Faculty of Science e-Theses Collection: Recent submissions
Now showing items 141-160 of 257
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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 ... -
A Human Health Risk Assessment of Heavy Metal Bioaccumulation in Nile Tilapia Oreochromis niloticus from Lake Chivero, Zimbabwe
(2013-06-04)Lake Chivero’s catchment covers the urban areas of Harare and Chitungwiza, which contribute immensely to the pollution of the lake through urban runoff, sediments, sewage effluents, industrial effluents and leachate from ... -
Effectiveness of an integrated m-health platform in disease control.
(2013-06-04)Many countries signed to the Millennium Development Goals (MDGs) which need to be achieved by 2015. These MDGs touch on health among other things and it has been noted that developing countries, including Zimbabwe, are ... -
Impact of agricultural intensification on biodiversity and secondary succession in the Mid-Zambezi Valley, Northern Zimbabwe
(2013-06-04)In this thesis, the impact of woodland clearing, cultivation intensity and fallowing on tree species diversity, physiognomy and dominance was tested in the semi-arid mid-Zambezi valley, northern Zimbabwe. This study ... -
Effects of Glutathione depletion on male fertility.(A prospective study on male Sprague Dawley rats)
(2012-09-13)The objective of this study was to investigate the role of glutathione depletion on male fertility in rats. Forty male Sprague Dawley rats were divided into two groups. Twenty rats were administered paracetamol 10mg/2mls ... -
Thermal regulatory problems associated with playing soccer
(2012-09-13)Playing soccer in a hot environment without drinking fluids is likely to cause dehydration and consequently heat stress related conditions and poor performance. The objective of this study was to determine the amount of ... -
Development of irrigation guidelines for citrus under drip irrigation in Zimbabwe
(2012-09-13)This study was carried out to develop drip irrigation guidelines for citrus in Zimbabwe. In order to achieve this, the average ETo values for the study site were derived from climatic data. The study, which was carried out ... -
Maize yield prediction using seasonal weather forecasts and a crop growth simulation model.
(2012-09-13)Maize production in marginal tropical regions is at great risk from rainfall variability. Farmers would benefit from the ability to forecast production likelihood. In this study we sought to develop a simple maize ... -
Effects of shading on leaf temperature, photosynthesis and water relations of two navel orange [Citrus sinensis (L.) Osbeck] cultivars
(2012-09-13)Between January and February 2007, diel variability in carbon dioxide (CO2) and water vapour (H2O) exchange with leaf temperature on four potted 5-year-old navel orange trees [Citrus sinensis (L.) Osbeck] on an open-air ... -
The agroclimatic potential of fuel crops in Zimbabwe
(2012-09-13)The main objective of this thesis was to assess the agro-climatic potential of fuel crops (typically sorghum) in Zimbabwe using a revised map of solar radiation received at the surface. To achieve this objective climatic ...
