Now showing items 1-10 of 79
Chemical kinetics, electrochemistry and structural aspects of ferrocene-containing b-diketonato complexes of rhodium(I) and iridium(I)
(University of the Free State, 1999)
English: Synthetic routes to prepare new Rh(I)-β-diketonate complexes [Rh(FcCOCHCOR)(CO)2] and [Rh(FcCOCHCOR)(CO)(PPh3)] with Fc = ferrocenyl and R = Fc, C6H5, CH3 and CF3 have been developed and optimized. Optimized ...
The expression of leaf rust resistance in wheat lines containing Lr12 and Lr13
(University of the Free State, 1995-11-30)
Monogenic resistance in wheat (Triticum aestivum L.) to leaf rust, caused by Puccinia recondita Rob. ex. Desm. f. sp. tritici, has generally not been durable. One strategy of attaining durable resistance to rust diseases ...
The genus Cheiracanthium (Araneae: Clubionidae) in southern Africa
(University of the Free State, 1995-11)
English: The southern African representatives of Cheiracanthium C.L. Koch, 1839 are revised after examining 617 adult specimens. Eight species of Cheiracanthium are recognized from this region, four are new (C. dippenaarae, ...
The development of a virtual reality simulator for certain gastrointestinal endoscopic procedures
(University of the Free State, 1999-05)
English: A Virtual Reality Gastrointestinal Trainer/Simulator has been developed to enable the simulation of gastrointestinal procedures on a personal computer (PC). Virtual Reality (VR) techniques are used in the ...
A system for drought monitoring and severity assessment
(University of the Free State, 1995-02)
English: The objectives of this study were: (i) to develop a near real-time crop-specific drought monitoring system that delimits drought stricken areas and assesses the severity of droughts in these areas, (ii) to ...
Synthesis and characterisation of a selection of phthalocyanines covalently bonded to water-soluble polymers and a ferrocenyl fragment
(University of the Free State, 1998-06)
English: This thesis is concerned with the synthesis of phthalocyanine derivatives and their anchoring onto water-soluble polyaspartamides to produce compounds that may have biomedical applications, especially in the ...
Grain yield and breadmaking quality of wheat lines with leaf rust resistance genes Lr29, Lr34, Lr35, and Lr37
(University of the Free State, 1999-06)
English: 1. The aim of this study was to determine if the leaf rust resistance genes Lr2g, Lr34, Lr35 and Lr37 have an effect on the quality and yield characteristics of a cultivar it is incorporated into. 2. Near-isogenic ...
Die verdraagsaamheid van wildehawer vir onkruiddoders
(University of the Free State, 1993-03)
No abstract available
Identification of genetic distances and heterotic groups of inbred maize (Zea mays) lines using DNA fingerprinting
(University of the Free State, 1999-12)
English: AFLP (Amplified Fragment Length Polymorphism) analysis has found widespread use in DNA fingerprinting because of its relative simplicity, low cost and high marker output. AFLP analysis also does not have the ...
Branchial monogenean parasites (Monogenea: Dactylogyridae) of characin fishes from the Okavango river and Delta, Botswana
(University of the Free State, 1998-12)
English: The fishes of the Okavango System, Botswana, are of considerable economical and ecological importance. Recently, scientists and local fishermen have reported a dramatic decline in the fish stocks of the Okavango ...