Faculty of Science: Recent submissions
Now showing items 181-200 of 317
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Characterisation of the Polysaccharide material isolated from the fruit of Cordia Abyssinica
(2014-06-27)Treatment of aqueous extracts of the fruit of C. abyssinica, containing 0.25% sodium chloride with three volumes of ethanol produced an acidic polysaccharide with a 2% yield, on a fresh weight basis. With a protein content ... -
Optical, thermal and structural characteristics of carbon-in- silica selective solar absorbers coatings synthesized by Sol-Gel technique
(2014-06-27)Carbon-in-silica composite films have been fabricated using sol-gel synthesis of silica and carbon precursor materials, followed by carbonization in an inert atmosphere. Four categories of samples were fabricated and ... -
Geographic Information Systems and Remote Sensing modelling of tree species diversity in the woodlands of Zimbabwe
(2014-06-27)The continued loss of biological diversity has prompted managers and conservationists to find ways of monitoring ecosystems for the purposes of protecting and preventing further loss of biological diversity. Remote sensing ... -
The effects of Trojan Mine waste rock dump and Madziwa tailings dump on the environment
(2014-06-26)The Mazowe Valley contains several of Zimbabwe‘s largest current and closed mining operations. It is densely populated and is also a major agricultural area. The urban and rural areas of Bindura, Goromonzi, Shamva, Marondera, ... -
Optimal stochastic control and risk minimisation in Insurance
(2014-06-17)The thesis examines a generalised problem of optimal control of a firm through reinsurance, dividend policy and convex risk minimisation in the presence of market friction. The major mathematical tool applied is the ... -
Expression of the cDNA Encoding the Pterocarpus angolensis (Mukwa Tree)-Seed Lectin in Escherichia coli and Site-Directed Mutagenesis of the Sugar-Binding Specificity Loop
(2014-06-16)The mannose/glucose specific lectin from Pterocarpus angolensis (mukwa tree) seeds was expressed in Escherichia coli using the pBAD expression system. The expression vector pBADMycHisA was digested with NcoI and filled-in ... -
On Groups which are Products of Weakly Totally Permutable Subgroups
(2014-04-24)This work is a contribution to the theory of products of finite groups. A group G = AB is a weakly totally permutable product of subgroups A and B if every subgroup, U of A such that U ≤ A ∩ B or A ∩ B ≤ U, permutes with ... -
Molecular Typing of Salmonella Serotypes Isolated from Wildlife, Domesticated Animal Species and Humans in Zimbabwe
(2014-04-10)Salmonella enterica serovar enteritidis (S. enteritidis) is one of the major causative agents of diarrhoea in humans and is associated with the ingestion of contaminated animal products such as meat, poultry and poultry ... -
Investigating the impact of climate variability and climate change on tick
(2013-11-22)The impact of climate variability and climate change on tickborne diseases in Chiredzi District was investigated. Ticks are responsible for several diseases (tickborne diseases) that significantly affect livestock, ... -
USING THE PLANNING AND MANAGEMENT MODEL OF LAKES AND RESERVOIRS
(2013-11-21)The future condition of a lake ecosystem can be predicted through the interpretation of past and present responses to change. The objective of this study was to predict the changes in the eutrophic status of Lake Chivero ... -
A STUDY OF THE REMOVAL OF Pb, Cd, AND Cr HEAVY METALS FROM AQUEOUS SOLUTIONS BY MORINGA OLIEFERA SEEDS IN COMPARISON TO CARBONIZED MORINGA OLIEFERA SEED.
(2013-09-25)Moringa oleifera is an abundant and economically important plant that is used for many purposes, and is a potential resource in many ways; charcoal production is one of them. The uptake for lead, chromium, and cadmium from ... -
Determination Of Nitrogen And Sulphur Oxides Produced During Combustion Of Jatropha Cake Bio-Pellet
(2013-09-25)Jatropha cake is a promising renewable source of energy, its use as a combustible fuel makes it an important source of potentially harmful gases to the environment and the health of the users. It is important to determine ... -
Adansonia digitata distribution, structure, abundance and elephant damage across Gonarezhou National Park, southeast Zimbabwe.
(2013-09-25)An assessment was made to determine density, structure and distribution of baobabs across Gonarezhou National Park (GNP) management strata, southeast Zimbabwe. The three GNP management strata coincide with a soil group ... -
An Interactive Virtual Tour of Cultural Heritage Sites: A case study of the Great Zimbabwe National Monument
(2013-09-23)The ruins of Great Zimbabwe are a unique testimony to the Bantu civilization of the Shona between the 11th and 15th centuries (UNESCO, 2010). The study focuses on how the use of virtual environments can be applied to ... -
Pest status of the larger grain borer, prostephanus truncatus (horn) (coleoptera: bostrichidae) in zimbabwe and an assessment of inherent susceptibility of selected maize varieties to the pest
(2013-09-23)This study determined the occurrence and importance of Prostephanus truncatus (Horn), the larger grain borer (LGB) (Coleoptera: Bostrichidae) in relation to other storage insect pests in farm-stored maize grain samples ... -
THE INFLUENCE OF LARGE, VEGETATED TERMITARIA AND LARGE HERBIVORES ON SPIDER (ARANEAE) DIVERSITY IN MIOMBO WOODLANDS
(2013-09-23)This study reports on spider species richness, abundance, and spider species community composition, in relation to differing herbivore impacts in miombo woodlands that have large vegetated termitaria. The chosen woodlands ... -
Bark stripping by chacma baboons (papio ursinus) in relation to daily patterns of activity, feeding behaviour and home range in a pine plantation in Eastern Zimbabwe
(2013-09-06)This study reports daily activity pattern, home range size, daily travel distances and feeding behaviour for a troop of chacma baboons (Papio hamadryas ursinus) inhabiting a pine plantation in Eastern Highlands, Zimbabwe. ... -
Using wireless sensors for efficient data collection and optimum water usage in precision irrigation.
(2013-07-10)The general ideology of a project is how to optimize water usage in irrigation based on the integration of measured soil moisture levels, temperature, and radiation, humidity and plant diameter. The research focused on the ... -
Towards minimising human factor in end-user information security
(2013-06-04)Today there are many hardware and software solutions to enhance information security, but there is limited research regarding the human factor in information security. Research has revealed that the application of information ... -
Host Discrimination by the Green Peach Aphid (Myzus persicae Sulzer) Complex and Relative Importance of Non-Colonizing Aphid Species in the Transmission of Bushy-top and PVY in Tobacco
(2013-06-04)This study focused on host preference by the tobacco-adapted form of Myzus persicae, suitability of different host plants to settling and reproduction of the aphid (M. persicae) and on monitoring aphid flight patterns using ...
