Articles by Author: R Stern

Search results for R Stern

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  1. Correlation between micro-aggregate stability and soil surface susceptibility to runoff and erosion

    Correlation between micro-aggregate stability and soil surface susceptibility to runoff and erosion

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    A simple procedure to determine micro-aggregate stability was developed. The micro-aggregates in aqueous suspension were subjected to controlled energy input imposed by sonic vibration to simulate the breaking down of aggregates by raindrop impact during a rain storm event. The...
  2. Polymer effect on infiltration and erosion of sodic soils

    Polymer effect on infiltration and erosion of sodic soils

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Runoff from irrigated sodic soils is a common phenomenon in arid and semi-arid climates. The effect of a low-charge polysaccharide (LCCP) on infiltration rate (IR) and runoff on two red apedal soils was studied using an irrigation simulator. One was...
  3. Experiences and conceptualizations of sexual debut from the narratives of South African men and women in the context of HIV/AIDS

    Experiences and conceptualizations of sexual debut from the narratives of South African men and women in the context of HIV/AIDS

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Given the pivotal role of first sex in the development of sexual and reproductive health (SRH) practices, there is a need for more contextualised and nuanced understandings of young people's early sexual debut experiences. This study used sexual history narratives...
  4. Modelling systematic risk and return using accounting-based information

    Modelling systematic risk and return using accounting-based information

    Item type: Journal Article • Journal: Investment Analysts Journal
    The study explored the linkages between the financial parameters of a firm derived from reported accounting data, and systematic risk as described by estimated market beta coefficients. The relationships between financial variables and risk proposed by previous theoretical and empirical...
  5. Conceptions of agency and constraint for HIV-positive patients and healthcare workers to support long-term engagement with antiretroviral therapy care in Khayelitsha, South Africa

    Conceptions of agency and constraint for HIV-positive patients and healthcare workers to support long-term engagement with antiretroviral therapy care in Khayelitsha, South Africa

    Item type: Journal Article • Journal: African Journal of AIDS Research
    In the context of the optimism around antiretroviral therapy (ART) as prevention of HIV/AIDS, addressing the barriers to long-term ART adherence is critical. This is particularly important given the tendency to individualise or use a blame discourse when exploring why...
  6. Love matters: exploring conceptions of love in Rwanda and Swaziland and relationship to HIV and intimate partner violence

    Love matters: exploring conceptions of love in Rwanda and Swaziland and relationship to HIV and intimate partner violence

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Health risks such as intimate partner violence (IPV) and HIV infection often occur within intimate sexual relationships, yet the study of love and intimacy is largely absent from health research on African populations. This study explores how women and men...