Browsing Faculty of Science e-Theses Collection by Issue Date
Now showing items 41-60 of 233
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Towards a suitable framework for blended multimedia e-learning applications
(2012-08-29)Most universities in developing countries are using a teaching and learning approach known as blended e-learning, however, there was no a framework for blended multimedia-based e-learning applications. Further, there is ... -
The Abundance and Biting Behaviour of Anopheles merus (Dönitz) in Gokwe South District, Zimbabwe
(2012-08-29)Malaria is a major public health problem in most sub-Saharan countries. Anopheles merus (Dönitz), a saltwater breeding member of An. gambiae complex, is involved in low rate malaria transmission in this region. In this ... -
Influence of Brachystegia spiciformis and Parinari curatellifolia on herbaceous flora and soils in Mukuvisi Woodlands, Harare
(2012-08-29)A comparative study between B. spiciformis and P. curatellifolia’s isolated and clumps of trees’ influence on patterning and structure of herbaceous flora and soils with those of adjacent open grasslands was conducted in ... -
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 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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Switch: An Extensible Framework for the Generation of Bespoke and Dynamic Software Development Models
(2012-08-29)Attempts to come up with a single Software Process Model (SPM) that can be used in all development scenarios have failed. The same can be said for the approach that seeks to come up with an authoritative and exhaustive set ... -
The use of knowledge bases as repositories in learning environments.
(2012-08-29)This dissertation proposes a method of management of Learning Objects Repositories (LORs). It looks at both the storage and search of learning objects (LOs) in the LORs. The focus is on how LORs can be structured in order ... -
Integrated Improved Security System Techniques in Combating Crime Using the Biometrics at the National Airport of Zimbabwe
(2012-08-29)Biometrics have become very popular as a tool in combating crime in the world. This has also been necessitated by the September 11 2001 event. Despite all the research that has been carried out the improvement of the ... -
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. ... -
Using Genetic Engineering Algorithm to Prevent Subversion of an Intrusion Detection System
(2012-08-29)Intruders mercilessly attack commercial, academic, defence; healthy centers distributed (networked) systems frequently, and often successfully. The challenges of intruders have become very critical. The most perceived ... -
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 ... -
A Study of Heap Fermentation and Protein Enrichment of Cassava.
(2012-08-30)Cassava (Manihot esculenta Crantz) is an important source of carbohydrate for humans and animals, producing high energy of 610 kJ/100 g fresh root weight. However, it is very poor in protein (1 % fresh root weight) and ... -
Metal, Arsenic and Cyanide Pollution of the Environment in the Vicinity of a Mining Waste Disposal Dump at Athens Mine.
(2012-08-30)Mining activity and mine wastes at Athens mine; Mvuma, Zimbabwe, have been generated since the 15th century accelerated significantly during the 20th century. The mine wastes constitute a potential source of contamination ... -
The Limnology and Ecology of Two Small Man-Made Reservoirs in Zimbabwe.
(2012-08-30)This study investigated the limnology of two small dams (< 5ha) built in series on Munwahuku river. Very little is known about the ecology of such small water bodies and the hydrological regime of these dams is that they ...
