The purpose of this study was to understand what knowledge and skills retired educators have and how these skills can be harnessed and utilised to benefit career development programmes in Botswana. The Tri-KCC conceptual model of career development was deductively and inductively developed from an interplay of the economics of knowledge management, the epistemology of constructivism, career psychology and gerontology. A mixed methods-sequential explanatory was used in this study, following assumptions of pragmatism. The participants of the study were retired educators in Botswana, with a convenience sample located in Gaborone. The participants had retired between 2000 and 2012. One hundred and eight participants (108), out of a sample of 200 responded to a survey questionnaire. Sixteen (16) participants from the survey formed focus group discussions of 5, 5 and 6 participants each. The participants were purposively selected through respondent directed and snowball techniques. The quantitative aspect of the study was conducted first, followed by the qualitative aspect. The quantitative phase helped to explore the concept of harnessing experiential knowledge of the retired educators. The survey questionnaire highlighted the following soft skills of retired educators: self-awareness and others-awareness, leadership, mentoring and counselling. The quantitative stage informed the qualitative stage during which the focus groups took place. Thus the qualitative phase had more weighting in the study. Quantitative data was analysed descriptively and inferentially, while thematic analysis was used for qualitative data. Results confirmed that retired educators have acquired a great wealth of knowledge and skills and that the success of being an educator is linked to both professional and personal identities. In addition, experiences that were meaningful to the retired educators were those where self-discovery boosted their self-esteem. Botswana is losing skilled resources to the early retirement age. In view of the findings, the Tri-KCC conceptual model was constructed to incorporate knowledge capture and management to guide practice. Career construction theory, through narratives of retired educators, was proposed to guide the practice of career development. Based on the results, it appears that an improved career development theory and practice that utilises retired professionals may not only benefit Botswana but other countries as well. / Thesis (PhD)--University of Pretoria, 2014. / tm2015 / Educational Psychology / PhD / Unrestricted

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Nesta dissertação é apresentada uma modelagem analítica para o processo evolucionário formulado pela Teoria da Evolução por Endossimbiose representado através de uma sucessão de estágios envolvendo diferentes interações ecológicas e metábolicas entre populações de bactérias considerando tanto a dinâmica populacional como os processos produtivos dessas populações. Para tal abordagem é feito uso do sistema de equações diferenciais conhecido como sistema de Volterra-Hamilton bem como de determinados conceitos geométricos envolvendo a Teoria KCC e a Geometria Projetiva. Os principais cálculos foram realizados pelo pacote de programação algébrica FINSLER, aplicado sobre o MAPLE. / This work presents an analytical approach for modeling the evolutionary process formulated by the Serial Endosymbiosis Theory represented by a succession of stages involving different metabolic and ecological interactions among populations of bacteria considering both the population dynamics and production processes of these populations. In such approach we make use of systems of differential equations known as Volterra-Hamilton systems as well as some geometric concepts involving the KCC Theory and the Projective Geometry. The main calculations were performed by the computer algebra software FINSLER based on MAPLE.

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Nesta dissertação é apresentada uma modelagem analítica para o processo evolucionário formulado pela Teoria da Evolução por Endossimbiose representado através de uma sucessão de estágios envolvendo diferentes interações ecológicas e metábolicas entre populações de bactérias considerando tanto a dinâmica populacional como os processos produtivos dessas populações. Para tal abordagem é feito uso do sistema de equações diferenciais conhecido como sistema de Volterra-Hamilton bem como de determinados conceitos geométricos envolvendo a Teoria KCC e a Geometria Projetiva. Os principais cálculos foram realizados pelo pacote de programação algébrica FINSLER, aplicado sobre o MAPLE. / This work presents an analytical approach for modeling the evolutionary process formulated by the Serial Endosymbiosis Theory represented by a succession of stages involving different metabolic and ecological interactions among populations of bacteria considering both the population dynamics and production processes of these populations. In such approach we make use of systems of differential equations known as Volterra-Hamilton systems as well as some geometric concepts involving the KCC Theory and the Projective Geometry. The main calculations were performed by the computer algebra software FINSLER based on MAPLE.

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<p>The research topic of this PhD thesis is a comparative analysis of classical specic&nbsp;geometric frameworks and of their anisotropic extensions; the construction of three different&nbsp;types of Finsler frameworks, which are suitable for the analysis of the cancer cells population&nbsp;dynamical system; the development of the anisotropic Beltrami framework theory with the&nbsp;derivation of the evolution&nbsp;ow equations corresponding to different classes of anisotropic&nbsp;metrics, and tentative applications in image processing.</p> / <p>Predmet istraživanja doktorske disertacije je uporedna analiza klasičnih i specifičnih&nbsp;geometrijskih radnih okruženja i njihovih anizotropnih pro&scaron;irenja; konstrukcija &nbsp;tri Finslerova&nbsp;radna okruženja različitog tipa koja su pogodna za analizu dinamičkog &nbsp;sistema populacije&nbsp;kanceroznih ćelija; razvoj teorije anizotropnog Beltramijevog radnog okruženja i formiranje&nbsp;jednačina evolutivnog toka za različite klase anizotropnih metrika, kao i mogućnost primene&nbsp;dobijenih teorijskih rezultata u digitalnoj obradi slika.</p>