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- 저자 : Abul Kashem Chowdhury (검색결과 3 건)
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A Study of the Private Security in Bangladesh
Mohammed Bin Kashem,Abul Quassem Chowdhury 아시아경찰학회 2003 아시아경찰학회 국제학술회의 Vol.2003 No.-
The number of non-state agencies providing security services has increased significantly in recent years. As of December 31, 2002 there are more than 200 security guard agencies in Bangladesh. Given the very low level of public confidence in the police the commercial organizations are now increasingly relying on private security. However, very little is known about the private security organizations. The purpose of this paper is to examine the nature and extent of private security in Bangladesh. In addition, the study will identify the problems of these agencies. The data for this research were gathered from multiple sources. A sample survey of the security agencies working in two big cities, document research, semi- structured and in-person interview techniques were used to collect the data. The findings suggest that private security providers mainly offer three types of services such as guarding, cash-in transit, and consultancy. It is found that in many agencies security personnel are poorly paid and trained. Also, they are not well educated. It appears that private security agencies are playing an important role in maintaining public safety. Some policy recommendations are offered to address the various problems of the security industry.
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Hafsa Sultana,Uzzal Somaddar,Swadesh Chandra Samanta,Abul Kashem Chowdhury,Gopal Saha 한국육종학회 2022 Plant Breeding and Biotechnology Vol.10 No.2
Development of salt tolerance in rice through breeding program is mainly depends on the salinity responses of thepotential rice germplasms. Coastal rice landraces of Bangladesh possess diverse morphological and physiological responses to salinity. Hence, our target is to identify candidate salt-tolerant coastal rice genotypes as a new source of salt tolerance (12 dS/m). Here, weannotated 20 Bangladeshi coastal Aus landrace rice regarding their phenotypic and genetic relatedness to salinity tolerance throughmultivariate analyses of five morpho-physiological traits namely, salt injury score (SIS), ion-leakage, chlorophyll concentration,root-shoot reduction percentage and profiling of DNA using simple sequence repeat (SSR). Based on the standard evaluation score(SES) the salt-induced coastal rice landraces were grouped into highly susceptible (HS), susceptible (S), moderately tolerant (MT),tolerant (T) and highly tolerant (HT). Besides, a canonical discrimination analysis of the mean trait values of five morpho-physiologicalparameters confirmed the above mentioned five categories of salinity tolerance. Based on all morpho-physiological parameters onegenotype (Kalihytta) as highly tolerant (HT), two genotypes (Manikmuri and Monsur IRRI) as tolerant (T) and five genotypes (Nara,Iratom 27, Matichak, Abdul high IRRI and Parija) were identified as moderately tolerant (MT) against salinity. Finally, the molecularcharacterization using two SSR markers (RM493 and RM3412) revealed Kalihytta, Nara, Iratom 27, Parija, Lal jamaibabu andFullbadam, as tolerant against salt stress. Our candidate salt tolerant Aus rice genotypes could be useful as novel sources of salttolerance for thriving salt-tolerant high yielding varieties in the coastal ecosystem of Bangladesh.
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Md Abdus Shahid,Abdur Rahim,Mohammad Asaduzzaman Chowdhury,Mohammad Abul Kashem 경희대학교 융합한의과학연구소 2022 Oriental Pharmacy and Experimental Medicine Vol.22 No.2
Nigella sativa (N. sativa) is extensively used as medicinal plant all over the world. It has the potential properties as the antiviral and antibacterial application. Its seed contain thymoquinone (TQ), thymohydroquinone (THQ), thymol (THY), p-cymene as major and other minor components. TQ and THQ exhibit broad spectrum of antimicrobial properties against the activity of bacteria, viruses, parasites, schistosoma and fungi. This work provides credence to the fabrication of antibacterial nanofibrous membrane by electrospinning machine from N. sativa extract with polyvinyl alcohol (PVA) solution for wound dressing. The morphology of the developed membrane is also characterized using scanning electron microscope. Fourier transform infrared spectroscopy (FTIR) data has been showed that the functional groups of N. sativa are present in the prepared PVA-N. sativa nanofibrous membrane and its antibacterial activity was investigated. The disk diffusion method has been used to evaluate the antibacterial activity of PVA-N. sativa nanofibrous membrane against Staphylococcus aureus (S. aureus) bacteria and the inhibition zone with a value of 10 mm is formed. Considering the inherent properties of N. sativa, a conceptual reaction mechanism has been proposed to deactivate the viral proteins by the action of TQ and THQ.
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