Faculty of Science: Recent submissions
Now showing items 21-40 of 312
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Modelling the effects of behavioral change on the transmission dynamics of Herpes Simplex Virus Type 2 (HSV-2).
(2017-10-13)Herpes simplex virus type 2 (HSV-2) is the most prevalent sexually transmitted disease worldwide, despite the availability of highly effective anti-viral treatment. It is of great concern that as other sexually transmitted ... -
Evaluation of the antimycobacterial properties of plant extracts from Vernonia adoensis.
(University of Zimbabwe, 2019-10)Tuberculosis (TB), is a mycobacterial infection resulting from Mycobacterium uberculosis. Two million individuals die annually due to TB and currently, treating this infection is a massive challenge owing to the emergence ... -
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 ... -
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 ... -
Modelling gender differences in drug abuse epidemics.
(Springer, 2018-01-11)Drug abuse is an issue of considerable concern due to its association with numerous public health problems. Mathematical models developed to describe the spread of drug abuse have generally assumed that the dynamics of ... -
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 ... -
Transmission dynamics of schistosomiasis in Zimbabwe: A mathematical and GIS approach.
(Elsevier, 2015-11-15)Temperature and presence of water bodies are known to influence the transmission dynamics of schistosomiasis. In this work, effects of water bodies (taken in context of rainfall patterns)and temperature from 1950 to 2000 ... -
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 ... -
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 ... -
Modeling gonorrhea and HIV co-interaction.
(Elsevier, 2010-09-14)A mathematical model was designed to explore the co-interaction of gonorrhea and HIV in the presence of antiretroviral therapy and gonorrhea treatment. Qualitative and comprehensive mathematical techniques have been used ... -
Differential magnetometer method applied to measurement of geomagnetically induced currents in Southern African power networks
(AGU Publications, 2016-03-18)Geomagnetically induced currents (GICs) in conductors connected to the Earth are driven by an electric field produced by a time-varying magnetic field linked to magnetospheric-ionospheric current perturbations during ... -
Modeling geomagnetically induced currents in the South African power transmission network using the finite element method.
(AGU Publications, 2015-03-24)Geomagnetically induced currents (GIC) are a result of time variations of the geomagnetic field,which induce a geoelectric field at the Earth’s surface. Geomagnetic perturbations are enhanced during adverse space weather ... -
An Upper Bound on the Radius of a 3-Vertex-Connected C4-Free Graph
(HINDAWI, 2020-08-04)Let G=(V,E) be a finite, connected, undirected graph with vertex set V and edge set E. -e distance dG (u,v) between two vertices u, v of G is the length of a shortest u-v path in G.-e eccentricity ec(v)of a vertex v∈V is ... -
Upper Bounds on the Diameter of Bipartite and Triangle-Free Graphs with Prescribed Edge Connectivity
(HINDAWI, 2020-09-03)Graph theory is used to study the mathematical structures of pairwise relations among objects. Mathematically, a pair G=(V,E) is a crisp graph, where V is a nonempty set and E is a relation on V[1]. -e order of a graph G ... -
Spanning paths in graphs
(Elsevier, 2018-08-29)The Conjecture, Graffiti.pc 190, of the computer program Graffiti.pc, instructed by DeLavi˜na, state that every simple connected graph G with minimum degree δ and leaf number L(G) such that δ ≥ 1 2 (L(G) + 1), is traceable. ... -
Modeling the transmission dynamics of brucellosis
(University of Zimbabwe, 2019-10)Brucellosis, a neglected zoonotic disease remains a major public health problem world over. It affects domesticated animals, wildlife and humans. With large pastoral communities, and demand for meat and livestock production ... -
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 ... -
Effects of human disturbance on the distribution of native and exotic Species: A study based on evidence from three sites in Zimbabwe
(University of Zimbabwe, 2016-10)The understanding of factors driving plant invasions in African Savannas which is pivotal for their management is currently poor. Therefore, this study tested several hypotheses that link human disturbance to species ... -
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 ... -
Water holes typology as a function of human and ungulate Activities in Hwange National Park, Zimbabwe
(University of Zimbabwe, 2018)Small aquatic ecosystems in semi-arid environments are characterised by strong seasonal water level fluctuations. Artificial pumping of ground water to maintain water resources throughout the dry season may affect the ...
