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Effect of varying degrees of water saturation on redox conditions in a yellow brown apedal B soil horizon
(University of the Free State, 2007)
Various studies have been conducted into redox potential (Eh), redox indicators and the measured soil water contents in soil (Franzmeier et al., 1983; Schwertmann & Fanning, 1976; Veneman et al., 1976). Although a measure ...
3D visualization of data from groundwater flow and transport models
(University of the Free State, 2000-11)
English: Groundwater flow and transport models produce large amounts of data, which the human
brain cannot possibly grasp. Taking advantage of the natural abilities of the human vision
system, 3D visualization is often ...
Synthesis and functionalisation of polyepichlorohydrin
(University of the Free State, 2004-12)
During this study, benzo-15-crown-5 was synthesised as sodium cation scavenging ligand. This crown ether moiety was then functionalised to 4’-formylbenzo-15-crown-5 and 4’-(hydroxymethyl)benzo-15-crown-5. The first synthesis ...
Taxonomy of the Genus Lycium L. (Solanaceae) in Africa
(University of the Free State, 2000-06)
No abstract available.
Photochemistry of pentoxifylline: a xanthine derivative
(Unversity of the Free State, 2006-11)
English: Pentoxifylline [1-(5'-oxohexyl)-3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione], sold under the trade name Trental®, is a methylxanthine derivative used in treatment of peripheral and cerebrovascular diseases and ...
A comparative study to determine the optimum e-assessment paradigm for testing users' word processing skills
(University of the Free State, 2008)
English: In recent times, people have become more and more reliant on computers on a daily basis. As a result, the need has arisen to optimise the task-related experience in terms of time efficiency, which demands effective ...
Forensic entomology: the influence of the burning of a body on insect succession and calculation of the postmortem interval
(University of the Free State, 2009)
Forensic entomology is the application of the study of insects and other arthropods which are associated with legal issues and certain suspected criminal events. Successional studies have been successfully applied in ...
Reconstruction of contact metamorphism of the Uitkomst Complex, near Badplaas, Mpumalanga Province, South Africa, based on mineralogical and petrological investigations of the contact aureole
(University of the Free State, 2009)
This study presents petrological, mineralogical and geochemical data from the country rocks surrounding the basic to ultrabasic Uitkomst Complex in the Mpumalanga Province, South Africa. The investigations resulted in a ...
Impact of ozone on the photosynthetic and metabolic properties of Zea mays
(University of the Free State, 2003-11)
English: The impact of elevated ozone concentrations on plants has important global implications for the environment and especially for crop production. The fact that ozone can cause serious damage to crop production served ...
Speciation and interconversion mechanism of mixed halo O,O' - and N,O-bidentate ligand complexes of hafnium
(University of the Free State, 2009-04)
English: Hafnium and zirconium show extremely similar chemical properties and occur together in nature. Zirconium ore (commonly referred to as zircon) always contains 1 – 3% hafnium, and the separation of hafnium and ...