Browsing All Electronic Theses and Dissertations by Title
Now showing items 1110-1129 of 4456
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E-assessment in the teaching and learning of information technology at a higher education institution
(University of the Free State, 2018-01)Recent developments in teaching and learning in higher education require of institutions to create learning environments which would enable their students to move away from the traditional, established norms of a surface ... -
Early warning system for the black maize beetle (Heteronychus arator Fabricius) in a major maize producing region of South Africa
(University of the Free State, 2015-05)English: Black maize beetle (Heteronychus arator Fabricius) (Coleoptera: Scarabaeidae) is economically the most important coleopteran pest that attacks the subterranean part of maize seedlings in South Africa. The sporadic ... -
Eating practices, nutritional knowledge and body weight in nursing science students at the University of Fort Hare
(University of the Free State, 2009-09)English: The prevalence of overweight and obesity in college and health science students is increasing. This study determined whether eating practices and nutrition knowledge are associated with body weight in nursing ... -
Echocardiographic determination of risk factors for left atrial thrombi in mitral stenosis: a multivariate analysis
(University of the Free State, 1995-12)Left atrial thrombus with systemic emboli is a serious complication and economic burden in patients with mitral stenosis. At present long-term anticoagulation with warfarin is indicated in patients with rheumatic mitral ... -
An ecological analysis of stink bug and lepidopteran borer complexes associated with pecan and citrus orchards in the Vaalharts region
(University of the Free State, 2017-02)English: This study investigates the insect-plant interactions on citrus fruit and pecan nuts in South Africa. The aims of this study were to determine whether lepidopteran borer pests shuttled between adjacent citrus and ... -
The ecological planning of Doornkloof Nature Reserve, Northern Cape Province
(University of the Free State, 2014-01)The successful and effective management of conservation areas can only be achieved with access to sound environmental data. The Doornkloof Nature Reserve (DNR) in the Northern Cape Province, was in need of such data which ... -
An ecological study of yeasts associated with fruits and vegetables
(University of the Free State, 2001-01)English: Currently, fruits and vegetables suffer significant losses from fungal diseases after harvest. The use of synthetic fungicides which pose a risk to human health and the environment, have resulted in an intensive ... -
The ecology and ecophysiology of Marion Island house mice, Mus Musculus L.
(University of the Free State, 1999)English: This thesis presents the results of a studv of the biotic and abiotic conditions experienced by house mice on Marion Island, their morphological and reproductional adaptations to island conditions, the seasonal ... -
Ecology, taxonomy and possible life cycles of blood protozoans infecting crag lizards (Pseudocordylus spp.) from the eastern Free State highlands
(University of the Free State, 2012-01)English: The study of blood parasites of reptiles is a relatively new and unexplored field in South Africa. Therefore, the general aims of this research were to explore the haemoparasite fauna of cordylid lizards, ... -
Econometric estimation of Armington elasticities for selected agricultural products in South Africa
(University of the Free State, 2007-11)English: The economic evaluation of, for example, trade liberalisation requires complex models that can take different forms and which are based on economic theory. Of particular importance in partial and general equilibrium ... -
Econometric estimation of the demand for meat in Namibia
(University of the Free State, 2017-02)This study estimated the Rotterdam and the LA/AIDS model with the reason to determine an appropriate model for Namibian meat products. The data used in the study are prices and quantity demanded for Namibian meat products, ... -
Econometric estimation of the demand for meat in South Africa
(University of the Free State, 2003-05)In this study the demand relations for meat in South Africa are estimated and interpreted. Two demand model specifications, namely the Rotterdam and Linearized Almost Ideal Demand System (LA/AIDS), were estimated and tested ... -
Economic analysis of intensive sheep production systems in central South Africa
(University of the Free State, 2013-01)English: Small stock production has a few challenges in predation, stock theft, variable rainfall patterns and rising production costs but livestock production is a very important industry in South Africa. There is a growing ... -
Economic analysis of land use: the case of East Hararghe administrative zone in Ethiopia
(University of the Free State, 2004-02)This study aimed at developing and applying a methodology for land use analysis through looking for a form of land use that provides sufficient and rising incomes to the agricultural population of East Hararghe Administrative ... -
An economic analysis of salinity management with evolutionary algorithms in Vaalharts
(University of the Free State, 2017-01)The main objective of this research was to develop a bio-economic salinity management model to evaluate the stochastic efficiency, water-use efficiencies and environmental impact of optimal irrigation-scheduling practices ... -
The economic cost of large stock predation in the North West Province of South Africa
(University of the Free State, 2014-07)Predation is a problem for livestock farmers in many parts of the world and increasing losses are ascribed to predation. The black-backed jackal (Canis mesomelas) and caracal (Caracal caracal) are two important medium size ... -
The economic cost of large stock predation in the North West province of South Africa
(University of the Free State, 2014-07)Predation is a problem for livestock farmers in many parts of the world and increasing losses are ascribed to predation. The black-backed jackal (Canis mesomelas) and caracal (Caracal caracal) are two important medium size ... -
The economic cost of large stock predation in the North West Province of South Africa
(University of the Free State, 2014-07)English: Predation is a problem for livestock farmers in many parts of the world and increasing losses are ascribed to predation. The black-backed jackal (Canis mesomelas) and caracal (Caracal caracal) are two important ... -
The economic effects of poor and fluctuating irrigation water salinity levels in the lower Vaal and Riet Rivers
(University of the Free State, 2002-05)English: In the Lower Vaal and Riet Rivers, changing irrigation water quality has raised concern about the long-term sustainability of irrigation due to reduced yields of certain crops and the withdrawal of some very ... -
The economic effects of poor and fluctuating irrigation water salinity levels in the lower Vaal and Riet Rivers
(University of the Free State, 2002-05)English: In the Lower Vaal and Riet Rivers, changing irrigation water quality has raised concern about the long-term sustainability of irrigation due to reduced yields of certain crops and the withdrawal of some very ...