72 research outputs found

    Designing a Course with Critical Thinking Focus : Developing Basic English Skills for the Students of Computer Science and Engineering at a Private University of Bangladesh

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    This article suggests some critical thoughts about a four months English course for the students of Computer Sciences and Engineering titled Developing Basic English Skills for general academic and professional purposes The primary aim of this paper is to exhibit how the course can be designed by critical thinking and by following some wellestablished strategies with the help of needs analysis Some new approaches like flipped approach along with lecture and multimedia presentation the class was conducted by the researcher for the group of students from CSE first semester in a private university in Banglades

    Effect of Losartan and Atenolol on heart rate variability in newly diagnosed essential hypertensive patient

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    Background: Essential hypertension is associated with altered autonomic function. Essential hypertension is treated with drugs which modify the sympatho-parasympathetic balance. Losartan (angioteosin II receptor blocker) and atenolol (beta blocker) is commonly used antihypertensive drugs.Objective: To evaluate the effect of antihypertensive drugs on heart rate variability (HRV) in patients with essential hypertension.Methods: This prospective observational study was carried out in the Department of Physiology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Shahbag, Dhaka from July 2012 to June 2013 on 120 newly diagnosed hypertensive patients without any medication (group B, age 30-55 years). They were selected from the Out Patients Department (OPD) of cardiology, BSMMU, Dhaka. Age, sex and BMI matched 60 apparently healthy norrnotensive subjects were also studied as control (group A). Based on treatment, these study subjects were divided into two groups (BI and B2). Group B1a included 60 patients received Josartan 50 mg daily and B2a included 60 patients received atenolol 50mg daily. They were observed once before the treatment (B1a & B2a), after 3 months medication (B1b & B2b) and after 6 months medication (B1c & B2c). For assessing HRV, Mean heart rate, Mean R-R interval, Max/Min R-R interval, SDNN, RMSSD were recorded by a polyrite. Data were compared among before treatment, after 3 months treatment and after 6 months treatment. For statistical analysis ANOVA, independent sample't' test and paired sample 't' test were performed. Results: Mean resting pulse rate, mean heart rate, systolic blood pressure, diastolic blood pressure were significantly higher and mean R-R interval, Max/Min R-R interval, SDNN, RMSSD were significantly lower in newly diagnosed hypertensive patients in comparison with that of healthy normoten­sive subjects and after treatment. Jn both groups SDNN, RMS SD, mean R-R interval were found significantly higher after 6 months of treatment compared to their values after 3 months treatment. Again these values were found close to the values in normotensive subjects. In addition, mean heart rate was found significantly lower in atenolol treated patients than those of controls. Again in atenolol group these values were found significanLly higher than the corresponding values in losartan treated patients after 6 months treatment. Conclusion: Reduced cardiac vagal tone occurs in newly diagnosed hypertensive patients which is improved by both losartan and atenolol and in particular atenolol was found more effective

    Allelopathic Studies on Milk Thistle (Silybum marianum)

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    Declining crop yield due to weeds and their resistance to herbicides are major constraint for successful crop productions. Milk thistle (Silybum marianum) is common weed species in Australian cropping rotation. Allelopathic potentiality of milk thistle on different crops has been documented sporadically, but there is no literature on about ryegrass and canola. Therefore, a laboratory based allelopathic extracts bioassay was conducted. The hot water extracts was prepared from milk thistle plant parts added into water with ration of 1: 10 (plant sample: distilled water) where mixture was heated 10 minutes. After heat treatment samples was immediately sieved and centrifuged and the resulted solution was treated as 100% concentration. Separately, to get the fresh water extract plant sample was added into water (1:10) and kept 24 hours in room temperature. After 24 hours, the sample was sieved and centrifuged and collected samples result was treated 100% concentrations. To obtain 50% concentration, both hot and fresh samples were diluted with distilled water. Therefore the experiment was conducted with five different treatment concentrations (0, 50% hot water extracts, 50% fresh water extracts, 100% hot water extracts and 100% fresh water extracts). The experiment was comprised with RCBD design with three replications under control conditions. During experimental period the allelopathic effects of donor species on germination and seedling growth of ryegrass and canola was observed. Results shows, germination and seedling growth of both receiver species are inhibited by milk thistle extracts. Extracts from fresh water at 100% was more toxic to receiver species followed by 50% concentration of fresh and 100% from hot water extracts. This concentration reduced the root, shoot growth of ryegrass and canola 84.971%, 84.269% and 89.898%, 87.394%, respectively. The result also revealed that allelopathic pattern of hot water extracts was same however; it is less toxic to both receiver species. DOI: http://dx.doi.org/10.3329/ijarit.v2i1.14007 Int. J. Agril. Res. Innov. & Tech. 2 (1): 62-67, June, 201

    Overexpression of microRNA-542-3p attenuates the differentiating capacity of endometriotic stromal cells.

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    Endometriosis is defined as the presence of endometrial glandular and stromal cells outside of the uterine cavity. A previous study reported that microRNA (miR)-542-3p plays a critical role in eutopic endometrial decidualization. This study aims to clarify the potential role of miR-542-3p and the target gene,(insulin-like growth factor-binding protein 1), in the impairment of the decidualizing capacity of human ectopic endometrial stromal cells (HEcESCs).In vitro analysis of primary undifferentiated and decidualizing human eutopic endometrial stromal cells (HEuESCs) and HEcESCs was conducted. The primary HEuESCs or HEcESCs were expanded in culture and decidualized with 8-bromo-cyclic adenosine monophosphate (8-bromo-cAMP) and medroxyprogesterone acetate (MPA).The morphological and biological differentiating capacities of the HEcESCs were markedly impaired. In contrast to the HEuESCs, the HEcESCs that were treated with the decidual stimulus retained the mesenchymal phenotype and capacity for migration. The down-regulation of miR-542-3p in the HEcESCs treatment with 8-bromo-cAMP and MPA was much weaker than that of the HEuESCs. High expression of miR-542-3p led to a significant decrease in the expression of IGFBP1 in the HEcESCs.Impairment of the differentiating capacity by the overexpression of miR-542-3p could influence the capacity for migration and invasion of endometriotic cells in an ectopic environment.埼玉医科大学平成29年

    SWOT Analysis of Mentees for Productive Mentoring in Tertiary Education: Perspective Bangladesh

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    At the tertiary level, the mentoring involves academic guidance and self awareness . The purpose of this study was to explore how first-semester to eighth semester Bangladeshi  mentees  (students) can be involved in a year-long mentoring program at a private university through the SWOT analysis. Thirty-eight undergraduate Bangladeshi students of a private university were surveyed at the beginning of the productive mentoring program. Findings revealed the majority of  mentees  regarded the mentoring  program as worthwhile and they are very eager to know their strengths, weaknesses, opportunities and   their threats as a positive start. Some first-semester students who were paired with older students had a mixed experience. Implications for mentoring programs using a amalgamation of faculty, staff, and experienced mentors are discussed

    Oxidative stress in patients with rheumatoid arthritis: A cross-sectional study

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    Abstract not availabl

    Response of morphological and biochemical traits of maize genotypes under waterlogging stress

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    Maize (Zea mays L.) is one of the most important cereal crops cultivated around the world. Waterlogging stress is a major production constraint of maize production in rain-fed agricultural systems. The main objective of this experiment was to investigate the effect of continuous waterlogging on morphological and biochemical traits of maize genotypes at the vegetative stage. Ten maize genotypes were treated under no waterlogging (control) and continuous waterlogging of five centimeters depth for 10 days. The treatments were applied to the plants at their 45 days of age. Visual leaf injury scores from Leaf 4 (youngest leaf is the reference point) to Leaf 7 separated tolerant and susceptible genotypes. Waterlogging stress significantly reduced the total number of live leaves and chlorophyll content in leaf tissues in susceptible genotypes. The anatomical study revealed that tolerant maize genotypes produce a large number of aerenchyma cells under waterlogging stress compared to susceptible genotypes. The enzymatic activities of ascorbate peroxidase (APX) and peroxidase (POD) exhibited a greater increase in tolerant genotypes than susceptible genotypes whereas the contents of reactive oxygen species (H2O2) greatly increased in susceptible genotypes than tolerant genotypes under waterlogging stress compared to control. Principal component 2 (PC2) indicated that increasing plant height in the genotypes BHM-14, BHM-13 and BHM-9 was associated with waterlogging tolerance. The findings of this experiment will add value to maize breeding to screen out maize genotypes for waterlogging stress tolerance

    CNOIDAL WAVE SOLUTIONS IN SHALLOW WATER AND SOLITARY WAVE LIMIT

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    Abstract The remaining boundary conditions are also taken from Navier-Stokes equation of motion. Using these boundary conditions, three nonlinear ordinary differential equations are formulated, which can be solved by using series expansion method. We consider that all variations in X is relatively slow and can be expressed in terms of dimensionless variable , h X α where α is a small quantity and h is the trough depth of fluid. Then approaching on series expansion method, two types of nonlinear ordinary differential equations are formulated. Using Jacobi elliptic function, first and second order cnoidal wave solutions have been derived. Then mean value of Jacobi elliptic function and the solitary wave limit of cnoidal wave solutions are also formulated. SHAHANA PARVIN et al. 6
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