ABSTRACT Background: Wound infections mostly caused by Pseudomonas are on the increase in hospitals in Ghana. Most of these infected wounds are very difficult to treat with available antibiotics. This failure of treatment has resulted in increased need for healthcare, undue financial burden on both hospitals and patients and finally death of many of these patients. This has become a source of worry for both patients and healthcare providers in Ghana. General Aim: The main aim of this study w...
ABSTRACT (' V ) Acetylcholinesterase (AChE) from adult Onchocerca volvulus was extracted in either 5OmM Tris-HCl, containing Triton X-100 (detergent buffer) or plain 50mM Tris-HCl (lowsalt buffer) Gel chromatography on Sephacryl S-300 column, of both the detergent buffer and the low-salt buffer extracts gave two components each./ The two components of the detergent buffer gave purification factors of 12 and 13 folds and yields of 22 and 23% respectively; those of the low-salt buffer had puri...
ABSTRACT Partial Differential Equations (PDEs) of parabolic type arise naturally in the modeling of many phenomenon of in various fields of physics, engineering and economics. The main aim of this research is to study finite difference methods with numerical solutions of this class of equations. Both one and two dimensions have discussed in this research. I have investigated stability and convergence analysis of different schemes and obtained convergence error estimates. It is important to n...
ABSTRACT Viterbi Algorithm Decoder Enhanced with Non-transmittable Codewords is one of the best decoding algorithm which effectively improves forward error correction performance. HoweverViterbi decoder enhanced with NTCs is not yet designed to work in storage media devices. Currently Reed Solomon (RS) Algorithm is almost the dominant algorithm used in correcting error in storage media. Conversely, recent studies show that there still exist low reliability of data in storage media while the ...
ABSTRACT State owned teachers‟ colleges in Tanzania have been teaching ICT to student-teachers in an environment that is more or less the same to all teachers‟ colleges. However, little is known about what exists in the ICT teaching and learning environment in the diploma teachers‟ colleges. This study assesses the ICT teaching and learning environment to see whether it matches the aims of introducing ICT to teacher training. The study used 280 respondents from five teachers‟ college...
ABSTRACT Grammar checker is a writing assistance tool developed for checking rules of the Natural Languages automatically. Every natural language has a set of rules which are used to guide users of that language. Swahili is one of the most widely spoken languages in the East African countries and specifically in Tanzania. Efforts have been made so far towards the development of the tool. However, to the best of our knowledge there is no assistance tool developed and reported for detecting th...
ABSTRACT This study entitled “Determining factors contributing to slow adoption of District Health Information System Application programme on health services in Tanzania” was conducted in Chamwino District Dodoma region. Specifically, the study was done at Buigiri, Iringa Mvumi, Chamwino, Haneti, Handali and Mpwayungu health centers were selected. Results from this study indicated that; the impact of DHIS Application programme on health services in Tanzania is increasing. The contents o...
ABSTRACT This study presents the significant increase in skin dose caused by the presence of thermoplastic immobilizing masks used for positioning and immobilization of patients during cancer treatments in the head and neck region. Made from organic materials, thermoplastics become soft and pliable when heated and forms a rigid replication of the patient’s anatomy as it cools down. The use of the mask plays a key role in achieving the therapeutic aim in head and neck treatments but can as ...
ABSTRACT This study investigated the corrosion resistance of steel reinforcement in two types of concrete mixtures – ordinary Portland (OPC) used for concrete and clay pozzolana cement (CPC) used for concrete. These two concrete types were exposed to 3% and 5% (W/V) of Sodium Chloride (NaCl) and 3% (W/V) Calcium Hypochlorite (Ca(OCl)2) that acted as corrosion media. Mechanical properties and electrochemical analysis were performed over 1, 7, 15 and 23 days. The results indicated that concr...
ABSTRACT We obtain new exact solutions to the Einstein field equations for anisotropic neutral stellar objects. In our dissertation, we are considering a quadratic equation of state and a choice of measure of anisotropy and metric function adopted from Sunzu’s work. We transform the Einstein field equations for neutral anisotropic matter by adopting the Durgapal and Bannerji’s new variables. We generate the exact solution and hence obtain the gravitational potentials and matter variables...
ABSTRACT This dissertation is a study of finite difference numerical methods that are based on the principle of discretization. In chapter one we present the general overview of partial differential equations, Initial boundary value problems and derivations of Finite difference methods for one dimensional heat equation. A brief discussion of the truncation error is also presented. The second chapter is concerned with consistency, stability and convergence of the finite difference schemes for...
ABSTRACT In most tropical countries including Ghana and Cameroon, knowledge of ecological importance of mangrove ecosystem in terms of litter production, structural characteristics, water and soil properties, has been qualitatively well documented and recognised. However, there is scanty quantitative scientific data to back this up. The purpose of this research dissertation was to study and compare the mangrove ecosystems of Cameroon and Ghana two contrasting coastal zones, using parameters ...
ABSTRACT The diffusion of information generated in Social Networks Sites is the result of more people being connected. The connected people chats and comments by posting contents like images, video and messages. In fact the social networks have been and are useful to communities in such they bring relatives together especially in sharing experiences and feelings. Although social networks have been beneficial to users, some of the shared messages and comments contain sexual and political hara...
ABSTRACT This study aims to assess the fluoride adsorption characteristics of the two clay minerals categorized into ten groups i.e bentonite alone (B), bentonite impregnated with 1% sodium hydroxide (BS), thermally activated bentonite (800 0C) (BAA), bentonite impregnated with iron (BI), bentonite impregnated with aluminum (BA), mica alone (M), mica impregnated with 1% sodium hydroxide (MS), thermally activated mica (800 0C) (MAA), mica impregnated with iron (MI) and mica impregnated with a...
Geogenic groundwater pollution in volcanic rock aquifer systems on the eastern, western and northern flanks of mount Meru, Tanzania – special reference to fluoride