Browsing Department of Mathematics and Natural Sciences (MNS) by Issue Date
Now showing items 21-40 of 629
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Evaluation of antibacterial, antioxidant and toxicological activity of crude extracts of Adiantum capillus-veneris, Blumea lacera, Cassia alata, and Cissus quadrangularis from Faridpur, Bangladesh
(BRAC University, 2011-06)Antibacterial and antioxidant potentials of Adiantum capillus-veneris, Blumea lacera, Cassia alata, and Cissus quadrangularis from Faridpur, Bangladesh was investigated in this study along with their toxicological evaluation. ... -
Enhancement of microstructure and initial permeability due to Cu substitution in Ni0.50-xCuxZn0.50Fe 2O4 ferrites
(© 2011 Elsevier, 2011-08)Structural and magnetic properties of Cu substituted Ni 0.50-xCuxZn0.50Fe2O4 ferrites (where x=0.00.25) prepared by an auto combustion method have been investigated. The X-ray diffraction patterns of these compositions ... -
Study on the expression of vacuolar proton PUMP ATPase subunit F that contributes in abiotic stress tolerance of Jute (corchorus olitorious)
(BRAC University, 2011-08)Jute (Corchorus spp.) is the second most important fibre producing plant in the world. It is a very season specific crop and requires certain temperature and moisture conditions for growth. To imporve the quality of this ... -
In Vitro regneration of three local potato (Solanum tuberosum L.) varieties of Bangladesh
(BRAC University, 2011-09)The present study was conducted to develop an efficient and reliable protocol for in vitro regeneration of potato varieties. Experiments were conducted with a view to standardize in vitro regeneration of three local ... -
Cloning of an antiporter gene (NHX1) from PCR amplicons into a recombination competent vector containing a constitutive promoter (caMV35S)
(BRAC University, 2011-10)The costal belt of Bangladesh is under the threat of increasing salinity and thus reducing plant productivity. Consequently, salinity has become a major concern for ensuring food security. Salt tolerance is known to be a ... -
Development of sustain release matrix tablet of ranolazine based on methocel K4M CR: In vitro drug release and kinetic approach
(© 2011 Journal of Applied Pharmaceutical Science, 2011-10)In this study an attempt was made to design and evaluate oral sustained release matrix tablets of ranolazine using Methocel K4M CR as the retardant polymer. Tablets were prepared by conventional wet granulation technique. ... -
Effect of growth regulators on shoot induction and plant regeneration in tomato (Lycopersicon esculentum Mill.)
(BRAC University, 2011-11)Tomato (Lycopersicum esculentum Miller) is one of the most important winter vegetable crops in Bangladesh. To meet the increasing demand of tomato in Bangladesh, it is necessary to develop new varieties adapted to various ... -
Characterization of an ethanol producing yeast isolate and optimization of ethanol fermentation
(BRAC University, 2011-11)Bioethanol or biofuel as an alternative to fossil fuels has been expanded in the last few decades in the whole world. Saccharomyces cerevisiae is the choice of organism for ethanol production. Characterization of an ... -
Development of Immune response in different age groups of children from Birth to 2 years of age
(BRAC University, 2011-12)Human neonates are markedly more susceptible to infection than are older children or adults. This increased susceptibility is generally believed to be due to immaturity of the immune system to combat pathogens in both ... -
Comparison of memory B-Cell immune responses among different age groups after oral cholera vaccination
(BRAC University, 2011-12)Infection with Nbrio cholerae Olcauses dehydrating diarrhea, although it is now treatable disease with low case-fatality in settings with appropriate medical care . However, cholera continues to impose considerable ... -
The improved (G'/G) -expansion method for the (2+1)-dimensional modified Zakharov-Kuznetsov equation
(© 2012 Journal of Applied Mathematics, 2012)we apply the improved (G'/G) -expansion method for constructing abundant new exact traveling wave solutions of the (2+1)-dimensional Modified Zakharov-Kuznetsov equation. In addition, G'' + λ G' + μG = 0 together with b ... -
New traveling wave solutions of the higher dimensional nonlinear partial differential equation by the exp-function method
(© 2012 Journal of Applied Mathematics, 2012)We construct new analytical solutions of the (3+1)-dimensional modified KdV-Zakharov-Kuznetsev equation by the Exp-function method. Plentiful exact traveling wave solutions with arbitrary parameters are effectively obtained ... -
Abundant traveling wave solutions of the compound KdV-Burgers equation via the improved (G′/G)-expansion method
(© 2012 AIP Advances, 2012)In this article, we investigate the compound KdV-Burgers equation involving parameters by applying the improved (G′/G)-expansion method for constructing some new exact traveling wave solutions including solitons and periodic ... -
Detection of prevalence & characterization of thyroid disorder patients in Dhaka: a survey based study
(BRAC University, 2012) -
New traveling wave solutions by the extended generalized Riccati equation mapping method of the (2 + 1) -dimensional evolution equation
(© 2012 Journal of Applied Mathematics, 2012)The generalized Riccati equation mapping is extended with the basic (G ′ / G) -expansion method which is powerful and straightforward mathematical tool for solving nonlinear partial differential equations. In this paper, ... -
The modified benjamin-bona-mahony equation via the extended generalized riccati equation mapping method
(© 2012 Applied Mathematical Science, 2012)The generalized Riccati equation mapping is extended together with the (G'/G) -expansion method and is a powerful mathematical tool for solving nonlinear partial differential equations. In this article, we construct twenty ... -
Some new traveling wave solutions of the nonlinear reaction diffusion equation by using the improved (G′/G)-expansion method
(© 2012 Mathematical Problems in Engineering, 2012)We construct new exact traveling wave solutions involving free parameters of the nonlinear reaction diffusion equation by using the improved (G ′ /G)-expansion method. The second-order linear ordinary differential equation ... -
New traveling wave solutions of the higher dimensional nonlinear evolution equation by the improved (G′/G) expansion method
(© 2012 World Applied Sciences Journal, 2012)In this article, we investigate the nonlinear evolution equation, namely, the (3+l)-dimensional modified KdV-Zakharov-Kuznetsev equation by applying the improved (G′/G)-expansion method to construct some new traveling wave ... -
Antimicrobials resistance pattern of escherichia coli collected from various pathological specimens
(© 2012 Pakistan Journal of Biological Sciences, 2012)Irrational use of antibiotics is common in Bangladesh. The purpose of the present study was to know the effectiveness of various commonly used antimicrobials against Escherichia coli. Antimicrobial susceptibility test was ...