bluuebunny/crossref_metadata_2025_split huggingface dataset:
Production Potential and Weed Dynamics in Maize + Legumes Intercropping System
Authors: Naher Q , Karim SMR , Begum M , Hossain MA 
Published: March 2021

The experiment was carried out at the Bangladesh Agricultural Research Institute, Gazipur during summer season of 2012 to identify suitable legume crops for growing with maize in a maize + legume intercropping system for better weed suppression, system productivity and economic benefits in kharif season. There were 17 treatments, viz.T1= Sole maize (no weeding), T2= Maize + Mungbean (no weeding), T3= Maize + Mungbean (weeding at 20 DAE), T4= Maize + Mungbean (weeding at 40 DAE), T5= Maize + Mungbean (weeding at 20 and 40 DAE), T6= Maize + Soybean (no weeding), T7= Maize + Soybean (weeding at 20 DAE), T8= Maize + Soybean (weeding at 40 DAE), T9= Maize + Soybean (weeding at 20 and 40 DAE), T10= Maize + Blackgram (no weeding), T11= Maize + Blackgram (weeding at 20 DAE), T12= Maize + Blackgram (weeding at 40 DAE), T13= Maize + Blackgram (weeding at 20 and 40 DAE) T14 =Sole maize (weed free), T15= Sole Mungbean (weed free), T16= Sole Soybean (weed free) and T17= Sole Blackgram (weed free) were studied. Intercropping systems significantly reduced the weed population and weed dry biomass in comparison to sole cropping of maize under unweeded situation. Among the three different intercropping systems, maize + mungbean with two hand weedings produced the lowest weed dry weight (184.30 g at 20 DAE and 14.07 g at 40 DAE) and the highest weed control efficiency (87% at 40 DAE) followed by maize + soybean and maize + blackgram intercropping systems. The highest grain yield was obtained from weed free sole maize (8.05 t ha-1) than unweeded sole maize (6.48 t ha-1) treatment. Among all intercropping, maize + mungbean along with two hand weedings gave the highest yield (maize: 7.18 t ha-1; 572.6 kg ha-1 mungbean), resource complementarity and profitability (MEY = 10.62 t ha-1, LER = 1.81 and BCR = 2.47). From the study it was concluded that maize + mungbean with two hand weedings at 20 and 40 DAE would be the best in reducing weed growth, producing maximum yield and getting net return in intercropping systems during kharif season.
Bangladesh Agron. J. 2020, 23(2): 1-12
Planting Time Effect on Quality Seed Production of Three Varieties of Carrot (Daucus Carota L.)
Authors: Lutfunnahar - , Hossain MF , Malek MA , Kamrunnahar R , Hossain J 
Published: March 2021

Crop management like planting time is a crucial factor for maximizing yield especially for seed production. Seed production of carrot is greatly influenced by temperature as it requires adequate periods of cool temperature (vernalization) for flowering and seed production. To find out optimum planting time of carrot steckling for quality seed production the experiment was conducted at the Field Laboratory of Horticulture Farm, Bangladesh Agricultural University, Mymensingh during the period from October 2015 to May 2016.Three planting time viz. 05 January, 15 January and 25 January on the seed production of three carrot varieties viz. BA (Brasillia Agroflora), PA (Prima Agroflora) and NK (New Kuroda) which constituted 9 treatment combinations were included in the experiment. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Planting time had significant effect on most of the parameters studied. The January 05 planting of steckling gave the highest seed yield (527.92 kg ha-1) and the lowest was in January 25 planting of steckling (314.75 kg ha-1). Among the varieties BA gave the highest seed yield (448.73 kg ha-1) and the lowest yield for New Kuroda (395.35 kgha-1.) Considering interaction of planting time and variety the highest seed yield (572.37 kg ha-1) was obtained from the treatment combination of early planting (05 January) with the variety of BA and the lowest (279.77 kg ha-1) was recorded from the late planting (25 January) in variety PA. Hence, BA carrot variety planting on 5 January may be recommended for carrot seed production in Mymensingh region in Bangladesh.
Bangladesh Agron. J. 2020, 23(2): 23-34
Nitrogen Fertilization on Growth and Yield Response of Oat (Avena Sativa L.)
Authors: Islam MM , Mamun AA , Ghosh SK , Mondal D 
Published: March 2021

Nitrogen is one of the main inputs of oat cultivation and its efficient management is a basic for harvesting the maximum potentiality of the crop. An investigation was conducted at field laboratory of Agrotechnology Discipline, Khulna University, Bangladesh to find out the effect of nitrogen fertilizer on growth, yield and yield contributing characters of oat during 2017-2018. The experiment was designed in randomized complete block with seven N rates (0, 30, 45, 60, 75, 90 and 105 kg ha-1) in triplicate run. Application of N nitrogen significantly increased the growth and yield of oat. The results showed that 105 kg ha-1 N was supreme in all growth parameters and straw yield but 90 kg ha-1 N was better for main yield parameters and grain yield. The maximum plant height (101.27 cm), leaf number (11.90), tillers plant-1 (9.93), plant density (41.33 m-2) and straw yield (4.70 tha-1) were recorded with 105 kg ha-1 N application, whereas the highest grain yield (1.76 t ha-1) was found with 90 kg ha-1 N. From the results of the present research, it may be concluded that application of 90 kg N ha-1 could be used for oat production in soils of AEZ 13, Bangladesh.
Bangladesh Agron. J. 2020, 23(2): 35-43
Growth Assessment of Tropical Sugarbeet as Influenced by Spacing
Authors: Sohel MAT , Hossain MAE , Roy HP , Reza SM , Shanta FH , Razib MRR 
Published: March 2021

The experiment was carried out at the research field of Agronomy and Farming Systems Division, Bangladesh Sugarcrop Research Institute (BSRI), Ishurdi, Pabna during 2012-2013 to determine the most suitable spacing for sugarbeet cultivation in Bangladesh. The experiment was conducted with nine spacing viz. 50 cm × 20 cm, 60 cm × 20 cm, 70 cm × 20 cm, 50 cm × 25 cm, 60 cm × 25 cm, 70 cm × 25 cm, 50 cm × 30 cm, 60 cm × 30 cm and 70 cm × 30 cm in a randomized complete block design with three replications. The effects of spacing on sugarbeet plantation were observed on growth and growth contributing components (germination percentage, number of leaves plant-1, root length, shoot length, root fresh weight, shoot fresh weight, root dry weight, shoot dry weight, crop growth rate) of sugarbeet. The highest germination percentage (95.67%), number of leaves plant-1 (34.33) at 30 DAS, shoot length (54.07 cm) at 120 DAS, root fresh weight (969.47 g plant-1) at 150 DAS, shoot fresh weight (752.47 g plant-1) at 120 DAS and other growth contributing parameters were obtained with the spacing 70 cm × 30 cm. However, the maximum root length (38.97 cm) was obtained with 50 cm × 20 cm spacing. It was concluded that the wider spacing promoted the growth of individual beet, though the optimum spacing for maximum root growth of sugarbeet was 50 cm × 20 cm.
Bangladesh Agron. J. 2020, 23(2): 51-58
Organic Amendment on Soil Quality and Yield Performance of Dry Direct Seeded Boro Rice
Authors: Rahman MM , Uddin M 
Published: March 2021

An experiment was conducted at Khitrokashipur, Durgapur, Rajshahi during March to June 2018 to study the effect of organic amendment on soil quality and yield performance of dry direct seeded boro rice var. BRRI dhan28. The treatments were Trichocompost (TC), Vermicompost (VC), mustard oil cake (MOC), Trichocompost + mustard oil cake (TC+MOC), Vermicompost + mustard oil cake (VC + MOC), and no amendment control. The experiment was laid out in a randomized complete block design with three replications. Trichocompost and Vermicompost were applied @ 3 t ha-1, while mustard oil cake was used @ 0.5 t ha-1. The results revealed that Trichocompost and vermicompost fertilization exerted significant influence on yield performance of BRRI dhan28 in boro season. The treatment trichocompost (T1) @ 5 t ha-1 produced the highest grain yield (5.95 t ha-1), while the mustard oil cake (T3) @ 0.5 t ha-1 the highest effective tillers hill-1 (15.33), though the highest straw yield (5.46 t ha-1) was produced in the treatment VC + MOC (T5). In case of soil properties, Trichocompost (T1) @ 3 t ha-1 and mustard oil cake (T3) @ 0.5 t ha-1 improved soil organic matter content, while Trichocompost (T1) @ 3 t ha-1 and Vermicompost (T2) @ 0.5 t ha-1 improved phosphorus and potassium content. Field capacity was greatly influenced by Trichocompost (T1) @ 3 t ha-1 and Vermicompost + mustard oil cake (T5). Soils with Trichocompost (T1) @ 3 tha-1 showed the highest bulk density. It was concluded that organic amendment greatly improved the yield performance of BRRI dhan28 and also soil physical and chemical properties under dry direct seeded boro rice cultivation system.
Bangladesh Agron. J. 2020, 23(2): 103-109
Single Center Observational Study to Evaluate the Safety and Efficacy of Self-expanding Composite Mesh for Repair of Small Umbilical Hernias
Authors: Roy Sharmistha , Mondal Samiron Kumar , Pervin Mosmmat Mira , Bahar Mohd Mejbahul 
Published: March 2021

Background: There is evidence that mesh repair for umbilical hernias results in fewer recurrences. Early and late complication rates of mesh repair are variable with different techniques of mesh repair. In recent years, several mesh device for the repair of small ventral hernias have been developed, but some reports have been published reporting some adverse outcomes like high recurrences or wound related complications encountered with those mesh devices. The purpose of this study was to evaluate the safety and efficacy of small umbilical hernia(<3cm) repair using self expanding dual mesh.
Methods: In this study we used a composite self-expanding mesh with Polypropylene(PP) on one side and expanded polytetrafleuroethylene(ePTFE) on the other side. We introduced this technique in our department at BIRDEM General Hospital and IMC in March 2017 and collected patients data and outcome in an observational study of 25 consecutive patients matching our inclusion criteria until February 2019. In addition to the routine 1st week postoperative follow-up, We did a prospective follow-up at 1 month,6 month and 1 year which included a questionnaire, clinical examination and ultra sonogram after 12 months.
Results: The study included 15 female and 10 male patients with age ranging from 25-62 years(Mean- 47) having 16 primary umbilical hernia and 9 umbilical port hernias. The size of gap was <3cm and all except 2 hernias were reducible. In all patients a self expanding dual mesh was used with a diameter of 8cm(18 patients) or 6.4(7 patients) cm. Early complications included superficial wound infection-1(4%), seroma-1(4%), serosanguinous discharge-1(4%) and ecchymosis-1(4%). No major wound problems were noted in 1 month or 6 month follow-up except 1 patient reporting hypertrophied scar. At 1st month follow up 21 patientswere pain free, after 6 month only 1 patient reported mild pain, after 1 year 100% patients were pain free. 24 out of 25 patients ie 96% were very satisfied with the result of their repair. There was no recurrence after one year.
Conclusion: Umbilical and umbilical port hernia repair with Self expanding dual mesh is effective and is cosmetically very appreciated by patients as good as laparoscopic repair. Therefore, we recommend using these meshes only for umbilical and umbilical port hernias smaller than 3 cm. For larger or incisional hernias other techniques allowing the use of larger meshes is advocated.
Journal of Surgical Sciences (2020) Vol. 24 (2) : 43-50
Endoultrasound versus Conventional Image Guided (CT/US) Fine Needle Aspiration in Diagnosis of Pancreatic Malignancy
Authors: Hossain Md Amjad , Chowdhury Md Abul Kalam , Majumder Krisna Rani , Alam AHM Towhidul 
Published: March 2021

Background:The emergence of endoultrasound (EUS) has shown this modality to be an excellent method of detecting and staging lesions in the pancreas with a low rate of complications. Controversy has arisen about whether the approach with the conventional image (CT/US) guided FNA or endoultrasound (EUS) guided FNA is the preferred method to obtain cells from suspicious mass.
Objectives:To assess the diagnostic efficacy of endoultrasound guided fine needle aspiration (EUS FNA) versus conventional imageguided fine needle aspiration (CT/US FNA) in pancreatic malignancy.
Methodology:Twentyeight cases of clinically suspected patients of pancreatic malignancy were included in the study. Each enrolled patient underwent to either a conventional image guided fine needle aspiration or endoultrasound guided fine needle aspiration of the pancreatic mass for diagnosis of pancreatic malignancy. Data were analyzed with the help of SPSS version 23. Statistical analysis was done by student t-test and Chi square (÷2) test. Statistical significance was set at p<0.05.
Result: Diagnostic accuracy in terms of distinguishing the cytopathology was 57.1% in conventional image(CT/US) guided FNA group and 85.7% in EUS guided FNA group. These values were numerically convincing for preferring EUS guided FNA method but was statistically insignificant. Again, if we consider the diagnosis of malignancy alone the values were 35.7% and 64.3% for CT/US guided FNA and EUS guided FNA respectively. This was also not significant statistically.
Conclusion:Numerically EUS guided FNA showed better precision in detecting pancreatic malignancy and thereby its accuracy in yielding adequate tissue sample for cytological evaluation and inference.
Journal of Surgical Sciences (2020) Vol. 24 (2) : 57-60
Surgery Guidelines In Covid-19 Pandemic; Bangladesh Perspective
Authors: Bhuiyan Md Nur Hossain , Akhter SM Quamrul , Hossain AZM Mostaque , Alam AHM Towhidul , Khan Zulfiqure Rahman , Barua Kanak Kanti 
Published: March 2021

Abstract not available
Journal of Surgical Sciences (2020) Vol. 24 (2) : 70-76
Plasmid-Chromosome Crosstalk in Staphylococcus aureus: A Horizontally Acquired Transcription Regulator Controls Polysaccharide Intercellular Adhesin-Mediated Biofilm Formation
Authors: Marincola Gabriella , Jaschkowitz Greta , Kieninger Ann-Katrin , Wencker Freya D.R. , Feßler Andrea T. , Schwarz Stefan , Ziebuhr Wilma 
Published: March 2021

Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) of clonal complex CC398 typically carry various antimicrobial resistance genes, many of them located on plasmids. In the bovine LA-MRSA isolate Rd11, we previously identified plasmid pAFS11 in which resistance genes are co-localized with a novel ica-like gene cluster, harboring genes required for polysaccharide intercellular adhesin (PIA)-mediated biofilm formation. The ica genes on pAFS11 were acquired in addition to a pre-existing ica locus on the S. aureus Rd11 chromosomal DNA. Both loci consist of an icaADBC operon and icaR, encoding a corresponding icaADBC repressor. Despite carrying two biofilm gene copies, strain Rd11 did not produce PIA and transformation of pAFS11 into another S. aureus strain even slightly diminished PIA-mediated biofilm formation. By focusing on the molecular background of the biofilm-negative phenotype of pAFS11-carrying S. aureus, we identified the pAFS11-borne ica locus copy as functionally fully active. However, transcription of both plasmid- and core genome-derived icaADBC operons were efficiently suppressed involving IcaR. Surprisingly, although being different on the amino acid sequence level, the two IcaR repressor proteins are mutually replaceable and are able to interact with the icaA promoter region of the other copy. We speculate that this regulatory crosstalk causes the biofilm-negative phenotype in S. aureus Rd11. The data shed light on an unexpected regulatory interplay between pre-existing and newly acquired DNA traits in S. aureus. This also raises interesting general questions regarding functional consequences of gene transfer events and their putative implications for the adaptation and evolution of bacterial pathogens.
Determining Trap Compliances, Microsphere Size Variations, and Response Linearities in Single DNA Molecule Elasticity Measurements with Optical Tweezers
Authors: Mo Youbin , Fizari Mounir , Koharchik Kristina , Smith Douglas E. 
Published: March 2021

We previously introduced the use of DNA molecules for calibration of biophysical force and displacement measurements with optical tweezers. Force and length scale factors can be determined from measurements of DNA stretching. Trap compliance can be determined by fitting the data to a nonlinear DNA elasticity model, however, noise/drift/offsets in the measurement can affect the reliability of this determination. Here we demonstrate a more robust method that uses a linear approximation for DNA elasticity applied to high force range (25–45 pN) data. We show that this method can be used to assess how small variations in microsphere sizes affect DNA length measurements and demonstrate methods for correcting for these errors. We further show that these measurements can be used to check assumed linearities of system responses. Finally, we demonstrate methods combining microsphere imaging and DNA stretching to check the compliance and positioning of individual traps.
Changes in Degree Centrality of Network Nodes in Different Frequency Bands in Parkinson’s Disease With Depression and Without Depression
Authors: Liao Haiyan , Yi Jinyao , Cai Sainan , Shen Qin , Liu Qinru , Zhang Lin , Li Junli , Mao Zhenni , Wang Tianyu , Zi Yuheng , Wang Min , Liu Siyu , Liu Jun , Wang Chunyu , Zhu Xiongzhao , Tan Changlian 
Published: March 2021

BackgroundDepression induces an early onset of Parkinson’s disease (PD), aggravates dyskinesia and cognitive impairment, and accelerates disease progression. However, it is very difficult to identify and diagnose PD with depression (PDD) in the early clinical stage. Few studies have suggested that the changes in neural networks are associated with PDD, while degree centrality (DC) has been documented to be effective in detecting brain network changes.ObjectivesThe objectives of this study are to explore DC changes between patients with PDD and without depression (PDND) and to find the key brain hubs involved with depression in PD patients.MethodsOne hundred and four PD patients and 54 healthy controls (HCs) underwent brain resting-state functional magnetic resonance imaging. The Data Processing and Analysis of Brain Imaging and Resting-State Functional Magnetic Resonance Data Analysis Toolkit were used for processing and statistical analysis. The DC value of each frequency band was calculated. One-way analysis of variance and a two-sample t-test for post hoc comparison were used to compare the differences of the DC values in different frequency bands among PDD, PDND, and healthy control group. Gaussian random field was used for multiple comparison correction. Pearson correlation analysis was performed between each individual’s DC map and clinical indicators.ResultsThe DC value of different brain regions changed in PDD and PDND in different frequency bands. The prefrontal lobe, limbic system, and basal ganglia were the main brain regions involved. PDD patients showed a wider range and more abnormal brain areas in the slow-4 frequency band (0.027–0.073 Hz) compared to the HCs. PDD showed a decreased DC value in the medial frontal gyrus, bilateral cuneus gyrus, right lingual gyrus, bilateral supplementary motor area (SMA), bilateral superior frontal gyrus, and left paracentral lobule, but an increased DC value in the bilateral brainstem, midbrain, bilateral parahippocampal gyrus, cerebellum, left superior temporal gyrus, bilateral insula, left fusiform gyrus, and left caudate nucleus in the traditional frequency band (0.01–0.08 Hz) compared to PDND patients. PDND patients displayed more abnormal functions in the basal ganglia in the slow-4 frequency band.ConclusionThe DC changes in PDD and PDND are frequency dependent and frequency specific. The medial frontal gyrus, SMA, and limbic system may be the key hubs for depression in PD.
Investigation on the Incidence of Syncope in Children and Adolescents Aged 2–18 Years in Changsha
Authors: Hu Erlin , Liu Xiaoyan , Chen Qianqian , Wang Cheng 
Published: March 2021

Objectives:Syncope is a common clinical symptom, while there are less relevant literature and targeted research on childhood morbidity. This article makes a cross-section survey on the incidence of syncope in children and adolescents aged 2–18 years in Changsha.Materials and Methods:There were 4,352 children and adolescents aged 2–18 years randomly selected from six primary and secondary schools and three kindergartens in Changsha from March 2018 to November 2018. There were 4,916 standardized questionnaires issued, and 4,352 (88.53%) valid questionnaires were recovered.Results:(1) Incidence: 17.37% of children and adolescents aged 2–18 years who had at least more than one syncope; the incidence in the adolescence (28.85%) was higher than that in the school age (8.32%) and in the preschool age (2.71%) (P&lt; 0.01). (2) Age at onset: 13.9 ± 3.1 years old, with a peak age of 16 years. (3) Gender difference: The incidence in adolescent females was higher than that in males (31.72 vs. 26.25%,P&lt; 0.05). In inducements, females had higher rates than males in sweltering environment (P&lt; 0.01), whereas males had higher rates than females in urination (P&lt; 0.05). Dizziness, nausea, sweating, and facial pallor were higher in females than in males in presyncope (P&lt; 0.05).Conclusions:The incidence of syncope in children and adolescents aged 2–18 years in Changsha is 17.37%. The incidence of syncope is different between males and females in different age groups; there are gender differences in syncope inducements and presyncope.
Postmenopozal Kadınlarda Fiziksel Aktiflik Durumu İle Antropometrik Ölçümler Ve Vücut Kompozisyonu Özelliklerinin İlişkisi
Authors: KORKMAZER Başak , BİLGEN KOCAOĞLU Sinem , ŞAHİN Erkan Melih 
Published: March 2021

Giriş ve Amaç: Menopoz geçişi normal yaşlanma sürecinin bir parçası olmasına rağmen devamındaki değişiklikler kadınların sağlık-risk profilini etkilemektedir ve bu etki, birçok faktöre bağlıdır. Bu çalışmanın amacı postmenopozal kadınlarda fiziksel aktiflik durumu ile antropometrik ve vücut kompozisyonu özelliklerinin ilişkisini araştırmaktır.
Gereç ve Yöntem: Kesitsel nitelikteki bu çalışma Çanakkale Onsekiz Mart Üniversitesi Uygulama ve Araştırma Hastanesi kayıtlarında bulunan 45 yaş üstü 95 postmenopozal kadınla yürütülmüştür. Veriler araştırmacılar tarafından hazırlanan sosyodemografik veri anketi, Uluslararası Fiziksel Aktivite Testi-kısa formu, antropometrik ölçümler ve biyoempedans yoluyla vücut kompozisyonunun ölçümü ile toplanmıştır.
Bulgular: Yaş ortalaması 61,7 ± 7,2 [47 - 77] olan ve ortalama 14,6 ± 7,4 [1 - 35] yıldır postmenopozal dönemde olan 95 katılımcının ortalama ağırlığı 74,0 ± 13,6 [46,6 – 110,0] kg, boyu 155,9 ± 6,0 [141 - 171] cm idi. Menopoz sonrası geçen süre ile vücut ağırlığı arasında anlamlı negatif korelasyon mevcuttu. Yaş ve menapoz üzerinden geçen süre ile yağsız kitle arasında anlamlı negatif korelasyon mevcuttu. Katılımcıların IPAQ skorları ile yaş arasında korelasyon yoktu. Katılımcıların vücut ağırlığı, bel çevresi, kalça çevresi ortalamaları IPAQ Kategori I’de Kategori II’dekinden anlamlı yüksekti. Katılımcıların biyoempedans ölçümlerinden yağ kitlesi, yağ yüzdesi ve yağsız kitlesi ortalamaları IPAQ Kategori I’de, Kategori II’den anlamlı yüksekti. Ortalama SMI, ASMI, ALMI hesaplamaları IPAQ kategorileri arasında anlamlı farklı değildi.
Sonuç: Menopoz sonrası hormon kullanımının kalp hastalıklarına karşı korunmasındaki yetersizliği göz önüne alındığında, sağlığın korunmasında egzersizin rolü önemlidir. Çalışmamızda da gösterdiğimiz üzere menopoz süresi veya yaşın bir önemi olmaksızın fiziksel aktivitenin hayata entegre edilmesi düşük bel çevresi, yağ kitlesi, yağ yüzdesi ve yağsız kitlede artış ile karakterizedir.