Articles by Author: Roelf Van Niekerk

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  1. Helen Suzman: a psychobiographical — psychosocial developmental trajectory study

    Helen Suzman: a psychobiographical — psychosocial developmental trajectory study

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    The primary aim of this study was to describe Helen Suzman's (1917–2009) psychosocial developmental trajectory within her socio-historical context through the application of the stage based description of psychosocial development by Erikson. Two methodological strategies were used. Alexander's psychobiographical model...
  2. The spiritual wellness of Beyers Naudé: A psychobiographical study of a South African anti-apartheid theologian

    The spiritual wellness of Beyers Naudé: A psychobiographical study of a South African anti-apartheid theologian

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    The study explores and describes Beyers Naudé's (1915–2004) spiritual wellness across his lifespan. Naudé's life history was uncovered through the systematic collection and analyses of life history materials. Data were interpreted applying the Wheel of Wellness model (WoW) by Sweeney...
  3. The career development of Christiaan Neethling Barnard: A psychobiography

    The career development of Christiaan Neethling Barnard: A psychobiography

    Item type: Journal Article • Journal: Journal of Psychology in Africa
    This study employs a psychobiographical case study to describe and interpret the career development of Christiaan Neethling Barnard, who performed the first human heart transplant. It interprets Barnard's life history according to the career development model of Greenhaus, Callanan and...
  4. Levinsonian Seasons in the Life of Steve Jobs: A Psychobiographical Case Study

    Levinsonian Seasons in the Life of Steve Jobs: A Psychobiographical Case Study

    Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology
    Steve Jobs (1955-2011) was not only a businessman renowned for his legacy of technological innovation and entrepreneurship. His life history indicates eras or seasons as prankster, hippie, family man, and cancer fighter. This psychobiographical case study entailed a psychosocial-historical analysis...
  5. Emily Hobhouse’s Psychosocial Developmental Trajectory as Anti-War Campaigner: A Levinsonian Psychobiography

    Emily Hobhouse’s Psychosocial Developmental Trajectory as Anti-War Campaigner: A Levinsonian Psychobiography

    Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology
    The aim of this psychobiography was to uncover, reconstruct and illustrate significant trajectories of psychosocial development and historical events over the lifespan of Emily Hobhouse (1860-1926). The British-born Hobhouse later became an anti-war campaigner and social activist who exposed the...
  6. A Psychobiographical Analysis of the Personality Traits of Steve Jobs’s Entrepreneurial Life

    A Psychobiographical Analysis of the Personality Traits of Steve Jobs’s Entrepreneurial Life

    Item type: Journal Article • Journal: Indo-Pacific Journal of Phenomenology
    There has been increasing interest in the attributes of successful entrepreneurs. Increasingly, too, research on entrepreneurship has focused on the identification of personality traits conducive to entrepreneurial success. The present study moves away from predicting entrepreneurial success and instead focuses...
  7. Belangrike ongewingsfaktore wat die natuurlike verspreiding van <em>schmidtia kalahariensis</em> stent en <em>enneapogon cenchroides</em> (licht) c. e. hubbard (e. <em>mollis</em> lehm) in Suidwes‐Afrika beïnvloed<sup>1</sup>

    Belangrike ongewingsfaktore wat die natuurlike verspreiding van <em>schmidtia kalahariensis</em> stent en <em>enneapogon cenchroides</em> (licht) c. e. hubbard (e. <em>mollis</em> lehm) in Suidwes‐Afrika beïnvloed<sup>1</sup>

    Die resultate van ‘n studie van die reaksie van twee belangrike eenjarige weidingsgrasse van Suidwes‐Afrika, Schmidtia kalahariensis en Enneapogon cenchroides, teenoor verskillende omgewingsfaktore word gerapporteer. Verskille tussen die twee spesies ten opsigte van ligenergievereistes, lengte van die lewensiklus, voedingsbehoeftes, smaaklikheid...
  8. The effect of stocking rate and lick supplementation on the performance of lactating beef cows and its impact on Highland Sourveld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    The Highland Sourveld of Natal is an important beef producing area. Although it covers only 13% of the total area of the province, it supports 18% of the beef cattle population.
  9. The effect of tebuthiuron on the vegetation of the thorn Bushveld of the Northern Cape – a preliminary report

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Two formulations of tebuthiuron i.e. Graslan 20P and Graslan 40P are currently being evaluated in the Molopo area. Tebuthiuron was applied aerially at ten application rates, in combination with two application dates.
  10. Die evaluasie van droëland <em>Cenchrus ciliaris</em> L. cv Molopo vir speenkalf‐produksie in die sentrale grasveld

    Item type: Journal Article • Journal: Journal of the Grassland Society of Southern Africa
    Speenkalfproduksie op droëland Cenchrus ciliaris‐weiding is by drie veeladings onder aanhoudende beweiding ondersoek (1978–83). Verskille in beskikbare bogrondse fitomassa (BBF), speenmassa en die ekonomie van speenkalfproduksie word bespreek.