American Journal of Pure and Applied Biosciences最新文献_第6页

Meteorological Influences on Seasonal Variations of Air Pollutants (SO2, NO2, O3, CO, PM2.5, and PM10) in the Dhaka Megacity 达卡特大城市大气污染物(SO2、NO2、O3、CO、PM2.5和PM10)季节变化的气象影响

American Journal of Pure and Applied Biosciences Pub Date : 2020-04-03 DOI: 10.34104/ajpab.020.15023

Mir Md. Mozammal Hoque

{"title":"Meteorological Influences on Seasonal Variations of Air Pollutants (SO2, NO2, O3, CO, PM2.5, and PM10) in the Dhaka Megacity","authors":"Mir Md. Mozammal Hoque","doi":"10.34104/ajpab.020.15023","DOIUrl":"https://doi.org/10.34104/ajpab.020.15023","url":null,"abstract":"The study was conducted to evaluate the meteorological influences on seasonal variations of air pollutants load in Dhaka city. In this study, we collect air quality data from Darus-salam Continuous Air Monitoring Station (CAMS) and were analyzed to find out their seasonal trends and relation with meteorological parameters. The highest concentration of the major air pollutants showed high values in the dry season (October-April) (SO2=23.45 ppb, NO2=55.33 ppb, O3=11.17 ppb, CO=3.66ppb, PM2.5=125.66 µg/m3, PM10=219 µg/m3) than those of the wet season (May-September) (SO2=10.26 ppb, NO2=16.36 ppb, O3=2.40 ppb, CO=1.23 ppb, PM2.5=39.65 µg/m3, PM10=76.5 µg/m3). These results indicate that higher pollutants load in winter are associated with large scale polluted air transported from the brick kilns situated in the northern surrounds of the observing station which are also related to lower boundary atmospheric heights during winter. However, a reverse relation between rainfall and atmospheric pollution load throughout the wet season was observed. This finding revealed that the lowest concentration levels of pollutants during the wet season are associated with their atmospheric wash out by precipitation. A strong correlation (R2=0.742) was observed between CO and O3 during the study, which indicates the huge production of an oxidant with increasing CO concentration. Interestingly, O3 showed a positive correlation with NO2 (R2=0.391). This result may indicate that NO2 is the important precursors of O3 in this study. Similarly, CO and NO2 showed good correlation (R2=0.68), indicating that both NO2 and CO are produced from similar pathways of photochemical oxidation of VOC. However, PM2.5 and PM10 concentrations showed decreasing trends with the onset of monsoon, indicating washout of atmospheric dust load through rainfall during the wet season.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"427 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116183696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Prevalence of Anaemia among Pregnant Women in a Rural Area of Bangladesh: Impact of Socio-economic Factors, Food Intake, and Micronutrient Supplementation 孟加拉国农村地区孕妇贫血患病率:社会经济因素、食物摄入和微量营养素补充的影响

American Journal of Pure and Applied Biosciences Pub Date : 2020-01-30 DOI: 10.34104/ajpab.0200107

M. Bashar

{"title":"Prevalence of Anaemia among Pregnant Women in a Rural Area of Bangladesh: Impact of Socio-economic Factors, Food Intake, and Micronutrient Supplementation","authors":"M. Bashar","doi":"10.34104/ajpab.0200107","DOIUrl":"https://doi.org/10.34104/ajpab.0200107","url":null,"abstract":"Anaemia during pregnancy is a major health problem throughout the world. The prevalence of anaemia in pregnancy is 41.8% globally and 46% in Bangladesh. It affects both the mother and the baby simultaneously. Women often become anaemic during pregnancy because the demand for iron is increased due to the physiological need for pregnancy. This cross-sectional study was carried out in Savar Gonoshasthaya Kendra project area in Dhaka district. Ninety-Five pregnant women of different gestational ages were selected purposively. Haemoglobin level was estimated by cyanomeath haemoglobin method in the laboratory of Gonoshasthaya Samaj Vittik Medical College Hospital, Savar. Among 95 pregnant women, 41.1% was in 20-24 years age group. The mean age of the respondents was 23.74 years. In terms of socio-economic status, 54.7% of the respondents came from lower middle-class family. 7.4% of the respondents had no formal education, 54.7% had primary level education and only 6.3% had higher education. Maximum of the respondents (88.4%) were housewife. This study revealed that the prevalence of anaemia among pregnant women was 51.6%. Among 51.6 % of the anaemic respondents, 23.2% were mildly anaemic, 26.3% were moderately anaemic and 2.1% were severely anaemic.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132232671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Physico-chemical Characterization of Kaptai Lake and Foy’s Lake Water Quality Parameters in Chittagong, Bangladesh 孟加拉国吉大港Kaptai湖和Foy湖水质参数的理化特征

American Journal of Pure and Applied Biosciences Pub Date : 2019-11-10 DOI: 10.34104/ajpab.019.01949058

M. Rubel

{"title":"Physico-chemical Characterization of Kaptai Lake and Foy’s Lake Water Quality Parameters in Chittagong, Bangladesh","authors":"M. Rubel","doi":"10.34104/ajpab.019.01949058","DOIUrl":"https://doi.org/10.34104/ajpab.019.01949058","url":null,"abstract":"In order to protect the quality of the environment and human health, freshwater assets are tremendously important in various ways. To ensure the freshwater resources in the Chittagong region of Bangladesh, we have studied the water quality parameters of Kaptai and Foy’s Lake. This research has done based on the essential surface water standard parameters such as pH, temperature, DO, BOD, COD, TDS, TSS, TS, EC, hardness, turbidity, salinity, total alkalinity, total acidity, SO42-, PO43-, NO3--N, NO2-, CO2, and most of the heavy and toxic metals (As, Cd, Cr, Cu, Co, Fe, Pb, Mn, Ni, and Zn) of two lakes namely Foy’s (Chittagong) and Kaptai (Rangamati) Lakes in Chittagong , Bangladesh. The statistical approaches to sampling were utilized for collecting samples. The samples were assembled from ten different locations of each lake. Samples were conserved using a satisfactory preservation procedure. Water samples from the surface-water assets were collected from various locations, and tide conditions and at various seasons for continual monitoring during the hydrological years 2014-2015. The results showed that Kaptai Lake and Foy’s Lake all physicochemical parameters are within the permissible limit of WHO guidelines. The results also supplied data to view, and quantify the enemy of the impact of climate alter on freshwater resources of this region. The outcomes further showed data for water quality of surface-water resources of greater Chittagong zone to match national and international quality for drinking, agricultural, manufacture and livestock requirements. A strategic water quality management plan has been proposed.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134481842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Determination of Antimicrobial Activity of Medicinal Plant Cassia obtusifolia L. (Chakunda) Leaf Extract on Selected Pathogenic Microbes 药用植物决明子叶提取物对部分病原菌的抑菌活性测定

American Journal of Pure and Applied Biosciences Pub Date : 2019-11-06 DOI: 10.34104/ajpab.019.01959069

M. H. Rony

{"title":"Determination of Antimicrobial Activity of Medicinal Plant Cassia obtusifolia L. (Chakunda) Leaf Extract on Selected Pathogenic Microbes","authors":"M. H. Rony","doi":"10.34104/ajpab.019.01959069","DOIUrl":"https://doi.org/10.34104/ajpab.019.01959069","url":null,"abstract":"Pathogenic microorganisms are major health concerns of infectious diseases. In the present study ethanolic and methanolic extracts of Cassia obtusifolia leaves from Kushtia region (Bangladesh) were subjected to evaluate the in vitro microbial activity against six important human pathogenic bacteria viz., Bacillus subtilis (001-1), Sarcina lutea (002-1), Xanthomonas campestris (004-1), Escherichia coli (005-1), Klebsiella pneumonia (006-1) and Pseudomonas sp. (010-1) employing disc diffusion method. The crude methanolic extract of C. obtusifolia produced maximum area of inhibition (14 mm) against S. lutea (002-1) and crude ethanolic extract of C. obtusifolia produced the largest area of inhibition (11 mm) against K. pneumonia (006-1). The MIC values (256 μg/ml, 512 μg/ml) were obtained from the methanolic isolate and ethanolic extract that produced 4 mm and 3 mm area of inhibition against S. lutea (002-1) and K. pneumonia (006-1). The methanol extract showed greater activity than ethanol extract. The most susceptible bacterial strains to ethanol and methanol extracts were S. lutea (002-1) and K. pneumonia (006-1). So, it may be possible that the production of a new antibiotic from C. obtusifolia L. leaf may be recommended for meningitis and pneumonia. The findings of this research suggest that the extracts of C. obtusifolia L. can be a source of natural antibacterial agents with pivotal applications in pharmaceutical companies to control pathogenic bacteria causing severe illness in humans.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134240965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Dengue and Recent Mosquito-borne Viral Fever Outbreak in Bangladesh: Concern, Causes and Control 孟加拉国最近爆发的登革热和蚊媒病毒性热:关注、原因和控制

American Journal of Pure and Applied Biosciences Pub Date : 2019-11-05 DOI: 10.34104/ajpab.019.01944048

Shazeed-Ul-Karim Karim

引用次数: 4

Effect of Plant Growth Regulator on the Growth and High Yield of Heat Tolerant Tomato Variety (Lycopersicon esculentum Mill) 植物生长调节剂对耐高温番茄品种生长及高产的影响

American Journal of Pure and Applied Biosciences Pub Date : 2019-10-31 DOI: 10.34104/ajpab.019.0193043

S. M. Hossain

{"title":"Effect of Plant Growth Regulator on the Growth and High Yield of Heat Tolerant Tomato Variety (Lycopersicon esculentum Mill)","authors":"S. M. Hossain","doi":"10.34104/ajpab.019.0193043","DOIUrl":"https://doi.org/10.34104/ajpab.019.0193043","url":null,"abstract":"An investigation was undertaken with a view to observing the performance of two heat-tolerant varieties of tomato under polytunnel with and without plant growth regulator application during the summer rainy season. The present study was laid out in a Randomized Completely Block Design (RCBD) with three replications. Two heat-tolerant tomato varieties Bangladesh Agriculture Research Institute (BARI) Tomato-4, and BARI Hybrid Tomato-4 with and without plant growth regulator applications were included in this experiment. The larger fruit set percentage (42.52%) was observed from BARI Hybrid Tomato-4 which was also larger in case of pollen viability (42.75%), the figure of fruits every cluster (3.01), figure of fruits every plant (12.70), and yield every plant (460 g). Better yield was showed in spraying of 4-CPA at 40 ppm concentration in respect of percent fruit set (45.38%), figure of fruits every plant (16.45), and yield (39.39 t/ha) under high-temperature condition. In integrate treatment, BARI Hybrid Tomato-4 with 40 ppm 4-CPA performed a significant role in the figure of fruits every cluster (3.41), figure of fruits every plant (22.48), figure of fruits every plot (144.00), yield every plant (621.68 g), yield every plot (15.23 kg) and above all fruit yield (50.57 t/ha). This indicates that there is a bright scope of tomato production during summer through with and without plant yield regulator application, though the application of plant growth regulator had a positive impact on tomato yield.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115716739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Assessment and Biomonitoring of the Effect of Rapeseeds Oil on Wister Rat Organs 菜籽油对大鼠脏器影响的评价与生物监测

American Journal of Pure and Applied Biosciences Pub Date : 2019-08-01 DOI: 10.34104/AJPAB.019.0192029

Imdadul Haque Sharif

{"title":"Assessment and Biomonitoring of the Effect of Rapeseeds Oil on Wister Rat Organs","authors":"Imdadul Haque Sharif","doi":"10.34104/AJPAB.019.0192029","DOIUrl":"https://doi.org/10.34104/AJPAB.019.0192029","url":null,"abstract":"Rapeseed oil is one of the important and cheapest vegetable oil in Bangladesh and many other countries. It is commonly used as cooking oil in Bangladesh particularly in rural areas and also used as other food items. This study evaluated the physiological effects of four type’s rapeseeds namely Mustard (Wild), Mustard (hybrid), Rai (Wild), Rai (hybrid) oil on six strains of bacteria in addition to studying the effects of two varieties of rapeseeds oil Mustard (Wild) and Rai (hybrid) oil on Wistar rat’s organs including liver, kidney, heart and skeletal muscles. Firstly, we examined the effects of these Rapeseeds oil on bacteria and found that these Rapeseeds oils possess antibacterial activities. Six bacterial strains such as B. subtilis, S. lutea, X. campestris, E. coli, K. Pneumonia, P. denitrificans was used to test the effect of these rapeseeds oil and observed that rapeseed oil showed inhibition against tested microorganisms in a concentration-dependent manner. Finally, the effects of oil obtained from these two varieties were investigated after feeding rats for 8 weeks. Male Wistar rats were divided into three groups, each group contains 4 rats. Group A was considered as control diet group, while Group B was mustard (Wild) oil group and Group C was Rai (hybrid) oil group. Group A was containing 0.6 gram oil plus 14.4gm diet. We found that rats of both experimental groups exhibit weight loss, reduction of food efficiency ratio and increase cardiac and hepatic enzymes including CK-MB, ALP, SGPT and SGOT compared to the rats fed controlled diet. Furthermore, we also found that the body weight loss, food efficiency ratio markedly decreased and tested enzymes increased in rats fed Mustard (Wild) oil compared to rat fed Rai (hybrid) oil.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"36 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114094544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

Study on Ambient Particulate Matter (PM2.5) with Different Mode of Transportation in Dhaka City, Bangladesh 孟加拉国达卡市不同交通方式的环境颗粒物(PM2.5)研究

American Journal of Pure and Applied Biosciences Pub Date : 2019-07-15 DOI: 10.34104/AJPAB.019.0191219

M. Hossain, Bangladesh Work for a Better Bangladesh Trust

引用次数: 16

Isolation, Identification, and Antibiotic Sensitivity Pattern of Salmonella spp from Locally Isolated Egg Samples 本地分离鸡蛋样本中沙门氏菌的分离、鉴定和抗生素敏感性模式

American Journal of Pure and Applied Biosciences Pub Date : 2019-03-31 DOI: 10.34104/AJPAB.2019.0111

Md. Atikur Rahman Rokeya Ahmed

{"title":"Isolation, Identification, and Antibiotic Sensitivity Pattern of Salmonella spp from Locally Isolated Egg Samples","authors":"Md. Atikur Rahman Rokeya Ahmed","doi":"10.34104/AJPAB.2019.0111","DOIUrl":"https://doi.org/10.34104/AJPAB.2019.0111","url":null,"abstract":"Salmonella has been found to be the major foodborne disease in the world with a serious public health problem. The presence of any serotype of Salmonella in food under that food unfit for human consumption. Poultry eggs are considered as major sources for these pathogenic microorganisms. The current study was carried out to isolate and identify the Salmonella spp from egg sample collected from different retailer markets and farm of Savar area, Bangladesh. Antibiotic susceptibility test was also done to determine the resistance pattern. A total of 50 poultry eggs were examined. Salmonella spp were isolated by culturing on the selective plate and characterized by biochemical tests. In the present study, the average prevalence of Salmonella was found to be 100% from the outer surface of eggs and 20% from eggs yolk. All identified isolates were tested for antibiotic susceptibility to six commonly used antimicrobials by the disk diffusion technique. The highest percentage of resistance (60%) was found to Chloramphenicol, Ampicillin, Gentamicin, and Tetracycline. Salmonella isolated from egg surface were found more antibiotic resistant than that of egg yolk. The present study suggests that poultry eggs are a potential reservoir of antibiotic-resistant Salmonella.","PeriodicalId":214462,"journal":{"name":"American Journal of Pure and Applied Biosciences","volume":"22 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124791206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 29

Effects of Different Biofertilizer on Soybean (Glycine max) Production 不同生物肥料对大豆(甘氨酸)产量的影响

American Journal of Pure and Applied Biosciences Pub Date : 1900-01-01 DOI: 10.34104/ajpab.021.055059

Md Nazmul Islam, S. Sharmin, Mohammed Ataur Rahman

引用次数: 1