jannatul ferdous | International University Of Business Agriculture and Technology(IUBAT) (original) (raw)

Papers by jannatul ferdous

Bangladesh Journal of Child Health

Background: Coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 has spread around the world ... more Background: Coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2 has spread around the world and reports of children with COVID-19 are increasing. This study was conducted to assess clinical features and outcome of COVID-19 in children at Evercare hospital Dhaka. Materials & Method: This observational study was conducted on RT-PCR positive COVID-19 admitted children up to 14 years of age from May 2020 to November 2020 at the Pediatric Department of Evercare hospital Dhaka. Data were analyzed after collection of demographic and clinical data of 14 enrolled children. Results: The mean age of the study population was 2.8±3.8 years with male female ratio was 1:1. Two (14.3%) patients had H/O fever in family member & the mean duration between contact & appearance of symptom was 12.5±12.56 days. The major clinical symptom was fever (85.7%). Next most common presenting symptoms were loose stool, vomiting & abdominal pain (42.9%), and convulsion (28.6%). Cough and breathing difficulty w...

Bangladesh Journal of Child Health, 2021

Coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-Co... more Coronavirus disease (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), emerged in China in December 2019 and now has led to a global pandemic. The incidence is lower in neonates. A five days old newborn infant got admitted with history of reluctance to feeding and less movement. On admission, the newborn infant was found to be lethargic, icteric, tachypnoeic, afebrile with SPO2 of 90% throughout his hospital stay. Chest x-ray was normal but RT-PCR for COVID-19 was positive. His mother had symptoms of COVID-19 with positive RTPCR. The neonate was isolated and was treated with antibiotics along with supportive care, then improved gradually and was discharged on day 10 of his age. Suspicion about COVID-19 in newborn infants with prompt identification is essential to limit its transmission in the community. Bangladesh J Child Health 2020; VOL 44 (3) :170-173

A high purity germanium detector (HPGe) which is a low background gammaray spectrometry system, w... more A high purity germanium detector (HPGe) which is a low background gammaray spectrometry system, was used for radioactivity measurement of soils from Habiganj District of Bangladesh to establish a radiation map within this area as a baseline record for future studies. The radioactivity concentration levels of 238U (Raeq), 232Th and 40K were measured in soil samples. From the measured specific activities of the above three natural radionuclides, the radium equivalent activity (Raeq), the external hazard index (Hex), the external gamma absorbed dose rate and the annual effective dose were calculated in this study. The activity concentration levels were found to be in the range of 5 to 19 Bq kg-1 for 238U (Raeq), 7 to 38 Bq kg-1 for 232Th, and 93 to 392 Bq kg-1 for 40K with mean values of 11, 22 and 227 Bq kg-1, respectively. No 137Cs was found in this study. Radium equivalent activity (Raeq), gamma absorbed dose rate, external hazard index (Hex) and annual effective dose values were fo...

Australian Journal of Crop Science, 2013

Potato crop has strict requirement for a balanced nutrient management, without which growth and d... more Potato crop has strict requirement for a balanced nutrient management, without which growth and development are poor and yield is remarkably reduced, continuing with deterioration in soil health. An experiment was conducted to study the effect of organic manure and chemical fertilizers on soil properties and potato yield at Grey Terrace soil (poorly drained, grey and silty) from 2009-2010 and 2010-2011. There were seven treatments as: T1 (Control, native nutrient), T2 (100% recommended dose of fertilizers, RDF), T3 (Farmer’s practice, FP), T4 (Cowdung, CD 6 t ha -1 +70% RDF), T5 (Poultry manure, PM 3 t ha -1 +70% RDF), T6 (CD 6 t h -1 + rest from RDF) and T7 (PM 3t ha -1 + rest from RDF). Yield of potato was significantly (p≤0.05) influenced by the integrated use of organic manure and chemical fertilizers. The highest yield (25.2 t ha -1 ) was achieved in T7, where PM 3 t ha -1 along with reduced rate of recommended dose of chemical fertilizers were applied. The maximum marginal ben...

The radioactivity of environmental samples from sites and suspected of contamination must be anal... more The radioactivity of environmental samples from sites and suspected of contamination must be analyzed before free access is given to the public. Towards this end, plant and corresponding soil samples were collected from two different locations of North- western parts of Dhaka (Savar and Manikganj) and the activity concentrations of natural radionuclides 226 Ra ( 238 U-chain), 228 Ra ( 232 Th-chain) and non-chained 40 K were measured using gamma ray spectrometry. Soils of Savar contained more radioactive 40 K than Manikganj whereas soils of Manikganj contained more 226 Ra and 228 Ra than Savar. The influence of certain soil properties on the activity concentrations and transfer factors (TF) of natural radionuclides were investigated by correlating the observed data with those of soil properties. The activity concentrations of 40 K were much higher than those of 226 Ra and 228 Ra in plants for both locations due to higher uptake from soils. The transfer factors for 226 Ra, 228 Ra and ...

Malaysian Journal of Science, 2013

The level of natural radioactivity in soil samples calculated from the Barendra region, Rajshahi ... more The level of natural radioactivity in soil samples calculated from the Barendra region, Rajshahi and the Mining region, Dinajpur was measured and the radiological hazard parameters in both the regions were estimated. The activity concentrations of naturally occurring radioactive materials in the 238 U and 232 Th decay chains and in 40 K were determined by means of a gamma-ray spectrometry system using an HPGe detector in a low background configuration at Atomic Energy Centre, Dhaka. The activity concentrations of 238 U, 232 Th and 40 K found in the present study are compared with the reported values of the Northern region and other districts of Bangladesh and those of other countries of the world. Radiological hazard parameters of the two regions were estimated and compared with the world averages. The natural radioactivity in the Barendra and Mining region poses no threat to general public there. Artificial radionuclide 137 Cs was not found in the soil samples studied.

Australian Journal of Crop Science, 2018

The pot experiment was conducted to assess the effect of organic amendments to improve leaf chlor... more The pot experiment was conducted to assess the effect of organic amendments to improve leaf chlorophyll and water content as well as mineral ions accumulation in BARI soybean 5 under saline condition. Two types of organic amendments i. water hyacinth compost ii. rice husk biochar were mixed in soil at 5 tha-1 and 10 tha-1 of both. Irrigation was done with 50 and 100 mM saline solution from 14 th days after sowing (DAS) to maturity, where control plants were irrigated with tap water. Data on chlorophyll content, exudation rate, relative water content (RWC), water retention capacity (WRC) in leaf were measured at flowering stage as well as Na, K, Ca, Mg and Na: K ratio in leaf and stem were also recorded at harvest. Results revealed that salinity decreased chlorophyll content, exudation rate, relative water content, water retention capacity and K, Ca, Mg content in leaf and stem of soybean plant. Water hyacinth compost and rice husk biochar had positive effects to mitigate negative effects of salinity on soybean plant. However, rice husk biochar at 5 tha-1 showed best result to mitigate salinity stress on soybean at low salinity (50 mM) condition.

$Research paper thumbnail of {"__content__"=>"A Comparative Analysis of Contamination in Point-of-Drinking and Source Water in a Low-Income Urban Community, Bangladesh.", "i"=>{"__content__"=>"Vibrio cholerae"}}$

Frontiers in microbiology, 2018

Bangladesh is a cholera endemic country with a population at high risk of cholera. Toxigenic and ... more Bangladesh is a cholera endemic country with a population at high risk of cholera. Toxigenic and non-toxigenic () can cause cholera and cholera-like diarrheal illness and outbreaks. Drinking water is one of the primary routes of cholera transmission in Bangladesh. The aim of this study was to conduct a comparative assessment of the presence of between point-of-drinking water and source water, and to investigate the variability of virulence profile using molecular methods of a densely populated low-income settlement of Dhaka, Bangladesh. Water samples were collected and tested for from "point-of-drinking" and "source" in 477 study households in routine visits at 6 week intervals over a period of 14 months. We studied the virulence profiles of positive water samples using 22 different virulence gene markers present in toxigenic O1/O139 and non-O1/O139 using polymerase chain reaction (PCR). A total of 1,463 water samples were collected, with 1,082 samples from point...

Frontiers in public health, 2017

Vibrio cholerae O1 and O139 has been known for its ability to cause epidemics. These strains prod... more Vibrio cholerae O1 and O139 has been known for its ability to cause epidemics. These strains produce cholera toxin which is the main cause of secretory diarrhea. V. cholerae non-O1 and non-O139 strains are also capable of causing gastroenteritis as well as septicemia and peritonitis. It has been proven that virulence factors such as T6SS, hapA, rtxA, and hlyA are present in almost all V. cholerae strains. It is imperative that viable but non-culturable cells of V. cholerae are also detected since they are also known to cause diarrhea. Thus, the aim of this study was to develop an assay that detects all V. cholerae regardless of their serotype, culturable state, and virulence genes present, by targeting the species specific conserved ompW sequence. The developed assay meets these goals with 100% specificity and is capable of detecting as low as 5.46 copy number of V. cholerae. Detection is rapid since neither lengthy incubation period nor electrophoresis is required. The assay had ex...

Research Journal for Veterinary Practitioners, 2016

The present study was conducted to determine the clinical prevalence of myiasis in cattle and goa... more The present study was conducted to determine the clinical prevalence of myiasis in cattle and goats at three veterinary hospitals of Chittagong and Cox's Bazar district, Bangladesh. During the study period overall 2270 cases were observed of which 91 cattle and goats were affected with myiasis. The disease was diagnosed by their clinical history and signs. By using a structured questionnaire several factors like rearing system, species, breed, age, sex and predisposing factors, body part affected and antimicrobials used to treat myiasis wound of each individual case were recorded and subsequently analyzed. The overall proportionate prevalence of myiasis was 4.09% of which 1.67% (n=38) in cattle and 2.42% (n=55) in goat whereas proportionate prevalence in Patiya, Ruma and SAQTVH was 5.52% (N=670), 3.65% (N=1150) and 2.55% (N=550). Younger goat less than 1 year of age had 34 (71.4%) prevalence along with a semi-intensive rearing system 38 (69.09%) showed significantly highest infestation rate. In case of cattle the highest prevalence was found in cross breed 18 (56.2%) but 23 (41.82%) in case of Jamunapari breed of goat. Frequency of myiasis was higher in the vagina (13.99%) than other body regions and the most common predisposing factors were diarrhoea (17%), parturition (12%) and omphalitis (15%). Hematological parameters revealed that eosinophils were the predominated circulation cells. During the treatment of myiasis wound of cattle and goats penicillin and streptomycin combination was used in maximum 38 (40.86%) cases. These findings bring out the wound healing approach, management and treatment of myiasis in cattle and goat within different topography in Chittagong, Bangladesh.

World Journal of Nano Science and Engineering, 2015

Iron-based amorphous alloys have attracted technological and scientific interests due to their ex... more Iron-based amorphous alloys have attracted technological and scientific interests due to their excellent soft magnetic properties. The typical nanocrystalline alloy with the composition of Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 known as FINEMENT has been studied for structural properties analysis. Recently, it is found that after proper annealing the amorphous alloy like Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 has a transition to the nanocrystalline state, thus exhibiting good magnetic properties. The alloy in the form of ribbon of 10 mm width and 25mm thickness with the composition of Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 was prepared by rapid quenching method. The prepared ribbon sample has been annealed for 30 min in a controlled way in the temperature range 490˚C-680˚C. By analyzing X-ray diffraction (XRD) patterns, various structural parameters such as lattice parameters, grain size and silicon content of the nanocrystalline Fe(Si) grains, crystallization behavior and nanocrystalline phase formation have been investigated. In the nanocrystalline state, Cu helps the nucleation of α-Fe(Si) grains while Nb controls their growth, Si and B has been used as glass forming materials. Thus on the residual amorphous, the nanometric Fe(Si) grains develops. From broadening of fundamental peaks, the optimum grain size has been determined in the range of 7-23 nm.

Journal of Scientific Research, 2015

The main objective of this study is to determine the Gross alpha and gross beta radioactivity in ... more The main objective of this study is to determine the Gross alpha and gross beta radioactivity in environmental sample. Thirty samples of soil, water and vegetable were randomly collected from the different locations of Bheramara and Ishwardi near the proposed Rooppur Nuclear Power Plant area, Kushtia and Pabna, Bangladesh. The Gross Alpha activity under investigation ranges from 1.13 to 5.66 Bq kg-1 with an average of 2.78±0.16 Bq kg-1 for soil sample, 0.45 to 1.36 mBq L-1 with an average of 0.91± 0.18 mBq L-1 for water sample, and 0.23 to 1.81 Bq kg-1 with an average of 1.0 ±0.11 Bq kg-1 for vegetable sample. The Gross Beta activity under investigation ranges from 30.74 to 132 Bq kg-1 with an average of 71.85±1.99 Bq kg-1 for soil sample, 61.49 to 279 mBq L-1 with an average of 175 ±4.02 mBq L-1 for water sample, and 305 to 1676 Bq kg-1 with an average of 930 ±3.27 Bq kg-1 for vegetable sample. This study will help to prepare baseline data for gross alpha and gross beta radioactivity in environmental sample which will be used as finger print for the comparison of radioactivity level. .

IOSR Journal of Humanities and Social Science, 2014

In the recent year poverty alleviation has become one of the burning issues worldwide. A systemat... more In the recent year poverty alleviation has become one of the burning issues worldwide. A systematic development of a nation mainly depends on the proper alleviation of poverty. For this reason poverty alleviation have become global challenges, especially in the developing country like Bangladesh. The micro credit program is playing a vital role in the poverty alleviation. In parallel of government of a country, many NGOs and economical institutions have initiated different activities on the basis of Microcredit programs to alleviate the poverty. Therefore, the objective of this study is to show how micro credit works to improve the quality of poor targeted groups and reduce poverty and how it affects the living standard of the poor people in the study area. Several micro credit institutions are working in the study area. Grameen Bank, BRAC, ASA, are some of the most prominent of them. These institutions are working tremendously for the empowerment, poverty reduction and improvement of living standards for the poor people in the study area. However, the objective of this paper is to analyzethe potential contribution of NGOs and the role of micro credit more generally, to economic development, poverty alleviation and constraints inhibiting their future development in Bangladesh.

Bangabandhu Sheikh Mujib Medical University Journal, 2010

Osteoarthritis of the knee is one of the common disability among our population specially elderly... more Osteoarthritis of the knee is one of the common disability among our population specially elderly people both in male and female. It is one of the major causes of disability specially in lower extremity. 1 The condition is more common in women and is associated with overweight. 2 The role of physical activity both in working and leisure time is one of the risk factor in the development of knee osteoarthritis. 3 Osteoarthritis is characterized clinically by pain, remodelling of joint contour and limitation of motion. Diagnosis of osteoarthritis is based on X-ray evidence of joint: Narrowing of joint space with subchondral sclerosis, marginal Osteophyte and sharp intercondylar imminence. 4 Treatment of osteoarthritis typically consists of some combination of rest, exercise Program, medications and full explanation of the nature of OA (with or without support literature). 5 For those with severe arthritis of knees, total knee arthroplasty provides a possible eventual solution. 6 It is well known that no specific treatment is appropriate for degenerative arthritis, but physical management along with medication is important for treating this disease. 7 Management of Knee Osteoarthritis There is no-one specific treatment program for patients with osteoarthritis. The treatment must be individualized

Journal of Chemical Engineering, 2014

This paper represents an attempt that was made to prepare Biodiesel from a non-edible source, Aph... more This paper represents an attempt that was made to prepare Biodiesel from a non-edible source, Aphanamixis Polystachya (Pitraj). Oil was extracted from the seed by mechanical press method. Various properties of raw oil such as viscosity, Free Fatty Acid (FFA) content, specific gravity, saponofication value etc. were measured by standard methods. FFA content of raw oil was found higher, so the acid catalysed two step method, acid catalysed esterification followed by base catalysed transesterification, was studied. Various reaction parameters such as oil to methanol ratio, catalyst wt%, reaction time and temperature were optimized for both esterification and transesterification reaction. 1H NMR of prepared biodiesel and raw oil was studied which confirms the conversion of oil to biodiesel. Finally, the various properties of produced Biodiesel, such as viscosity, FFA, specific gravity, iodine value, cetane index, calorific value etc. were measured and compared with biodiesel and petro-d...

Plant Tissue Culture and Biotechnology, 2008

In five cultivated rice varieties e.g., Nonabokra, PNR 381, Taipei 309, Koshika and TKM 11 the re... more In five cultivated rice varieties e.g., Nonabokra, PNR 381, Taipei 309, Koshika and TKM 11 the response in the initiation of callus and its size varied greatly among varieties, salt concentrations (NaCl and Na2SO4) and their interaction. Better regeneration ability of Nonabokra, Koshika and TKM 11 was found to be correlated to small size callus with a high concentration of Na2SO4. The regeneration ability found here was dependent on variety/genotype, callus type and size, source of salt and their concentration. Regeneration ability enhanced three - tenfolds from Na2SO4 stressed callus compared to the control i.e. without Na2SO4. Vigorous rooting was also observed in the regenerated plants obtained from the calli induced in the medium containing Na2SO4. In NaCl supplemented medium, on the other hand, regeneration and rooting ability were poor.Key words: Rice varieties, Regeneration efficiency, Shoot regenerationDOI = 10.3329/ptcb.v16i1.1105Plant Tissue Cult. & Biotech. 16(1): 45-52, ...

Journal of Bangladesh Academy of Sciences, 2014

Regioselective pentanoylation of methyl 4,6-O-(4-methoxybenzylidene)-?-D-glucopyranoside by the d... more Regioselective pentanoylation of methyl 4,6-O-(4-methoxybenzylidene)-?-D-glucopyranoside by the direct acylation method provided the methyl 4,6-O-(4-methoxybenzylidene)-2-O-pentanoyl- ?-D-glucopyranoside in good yield. A number of 3-O-acyl derivatives of this 2-O-pentanoylation product were also prepared in order to obtain new compounds and also gather additional information for structure elucidation. The chemical structure of the newly synthesized compounds was characterized by analytical and spectral methods. Synthesized acylated derivatives of Dglucopyranoside were screened for in vitro antimicrobial activities against ten human pathogenic bacteria and four plant pathogenic fungi. The study revealed that the acylated products exhibited moderate to good antimicrobial activities. It was interesting to observe that the selected compounds were more sensitive against fungal phytopathogens than those of the bacterial strains. DOI: http://dx.doi.org/10.3329/jbas.v37i2.17554 Journal of B...

Biodiversity and Conservation, 2011

Bangladesh has been a signatory to the Convention on Biological Diversity (CBD) although implemen... more Bangladesh has been a signatory to the Convention on Biological Diversity (CBD) although implementation of the convention has been poor. We independently assessed the extent to which the program of work (POW) of the CBD has been implemented in Bangladesh by carrying out workshops involving local communities, conservation organizations, universities, and government departments involved in forest conservation. Our analyses indicate that there is little or no understanding of the

Journal of Health, Population and Nutrition, 2012

Worldwide, for an estimated 358,000 women, pregnancy and childbirth end in death and mourning, an... more Worldwide, for an estimated 358,000 women, pregnancy and childbirth end in death and mourning, and beyond these maternal deaths, 9-10% of pregnant women or about 14 million women per year suffer from acute maternal complications. This paper documents the types and severity of maternal and foetal complications among women who gave birth in hospitals in Matlab and Chandpur, Bangladesh, during 2007-2008. The Community Health Research Workers (CHRWs) of the icddr,b service area in Matlab prospectively collected data for the study from 4,817 women on their places of delivery and pregnancy outcomes. Of them, 3,010 (62.5%) gave birth in different hospitals in Matlab and/or Chandpur and beyond. Review of hospital-records was attempted for 2,102 women who gave birth only in the Matlab Hospital of icddr,b and in other public and private hospitals in the Matlab and Chandpur area. Among those, 1,927 (91.7%) records were found and reviewed by a physician. By reviewing the hospital-records, 7.3% of the women (n=1,927) who gave birth in the local hospitals were diagnosed with a severe maternal complication, and 16.1% with a less-severe maternal complication. Abortion cases-either spontaneous or induced-were excluded from the analysis. Over 12% of all births were delivered by caesarean section (CS). For a substantial proportion (12.5%) of CS, no clear medical indication was recorded in the hospitalregister. Twelve maternal deaths occurred during the study period; most (83%) of them had been in contact with a hospital before death. Recommendations include standardization of the hospital record-keeping system, proper monitoring of indications of CS, and introduction of maternal death audit for further improvement of the quality of care in public and private hospitals in rural Bangladesh.