Undergraduate Theses
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14583/13
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Item Comparison of direct microscopy and concentration techniques using household bleach for the detection of acid-fast bacilli in sputumBernabe, John Marvin S.; Biaoco, Beverly G.; Castillanes, Melvic A.; Fernandez, Ia Jean F.; Geraldoy, Ruffa V.; Molina, Ryge Albert D.; Pluma, Zyra April D.; Que, Agnes Karen B.; Servidad, Mercy Jeane C.; Tamayo, Kyria Mae Marre P. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2008-03-29)Several published studies have demonstrated that the sedimentation and centrifugation concentration techniques which utilize sodium hypochlorite are more efficient in detecting acid fast bacilli in sputum smears compared to the conventional direct smear method. This study was conducted to (1) compare the proportion of AFB-positive samples by direct microscopy with the household bleach centrifugation concentration technique; (2) compare the proportion of AFB-positive samples by direct microscopy with the household bleach sedimentation concentration technique;(3) compare the proportion of AFB-positive samples by household bleach sedimentation with the centrifugation concentration techniques; and (4) compare the cost of the direct smear method, centrifugation concentration technique, and sedimentation concentration technique for detection of AFB. Sputum specimens were collected from TB-DOTS clinics in Miag-ao and San Joaquin, Iloilo and from Medicus laboratories in Iloilo City. The specimens were then processed through the direct smear method, centrifugation concentration method, and sedimentation concentration method. Out of 174 sputum samples included in this study, results revealed that (1) there was no significant difference in the proportions of AFB-positive slides detected using the direct microscopy and centrifugation concentration technique; (2) there was no significant difference in the proportions of AFB-positive slides detected using the direct microscopy and sedimentation concentration technique; (3) there was no significant difference in the proportions of AFB-positive slides detected using the centrifugation and the sedimentation concentration techniques; and (4) simple cost analysis of the three methods suggests that the direct smear method is the most cost efficient. The findings indicate that whichever method is used would yield almost the same proportions of AFB-positive slides. Internal quality control should be maintained throughout the laboratory work to obtain reliable results, as it is the manner of processing that determines the outcome of this study and its validity.Item Karyotype analysis of Kutsay Allium odoratum L. (Alliales: Alliaceae)Bermejo, Jo-am Asis (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1995-05)The C-metaphase count of Allium odoratum revealed that the chromosome number was 2n=32, consisting of the following centromeric groups based on Levan's method of chromosome classification: Group I chromosomes with subterminal centromeres (1 pair); Group II with submedian centromeres (2 pairs), and Group III with median centromeres (13 pairs). The mean total lengths of chromosome ranged from 8.534±0.504-16.624±0.600 μ. Mitotic index for the species was found to be 10.87%.Item Constraints and challenges on the use of emerging media among public high school teachersBenjamin, Louangel Jei D.; Guillen, Kaya A. (Division of Humanties, College of Arts and Sciences, University of the Philippines Visayas, 2022-06)When the COVID-19 pandemic hit the Philippines, the Department of Education implemented distance learning which is primarily module-based to accommodate those that do not have the resources. However, literature has shown that teachers still use emerging media in order to communicate with their students. This study aimed to find out the constraints and challenges experienced when using emerging media during distance learning. It was guided by the social presence theory which centers on the differences in the degree of social presence using telecommunications media and how these differences affect the communication in terms of constraints and challenges. Using quantitative research design and a descriptive survey method, public junior high school teachers were given survey questionnaires to report their experiences on the use of emerging media. The results of this study revealed that emerging media plays a significant role despite distance learning being modulebased. The challenges are caused by the digital divide that led to the lack of budget and technological infrastructure while constraints are more concerned with the intimacy and immediacy depending on where the type of emerging media falls on the social presence scale. Overall, the challenges and constraints encountered by the respondents in using emerging media affects the communication and by extension, the teaching and learning experience in distance learning.Item A comparative study of the microorganisms found in the vaginal flora of pill and non pill user by Pap smearBayate, Aimee Sarena L. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1994-03)This study was conducted to identify and classify the organisms that are present in pill users and non-pill users. It will determine if taking of pills cause changes in the microflora of pill (combined) users and will describe the profile of both pill and non-pill users. The study use 200 prepared smears of the vagina, divided equally to both pill and non-pill users. The slides were collected at Dr. Ricardo Y. Ladrido Memorial Hospital, Lambunao, Iloilo by the family planning physician with the help of the medical technologist. The profile of the patients were also gathered to provide more information about the subjects. The organisms were identified according to their basic morphological characteristic. The results indicate that bacilli which is the normal inhabitant of the vagina is present in 200 samples. Cocci is present in both groups but occure more in women who are pill users. In the parasite group, Trichomonas vaginalis is present in women who are pill user and Candida is present in both groups but occur more in women who are pill users. The test for the estimation of the difference between two proportions reveal that the z values obtained from the experiment falls between the critical region which has a value of 2.58. Such a value indicate that the prevalence of parasites and bacteria are equal among pill and non-pill users.Item Exposure to anti-prostitution campaign and the level of awareness and knowledge of Rizal Estanzuela Residents and sex workers in Iloilo City towards task force on moral and values formation's anti-prostitution campaignBayonita, Erlyn I.; Iniego, Christine Joy V.; Tetosera, Jimma Luz P. (Division of Humanities, College of Arts and Sciences, University of the Philippines Visayas, 2011-03)This study aims to determine the exposure to anti-prostitution campaign and the level of awareness and knowledge of the residents of Rizal Estanzuela and the sex workers in Iloilo City towards Task Force on Moral and Values Formation's anti-prostitution campaign. It also intends to assess the needs of the existing campaign. It follows two sampling procedures: simple random sampling and purposive sampling procedure. The results will then be the basis for the production of the campaign materials. The respondents of this study will consist of both sex workers and residents of Rizal Estanzuela, Iloilo City. Based on the results of the study, the researchers found out that the residents of Rizal Estanzuela have average level of awareness and average level of knowledge towards the campaign. Sex workers in Iloilo City have high level of awareness but have average level of knowledge regarding the said campaign.Item Marketing of milkfish fry in Pandan, AntiqueBayaras, Dinah A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1995-03)This study describes and analyses the marketing, channels, functions/practices, costs, margins, and shares received by each marketing channel, net price of milk-fish fry received by fry catchers, and the problems encountered in the marketing of milkfish fry in Pandan, Antique. Using a separate interview schedule for each kind of respondent, 40 fry catchers are asked about their latest catch on a per-day basis, and the ten middlemen were interviewed about their last transaction/s. Results showed that from the fry catchers, the 4,218 milkfish fry are sold to three types of middlemen: the commissionman, wholesaler and facilitative organization. Fifty-nine percent of the milkfish fry go to the facilitative organisation, twenty-three percent to the commissionman, and eighteen percent to the wholesaler. From the three types of middlemen, only 86 7, of what they’ve purchased were sold of the 3,610 milkfish fry sold, 55% of it go to the wholesaler/retailer. Others go outside of the municipality. All of the wholesaler/retailer purchases go outside of the municipality. The pre-sale practices performed by the fry catchers include gathering, counting, sorting, storing, and transporting, while the middlemen perform counting, sorting, storing, packaging, and transporting. In performing the five pre-sale practices by the fry catchers, the cost of P16.95 is incurred. These are all noncash costs. The cost of P4.0012 for the depreciation cost of marketing investment items and the mortality cost of P12.95 - This includes the allowance for mortality given to the buyer as well as the actual deaths of milkfish fry - are the composition of the marketing costs. The net. The price of milkfish fry is P0.24/piece. But 23% of the opportunity cost of labor was forgone. The pre-sale practices performed by each type of middleman involved in the marketing of milkfish fry accumulated a distinct cost for each type. For the commissionman, he has a total of P87,3367 marketing cost. The wholesaler incurred — 117.996, the facilitative organization has P570.4867, and the wholesaler/retailer has Pl,365.7987. The middleman who has the highest net return in terms of percentage of average revenue is the commissionman (70.62%), followed by the wholesaler (69.76%), then the facilitative organization (57.89%), and the smallest is received by the wholesaler/retailer (37.54). followed by the facilitative middleman (P0.21), and then the In terms of gross margin received by each type of middleman, the highest shareholder is the wholesaler /retailer (P0.28), then the wholesaler (PC, 23), and the commissionman (P0.06). The problems of poor transportation facilities, insufficient capital, communications in pricing, excessive mortality rates, and the absence of a buyer are the bottlenecks in the marketing system. These problems produce a bad outcome for the middlemen by increasing their losses.Item Small farmers' adoption of rice combine harvesters in Binalbagan, Negros OccidentalBayona, Kate Ashley S.; Solano, Mirjana Antoinette (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2024-06)The use of Rice Combine Harvesters (RCH) is currently pushed as part of the country's mechanization program in agriculture. Much of the literature assessing the adoption of RCH only focuses on the tangible determinants of their adoption, but not the in-depth sociological lived experience of farmers following their adoption, including their nuanced rationalization amidst the process. This study investigated the RCH adoption among small farmers in Binalbagan, Negros Occidental, specifically delving into the (1) characteristics of farmers, (2) drivers of RCH adoption, (3) challenges faced during adoption, (4) nature of frequency and consistency of RCH use, and (5) adjustment strategies in using the RCH pursued through descriptive phenomenology and an in-depth interview of 12 participants through purposive sampling. Thematic analysis revealed that the small farmers belong to the early majority adopter category whose adoption is highly facilitated by membership in Irrigators’ Associations and lack of manual laborers. The regularity of their usage also depended on climate, laborers, topography, and farm systems and confronted issues with wastage, additional cost and labor, and field damage to RCH that was mitigated through mediating previous and current farm set ups and maintaining affirmative social relationships within the community. These findings depict the complexities in small fanners’ RCH adoption and the intricacies of their receptivity in each region calling for larger analysis of RCH adoption in the country to know its general status and underscores the need for the implementation and development of national policies like technology diffusion to be contextually sensitive and pro-farmers.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 analysis