Articles by Author: Atf Bernard

Search results for Atf Bernard

We found 45 results for you
  1. Towards the validation of SeaWiFS in southern African waters: the effects of gelbstoff

    Towards the validation of SeaWiFS in southern African waters: the effects of gelbstoff

    Item type: Journal Article • Journal: South African Journal of Marine Science
    The effective application of future ocean colour data for southern African waters requires an in-depth assessment of bio-optical algorithm performance, given the productive and highly variable nature of the oceanographic region. Phytoplankton degradation products, commonly known as gelbstoff, represent a...
  2. The end of ubuntu

    The end of ubuntu

    Item type: Journal Article • Journal: South African Journal of Philosophy
    Since the advent of democracy in South Africa, there has been a concerted effort at reviving the notion of ubuntu. Variously conceived, it is seen as the authentic African ethical concept, a way of life, an authentic mode of being...
  3. DISTRIBUTION OF NEST PREPARATION TASKS BETWEEN MATES OF THE REDBILLED HORNBILL <em>TOCKUS ERYTHRORHYNCHUS</em>

    DISTRIBUTION OF NEST PREPARATION TASKS BETWEEN MATES OF THE REDBILLED HORNBILL <em>TOCKUS ERYTHRORHYNCHUS</em>

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Diop, M.S. & Treca, B. 1996. Distribution of nest preparation tasks between mates of the Redbilled Hornbill Tockus erythrorhynchus. Ostrich 67: 55–59.
  4. The influence of peers and other significant persons on sexuality and condom-use among young adults in northern Tanzania

    The influence of peers and other significant persons on sexuality and condom-use among young adults in northern Tanzania

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Sexual behaviour change remains a primary goal of HIV prevention efforts globally. It is a complex issue influenced by numerous unpredictable variables such as individual desires, social and cultural relationships, and environmental and economic dynamics. This study in northern Tanzania...
  5. Is the absolute requirement for informed consent before HIV testing a barrier to public health? A case report and management challenges

    Is the absolute requirement for informed consent before HIV testing a barrier to public health? A case report and management challenges

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Clinicians in sub-Saharan Africa are faced with a major challenge of parental refusal to test their children for HIV. We present a case of a nine-month-old child with a clinical presentation suggestive of HIV infection whose mother persistently declined HIV...
  6. A new subspecies of the Red-billed Hornbill, Tockus erythrorhynchus, from West Africa

    A new subspecies of the Red-billed Hornbill, Tockus erythrorhynchus, from West Africa

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Trea, B. & Erord, C. 2000. A new subspecies of the Red-billed Hornbill, Tockus erythrorhynchus, from West Africa. Ostrich 71 (3&4):363-366. The Red-billed Hornbill, Tockus erythrorhynchus (Temminck), over most of its distribution range, has pale yellow or pink facial skin. However,...
  7. Letters

    Letters

    Item type: Journal Article • Journal: South African Family Practice
  8. Real-time monitoring of harmful algal blooms in the southern Benguela

    Real-time monitoring of harmful algal blooms in the southern Benguela

    Item type: Journal Article • Journal: African Journal of Marine Science
    The southern Benguela Current region off South Africa is subject to frequent harmful algal blooms (HABs), which can have serious impacts — both through the introduction of toxins into the ecosystem and the collapse of high-biomass blooms leading to anoxia...
  9. Editorial

    Editorial

    Item type: Journal Article • Journal: African Zoology