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Dicarboxylic acid production by Yarrowia lipolytica strains
(University of the Free State, 2003-05)
English:Dicarboxylic acids are value added products, which can be prepared by diterminal oxidation of n-alkanes by bacteria or yeasts with a block in β-oxidation. Yarrowia lipolytica is one of the alkane-utilizing yeasts ...
Bioremediation of a bleach plant effluent from the pulp and paper industry
(University of the Free State, 2003-11)
English: Bleach plant effluent was characterised by physico-chemical methods. The chemistry of
the bleach plant effluent was examined to devise effective treatment methods. Effluent
contained trace amounts of nitrogen ...
Oil politics in Ecuador and Nigeria: a perspective from environmental history on the struggles between ethnic minority groups, multinational oil companies and national governments
(University of the Free State, 2003-11)
English: Oil-related struggles by ethnic minority groups against their national governments and multinational oil companies active in their traditional territories in South America and Africa have made headlines across the ...
Die verband tussen interpersoonlike fortaliteit en weerstand teen posttraumatiese stressimptome by kinderhuiskinders
(University of the Free State, 2003-11)
English: A review of literature indicates that more research is currently needed on the way in which post-traumatic stress disorder manifests in children and how it is influenced by certain risk and resilience factors. The ...
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 ...
Pastorale terapie met die MIV/VIGS geaffekteerde familie: 'n narratiewe benadering
(University of the Free State, 2003-11)
English: HIV/AIDS has become an increasing concern, especially in South Africa. Recent statistics have revealed no significant decrease in the number of HIV/AIDS-infected individuals – this, in spite of numerous campaigns ...
Application of amylases for the improvement of water drainage from recycled pulp fibre
(University of the Free State, 2003-05)
English: The use of recycled fibre to produce paper is increasing due to improved processes and consumer pressure. However, recycled fibre has slow drainage rates because of fines and residual starch. Slow drainage reduces ...
Die ontwikkeling en evaluering van 'n kreatieweprobleemoplossingsprogram vir adolessente
(University of the Free State, 2003-11)
English: The aim of the research was the development and evaluation of a programme
which will enhance creative thinking under adolescents. Psychofortology was
used as a theoretical framework. In psychofortology the ...
Estimating water retention for major soils in the Hararghe region, Eastern Ethiopia
(University of the Free State, 2003-02)
English: Soil water retention IS a fundamental property controlling water storage and
movement in the solurn. To determine the water retention characteristic curve is time
consuming and expensive. Several attempts have ...
Demand relations of oilseed products in South Africa
(University of the Free State, 2003-07)
English: In this study demand relations for primary oilseeds in South Africa is estimated and interpreted with the use of econometric models. Two different models, namely the Linear Approximate Almost Ideal Demand System ...