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  • Bangladesh Academy of Sciences  (12)
  • 2015-2019  (12)
  • 1
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    Online Resource
    Morphological mutants of Zoysia japonica Steud. induced by gamma ray irradiation
    Bangladesh Academy of Sciences ; 2019
    In:  Bangladesh Journal of Botany Vol. 48, No. 1 ( 2019-03-31), p. 187-194
    Details
    In: Bangladesh Journal of Botany, Bangladesh Academy of Sciences, Vol. 48, No. 1 ( 2019-03-31), p. 187-194
    Abstract: Study of Zoysia japonica morphological improvement and breeding by induced mutation using gamma ray irradiation was conducted. Mutagenesis by gamma ray irradiation was employed using 0, 20, 40, 60, 80, 100, 120 and 140 Gy to treat 30 single node stolons per treatment. It was demonstrated that single node stolon is suitable for gamma ray irradiation mutagenesis in Z. japonica. It has been identified that 76 Gy as the value LD50 is effective to induce mutagenesis on Z. japonica. Survival rate of Z. japonica stolon was greatly reduced when irradiated with higher dosages. This experiment was repeated using LD50 on 1500 single node stolons. Thirty nine morphological mutants were identified and evaluated. Most of the mutants were semi-dwarf and have horizontal growing pattern with reduced internode length and leaf blade length. The altered morphological traits were stable after third cutting back (M1V3) shown by their morphological performance. Mutation breeding is effective in improving Z. japonica when easily recognized cultivars are needed.
    Type of Medium: Online Resource
    ISSN: 2079-9926 , 0253-5416
    URL: Article
    DOI: 10.3329/bjb.v48i1.47483
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2491223-2
    SSG: 12
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
    FH Potsdam
  • 2
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    Effects of Sodium Chloride Salinity on Water Relations and Ion Accumulation in Two Mungbean Varieties Differing in Salinity Tolerance
    Bangladesh Academy of Sciences ; 2019
    In:  Journal of the Asiatic Society of Bangladesh, Science Vol. 45, No. 1 ( 2019-06-18), p. 45-54
    Details
    In: Journal of the Asiatic Society of Bangladesh, Science, Bangladesh Academy of Sciences, Vol. 45, No. 1 ( 2019-06-18), p. 45-54
    Abstract: Salt tolerance in relation to water status and plant nutrients of two mungbean varieties, BARImung 2 (salinity sensitive) and BUmung 2 (salinity tolerant) was evaluated. The seeds were grown in pots and treated with NaCl levels of 0 (control), 100 and 200 mM. Different parameters related to water relations as well as mineral nutritients were measured. The exudation rate and relative water content were decreased but water saturation deficit was increased by salinity in both the varieties. In BARImung 2 plants, the exudation rate and relative water content were lower but water saturation deficit was higher than those in BUmung 2 at both 100 and 200 mM NaCl levels. Salinity also influenced the accumulation of Na, K, Ca and Mg in leaves, stems and roots of the two said mungbean varieties. Sodium accumulation was inceseased in all the plant-parts of both the varieties in the order of stem 〉 root 〉 leaf but in BUmung 2 the accumulation was lower than that of BARImung 2 except in root. Potassium accumulation deceresed in all parts of both the mungbean varieties but that was lower in BUmung 2 than that of BARImung 2. The contents of Ca and Mg in all the plant-parts increased more in BUmung 2 than those of BARImung 2 with the increase of salinity levels. All these results indicated that high salt tolerance in BUmung 2 was associated with its better water status, more or less uniform mineral nutrient (Ca and Mg) distribution in different plantparts than that in BARImung 2. Asiat. Soc. Bangladesh, Sci. 45(1): 45-54, June 2019
    Type of Medium: Online Resource
    ISSN: 2408-8676 , 1016-6947
    URL: Article
    DOI: 10.3329/jasbs.v45i1.46569
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2019
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  • 3
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    D-erythro-Sphingosine and Pregnenolonesulphate activate TRPM3 channels synergistically in INS- 1E cells
    Bangladesh Academy of Sciences ; 2017
    In:  Bangladesh Journal of Medical Science Vol. 16, No. 1 ( 2017-01-16), p. 98-106
    Details
    In: Bangladesh Journal of Medical Science, Bangladesh Academy of Sciences, Vol. 16, No. 1 ( 2017-01-16), p. 98-106
    Abstract: Background: A group of ion channels have recently been studied to understand the pathogenesis of diabetes. The transient receptor potential (TRP) channels are thought to be involved in many cellular functions. TRPM3, a member of the melastatin-like transient receptor is mainly expressed in human kidney and brain. It is also expressed in human pancreas. Therefore, it is desirable to find compounds able to induce an increase of intracellular calcium([Ca2+]i) in pancreatic ? cells thereby trigger insulin secretion.Aims: The aim of the study was to confirm whether D-erythro- Sphingosine and Pregnenolonesulphate activates TRPM3. Another aim was to investigate whether pancreatic ? cells express TRPM3-channels. INS-1E cells were used as a model of ?cells for [Ca2+] i measurement.Results: Application of endogenous neurosteroidpregnenolonesulphate (35 µM) led to a rapid Ca2+ influx in INS-1E cells and pancreatic beta cells. When PS was applied in the absence of extracellular Ca2+ the [Ca2+]i response to PS was completely lost. The increase in [Ca2+] i induced by PS was inhibited by cholesterol.Western blot data identified a protein reacting specifically with polyclonal antibodies for TRPM3.Conlusion: Our results demonstrate that both pancreatic ?cells and INS-1E cells express functional TRPM3-channels and both SPH and PS are TRPM3 agonists.Bangladesh Journal of Medical Science Vol.16(1) 2017 p.98-106
    Type of Medium: Online Resource
    ISSN: 2076-0299 , 2223-4721
    URL: Article
    DOI: 10.3329/bjms.v16i1.31140
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2017
    detail.hit.zdb_id: 2548724-3
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
    FH Potsdam
  • 4
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    Factors Associated with Maternal Deaths in District and Upazila Hospitals of Bangladesh
    Bangladesh Academy of Sciences ; 2017
    In:  Bangladesh Journal of Obstetrics & Gynaecology Vol. 31, No. 1 ( 2017-10-12), p. 16-22
    Details
    In: Bangladesh Journal of Obstetrics & Gynaecology, Bangladesh Academy of Sciences, Vol. 31, No. 1 ( 2017-10-12), p. 16-22
    Abstract: Objective(s): Aim of the study was to use death review to explore medical causes and three delay causal factors responsible for maternal deaths in district or below level health facilities of Bangladesh.Methods: Government health workers conducted facility based death review in 56 maternal deaths occurred during 2010-2012 in four district and five upazila (EmONC) health facilities of Bangladesh. The data was analyzed to assess the causal relationship between the medical causes and the three delays factors in maternal mortality.Results: Majority of the mothers died was young (89.3%; below age 30 years) and died during first pregnancy (78.6%) and postpartum period (71.4%). Postpartum hemorrhage and preeclampsia-eclampsia were the foremost causes of maternal deaths at district level facilities of Bangladesh. Seventy two percent of them arrived the hospitals in a travel time 〈 2 hour from home or first care-centre when 88% of cases had an unstable general condition. 72% of them received treatment within one hour of admission in the hospital. The patients records reflected that only a few patients received life-saving interventions like blood transfusion, fundal message, and/or oxytocic in postpartum haemorrhage or magnesium sulphate in eclampsia. The study also observed a poor documentation in all the facilities, which was a challenge for death review.Conclusions: The study suggested improving quality of care and increasing availability of skills to manage the complicated cases in district and below level EmONC hospitals with focused interventions for postpartum haemorrhage and preeclampsia-eclampsia. The facility death review will be useful in identifying causal factors, the third delay factors and service gaps and to respond accordingly to avert similar deaths.Bangladesh J Obstet Gynaecol, 2016; Vol. 31(1) : 16-22
    Type of Medium: Online Resource
    ISSN: 2408-8404 , 1018-4287
    URL: Article
    DOI: 10.3329/bjog.v31i1.34271
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2017
    detail.hit.zdb_id: 2573888-4
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
    FH Potsdam
  • 5
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    Nutrient uptake by plants from different land types of Madhupur soils
    Bangladesh Academy of Sciences ; 2016
    In:  Bangladesh Journal of Scientific Research Vol. 28, No. 2 ( 2016-02-22), p. 113-121
    Details
    In: Bangladesh Journal of Scientific Research, Bangladesh Academy of Sciences, Vol. 28, No. 2 ( 2016-02-22), p. 113-121
    Abstract: Three different soil series such as Gerua, Kalma and Khilgaon were identified in three different land types (high, medium high and medium low land). Soil and plant samples were collected from each land type following a catena. Soil samples were collected from surface, subsurface and substratum in each soil series and plant samples were collected from each soil series to examine how the soil characteristics affect nutrient uptake by plants. The uptake of N, P, S and Zn increased from Gerua to Kalma soil and decreased to Khilgaon. K uptake increased from Gerua to Khilgaon soils. The concentration of Fe, Mn and Cu decreased at first and then increased that were opposite to the status of N, P, S and Zn. The uptake of P and Mn were positively correlated (r2 = 0.845**, r2 = 0.767*) and the uptake of K and Fe were negatively correlated (r2 = 0.951**, r2 = 0.676*) with the soil nutrients. This indicates the variation in nutrient concentration influenced by different factors in the catena. The uptake of nutrients by plants varied significantly within the catena. Macro and micronutrients were accumulated by the plants and the soils studied in the experiment did not show any nutrient deficiency or any metal contamination.Bangladesh J. Sci. Res. 28(2): 113-121, Dec-2015
    Type of Medium: Online Resource
    ISSN: 2408-8447 , 0253-5432
    URL: Article
    DOI: 10.3329/bjsr.v28i2.26782
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2016
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  • 6
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    Care seeking behaviour of Bangladeshi migrant workers in Sarawak, Malaysia
    Bangladesh Academy of Sciences ; 2019
    In:  Bangladesh Medical Research Council Bulletin Vol. 45, No. 1 ( 2019-06-15), p. 47-53
    Details
    In: Bangladesh Medical Research Council Bulletin, Bangladesh Academy of Sciences, Vol. 45, No. 1 ( 2019-06-15), p. 47-53
    Abstract: Background: Migrant workers are exposed to vulnerable health risks related to occupational safety, infection and personal health risk behaviours. These vulnerabilities, together with low capacity to pay medical care, and poor access to healthcare, can result in unsatisfactory health outcomes. This objective of the study was to determine the pattern of morbidity and the care seeking behaviour of Bangladeshi migrant workers in Sarawak. Methods: This cross-sectional study was conducted among Bangladeshi migrant workers in selected districts in Sarawak, Malaysia. A total of 314 Bangladeshi workers were interviewed by face to face using a pre-designed and validated questionnaire. Simple descriptive analysis was done using SPSS version 22.0. However, to supplement the quantitative findings, field notes were also analysed. Results: The mean (SD) age of the respondents was 35.9 (7.3) years. Most of the workers were engaged in manufacturing job (43%) followed by construction (32.2%) and a variety of job according to the employers' desire (22.9%). The median monthly salary of the workers was MYR 923 with median duration works was 10 years.  One-fourth of the workers (25.5%) had no health insurance, while another one tenth of workers were unaware of health insurance. It was found that 20% had medial ailments in the last two weeks, while 45.2% had physical complaints in the last one month. The most frequent complaints were fever (48.4%) followed by injuries (11.3%) in the last two weeks. About three fifths (57.4% in last two weeks and 60.6% in last one month) visited private health hospitals or clinics for their treatment. Only a few workers visited public hospitals or clinics for their ailments. One-fifth of the workers were self-medicated. While another one tenth of workers visited traditional healer for their ailments. Qualitative analysis revealed a high cost and no scope of bargain as factors which discourage them to take treatment from public hospitals or clinics. The majority of migrant workers in this study sought healthcare when they fell ill. Conclusion: However, knowledge about health-related insurance was poor and low wage might be significant issues in accessing health care services. The study concluded that workers’ friendly health policy could be instituted for the welfare of the foreign workers’ despite of their awareness of local health services. Bangladesh Med Res Counc Bull 2019; 45: 47-53
    Type of Medium: Online Resource
    ISSN: 2224-7238 , 0377-9238
    URL: Article
    DOI: 10.3329/bmrcb.v45i1.41808
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2019
    detail.hit.zdb_id: 2491184-7
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    BTU Cottbus
    Wissenschaftspark Albert Einstein
    EUV Frankfurt
    TH Wildau
    FH Potsdam
  • 7
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    Hydrodynamic Mixed Convection in a Lid- Driven Porous Square Cavity with Internal Heat Generating Elliptic Block
    Bangladesh Academy of Sciences ; 2018
    In:  GANIT: Journal of Bangladesh Mathematical Society Vol. 37 ( 2018-02-20), p. 175-183
    Details
    In: GANIT: Journal of Bangladesh Mathematical Society, Bangladesh Academy of Sciences, Vol. 37 ( 2018-02-20), p. 175-183
    Abstract: Hydrodynamic mixed convection in a lid-driven porous square cavity with internal heat generating elliptic block is numerically simulated in this paper by employing finite element method. The working fluid is assigned as air with a Prandtl number of 0.71 throughout the simulation. The top lid moves left to right at a constant speed (U0)with cold temperature and while the bottom lid moves right to left at a constant speed (−U0) with hot temperature. The left wall is heated while the right wall is linearly heated and heat generating elliptic block is placed at the center of square cavity. The effects of governing parameters in the present study are namely, Rayleigh number Ra, Darcy number Da, Grash of number Gr. The effects of heat generation and the porosity of the medium on the streamlines, isotherms, temperature profiles, velocity field and average Nusselt numbers are presented in graphical and tabular forms and discussed. An optimum combination of the governing parameters would result in higher heat transfer. Moreover, it is observed that both the Darcy number and moving lid ordination have significant effects on the flow and thermal fields in the enclosure.GANIT J. Bangladesh Math. Soc.Vol. 37 (2017) 175-183
    Type of Medium: Online Resource
    ISSN: 2224-5111 , 1606-3694
    URL: Article
    DOI: 10.3329/ganit.v37i0.35735
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2018
    SSG: 17,1
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  • 8
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    Accumulation of Zn, Cu, Fe, Mn and Pb due to brick manufacturing in agricultutral soils and plants
    Bangladesh Academy of Sciences ; 2016
    In:  Dhaka University Journal of Biological Sciences Vol. 25, No. 1 ( 2016-06-28), p. 75-81
    Details
    In: Dhaka University Journal of Biological Sciences, Bangladesh Academy of Sciences, Vol. 25, No. 1 ( 2016-06-28), p. 75-81
    Abstract: Experiment was carried out to assess the concentration of Zn, Cu, Pb, Fe and Mn in agricultural soil and plant near selected brick kilns. Soils and plants samples were collected from four points such as 250, 500, 1000 and 1500 m away from brick kilns. Three metals were found at elevated levels in the soils near brick kilns such as, Pb (92.5 to 214 mg/kg), Zn (86 to 156 mg/kg) and Cu (24.7 to 46.9 mg/kg). It may be caused due to burning of poor quality coal and fire woods. The uptake of heavy metals in the nearest areas (250 m) of the brick kilns was significantly higher than the areas far from the brick production and their concentrations range from 7 to 543 mg/kg for Pb, 23 to 101 mg/kg for Zn, 10 to 41 mg/kg for Cu, 35 to 1309 mg/kg for Fe and 26 to 126 mg/kg for Mn. Results indicated that soils and plants accumulated maximum amount of micronutrients within 500 to 1000 m distance from brick kilns significantly decreased with distance. Iron and manganese were not polluting the soils near brick kilns but affecting the plants. Therefore, it can be suggested that no agricultural crops should be grown within 1000 m distance from a brick kiln.Dhaka Univ. J. Biol. Sci. 25(1): 75-81, 2016
    Type of Medium: Online Resource
    ISSN: 2408-8501 , 1021-2787
    URL: Article
    DOI: 10.3329/dujbs.v25i1.28497
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2016
    detail.hit.zdb_id: 2771701-X
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  • 9
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    Screening of arsenic tolerance in rice at germination and early seedling stage as influenced by sodium arsenate
    Bangladesh Academy of Sciences ; 2016
    In:  Jahangirnagar University Journal of Biological Sciences Vol. 3, No. 1 ( 2016-06-19), p. 17-26
    Details
    In: Jahangirnagar University Journal of Biological Sciences, Bangladesh Academy of Sciences, Vol. 3, No. 1 ( 2016-06-19), p. 17-26
    Abstract: Arsenic contamination in rice would be a serious problem for  uman  ealt . A screening program was conducted at germination and early seedling stage of rice cultivars w ic  were grown under plate culture and  ydroponic culture condition. Five different concentrations of arsenate viz.T1 (1ppm), T2 (3ppm), T3 (6ppm), T4(9ppm), T5 (12ppm) and distilled water (control) were applied on seven cultivars of rice suc  as BR-26, BRRI-28, BRRI-29, BRRI-45, BRRI-50, BR-3 and BR-14.T e germination percentage and tolerant percentage, root lengt  and s oot lengt  and biomass or seedling dry weig t decreased significantly wit  t e increase of arsenic levels.Among seven cultivars, BRRI-29 s owed t e maximum percentage of germination and tolerant percentage, BR-26 produced t e  ig est root lengt  and s oot lengt  to  ig est arsenic concentration (12 ppm) w ereas maximum biomass was obtained for BR-14.Jahangirnagar University J. Biol. Sci. 3(1): 17-26, 2014 (June)
    Type of Medium: Online Resource
    ISSN: 2306-0263
    URL: Article
    DOI: 10.3329/jujbs.v3i1.28273
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2016
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  • 10
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    Problems and prospects of fish nursery operators in Jessore district of Bangladesh
    Bangladesh Academy of Sciences ; 2016
    In:  Asian-Australasian Journal of Bioscience and Biotechnology Vol. 1, No. 3 ( 2016-12-28), p. 429-434
    Details
    In: Asian-Australasian Journal of Bioscience and Biotechnology, Bangladesh Academy of Sciences, Vol. 1, No. 3 ( 2016-12-28), p. 429-434
    Abstract: A study was conducted to know the problems and prospects fish nursery operators in Jessore district. A total of 50 nursery operators (Jessore sadar, Jikhorgasha and Avynagor) were interviewed using a structured questionnaire during March-May 2016. The objective of the survey was to study different aspects on pond area, fingerling rearing status, nursery layer, number of employees, sources of fingerlings, survival rate, fingerlings prices, market system, capital sources, fingerling production, prospects and problems for nursery operators. In survey areas, most of the nursery operators were continued their business in two to five ponds with an average area of 1.25±0.04 ha. In the present study, it was found that 4.5±3.25 persons were associated in each nursery but the permanent manpower was minimal. The total fingerlings production in the selected nurseries were 1685 laks of where silver carp 23.74%, Rohu 20.77%, Catla 19%, Mrigal 14.84%, Common carp 10.68%,  Koi 2.97%, Thai Puti 5.93%, Grass Carp 1.19% and Pangus 0.89%.The survival rate were 70-80%. Average price of Indian major carps- were Tk. 350 to 500, Chinese carp were Tk. 200 to 400, Thai sharpunti were 350-400 and Pungus were Tk. 400-500 fingerlings/ kg. In the study area, nursery operators were faced various  problems such as lack of capital (21.25%), diseases problem (19.75%), high lease value (15.00%), shortage of water (5.00%), high price of production inputs (11.00%), flooding (3.00%), terrorism (11.00%), high temperature (3.00%), intense market competition (6.00%) and the lack of policy support (5.00%). Government should take proper care for nursery operators and fish associated communities for the enhancement of fishery production. Asian Australas. J. Biosci. Biotechnol. 2016, 1 (3), 429-434
    Type of Medium: Online Resource
    ISSN: 2414-6293 , 2414-1283
    URL: Article
    DOI: 10.3329/aajbb.v1i3.63924
    Language: Unknown
    Publisher: Bangladesh Academy of Sciences
    Publication Date: 2016
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