Rizal, Philippines
Rizal, Philippines

Bicol University is the premier regional state university in Bicol Region, the Philippines. BU is an International Organization for Standardization Certified University ISO 9001:2008. Administered from Legazpi City, Bicol University offers 67 degree programs spread among 16 academic units: College of Agriculture and Forestry in Guinobatan; College of Education in Daraga,; College of Engineering and College of Industrial Technology in EM's Barrio, also referred as the East Campus; Polangui Campus in Polangui, Albay; Tabaco Campus in Tabaco, Albay; Gubat Campus in Gubat, Sorsogon and across the Legazpi main campus are the Graduate School ; College of Science ; College of Arts and Letters ; College of Nursing ; Open University ; College of Medicine and the Institute of Physical Education, Sports and Recreation . In Daraga campus College of Social science and Philosophy and College of Business, Economics and Management .It is home to topnotchers in the field of Accountancy, Social Work, Engineering and Nursing. It is a top-performing school in Social Work and Accountancy .B.U. is a state university which partly subsidized by the Philippine government. Students of the university and its graduates are referred to as “ Iskolar ng Bayan” . This makes admission into the University extremely competitive. Students who wish to study in the university must take and pass the Bicol University College Entrance Test .The Bicol University College of Education is commended as the The Center of Teaching Excellence by the Commission on Higher Education since 2008. The college is the home of the best and competitive educators in the whole region. Wikipedia.

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Soliman V.S.,Bicol University | Yamada H.,Seikai National Fisheries Research Institute | Yamaoka K.,Kochi University
Journal of Applied Ichthyology | Year: 2010

Juveniles of the spiny siganid Siganus spinus were sampled from three sources in April, May and June 2008 for a study of its early life-history through otolith microstructure analysis. Specimens were obtained from bagnet catches in off-reef sites and seine nets in seagrass beds operating in Lagonoy Gulf, Philippines, and from the guts of skipjack tuna Katsuwonus pelamis caught by hand-line in an offshore area about 72 km east of the mouth of the gulf. The core, hatch ring, first feeding rings, and settlement increment of spiny siganid were identified and their widths measured. Mean daily otolith ages were 20.6, 22.1 and 21.7 of specimens from the gut, off-reef site and seagrass bed, respectively. Sagittae of the youngest (17-, 18- and 19-day-old) specimens from the tuna gut do not have settlement marks. Planktonic larval duration is 17 days. Most settlement (59%) occurred at the 20th increment on the evidence of its highest reduction in width and lessening of opacity. During the settlement process the juveniles swim from the fringing coral reefs to the seaweed beds then finally to the seagrass beds, wherein settlement volume is highest on or about the new moon date. The short, pelagic larval duration and restricted settlement timed on or 1-2 days near the new moon are integral elements in the settlement strategy of the fish. © 2010 Blackwell Verlag, Berlin.

Salvador-Membreve D.M.C.,University of the Philippines at Diliman | Salvador-Membreve D.M.C.,Bicol University | Jacinto S.D.,University of the Philippines at Diliman | Rivera W.L.,University of the Philippines at Diliman
Experimental Parasitology | Year: 2014

Trichomonas vaginalis, the causative agent of trichomoniasis is generally known to inhabit the genitourinary tract. However, several case reports with supporting molecular and immunological identifications have documented its occurrence in the respiratory tract of neonates and adults. In addition, the reports have documented that its occurrence is associated with respiratory failures. The medical significance or consequence of this association is unclear. Thus, to establish the possible outcome from the interaction of T. vaginalis with lung cells, the cytopathic effects of the parasites were evaluated using monolayer cultures of the human lung alveolar basal carcinoma epithelial cell line A549. The possible effect of association of T. vaginalis with A549 epithelial cells was analyzed using phase-contrast, scanning electron microscopy and fluorescence microscopy. MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide), crystal-violet and TUNEL (terminal deoxynucleotidyltransferase-mediated dUTP nick-end labelling) assays were conducted for cytotoxicity testing. The results demonstrate that T. vaginalis: (1) adheres to A549 epithelial cells, suggesting a density-dependent parasite-cell association; (2) adherence on A549 is through flagella, membrane and axostyle (3) causes cell detachment and cytotoxicity (50-72.4%) to A549 and this effect is a function of parasite density; and (4) induces apoptosis in A549 about 20% after 6 h of incubation. These observations indicate that T. vaginalis causes cytopathic effects on A549 cell. To date, this is the first report showing a possible interaction of T. vaginalis with the lung cells using A549 monolayer cultures. Further studies are recommended to completely elucidate this association. © 2014 Elsevier Inc.All rights reserved.

Puzon J.J.M.,University of the Philippines at Diliman | Rivero G.C.,University of the Philippines at Diliman | Serrano J.E.,Bicol University
Environmental Monitoring and Assessment | Year: 2014

Eichhornia crassipes (Mart.) Solms. plantlets were grown in 0.1 and 1.0 ppm treatment solutions of Hoagland’s hydroponic solutions modified with Hg(NO3)2 in order to examine the specific cellular and biochemical mechanisms involved in the tolerance of this plant exposed to mercury. This study assessed the responses of chloroplast pigments, i.e., carotenoids and chlorophylls, and evaluated the enzymatic and nonenzymatic antioxidant systems. Inductively coupled plasma-atomic emission spectrometry (ICP-AES) revealed varying Hg2+ levels in the young and mature leaf tissues, with greater amounts of Hg2+ found in the tissues of the young leaves. Total chlorophyll levels, notably those of chlorophyll a, chlorophyll b, and carotenoids, showed significant elevation in young leaf tissues, while a decrease in their levels was observed in mature leaf tissues in comparison to those of the control plants. These results lend support to the protective role of increased chlorophyll and carotenoid levels in the photosynthetic apparatus of young E. crassipes leaves in the presence of Hg2+. The antioxidant responses of Hg-treated E. crassipes plants were also measured, revealing a highly significant increase in catalase units, catalase and ascorbate peroxidase activities, and mercury-binding thiols in leaves from Hg-treated plants. Moreover, substantial differences in the degree of oxidative injury between the cells in leaves from the control and Hg-treated plants were evidenced by the lipid peroxidation activities monitored. The Hg-treatment-induced significant decrease in malondialdehyde (MDA) levels was observed in 0.1-ppm Hg(NO3)2-exposed plants, while a highly significant increase in MDA levels was noted in 1.0-ppm Hg(NO3)2-exposed plants. The high degree of lipid peroxidation at 1.0-ppm Hg treatment was evidently counteracted by the compensatory protective mechanism brought about by the increased levels in chloroplast pigments and the enhanced activities of the antioxidant systems. E. crassipes responded to mercury treatments by enhancing the synthesis of chlorophyll and carotenoid pigments, enzymatic, and nonenzymatic antioxidant substances, concomitantly increasing the antioxidative activities, thus rendering E. crassipes capable of tolerating Hg-induced stress. The potential of E. crassipes as a phytoremediator is evident. © 2014, Springer International Publishing Switzerland.

Bobiles R.U.,Bicol University | Soliman V.S.,Bicol University | Yamaoka K.,Kochi University
AACL Bioflux | Year: 2015

Coral reef fishes upon settlement undergo morphological changes. Their otoliths or ear bones that provide auditory and balance functions reflect integral changes associated with the transition from pelagic larval to demersal juvenile stages. In the seagrass siganid Siganus canaliculatus, otolith sulcus area grew at a slower rate with sagittal area and body size in both stages. Sulcus area apparently contracted or remained constant during this transition. The one-day difference between sampling of pre-and post-settled fish did not produce significant difference in sulcus area. Sulcus area-to-sagittal area ratio was higher at pre- than at post-settled fish. Sagittal area increased and it grew at faster rate with body size which indicates a shift to improved food availability and less harsher environment for the young fish. Sagittal growth was higher at post- than at pre-settlement. Body size and otolith area were several magnitude larger than sulcus area, thus, they dimensionally outgrew the sulcus. The faster growth of sulcus before settlement suggests the fish depends more on it during this phase than after settlement. © 2015, BIOFLUX SRL. All rights reserved.

Estrellal A.B.,Bicol University | Foronda V.R.,Bicol University | Lirag M.T.B.,Bicol University
International Journal on Advanced Science, Engineering and Information Technology | Year: 2015

A study was conducted to assess the productive capacity of five villages namely Gimagaan, Sevilla, Sogoy, Milagrosa and Saclayan in Sorsogon, Philippines. Specifically, it aimed to assess the productive resource base, resource use and livelihood patterns and provide management prescriptions in the transition of farms into organic agriculture. Sustainable livelihoods analysis and participatory rapid appraisal were the analytical frameworks used in the study. Result of the study revealed that Gimagaan village had the greatest access to asset capitals compared to the other four villages in Sorsogon, Philippines. Gimagaan village highly benefited from the presence of socio-civic and government organizations, residents are more socially inclined and actively involved in the various social activities, have generally good access to their natural resource stocks and infrastructure facilities. On sustainability assessment, results revealed that Milagrosa village was more capable of sustaining management systems of its natural resources, highly resilient against perturbations and had greater chances of improving capacities for social development enterprises. Saclayan village on the other hand, had the lowest access to asset capitals and lowest score in terms of sustainability indicators. Management prescriptions include introduction of farming and fishing technologies which do not require intensive capital; conduct of an in-depth study of fishery-based livelihood project; strengthening the establishment of community-based sanctuaries and mangrove areas; introduction of crop-diversification farming system; and strengthening of the production-market linkage for fishery-based livelihood projects.

Cajuday L.A.,Bicol University | Pocsidio G.L.,University of the Philippines at Diliman
Journal of Medicinal Plants Research | Year: 2010

The effects of Moringa oleifera Lam. on the reproduction in male mice were studied. Twenty four male ICR mice divided equally into four groups were administered with the hexane extract of the leaves of M. oleifera by gavage at doses of 0.5, 5 and 50 mg/30 g BW daily for 21 days. The vehicle corn oil was used as control. Data on body weights, weights of reproductive organs, diameter of seminiferous tubule, stage of maturity, and levels of serum luteinizing hormone and follicle stimulating hormone were obtained and analyzed using one-way ANOVA and Tukey's test. Significant findings were: increased weights of testis (at medium and high doses); epididymis (at all doses); seminal vesicle (at the high dose) and also increased seminiferous tubule diameter (at all doses); increased thickness of epididymal wall (at medium and high doses); higher score for lumen formation (at the high dose) and epididymal maturity (at all doses). No significant effects on the level of the 2 hormones were obtained. © 2010 Academic Journals.

Gonzales A.B.,Bicol University
WIT Transactions on Ecology and the Environment | Year: 2012

Association between air pollution and a multitude of health effects are now well established. Given ubiquitous exposure to some level of air pollution, the attributed health burden can be high, particularly for susceptible populations. In order to perform air quality measurements that are representative of a larger domain or a certain degree of pollution, a study on the air quality condition of the three main cities in the Bicol Region, namely; Legaspi, Naga and Iriga was conducted. The study focused on the parameters in determining air quality conditions. It also sought after the air condition in terms of Total Suspended Particulates (TSP) in the study areas and identified the main sources of the pollutants in the monitoring stations or observatories. The method used the comparative ex-post facto approach to compare and measure the total suspended particulate content in the three cities. The study revealed that the results are within the criteria, which means that the air is not yet dangerous to the health of the residents. Based on the emission inventory conducted by EMB Office from 2005, cars and utility vehicles were identified as the significant contributor of TSP. Burning of wood and dried leaves were primary sources of incomplete combustion in the stations. Carbon monoxide from vehicle exhausts is also a source of pollutant. In the light of the findings of the study, it is recommended that the residents in the subject cities must be aware of the Clean Air Act Program to comply with what they are expected to do, and be able to perform their duty on how to have a clean air and environment. A continuous implementation of the anti-smoke belching campaign as well as an intensified information and education advocacy will definitely help in the attainment of a better air quality in each city. © 2012 WIT Press.

Soliman V.S.,Bicol University | Yamaoka K.,Kochi University
Journal of Applied Ichthyology | Year: 2010

Long-term, excessive harvesting of juvenile fish could lead to significant decline in their settlement strength. In the Philippines, the exploitation of siganid juveniles forms an important traditional fishery but no assessment of the exploitation status of such fishery had been made. The present study is a comprehensive assessment of the siganid juvenile fishery caught by bagnet in Lagonoy Gulf (Southeastern Luzon) by analyzing the temporal trend of their catch and effort statistics. Seven species of siganid juveniles composed the catch, which was dominated by Siganus canaliculatus (78%), S. spinus (8%) and S. argenteus (3%). Total catch 2001 through 2004 was 175 tonnes (t), 154 t, 130 t and 65 t, respectively. The total catch as well as the catch-per-unit-effort declined steeply in these 4 years. Juvenile occurrences or 'runs' were observed throughout the year except in some months in the later quarters of 2003 and 2004. Catches for all 4 years were always highest in April and May, occurring on or about the new moon mostly at the Albay East Coast. Overfishing must be stopped in order to prevent the collapse of this resource. © 2010 Blackwell Verlag, Berlin.

Punay J.P.,University of the Philippines at Diliman | Perez G.J.P.,Bicol University
34th Asian Conference on Remote Sensing 2013, ACRS 2013 | Year: 2013

The use of visible and infrared bands, which have higher spatial resolution, is explored as an alternative to readily available satellite-derived rainfall estimates based on microwave and radar measurements. Data from the Moderate Resolution Imaging Spectroradiometer (MODIS) were used to develop the rainfall retrieval algorithm. Precipitating clouds were defined using the confident cloudy areas derived from MODIS cloud mask (MOD35) While cloud water path (CWP), cloud effective radius (CER), and cloud top temperature (CTT), which are all derived from the MODIS cloud (MOD06) products, were utilized as proxies to formulate rainfall estimate models. Regression analysis was applied using rainfall measurements from selected synoptic weather stations as training dataset. Among the models created, the model that best estimates the rainfall incorporates CWP, CER and CTT. This model has the highest R-square and the least root-mean-square error (RMSE).

PubMed | International Rice Research Institute, University of the Philippines at Los Baños and Bicol University
Type: | Journal: AoB PLANTS | Year: 2014

Crop productivity is largely affected by abiotic factors such as flooding and by biotic factors such as weeds. Although flooding after direct seeding of rice helps suppress weeds, it also can adversely affects germination and growth of rice, resulting in poor crop establishment. Barnyard grasses (Echinochloa spp.) are among the most widespread weeds affecting rice, especially under direct seeding. The present work aimed to establish effective management options to control these weeds. We assessed the effects of variable depths and time of submergence on germination, seedling growth and carbohydrate metabolism of (i) two cultivars of rice known to differ in their tolerance to flooding during germination and (ii) two barnyard grasses (Echinochloa colona and E. crus-galli) that commonly infest rice fields. Flooding barnyard grasses with 100-mm-deep water immediately after seeding was effective in suppressing germination and growth. Echinochloa colona showed greater reductions in emergence, shoot and root growth than E. crus-galli. Delaying flooding for 2 or 4 days was less injurious to both species. Echinochloa colona was also more susceptible to flooding than the flood-sensitive rice cultivar IR42. The activity of alcohol dehydrogenase (ADH) and pyruvate decarboxylase (PDC) in rice seedlings was increased by flooding after sowing but with greater increases in Khao Hlan On compared with IR42. The activity of ADH and PDC was enhanced to a similar extent in both barnyard grasses. Under aerobic conditions, the activity of ADH and PDC in the two barnyard grasses was downregulated, which might contribute to their inherently faster growth compared with rice. Aldehyde dehydrogenase activity was significantly enhanced in flood-tolerant Khao Hlan On and E. crus-galli, but did not increase in flood-sensitive E. colona and IR42, implying a greater ability of the flood-tolerant types to detoxify acetaldehyde generated during anaerobic fermentation. Confirmation of this hypothesis is now being sought.

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