ABSTRACT The objective of this research is to ascertain if it is feasible to replicate tomotherapy treatment with telecobalt machine based on phantom studies. To replicate gantry motion around a patient during tomotherapy treatment, the phantom was placed on a fabricated turn-table capable of translational and rotational motions while the gantry of the telecobalt machine was kept constant. The treatment simulations were performed with Cirus cobalt 60 teletherapy machine at the Komfo Anokye T...
ABSTRACT Nsiho kenkey is a bland tasting stiff porridge produced from dehulled maize grains and consumed mainly in some parts of Southern and Eastern Regions of Ghana. This study was carried out to identify the microorganisms responsible for nsiho fermentation and to develop a starter culture for its controlled fermentation in order to improve the safety and quality of the product. A brief field study was carried out in two districts in the Eastern Region of Ghana to observe the processing o...
ABSTRACT As a developing countJy, Ghana is faced with the problem of management of her solid waste. Disposal ofsolid waste in open dumps and swampy areas in a bid to reclaim the land is the most common method used. This research was carried out at the Cape Coast Municipality to investigate the effect of disposed solid waste on the environment. The methodologies are purposive sampling for the solid waste evaluation, titrimetric and spectrophotometric for the analysis of the leachate from the ...
ABSTRACT The effect of composting substrates prepared from four agricultural wastes: corn cob, oil palm fruit fibre, rice husk and sawdust on growth, yield and nutrient content of oyster mushroom, Pleurotus ostreatus, (Jacq. ex Fr.) Kumer was investigated. One set of the substrates was decomposed and the other set was not. The mother spawn, obtained from oyster mushroom fruit body tissues and spores from two sources and a spawn from a third source, cultured on Potato Dextrose Agar medium grew...
ABSTRACT The objective of this study is to present empirical evidence obtained through household survey in order to understand which factors are associated with children who obtain a birth certificate, and thus realize their right to a name and legal identity. Discriminate analysis was used to determine the factors that explain the differences between households who register their children and those who do not. 13 independent variables were analyzed against two levels of the dependent variabl...
ABSTRACT Technology is now a compelling tool in teaching and learning, offering constructivism to education. Its use across all disciplines and Science education cannot be excluded. In view of this, using a descriptive research design, this study investigated Preservice teachers use of technology and constructivist events in colleges of education in the central region, Ghana. Data were collected through the use of questionnaire from a sample of 60 preservice teachers who were on their out pro...
ABSTRACT A three-dimensional (3D) laser imaging system based on digital holography has been used as a tool for testing digital holography (DH) in the infrared (IR) range in several configurations; transmission and reflection mode. The feasibility of digital holography in the infrared region was demonstrated using two beam interferometric technique for recording holograms both in reflection and transmission type geometry which employs a pyroelectric sensor array detector. The materials used ...
ABSTRACT Mitochondria are organelles present in the eukaryotic cell that produce about 90% of the energy required by the cell through oxidative phosphorylation. They also play vital roles in other metabolic processes in the cell. They have unique features that make them sensitive to a number of xenobiotics. Thus, they serve as primary or secondary targets for these xenobiotics. Medicinal plants contain a range of phytochemicals which also have the potential to interfere with mitochondrial fun...
ABSTRACT Glutathione and enzymes such as glutathione S-transferase (GST), glutathione reductase (GR) and superoxide dismutase (SOD) play crucial roles in defending the cell against reactive oxygen species (ROS) which have been implicated in HIV replication. It has been shown that cells infected with HIV generate large amounts of inflammatory products such as superoxide anions, peroxynitrites and other ROS, and is accompanied by the deregulation of antioxidant enzymes. The pro-oxidative stress...
ABSTRACT Comparative studies have been done on the dynamics and management of the fish populations in Abrubi lagoon (closed lagoon) and Densu delta (open lagoon) in Ghana from May 1994 to April 1996.Some environmental parameters of the lagoons, which affected fish populaations were also monitored. There was a noticeable increase in temperature during the dry season (November to March) in both study areas. Temperatures ranged from 26°C to 33°C. On the whole, changes in pH were gradual and st...
Abstract This thesis presents a detailed description and analysis of Bregman’s iterative method for convex programming with linear constraints. Row and block action methods for large scale problems are adopted for convex feasibility problems. This motivates Bregman type methods for optimization. A new simultaneous version of the Bregman’s method for the optimization of Bregman function subject to linear constraints is presented and an extension of the method and its application to solving...
ABSTRACT The Dahomeyide suture zone marks continental amalgamation between the Paleoproterozoic West African Craton (WAC) and the Sahara Metacraton (SMC). This suture zone of the PanAfrican orogenic belt is encrusted by UHP/HP metamorphic rock bodies and associated ultramafic igneous plutonic rocks in SE Ghana through to Togo and Benin. The main identified rock types consist of mafic granulites (hornblende-garnet-pyroxene gneiss and pyroxenegarnet-hornblende gneiss), felsic gneiss, eclogite a...
ABSTRACT V Yeast mating type locus gene alpha2 (MATa2), Yeast G protein complementing gene ( YGC1) and minichromosome maintenance gene (M C M 1) have been identified by isolation of plasmids that are able to complement or suppress a gpa1::HIS3 mutation. MATa2 and YGC1 rescue both MATa and M A Ta-gpa1::HIS3 haploid cell types whereas MCM1 complements only MATa gpal::HIS3 cell type. MATa2 is known to be a general repressor and a determinant of both haploid and diploid cell types. MCM1 is known ...
Abstract Background: Mycobacterium africanum (MAF) and Mycobacterium tuberculosis sensu strico (MTBss) are two members of a closely related bacterial species of Mycobacterium tuberculosis complex (MTBC) that causes tuberculosis (TB) in humans. However MAF is known to cause up to 50% of human pulmonary TB in West Africa only. MAF has been subdivided into MAF West African 1 (MAF1) (Lineage 5) and MAF West African 2 (MAF2) (Lineage 6), as two distinct phylogenetical lineages within MTBC. Subsequ...
Most experimental situations call for standard designs that can be constructed with many statistical software packages. In some situations, however, standard designs are not appropriate or practicable. Computer-aided designs are experimental designs that are generated based on a particular optimality criterion and are generally optimal only for a specified model. In this work designs are generated for non-standard multifactor experiment using D-optimality criterion. The experiment invo...