Rabiul Islam - Academia.edu (original) (raw)

Papers by Rabiul Islam

Journal of Medicinal Plants Studies, 2017

Euphorbia hirta L. belonging to the family Euphorbiaceae which is frequently seen occupying open ... more Euphorbia hirta L. belonging to the family Euphorbiaceae which is frequently seen occupying open waste spaces and grasslands, road sides, and pathways in many parts of the world. The aim of the present study investigation was carried out to compile the medicinal properties of different plant parts of E. hirta L. and to compare their traditional uses with scientific evidences. The leaves of E. hirta are found to contain flavonoids, polyphenols, tannins, sterols, alkaloids, glycosides and triterpenoides. The plant has a reputation for increasing milk flow in women because of its milky latex and is used for other female complaints as well as diseases like bronchitis, asthma, eczema, dysentery. It is used as antidiarrheal, antispasmodic, anti-inflammatory, antifungal, anticancer, antimalarial, antiamoebic, antibacterial and

International Journal of Advanced Education and Research, 2017

Bangladesh Journal of Pharmacology, 2009

Isatin, 5-chloroisatin, 7-bromoisatin and 7-ethylisatin on treatment with furan in presence of di... more Isatin, 5-chloroisatin, 7-bromoisatin and 7-ethylisatin on treatment with furan in presence of diethylamine yield furan moiety inclusion products bis-diisatin [3,3´] furan, bis-[5,5´] dichlorodiisatin [3,3´] furan, bis-[7,7´] dibromodiisatin [3,3´] furan and bis-[7,7´] diethyldiisatin [3,3´] furan respectively in moderate yields. The cytotoxicity of these compounds was studied by the brine shrimp lethality bioassay and the Structure activity relationships (SAR) of these compounds has been discussed. The present study shows that the compound bis-[7,7´] dibromodiisatin [3,3´] furan had pronounced cytotoxicity whereas compounds bis-[5,5´] dichlorodiisatin [3,3´] furan and bis-[7,7´] diethyldiisatin [3,3´] furan were moderately active. It is remarkable that the constituent, Y =-Br at seven position in the benzene ring has greater activity than ethyl and chlorine atom. This work is licensed under a Creative Commons Attribution 3.0 License. You are free to copy, distribute and perform the work. You must attribute the work in the manner specified by the author or licensor.

Indian Journal of Pharmaceutical Sciences, 2006

Cissus quadrangularis (Vitaceae) is a popular climber conspicuous by its flesh quadrangular stem ... more Cissus quadrangularis (Vitaceae) is a popular climber conspicuous by its flesh quadrangular stem widespread throughout the Bangladesh. The in vitro antimicrobial activity of C. quadrangularis extracts was studied against selected pathogenic bacteria, industrial wasted bacteria, and broth dilution assay. The most commonly used method of microbiological assay is the disc diffusion method. C. quadrangularis stem extracted with four solvents (Petroleum spirit, methanol, ethyl acetate, and dichloromethane) were tested for antimicrobial activities against some pathogenic microorganisms Sarcina lutea (002-1), Xanthomonas campestris (004-1), Escherichia coli (005-1), Klebsiella pneumonia (006-1) and some industrial (Tannery, Tobacco, and Sugar mill) waste watered bacteria by disc diffusion method. Among the four extracts, ethyl acetate showed moderate antibacterial activity against X. campestris (004-1) and industrial watered bacteria. But, the commercial disc Oxicycline doesn't show any antibacterial activity against the industrial waste watered bacteria. Petroleum spirit, methanol, and dichloromethane extract were ineffective against all of the tested bacteria.

International journal of home science, 2017

Aging is a natural, multidimensional process of human life. Old age is the closing period of the ... more Aging is a natural, multidimensional process of human life. Old age is the closing period of the life of an individual. A person's activities, attitudes towards life, relationships to the family and work, biological capacities and physical fitness are all confined by the position in the age structure of the particular society in where she/he lives. The aim of the present study was to evaluate the health care services in old homes and aging people preferences for the place of end-of-life care and their need for receiving health care services in Bangladesh. About 51% male, 49% were female and mean age of the respondents was (65.43±5.239) years. Most of them (98%) were Muslim, 94.1% married and 35.29% were in master degree holder. Mean income of the respondents was (Tk. 19600±17530.92), family member (2.96±1.26) person and average living years in old homes was (mean = 2.94±2.58 Years). About 68.63% came by their self-activities, 11.76% respondents were bought by their sons. About 52.9% came in old homes for their family problem, 74.29% came in old homes by conflict with their sons. Monthly expense of the respondents were (tk. 9053.57±2310.76) in public old homes while in private old homes is total free of cost. About 28.6% essential services, 32.1% regular service, 53.6% health related services, 51.9% doctors services and only 10.7% gained medicines in public old homes while 87.0% essential services, 73.9% regular service, 95.7% health related services, 69.6% doctors services and 87.0% gained medicines in private old homes. Both public and private old homes had no ambulance services for male and female separately and in both old homes give food three times daily. About 28.6% are agreeable and 28.6% are satisfied in public old homes while 87.0% are agreeable and 87.0% are satisfied in private old homes. The present findings may help the planners and policymakers to develop an effective old homes care system in Bangladesh considering Bangladeshi people's need for health care services.

International Journal of Phytopharmacy, 2013

The Ecbolium linnaenum(leaves) is used as a folk medicine in Bangladesh for pain, diarrhea and in... more The Ecbolium linnaenum(leaves) is used as a folk medicine in Bangladesh for pain, diarrhea and infectious diseases. Phytochemical evaluation of the ethanolic extracts of Ecboliumlinnaenumleaves demonstratesthese pharmacologic effect for the presence of alkaloids, tannins, gums,flavonoids and absence of carbohydrates, steroids, saponins. In this present study an attempt was made to determine the analgesic, antidiarrhoel, antioxidantand antimicrobial effectin Swiss Albino mice. Ethanolic extracts of250 and 500 mg/kg showed significant inhibition of writhing reflex 36.20% (P< 0.01) and 54.48% (P< 0.001), respectively while the standard drug diclofenac-Na was 75.52% (P< 0.001) at a dose of 25 mg/kg body weight.In the castor oil-induced diarrhoealmice, the ethanolic extracts of 250 mg/kg & 500 mg/kg, raised the latent period and reduced the number of stools comparing with standard drug Loperamide. 0.02% DPPH solution of ethanol on TLC plate showed the presence of anti-oxidant co...

TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 2020

Maritime safety involves minimizing error in all aspects of the marine system. Human error has re... more Maritime safety involves minimizing error in all aspects of the marine system. Human error has received much importance, being responsible for about 80% of the maritime accident worldwide. Currently, more attention has been focused to reduce human error in marine engine maintenance. On-board marine engine maintenance activities are often complex, where seafarers conduct maintenance activities in various marine environmental (i.e. extreme weather, ship motions, noise, and vibration) and operational (i.e. work overload and stress) conditions. These environmental and operational conditions, in combination with generic human error tendencies, results in innumerable forms of error. There are numerous accidents that happened due to the human error during the maintenance activities of a marine engine. The most severe human error results in accidents due to is a loss of life. Moreover, there are other consequences too such as delaying the productivity of marine operations which results in the financial loss. This study reviews methods that are currently available for identifying, reporting and managing human error in marine engine maintenance. As a basis for this discussion, authors provide an overview of approaches for investigating human error, and a description of marine engine maintenance activities and environmental and operational characteristics.

Global Journal of Management and Business Research, 2020

This study attempts to investigate the environmental accounting disclosure reporting practices in... more This study attempts to investigate the environmental accounting disclosure reporting practices in annual report of listed ceramic and cement companies at Dhaka Stock Exchange (DSE) in Bangladesh. To derive the results, we had collected data from secondary source more specifically from annual report. Collected data are analyzed by using, with statistical tools and SPSS software. For testing hypothesis, we have conducted data analysis with regression model and ANOVA test. The study revealed that only 40% listed ceramic companies disclosed their environmental accounting disclosure reporting practices in annual report and 71.43% listed cement companies disclosed their environmental accounting disclosure reporting practices in annual report. Both from ceramic and cement companies, no one disclosed any monetary information about environmental accounting disclosure reporting practices in their annual report. From two sectors comparatively cement companies disclosed more environmental accou...

Journal of Social Sciences, 2011

Problem statement: This study explored the plans and strategies of government for ecotourism deve... more Problem statement: This study explored the plans and strategies of government for ecotourism development in Malaysia as well as ECER. Government participation is necessary in developing economies where tourism planning and promotion tend to be controlled directly by governments. The ecotourism activity should have a strong focus on learning through interpretation of local ecosystems and cultural heritage. Malaysia has formulated separate plan for sustainable ecotourism development in the country. This plan ensures conservation of Malaysia's natural and cultural heritage. Ecotourism activities can be remaining vital tool for economic development in the ECER. The objective of this study is to examine the various plans of Malaysia relating to ecotourism development. The study also analyzes the challenges and prospects of ecotourism development in Malaysia as well as in ECER. Approach: The data for analysis was perceived from the secondary sources. National Ecotourism Plan, Ninth Malaysian Plan and Tenth Malaysian Plan of Malaysia have been thoroughly reviewed in this regard. Results: The study shows that the major activities of Malaysian Government for ecotourism development were strategies, improving ecotourism products, improving accessibility, employment and training, marketing promotion, sustainable tourism development, investment, research and planning, safety and security. The initiatives of government for ecotourism development in ECER are guidelines, market segmentation, infrastructure development, cooperation among state authorities, commercial interest and investment, local entrepreneurship and Bumiputera participation. Conclusion: The study reveals that some activities may be taken for the ecotourism development in Malaysia. These are ecotourism action plan, building institutional capacity; invest in ecotourism projects, creation of protected areas, image and branding, linkage to other types' tourism, advertising and publication, human resource development and SME operation. The government must be ensured the local people participation in ecotourism development for their social, ecological, economic and cultural benefits.

This study aimed to find out that a cup of tea is or is not safe for human health from microbial ... more This study aimed to find out that a cup of tea is or is not safe for human health from microbial contamination and to point out the antimicrobial property of made tea liquor. Different made tea brands were collected randomly from different super shop of Dhaka city. The Association of Official Agricultural Chemists (AOAC), 2005 was used as official methods of analysis. The Standard Plate Count (SPC) technique was used for total microbial load, yeast and fungal count. Most Probable Number (MPN) technique was used for the enumeration of coliform in tea samples. Bacteria, yeast, mould and coliform were observed before and after boiling in all studied the samples. Before boiling, total microbial load and coliform were found at significantly higher of its’ acceptable limit (p<0.05) whereas yeast and fungus were found of its’ acceptable limit (p>0.05). After boiling, only coliform was observed significantly higher in all except Tetley tea at its’ non-acceptable limit (p<0.05). Fec...

Lecture Notes in Computer Science, 2005

In this paper, we have suggested a novel way to implement the interconnections in the Multi-Mesh ... more In this paper, we have suggested a novel way to implement the interconnections in the Multi-Mesh (MM) network using optical devices. In a traditional, copper-based approach, the long connections between processors in an interconnection network create major limitations with respect to the speed of communication. Our approach for inter-block communication in a MM uses optical communication using Wavelength Division Multiplexing (WDM). Rather than passive stars or free-space optics, used to implement some recent optoelectronic communication schemes for interconnection networks, this design uses wavelength routed fiber-based networks.

2010 Symposium on VLSI Circuits, 2010

Abstract Lincroft, the next generation Intel® ATOM processor based SoC specifically designed for... more Abstract Lincroft, the next generation Intel® ATOM processor based SoC specifically designed for smartphones, is fabricated in 45 nm Hi-K metal gate CMOS. As part of the extensive low power methodology, the chip is divided into numerous power domains with ...

Northern University Journal of Law, 2014

With the advent of technology human beings are becoming exclusively dependant on automation and w... more With the advent of technology human beings are becoming exclusively dependant on automation and we can see its influence on all spheres of our life. The history of automation began when Babbage invented computer and especially a new horizon was opened before us with the invention of network particularly the Internet and World Wide Web (WWW). Internet has become the backbone of all kinds of communication systems and it is also one of the most important sources of knowledge in the present digitalized world. DOI: http://dx.doi.org/10.3329/nujl.v1i0.18529 Northern University Journal of Law Vol.1 2010: 112-124

International Journal of Computer Applications, 2010

It is well known to enhance the performance of noise robust speaker identification using visual s... more It is well known to enhance the performance of noise robust speaker identification using visual speech information with audio utterances. This paper presents an approach to evaluate the performance of a noise robust audiovisual speaker identification system using likelihood ratio based score fusion in challenging environment. Though the traditional HMM based audiovisual speaker identification system is very sensitive to the speech parameter variation, the proposed likelihood ratio based score fusion method is found to be stance and performs well for improving the robustness and naturalness of human-computerinteraction. In this paper, we investigate the proposed audiovisual speaker identification system in typical office environments conditions. To do this, we investigated two approaches that utilize speech utterance with visual features to improve speaker identification performance in acoustically and visually challenging environment: one seeks to eliminate the noise from the acoustic and visual features by using speech and facial image pre-processing techniques. The other task combines speech and facial features that have been used by the multiple Discrete Hidden Markov Model classifiers with likelihood ratio based score fusion. It is shown that the proposed system can improve a significant amount of performance for audiovisual speaker identification in challenging official environment conditions.

Bangladesh Journal of Pharmacology, 2010

The compound, 5-Cyclopropyl-8-fluoro-2-phenyl-7piperazin-1-yl-2,5-dihydro-pyrazolo [4,3-c]quinoli... more The compound, 5-Cyclopropyl-8-fluoro-2-phenyl-7piperazin-1-yl-2,5-dihydro-pyrazolo [4,3-c]quinolin-3one, 1a (scheme 1.1) was prepared by the mixture of ciprofloxacin (1.0238 g, 2.7229 mmol) in 10 mL methanol and an equivalent amount of phenyl hydrazine (0.2941 g, 2.7229 mmol) taken in 50 mL two necked quick fit round bottom flask, was heated in an oil bath at 120-130°C for 2.5 hours. The color of the reaction mixture was changed to white brown during the reflux period. The reaction mixture was allowed to cool at room temperature and was kept overnight to be

Asian Journal of Scientific Research, 2015

Journal of Applied Sciences, 2015

Journal of Naval Architecture and Marine Engineering, 2011

Numerical study is performed to examine numerically the stable solution for the incompressible vi... more Numerical study is performed to examine numerically the stable solution for the incompressible viscous steady flow through a curved pipe with circular cross-section. Also the combined effects of high Dean Number Dn and curvature δ on the flow are investigated. Spectral method is applied as a main tool for the numerical technique; where, Fourier series, Chebyshev polynomials, Collocation methods, and Iteration method are used as secondary tools. The flow patterns have been shown graphically for large Dean Numbers and a wide range of curvature, 0.01≤δ≤0.9.Two vortex solutions have been found for secondary flow. Axial velocity has been found to increase with the increase of Dean number and decrease with the increase of curvature. For high Dean number and low curvature almost all the fluid particles leave the inner half of the cross-section. The stable solution zone increases with the increase of curvature up to a certain limit, then decrease.DOI: 10.3329/jname.v7i1.3630

Bangladesh Journal of Botany, 2014

The total caffeine content in Bangladesh Tea (BT) varieties (BT1-BT18) ranged from 1.59 ± 0.155 -... more The total caffeine content in Bangladesh Tea (BT) varieties (BT1-BT18) ranged from 1.59 ± 0.155 - 4.15 ± 0.399 g/100g of DM and the crude fat content in BT varieties varied from 6.69 ± 0.64 - 9.87 ± 0.9509 g/100g of dry material (DM). In this study, the highest amount of caffeine (4.15 ± 0.399 g/100g DM) was found in BT-16 variety (p < 0.05) while the highest amount of crude fat (9.24 ± 0.889g/100g DM) was found in BT 10 variety (p > 0.5). The total polyphenol content ranged:8.66 ± 0.831 - 14.89 ± 1.432 GAE; g/100 g DM. The highest amount of polyphenol was found in BT 9 variety (14.890 ± 1.432 GAE; g/100 g DM) (p < 0.05). DOI: http://dx.doi.org/10.3329/bjb.v42i2.18037 Bangladesh J. Bot. 42(2): 321-325, 2013 (December)