Text in English with abstracts in English, Afrikaans and Tswana with keywords in English and Tswana / Displacement in the South African context is a complex and diverse phenomenon which is under-researched, particularly from the point of view of post-resettlement stress. The Meetse-a-tala community from Groenwater, Northern Cape, was resettled in 1964 and returned in 1999 to their ancestral land after a 25 year struggle to do so. The community anticipated that the land would present all the natural resources they had in 1964, but unfortunately, when they returned, the outlook seemed a lot different. / Verskuiwing in die Suid-Afrikaanse konteks is ‘n diverse en komplekse verskynsel wat nog nie voldoende nagevors is, veral vanuit die oogpunt van post-hervestigingsstres nie. Die Meetse-a-tala-gemeenskap van Groenwater in Noord-Kaap is in 1964 hervestig en het in 1999 teruggekeer na die land van hul voorouers na ‘n 25 jaarlange stryd om dit te bewerkstellig. Die gemeenskap het verwag dat die gebied weer al die natuurlike hulpbronne sou aanbied wat hulle in 1964 gehad het, maar ongelukkig, met hul terugkeer, het die vooruitsigte heel anders gelyk. / Tiragalo ya go fudusiwa ka dikgoka mo bokaong jwa Aforikaborwa e tlhagisa marara a a farologaneng ka ntlha ya dipatlisiso tse di lekanyeditsweng malebana le kgatelelo ya maikutlo e e amanang le morago ga go fudusiwa. Baagi ba Meetse-a-tala go tswa kwa Groenwater, kwa Kapabokone, ba itemogetse tiragalo ya go fudusiwa ka 1964 mme morago ga go kgaratlha dingwaga tse 25 go boela kwa lefatsheng la badimo ba bona, ba boetse ka 1999. Baagi ba ne ba solofetse gore lefatshe le tlaa ba neela ditlamelo tsotlhe tsa tlholego tse ba neng ba na natso fa ba tsamaya ka 1964, mme ka bomadimabe, e rile fa ba bowa, ba fitlhela le lebega le farologane thata. / Anthropology and Archaeology / M.A. (Anthropology)

Text in German, with German, English and Southern Sotho summaries / Includes bibliographical references (leaves 149-153) / Die praktisch-theologische Studie untersucht spirituelle Bedürfnisse von ambulanten Palliativpatienten. Dazu wurden Fokusgruppendiskussionen mit Teams aus der ambulanten Palliativversorgung in Nordhessen durchgeführt und diese nach ihren Erfahrungen und Beobachtungen gefragt. Theoretische Grundlagen zur Spiritualität im Kontext der Palliativversorgung bilden den Rahmen zur Auswertung der empirischen Masterarbeit mittels qualitativer Inhaltsanalyse. Der Befund zeigt, dass das Erkennen von spirituellen Bedürfnissen bei Patienten die Teammitglieder mehrheitlich vor Herausforderungen stellt und multiple Verunsicherung sowie Probleme im Umgang bestehen. Außerdem prägen persönliche Überzeugungen ihre Wahrnehmung maßgeblich. Die beobachtete Spiritualität ist überwiegend kirchlich geprägt und beruht auf christlichen Elementen wie Gebete, Glauben oder Begleitung durch PfarrerInnen. Teammitglieder sprechen zudem Begegnungen, „Dasein“ und (Kirchen)Musik eine spirituelle Dimension zu. Es gibt auch Patienten, die keine spirituellen Bedürfnisse haben oder derartiges ablehnen. Die Praktische Theologie könnte zukünftig als bedürfnisorientierte Kompetenzgeberin dienen, damit Mitarbeitende aus dem Gesundheitssystem befähigt werden, spirituelle Bedürfnisse ihrer Patienten wahrzunehmen, zu reflektieren und ihnen angemessen zu begegnen. / This practical theological study examined the spiritual needs of outpatient palliative care patients. Focus group discussions were conducted with outpatient palliative care teams. They were asked about their experiences and observations. Theoretical foundations of spirituality and palliative care formed the framework for the evaluation of empirical research by using qualitative content analysis. Findings show that recognition of spiritual needs in patients poses a challenge to the majority of team members, as well as insecurities and problems in dealing with them. The observed spirituality is predominantly ecclesiastical and based on Christian elements such as prayers, faith and accompaniment by pastors. Team members address encounters, "being" and music as spiritual dimensions. There are also patients who have no spiritual needs. In future, practical theology could serve as a needs-based provision of competences, so that employees of health systems can be empowered to perceive, reflect on and adequately respond to the spiritual needs of their patients. / Boithuto jwa thutobomodimo bo tlhatlhobile ditlhokwa tsa semoya tsa balwetse ba tlhokomelo ya malwetse a bofelelo ya kalafo ya balwetse ba kwa ntle. Dipuisano tsa setlhopha tsa tsepamo di ne tsa dirwa ka ditlhopha tsa tlhokomelo ya malwetse a bofelelo a kalafo ya balwetse ba kwa ntle. Ba ne ba bodiwa ka maitemogelo le ditemogo tsa bona. Metheo ya thutobomodimo le tlhokomelo ya malwetse a bofelelo di bopile letlhomeso la tlhotlhwafatso ya patlisiso ya mmatota ka go dirisa tshetshereganyo ya diteng tsa boleng. Dipatlisiso di bontsha fa kamogelo ya ditlhokwa tsa semoya mo balwetseng e tlisa kgwetlho mo bontsing jwa ditokololo tsa setlhopha, ga mmogo le go sa itshepeng go gontsi le mathata a go samagama le tsona. Bosemoya jo bo bonwang bontsi ke jwa sekeresete, mme bo ikaegile ka dielemente tsa Bokeresete jaaka dithapelo, tumelo le tshwaragano le baruti. Ditokololo tsa setlhopha di bua ka ga dikgolagano, "go nna" le mmino jaaka ditekanyo tsa semoya. Gape go na le balwetse ba ba se nang ditlhokwa tsa semoya. / Philosophy, Practical and Systematic Theology / M. Th. (Practical Theology)

Certaines recherches ont investigué le traitement visuel de bas et de plus hauts niveaux chez des personnes neurotypiques et chez des personnes ayant un trouble du spectre de l’autisme (TSA). Cependant, l’interaction développementale entre chacun de ces niveaux du traitement visuel n’est toujours pas bien comprise. La présente thèse a donc deux objectifs principaux. Le premier objectif (Étude 1) est d’évaluer l’interaction développementale entre l’analyse visuelle de bas niveaux et de niveaux intermédiaires à travers différentes périodes développementales (âge scolaire, adolescence et âge adulte). Le second objectif (Étude 2) est d’évaluer la relation fonctionnelle entre le traitement visuel de bas niveaux et de niveaux intermédiaires chez des adolescents et des adultes ayant un TSA. Ces deux objectifs ont été évalué en utilisant les mêmes stimuli et procédures. Plus précisément, la sensibilité de formes circulaires complexes (Formes de Fréquences Radiales ou FFR), définies par de la luminance ou par de la texture, a été mesurée avec une procédure à choix forcés à deux alternatives. Les résultats de la première étude ont illustré que l’information locale des FFR sous-jacents aux processus visuels de niveaux intermédiaires, affecte différemment la sensibilité à travers des périodes développementales distinctes. Plus précisément, lorsque le contour est défini par de la luminance, la performance des enfants est plus faible comparativement à celle des adolescents et des adultes pour les FFR sollicitant la perception globale. Lorsque les FFR sont définies par la texture, la sensibilité des enfants est plus faible comparativement à celle des adolescents et des adultes pour les conditions locales et globales. Par conséquent, le type d’information locale, qui définit les éléments locaux de la forme globale, influence la période à laquelle la sensibilité visuelle atteint un niveau développemental similaire à celle identifiée chez les adultes. Il est possible qu’une faible intégration visuelle entre les mécanismes de bas et de niveaux intermédiaires explique la sensibilité réduite des FFR chez les enfants. Ceci peut être attribué à des connexions descendantes et horizontales immatures ainsi qu’au sous-développement de certaines aires cérébrales du système visuel. Les résultats de la deuxième étude ont démontré que la sensibilité visuelle en autisme est influencée par la manipulation de l’information locale. Plus précisément, en présence de luminance, la sensibilité est seulement affectée pour les conditions sollicitant un traitement local chez les personnes avec un TSA. Cependant, en présence de texture, la sensibilité est réduite pour le traitement visuel global et local. Ces résultats suggèrent que la perception de formes en autisme est reliée à l’efficacité à laquelle les éléments locaux (luminance versus texture) sont traités. Les connexions latérales et ascendantes / descendantes des aires visuelles primaires sont possiblement tributaires d’un déséquilibre entre les signaux excitateurs et inhibiteurs, influençant ainsi l’efficacité à laquelle l’information visuelle de luminance et de texture est traitée en autisme. Ces résultats supportent l’hypothèse selon laquelle les altérations de la perception visuelle de bas niveaux (local) sont à l’origine des atypies de plus hauts niveaux chez les personnes avec un TSA. / Most studies investigating visual perception in typically developing populations and in Autism Spectrum Disorder (ASD) have assessed lower- (local) and higher-levels (global) of processing in isolation. However, much less is known about the developmental interactions between mechanisms mediating early- and intermediate-level vision in both typically developing populations and in ASD. Based on such premise, the present thesis had two main objectives. The first objective (Study 1) was to evaluate the developmental interplay between low- and intermediate-levels of visual analysis at different periods of typical development (school-age, adolescence and adulthood). The second objective (Study 2) was to evaluate the functional relationship between low- and intermediate-levels of visual analysis in adolescents and adults diagnosed with ASD. Common methodologies were used to assess both objectives. Specifically, sensitivity to slightly curved circles (Radial Frequency Patterns or RFP), defined by luminance or texture information, was measured using a two alternative temporal forced choice procedure. Results obtained in Study 1 demonstrated that local information defining a RFP (mediated by intermediate visual mechanisms) differentially affected sensitivity at different periods of development. Specifically, when the contour was luminance-defined, children performed worse when compared to adolescents and adults only when RFPs targeted a global processing style (few deformations along the RFP’s contour). When RFPs were texture-defined, children’s sensitivity was worse compared to that of adolescents and adults for both local and global conditions. Therefore, timing of adult-like sensitivity to RFPs is dependent on the type of local physical elements defining its global shape. Poor visual integration between low and intermediate visual mechanisms, which could be attributed to immature feedback and horizontal connections as well as under-developed visual cortical areas, may account for such reduced sensitivity in children. Results obtained from Study 2 demonstrated that manipulating the local physical elements of RFPs impacts visual sensitivity in ASD. Specifically, sensitivity to RFPs is unaffected in ASD only when visual analysis is dependent on local deformations of luminance-defined contours. However, sensitivity is reduced for both local and global visual analysis when shapes are texture-defined. Such results suggest that intermediate-level, shape perception in ASD is functionally related to the efficacy with which local physical elements (luminance versus texture) are processed. It is possible that abnormal lateral or feed-forward / feedback connectivity within primary visual areas in ASD, which possibly arise from excitatory / inhibitory signalling imbalance, accounts for differential efficacy with which luminance and texture information is processed in ASD. These results support the hypothesis that atypical higher-level perception in ASD, when present, may have early (local) visual origins.

Abstract in English, Southern Sotho and Afrikaans / South African chartered accountants (CAs(SA)), who are primarily trained as financially orientated technical specialists, play a significant role as part of management teams, which require expertise in leadership, strategy, marketing, communication and teamwork among other managerial skills. However, it has been found that accounting professionals have inherent characteristics that could act as barriers to career transition and adaptability in the volatile and challenging accounting profession. This study employed an interpretative phenomenological analysis research design to gain insights on the way CAs(SA) in the financial services sector have managed to overcome barriers and leverage enablers to transition their careers. Accordingly, interviews were conducted with CAs(SA) who occupy or have occupied a management position in the financial services sector. The findings revealed that the participants had prepared themselves for transition by gaining credibility and confidence by means of exposing themselves to challenging work, leading others, taking part in varied activities, updating their substantive knowledge base and using mentors. Through their attitudes, behaviour and decisions, participants were able to influence their career development context by being adaptable. Further, participants revealed that they were able to overcome barriers by gaining practical experience and exposure to varied tasks and career development opportunities, reading, listening and further training and education. Participants were also able to overcome barriers and create enablers by learning from others through informal mentorships and working in strong teams, which limited the extent to which they had to learn from their own mistakes. These insights could benefit not only CAs(SA) themselves but also professional accounting bodies, academic institutions, training organisations and employers of CAs(SA). / Di-chartered accountant tsa Afrika Borwa (CAs(SA)), ba rupetsweng ka sehlooho jwalo ka ditsebi tsa setekgeniki ka tsa ditjhelete, ba bapala karolo ya bohlokwa dihlopheng tsa bookamedi tse hlokang botsebi ho tsa boetapele, meralo, papatso, dikgokahano le tshebetso ya sehlopha, hara ditsebo tse ding tsa bookamedi. Leha ho le jwalo, ho fumanwe hore diprofeshenale tsa accounting di na le ditlwaelo tse tebileng tse ka iketsang dithibelo tsa kgolo mosebetsing le phetophetoho kahare ho profeshene ya accounting e dulang e sa tsitsa hape e na le diphephetso. Boithuto bona bo sebedisitse moralo wa patlisiso wa kutlwiso ya batho ya ntho e itseng ho fumana tsebo ka mokgwa oo diCA(SA) lekaleng la ditshebeletso tsa ditjhelete ba kgonneng ho fenya dithibelo tse jwalo le ho sebedisa dithutso ho hola mesebetsing ya bona. Ka tsela eo, di-inthavu di entswe le diCA(SA) tse maemong (kapa tse kileng tsa ba maemong) a bookamedi kahara lekala la ditshebeletso tsa ditjhelete. Diphetho di bontshitse hore bankakarolo ba itokiseditse phetoho ka ho iphumantsha bokgolwehi le boitshepo ka ho ipepesetsa mosebetsi o phephetsang, ho etella ba bang pele, ho nka karolo mesebetsing e fapaneng, ho ntjhafatsa ditsebo tsa bona le ka ho sebedisa batataisi. Ka mehopolo ya bona, boitshwaro le diqeto, bankakarolo ba ile ba kgona ho susumetsa ntshetsopele ya mesebetsi ka hore ba kgone ho fetofetoha. Ho feta moo, bankakarolo ba supile hore ba kgonne ho fenya dithibedi ka ho fumana tsebo ya ketso le ho ipepesetsa mesebetsi e fapaneng le menyetla ya ntlafatso ya tshebetso, ka ho bala, ho mamela le ho etsa dithuto le dithupelo tsa ntshetsopele ya thuto. Bankakarolo ba boetse ba kgonne ho hlola dithibelo le ho hlahisa dithusi ka ho ithuta ho tswa ho batho ba bang ka ditataiso tse sa hlophiswang le ka ho sebetsa le dihlopha tse matla, e leng ho neng ho fokotsa makgetlo ao ka ona ba neng ba tlameha ho ithuta ka diphoso tsa bona. Dintlha tsena di ka ba molemo eseng feela ho diCA(SA) ka bo tsona, empa le ditheo tsa profeshenale tsa accounting, ditsi tsa accounting, mekgatlo ya thupelo le bahiri ba diCA(SA). / Suid-Afrikaanse geoktrooieerde rekenmeesters (CA’s(SA)) wat primêr as finansieelgeoriënteerde tegniese spesialiste opgelei is, speel 'n beduidende rol in bestuurspanne wat kundigheid in leierskap, strategie, bemarking, kommunikasie en spanwerk en ander bestuursvaardighede vereis. Daar is egter bevind dat rekeningkundige praktisyns inherente eienskappe het wat struikelblokke kan wees vir loopbaanoorgang en aanpasbaarheid in die ongestadige en uitdagende rekeningkundige beroep. Hierdie studie het 'n interpretatiewe fenomenologiese ontledingnavorsingsontwerp gevolg om insig te bekom oor die wyse waarop CA’s(SA) in die finansiële sektor daarin geslaag het om sulke struikelblokke en hefboominstaatstellers te bowe te kom om loopbaanoorgang te bereik. Onderhoude is dienooreenkomstig met die CA’s(SA) gehou wat bestuursposisies in die finansiële sektor beklee of beklee het. Die bevindings het gewys dat die deelnemers hulleself vir oorgang voorberei het deur geloofwaardigheid en vertroue te verkry deur blootstelling aan uitdagende werk, om ander te lei, deelname aan gevarieerde aktiwiteite, om hulle substantiewe kennisbasis op te dateer en om mentors te gebruik. Deur aanpasbare houdings, gedrag en besluite kon die deelnemers hulle loopbaanontwikkelingskonteks beïnvloed. Die deelnemers het ook aangedui dat hulle struikelblokke te bowe kon kom deur praktiese ervaring en blootstelling aan gevarieerde take en loopbaanontwikkelingsgeleenthede, en deur lees, luister en deelname aan verdere onderwys en opleiding. Die deelnemers was voorts in staat om struikelblokke te oorkom en instaatstellers daar te stel deur by ander te leer deur informele mentorskap en om in sterk spanne te werk, wat die mate waarin hulle uit hulle eie foute moes leer, beperk het. Hierdie insigte behoort nie net CA’s(SA) te baat nie, maar ook professionele rekeningkundige liggame, akademiese instellings, opleidingsorganisasies en werknemers van CA’s(SA). / Management Accounting / M. Phil. (Accounting Sciences)

Ο σχεδιασμός και η εφαρμογή Περιφερειακών Δορυφόρων Λογαριασμών Τουρισμού (Π-ΔΛΤ) στον ελλαδικό χώρο αποτελεί ένα από τα κύρια ζητούμενα από πλευράς τουριστικής και γενικότερα οικονομικής πολιτικής σε επίπεδο περιφέρειας. Η παρούσα διατριβή προσεγγίζει το πλαίσιο των Δορυφόρων Λογαριασμών Τουρισμού (ΔΛΤ) και την μεθοδολογία προσαρμογής τους σε περιφερειακό επίπεδο. Παρεμβαίνει με τις απαραίτητες μεθοδολογικές αναδιατάξεις σε ένα συστηματοποιημένο πλαίσιο που προτείνει ο Παγκόσμιος Οργανισμός Τουρισμού (ΠΟΤ) για την αξιολογική προσέγγιση των στατιστικών πηγών και δεδομένων με αναλυτική αξία για την κατάρτιση ΔΛΤ. Οι αναδιατάξεις στο πλαίσιο συντελούνται σε δύο επίπεδα. Το πρώτο αφορά στην επέκταση των αναλυτικών του δυνατοτήτων σε περιφερειακό επίπεδο ανάλυσης. Σε δεύτερο επίπεδο οι τροποποιήσεις στο πλαίσιο ακολουθούν τις θεωρητικές και μεθοδολογικές αναθεωρήσεις που έχουν συντελεστεί στα προσφάτως αναθεωρημένα διεθνή πρότυπα για την τουριστική στατιστική, τους Δορυφόρους Λογαριασμούς Τουρισμού και τα μακροοικονομικά πλαίσια με τα οποία συνδέονται. Ως παράδειγμα εφαρμογής του αναβαθμισμένου πλέον πλαισίου έχει επιλεγεί η περίπτωση της Ελλάδος. Η μεθοδολογική και αξιολογική προσέγγιση της διατριβής επιφέρει βελτιώσεις στο πλαίσιο καταγραφής και αξιολόγησης του ΠΟΤ και χαρτογραφεί το στατιστικό σύστημα της χώρας κατά τρόπο συστηματοποιημένο ως προς τις αναλυτικές ανάγκες των Π-ΔΛΤ, συνιστώντας ένα από τα πρώτα θεμελιώδη βήματα προς την μακρά και απαιτητική πορεία για την κατάρτισή τους στην χώρα μας. / Designing and implementing Regional Tourism Satellite Accounts (R-TSA) in Greece is one of the key objectives in terms of tourism and general economic policy at regional level. This thesis approaches the Tourism Satellite Account (TSA) framework and its methodological adaptation to regional level. It proposes the necessary methodological adjustments in a systematic framework recommended by the World Tourism Organization (UNWTO) for documenting tourism statistics for TSA compilation. Framework adjustments take place at a twofold level: a) expanding the analytical capability at regional level and b) adapting the structure according to the theoretical and methodological revisions that have taken place in recently revised international standards for tourism statistics, Tourism Satellite Accounts and the macroeconomic frameworks with which they are linked. Greece has been chosen as a case study for applying the adjusted framework at regional level. The followed methodological and evaluative approach has improved the UNWTO framework for documenting tourism statistics and has led to a systemised mapping of the Greek statistical system in relation to the analytical needs projected for the compilation of R-TSAs, constituting one of the first fundamental steps towards a long and demanding process.

Abstract in English, Afrikaans and Sesotho / The study was inspired by the global phenomenon of failure rates of outsourcing ventures; yet, the outsourcing value proposition of 3PL providers is promising and potentially lucrative. The approach of the outsourcing venture was thus investigated, specifically how to align and integrate outsourcing parameters appropriately at the inception of the outsourcing venture in order to attain the benefits brought about by the outsourcing decision over the projected life of the outsourcing venture. To this effect, a strategic decision-making model, with the objective of ascertaining optimal alignment and integration was developed. The model comprises a dualistic development followed by a methodological process path to operationalise the strategic decision-making model. A services continuum (development one) is established, which is a permutation matrix that classifies four aspects of importance (service type, category of 3PL provider, strategic alignment and investment), in order to align the aspects optimally and enable appropriate model application. The services continuum is a conglomeration of nine models:  a capabilities matrix for 3PL provider services;  a framework for evaluating the supply chain role of 3PL providers;  a mathematical model;  a supplier selection and evaluation process;  a presentation of the Hayes–Wheelwright framework;  an outsourcing variables differentiated model;  four categories of the 3PL providers model;  an estimated path model; and  a process integration via survey data collection model. The services continuum was extended for utilisation with risk management practices, and an outsourcing risk matrix (development two) was established. The enablement of the outsource risk matrix is an element review, consisting of three categories: collaboration and integrated planning systems; performance measurement; and broad-based black economic empowerment. The strategic decision-making methodology process path was developed as having three phases, which operationalise the strategic decision-making model. The research was primarily focussed on literature reviews, with the models classified according to the services continuum. To a lesser extent, the research focussed on primary data, which served as model application input specifically for application requirements related to Sasol. The study established a universally applicable strategic decision-making model, as well as the application of the model for Sasol’s outbound (final packaged product) supply chain. / Thuto e ile ya kgothaletswa ke tshebetso ya lefatshe mabapi le maemo a ho hloleha ha ho nyaolwa/ntshuwa ha diprojeke kgwebong; leha ho le jwalo, tlhahiso ya boleng ba ditshebeletso tsa 3PL e a tshepisa ebile e ka ba le hlahiso ya tjhelete e ngata. Ka tsela eo, mokgwa wa ho tswa kgwebong o ile wa phenyekollwa, haholoholo mabapi le ho tsamaisana le ho kenyelletsa maemo a ho ntshetsa pele maruo ka mokgwa o nepahetseng ha ho thehwa kgwebo ya ho ntshetsa pele ho fumana melemo e tliswang ke qeto ya ho ntshetsa pele ka bophelo ba morero wa ho nyaolwa kgwebong. Ka lebaka lena, ho ntshetswa pele mokgwa/motlolo o motle wa ho etsa diqeto, ka sepheo sa ho netefatsa hore ho na le boemo bo nepahetseng le ho kopanngwa ho tsitsitseng. Motlolo ona o na le ntshetso pele e habedi e latelwang ke tshebetso ya mokgwa wa ho kenya tshebetsong tsela ya ho nka diqeto. Tatellano ya ditshebeletso e tswelang pele (ntshetsopele ya pele) e a thehwa, e leng phethoho ya tikoloho e kgethollang dikarolo tse nne tsa bohlokwa (mofuta oa tshebeletso, mokga wa mofani wa 3PL, kemiso ya moralo le matsete), e le ho dumellana le dintlha ka tsela e nepahetseng le ho etsa hore ho sebediswe motlolo hantle. Ditshebeletso tse tswelang pele ke kopano ya dimotlolo tse robong:  bokgoni ba maemo a tikoloho bakeng sa ditshebeletso tsa bafani ba 3PL;  sebopeho sa ho hlahloba phepelo ya tatellano ya ho nka karolo ha bafani ba 3PL;  mokgwa/motlolo wa mathemathiks;  kgetho ya mofani le mokgwa wa o hlahloba;  tlhaloso ya moralo wa Hayes-Wheelwright;  mefuta e fapaneng ya ho nyaola dikarolo tse fapaneng;  ntho tse mene tsa bafani ba 3PL;  mohlala wa tsela ya dimotlolo; le  mokgwa wa ho kopanya ka mokgwa wa ho bokella lesedi la dipatlisiso. Dishebeletso tse tswelang pele di ile tsa atoloswa bakeng sa tshebediso ya mekgwa ya taolo ya dikotsi, mme maemo a tikoloho a kotsing ya boipheliso (ntlafatso ya bobeli) a thehwa. Ho kengwa tshebetsong ha kotsi ya maemo a tikoloho ke ntho e shejwang botjha e nang le mekga e meraro: mekgwa ya ho sebedisana le meralo e kopanetsweng; tekanyo ya tshebetso; le ho matlafatsa bofuma ba batho batsho lehlakoreng la moruo. Mokgwa wa ho etsa diqeto o ile wa ntlafatswa e le o nang le mekgahlelo e meraro, e sebetsang ka mokgwa o motle wa ho etsa diqeto. Phuputso e ne e lebisitswe haholo ditabeng tsa tlhahlobo ya dingodilweng, le dimotlolo tse kgethollwang ho latela ditshebeletso tse tswelang pele. Ho ya ka tekanyo e nyenyane, dipatlisiso di lebisitse tlhokomelong ya lesedi la mantlha, le neng le sebetsa e le mokgwa wa ho kenya letsoho bakeng sa ditlhoko tsa kopo tse amanang le Sasol. Phuputso ena e thehile mokgwa wa ho etsa diqeto tse amohelehang lefatsheng ka bophara, hammoho le ho sebediswa ha setshwantsho sa phepelo ya tlhahiso ya Sasol (thlahiso ya ho qetela). / Dié studie is deur die globale verskynsel van die falingstempo van uitkontrakteringsondernemings geïnspireer; ten spyte hiervan lyk die uitkontrakteringswaardevoorstel van 3PL-verskaffers belowend en is dit potensieel winsgewend. Die benadering wat die uitkontrakteringonderneming volg, is derhalwe ondersoek en in die besonder hoe om die uitkontrakteringparameters by die aanvang van die uitkontrakteringonderneming toepaslik in lyn te stel en te integreer om die voordele te benut van die uitkontrakteringsbesluit oor die geprojekteerde lewe van die uitkontrakteringsonderneming. ’n Strategiesebesluitnemingsmodel wat ten doel het om optimale inlynstelling en integrasie te verseker, is dus ontwikkel. Die model bestaan uit ’n dualistiese ontwikkeling, gevolg deur ’n metodologiese prosesbaan om die strategiese besluitnemingsmodel te operasionaliseer. ’n Dienstekontinuum (ontwikkeling een) is op die been gebring, wat ’n permutasiematriks is wat vier aspekte van belangrikheid (dienssoort, kategorie van die 3PL-verskaffer, strategiese inlynstelling en investering) klassifiseer, ten einde die aspekte optimaal in lyn te stel en toepaslike modeltoepassing moontlik te maak. Die dienstekontinuum bestaan uit ’n versameling van nege modelle:  ’n bekwaamheidsmatriks vir 3PL-diensverskafferdienste;  ’n raamwerk om die voorsieningskettingsrol van 3PL-verskaffers te evalueer;  ’n wiskundige model;  ’n verskafferseleksie en evalueringsproses;  ’n aanbieding van die Hayes-Wheelwright-raamwerk;  ’n uitkontrakteringsveranderlike-gedifferensieerde model;  vier kategorieë van die 3PL-verskaffersmodel;  ’n geraamde baanmodel; en  prosesintegrasie deur middel van ’n ondersoekdata-insamelingsmodel. Die dienstekontinuum is uitgebrei vir gebruik by risikobestuurspraktyke en ’n uitkontrakteringrisikomatriks (ontwikkeling twee) is op die been gebring. Die bemagtiging van die uitkontrakteringsrisikomatriks is ’n elementhersiening, wat uit drie kategorieë bestaan: samewerkings- en geïntegreerdebeplanningstelsels; prestasiemeting; en breë swart ekonomiese bemagtiging. Die strategiese besluitnemingsmetodologieprosesbaan is met drie fases ontwikkel, wat die strategiese besluitnemingsmodel operasionaliseer. Die navorsing het hoofsaaklik op literatuuroorsigte gefokus, met die modelle wat volgens die dienstekontinuum geklassifiseer is. Die navorsing het in ’n mindere mata op die primêre data gekonsentreer, wat as die modeltoepassingsinset gedien het, in die besonder vir die toepassingsvereistes wat op Sasol betrekking het. Die studie het ’n universele, toepaslike strategiesebesluitnemingsmodel daargestel, asook die aanwending van die model op Sasol se uitgaande voorsieningsketting (finaal verpakte produk). / Business Management / D. Phil. (Management Studies)

Entrepreneurship education can contribute beneficially to learners’ schooling and should be structured and implemented (within programmes or curricula) to facilitate these benefits. In the South African secondary school curriculum, only Consumer Studies includes significant entrepreneurship education. Despite this potential of Consumer Studies, entrepreneurship education benefits do not always reach learners, due to underprepared teachers and the ineffective implementation of the curriculum. The study aimed to explore how and to what extent entrepreneurship education is embedded in the intended and enacted curriculum for Consumer Studies, with the purpose of proposing a framework to provide guidance to teachers for the effective structuring and implementation of entrepreneurship education in Consumer Studies. A multi-phase sequential exploratory and descriptive mixed-methods research design, rooted in constructivism, was used. Document analysis, an online survey and focus group interviews were used for data collection. Initially, entrepreneurship education in the overall South African secondary school curriculum was explored. Subsequently, entrepreneurship education in the Consumer Studies curriculum was focused on, investigating (a) the potential value it contributes to the subject, (b) the extent to which the curriculum is structured to support trepreneurship education, and (c) how teachers implement it in practice. Phase 3 identified best practice for entrepreneurship education internationally, which was compared to the findings from the previous two phases. Based on the previous findings, a framework for the effective structuring and implementation of entrepreneurship education in Consumer Studies, was ultimately proposed. It was apparent from the findings that entrepreneurship education only appears infrequently, unstructured and in isolated subjects in South Africa. Furthermore, even though Consumer Studies has great potential to contribute value to learners’ lives and is well structured to support constructivist entrepreneurship education, it transpired that this potential does not always reach learners, owing to the ineffective structuring and implementation of the curriculum. This study revealed the dearth of well-structured entrepreneurship education as part of the South African secondary school curriculum, with the exception of Consumer Studies. We anticipate that the framework will enhance teachers’ implementation of entrepreneurship education in Consumer Studies, which should augment the benefits thereof for learners. / Summary in English, Xhosa and Zulu / Thuto ya bogwebi e ka tshwaela ka tsela e e mosola mo go ithuteng ga morutwana mme e tshwanetse go rulaganngwa le go diragadiwa (mo mananeong gongwe kharikhulamo) go gokaganya dipoelo tseno. Mo kharikhulamong ya dikolo tsa sekontari tsa Aforikaborwa, ke fela Dithuto tsa Badirisi tse di akaretsang thuto e e botlhokwa ya bogwebi. Le fa go ntse go na le bokgoni jono mo Dithutong tsa Badirisi, dipoelo tsa thuto ya bogwebi ga di fitlhelele barutwana ka gale ka ntlha ya barutabana ba ba sa ipaakanyang mo go lekaneng le tiragatso e e seng mosola ya kharikhulamo. Maikaelelo a thutopatlisiso e ne e le go sekaseka gore thuto ya bogwebi e tseneletse go le kana kang le gone jang mo kharikhulamong e e lebeletsweng le e e fetisitsweng ya Dithuto tsa Badirisi, ka maikaelelo a go tshitshinya letlhomeso la go tlamela barutabana ka kaedi ya go rulaganya le go diragatsa thuto ya bogwebi mo Dithutong tsa Badirisi ka tsela e e mosola. Go dirisitswe mokgwa wa patlisiso wa magatomantsi le o o kopaneng mme o theilwe mo go lebeleleng maitemogelo. Go dirisitswe tshekatsheko ya dikwalo, tshekatsheko ya mo inthaneteng mmogo le dipotsolotso tsa ditlhopha tse di rileng go kokoanya data. Kwa tshimologong go ne ga sekasekiwa thuto ya bogwebi mo kharikhulamong ya dikolo tsa sekontari tsa Aforikaborwa ka kakaretso. Morago ga moo, go ne ga lebelelwa thuto ya bogwebi mo kharikhulamong ya Dithuto tsa Badirisi, go sekasekiwa (a) boleng jwa bokgoni jo e bo tshwaelang mo serutweng, (b) gore kharikhulamo e rulagantswe go tshegetsa thuto ya bogwebi go fitlha fa kae, le (c) ka moo barutabana ba e diragatsang ka gona. Legato la 3 le supile ditiragatso tse di gaisang tsa thuto ya bogwebi boditšhabatšhaba, tse di neng tsa bapisiwa le diphitlhelelo go tswa kwa magatong a mabedi a a fetileng. Go ikaegilwe ka phitlhelelo tse di fetileng, go ne ga felelediwa go tshitshintswe letlhomeso la go rulaganya le go diragatsa thuto ya bogwebi ka bokgoni mo Dithutong tsa Badirisi. Go ne go bonala go tswa mo diphitlhelelong gore thuto ya bogwebi e tlhagelela fale le fale, e sa rulagana mme gape e le mo dirutweng tsele le tsele mo Aforikaborwa. Mo godimo ga moo, le fa Dithuto tsa Badirisi di na le bokgoni jo bogolo jwa go oketsa boleng mo matshelong a barutwana mme di rulagane sentle go ka tshegetsa thuto ya bogwebi e e ikaegang ka maitemogelo, go tlhageletse gore ga se gantsi bokgoni jono bo fitlhelelang barutwana, ka ntlha ya thulaganyo le tiragatso e e seng mosola ya kharikhulamo. Thutopatlisiso eno e senotse tlhaelo ya thuto ya bogwebi e e rulaganeng sentle jaaka karolo ya kharikhulamo ya dikolo tsa sekontari tsa Aforikaborwa, kwa ntle fela ga Dithuto tsa Badirisi. Re solofela gore letlhomeso le tlaa tokafatsa tiragatso ya barutabana ya thuto ya bogwebi mo Dithutong tsa Badirisi, tse di tshwanetseng go oketsa mesola mo barutwaneng. / Imfundo yezamabhizinisi (intrepreneurship education) ingalekelela kakhulu impela, ihlomulise umfundi emfundweni yakhe, futhi kumele ihleleke futhi iqaliswe (ngaphakathi ezinhlelweni zokufunda noma amakharikhulamu) ngendlela ezohlinzeka umfundi ngale mihlomulo. Kwikharikhulamu yezikole zamabanga aphezulu (amasekhondari) zaseNingizimu Afrika, yisiFundo Sezabathengi (Consumer Studies) kuphela esiqukethe ingxenye enkundlwana impela yemfundo yezamabhizinisi. Nakuba isiFundo Sezabathengi sihlinzeka ngalolu sizo, imfundo yezamabhizinisi ayivamisile ukufinyelela kubafundi, ngenxa yothisha abangavuthiwe kahle noma abangazilungiselele ngokwanele, kanye nokuqaliswa nokuqhutshwa kwekharikhulamu ngendlela engagculisi neze futhi engakhiqizi izithelo ezinhle. Lolu cwaningo kuhloswe ngalo ukuhlola nokuhlaziya ukuthi imfundo yezamabhizinisi ifakwe kanjani futhi kangakanani kwikharikhulamu ehlosiwe futhi esiphasisiwe yesiFundo Sezabathengi, ngenhloso yokwenza isiphakamiso sohlaka oluzolekelela futhi lube ngumhlahlandlela wothisha ekuhleleni kahle nokuqhuba imfundo yezamabhizinisi esiFundweni Sezabathengi. Kulolu cwaningo kwasetshenziswa idizayini yocwaningo ehlolayo ezigaba-ziningi ezilandelanayo kanye nedizayini yocwaningo esebenzisa izindlela ezixubile ezichazayo, ezigxile ku-constructivism. Ukuhlaziywa kwemibhalo, ucwaningokuhlola (isaveyi) lweinthanethi kanye nezimposamibuzo (interviews) ezigxile emaqenjini athile, kwasetshenziselwa ukuqoqa idatha. Ekuqaleni, kwahlolwa futhi kwahlaziywa imfundo yezamabhizinisi kwikharikhulamu yonkana yezikole zamabanga aphezulu zaseNingizimu Afrika. Emva kwalokho, kwagxilwa kwimfundo yezamabhizinisi esiFundweni Sezabathengi, kuphenywa (a) ubugugu nokubaluleka kwemfundo yezamabhizinisi kulesi sifundo, (b) izinga lokuhleleka kwekharikhulamu ukuze ikwazi ukweseka imfundo yezamabhizinisi, kanye (c) nokuthi othisha bangayiqalisa futhi bayiqhube kanjani ngokoqobo futhi ngendlela ephathekayo imfundo yezamabhizinisi. Isigaba 3 sahlonza inkambiso yemfundo yezamabhizinizi ephuma phambili emhlabeni wonke jikelele, eyaqhathaniswa nalokho okwatholwa ezigabeni ezimbili ezedlule. Ngokususela kulokho okwatholwa ezigabeni ezedlule, kwahlongozwa uhlaka lokuhlelwa nokuqaliswa kahle kwemfundo yezamabhizinisi esiFundweni Sezabathengi. Uma kubhekwa izinto ezatholakala ocwaningweni, kwabonakala ngokucacile ukuthi imfundo yezamabhizinisi yayithe gqwa gqwa laphaya nalaphaya, futhi itholakala ngendlela engahlelekile, ezifundweni ezithile, ezimbalwa eNingizimu Afrika. Ngaphezu kwalokho, nakuba isiFundo Sezabathengi singaba nomthelela omuhle kakhulu ezimpilweni zabafundi futhi sikulungele noma sihleleke kahle ukuze sikwazi ukweseka i-constructivist entrepreneurship education, kwahlaluka ukuthi lo mthelela omuhle awuvamisile nezeukufinyelela kubafundi, ngenxa yokungahlelwa kahle kanye nokungaqaliswa ngendlela efanele kwekharikhulamu. Lolu cwaningo lwabonisa ukuntuleka kwemfundo yezamabhizinisi ehleleke kahle, njengengxenye yekharikhulamu yezikole zamabanga aphezulu zaseNingizimu Afrika, ngaphandle kwesiFundo Sezabathengi. Sibheke ukuthi lolu hlaka lwenze ngcono ukuqaliswa nokuqhutshwa kwemfundo yezamabhizinisi ngaphansi kwesiFundo Sezabathengi, futhi lokho kuyokhulisa imihlomulo yemfundo yezamabhizinisi kubafundi. / Curriculum and Instructional Studies / D. Phil. (Curriculum Development)

Nonlinear four-wave interactions (Snl) are critical for acquiring realistic spectra needed by operational wave models. High computational demand to calculate these interactions led to an approximation method named the Discrete Interaction Approximation (DIA) to be used broadly in the major operational wave models for a long time. However, the accuracy of the DIA has been controversial since it was first introduced and more precise approximations such as the Two Scale Approximation (TSA in short) are now available. The only issue with the initial TSA`s efficiency is performing an order of a magnitude slower than the DIA in speed. This study questions the exactness of the DIA while trying to increase the competence of the TSA by making improvements on its execution time. Particularly, in this thesis, the main effort is on the local scale term of the TSA since it is the part that consumes the most time while running the code. The findings of this work imply that the TSA can improve its operation speed significantly while maintaining its accuracy with making alterations in the code. By decreasing the number of bands in the local scale it is possible to run the TSA up to 7.5 faster than its initial version.

Abstract in English, Southern Sotho and Xhosa / Global poverty remains one of the significant challenges of human beings in the twenty-first century, despite the United Nation’s declaration that all people have the right to education, work, health, well-being; a healthier environment and equal opportunities. The active role of business organisations is vital and necessary to tackle this challenge. One of the mechanisms that can ensure the participation of business organisations in tackling the challenges of human beings is corporate social responsibility (CSR). Accordingly, the primary purpose of the study was to explore CSR initiatives in Ethiopia, focusing on the small and medium enterprises (SMEs) of the Tigrai Regional State. More specifically, the study aimed at assessing the perceptions SME owners and managers’ perceptions of CSR regarding their economic, legal, ethical, environmental and philanthropic responsibilities. The aim was also to investigate their CSR initiatives and to analyse the driving forces of and barriers to CSR interventions. An exploratory survey research design and a mixed method approach were followed to achieve these objectives. A probability sampling technique was applied to select the 400 sample respondents. A convenient sampling technique was applied to select 15 participants for interviews. Questionnaires, key-informant interviews and secondary documents were used as a means of data collection. Descriptive statistics such as percentages, means, and standard deviations were applied to analyse the quantitative data. The qualitative data was analysed using content analysis where items were transcribed, and emergent themes were identified. The findings of this study are that the SMEs surveyed have an appreciable level of CSR initiatives. They have care and concern towards their employees; the local community and the environment. Furthermore, the SMEs relatively protect the health and safety of their employees, protect against substance abuse and harassment of employees in the workplace; strive to provide professional training to their employees, and arrange orientation programmes, to mention but a few. SMEs have energy and water measurement systems and carry out philanthropic activities that can protect the well-being of the environment, but they are weak in recycling and energy conservation and in creating environmentally friendly new products. At community level, SMEs assist sports activities, road construction, religious organisations and local government. Furthermore, they create gainful employment opportunities. However, they give minimal attention to helping the disabled, war veterans, women, education, and similar areas. The quest for image building, keeping the well-being of the environment, ethical reasons and improving customer relations and loyalty were among the prime factors that motivated SMEs to participate in CSR initiatives. However, the concerted efforts of the enterprises’ participation in CSR activities were constrained by factors such as shortage of finance, lack of skilled and educated workforce who can implement the CSR initiatives and lack of training and information about CSR. To alleviate these constraints, thereby making SMEs the major actors in CSR initiatives, interventions by government and other stakeholders such as NGOs is essential. Furthermore, SMEs should follow a culture-oriented, ethics primary, motivated and collaborative approach rather than profit-oriented CSR. / Ubuhlwempu ehlabathini busengomnye umngeni onzima eluntwini kule nkulungwane yamashumi amabini ananye, nangona iZizwe Ezimanyeneyo zibethelela ukuba bonke abantu banelungelo lokufumana imfundo, umsebenzi, impilo, intlalontle, okusingqongileyo okunempilo namathuba alinganayo. Indima edlalwa ngamaqumrhu orhwebo ingundoqo nesidingo esibalulekileyo ekuhlaseleni lo mngeni. Enye indlela yokuqinisekisa ukuthatha inxaxheba kwamaqumrhu ezorhwebo ekulweni imingeni yoluntu kukulandela inkqubo yoXanduva Lwamaqumrhu Eluntwini, eyaziwa ngokuba yicorporate social responsibilityokanye eshunqulelwa ngokuba yiCSR. Ngoko ke injongo ephambili yolu phando yayikukuqwalasela imizamo yeCSR kwilizwe lase-Ethiopia, kugxininiswa kumashishini amancinci naphakathi (iiSME) kwiphondo eliyiTigrai Regional State. Ngokuthe gca, uphando lwalujolise ekuvavanyeni izimvo zabanini nabaphathi beeSMEngeCSR malunga noxanduva kwezoqoqosho, ezoMthetho, iinqobo zokuziphatha, ezendalo engqongileyo nezenzo zenceba. Enye injongo yayikukufumanisa ngamalinge eCSR nokuhlalutya iimeko eziphembelela nezithibaza imizamo yeCSR. Kwaqala kwenziwa uhlolo zimvo ekutshayeleleni uphando, kwalandeliswa ngomxube weendlela zophando ukuze kuphunyezwe iinjongo. Isampulu yabathathi nxaxheba abangama-400 yayingabantu abakhethwe nje kungajongwanga mpawu zithile. Kwabuya kwakhethwa isampulu yabathathi nxaxheba abali-15 kubantu ababekufuphi nabafumaneka lula ukuze kuqhutywe udliwano ndlebe nabo. Kwaqokelelwa iinkcukacha zolwazi/idatha ngokusebenzisa uluhlu lwemibuzo, udliwano ndlebe nabantu abaphambili nemibhalo eseyikade ikho ngalo mbandela. Ekuhlalutyeni idatha esekelwe kumanani kwenziwa ubalo ngokucacisa amanani anika iipesenti, imindilili neyantlukwano yezibalo ezifunyenweyo nomndilili. Idatha esekelwe kwingxoxo nokuzathuza yahlalutywa ngokuphengulula iziqulatho apho kwabhalwa ulwazi, kwaza kwachongwa imixholo ethile edulayo. Olu phando lufumanise ukuba iiSME zinamalinge eCSR ancomekayo. Zibonakalisa inkathalo kubaqeshwa bazo; kubahlali bendawo nakwindalo ezingqongileyo. Ngaphezulu, iiSME ziyazama ukuyiqaphela impilo nokhuseleko lwabaqeshwa bazo, ziyabakhusela ekusebenziseni gwenxa iziyobisi nasekuphathweni gadalala emsebenzini; zizama nokuqhuba uqeqesho olusemgangathweni kubasebenzi nokucwangcisa iinkqubo zokuqhelisa abafiki emsebenzini – le yimigudu nje embalwa eyenziwa ziiSME. Ezi SME zineenkqubo zokumeta/zokulinganisela amanzi nombane kwaye zenza imisebenzi yenceba yokukhusela indalo ezingqongileyo kodwa zibuthathaka ekusebenziseni kaninzi iimveliso, ekongeni umbane nasekwenzeni iimveliso ezintsha nezingayonakalisiyo indalo engqongileyo. Ekuhlaleni, iiSME zinceda kwezemidlalo, ekwakhiweni kweendlela, kwimibutho yezenkolo naseburhulumenteni bendawo. Ngaphezulu, zidala amathuba omsebenzi aluncedo. Noxa kunjalo, aziniki ngqwalasela yaneleyo ekuncedeni amagqala emfazwe, abafazi, ezemfundo neminye imiba eyeleleyo. Ukunxanelwa ukwakha igama elihle, ukugcina indalo engqongileyo, ukuphucula intsebenziswano nokuthembeka kwabaxumi yaba zezinye izinto ezikhuthaza ukuba iiSME zithathe inxaxheba kumalinge eCSR. Noxa kunjalo, imizamo ezinikeleyo yenkampani kwimisebenzi yeCSR yayithityazwa zizinto ezifana nokunqaba kwemali, ukungabikho koqeqesho nolwazi ngeCSR, ukunqongophala kwabasebenzi abafundileyo nabanezakhono ababenokwazi ukuqhuba imisebenzi yeCSR. Ukususa le miqobo nokwenza iiSME zibe ngabadlali abaphambili kwimigudu yeCSR, kunyanzelekile ukuba urhulumente angenelele, ngokunjalo nabanye abathathi nxaxheba abafana namaqumrhu angengowaseburhulumenteni (iiNGO). Ngaphaya koko iiSME kufuneka zilandele indlela yokusebenza ethathela ingqalelo inkcubeko, iinqobo zokuziphatha, inkuthazo nentsebenziswano ngaphezu kokwenza ingeniso yeCSR. / Tlala lefatsheng e dula e le nngwe ya diphephetso tsa bohlokwa ho batho selemo-kgolong sa bomashome a mabedi a motso o le mong, ho sa natswe phatlalatso ya mokgatlo wa Matjhaba a Kopaneng wa hore batho bohle ba na le tokelo ya thuto, mosebetsi, bophelo bo botle, boiketlo; tikoloho e phetseng hantle le menyetla e lekanang. Tshebetso e matla ya mekgatlo ya kgwebo e bohlokwa mme e ya hlokeha ho sebetsana le bothata bona. E nngwe ya ditsela tse ka netefatsang bonkakarolo ba mekgatlo ya kgwebo ho lwantsheng diphephetso tsa batho ke boikarabello ba mekgatlo setjhabeng (CSR). Kahoo, morero wa sehlooho wa phuputso e ne e le ho batlisisa matsholo a CSR Ethiopia, re tsepame hodima dikgwebo tse nyane le tse mahareng (diSME) tsa Tigrai Regional State. Ka ho toba ho feta, phuputso e reretswe ho lekanya maikutlo a beng ba diSME le maikutlo a baokamedi mabapi le CSR ka boikarabello ba bona ba moruo, molao, boitshwaro, tikoloho le boikarabello ba ho thusa ba bang. Sepheo e ne boetse e le ho batlisisa matsholo a bona a CSR le ho manonna ditshumetso le dithibelo tsa matsholo a CSR. Ho latetse moralo wa kutullo wa dipatlisiso hammoho le katamelo ya mekgwa e fapaneng ho fihlella dipheo tsena. Tekgeniki ya ho etsa sampole ya monyetla e sebedisitswe ho kgetha sehlopha sa baarabi ba 400. Tekgeniki ya ho etsa sampole e bonolo e sebedisitswe ho kgetha bankakarolo ba 15 ba diinthavu. Ho sebedisitse mathathamo a dipotso, diinthavu tsa ditsebi tsa bohlokwa le ditokomane tsa bobedi jwalo ka mokgwa wa pokeletso ya tlhahisoleseding. Dipalopalo tse hlalosang tse jwalo ka diperesente, dikakaretso, le dikgeloho tse tlwaelehileng di sebedisitswe ho manolla tlhahisoleseding ya bongata. Tlhahisoleseding ya boleng e manollotswe ka tshebediso ya manollo ya dikateng moo dintho di ileng tsa ngolwa fatshe kamora kgatiso mme hwa hlwauwa ditema tse hlahellang. Diphetho tsa phuputso ena ke hore diSME tse fupuditsweng di na le boemo bo amohelehang ba matsholo a CSR. Di hlokomela le ho tsotella bahiruwa ba tsona; setjhaba sa lehae hammoho le tikolohoh. Ho feta moo, ka kakaretso diSME di sireletsa bophelo bo botle le polokeho ya basebetsi ba tsona,di sireletsa kgahlano le tlhekefetso ya dithethefatsi le tlhekefetso ya basebetsi sebakeng sa tshebetso;di sitlalletsa ho fana ka thupelo ya seporofeshenale ho basebetsi ba tsona, le ho hlophisa mananeo a tsebiso sebakeng, ho qolla tse mmallwa feela. DiSME di na le merero ya tekanyo ya matla le metsi hape di etsa mesebetsi ya ho thusa baahi e ka sireletsang boiketlo ba tikoloho, empa dia fokola ha ho tluwa ho tshebediso hape ya dintho le poloko ya matla le ho hlahiseng dihlahiswa tse ntjha tse bolokang tikoloho. Boemong ba setjhaba, diSME di thusa ditshebetsong tsa dipapadi, kahong ya ditsela, mekgatlong ya bodumedi le ho mmuso wa lehae. Ho feta moo, di fana ka menyetla ya mesebetsi ya bohlokwa. Leha ho le jwalo, ha di shebane haholo le ho thusa ba nang le bokowa, masole a kgale, basadi, thuto, le dibaka tse jwalo ka tseo. Telekiso ya ho aha seriti, ho boloka boiketlo ba tikoloho, mabaka a boitshwaro le ho ntlafatsa maqhama a bareki le botshepehi e ne le a mang a mabaka a mantlha a kgannelang diSME ho nka karolo matsholong a CSR. Empa, maiteko a matla a dikgwebo tsena a ho nka karolo mesebetsing ya CSR a ne a thibelwa ke dintlha tse ka reng ho fokola ha tjhelete, tlhokeho ya basebetsi ba nang le tsebo le thuto ba ka kenyang matsholo a CSR tshebetsong le tlhokeho ya thupelo le lesedi mabapi le CSR. Ho hlola mathata ana, e le ho etsa diSME dibapadi tsa mantlha matsholong a CSR, ho hlokeha hore mmuso le baamehi ba bang ba jwalo ka mekgatlo ya diNGO ba kene dipakeng. Hapehape, diSME di lokela ho latela katamelo ya setso, boitshwaro, tjantjello le tshebedisano ho ena le CSR e shebaneng le phaello. / Graduate School of Business Leadership / D. B. L.

Text in English, Tswana / Low nutrient intake affects metabolism and growth in pregnant heifers and limits milk production in lactating cows on communal area smallholder dairy farms of the subtropics. Two studies were conducted during the current research. The first study evaluated effects of nutrient supply in standardized dairy diets on the growth and body reserves of pregnant Jersey heifers raised on communal area smallholder farms in a semi-arid zone of South Africa. Twenty-two farms with a total of 42 heifers, aged 22 to 28 months which were seven months pregnant at the beginning of the study were selected for the study. These represented the total number of farms with dairy cows in the area that were supported through a structured Dairy Development Program (DDP) of South Africa. Each farm had at least two pregnant Jersey heifers during the summer season of 2016. Each heifer was supplied 2.5 kg of a far-off (60-30 d prepartum) dry cow concentrate and increased to 3.3 kg of the same concentrate at close-up period (29-0 d prepartum). Feeding of concentrate was based on a standardized feeding program as recommended by DDP. During this study, no feeding treatment was imposed on the heifers. Eragrostis curvula hay was supplied by DDP. Daily intake of 7.2 and 5.4 kg; respectively for heifers at 60-30 d prepartum and 29-0 d prepartum was determined based on residual hay. Heifer diet (HD1) and heifer diet HD2 were therefore simulated respectively for cows at 60-30 d preparpartum and 29-0 d prepartum, respectively. Diets were assessed for nutrient composition using chemical analyses and in vitro ruminal degradation. Post ruminal nutrient absorption and animal responses were predicted using the Large Ruminant Nutrition System (LRNS) version 1.0.33 (level 1). Actual measurements of body weight (BW), body condition score (BCS) were done and blood was collected and analysed for proteins monthly. Heifers’ responses were validated against the model predicted values and comparative analysis of animal performance during pregnancy was done against the National Research Council (NRC, 2001) reference values. Relative to the minimum requirement for ruminants, both HD1 and HD2 diets had relative feed value (RFV) below 144. About 35% of HD1 dietary crude protein (CP) was within the slowly degrade neutral detergent fibre (NDF) fraction which is the neutral detergent fibre insoluble crude protein (NDFICP) while 32% was not available as the acid detergent insoluble crude protein (ADICP). Equally, HD2 diet had effectively 5.2% of CP as available protein and the fraction of the slowly degraded NDF constituted only 52.3% of the effective available protein. Energy density of HD1 and HD2 were 25% and 16% higher than expected at far-off and close-up period, respectively. The intake of metabolzable protein (MP) were 32 and 25% higher than predicted for the far-off and close-up period, respectively. Supply of MP was 37 % and was higher than NRC predictions of daily requirement in Jersey cow. This allowed BW gain of 29 kg and BCS of 0.33 which was within 25th percentile for pregnant heifers. Mean concentration of blood urea at both far-off and close-up periods deviated by 25% from NRC values. Creatinine (CR) concentration was 145 μmol /L at far-off and 155 μmol /L at close-up period. The second study assessed the adequacy of two lactation diets fed to 42 primiparous Jersey cows, aged 24 to 30 months during early (1-30 d postpartum) and peak (31-60 d postpartum) periods on the lactation performance of the cows. Cows received 4.5 and 5 kg of dairy concentrate at 1-30 d postpartum and peak milk (31-60 d postpartum) respectively. Eragrostis curvula hay was supplied ad libitum and dry matter intake (DMI) was estimated at 7.2 kg of hay/cow/day from residual hay. No feeding treatment was imposed except for the standardised diets typical to the production environment. Two simulated lactation diets (LD1 and LD2) were prepared based on dry matter intake (DMI) of grass hay and lactation concentrate. Diets were assessed for nutrient composition using wet chemistry and in vitro ruminal degradation. Nutrient supply of diets and absorption from the small intestines as well as cows’ responses were predicted using the Large Ruminant Nutrition System (LRNS) version 1.0.33 (level 1). Body weight and BCS were monitored, blood was collected and analysed for proteins monthly. A record of milk yield was taken daily, and milk was analysed for fat, protein, lactose and urea nitrogen weekly. Cows had DMI of 11.2 kg which was 12% higher than the expected at 1-30 d postpartum period and 11.6 kg which was 21% higher than the expected in 31-60 d postpartum cows. Diets had low available protein as % of dietary protein (LD1=46%; LD2=45%) and the slowly degraded NDF fraction (NDFICP) constituted 64% of the available protein. Intake of energy was 20% and 17% lower than the predicted value for the cows, respectively, at 1-30 d postpartum and 31-60 d postpartum period. Cows had negative energy balance of -6.5 and -5.6 Mcal respectively at 1-30 d postpartum and 31-60 d postpartum cows. Protein intake of lactating cows was low, which resulted in negative protein balance of 59% and 42% of cow’s daily requirement, respectively, at 1-30 d postpartum period and 31-60 d postpartum period. There was loss of BW and BCS, low milk yield, energy corrected milk (ECM: 9.50 kg/d) and feed efficiency (FE) of less than 1 (LD1= 0.85; LD2 =0.89) in cows at both periods. Composition of fat, protein and lactose in milk were negatively affected by the low level of dietary protein. Somatic cell count (SCC) in milk was 121 ± 13 x 103/ml and cows did not show signs of illness. Mean milk urea nitrogen (MUN) concentration was 12 ± 2.7 mg/dl reflecting the low protein status of the lactating cows. Cows had high creatinine concentration of 116 and 102 μmol /L at 1-30 d postpartum and 31-61 d postpartum period, respectively, which may indicate muscle breakdown due to heat stress relative to the hot production environment. Results showed that diets fed to dairy cows on communal area smallholder farms in Sekhukhune and Vhembe districts in Limpopo province had low feeding value and their low nutrient supply affected rumen fermentation, heifers’ ‘growth, body reserves and early lactation in Jersey dairy cows. In conclusion, diets supplied to dairy cows raised on smallholder farms are low in nutrients and do not support efficient growth in heifers and optimal milk production in early lactation. Development of a nutrition plan for improved dairy diets is required to maximise production and longevity in cows and enhance sustainability of dairy production on the smallholder farms in South Africa. / Go ja dijo tse di nang le dikotla tse di kwa tlase go ama metaboliseme le kgolo ya meroba e e dusang mme e ngotla tlhagiso ya mašwi ya dikgomo tse di tlhagisang mašwi mo dipolaseng tse dinnye tse di tlhakanetsweng mo mafelong a a mogote. Go dirilwe dithutopatlisiso di le pedi jaaka karolo ya patlisiso ya ga jaana. Thutopatlisiso ya ntlha e sekasekile ditlamorago tsa tlamelo ya dikotla mo dijong tsa teri tse di rulagantsweng mo kgolong le dirasefe tsa mmele tsa meroba ya Dijeresi e e dusang mo dipolaseng tse dinnye tse di tlhakanetsweng mo karolong e e batlileng e nna sekaka mo Aforika Borwa. Go tlhophilwe dipolase di le 22 tse di nang le meroba e le 42, e e bogolo jo bo magareng ga dikgwedi tse 22 le 28 mme e na le dikgwedi tse supa e ntse e dusa kwa tshimologong ya thutopatlisiso. Tsone di emetse palogotlhe ya dipolase tse di mo karolong eo tse di tshegediwang ke Lenaneo le le rulaganeng la Tlhabololo ya Teri (DDP). Polase nngwe le nngwe e ne e na le bonnye meroba ya Jeresi e le mebedi e e dusang ka paka ya selemo sa 2016. Moroba mongwe le mongwe o ne o fepiwa ka 2.5 kg ya dijo tse di omileng tsa dikgomo tsa fa go sa ntse go le kgakala (malatsi a le 60-30 pele ga go tsala) mme tsa okediwa go nna 3.3 kg fa malatsi a atamela (malatsi a le 29-0 pele ga go tsala). Dijo tseno di ne di di rulagantswe go ya ka lenaneo le le rulagantsweng la kotlo le le atlenegisitsweng ke DDP. Mo nakong ya thutopatlisiso eno, ga go na kalafi epe ya kotlo e e neng e patelediwa meroba. DDP e ne e tlamela ka furu ya eragrostis curvula. Go ja ga letsatsi le letsatsi ga meroba ga 7.2 le 5.4 kg ka nako ya malatsi a le 60-30 pele ga go tsala le malatsai a le 29-0 pele ga go tsala go ne go ikaegile ka furu e e setseng. Ka jalo go ne ga tlhagisiwa gape kotlo ya meroba ya 1 (HD1) le kotlo ya meroba ya 2 (HD2) mo dikgomong tse di mo malatsing a le 60-30 pele ga go tsala le malatsi a le 29-0 pele ga go tsala. Dikotlo tseno di ne tsa sekwasekwa go bona go nna gona ga dikotla mo go tsona go dirisiwa tshekatsheko ya dikhemikale mo mogodung. Go ne ga bonelwa pele monyelo ya dikotla morago ga go feta mo mpeng ya ntlha le tsibogo ya diphologolo go ya ka Thulaganyo ya Kotlo ya Diotli tse Dikgolo (LRNS) mofuta wa 1.0.33 (legato 1). Go dirilwe tekanyo ya boima jwa mmele (BW) le maduo a seemo sa mmele (BCS) mme go ne ga tsewa madi le go a sekaseka go bona diporoteini kgwedi le kgwedi. Tsibogo ya meroba e ne ya tlhomamisiwa ka dipalo tse di bonetsweng pele tsa sekao mme ga dirwa tshekatsheko e e tshwantshanyang ya tiragatso ya diphologolo ka nako ya go dusa go dirisiwa dipalo tsa Lekgotla la Bosetšhaba la Dipatlisiso (NRC, 2001). Malebana le ditlhokegopotlana tsa diotli, HD1 le HD2 di ne di na le boleng jo bo tshwantshanyegang jwa kotlo (RFV) jo bo kwa tlase ga 144. Poroteini e e tala (CP) ya dijo e e ka nnang 35% ya HD1 e ne e le mo karolwaneng ya tekanyetso ya faeba e e bolang ka iketlo (NDF) e leng poroteini e e tala ya faeba e e lekanyediwang (NDFICP), fa 32% di ne di seyo jaaka poroteini e tala e e sa monyelegeng ya esete (ADICP). Fela jalo, HD2 e na le 5.2% tsa CP e e dirang jaaka poroteini e e teng mme karolo ya NDF e e bolang ka iketlo e ntse fela 52.3% tsa poroteini e e dirang e e gona. Bogolo jwa maikatlapelo a HD1 le HD2 bo ne bo le kwa godimo ka 25% le 16% go na le jaaka go ne go solofetswe mo dipakeng tse di kgakala le tse di atamelang. Go jewa ga poroteini e e silegang (MP) go ne go le kwa godimo ka 32% le 25% go na le jaaka go ne go solofetswe mo dipakeng tse di kgakala le tse di atamelang. Tlamelo ya MP e ne e le 37%, e leng e e kgolwane go na le diponelopele tsa NRC tsa ditlhokego tsa letsatsi le letsatsi tsa dikgomo tsa Jeresi. Seno se letlile gore go nne le koketsego ya BW ya 29 kg le BCS ya 0.33 e leng se se neng se le mo diperesenteng tsa bo25 tsa meroba e e dusang. Go nna teng ga urea ya madi mo dipakeng tse dikgakala le tse di atamelang go ne go farologane ka 25% go tswa mo dipalong tsa NRC. Go nna teng ga kereitini (CR) e ne e le 145 μmol/L mo pakeng e e kgakala le 155 μmol/L mo pakeng e e atamelang. Thutopatlisiso ya bobedi e sekasekile ditlamorago tsa dijo tse pedi tsa tlhagiso ya mašwi mo tiragatsong ya tlhagiso ya mašwi ya dikgomo tsa Jeresi di le 42 tse e leng la ntlha di tsala tsa bogolo jwa dikgwedi tse di magareng ga 24 le 30 mo pakeng ya ntlha (malatsi a le 1-30 morago ga go tsala) le ya setlhoa (malatsi a le 31-60 morago ga go tsala). Dikgomo di amogetse 4,5 le 5 kg ya motswako wa teri mo dipakeng tsa mašwi tsa ntlha (malatsi a le 1-30 morago ga go tsala) le tsa setlhowa (malatsi a le 31-60 morago ga go tsala). Go ne go tlamelwa ka furu ya eragrostis curvula go ya ka tlhokego mme go ja dijo tse di omileng (DMI) go ne go lekanyediwa go 7.2 kg ya furu/ka kgomo/ka letsatsi go tswa mo furung e e neng e setse. Go ne go sa patelediwe kalafi epe ya phepo, kwa ntle fela ga dijo tse di rulagantsweng tse di tshwanetseng tikologo ya tlhagiso. Go ne ga baakanngwa dijo tsa tlhagiso ya mašwi tse di tlhagisitsweng gape (LD 1 le LD 2) di ikaegile ka go jewa ga tse di omileng (DMI) e leng furu ya tlhaga le metswako ya tlhagiso ya mašwi. Go nna teng ga dikotla ga dijo tseno go ne ga lekanyediwa go dirisiwa khemisitiri e e bongola le go bola mo mpeng ga in vitro. Go ne ga bonelwa pele tlamelo ya dikotla ya dijo, monyelo go tswa mo maleng a mannye mme go ne ga bonelwa pele tsibogo ya dikgomo go dirisiwa Thulaganyo ya Kotlo ya Diotli tse Dikgolo (LRNS) mofuta wa 1.0.33 (legato 1). Go ne ga elwa tlhoko boima jwa mmele le BCS, go ne ga tsewa madi mme a sekasekwa go bona diporoteini kgwedi le kgwedi. Go ne ga rekotiwa tlhagiso ya mašwi letsatsi le letsatsi mme mašwi a sekasekwa go bona mafura, poroteini, laketose le urea naeterojini beke le beke. Dikgomo di ne di na le DMI ya 11.2 kg, e e neng e le kwa godingwaga ka 12% go na le jaaka go ne go solofetswe mo pakeng ya malatsi a le 1-30 morago ga go tsala, le DMI ya 11.6 kg, e e neng e le kwa godingwana ka 12% go na le jaaka go ne go solofetswe mo dikgomong tse di nang le malatsi a le 31-60 di tsetse. Dijo di ne di na le poroteini e e gona e e kwa tlase jaaka peresente ya poroteini ya dijo (LD1=46% le LD2=45%) mme karolwana ya NDF e e bodileng ka bonya (NDFICP) e nnile 64% tsa poroteini e e gona. Go jewa ga maikatlapelo go ne go le kwa tlasenyana ka 20% le 17% go na le dipalo tse dineng di bonetswe pele mo dikgomong mo dipakeng tsa malatsi a le 1-30 morago ga go tsala le malatsi a le 31-60 morago ga go tsala. Go rekotilwe balanse ya maikatlapelo a a tlhaelang a dikgomo ya -6.5 le -5.6 Mcal mo malatsing a le 1-30 morago ga go tsala le 31-60 morago ga go tsala. Go jewa ga poroteini ke dikgomo tse di tlhagisang mašwi go ne go le kwa tlase, mme seo sa baka balanse e e tlhaelang ya poroteini ya 59% le 42% tsa ditlhokego tsa letsatsi le letsatsi tsa dikgomo mo pakeng ya malatsi a le 1-30 morago ga go tsala le malatsi a le 31-60 morago ga go tsala. Go rekotilwe tatlhegelo ya BW le BCS, tlhagiso e e kwa tlase ya mašwi, mašwi a a baakantsweng maikatlapelo (ECM: 9.50 kg/ka letsatsi) le bokgoni jwa furu (FE) jo bo kwa tlase ga 1 (LD1=0.85; LD2=0.89) mo dikgomong mo dipakeng tseo tsotlhe. Go nna teng ga mafura, poroteini le laketouse mo mašwing di amegile ka tsela e e sa siamang ka ntlha ya seelo se se kwa tlase sa poroteini e e kwa tlase. Tekanyetso ya disele tsa somatiki (SCC) mo mašwing e ne e le 121±13x10³/ml mme dikgomo ga di a bontsha matshwao ape a bolwetsi. Motswako wa urea naeterojini ya mašwi (MUN) e ne e le 12±2.7mg/dl, e leng se se bontshang seemo se se kwa tlase sa poroteini sa dikgomo tse di tlhagisang mašwi. Dikgomo tseno di ne di na le motswako wa kereitine wa 116 le 102 μmol/L mo dipakeng tsa malatsi a le 1-30 morago ga go tsala le malatsi a le 31-61 morago ga go tsala, mme seo se ka supa go fokotsega ga mesifa ka ntlha ya kgatelelo ya mogote e e bakwang ke tikologo e e mogote e go tlhagisiwang mo go yona. Dipholo di bontshitse gore dijo tsa dikgomo tsa teri mo dipolaseng tse dinnye tse di tlhakanetsweng mo dikgaolong tsa Sekhukhune le Vhembe kwa Porofenseng ya Limpopo di na le boleng jo bo kwa tlase jwa kotlo le gore dijo tse di nang le dikotla tse dinnye di amile titielo ya dijo, kgolo ya meroba, dirasefe tsa mmele le tlhagiso ya mašwi ka bonako mo dikgomong tsa teri tsa Jeresi. Kwa bokhutlong, dijo tsa dikgomo tsa teri tse di godisediwang mo dipolaseng tse dinnye di na le dikotla tse di kwa tlase mme ga di tshegetse kgolo e e mosola ya meroba le tlhagiso e e siameng ya mašwi mo nakong ya ntlha ya tlhagiso ya mašwi. Go tlhokega leano la dikotla go tokafatsa dijo tsa teri go tokafatsa tlhagiso le go tshela sebaka ga dikgomo le go tokafatsa go nnela leruri ga tlhagiso ya teri mo dipolaseng tse dinnye mo Aforika Borwa. / Agriculture and  Animal Health / Ph.D. (Agriculture)