU); (3) to analyze the members’ understanding of, and participation in the collective management of fishery resources in Malalison Island; (4) to identify the changing roles assumed by FAMI members with regards to the sharing of management authority and responsibilities with government and other institutions for the management of fishery resources, and; (5) to analyze the ways by which FAMI activities can further contribute to the local community. FAMI effectively co-manage coastal fishery resources. This organizational activity also helps in the improvement of the living conditions of the small-scale fishers as well as decelerates the rapid depletion of the marine resources. Despite substantial trainings/seminars (pertaining to organizational strengthening, cooperative management, etc.,) FAMI members received from partner organizations, the association has problems on organizational matters, specially when partner organization SEAFDEC AQD formally turned over the full responsibility in managing the fishery resources to FAMI. This problem can be attributed to people’s attitude towards fellow member-fishers. People tend to look at NGOs or development programs as source of grants. The dole-out mentality of the people in marginalized communities such as Malalison is very prevalent. Interest in the program is not on how to sustain their development initiatives but more on how to survive and secure themselves first. The spirit of cooperativism is lost.Item Karyotype analysis of garlic, Allium sativum L. (Alliales; Alliaceae)Bandiola, Ma. Florma A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-03)The C-metaphase count of Allium sativum L. showed a chromosome number of 2n = 14, consisting of six long and eight short somatic chromosomes categorized into three distinct groups: ten m type chromosomes with centromeres at the median region, two sm type chromosomes with submedian centromere and two st type chromosomes with subterminal centromere, Mitotic index for the species was computed at 16.88%.Item Historical analysis of Hippeatrum puniceum (Var) Lam.Bañas, Shirlyn L. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1996-03)A histochemical study Hipppeastrum puniceum, a bulbous plant of Family Amaryllidaceae, was performed to screen the plant for the presence of medically important substances that could be responsible for its curative powers. Results of the analyses showed that the leaf reacted positively to tests for presence of aldehydes, alkaloids, amygdalin, and arbutin; the roots tested positive for aldehydes, alkaloids, amygdalin, lecithin, oxalic acid, saponins, and tartaric acid. The bulb had aldehydes, alkaloids, amygdalin, arbutin, lecithin, saponins and tannins. On the other hand, the leaf, root, and bulb yielded negative results in the tests for presence of presence of citric acid, formic acid, lignin, and phytosterol.Item Antioxidative properties of the fruits of selected tomato (Lycopersicon esculentum Mill.) varietiesBaltazar, Gleza Wae D. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2016-05)This study was conducted to compare the antioxidative properties of greenstage fruits of selected Lycopersicon esculentum Miller varieties (Diamante, Diamante Max, and Pidada) from Barangay Durog, Miagao, Iloilo. The fresh fruit samples were extracted with 95% ethanol. The crude extracts were concentrated using rotary evaporator. The antioxidant activity of the ethanolic fruit extracts was assayed for DPPH radical scavenging activity and the IC50 values were determined. The determination of the phenolic and flavonoid contents was done employing Folin- Ciocalteu method and aluminum chloride spectrophotometric method, respectively. The results show that the fruits of the studied L. esculentum varieties exhibit DPPH radical scavenging activity. The IC50 values, however, differ significantly among the varieties. The IC50 values for Diamante (24.22 ± 1.41 g/L) and Diamante Max (25.08 ± 0.45 g/L) are comparable but are significantly lower than Pidada (29.47 ± 1.33 g/L). These findings imply that Diamante and Diamante Max varieties have stronger antioxidative capacity than the Pidada variety. Moreover, the results indicate that the antioxidative property of L. esculentum is variety-dependent. The results of the determination of the total phenolic content, expressed in mg gallic acid equivalent (GAE) per g fresh sample, are in the order of 0.16 ± 0.02 mg GAE/g for Diamante > 0.15 ± 0.02 mg GAE/g for Diamante Max and Pidada. On the other hand, the results of the determination of the flavonoid content, expressed in μg quercetin equivalent (QE) per g fresh sample, are in the order of 6.31 ± 1.27 μg QE/g for Diamante >6.21 ± 0.88 μg QE/g for Diamante Max > 5.63 ± 0.94 pg QE/g for Pidada. No significant difference in the total phenolic and flavonoid contents was found among varieties. Nonetheless, the detection of phenolics and flavonoids, known antioxidants, supports the present results on the antioxidative property of the fruits of the L. esculentum varieties studied.Item Vulnerability and adaptation to sea level rise of coastal communities in San Jose, Antique an application of contingent valuation methodBaltazar, Christina C.; Mojica, Mariane Daiseree P. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2016-06)San Jose, Antique is a coastal municipality that is already experiencing manifestations of sea level rise, most visibly evident in coastal erosion, increased frequency of flooding, and higher storm surges. Sea level rise is a problem that affects the societal, economic, and environmental condition of coastal communities. It poses threats to life, property, and livelihood thus making these coastal communities vulnerable. To address their vulnerability, planned adaptation is the most practical option. Employing contingent valuation method, this study aims to determine the willingness-to-pay of coastal communities for a planned adaptation program that will address sea level rise. This study also aims to identify the adaptation measures that coastal communities of San Jose, Antique currently employ. Results show that the adaptation measures currently employed by the coastal communities of San Jose are autonomous, such as putting up sandbags, constructing bamboo corrals, and evacuating. These adaptation measures are stopgap solutions, which offer short-term protection only. It was seen, moreover, that overall, participants are willing to pay for a planned adaptation program. This suggests that funds may be raised for a planned adaptation program, which may be done through mobilizing the willingness-to-pay of the people. Measures to tap this potential should be explored by various groups, especially the local government unit of San Jose, Antique.Item Development of a high-performance thin layer chromatography (HPTLC)-densitometric method for the estimation of quercetin and kaempferol in Euphorbia hirta (Tawa-tawa) extractBaladjay, Diane Monique S. (Department of Chemistry, College of Arts and Sciences, University of the Philippines Visayas, 2017-06)A sensitive, fast, efficient, and repeatable high-performance thin-layer chromatographic (HPTLC) method has been developed for simultaneous analysis of quercetin and kaempferol from the extracts of the aerial parts of Euphorbia hirta. In the development of the HPTLC method, different extraction parameters were evaluated and quantification of quercetin and kaempferol in the extract of E.hirta was performed using a densitometric software, Quantiscan™. Among the different combinations of mobile phases used, best separation was achieved in toluene: ethyl acetate: formic acid: methanol (5: 6: 2: 1) solvent system. E.hirta was extracted using the developed extraction method which involves the use of 80% ethanol, 8 minutes of sonication and serial extraction until 3rd extraction. This determined method provides a maximum yield of the compounds at minimum time and cost. The method was also validated for linearity and precision specifically repeatability. The results show that the produced calibration is linear, as supported by the obtained correlation coefficient (r) of > 0.999 and coefficient of determination (R2) of > 0.997. Moreover, the obtained slopes of the calibration curves show that the method is most sensitive towards quercetin and least sensitive to gallic acid. The method was also found out to be repeatable and precise as the %RSD for both the inter-day and intra-day trials obtained a value less than <2%. The present method is being reported for the first time and can be used for routine quality control and quantification of quercetin and kaempferol in various plant samples, extracts, and market formulations.