Department of Mathematics and Natural Sciences (MNS): Recent submissions
Now showing items 421-440 of 687
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Structural and AC magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4(x=0.30, 0.45) due to Mn substitution
(BRAC Univeristy, 2017)Structural and magnetic properties of (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4 ferrites(x=0.3, x=0.45) were investigated and it was prepared by solid state reaction methods. Various chemical compositions were calcined at 950C, and ... -
Permeability measurements of Ni0.4Cu0.15Zn0.45Fe2O4 using impedance analyzer
(BRAC Univeristy, 2017)This internship presents the work of Ni0.4Cu0.15Zn0.45Fe2O4 sample preparation and its permeability measurements at different sintering temperature using 6500B impedance analyzer. Firstly ‘’Ni0.4Cu0.15Zn0.45Fe2O4‘’ sample ... -
Internship on (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4 sample preparation and calcination
(BRAC Univeristy, 2017)The sole purpose of this internship is to provide us hands on experience on how to measure, prepare and characterise a sample of the (Ni0.4Cu0.15Zn0.45)1-xMnxFe2O4 ferrites (x=0.3, x=0.45) which was further hand milled ... -
Chikungunya virus outbreak in Dhaka, Bangladesh in 2017 - a seroprevalence study
(BRAC Univeristy, 2018-01)Chikungunya is a viral disease transmitted by mainly Aedes aegypti and Aedes albopictus mosquitoes. In 2017, Chikungunya virus was introduced into the Dhaka city of Bangladesh and triggered a massive outbreak which affected ... -
Screening for silver resistant silE gene in Klebsiella pneumoniae isolated from wound and burn patients
(BRAC Univeristy, 2017-11)Background: Bacteria are one-celled organisms cause various infectious disease. Wound site is more susceptible to the pathogenic bacteria and those bacteria becoming resistant to antibiotic day by day, a serious threat to ... -
Isolation of cellulolytic bacteria from soil sample and production of cellulase and its purification
(BRAC Univeristy, 2018-03)The cellulase producing bacteria were isolated from cow dung and characterized by morphological and biochemical analysis. Hence, studies pursue to unfold a novel cellulase that can overcome existing challenges in biorefinery, ... -
Determination of the prevalence and antibiotic susceptibility pattern of the members of Enterobacteriaceae family from the urine samples of UTI suspected patients from a diagnostic center in Dhaka city
(BRAC Univeristy, 2018-03)Urinary Tract Infection (UTI) defines a condition in which the urinary tract is infected with a pathogen causing inflammation which is a common, distressing and occasionally life threatening condition. UTI affects people ... -
Bacteriological profile and its antibiotic susceptibility in patients with Urinary Tract Infection in a diagnostic center in Dhaka
(BRAC Univeristy, 2018-03)Urinary tract infection (UTI) is a common bacterial infection known to affect the different parts of the urinary tract and the occurrence is found in both males and females. Despite the fact, that both the genders are ... -
Determination of prevalence and antibiotic susceptibility pattern of bacteria isolated from kitchen utensils of BRAC university of Dhaka, Bangladesh
(BRAC Univeristy, 2018-03)Kitchen utensils become contaminated by people, food, pet or other environmental sources and cross contamination occurs. This study aimed at isolating, identifying, determining antibiotic susceptibility pattern and ... -
Analytical solution of non-linear partial differential equation by using the extended (𝐆′/𝐆) expansion method with non-linear auxiliary equation
(BRAC Univeristy, 2018-03-01)Among some new methods, these were introduced to find the exact solution of Non-Linear Partial Differential Equations (NLPDEs), (G'/G) expansion method proposed by Mingliang Wang, is straightforward and easy to handle ... -
Comparison of the effect of garlic with the effect of antibiotics on the survival and growth of broiler chickens
(BRAC Univeristy, 2018-01)The aim of the present study was to compare the effect of garlic as feed additives with the effect of antibiotics on the survival and growth of broiler chickens. The massive use of the antimicrobial drug in poultry industries ... -
Determination of prevalence and antibiotic susceptibility pattern of bacteria isolated from household and restaurant kitchen utensils of Dhaka, Bangladesh
(BRAC Univeristy, 2018-03)The kitchen is one of the most crucial areas that harbors and transmits infection. This study aimed at isolating, identifying, determining antibiotic susceptibility pattern and investigating antimicrobial activity of ... -
Travelling wave and non-travelling wave solutions of nonlinear evolution equation via new generalized and Improved (G'/G) - expansion method
(BRAC Univeristy, 2018-03-01)In this thesis, we have applied the new extension of the generalized and improved ( G' / G) - expansion method in order to find the explicit solutions of non-travelling and travelling wave solutions of Fisher equation. ... -
Nonperturbative phenomena in field theory and gravity, and use of Borel summation to capture nonperturbative information
(BRAC University, 2017-12)This thesis addresses non-perturbative phenomena and techniques to analyze nonperturbative problems. First, we discuss the simplest non-perturbative example in quantum gravity: blackholes, and how they non-perturbatively ... -
In vivo propagation of monoclonal antibodies in ascites fluid produced in BALB/c mice: characterization and diagnostic application for the identification of Vibrio cholerae O1
(BRAC University, 2017-07)Monoclonal antibodies are powerful tools in biomedical sciences. High affinity of binding domains of monoclonal antibodies towards a specific antigen enables their use in diagnostic assays and kits to identify particular ... -
Designing and performance evaluation of a solar water pumping system
(BRAC University, 2016-01)This study includes the detailed designing of solar water pumping system and its performance evaluation. Water pumping system is an ancient procedure and many methods have been established. Human energy, animal power, ... -
Detection of extended spectrum β-lactamase (ESBLA), screening of AmpC β-lactamase and detection of CTX-M and aacA-aphD genes among the multidrug resistant bacteria found in two tertiary hospitals of Dhaka city
(BRAC University, 2017-05)Klebsiella spp. and Pseudomonas spp. are opportunistic pathogens that are responsible for severe infections. These infections can be treated by antibiotics of different classes individually or in combination. However, ... -
Comparative study of the presence of stx1 and stx2 genes from clinical and environmental samples of Shigella
(BRAC University, 2017-03)Shigellosis, a disease caused by Shigella spp. occur because of the presence of stx1 and stx2 genes. Shigellaspp. Sometimes escapes detection by the traditional culture methods. Bacterial isolates were chosen on the basis ... -
Antimicrobial activities of Aloe vera leaf and clove extracts, their comparison with commercial antibiotics and molecular analysis of genes involved with multidrug resistance in bacteria
(BRAC University, 2017-06)The need for new, potent antimicrobial agents from natural sources is increasing because of the growing cases of multidrug resistance in clinically relevant organisms. The purpose of this study was to investigate in vitro ... -
Study of a rare medicinal plant Artemisia nilagirica: phytochemical screening, antioxidant properties and antimicrobial activities
(BRAC University, 2017-01)Artemisia nilagirica is an aromatic herbaceous plant belongs to Asteraceae family used in traditional medicine for the treatment of various ailments. Locally the plant is known as Nagdan or Nagdamani. This plant has been ...