Browsing Faculty of Science e-Theses Collection by Title
Now showing items 89-108 of 257
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Finite element method with quasi-linearization for solving Bratu's problem
(2016-04)This work presented here is the solution of one-dimensional Bratu’s problem. The major aim of this research is to master the techniques used to solve the Bratu problem. The nonlinear Bratu’s problem is first linearised ... -
A flexible computer based irrigation control system
(2012-09-13)The project seeks to investigate the possibility of efficient water use in irrigation scheduling systems through the use of a designed flexible computer based irrigation control system. One of the specific objectives of ... -
A flexible plant based irrigation control for greenhouse crops
(2012-09-13)The project sought to minimize water use, improve water use efficiency and improve crop productivity for greenhouse crops. A flexible plant based automated irrigation system was designed and implemented for a tomato crop ... -
Fluids and gold mineralisation in the late Archaean Harare Greenstone Belt, Zimbabwe
(2015-08-25)The study of selected gold deposits (i.e. Venus, Gladstone, Ceylon, Mashona Kop, Graham Nigel, Chigimira and Viking) in the late Archaean Harare Greenstone Belt (IIGB) has revealed the presence of more than one fluid ... -
Food and foraging ecology of Limnothrissa Miodon in the Sanyati Basin, Lake Kariba
(2017-11-14)The aim of the research was to study the feeding behaviour of Limnothrissa miodon (kapenta) with reference to food items in the Sanyati Basin of Lake Kariba. Sampling was carried out from June to December 2015. Fish samples ... -
Frequency of the TP53 Codon 47 and Codon 72 polymorphisms in HIV infected women with histologically confirmed cervical and vulvar pre cancer and invasive cancer reporting at an HIV clinic in Harare, Zimbabwe
(2020-08)Cervical cancer is the most common cancer in Zimbabwean women as well as the leading cause of female cancer deaths. There has been an increase in the cervical cancer incidence of Zimbabwe from 56.2 % reported in 2012 to ... -
Gas chromatography-mass spectrometry analysis in vitro antibacterial efficacy and in silico molecular docking of compounds produced by endophytes isplated from indegenous medical plants.
(2020-08)Native medicinal plants have been traditionally used to treat various bacterial infections, fungal infections, cancers, viral infections and cardiovascular diseases. Endophytic bacteria residing inside the tissues of ... -
Gas lensing in a heated rotating pipe
(2012-09-07)When a heated pipe is axially rotated, the dynamics of the gas inside exhibit properties reminiscent of a positive lens. These are the result of a parabolic distribution of refractive index in the pipe, which is caused by ... -
Genetic analysis of 27 Y-Chromosome short tandem repeat (Y-STR) Loci of the Zimbabwean shona ethnic group
(2021-01)Population genetic data about modern DNA profiles, specifically for Zimbabweans, was almost non-existent aside from that of 55 individuals’ DNA profiles contributed on the YHRD international database, under accession number ... -
Genetic diversity of antimicrobial resistant intestinal E.coli strains isolated from chicken produced in Chanakira village.
(2021-10)Intestinal Pathogenetic E.coli is a class of E.coli strains capable of causing an infection and subsequently disease in the intestines. This class consists of six major strains with some having their own variants, namely: ... -
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 ... -
GIS and remote sensing applications for modelling the distribution of elephants and their interaction with vegetation
(University of Zimbabwe, 2019-10)Knowledge of elephant (Loxodonta africana) interaction with vegetation is critical for conservation of the mega-herbivore and of other wildlife species found in the ecosystem. Although the impact of elephants on vegetation ... -
GROUND MAGNETICS AND INDUCED POLARISATION METHODS AT LORNA DOONE FARM, GLEN FOREST AREA, HARARE
(2012-09-12)A geophysical survey was carried out at Lorna Doone farm, a dairy farm located 40 km from the Harare city centre. The study area lies within the Harare – Bindura – Shamva greenstone belt. Rocks in the area include ... -
Habitat fragmentation, tree species diversity and land cover dynamics in a resettlement area in Chimanimani district of Zimbabwe : a spatio-temporal approach
(2014-10-07)Agricultural expansion into forests leads to habitat fragmentation and the creation of habitat patches that can only support a limited amount of biodiversity. Adopting theoretical frameworks which seek to understand ... -
Heavy metal air pollution study, using a Moss Bio Monitoring technique
(2017-11-16)Air pollution is increasingly becoming a problem in developed and developing countries. As a corrective measure, constant air monitoring has been done using conventional techniques which are costly and time consuming hence ... -
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 ... -
HPLC determination of atrazine in water and sediment samples after liquid-liquid and solid phase extraction: A comparative study.
(2016)Atrazine is a selective herbicide for control of broadleaf and grassy weeds in corn, sorghum and sugarcane. The extraction efficiency was studied using distilled water, river water and sediment samples. A two-step procedure ... -
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 ... -
Identification and differentiation of Fusarium species using selected molecular methods
(2012-08-28)The taxonomy of Fusarium at the species level is based on morphological characteristics which include hyphae, conidia and microconidia. These features require expertise in taxonomy for an accurate and reliable diagnosis ... -
Immuno-epidemiology of helicobacter pylori-associated autoimmune conditions in Zimbabwean patients.
(University of Zimbabwe, 2019-10)The bacterium Helicobacter pylori (H. pylori) colonizes the human gastric mucosa and is a recognized causative agent for peptic ulcer disease. The prevalence of H. pylori infection in Zimbabwe is unknown. Treatment requires ...
