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Diolefin complexes of transition metals as 'venus fly-trap' templates
(University of the Free State, 2011-06)
English: The aim of this study was to gain a further insight into the bonding modes of 1,5-cyclooctadiene
to various middle to late transition metal centres. The intension was to design a
theoretical model of the influences ...
The development of Lachenalia cultivars
(University of the Free State, 2013-09)
The floriculture and ornamental industry is constantly looking for new products. South Africa is blessed with an exceptional rich bio-diversity and many South African plants have found their way onto international markets. ...
The geochemistry of the dykes in the Carletonville Goldfield
(University of the Free State, 2009-11)
Numerous dykes traverse the Witwatersrand Supergroup rocks in the Carletonville Goldfield. The aim of this study was to investigate a classification system for the dykes. Samples were obtained from Tau Tona and Mponeng ...
Agricultural hazardous waste : understanding the hazardous waste cycle in the maize production chain and testing a methodology to collect waste information for the development of a waste register
(University of the Free State, 2014-01)
The management of agricultural chemicals and waste is imperative in order to ensure proper resource protection and good environmental management. Various studies done in South Africa have illustrated the impact of agricultural ...
Soil surface evaporation studies on the Glen/Bonheim ecotope
(University of the Free State, 2010-11)
The biggest challenge in semi-arid areas is finding ways of reducing the major unproductive water loss: evaporation from the soil surface. A large number of subsistence farmers east of Bloemfontein, in and around Thaba’Nchu ...
Thermal and mechanical properties of LPDE/SISAL fibre composites compatibilized with paraffin waxes
(University of the Free State (Qwaqwa Campus), 2010-03)
The effects of maleic anhydride grafted Fitscher-Tropsch paraffin wax (MA-g-wax) and oxidised Fischer-Tropsch paraffin wax (OxWax) content on the morphology, thermal, mechanical and thermomechanical properties of LDPE/sisal ...
Quantification of the impacts of a domestic waste site on a Karoo aquifer
(University of the Free State, 2008-05)
Waste generation is a widespread phenomenon around the world, of which the majority is disposed by landfilling. In landfills, waste constitutes an integral part of the hydrological system, and thus poses a threat to ...
Characterization and expression of protein(s) involved in gold nanoparticle formations by Thermus scotoductus SA-01
(University of the Free State, 2010-05)
English: Developments in the biosynthesis of nanoparticles have increased significantly during the last few years as a result of the growing interest in the unique properties displayed by nanoparticles. These particles are ...
Improving the operational stability of the alkane hydroxylating cytochrome P450: CYP153A6
(University of the Free State, 2015-02)
CYP153 hydroxylases have been found to be a very diverse group of cytochrome P450 enzymes because they have been isolated from a many different genera of alkane-degrading bacteria collected from various environments. This ...
The influence of environment on the expression of Russian wheat aphid; Diuraphis noxia (Kurdjumov) resistance
(University of the Free State, 2008-05)
English: The purpose of this study was to investigate the effect of variations in climatic factors such as vernalization periods, minimum- and maximum temperatures and rainfall on the expression of host plant resistance ...