Browsing Faculty of Science ETDs by Title
Now showing items 1-20 of 257
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The Abundance and Biting Behaviour of Anopheles merus (Dönitz) in Gokwe South District, Zimbabwe
(2012-08-29)Malaria is a major public health problem in most sub-Saharan countries. Anopheles merus (Dönitz), a saltwater breeding member of An. gambiae complex, is involved in low rate malaria transmission in this region. In this ... -
Accuracy assessment of MODIS fire products in African Savanna woodlands
(University of Zimbabwe, 2016-06)Fire poses a continuous threat to forest ecosystems and can dramatically reduce valuable timber species in forest woodland areas. The occurrence of fire in Baikiaea plurijuga woodlands warrants the need of an active and ... -
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 ... -
Adsorption of volatile n-Alkanes and polar organic solvents by water hyacinth (Eichhornia crassipes) root biomass: Thermodynamics, mechanism and effect of chemical treatment
(2017-07)The use of lignocellulosic materials as biosorbents has both environmental and economic benefits. They are biodegradable, safe to use and most importantly renewable and less costly. The objectives of this present study ... -
Adsorption of volatile n-alkanes and polar organic solvents by water hyacinth (Eichhornia crassipes) root biomass: Thermodynamics, mechanism and effect of chemical treatment
(2017-03)The use of lignocellulosic materials as biosorbents has both environmental and economic benefits. They are biodegradable, safe to use and most importantly renewable and less costly. The objectives of this present study ... -
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 ... -
Agromizid Leafminer infestation of different tomato (Lycopersicon lycopersicum) varieties and an assessment of the effectiveness of Azadirachta indica extracts as a management technique.
(2017-11-17)The relative susceptibilities of 14 tomato varieties (“Rodade”, “Nemonetta”, “Rio Grande”, “Season Red”, “Little Wonder”, “Money Maker”, “RVF”, “Cal-J”, “RVFN”, “Star 9065”, “Floradade”, “Rodade Plus”, “Heinz 1370” and ... -
Analysis of continuous longitudinal data with non-ignorable data.
(2012-08-28)Missing responses are very common in longitudinal data. Much research has been going on, on ways to go around this complication in analysing such a data set. The approaches range from simple remedies like: analysing complete ... -
Antimicrobial potential of herbal creams based on extracts from Combretum zeyheri
(2021-11)Microbial resistance has become a problem in the treatment of infectious diseases and the use of plant phytochemicals has been a valuable potential source of lead compounds that can be used for sustaining human health. ... -
Application of a dynamic greenhouse climate model for irrigation scheduling in a greenhouse rose crop in Zimbabwe
(2012-08-29)An assessment on the potential of the Gembloux Greenhouse Climate Model (GDGCM) as a tool for irrigation scheduling was done on a rose (Rosa Hybrida) crop grown in an Azrom type greenhouse, located in Harare, Zimbabwe. The ... -
Application of a homogeneously sulphonated polystyrene membrane in the purification of waste water
(2016-11)The homogeneous sulphonation of waste polystyrene and its subsequent use in waste water purification was studied. The targeted waste was white food trays collected from roadsides, bins and waste dumps. They were shredded ... -
Application of optical methods to determine the concentration of sugar solutions
(2012-09-07)Two optical methods were used to determine the concentration of sugar (sucrose) solution. The first employed a hollow perspex prism, a prism spectrometer and a monochromatic light source. The angles of minimum deviation ... -
Application of two- level full factorial designs and response surface methodology in the optimization of the variables associated with the determination of platinum using inductively coupled plasma –atomic emission spectrometry (ICP – AES)
(2016-04)In the present work, two -level full factorial designs and response surface methodologies were applied in the optimization of variables associated with the determination of platinum using Inductively Coupled Plasma ... -
An assessment of a vlei ecosystem restoration process: Monavale Vlei, Harare
(2016-04)Vegetation composition and diversity, soil physical and chemical parameters and primary productivity are important components of a wetland ecosystem recovery process. A comparative analysis of key indicators of ecosystem ... -
Assessment of levels of naturally occuring radionuclides at iron mining and processing sites in the Midlands Province of Zimbabwe.
(2016-11)Mining and mineral operations have been associated with exposures of Naturally occurring radioactive materials. A study was carried out to assess the activity concentration of naturally occurring radionuclides in iron ... -
An Assessment of the Contribution of Small and Medium Scale Enterprises (SMEs) to the Manufacturing Sector in Small Urban Centres of Zimbabwe: A Case Study of SMEs in Bindura Town.
(2012-08-16)This study was aimed at assessing the contribution of small and medium scale enterprises (SMEs) to the manufacturing sector in Bindura Town. The survey was carried out in three industrial sites, Chipadze Industrial Area, ... -
An Assessment Of The Impact Of Industrial Effluent From A Kwekwe-Based Iron And Steel Company On Kwekwe River Water Quality
(2012-08-28)The water quality of Kwekwe River, upstream and downstream of the industrial effluent discharge point was examined with the view of determining the effect of the effluent on water quality. Five sampling sites, each 20m ... -
Assessment of the impacts of artisanal small scale gold mining on environmental governance within the Mazowe catchment
(2016-06)This study focused on assessing the impacts of artisanal small-scale gold activities on the environmental governance of the Mazowe catchment. A representative sample of 32 respondents was selected from three sites with the ... -
Asymptomatic Solution Of The Thin Shell Equations Containing A Turning Point
(2012-09-03)The subject matter of this report is the vibrating behavior of thin shells of revolution when the generating line has a point of inflection at s*. At this point s*, the curvature changes its sign. We develop from the ... -
Atmospheric aerosol particles and transport: a climatological perspective for Zimbabwe
(2012-09-12)Atmospheric aerosol particles were collected in the coarse (2-10 µm diameter) and fine (< 2 µm diameter) size fractions at Rukomechi research station, (16.1 °S, 29.4 °E, 500 m a.s.l.), northern Zimbabwe from September 1994 ...
