Now showing items 1-2 of 2

    • Mentorskap in die maatskaplike funksionering van die seun in sy laat-middelkinderjare 

      Steytler, Johannes Petrus Du Plessis (North-West University, 2007)
      The boy in his late middle childhood faces enormous changes — physically, socially and mentally. World-wide, people experience challenges - politically and economically as well as regarding social structures such as ...
    • A remarkable recent transition in the solar dynamo 

      De Jager, C.; Potgieter, M.S.; Akasofu, S.I.; Duhau, S.; Livingston, W.C.; Nieuwenhuijzen, H. (Springer, 2016)
      We summarize the major aspects of the remarkable, fairly long lasting period (∼2005 to ∼2010) of low solar activity, that we will call the Transition. It is the transitional stage between the Grand Maximum of the 20th ...