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Showing results 162071 to 162080 of 169770

  1. Making the local count: social change communication and participation in HIV prevention
    Simon-Meyer, Janine, 2013-01-25T09:42:26Z
    Introduction: Migrant and mobile seasonal farm workers face multiple challenges in preventing sexual transmission of HIV. They also fall beyond direct reach of district health promotion services and national HIV prevention communication interventions. HIV prevalence rates in rural farming communitie ...
  2. Transmission patterns and seroepidemiology of Kaposi`s Sarcoma associated Herpes Virus-KSHV (Human Herpes Virus 8-HHV -8) in South Africa
    Kgokong, Babatyi Innocentia Malope, 2013-01-25T09:48:37Z
    Factors associated with the transmission of Kaposi’s sarcoma-associated herpesvirus (KSHV) are inconclusive. In countries where KS and KSHV are confined to men who have sex with other men (MSM), KSHV is associated with sexual risk factors. In countries where KSHV is endemic, it affects adults and ...
  3. Computational identification of synonymous SNPs in the human genome and their potential role in disease
    Wood, Lee-Ann, 2013-01-25T09:52:49Z
    The potential phenotypic effects of synonymous SNPs (sSNPs) have long been overlooked. Although several sSNPs are no longer thought to be silent, no one has identified which sSNPs may contribute to phenotypic variation on a genome-wide scale. sSNPs that cause a change in codon-usage frequency or ...
  4. Hospitalisation rates, length and cost of hospitalisation of diabetic and non-diabetic patients in a tertiary hospital in Johannesburg
    Ncube-Zulu, Tryphine, 2013-01-25T10:03:52Z
    Background: Diabetes consumes between 5% and 10% of most countries’ health budgets with the majority of the costs being for hospitalisation, making analysis of hospital costs an integral part in the estimation of the costs of managing diabetes and its complications. Analysing direct costs makes a gr ...
  5. Factors associated with elevated blood lead levels in first grade school children in Cape Town, South Africa
    Aliraki, Lisbon, 2013-01-25T10:07:51Z
    Introduction: Lead metal toxicity in children is a major public concern internationally. In South Africa, January 2006 was the date set for the complete phase-out of leaded petrol, a well known major source of environmental lead contamination. Analysis was conducted to describe the distribution o ...
  6. A comparison of the accuracy of polyether, polyvinyl siloxane, and plaster impression for long span implant supported prostheses
    Hoods-Moonsammy, Vyonne Jacqueline, 2013-01-25T10:13:47Z
    Purpose It is known that distortions can occur during impression making and the pouring of casts, and that this distortion may produce inaccuracies of subsequent castings, especially long span castings for implant superstructures. The purpose of this study was to compare the ability of different ...
  7. The growth and localized breakdown of the passive film on iron in 0.05 M NaOH studied in situ using raman microscopy and potentiodynamic polarization
    Nieuwoudt, Michel Karin, 2013-01-29T05:02:47Z
    A unique Raman spectroscopic investigation combining a number of different techniques has been conducted in situ on the composition of the passive film on iron, both during its growth in 0.05 M NaOH by potentiodynamic polarization and during localized breakdown by pitting after addition of 0.05 M Na ...
  8. The role of a conserved interdomain salt bridge on the structure, function and stability of the Y-GSTs
    Robertson, Gary Jay, 2013-01-29T05:08:22Z
    Domain interfaces are important to the folding, stability, structure and function of multidomain proteins. In the case of human glutathione S-transferase A1-1 (hGSTA1-1) site-directed mutagenesis studies have previously implicated the interdomain Arg13 residue of the protein in maintaining the prope ...
  9. Detection of hyperthermia during capture of wild antelope
    Broekman, Marna Suzanne, 2013-01-29T05:12:40Z
    Capture of wildlife often leads to high animal mortality. In many species, capture is associated with development of a high body temperature. This stress-induced hyperthermia appears to form an integral part of capture-related mortalities, since it occurs before, during and after exposure to capture ...
  10. The contribution of F99 to the structure and function of South African HIV-1 subtype C protease
    Seele, Palesa Pamela, 2013-01-29T05:23:48Z
    The HIV/AIDS still remains a global health challenge with 42 million people infected with the virus. An alarming 70% of these people reside in sub-Saharan Africa with HIV-1 subtype C being the most prevalent subtype in this region and globally. HIV-1 protease (PR) is an obligate homodimer which p ...