Browsing Department of Mathematics and Natural Sciences (MNS) by Title

Lactic acid fermentation of pasteurized and powdered milk and optimizing the factors affecting the fermentation process

Sharar, Nowshin Shyara (BRAC University, 2013-12)

Yogurt is a basic dairy product that has been consumed for centuries as a part of the diet, even when its beneficial effects were neither fully known nor scientifically proven. With time, yogurt has been continuously ...

Langmuir dark solitons in dense ultrarelativistic electron-positron gravito-plasma in pulsar magnetosphere

Nonlinear propagation of electrostatic modes in ultrarelativistic dense elelectron-positron gravito-plasma at the polar cap region of pulsar magnetosphere is considered. A nonlinear Schrödinger equation is obtained from ...

Local varieties of Allium Sativum has more effective antimicrobial property compared to imported variety

Parvez, Aakib (BRAC University, 2018-07)

Natural antibiotics or commonly known as herbal plants are used against various small diseases throughout the history of mankind. Now we use synthetic antibiotics. However, these antibiotics are very much ineffective ...

Localized surface plasmon resonance based nanocube-nanosphere dimer biosensor

Ahmed, Arik Rafiquddin (BRAC University, 2017-06)

For this paper, the Localized Surface Plasmon Resonance (LSPR) properties of bimetallic nanoparticles in the shape of a nanocube-nanosphere and consisting of Drude metals was analysed. The refractive index based plasmonic ...

Mathematical models to explain the export of Bangladesh

Haque, Mohaiminul (BRAC Univeristy, 2018-05-24)

Export is a very important medium for a Nation to earn foreign currencies and specially for a country like Bangladesh to maintain their economy and GDP (Gross Domestic Product). In Bangladesh economy, a very significant ...

Medicinal plants: an alternative source for antimicrobials against emerging pathogens

Trisha, Monisha Datta (BRAC University, 2014-08)

Tagetes erecta, an extensively used medicinal plant is a small shrub which grows up to 1-2 mm. The present study was aimed to investigate the antibacterial activity of this locally available plant. Antimicrobial activity ...

Microbial quality of selected sandwiches sold at fast food shops in Dhaka city

Hasan, Trina (BRAC University, 2014-08)

The project was designed to undertake a study on the microbiological status of the different types of sandwich e.g. egg salad sandwiches, chicken salad sandwich, beef sandwich and vegetable sandwich taken from seven ...

Microbial risk assessment of surface waters in Dhaka

Nadeem, Abrar (BRAC University, 2019-03)

The purpose of the research work is to examine the water quality of three major water sources of Dhaka city on basis of the presence of microbial contamination. This research has been carried out for a year and the presence ...

Microbiological qualities of some foods sold in the street and in the mid-level and high-level restaurants

Asma Binte Afzal (BRAC University, 2014-12)

Street foods and restaurant foods play an important role in people’s daily food options as well as their regular nutritional requirements are dependent on these foods, as their ever-growing busy schedule take away the ...

Microbiological status of ice cream and tamarind juice (tok) collected from various locations of Dhaka city

Farah-Tuz, Mumu (BRAC University, 2016-08)

The project was designed to take on a study on the microbiological status of the ice cream and tamarind juice (tok) samples taken from different shops and street vendors that are located in different areas of Dhaka city. ...

Micropropagation of environmental stress tolerant local potato (Solanum tuberosum L.) varieties of Bangladesh

In vitro response of four explants namely, leaf, shoot apex, nodal and internodal, in three stress tolerant Bangladeshi potato varieties, viz. Zaubilati, Shadaguti and Challisha were tested. Of all the varieties, Shadaguti ...

The modified benjamin-bona-mahony equation via the extended generalized riccati equation mapping method

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 ...

Molecular and phenotypic investigations of enzyme mediated resistance profiles against aminoglycoside antibiotics in gram-negative clinical isolates in Dhaka, Bangladesh

Hasib, Saad Hassan (BRAC University, 2018-09)

In recent decades, focus has shifted from notorious Gram-positive pathogens to Gram-negative threats, the majority of which comprise members of the Enterobacteriaceae and Pseudomonadaceae families. These, often commensal ...

Molecular detection of anticancer protein Azurin in native Pseudomonas isolates

Sarwar, Fahim (BRAC University, 2018)

Azurin is a potent anticancer protein which has the ability to interfere in tumor growth. The purpose of this study was to isolate azurin producing native Pseudomonas isolates along with the confirmation of azurin presence ...

Molecular identification of Textile Azo Dye degrading bacterial strains by 16S rRNA sequencing and phylogenetic analysis

Momtareen, Taizina (BRAC University, 2016)

Colours in the form of dyes are an absolute necessity in the manufacturing of commodities. Synthetic dyes and mordants are used by the food, textiles, tanning, and paper industries to name a few. Used to enhance the aesthetic ...

Multi-hospital surveillance and antibiotic sensitivity among bacterial isolates of acute respiratory and enteric infection in underfive children in Dhaka, Bangladesh

Rahat, Asifuzzaman (BRAC University, 2015-07-27)

Acute lower respiratory tract infection (ARI), enteric fever and diarrhea remain the prevalent causes for mortality and morbidity of under-five children in Bangladesh. However, little information is available on true ...

Multiplex PCR (polymerase chain reaction) assay for detection of E. coli O157:H7, Salmonella sp., Vibrio cholerae and Vibrio parahaemolyticus in spiked shrimps (Penaeus monodon)

The coastal aquaculture mainly shrimps constitute major export sector in Bangladesh and is increasingly shaped by international trade conditions and by national responses to those stringent quality and safety standards. ...