Continuous improvement is a key factor for survival in today’s turbulent business environment. Correspondingly, in today’s business world, software is everywhere. In the whole process of software development, testing is a phase that is often forgotten. Everybody assumes that once the software is developed, it will work flawlessly. However, it often happens not to be so. Moreover, when it does not, we are all unsatisfied and frustrated. Problems with software are a frequent occurrence...
ABSTRACT A cross sectional study was conducted to investigate the prevalence of toxoplasmosis in small ruminants and associated human and animal exposure risk factors. Serological detection of Toxoplasma antibodies was done in 300 goats and 100 sheep sera by ELISA test (Interlab, São Paulo, Brazil). Information on risk factors was collected by interview method, using structured questionnaires. The overall prevalence of toxoplasmosis was 27 and 12% in sheep and goats respectively. Dairy goat...
The presence of aromatics in fuel deters ultra-low sulfur fuel production. Consequently the researcher’s interest has involved the de-aromatization of fuels. Dearomatization would ultimately improve the quality of the fuels in terms of density, cetane number, viscosity etc. In this study, solvent extraction was adopted to de-aromatize a feedstock sample of 20.1 % aromatic and 166 ppm sulfur using acetonitrile. The extraction was performed at low temperatures 25, 35 and 45 °C and ambi...
Secure Voting System‘ is heart of any democracy. There are number of nationwide voting system adopted all over the world, but each of them has their own shortfalls. The remote Internet voting systems still suffer many problems. These are some reasons that, manual voting is still in practice in many developing and developed nations in this internet era. Thus, complete, strongly secured and user friendly ‗E Voting System‘ is need of time. The aim of this thesis is to design a secure ...
ABSTRACT This thesis, Design-Reality Gaps in Open Source Information Systems Development: An Action Research Study of Education and Healthcare Systems in Tanzania, presents a theoretical and empirical informed analysis of Free Open Source Software (FOSS) development in the domain of health and education information systems in Tanzania. Historically, FOSS development has been driven by user-developer communities who are also the users of FOSS applications. The use of Foss applications in ...
A great number of people all over the world suffer from diabetes. Understanding the mechanisms by which amino acids regulate insulin secretion in vivo may reveal novel sites for targeting drugs for the therapy of type 2 diabetes in the future. A descriptive analytical cross-sectional and hospital based study was done. The objectives of this study were to determine in the levels of selected amino acids in patients with diabetes type 2 and to measure the serum levels of insulin in Sudanese...
In Tanzania, and in East Africa in general, bioassessment methods for monitoring and assessing riverine ecosystems are not yet in place. This thesis describes the development of a macroinvertebrate-based bioassessment method for assessing the degree of anthropogenic disturbance in Tanzanian rivers. The hypotheses that, ‘macroinvertebrate assemblages reflect disturbance in river systems’; ‘rivers with similar abiotic features have similar macroinvertebrate assemblages’; and ‘spatio-t...
ABSTRACT e-learning, as defined to be the use of information and communications technology (ICT) for supporting the educational processes, has motivated Tanzania to apply ICT in its education system. Tanzania secondary schools in rural areas are geographically and socially isolated. Rural Tanzania secondary schools face a number of problems including ways in getting learning materials, as well as inadequacy in qualified teachers. The impact of these problems is poor performance in National E...
This study introduces the mechanical elements that are the main components in the dynamic modeling of mechanical systems. It discusses the electrical elements of voltage and current source, resistor, capacitor, inductor, and operational amplifier. We derive mathematical models for electrical systems. The transfer function, enables connecting the input to the output of a dynamic system into the Laplace domain for single-input, single output, multiple-input and multiple output systems. It ...
The olefin metathesis was discovered incidentally and independently in 1950s by different researchers on their attempt to polymerize olefins by the Ziegler process [1-5]. The earliest discoveries were the basic exchange olefin metathesis of the inter-conversion of propylene, ethylene and butane-2 as well as ROMP of norbornene and cylcopentene. However, the connection between the two types of reactions was not immediately apparent mainly because different catalysts and conditions were generall...
There is a big industrial growth in Sudan with economical development, so there is a big need for transportation trucks and Vehicles. The batteries are very important part of these vehicles and it's under control of ISO since Sudan is a member of COMESA. SARIA factory had been chosen as field of application of this study, because it is the pioneer and the singlet one in Sudan. Based on the above economical and technical considerations, the goal of thesis is evaluation of the technologi...
The power consumption of physical and virtual machines is a major challenge for small to large scale cloud computing data centers. Tow states of the virtual machine, active state if selected by cloudlet and idle state ifnot selected. Two typed of works applied which are existing work and proposed work. In existing work non-power aware data center, the power consumption used time-shared data center that discarded cloudlet file size to selected VMs. To performance enhanced of power consu...
ABSTRACT Orf virus (ORFV) is a member of the parapoxvirus genus that causes orf, a zoonotic and epitheliotropic highly contagious disease mainly affecting sheep, goats, wild ruminants and humans. In the present study, an outbreak of a disease in goats with clinical signs suggestive of orf in 11 flocks with a total of 259 goats was investigated between May and June 2015. Eight villages in districts of Bagamoyo (2), Ilala (1), Kinondoni (1) and Kisarawe (4) in Coast and Dar es Salaam regions o...
ABSTRACT Since the discovered of Campylobacter in 1913, is known to cause diseases in human. Investigations were done in broiler poultry by culture method, biochemical molecular technique followed by antimicrobial susceptibility of thermophilic Campylobacter sp in Morogoro Municipal, Tanzania. The objectives of the study were to establish prevalence of thermophilic Campylobacter by molecular and biochemical approach followed by antimicrobial susceptibility at each stage of broiler production...
The aim of the study is to find the best location for an emergency hospital in the West Nile, which is easy to reach and reduces the time of arrival due to its economic, social and vital importance. The use of GIS techniques' as information systems Geography plays an important role by providing an environment for planning, organization and decision-making. In this research addressed the identification of current and new hospital locations to ensure the accessibility and accessibility o...