University of Zimbabwe Institutional Repository: Recent submissions
Now showing items 1881-1900 of 3951
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Factors associated with Human Immunodeficiency Virus first line treatment failure in Zvishavane District, Midlands Province, 2014
(2016-04)Globally, first line HIV treatment failure remains a challenge particularly in resource constrained settings. Midlands Province 2013 data showed that Zvishavane district had the highest prevalence of first line treatment ... -
Numerical simulation of the wave (shock profile) propagation of the Kuramoto-Sivanshinky equation using an adaptive mesh method
(2016-04)In this dissertation we solve the Kuramoto-Sivanshinsky equation numerically using an adaptive mesh method. Discretization in time is done using Crank- Nicolson with septic Hermite collocation method applied in space on ... -
Possibilities of water pollution in Cheche and Mtilikwe rivers by stillage from Triangle
(2016-04)The main aim of this project was to perform an investigation on the possible impact of Triangle limited stillage on Cheche and Mtilikwe river water quality. This was done by measuring physico- chemical parameters and ... -
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 ... -
An investigation of the potential impact of climatic change on maize production in Central Angola
(2016-04)Maize production is sensitive to weather and hence directly affected by climate change that is difficult to be controlled by the farmer, compromising yield and food security, especially for producers located in Huambo and ... -
The use of PCR based community profiling techniques to determine change in community structure and qPCR quantification of potato pathogens in soil under different temperature-moisture conditions over time
(2016-04)Monitoring of pathogens levels in soil is an important tool for disease management and understanding pathogen ecology. Rapid pathogen detection methods that can quantify the pathogen are desired for routine pathogen ... -
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 ... -
Effect of excess Sodium (Na) on Barium (Ba), Cobalt (Co) and Cadmium (Cd) emission during ICP-OES: Simulation on the basis of the simplified rate model
(2016-04)The effects of excess Sodium (Na) on Cobalt (Co), Cadmium (Cd) and Barium (Ba) were studied using the inductively coupled plasma-optical emission spectrometry (ICP-OES). The emission signals of the analytes with the ... -
Diverse Antigen-specific Antibody and Atopic Responses In Schistosomiasis and Malaria Co-infected Individuals.
(2016-04)The study was part of a huge schistosomiasis survey investigating schistosomiasis in the human model and was conducted in the Mashonaland East Province of Zimbabwe (31o 30‘E; 17o 45‘S) at Magaya and Chitate schools where ... -
Nutritional composition, antioxidant activity and bioaccessibility of phenolic compounds in selected wild cereal and pseudo-cereal grains found in Zimbabwe
(2016-04)The nutritional composition of five wild and two domesticated cereal grains was determined using standard analytical methods. It was hypothesised that wild cereal and pseudo cereal grains found in Zimbabwe contained macro ... -
In vitro antibacterial activity of selected plant extracts from Zimbabwe
(2016-04)Bacterial infections, if not properly treated, have the potential to become life-threatening in humans. The discovery of antibiotics in the 1940s made it possible for bacterial infections to be easily managed, thus, ... -
Screening for the effects of selected Zimbabwean plant extracts on enzymes and processes involved in pain and inflammation.
(2016-04)Inflammation is a complex process that is mediated by signalling radicals and prostaglandins. Prostaglandins are produced by conversion of arachidonic acid by cyclooxygenase (COX) isoenzymes. Selective inhibition of ... -
The response of Zimbabwean sorghum and maize landraces to Striga Asiatica infestation
(2016-04)Sorghum and Maize are important cereals for food security in Zimbabwe. However maize and sorghum production in the smallholder farming sector is being threatened by witch weed, (Striga asiatica ), which has the potential ... -
Design of nickel cathode sampling in the manufacture of nickel by the Outokumpu process
(2016-04)Industrial cathodes have the potential of being extremely nonuniform in impurity content. Obtaining a representative sample is essential in evaluating specifications compliance in industrial cathodes which determine its ... -
Determination of platinum, palladium, rhodium and gold in ores and concentrates using iridium and ruthenium as co-collectors by fire assay
(2016-04)Determination of platinum group metals (PGMs) and gold also known as precious metals is always a very difficult task, this is due to their availability in trace amounts in sample types of complex composition. Little research ... -
Preliminary studies on the winter season abundance and fitness of tephritid fruit flies in the Harare area, Zimbabwe
(2016-04)Fruit flies (Diptera: Tephritidae) are among the major constraints in commercial fruit production in many developing African countries. Due to their economic importance, knowledge of the tephritid fruit fly spectrum ... -
Land use/ land cover changes and stakeholders: Investigating sustainable natural resources management options for an a1 farm a case study of Essexdale farm in Marondera district, Zimbabwe
(2016-04)The tracking of the land use/land cover changes that took place in Essexdale Farm (a communal resettlement area in Marondera District of Zimbabwe) from the period 1985 to 2012 was conducted using the two methods: the ... -
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 ... -
Characterisation of oil extracted from parinari curatellifolia (hacha) nuts
(2016-04)Several oils have been characterised by many researchers as a way of unravelling their usefulness. Chinweubwa Arinze Jude, 2013 extracted oil from ground Nicotiana tabacum seeds by soxhlet.The percentage oil content was ... -
Bounds on distance-based graph parameters
(2016-04)In this thesis, we deal with bounds on distance measures, namely, degree distance, radius, diameter and the leaf number, in terms of other graph parameters, such as order and the three classical connectivity measures, ...
