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  1. Die oplosbaarheid en mobiliteit van kalk in sand

    Die oplosbaarheid en mobiliteit van kalk in sand

    Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H. v.H. van der Watt --- Departement Grondkunde en Plantvoeding,
    Die oplosbaarheid, diffusie en loging van twee kalktipes is in 'n suiwer sandmedium bestudeer. Deur van sand gebruik te maak is die kompliserende effek van die uitruilfase van grond geëlimineer. Die uitwerking van byvoegings van KCl, NH4Cl, Na2EDTA, organiese materiaal...
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  2. Spatial distribution of soluble reactive silica (SRSi) in the Tanzanian waters of Lake Victoria and its implications for diatom productivity

    Spatial distribution of soluble reactive silica (SRSi) in the Tanzanian waters of Lake Victoria and its implications for diatom productivity

    Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GW Ngupula --- Tanzania Fisheries Research Institute, Tanzania CN Ezekiel --- Tanzania Fisheries Research Institute, Tanzania ASE Mbonde --- Tanzania Fisheries Research Institute, Tanzania B Kashindye --- Tanzania Fisheries Research Institute, Tanzania E Mboni --- Tanzania Fisheries Research Institute, Tanzania
    Soluble reactive silica (SRSi) concentrations and diatom abundance were determined during four surveys in the Tanzanian waters of Lake Victoria between 2005 and 2008. The SRSi concentrations increased towards offshore sites, while the opposite was true for diatom abundance. The...
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  3. Interactive effects of pH and temperature on native and alien mussels from the west coast of South Africa

    Interactive effects of pH and temperature on native and alien mussels from the west coast of South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science • Authors: MP Emanuel --- Marine Research Institute, Department of Biological Sciences, South Africa D Pillay --- Marine Research Institute, Department of Biological Sciences, South Africa M van der Merwe --- Centre for Higher Education Development, South Africa GM Branch --- Marine Research Institute, Department of Biological Sciences, South Africa
    Global warming and ocean acidification influence marine calcifying organisms, particularly those with external shells. Among these, mussels may compensate for environmental changes by phenotypic plasticity, but this may entail trade-offs between shell deposition, growth and reproduction. We assessed main and...
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  4. Demography of remarriage and fertility desire among women receiving antiretroviral therapy in South West Nigeria

    Demography of remarriage and fertility desire among women receiving antiretroviral therapy in South West Nigeria

    Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Joshua O Akinyemi --- , Nigeria Rotimi F Afolabi --- , Nigeria Olutosin A Awolude --- , Nigeria E Afolabi Bamgboye --- , Nigeria
    Background: In view of sociocultural norms surrounding marriage and childbearing in South West Nigeria, fertility desire may be stronger among remarried women living with HIV. This article describes the characteristics of remarriage and its relationship to fertility desire.
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  5. Notes on sublocales and dissolution

    Notes on sublocales and dissolution

    Item type: Journal Article • Journal: Quaestiones Mathematicae • Authors: Jorge Picado --- University of Coimbra, Portugal Aleš Pultr --- Charles University, Czech Republic
    The dissolution (introduced by Isbell in [3], discussed by Johnstone in [5] and later exploited by Plewe in [12, 13]) is here viewed as the relation of the geometry of L with that of the more dispersed T(L) = S(L)op...
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