Browsing Faculty of Science e-Theses Collection by Title
Now showing items 21-40 of 257
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Avocado seed starch and carboxymethyl cellulose superabsorbent polymer: Synthesis and characterisation
(2017-03)Superabsorbent polymers (SAPs) of crosslinked avocado seed starch and carboxymethyl cellulose were synthesized and their performance as fluid absorption materials was assessed by comparing them with those made from analytical ... -
Bark stripping by chacma baboons (papio ursinus) in relation to daily patterns of activity, feeding behaviour and home range in a pine plantation in Eastern Zimbabwe
(2013-09-06)This study reports daily activity pattern, home range size, daily travel distances and feeding behaviour for a troop of chacma baboons (Papio hamadryas ursinus) inhabiting a pine plantation in Eastern Highlands, Zimbabwe. ... -
The Behaviour of Particulate Matter and Carbon Dioxide Concentrations in Harare
(2012-09-12)As African countries industrialize, the emission of various pollutants is likely to increase. Air pollution can have adverse impacts on human and animal health and ecosystems. There has been very limited air pollution ... -
Biocide development for hard surfaces using extracts and compounds from Callistemon citrinus
(Univeristy of Zimbabwe, 2019-06)The global is now focusing on the use of herbal products and among them are herbal disinfectants. Plants contain a variety of secondary metabolites which include phenolic compounds, tannins, terpenoids, alkaloids and ... -
A bioinformatics approach to define the Eps-D1 subtelomeric chromosomal deletion in bread wheat (Triticum aestivum).
(2020-08)Flowering time is one of the critical determinants of yields in flowering plants. The flowering time in bread wheat (Triticum aestivum) is directly determined by vernalization, photoperiod response and earliness per se ... -
Bionomics of malaria vectors in Mutare and Mutasa districts of Manicaland province, Zimbabwe
(2016-10)Bionomics of malaria vectors including species composition, resting and biting behaviour and insecticide resistance are important for insecticide-based malaria control and interventions. The lack of data on malaria vector ... -
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, ... -
Challenges for TFRC as a Real-Time Protocol Over Multihop Wireless Ad Hoc Networks
(2012-08-29)Multihop wireless networks are emerging as a natural extension of the global Internet for scenarios where wired connections are unfeasible, impossible, or undesired. In these networks,nodes cooperate among themselves by ... -
Characterisation of Cowpea aphid-borne mosaic virus (CABMV) and evaluation of pathogen derived resistance to the virus.
(2012-08-28)Cowpea is a major source of dietary protein in most African traditional diets, and the crop partially replenishes the soil nitrogen content as a result of its association with nitrogen-fixing Rhizobium spp, and is used as ... -
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 ... -
Characterisation of signalling cascade by HBV genotypes in Hepatocellular Carcinoma progression
(2018)Background Hepatitis B virus (HBV) genotypes have different clinical outcomes in the progression of hepatocellular carcinoma. The HBV encodes two regulatory proteins, the LHBs and the HBx. Methods We analysed the impact ... -
Characterisation of the Polysaccharide material isolated from the fruit of Cordia Abyssinica
(2014-06-27)Treatment of aqueous extracts of the fruit of C. abyssinica, containing 0.25% sodium chloride with three volumes of ethanol produced an acidic polysaccharide with a 2% yield, on a fresh weight basis. With a protein content ... -
CHARACTERISATION OF THE POLYSACCHARIDE MATERIAL ISOLATED FROM THE FRUIT OF CORDIA ABYSSINICA
(2012-07-11)Treatment of aqueous extracts of the fruit of C. abyssinica, containing 0.25% sodium chloride with three volumes of ethanol produced an acidic polysaccharide with a 2% yield, on a fresh weight basis. With a protein content ... -
Characterisation pollen allergens in Zimbabwe of grass.
(University of Zimbabwe, 2018)IgE mediated hypersensitivity affects more than 25% of the industrialized countries. The first wave was that of inhalant allergies and this has been recorded as a series of ISAAC studies. The second wave is emerging and ... -
Characterising Silicon Diode response for radiation measurements
(2014-07-17)X-ray radiation has been used in the treatment of cancer since its discovery in 1895. It was found that incorrect use of x-radiation can cause irreversible damage. It was necessary to introduce diode in-vivo dosimetry ... -
Characterization of Anopheles gambiae (Giles) Breeding Sites in Gokwe South, Zimbabwe
(2012-08-29)Anopheles gambiae Giles larval breeding habitats were characterized in Gokwe South district in Zimbabwe to determine the ecological parameters of Anopheles breeding sites and identify their associations with larval density. ... -
Characterization of the black and white waters of the Manjolo Springs.
(University of Zimbabwe, 2019-10)The Manjolo springs are found in Binga in the Matebeleland North Province of Zimbabwe. The springs are twin springs separated by a 15 meter distance. One spring has black coloured water while the other has white coloured ... -
Chemistry of Phorbol Ester Toxicity: A Computer Modelling Approach
(2020)Phorbol esters are phytochemicals found in the Euphorbiaceae family, as the prime factors of toxicity in those plants. However, their degrees of toxicity vary from one compound to another, despite having closely similar ... -
Climate variability and change and its potential impact on maize yield in Northeastern Zimbabwe
(2012-09-12)The main aim of this study was to investigate climate variability and change and its potential impact on maize yield in Northeastern Zimbabwe. Understanding the impact of climate change on crop production may help optimize ... -
A cloud computing architechure for e-learning plaform, supporting multimedia content
(2014-07-25)E-learning based platforms that support multimedia content to enhance interactive learning demands large disk space. Despite research ground covered under e-learning circles, less attention has been devoted to solicit ...
