Articles by Keyword: Africana Universities

Search results for Africana Universities

We found 12 results for you
  1. Appropriate technology and ethical obligations of the university: W.E.B. Du Bois on the Africana university mission<xref ref-type="fn" rid="FN0000"/>

    Appropriate technology and ethical obligations of the university: W.E.B. Du Bois on the Africana university mission<xref ref-type="fn" rid="FN0000"/>

    Working on the Encyclopedia Africana under the sponsorship of Kwame Nkrumah in Ghana, W.E.B. Du Bois reversed his conviction that only the ‘talented tenth’ could profit from a university education. He proposed that virtually all humans have a right to...
  2. Resistance of sorghum hybrids to ergot caused by <em>Claviceps africana</em>

    Resistance of sorghum hybrids to ergot caused by <em>Claviceps africana</em>

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Thirty-one sorghum hybrids were evaluated for ergot ‘escape’ resistance at Bethlehem and Potcherstroom during the 1996/97 and 1997/98 seasons. Trials were designed so that flowering and artificial inoculation occurred over a range of flowering dates and thus, ergot potentials Non-linear...
  3. Efficacy of fungicides in the control of ergot (<em>Claviceps africana</em>) in sorghum <em>(Sorghum bicolor</em>) hybrid seed production

    Efficacy of fungicides in the control of ergot (<em>Claviceps africana</em>) in sorghum <em>(Sorghum bicolor</em>) hybrid seed production

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Ergot is a disease of unfertilized sorghum ovaries. It is particularly prevalent in seed production where losses may average 10–20% per annum. Protection of the ovary during the critical period of flower opening to fertilization could reduce losses and increase,...
  4. Spatial Variability in the Mudprawn <em>Upogebia Africana</em> on the South-east Coast of South Africa

    Spatial Variability in the Mudprawn <em>Upogebia Africana</em> on the South-east Coast of South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    A nested sampling design was used to examine the variability in density, biomass, sex ratio and size of the estuarine mudprawn Upogebia africana in six estuaries on the south-east coast of South Africa. The objectives were to test the general...
  5. Assessment of the abundance and distribution of burrowing sandprawns and mudprawns (<em>Callichirus</em> and <em>Upogebia</em> species) in Langebaan Lagoon, South Africa

    Assessment of the abundance and distribution of burrowing sandprawns and mudprawns (<em>Callichirus</em> and <em>Upogebia</em> species) in Langebaan Lagoon, South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    A survey of sandprawns and mudprawns was undertaken in intertidal and subtidal zones in Langebaan Lagoon, West Coast National Park, South Africa, to determine their stock status and to gain an understanding of the spatio-temporal patterns in abundance and distribution...
  6. Stem biomass and volume models of selected tropical tree species in West Africa

    Stem biomass and volume models of selected tropical tree species in West Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Estimating tree volume and biomass constitutes an essential part of the forest resources assessment and the evaluation of the climate change mitigation potential of forests through biomass accumulation and carbon sequestration. This research article provides stem volume and biomass equations...
  7. Toward sustainable harvesting of Africa's largest medicinal plant export (<em>Prunus africana</em>): a case study in Tanzania

    Toward sustainable harvesting of Africa's largest medicinal plant export (<em>Prunus africana</em>): a case study in Tanzania

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Global demand for treating prostate disorders with Prunus africana bark extract has made P. africana Africa's largest medicinal plant export. Unsustainable harvesting practices can lead to local extirpations of this multipurpose tree. Survey research targeting P. africana harvesters in a...
  8. Obstacles to HIV prevention, treatment and care in selected public universities in South Africa

    Obstacles to HIV prevention, treatment and care in selected public universities in South Africa

    Item type: Journal Article • Journal: African Journal of AIDS Research
    South Africa, like the rest of Southern Africa, is ravaged by AIDS. Higher education in South Africa has a significant role to play in the fight against the spread of HIV and AIDS. This article reports the factors contributing to...
  9. Social sciences and research ethics in developing countries: The perspective from Nigeria

    Social sciences and research ethics in developing countries: The perspective from Nigeria

    This study seeks to show how social science-related disciplines in Nigerian universities understand and incorporate ethical principles in research settings within the framework of general institutional practices. We used the University of Uyo, Nigeria, to specifically and empirically explore these...
  10. Macrofaunal community structure in the littoral zone of a freshwater-deprived, permanently open Eastern Cape estuary

    Macrofaunal community structure in the littoral zone of a freshwater-deprived, permanently open Eastern Cape estuary

    Item type: Journal Article • Journal: African Zoology
    Spatial patterns in the macrofauna community structure within four distinct zones of the permanently open, freshwater-deprived Kariega Estuary on the southeastern coastline of southern Africa were investigated in March–May 2010. The zones within the littoral zone comprised a band of...