ABSTRACT This study was initiated to identify the dominant microbial species and investigate their activities during the fermentation of soybeans to daw adaw a. The dominant microorganism s present in both the boiled and roasted soydaw adaw a, which were spontaneously fermented for 72 h, were isolated, characterized and identified using an API kit. The proteinase and a -a m y lase activities o f the microorganism s were determined. Q quality indices such as pH, m oisture, protein and fat con...
ABSTRACT The purpose of this research work is to evaluate the variation (or dependence) of the timer error as a function of the teletherapy treatment parameters such as treatment field size (FS) and treatment depth (d) for an SSD setup and compare the method used for others. Teletherapy timer error measurements were performed in a full scatter, large water phantom using a 0.6cc ionization chamber and average photon energy of 1.25MeV from a cobalt-60 unit at an SSD of 100cm at various field ...
ABSTRACT The research was carried out to study diversity (phenotypic and genetic) and population structure of cowpea germplasm assembled from the DPEB and SARI. A total of 78 cowpea accessions from these two sources were used for the study. Data was collected on twelve vegetative and reproductive traits, four polyphenols, crude protein, seven mineral elements, nineteen amino acids and three SSR markers. Methanolic extracts of pulverized cowpea seeds were used to determine concentrations of p...
ABSTRACT Cotton is the URT’s largest export crop after coffee and accounts for 14 percent of its total agricultural exports. Forty percent of Tanzanian’s livelihoods are linked to the cotton sector, which also provides livelihoods for over 500,000 rural households. Despite policy makers‘ efforts to boost production and productivity, yields and the technical efficiency of ginneries remain low. Nonetheless, there is a huge potential for increasing production and exports – especially sin...
Abstract: The properties of trimer Cs3X3 and tetramer Cs4X4 (X = Br, I) molecules have been studied using DFT with B3LYP5 functional and MP2 and MP4 methods. Two equilibrium geometrical structures of trimers, hexagonal (D3 h) and “butterflyshaped” (Cs), and one for tetramers, distorted cubic (Td), are confirmed to exist; geometrical parameters and vibrational spectra are determined. The relative concentration of Cs3X3 isomers has been evaluated; the butterfly-shaped isomer dominates over ...
Abstract This study focused on poultry farmers’ preference of information sources for accessing poultry management information in three rural districts of Tanzania. A mixed methods research design was deployed. Questionnaires and focus group discussions were used to collect quantitative and qualitative data respectively. Responses to the questionnaire which was administered by researchers in faceto- face meetings were received from 360 farmers, and 160 farmers participated in 16 focus group...
ABSTRACT Kenkey is a traditional fermented cornmeal product that is native to the coastal regions of Ghana. The traditional method of cooking Ga-kenkey takes a lot of time and features a high degree of variability in the sensory attributes of the kenkey balls. A major source of variability is due to the way the Ga-kenkey balls are arranged in the cooking pot in relation to the amount of water used in cooking. The objective of this study was to develop a cooking process that would reduce the...
ABSTRACT This study is conducted in the aim to figure out the demographic factors that fueling prevalence of H.I.V/AIDS in 2011/2012-Mbeya region. Demographic data of the cross-sectional years 2011/2012 is used. The data encompass male and female individual age group of 15-49.The binary logistic regression model was employed and demographic factors that were considered to have an impact on the prevalence of the epidemic were included in my analysis. The result shows that demographic variables...
ABSTRACT This study, has intended to design a model for an Integrated Hospital Information System in Tanzania, and was conducted at four hospitals from Dodoma and Manyara regions respectively. A sample of 90 respondents participated in the study from a purposive and non purposive sampling. A Statistical Package for Social Science (SPSS) was used to analyze the quantitative data. Findings have revealed that, Integrated Hospital Information System (iHIS) in Tanzania requires infrastructure, sys...
ABSTRACT A number of phenomena in modern science can be conveniently described in terms of problems for parabolic equations with Bessel operator and nonlocal conditions. The purpose of this study is to give a survey of classical and nonclassical problems for parabolic differential equations with Bessel operator, give introduction to several different research approaches and show how the choice of a method depends on the nature of the problem. Another aim is to study the solution to the proble...
Abstract In this study, sodium cyanide leaching technology has been used to recover gold from tailings that are used by Mawelo small scale miners, located in Chunya district, Mbeya region, Tanzania. The sample collected was sent for analysis of mineralogical composition and average particle size. The fractions retained on each sieve, which ranged 180 – 500 μm were used in the leaching experiments. The leaching was implemented using sodium cyanide with concentration in the range of 500 – ...
ABSTRACT This study aimed at expanding e-commerce activities (application) on Social Network Application (SNA) by entrepreneurs beyond products/services advertisement in Tanzania. Surveys show that there is a large number of entrepreneurs and customers who are not using e-commerce for business and shopping activities in Wazo Ward. Instead, the majority use SNA. Therefore, this study used the Technology Acceptance Model (TAM) to determine users’ perception on the use of SNA. The study was ba...
Abstract Evaluation of customer satisfaction differs from one study to another. Studies have been differing with their focus and coverage. Most of studies focused on evaluating factors influencing customer satisfaction or associate customer satisfaction and quality of services. This paper used logistic regression to develop customer satisfaction model for Precision Air. Five dimensions or variables have been considered: on time performance; aircraft safety; schedule integrity; on board servi...
Abstract We perform a detailed physical analysis for a class of exact solutions for the Einstein-Maxwell equations. The linear equation of state consistent with quark stars has been incorporated in the model. The physical analysis of the exact solutions is performed by considering the charged anisotropic stars for the particular nonsingular exact model obtained by Maharaj, Sunzu and Ray. In performing such an analysis we regain masses obtained by previous researchers for isotropic and anisotr...
We describe a novel and cost-effective method to enhance the photo-conversion efficiency of blended PbI2/TiO2 perovskite photovoltaic cells by pre-annealing the constituent film components during the fabrication. This approach is also unique because it does not presume a strictly controlled fabrication environment. The average conversion efficiencies of the cells of the final devices were observed to rise from 6.6% to 10.8% for annealing temperatures of 60 ◦C to 100 ◦C, respectively. Anne...