Browsing Faculty of Science e-Theses Collection by Title
Now showing items 210-229 of 257
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Screening for the effects of selected Zimbabwean plant extracts on enzymes and processes involved in pain and inflammation.
(2016-04)Inflammation is a complex process that is mediated by signalling radicals and prostaglandins. Prostaglandins are produced by conversion of arachidonic acid by cyclooxygenase (COX) isoenzymes. Selective inhibition of ... -
Single Period Inventory Models for Products whose Demand Follows Compound Distributions
(2012-08-31)Up to this point, the Single Period Inventory models developed have focused on a product whose demand distribution in a single period is some simple classical distribution like the normal distribution, log-normal distribution, ... -
The Socio-Economic Impact of HIV/AIDS on Communal Agriculture in Kandeya and Chundu Wards of Mt Darwin and Hurungwe Districts
(2012-08-16)The Human Immunodeficiency Virus /Acquired Immuno-deficiency Syndrome (HIV/AIDS) epidemic is one of the greatest challenges currently facing Zimbabwe. With a national adult prevalence rate of 24.6%, no crisis in the history ... -
Solid Waste Disposal in Victoria Falls Town: Spatial Dynamics, Environmental Impacts, Health Threats and Socio-economic Benefits.
(2012-08-16)The sanitary disposal of solid wastes constitutes one of the most pressing challenges facing urban authorities in Zimbabwe. In recent years, there has been considerable increase in illegal waste dumping, which indicates ... -
Some apsects of products of totally permutable groups.
(2012-09-03)In this work groups factorised as products of pairwise totally permutable subgroups are investigated in the framework of SC-groups, P ST -groups, PT -groups and T -groups. In particular an attempt is made to answer the ... -
Spatial and temporal heterogeneity of woody vegetation along park boundary and the possible causes: A case study of Umfurudzi Game Park and adjacent communal lands
(2014-07-10)Although national parks have been established across Africa to protect areas from deforestation and to conserve biodiversity, they are not immune to disturbances outside and inside their boundaries. A study on spatial ... -
Spatial distribution of elephants (LOXODONTA AFRICANA) in Hwange Mining Concession area
(2014-10-07)In this study we tested whether and how environmental factors such as distance from water points inside mine dumps, distance from water points outside mine dumps, distance away from settlements, distance away from ... -
Spatial modelling of water pipe bursts in Harare, Zimbabwe
(2014-10-07)Water is a scarce commodity whose availability and utilisation requires diligent planning, distribution and management to ensure its proper use and protection in the interest of humankind and other ecological balances. ... -
Spatial variation in vegetation and soils around artificial watering points in Hwange National Park
(2014-07-17)Piospheres are examples of the spatial impacts animals have on their environment. They tend to develop around artificial watering points, particularly in the dry season. The present study sought to assess impactof ... -
Speciation and persistence of Tetracycline Antibiotics in the Aquatic environment: Characterization in terms of a Linear Rate Modea
(2016-09)The present work aimed at studying the degradation of tetracycline antibiotics in the aquatic environment with a view of arriving at a linear rate model taking into account microbial, photolytic and hydrolytic degradation, ... -
Speciation and Persistence of Tetracycline Antibiotics in the Aquatic Environment: Characterization in terms of a Linear Rate Model
(2017-10-10)The present work aimed at studying the degradation of tetracycline antibiotics in the aquatic environment with a view of arriving at a linear rate model taking into account microbial, photolytic and hydrolytic degradation, ... -
Speciation and persistence of tetracycline antibiotics in the aquatic environment: Characterization in terms of a linear rate model
(2017-08)The present work aimed at studying the degradation of tetracycline antibiotics in the aquatic environment with a view of arriving at a linear rate model taking into account microbial, photolytic and hydrolytic degradation, ... -
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 ... -
Structural Geology of the Umkondo Group in Eastern Zimbabwe and Geochronology of Associated Mafic Rocks and Possible Correlatives in Zimbabwe.
(2012-08-16)Metasedimentary rocks of the Mesoproterozoic Umkondo group in eastern Zimbabwe record the presence of an epicontinental basin situated near the eastern margin of the Kalahari craton. The Umkondo group is subdivided into ... -
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 ...
