Jessore University of Science & Technology

About: Jessore University of Science & Technology is a based out in . It is known for research contribution in the topics: Adsorption & Population. The organization has 811 authors who have published 974 publications receiving 10471 citations.

Metagenomic diagnosis and pathogenic network profile of SARS-CoV-2 in patients co-morbidly affected by type 2 diabetes

Abstract: BackgroundThe mortality of COVID-19 disease is very high among males or elderly or individuals having comorbidities with obesity, cardiovascular diseases, lung infections, hypertension, and/or diabetes. Our study characterizes SARS-CoV-2 infected patients metagenomic features with or without type 2 diabetes to identify the microbial interactions associated with its fatal consequences. MethodThis study compared the baseline nasopharyngeal microbiome of SARS-CoV-2 infected diabetic and non-diabetic patients with controls adjusted with age and gender. The mNGS were performed using Ion GeneStudio S5 Series and the data were analyzed by the Vegan-package in R. ResultsAll three groups possessed significant bacterial diversity and dissimilarity indexes (p 0.6, p<0.05). The SARS-CoV-2 diabetic group exhibited a significant increase of pathogens (p<0.05) and opportunistic pathogens (p<0.05) with a simultaneous decrease of normal-flora (p<0.05). The molecular docking analysis of Salivaricin, KLD4 (alpha), and enterocin produced by several enriched probiotic strains presented strong binding affinity with Shiga toxin, outer membrane proteins (ompA, omp33) or hemolysin. ConclusionThe dysbiosis of the bacterial community might be linked with severe consequences of COVID-19 infected diabetic patients, although few probiotic strains inhibited numerous pathogens in the same pathological niches. This study suggested that the promotion of normal-flora and probiotics through dietary changes and reduction of excessive pro-inflammatory states by preventing pathogenic environment might lead to a better outcome for those co-morbid patients.

Design and Optimization of AlGaAs/InP Multi-junction Solar Cell

Abstract: A structure for AlxGa1-xAs/InP multi-junction solar cell is proposed by using numerical simulation and the simulation is done with the help of Analysis of Microelectronic and Photonic Structures (AMPS-1D) simulator. The thickness of p-layer of AlxGa1-xAs top cell is varied from 20 nm to 150 nm keeping the n-layer thickness at a constant value of 800 nm. The thickness of n-layer of InP bottom cell is varied from 100 nm to 7000 nm and p-layer thickness is fixed at 200 nm. The band gap of AlxGa1-xAs top cell absorber layer is varied from 1.42 eV to 1.79 eV. The highest power conversion efficiency (PCE) obtained is 35.643% (Voc=2.385 V, Jsc = 15.789 mA/cm2, FF = 0.88). The operating temperature is also varied from 0 °C to 70 °C. We observed that with the increase in operating temperature, the normalized open circuit voltage decreased almost linearly which shows better stability of this proposed multi-junction solar cell.

Climate change influence water use pattern in south-west coastal belt of Bangladesh

Abstract: The southwest part of the coastal area in Bangladesh is to be identified as environmental handicap by both climate change and non-climatic drivers. The water resource sector of the coastal region would most likely be affected significantly due to anticipated changes. The research tries to identify the present status and probable impacts of climate change on changing water use scenario in the transition zone of fresh water and brackish water. Necessary data were collected through questionnaire survey and Focus Group Discussions (FGD) in December, 2012. A total of 100 households were surveyed in the presence of both male and female from five types of drinking water source user namely Protected pond, Pond Sand Filter, Rainwater harvesting, Tube well and Supply water.The survey was conducted to 30 up age group and equal numbers of respondents were selected from each source user. About 49% of peoples are literate and 29% of people are engaged in open water fishing in the Sunderbans. During monsoon 87% of people use rain water for drinking purpose while in other seasons of the year they use pond sand filter and protected pond water while before Aila, Sidr 51% people were use protected pond water. In 90% of household women involved drinking water collection and 65% of households directly consume water from sources. About 80% of households use rain water for cooking in monsoon and 60% of households use pond water in others seasons of the year. Most of the households use pond water for bathing, washing, sanitary purpose, irrigation, fish cultivation and fish processing but most of them use river water for shrimp cultivation. Except rain water harvesting and water supply system most of the water sources in the coastal region were affected by natural disaster at different levels. This study will helps policy makers to find out alternative water source for coastal people. DOI: http://dx.doi.org/10.3329/jesnr.v6i2.22122 J. Environ. Sci. & Natural Resources, 6(2): 217-225 2013

Poly(hydroxamic acid) Functionalized Copper Catalyzed C—N Bond Formation Reactions.

Abstract: Highly active poly(hydroxamic acid) functionalized copper catalysts were synthesized by the surface modification of khaya cellulose through graft copolymerization and subsequent hydroximation processes. The prepared catalysts were well characterized by FTIR, FESEM, HRTEM, ICP-AES, UV-vis and XPS analyses. The supported catalysts effectively promoted C–N bond formation reactions and provided excellent yields of the corresponding products under mild reaction conditions. The catalysts were easy to recover from the reaction mixture and were reused several times without any significant loss of their catalytic activity.

Sustainability assessment of energy systems: Indicators, methods, and applications

Abstract: Sustainability is a concept that has received much attention globally due to its multidisciplinary nature and future goal, that is, sustainable development. This concept relies on three basic pillars: economy, environment, and society. In terms of sustainable energy systems, it can be defined as a system able to meet present demands by maintaining an adequate balance between economy, environment, and society, and at the same time does not deplete the energy resources used, thus ensuring future use. Assessing the sustainability of an energy system requires a number of indicators from the three pillars, and a suitable method. One popular way for evaluating the sustainability status of an energy system is the multicriteria decision analysis (MCDA) method. This chapter provides an overview of the indicators and MCDA methods frequently used in the literature for the sustainability assessment of energy systems. Finally, how to assess the sustainability of an electricity generation system is shown through an application of an MCDA method. This chapter may support selecting the most appropriate MCDA method and related indicators for the energy sector’s sustainability assessment.