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Showing results 162041 to 162050 of 162403

  1. Synthesis and evaluation of novel HIV-1 enzyme inhibitors
    Olomola, Temitope Oloruntoba, 2011
    This study has involved the design, synthesis and evaluation of novel HIV-1 enzyme inhibitors accessed by synthetic elaboration of Baylis-Hillman adducts. Several series of complex coumarin-AZT and cinnamate ester-AZT conjugates have been prepared, in high yields, by exploiting the click reaction be ...
  2. The ichthyofauna of the Wilderness Lakes System, Western Cape, with particular emphasis on alien fish species and their establishment success
    Olds, Alexis Amy, 2012
    Freshwater fish species have been introduced into freshwater systems around the world, primarily for aquaculture, ornamental fish trade and sport fishing. Their introduction into estuarine systems is uncommon however, instances do occur and their establishment success and impacts on these estuarin ...
  3. Synthesis and characterisation of novel platinum (II) complexes : potential chemotherapeutic drugs
    Datt, Michael Steven, 2001
    The present study involves the preparation of novel mixed-ligand platinum(II) complexes in the hope of expanding the range of platinum(II) complexes that exhibit anticancer activity and which are less toxic and have a broader spectrum of activity than cisplatin and its analogues. To this end, N-(3-R ...
  4. Nanocomposites of nickel phthalocyanines as electrocatalysts for the oxidation of chlorophenols : an experimental and theoretical approach
    Khene, Mielie Samson, 2012
    In this work the interaction between peripherally (b) substituted nickel tetrahydroxyphthalocyanines (b-NiPc(OH)4 and poly-b-Ni(O)Pc(OH)4) with 4-chlorophenol is theoretically rationalized by performing calculations at the B3LYP/6-31G(d) level. Density functional theory (DFT) and molecular orbital t ...
  5. Small mammal communities at high altitude within the Sneeuberg Mountain complex, Eastern Cape Province, South Africa
    Kok, Armand du Preez, 2012
    Due to their widespread and specious nature, small mammals are ideal for biogeographical studies. Small mammals also effectively connect various trophic levels by being both consumers and prey items for other animals. The Great Escarpment is the dominant mountain landscape in South Africa. Yet, very ...
  6. Transgressive Christian iconography in post-apartheid South African art
    Von Veh, Karen, 2011
    In this study I propose that transgressive interpretations of Christian iconography provide a valuable strategy for contemporary artists to engage with perceived social inequalities in postapartheid South Africa. Working in light of Michel Foucault’s idea of an “ontology of the present”, I investi ...
  7. An analysis of the impact of tax changes between 1996 and 2012 on the tax burden of individuals in South Africa
    Krug, Lee, 2012
    The objective of the research was to determine whether the changes made to the Income Tax Act, 58 of 1962 between 1996 and 2012, in respect of fringe benefits, allowances, deductions, tax tables and rebates, where these changes apply to individuals, have resulted in relieving the tax burden placed o ...
  8. The Iindaba Ziyafika project : a new community of practice?
    Nyathi, Sihle, 2011
    This study sought to investigate the practices of citizen journalists in the Iindaba Ziyafika project. The objectives of the research were to explore the evolving practices of citizen journalism in Grahamstown and to extrapolate how citizen journalists are securing a discursive space in relationship ...
  9. Developing marine pollution awareness among new recruits at SAS Saldanha Naval Gymnasium: a training needs analysis
    Kwak, Gerrit Werner, 2012
    This dissertation focuses on the marine pollution awareness training needs of newly recruited SAN employees. It uses Training Needs Analysis (TNA) as a tool to gain a better understanding of what knowledge, skills and attitude (KSA) recruits should have about the marine environment and if their leve ...
  10. The making of business news in Africa : a case study of Cameroon Tribune newspaper
    Tawe, Ngamale Emmanuel, 2012
    Since the emergence of business journalism as a genre within the broad spectrum of news reporting, most of the scholarly works into its development have focused on growth in the western (that is developed) world. This indicates that very limited research has been done in the field of business journa ...