Browsing Faculty of Science by Title
Now showing items 1-20 of 312
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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 ... -
Accumulation of potentially harmful elements in edible parts of vegetables grown on two different geological substrates in Zimbabwe.
(Elsevier, 2019-09-12)This study investigated the bioaccumulation of potentially harmful elements (PHEs) in common, locally grown vegetables in Zimbabwean farmlands. The aim of the study was to compare PHE accumulation in vegetables grown on ... -
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 ... -
African potato ( Hypoxis Spp): Diversity and comparison of the phytochemical profiles and cytotoxicity evaluation of four Zimbabwean species
(Open Science Publishers, 2014-01-22)The Hypoxis corm has a catalogue of medicinal uses and also serves as a source of food. Most scientific research on Hypoxis has centred on Hypoxis hemerocallidea although many other species are exploited medicinally. ... -
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 citrus sinensis solid waste as a pseudo- catalyst for free cyanide conversion under alkaline conditions
(BioResources, 2013-05-08)In this study, Citrus sinensis (C. sinensis) solid waste was used to catalyze the conversion of free cyanide (F-CN) under alkaline conditions; conditions which represent most industrial wastewater containing F-CN. Acid ... -
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 ... -
Assessing the impact of drug resistance on the transmission dynamics of Typhoid fever.
(Hindawi, 2013-05-20)Typhoid fever continues to be a major public health problem in the developing world. Antibiotic therapy has been the main stay of treating typhoid fever for decades. The emergence of drug-resistant typhoid strain in the ... -
Assessing the role of climate change in Malaria transmission in Africa.
(HINDAWI, 2016-02-23)The sensitivity of vector borne diseases like malaria to climate continues to raise considerable concern over the implications of climate change on future disease dynamics. The problem of malaria vectors shifting from their ... -
Assessing the spectral separability of flue cured tobacco varieties established on different planting dates and under varying fertilizer management levels
(Hindawi, 2014-01-24)The NDVI was used to discriminate tobacco variety, assess fertilizer levels, and determine the impact of planting date on separating crops. A split plot design with four planting dates, September, October, November, and ... -
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 ...
