Patuakhali Science and Technology University is a government financed public university in Patuakhali, Bangladesh. PSTU has given affiliation to the Barisal Government Veterinary College as its constituent faculty. This is the only science and technological university in Barisal division. Wikipedia.
Islam S.M.A.,Patuakhali Science and Technology University |
Yeasmin S.,Gyeongsang National University |
Islam M.S.,Patuakhali Science and Technology University
Ecotoxicology and Environmental Safety | Year: 2017
The binding affinity of organophosphate hydrolase enzyme (OphB) with soil particles in relation to the isoelectric point (pI) was studied. Immobilization of OphB with soil particles was observed by confocal microscopy, Fourier transform infrared spectroscopy (FT-IR), and Atomic force microscopy (AFM). The calculated pI of OphB enzyme was increased from 8.69 to 8.89, 9.04 and 9.16 by the single, double and triple mutant of OphB enzyme, respectively through the replacement of negatively charged aspartate with positively charged histidine. Practically, the binding affinity was increased to 5.30%, 11.50%, and 16.80% for single, double and triple mutants, respectively. In contrast, enzyme activity of OphB did not change by the mutation of the enzyme. On the other hand, adhesion forces were gradually increased for wild type OphB enzyme (90 pN) to 96, 100 and 104 pN for single, double and triple mutants of OphB enzyme, respectively. There was an increasing trend of binding affinity and adhesion force by the increase of isoelectric point (pI) of OphB enzyme. © 2017 Elsevier Inc.
Amin M.N.,Patuakhali Science and Technology University |
Kroeze C.,Wageningen University |
Strokal M.,Wageningen University
Marine Pollution Bulletin | Year: 2017
Many people practice open defecation in south Asia. As a result, lot of human waste containing nutrients such as nitrogen (N) and phosphorus (P) enter rivers. Rivers transport these nutrients to coastal waters, resulting in marine pollution. This source of nutrient pollution is, however, ignored in many nutrient models. We quantify nutrient export by large rivers to coastal seas of Bangladesh, India and Pakistan, and the associated eutrophication potential in 2000 and 2050. Our new estimates for N and P inputs from human waste are one to two orders of magnitude higher than earlier model calculations. This leads to higher river export of nutrients to coastal seas, increasing the risk of coastal eutrophication potential (ICEP). The newly calculated future ICEP, for instance, Godavori river is 3 times higher than according to earlier studies. Our modeling approach is simple and transparent and can easily be applied to other data-poor basins. © 2017 Elsevier Ltd.
Agency: European Commission | Branch: FP7 | Program: CSA-SA | Phase: INCO.2013-1.6 | Award Amount: 335.55K | Year: 2013
CASCADE aims to provide the foundation for a future INCONET programme targeting South Asian Countries, which will promote bi-regional coordination of Science &Technology (S&T) cooperation, including priority setting and definition of S&T cooperation policies. The objectives of CASCADE, as an 18-month supporting action, are to: compile a regional position paper that identifies global challenges and research priorities; map and develop an inventory of national and regional stakeholders related to global challenges; and, raise awareness on research & innovation priorities for fostering cooperation and towards building mutual understanding on how to address common global societal challenges. CASCADE targets & has the participation of all South Asian countries specified in the Call: Afghanistan, Bangladesh, Bhutan, Maldives, Nepal, Pakistan and Sri Lanka. The project comprises five work packages (WP). WP1 will, coordinate the delivery of project outputs, ensure achievement of anticipated outcomes, and develop and manage project infrastructure. WP2 will produce national (Afghanistan, Bangladesh,Bhutan, Maldives, Nepal, Pakistan and Sri Lanka) and regional (Southern Asia) position papers providing a consensus on the key societal challenges in the region linked to Horizon2020. These papers will be used as the basis for WP3: the identification and mapping of key national and regional stakeholders that can influence and address these societal challenges. WP4 will engage these key stakeholders, raise awareness of the potential for EU-Southern Asia cooperation, and stimulate their participation in Horizon 2020. WP5 will use the position papers from WP2 and stakeholder maps from WP3 to compile a policy brief with recommendations to the European Commission on how to promote bi-lateral cooperation with Southern Asia with a view to tackling key societal challenges of mutual interest. WP5 will also promote Southern Asian contacts among major European stakeholders.
Karim M.R.,Henan Agricultural University |
Dong H.,Henan Agricultural University |
Yu F.,Henan Agricultural University |
Jian F.,Henan Agricultural University |
And 6 more authors.
Journal of Clinical Microbiology | Year: 2014
To explore the genetic diversity, host specificity, and zoonotic potential of Enterocytozoon bieneusi, feces from 348 stray and pet dogs and 96 pet cats from different locations in China were examined by internal transcribed spacer (ITS)-based PCR. E. bieneusi was detected in 15.5% of the dogs, including 20.5% of stray dogs and 11.7% of pet dogs, and in 11.5% of the pet cats. Higher infection rates were recorded in the >2-year and the 1- to 2-year age groups in dogs and cats, respectively. Altogether, 24 genotypes, including 11 known and 13 new, were detected in 65 infected animals. In 54 positive dogs, 18 genotypes, 9 known (PtEbIX, O, D, CM1, EbpA, Peru8, type IV, EbpC, and PigEBITS5) and 9 new (CD1 to CD9), were found. In contrast, 8 genotypes, 4 known (D, BEB6, I, and PtEbIX) and 4 new (CC1 to CC4), were identified in 11 infected cats. The dominant genotype in dogs was PtEbIX (26/54). Phylogenetic analysis revealed that 8 known genotypes (D, Peru8, type IV, CM1, EbpC, PigEBITS5, O, and EbpA) and 7 new genotypes (CD1 to CD4 and CC2 to CC4) were the members of zoonotic group 1, whereas genotypes CD7, CD8, and CD9 together with PtEbIX belonged to the dog-specific group, and genotypes CD6 and CC1 were placed in group 2 with BEB6 and I. Conversely, genotype CD5 clustered with CM4 without belonging to any previous groups. We conclude that zoonotic genotypes are common in dogs and cats, as are host-specific genotypes in dogs. Copyright © 2014, American Society for Microbiology. All Rights Reserved.
Chik Z.,National University of Malaysia |
Islam S.M.T.,Patuakhali Science and Technology University
Electronic Journal of Geotechnical Engineering | Year: 2012
This paper shows the criteria of obtaining soil particle size distributions using electrical signal propagation in geotechnical investigations. Soil type identification is the most important requirements in structural engineering, geotechnical engineering, and other division of civil engineering. Generally, soil type is determined through the measurement of particle distribution of soil using sieve tests in geotechnical laboratory. Determination of soil particle size in conventional laboratory tests with sieve analysis is very tedious, slower and costly for the laboratory testing including dry sample collections. In this work, a method and criteria of soil particle size determinations with electrical resistivity is revealed to define different types of soil in the soil site investigations of geotechnical engineering. The performance of the proposed technique is verified with laboratory testing data in soil particle size investigations. The research is most significant as simpler, cost-effective testing in soil particle size identification through electrical signal for a wide range of applications in geotechnical engineering.
Islam S.M.T.,Patuakhali Science and Technology University |
Islam S.M.T.,National University of Malaysia |
Chik Z.,National University of Malaysia
Disaster Prevention and Management | Year: 2011
Purpose: This paper aims to document a case study of a disaster in Bangladesh and the role of an information management system for disaster management planning. Design/methodology/approach: The paper uses a methodology that considers perceptions or constructions - including the role of information systems - to be dependent on the social and cultural structures, which is helpful in reducing destruction in disaster-prone areas. Findings: Advances in information technology in the form of the internet, geographic information systems (GIS), remote sensing, satellite communication, etc. are beneficial in many aspects of the planning and implementation of hazard reduction arrangements. Research limitations/implications: Natural disasters strike countries, both developed and developing, cause enormous destruction and create human suffering, and have negative impacts on national economies. Bangladesh suffers regularly and frequently from disasters like floods, cyclone storms, tidal surges, river bank erosion and earthquakes. Practical implications: Incorporating knowledge of information management system is becoming increasingly important in the derivation of management solutions for disasters. Originality/value: Information systems including GIS, communication technology, other information retrieval and information management systems should be maintained during natural disasters to reduce the cost and time for contingency. In this paper, an attempt is made to highlight the role of information technology in the management of natural disasters in Bangladesh. © Emerald Group Publishing Limited.
Hossen M.J.,Patuakhali Science and Technology University
Livestock Research for Rural Development | Year: 2010
The research was conducted to determine the performance of indigenous chicken through management interventions and compare with traditional husbandry practices. It was found that local chickens of Bangladesh lay average 3 clutches and annual egg production of about 45 in a year, average clutch duration 17 days and yielding 15 eggs in each clutch under scavenging management. About 124 days needs to complete a production cycle. Survivability of village chicks is about 43% and about 30% of them reached the age of production. In this traditional management of local chickens, a rural household earn a minimum bare profit, 47.3 US$ (1 US$=70 BDT) per annum from poultry enterprises. Management interventions like separation of chicks (Weaning) and creep feeding of chicks helps to increase egg production and reduced mortality of local chickens. Weaning increases clutches from 3 to 6 and average production cycle completed with in 68 days. Egg production increases 4egss/clutch and total from 45 to 96 per hen in a year. Creep feeding system of management increases chick's livability from 43% to 87%. These enhance egg production and low mortality of family chickens might contribute to increase income from 47.3 US$ to 342 US$ per annum of the households.
Rabeya S.,Patuakhali Science and Technology University
Mymensingh medical journal : MMJ | Year: 2014
The study was conducted to estimate the serum lipid levels in women using depot medroxyprogesterone acetate (DMPA). A total of 90 Bangladeshi married women of age group 15-40 years attending the Model Family Planning Clinic, Mymensingh Medical College Hospital, Mymensingh, from July 2010 to June 2011. Patients were classified into three groups comprising those using the drug for 3 months (n=30), 1 year (n=30), and 2 years (n=30), respectively, compared to a control group (n=30) of married non-hormonally treated women of similar ages. Their age, weight, height, BP and BMI were recorded; all the subjects were clinically examined. Blood samples were collected for biochemical assay of serum lipid profiling parameters, such as total cholesterol, HDL-C, TAG and LDL-C. Data were collected and processed according to the design and objectives of the study. A significant (p<0.01) decrease in serum total cholesterol was observed up to 1 year of using DMPA, but a sharp increase was observed in 2 years group. Likewise total cholesterol, HDL-C was significantly (p<0.01) decreased in the 1 year group and rapidly increased in the 2 years group. A significant (p<0.01) reduction in TAG level was observed throughout the study tenure when compared with control group. No significant (p>0.05) difference in LDL-C level was observed among the treatment groups. The study concludes that DMPA induced significant alterations in lipid profiling parameters of the studied population and prolong use does not have risk of atherosclerosis; however, further study with a larger sample size is suggested for a general recommendation.
Islam S.,Yokohama National University |
Islam S.,Patuakhali Science and Technology University |
Ahmed K.,University of Dhaka |
Masunaga S.,Yokohama National University
Science of the Total Environment | Year: 2015
Soil pollution, influenced by both the natural and anthropogenic factors, significantly reduces environmental quality. In this study, six hazardous elements (Cr, Ni, Cu, As, Cd and Pb) in 12 different land-use urban soils from Bangladesh were assessed. The ranges of Cr, Ni, Cu, As, Cd and Pb in studied soils were 2.4-1258, 8.3-1044, 9.7-823, 8.7-277, 1.8-80 and 13-842mg/kg, respectively. More than 70% of soil samples exceeded the Dutch target value for Ni, Cu, As, Cd and Pb concentration in soil, indicating a potential risk to the environment. Certain indices, including the enrichment factor (EF), pollution load index (PLI) and contamination factor (Cf i), were used to assess the ecological risk posed by hazardous elements in soils. The mean range of PLI was 1.5-10, indicating progressive deterioration of soil due to metal contamination. However, the Cf i values of Cd ranged from 3.7 to 35 revealed that the examined soils were strongly impacted by Cd. Considering the severity of potential ecological risk for single metal (Er i), the descending order of contaminants was Cd>As>Cu>Pb>Ni>Cr. In view of the potential ecological risk (PER), soils from all land uses showed considerable to very high potential ecological risk. © 2015 Elsevier B.V.
Afrose S.,Shinshu University |
Hossain M.S.,Patuakhali Science and Technology University |
Tsujii H.,Shinshu University
British Poultry Science | Year: 2010
The objective of the study was to investigate the effect of dietary karaya saponin on cholesterol deposition in laying hens. A total of 40 Boris Brown hens were randomly assigned at 20 weeks of age to 4 treatment groups and fed on diets supplemented with 0 (control), 25, 50 or 75mg/kg karaya saponin for an 8-week experimental period. After 8 weeks of dietary supplementation, karaya-saponin-treated groups had significantly lower serum cholesterol (23-0%) and triglycerides but increased high density lipoproteins cholesterol concentration than controls, irrespective of karaya saponin content in the diet. Egg yolk cholesterol and triglycerides were also significantly reduced by dietary karaya saponin. Hepatic cholesterol and triglycerides were significantly reduced by karaya saponin but bile acids concentration in the faeces and liver were significantly increased by karaya saponin. The concentrations of oleic, linoleic and linolenic acids in the yolk were greater in hens receiving karaya saponin than in controls. Karaya saponin significantly increased egg production, feed efficiency and yolk colour compared with controls. Karaya saponin tended to increase egg weight, feed consumption, Haugh units, albumen weight and yolk index. In conclusion, karaya saponin is a potential agent for reducing yolk cholesterol concentration together with an overall increase of production performance and improvement in egg quality. © 2010 British Poultry Science Ltd.