Browsing Faculty of Science e-Theses Collection by Title
Now showing items 224-243 of 257
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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 ... -
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 ... -
A study of the biological and economic factors affecting the kapenta (Limnothrissa miodon) population and yield in Lake Kariba
(2014-07-17)This study investigated some of the variables that influence the fishery of Limnothrissa miodon (kapenta) in Lake Kariba, namely, biological (limnological factors, zooplankton composition and densities) and economic ... -
A Study of the Helminth Parasite of Fish and Fish-eating Birds in the Manyame Catchment, Zimbabwe.
(2012-07-11)This study was done to determine the major helminth parasites of the sharptooth catfish, Clarias gariepinus, the straightfin barb, Barbus paludinosus and four species of piscivorous birds: Phalacrocorax africanus (Reed ... -
A study of the limnology and ecology of Mazvikadei Reservoir
(2017-11-17)An assessment of the limnology of Mazvikadei reservoir was carried out from May to October 2015. The main objective of the study was to determine whether limnology of the reservoir has changed since the filling phase. The ... -
A STUDY OF THE REMOVAL OF Pb, Cd, AND Cr HEAVY METALS FROM AQUEOUS SOLUTIONS BY MORINGA OLIEFERA SEEDS IN COMPARISON TO CARBONIZED MORINGA OLIEFERA SEED.
(2013-09-25)Moringa oleifera is an abundant and economically important plant that is used for many purposes, and is a potential resource in many ways; charcoal production is one of them. The uptake for lead, chromium, and cadmium from ... -
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 ... -
Synthesis and characterization of layered double hydroxides and their application in asprin intercalation
(2016-11)Aspirin delivery by layered double hydroxides (LDHs) was extensively studied due to the capacity of these solids to intercalate it and to control its release rate. In this work, LDH and LDH-aspirin hybrids were synthesized ... -
Synthesis and modification of Zeolites for the removal of heavy metals from water
(2017-11-14)Zеolitеs wеrе synthеsisеd using thе hydrothеrmal synthеsis mеthod. Thе synthеsisеd zеolitеs wеrе initially activatеd with sodium chloridе and latеr functionalisеd using barium (barium sulphatе) and coppеr (coppеr sulphatе). ... -
Synthesis and Optical Characterisation of C-sio2 and C-nio Sol-gel Composite Films For Use as Selective Solar Absorbers.
(2012-09-12)Carbon-silica (C-SiO2) and carbon-nickel oxide (C-NiO) composite films were fabricated on aluminium and steel substrates by the sol-gel technique. The substrates were cleaned before spin coating took place. The precursor ... -
Synthesis of a novel visible light responsive γ-Fe2O3/SiO2 /C-TiO2 magnetic nanocomposite for water treatment
(2018)Recovery of TiO2 from a solution after photocatalysis is a matter of concern since it allows for reusability and better purification. Maghemite nanoparticles coated with silica and carbon doped titanium dioxide were ... -
The Taxonomy, ecology and trematode infections of gastropod snails on the northern shoreline of Lake Kariba, Zimbabwe.
(University of Zimbabwe, 2021-08)Freshwater gastropods make up about 75% of all freshwater molluscs in the African continent. Their classification and identification have been largely based on morphological characteristics, with the main focus on shell ... -
Thermal regulatory problems associated with playing soccer
(2012-09-13)Playing soccer in a hot environment without drinking fluids is likely to cause dehydration and consequently heat stress related conditions and poor performance. The objective of this study was to determine the amount of ... -
To find cost effective routes that are able to meet the fuel/time constraints using the Intelligent Transportation Systems in VANETS
(2012-08-29)The use of real-time information in Intelligent Transportation Systems (ITS) in particular Vehicular Ad hoc Networks (VANETs) has the potential to improve traffic conditions and reduce travel delays by facilitating better ... -
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 ... -
Towards minimising human factor in end-user information security
(2013-06-04)Today there are many hardware and software solutions to enhance information security, but there is limited research regarding the human factor in information security. Research has revealed that the application of information ... -
Travelling wave solutions of a mathematical model for tumor encapsulation.
(2012-09-03)The formation of a capsule of dense, fibrous extracellular matrix around a solid tumour is a key prognostic indicator in a wide variety of cancers. However, the cellular mechanisms underlying capsule formation remain ... -
Treatment of HIV-1 with Reverse Transcriptase Inhibitors ( RTI's) and Protease Inhibitors ( PI's )
(2012-08-31)Treatment with antiretroviral drugs has been reported to delay progression of HIV infection to AIDS, and may even lower the infectiousness of the infectives. This study investigates the effects of treatment of HIV-1 with ... -
Trends in spatial distribution of alien woody species and primary production on invaded sites in Nyanga National Park, Zimbabwe
(2016-04)The study sought to establish trends in spatial distribution of the invasive plants, Acacia mearnsii (black wattle) and Pinus spp (pines) and assess their impact on primary production in Nyanga National Park, Zimbabwe, ... -
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., ...
