Articles by Author: D Roos

Search results for D Roos

We found 33 results for you
  1. Preliminary results on species selection by animals on sour grassveld

    Preliminary results on species selection by animals on sour grassveld

    A study of species selection by cattle under a system of controlled selective grazing using wheel‐point surveys and fistulated animals has demonstrated that both techniques provide valuable information on the preference shown for such species as Andropogon amplectens, Eulalia villosa,...
  2. RATE OF EROSION IN THE CATCHMENT OF THE BULBERGFONTEIN DAM NEAR REDDERSBURG IN THE ORANGE FREE STATE

    RATE OF EROSION IN THE CATCHMENT OF THE BULBERGFONTEIN DAM NEAR REDDERSBURG IN THE ORANGE FREE STATE

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The volume of sediment in the Bulbergfontein Dam was computed after mapping the area of the dam and ascertaining the depth of the sediment by digging and augering. The watershed of the impoundment had been delimited by means of aerial...
  3. SHORT NOTES

    SHORT NOTES

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
  4. Soil nutrient ecology associated with <em>Acacia sieberana</em> at different tree densities in a South African savanna

    Soil nutrient ecology associated with <em>Acacia sieberana</em> at different tree densities in a South African savanna

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Three aspects of soil nutrient ecology in an Acacia sieberana savanna were studied. First, information was collected about the effects of the savanna tree species Acacia sieberana on soil fertility, in terms of isolated tree effects and in terms of...
  5. Threats to Enabling Contexts: Exploring Adolescents' Experiences of Aggression

    Threats to Enabling Contexts: Exploring Adolescents' Experiences of Aggression

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    This article explores adolescents' experiences of aggression in a secondary, multi-cultural school context in South Africa. The study group comprised of boys (n=24) and girls (n=17), attending grades 8–12. An inductive qualitative research approach was chosen where participants wrote about...
  6. Processes and Functions in Higher Education Students Adjusting to a New Learning Environment: Applying The Mmogo<sup>tm</sup>-Method

    Processes and Functions in Higher Education Students Adjusting to a New Learning Environment: Applying The Mmogo<sup>tm</sup>-Method

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    This article explored the processes and functions amongst a community of students who had to adjust to new social and academic settings. Thirteen university students of a predominantly seTswana ethnic background participated in the study (males = 5, females =...
  7. Expressive Art in Cross-Cultural Group Supervision: Applying the Mmogo-Method™

    Expressive Art in Cross-Cultural Group Supervision: Applying the Mmogo-Method™

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    Academic mobility has increased the tendency of students to study in foreign countries, which poses various personal, interpersonal and contextual challenges to the cross-cultural supervision relationship. This study explored the themes that emerged in a cross-cultural supervision relationship through the...
  8. The Mmogo-Method™: Discovering Symbolic Community Interactions

    The Mmogo-Method™: Discovering Symbolic Community Interactions

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    In this article the development and implementation of the Mmogo-Method™ is discussed as a culture-sensitive data collection method. The Mmogo-Method™ provides opportunities for social researchers to gain a deeper understanding of the cultural symbolism in which social life is embedded...
  9. Positive Adaptation in a Community of Postgraduate Students: Applying the Mmogo-method™

    Positive Adaptation in a Community of Postgraduate Students: Applying the Mmogo-method™

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    This study explored the experiences of postgraduate psychology students exposed to continuous challenges and described their positive adaptation as a community. Three males and 14 females (age range: 23–30 years; 1 black, 3 coloured, 2 Indian and 11 white) took...
  10. Older Persons' Experiences of Loneliness: A South African Perspective

    Older Persons' Experiences of Loneliness: A South African Perspective

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    The aim of this study was to understand and describe older persons' experiences of loneliness and their perceptions of the factors contributing to loneliness and ways of managing loneliness. The study comprised 31 research participants (males = 3, females =...