Browsing Faculty of Science e-Theses Collection by Title
Now showing items 95-114 of 257
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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 ... -
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 ... -
Impact of climate change and biotic factors on avifauna diversity and spatial distribution in the mid-Zambezi Valley, Zimbabwe.
(University of Zimbabwe, 2021-06)Construction of Lake Kariba on the Zambezi River restructured the biodiversity of the Zambezi Valley. However, studies on how the avian community of Kariba has changed since construction of the lake are scant. This study ... -
The Impact Of Communal Land Use On Dambos In Lower Gweru, Zimbabwe
(2012-08-29)The study investigated how the exploitation of dambos changes their vegetation composition, soil properties and how that will in-turn affect the water quality. Species diversity and evenness ware higher in Madikane (H’ = ... -
Impact of cultivation on soil and species composition of the Monavale Vlei, Harare
(2012-08-29)The study assessed the impact of cultivation on soil properties, species richness (grass and herbaceous) and species composition on the Monavale vlei. The results revealed that cultivation had an impact on nitrogen levels, ... -
Impact of elephants (LOXONDONTA AFRICANA L.) on baobab trees (ADANSONIA DIGITATA L.) in Man Pools National Park Zambezi Valley Region
(2013)An assessment was made on elephant impact on a baobab population in Mana Pools National Park. Study sites were selected on the basis of their distance from the Zambezi River, a major source of perennial water in the park. ... -
Impact of Lantana Camara invasion on a cattle/wildlife ranch: A case of Imire Ranch, Wedza District, Zimbabwe
(2016-04)The impact of Lantana camara invasion in a mixed game/cattle ranch was assessed at Imire Ranch using remote sensing and ground truthing techniques. Vegetation communities of the ranch were classified and mapped as a way ...
