Dhaka University Journal of Biological Sciences最新文献_第9页

Adaptation of the Brain Injury Questionnaire of Sexuality Into Bangla and Initial Findings From a Sample Of Bangladeshi Traumatic Brain Injury Patients 性脑损伤问卷在孟加拉的适用性及孟加拉创伤性脑损伤患者样本的初步调查结果

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57927

Md Shahanur Hossain, G. Powell, M. M. Rahman

{"title":"Adaptation of the Brain Injury Questionnaire of Sexuality Into Bangla and Initial Findings From a Sample Of Bangladeshi Traumatic Brain Injury Patients","authors":"Md Shahanur Hossain, G. Powell, M. M. Rahman","doi":"10.3329/dujbs.v31i1.57927","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57927","url":null,"abstract":"Bangladesh is an over populated country with a high incidence of traumaticbrain injury (TBI) for which neuropsychological services are only just emerging.In this context the present study undertook in a culturally sensitive manner totranslate into Bangla (Bengali) the Brain Injury Questionnaire of Sexuality (BIQS)and to present findings from a sample of TBI patients. Standard proceduresincluding back translation for scale adaptation were followed. The Banglaversion of BIQS (BIQS-B) were applied on 30 TBI and 53 healthy sample. Factorand principle component analysis of the BIQS-B yielded three components as inthe original scale explaining 75.3% of the total variance. Reliability is satisfactory,matching that of the English version. The TBI sample scored lower on the BIQS-Bthan did the healthy controls by virtue of not reporting the positive changes insexuality over time that the health controls reported (means of 43.90 vs 52.02, p <0.001). In a very different culture, the factor structure of the BIQS-B is in factsimilar to the English version and has acceptable reliability and validity, hencecontributing to the goal of improving access to services not just in Bangladeshbut in Bangla speaking minority ethnic groups in other countries. Dhaka Univ. J. Biol. Sci. 31(1): 183-191, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79305083","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: 0

Optimization of Culture Media Ingredient and Inoculum On the Yield of Tubifex Worms at Pilot Scale Level 培养基成分及接种量优化对管形虫中试产量的影响

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57928

Md. Inja-Mamun Haque, M. Hasan

引用次数: 0

Heterosis Analysis in Pumpkin (Cucurbitamoschata Duch. Ex. Poir) 荷兰南瓜杂种优势分析。前女友Poir)。

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57921

Gazi Md Mohsin, Md. Sajedur Rahman Rahman, Farruk Ahamed, -. Md Hasanuzzaman

{"title":"Heterosis Analysis in Pumpkin (Cucurbitamoschata Duch. Ex. Poir)","authors":"Gazi Md Mohsin, Md. Sajedur Rahman Rahman, Farruk Ahamed, -. Md Hasanuzzaman","doi":"10.3329/dujbs.v31i1.57921","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57921","url":null,"abstract":"The research was carried out at Lal Teer Seed Ltd. Gazipur to determine the heterosis of yield and yield contributing traits of pumpkin (Cucurbita moschata Duch. ex Poir.). Six diverse pumpkin parents (viz. CM-1, BARI Mistikumra-1, CM-20 and CM-8) and their 30 F1 hybrids derived from 6X6 diallel including reciprocal were used as research materials. Thirteen genetic parameters [viz. days to first male flower opening, days to first female flower opening, number of flowers (male and female) per plant, fruit length and diameter (cm), fruit weight (kg), flesh thickness (cm), brix (%), number of fruits per plant, number of seeds per fruit, 100-seeds weight (g), yield per plant (kg)] were estimated. The results revealed significantly higher and positive heterosis and expected negative effects for different important characters of pumpkin. The two cross combinations namely; CM-1 × BARI Mistikumra-1 and CM-8 × CM-1 were identified as the promising hybrids which showed the significant higher heterosis, heterobeltiosis and standard heterosis. These finding suggest that cross combinations of indigenous x exotic parents may be beneficial for fruit yield, particularly when used as commercial hybrids. The results showed that these two combinations gave the most promising hybrids (F1), so these two F1 lines were registered in National Seed Board (NSB) of Bangladesh as Hajee F1 and Danesh F1 hybrid varieties.\u0000Dhaka Univ. J. Biol. Sci. 31(1): 117-136, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79102328","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: 0

Isolation and Identification of Pigment Producing Bacteria From the Ratargul Swamp Forest Soil 沼泽森林土壤中产色素细菌的分离与鉴定

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57911

Nafisa Anzum, F. Khan, M. Z. Hossain, M. Islam, M. Saha

{"title":"Isolation and Identification of Pigment Producing Bacteria From the Ratargul Swamp Forest Soil","authors":"Nafisa Anzum, F. Khan, M. Z. Hossain, M. Islam, M. Saha","doi":"10.3329/dujbs.v31i1.57911","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57911","url":null,"abstract":"Pigments are one of the most significant secondary metabolites produced by microorganisms. The aim of the present study was to isolate and identify pigmentproducing bacteria from the Ratargul Swamp Forest (RSF) soil, which is the one and only fresh water swamp forest of Bangladesh. Soil samples were randomly collected from 10 different quadrates (10 m x 10 m) of RSF. The pH values of the soil samples were found to be strongly acidic and ranged between 4.71 and 5.48. Bacterial load of the samples ranged from 1.33×105 to 1.93×108 cfu/g, 6.05×106 to 9.07×107 cfu/g and from 1.16×107 to 1.61×108 cfu/g on nutrient agar (NA), peptone yeast-extract glucose (PYG) agar and Luria-Bertani (LB) agar media, respectively. Interestingly, both the highest and lowest bacterial counts were observed on NA, which was 1.93×108 cfu/g and 1.33×105 cfu/g, respectively. The isolates were found to produce various pigments like yellow, red, dark orange and sweet pink during their colony developments. A total of 71 bacterial isolates were obtained of which 11 were subjected to further study. All the selected bacteria were found to be rod shaped. Out of the 11 isolates, 9 were Gram-positive and 2 were Gramnegative. Provisionally identified potential pigment producing eight bacterial isolates were identified by using molecular marker. Seven of them were matched with their conventional identification up to generic level but conventionally identified Erwinia stewartii was found to be as Aeromonas sobria. Among the 11 isolates, 8 could produce three different types of pigments namely red, yellow and dark orange during in vitro pigment production. The isolated pigment producing bacteria could be used for better biotechnological application.\u0000Dhaka Univ. J. Biol. Sci. 31(1): 1-8, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74935056","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: 2

Changes in Photosynthetic Pigment of Wheat(Triticum Aestivum L. Var. Bari Gom-25) As Affected By Naa and N-Fertilizer Naa和n肥对小麦光合色素的影响

Dhaka University Journal of Biological Sciences Pub Date : 2022-02-10 DOI: 10.3329/dujbs.v31i1.57925

A. G. Adam, N. Jahan, P. Rashid

{"title":"Changes in Photosynthetic Pigment of Wheat(Triticum Aestivum L. Var. Bari Gom-25) As Affected By Naa and N-Fertilizer","authors":"A. G. Adam, N. Jahan, P. Rashid","doi":"10.3329/dujbs.v31i1.57925","DOIUrl":"https://doi.org/10.3329/dujbs.v31i1.57925","url":null,"abstract":"A field experiment was conducted to investigate the changes inphotosynthetic pigment of BARI Gom-25 as affected by foliar spray of NAA andN-fertilizers. The experiment consisted of seven different concentrations of NAA(NAA0 = 0, NAA1 = 10, NAA2 = 20, NAA3 = 30, NAA4 = 40, NAA5 = 50 and NAA6 =60 ppm) and five N-levels (F0=0, F1=25, F2=50, F3=75 and F4=100% of therecommended dose) and their 35 combination treatments. Results revealed thatfoliar application of 40 ppm NAA (NAA4) produced higher chlorophyll a contentat all stages (tillering, flowering and grain filling) and were significantly higherthan control at tilling and flowering stages. Chlorophyll b and carotenoidcontents did not show any general trend to NAA at any stage except at tillingstage. Application of 50% of the recommended N-fertilizer (F2) producedsignificantly maximum photosynthetic pigment contents at tilling stage whereas,at flowering stage the same results were obtained from 100% of therecommended N-fertilizers (F4) but with few exceptions. At grain filling stage,photosynthetic pigment did not show any general trend to N-fertilizerapplication. Findings on combined effects indicated that 20 and 30 ppm NAA incombination with 50% N-fertilizer (NAA2F2 and NAA3F2) had producedsignificantly maximum chlorophyll a content at tilling stage. However, atflowering stage the highest chlorophyll a content was noted from NAA2F4treatment (20 ppm NAA in combination with 100% N-fertilizer). Findings alsorevealed that combined application of NAA and N-fertilizer had not resulted anygeneral trend on chlorophyll b and carotenoid contents in most of the caseswhere the maximum value in photosynthetic pigment was found depending onthe concentrations of NAA, fertilizer dose and plant growth stages.\u0000Dhaka Univ. J. Biol. Sci. 31(1): 169-176, 2022 (January)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"2007 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76747425","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: 0

Virulence analysis of Pyricularia oryzae isolates causing wheat blast in Bangladesh 孟加拉国小麦稻瘟病菌分离株毒力分析

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54641

A. Noman, S. Shamsi

引用次数: 1

Clay mineralogy of soils from lower atrai basin of Bangladesh 孟加拉国下阿特拉盆地土壤的粘土矿物学

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54654

A. Islam, Z. Khan, A. Mazumder, A. Moslehuddin, M. Uddin, Y. Mori

{"title":"Clay mineralogy of soils from lower atrai basin of Bangladesh","authors":"A. Islam, Z. Khan, A. Mazumder, A. Moslehuddin, M. Uddin, Y. Mori","doi":"10.3329/DUJBS.V30I2.54654","DOIUrl":"https://doi.org/10.3329/DUJBS.V30I2.54654","url":null,"abstract":"The lower Atrai basin, the study area, lies in the Agroecological Zone-5 (AEZ-5) of Bangladesh. This study reveals the clay mineral composition of top soils of seven different soil series viz. Binsara, Taras, Jaonia, Hasnabad, Laskara, Manda and Mainam developed in the basin. X-ray diffraction (XRD) technique was employed to identify and quantify the minerals. Results show that mica (41 to 59%) was the most dominant mineral among all soils except Laskara. In Laskara soils, the interstratified mica-vermiculite-smectite (41%) was the predominant mineral. Next to mica, kaolinite (10 to 12%) was found to be present in the Binsara, Taras 1, Jaonia, and Taras 2 soils. Chlorite (7 to 17%) was identified in all the soils and was found to be the second dominant mineral in the Manda and Mainam soils. In contrast, the interstratified mica-vermiculitesmectite (33%) was found to be the second dominant mineral in the Hasnabad soils. Small amounts of vermiculite mineral (1 to 13%) were identified in almost all the soils except Binsara. All the soils have interstratified mica-chlorite minerals (2 to 7%). A tiny amount of smectite (1%) was identified in Taras 1 soil. As far as the clay mineralogical composition is concerned, most studied soils were found at the initial stage of weathering, indicating the high potential to sustain low input subsistence agriculture. \u0000Dhaka Univ. J. Biol. Sci. 30(2): 293-306, 2021 (July)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88608938","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: 0

Flight muscle and flight activity of melon fly, Bactrocera cucurbitae (Diptera: Tephritidae) 瓜小实蝇(双翅目:绢蝇科)瓜蝇的飞行肌肉和飞行活动

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54644

F. Ferdousi, S. Sultana, T. Akter, Pinakshi Roy, S. Begum

{"title":"Flight muscle and flight activity of melon fly, Bactrocera cucurbitae (Diptera: Tephritidae)","authors":"F. Ferdousi, S. Sultana, T. Akter, Pinakshi Roy, S. Begum","doi":"10.3329/DUJBS.V30I2.54644","DOIUrl":"https://doi.org/10.3329/DUJBS.V30I2.54644","url":null,"abstract":"The flight activity and flight muscle of the melon fly, Bactrocera cucurbitae (Coquillett) (Diptera: Tephritidae) were observed. The Tethered technique was used to observe the flight activity in this study. The flight activity, and wing and flight muscles were compared between male and female melon flies. The results indicate that the female was relatively better and strong flier than the male. The mean duration of the flight activity of the females was 13.90 min/hour and of the males was 7.12 min./hour. The mean length, width, volume of wings of the males were 6.07 mm, 2.67 mm and 10.99 mm³, respectively. On the other hand, the mean length, width and volume of the wings of females were 7.07 mm, 2.87 mm and 15.60 mm³, respectively. In case of wing muscles, the mean volume of dorsal longitudinal muscle (DLM) in male and female was found 5.20 mm³ and 5.67 mm³, respectively. The mean length of flight wing muscle of male and female was 2.22 and 2.23 mm, respectively and the mean breadth of male and female was 1.65 and 1.77 mm, respectively. \u0000Dhaka Univ. J. Biol. Sci. 30(2): 179-185, 2021 (July)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77326920","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: 0

Heavy metal concentration in commonly sold stem vegetables in Dhaka city market and probable health risk 达卡市市场常售茎类蔬菜重金属浓度及可能的健康风险

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54648

R. Sultana, A. Chamon, M. Mondol

{"title":"Heavy metal concentration in commonly sold stem vegetables in Dhaka city market and probable health risk","authors":"R. Sultana, A. Chamon, M. Mondol","doi":"10.3329/DUJBS.V30I2.54648","DOIUrl":"https://doi.org/10.3329/DUJBS.V30I2.54648","url":null,"abstract":"The present study was carried out to assess the concentration of chromium (Cr), cadmium (Cd), lead (Pb), nickel (Ni), copper (Cu), zinc (Zn), iron (Fe) and manganese (Mn) in four stem vegetables such as Potato (Solanum tuberosum L.), Ginger (Zingiber officinale Roscoe), Garlic (Allium sativumL.) and Onion (Allium cepa L.) by using Atomic Absorption Spectrophotometer (AAS). Average daily intake (ADI), hazard quotient (HQ) and hazard index (HI) were also estimated to assess the human health risks posed by heavy metals from the consumption of the studied vegetables. The studied stem vegetable samples were collected in four phases from Kawran Bazar fresh vegetable market of Dhaka city of Bangladesh. Mean concentrations of Cr, Cd, Pb, Ni, Cu, Zn, Fe and Mn in the studied stem vegetables ranged between 0.88 to 2.35, 0.08 to 0.15, 0 to 2.25, 0 to 3.30, 5.70 to 9.85, 18.83 to 40.67, 50.60 to 456.38 and 9.23 to 852.35 mg/kg of dry weight, respectively. Mean concentration of maximum permissible limit (MPL) exceed in onion for Cr, in potato and onion for Pb and in ginger for Fe, Ni and Mn. Average daily intake was found to be lower than the maximum permitted tolerable daily intake in most cases except for Mn (26.475 mg/person/day) for consumption Ginger. Hazard quotient of Mn for dietary intake of Ginger (3.152) and hazard indices of Ginger (4.626), Garlic (1.183) and Onion (1.069) exceeded unity, signifying potential health risks from the dietary intake of these vegetables. This study suggests regular monitoring of heavy metals in vegetables to avoid the potential health hazards on human. \u0000Dhaka Univ. J. Biol. Sci. 30(2): 221-232, 2021 (July)","PeriodicalId":11095,"journal":{"name":"Dhaka University Journal of Biological Sciences","volume":"236 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77563056","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

Non-invasive DNA extraction for molecular identification of royal Bengal tiger Panthera tigris tigris 孟加拉虎底格里斯虎分子鉴定的无创DNA提取

Dhaka University Journal of Biological Sciences Pub Date : 2021-07-09 DOI: 10.3329/DUJBS.V30I2.54657

Alam, M. Rahaman, R. Begum, Rm Shahjahan

引用次数: 0