Faculty of Science e-Theses Collection: Recent submissions
Now showing items 221-240 of 257
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Impact of the invasive alien species, LANTANA CAMARA (L). on native vegetation in Northern Gonarezhou National Park, Zimbabwe
(2012-08-29)This study assessed the impact of Lantana camara invasion on native vegetation in Northern Gonarezhou National Park (GNP), Zimbabwe. Stratified random sampling was used with three categories; uninvaded, moderately invaded ... -
Distributed deadlocks in distributed databases
(2012-08-29)The developments of database management system (DBMS) technology has run in parallel with the developments in computer networks and distributed computing technologies. Consequently there is the birth of distributed ... -
Relational Database Framework for Geo Spatial Data Sets
(2012-08-29)Geographic Information Systems (GISs) have emerged as the most powerful and effective decision-making tools in terms of gathering, analysis, interpreting, distribution and using geographically referenced (Spatial) data for ... -
Study of ephemeral rock pools on Domboshawa Mountain, Zimbabwe.
(2012-08-29)Five ephemeral rock pools were sampled weekly from December 2006 to May 2007 on the Domboshawa Mountain. Physical variables, which included temperature, pH, dissolved oxygen, phosphorus, nitrogen, conductivity and pool ... -
Modelling a low cost, data acquisition and irrigation sequencing system for a greenhouse on an 8 Bit PIC Microcontroller
(2012-08-29)The debate on climate change is still going on and on, and there is still no convincing evidence that greenhouse gases are the real, real cause of the recent changes in climate patterns. Some records tend to suggest that ... -
Trophic Interrelationships Amongst Cichlid Fishes in a Tropical African Reservoir (Lake Chivero, Zimbabwe)
(2012-08-29)The diet of seven cichlid fish species of Lake Chivero was investigated from October 2004 to April 2005. Oreochromis niloticus and O. macrochir were microphages feeding on a wide range of algae of which Microcystis sp., ... -
Using Modelling as a Management Tool for Water Resources: Identifying Problems and Causes and Providing Solutions to Current Eutrophication Problems in Lake Chivero.
(2012-08-29)The PAMOLARE model can be used as an effective tool for managing water resources. Projections show that in the next 25 years Lake Chivero’s water quality will further deteriorate if there are no measures taken immediately ... -
Nutrient Limitation of Phytoplankton in Five Impoundments on the Manyame River, Zimbabwe
(2012-08-29)Nutrient limitation was investigated in the Manyame lakes during 2004-05, namely, Harava Dam, Seke Dam, Lake Chivero, Lake Manyame and Bhiri Dam. Selenestrum capricornutum was used as the test organism in one group of ... -
Population Dynamics of Marula, Sclerocarya birrea sub sp. caffra in Mwenezi, Zimbabwe
(2012-08-29)This study, conducted in Ward 3, Mwenezi, determined the abundance, distribution and size structure of Marula, Sclerocarya birrea subsp. caffra. The relationship between incidence of debarked stems and size structure was ... -
Influence of Physiographic, Edaphic and Anthropogenic Factors on the Structure, Composition and Species Diversity of Vegetation in the Mazowe Botanical Reserve, Christon Bank.
(2012-08-29)The influence of physiographic, edaphic and anthropogenic factors on vegetation structure, composition and diversity of Mazowe Botanic Reserve, Christon Bank, north of Harare, Zimbabwe was investigated. The sampled area ... -
Stream Fish Assemblages Along the Longitudinal Gradient of the Nyangui River.
(2012-08-29)This study investigated the influence of longitudinal and environmental gradients on fish biodiversity in a central African context. The Nyagui River was used as a study site. Fish and microhabitat data were collected at ... -
Type 2 Diabetes Mellitus in Black Zimbabweans - Metabolic Factors and Molecular Genetics.
(2012-08-29)Objectives: The main objectives of the study were (i) to determine the prevalence of the metabolic syndrome disorders, (ii) to determine the frequency, of ApoE gene polymorphism at codons 112 and 158, of the ACE gene 287-bp ... -
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’ = ... -
Population Structure and Patterns of Regeneration of Zambezi Teak (Baikiaea Plurijuga) Logged at Different Periods in Gwai Forest, Zimbabwe.
(2012-08-29)Prudent management of natural forests requires information on their ecological status that can be estimated by monitoring population structure and regeneration especially in the presence of exploitation such as logging. A ... -
Application of a dynamic greenhouse climate model for irrigation scheduling in a greenhouse rose crop in Zimbabwe
(2012-08-29)An assessment on the potential of the Gembloux Greenhouse Climate Model (GDGCM) as a tool for irrigation scheduling was done on a rose (Rosa Hybrida) crop grown in an Azrom type greenhouse, located in Harare, Zimbabwe. The ... -
Patterns of Elephant (Loxodonta Africana Blumenbachi) Browsing in Faidherbi Woodlands Of The Zambezi Heartland Floodplains In Mana Pools National Park (Zimbabwe) And Lower Zambezi National Park (Zambia)
(2012-08-28)Patterns of elephant browsing in Mana Pools and Lower Zambezi National Parks’ riverine vegetation were investigated in sixteen and five variables transects, respectively. In each transect, tree and shrub species were ... -
Modeling dependence across stock markets using copulas.
(2012-08-28)An important issue in multivariate statistical modeling is the choice of the appropriate dependence measure. Correlation has many pitfalls as it is associated with the elliptical distributions assumption of normality which ... -
An Assessment Of The Impact Of Industrial Effluent From A Kwekwe-Based Iron And Steel Company On Kwekwe River Water Quality
(2012-08-28)The water quality of Kwekwe River, upstream and downstream of the industrial effluent discharge point was examined with the view of determining the effect of the effluent on water quality. Five sampling sites, each 20m ... -
The Macroinvertebrate Communities Of Two Upland Streams In Eastern Zimbabwe With Reference To The Impact Of Forestry
(2012-08-28)Benthic macroinvertebrates and physico-chemical parameters of the water were examined from two fast flowing streams, the Nyahode River which drains a pine monoculture catchment and the Haruni River which drains an undisturbed ... -
Analysis of continuous longitudinal data with non-ignorable data.
(2012-08-28)Missing responses are very common in longitudinal data. Much research has been going on, on ways to go around this complication in analysing such a data set. The approaches range from simple remedies like: analysing complete ...
