The primary objective of this study was to examine the broader impact of institutional quality on enhancing foreign direct investment (FDI) and foreign portfolio investment (FPI) inflows in a sample of twelve emerging market economies for the period 2007 to 2017. We specifically sought to answer questions related to the key drivers of FDI and FPI inflows into emerging markets, with a particular emphasis on the role played by institutional quality factors. We further sought to interrogate the long-run and causal relationships between the key variables of FDI, FPI and institutional quality, in respect of the sample of emerging markets. The study employed the Principal Components Analysis (PCA) to construct a composite index for institutional quality composed of the six Worldwide Governance Indicators. Various other econometric models were applied, including the dynamic panel data generalised method of moments (GMM) model, the panel autoregressive distributed lag (ARDL) model for dynamic heterogeneous panels, and the panel vector error correction model (VECM). The results revealed that FDI in the selected emerging markets was, in the main, attracted by economic growth and institutional quality. Institutional quality, economic rowth and capital account openness were positive determinants of FPI inflows; however, stock market development stood out as the foremost determinant factor. In addition to finding long-run, cointegrating relationships between the key variables, it emerged that there was bi-directional causality between FDI and FPI, as well as between FDI and institutional quality in the long run. Despite the latter findings, the results further suggested that the long-run relationship between the two foreign capital inflows, i.e. FDI and FPI, was more of a substitutability or trade-off nature in our sample of emerging markets. In light of these findings, we recommended that it would be in the best interests of these emerging markets if the responsible policymakers continued to liberalise these economies. Further, it was shown that in order to attract inward international capital flows, financial liberalisation should be coupled with the strengthening of the domestic institutional environment.Strengthening institutions could curtail the persistence of institutional weaknesses and insulate emerging market economies from the adverse effects of volatile capital flows, and in the long-run enhance international capital inflows. / Inhloso enkulu yalolu cwaningo kwaye kuwukuhlola umthelela obanzi kwizinga leziko ekuqiniseni uhlelo lokutshalwa ngqo kwezimali ezweni langaphandle (foreign direct investment; FDI) kanye nemali engena mayelana nokuthengwa kwamagugu (shares, stocks and bonds) angenisa imali ezweni elingaphandle (foreign portfolio investment; FPI) kwizimakethe zamazwe eziyishumi nambili esikhathini esiphakathi kuka 2007 ukufika ku 2017. Empeleni besifuna ukuphendula imibuzo emayelana nezikhwezeleli ezisemqoka eziheha uhlelo lwe-FDI kanye ne-FPI ezimakethe ezifufusayo, ikakhulu kugxilwe kwindima edlalwa yizinto ezihlobene nezinga leziko. Siqhubekela phambili nokuphenya izinhlobo zobudlelwano besikhathi esinde kanye nobudlelwano obuyimbangela phakathi kwamavarebuli asemqoka e-FDI, i-FPI kanye nezinga leziko, mayelana nesampuli yezimakethe ezisafufusayo. Ucwaningo lusebenzise uhlelo lwe-Principal Components Analysis (PCA) ukwakha imvange yezinkomba ukwenzela izinga leziko eliqukethe izinkomba eziyisithupha ezibizwa phecelezi nge-Worldwide Governance Indicators. Amanye amamodeli alinganisa ezomnotho asetshenzisiwe, kuxutshwa phakathi idatha yamaphaneli eguquguqukayo ebizwa nge-dynamic panel data generalised method of moments (GMM) model, uhlelo lwe-panel autoregressive distributed lag (ARDL) model ukwenzela amaphaneli ahlukahlukene futhi aguquguqukayo, kanye nohlelo lwe-panel vector error correction model (VECM). Imiphumela iveze ukuthi i-FDI ezimakethe ezikhethiwe ezisafufusa, esikhathini esiningi, iye yahehwa ukuhluma komnotho kanye nezinga leziko. Izinga leziko, ukuhluma komnotho kanye nokuvuleka kwe-akhawunti yemali bekuyizinto eziyizinkomba ezinhle zokungena kwe-FPI; yize-kunjalo, ukuthuthukiswa kwemakethe yesitoko kuvele kwagqama ngaphezulu njengenkomba ekhombisayo. Ukwengeza phezu kolwazi olutholakele esikhathini esinde, ukuhlangana kobudlelwano obuphakathi kwamavarebuli asemqoka, kuye kwavela ukuthi kwakunezimbangela ezikhomba izindlela ezimbili zokungena kwezimali ezitshalwa ngaphandle, zona yilezi i-FDI kanye nezinga leziko esikhathini esinde. Naphezu kolwazi olutholakele kamuva, imiphumela iqhubeka nokuphakamisa ukuthi ubudlelwano besikhathi eside obuphakathi kwezinhlelo zokutshalwa kwezimali ezivela emazweni angaphandle, lezo zinhlelo yilezi, i-FDI kanye ne-FPI, bezingendlela ikakhulukazi yokushintshana/yokumisela noma yokushintshelana ngokuhweba kwisampuli yethu 5 yezimakethe ezisafufusayo. Mayelana nalolu lwazi olutholakele, sincome ukuthi kuzohambisana nokuthandwa yilezi zimakethe ezisafufusa uma ngabe abenzi bemigomo ababandakanyekayo baqhubeke nokususa izihibe zomnotho kula mazwe asafufusa. Ngaphezu kwalokho, kuye kwavezwa ukuthi ukuze kuhehwe izimali zamazwe angaphandle, uhlelo lokususwa kwezihibe zomnotho lufanele luhambisane nokuqiniswa kwesizinda esiyiziko lasekhaya. Ukuqiniswa kwamaziko kungaqeda isimo esintengayo seziko futhi kungasusa izimakethe zamazwe asafufusayo kwisimo esingagculisi sezimali ezingenayo, kanti esikhathini eside lokhu kungaqinisa ukutshalwa ukungena kwezimali ezivela emzaweni angaphandle / Maikemisetso magolo a thutopatlisiso eno e ne e le go tlhatlhoba ditlamorago ka bophara tsa boleng jwa ditheo mo go tokafatseng keleloteng ya dipeeletso tsa tlhamalalo tsa kwa dinageng tse dingwe (FDI) le dipeeletso tsa dipotefolio tsa kwa dinageng tse dingwe (FPI) mo sampoleng ya diikonomi tse somepedi tsa mebaraka e e tlhagelelang mo pakeng ya 2007 go fitlha 2017. Re ne re totile go araba dipotso tse di malebana le ditsamaisi tsa botlhokwa tsa keleloteng ya FDI le FPI mo mebarakeng e e tlhagelelang, go lebeletswe thata seabe sa dintlha tsa boleng jwa ditheo. Gape re ne re lebeletse go tlhotlhomisa go nna sebaka se se telele le sebako sa dikamano magareng ga dipharologantsho tsa botlhokwa tsa FDI, FPI le boleng jwa ditheo, malebana le sampole ya mebaraka e e tlhagelelang. Thutopatlisiso e dirisitse Tokololo ya Dintlha tsa Botlhokwa (PCA) go aga tshupane ya dikarolo ya boleng jwa ditheo e e nang le Disupi di le thataro tsa Lefatshe lotlhe tsa Bolaodi. Go dirisitswe gape dikao tse dingwe tse di farologaneng tsa ikonometiriki, go akarediwa sekao sa dynamic panel data generalised method of moments (GMM) sa data ya phanele e e farologaneng, sekao sa panel autoregressive distributed lag (ARDL) sa diphanele tse di farologaneng le sekao sa panel vector error correction (VECM). Dipholo di senotse gore FDI mo mebarakeng e e tlhophilweng e e tlhagelelang e ne tota e ngokiwa ke kgolo ya ikonomi le boleng jwa ditheo. Boleng jwa ditheo, kgolo ya ikonomi le go bulega ga akhaonto ya kapitale e nnile diswetsi tse di siameng tsa keleloteng ya FPI; fela tlhabololo ya mebaraka ya setoko e tlhageletse jaaka ntlha e e kwa pele e e swetsang. Go tlaleletsa mo go fitlheleleng botsalano jwa pakatelele le jo bo kopanang jwa dipharologantsho tsa botlhokwa, go tlhageletse gore go na le go sebako sa dintlhapedi magareng ga FDI le FPI gammogo le magareng ga FDI le boleng jwa ditheo mo pakeng e e telele. Le fa go ntse go na le diphitlhelelo tse di kailweng la bofelo, dipholo gape di tshitshinya gore botsalano jwa paka e e telele magareng ga keleloteng ya kapitale ya kwa ntle k.g.r. FDI le FPI ke jwa mofuta wa go emisetsa se sengwe ka se sengwe mo sampoleng ya rona ya mebaraka e e tlhagelelang. Ka ntlha ya diphitlhelelo tseno, re atlenegisa gore go tlaa bo go le mo dikgatlhegelong tsa mebaraka eno e e tlhagelelang gore ba ba rweleng maikarabelo a go dira dipholisi ba ka tswelela go repisa diikonomi tseno. Mo godimo ga moo, go bonagetse gore go ngokela kelelo e e tsenang ya kapitale ya boditšhabatšhaba, go repisiwa ga merero ya ditšhelete go tshwanetse ga tsamaisiwa le maatlafatso ya tikologo ya ditheo tsa 7 selegae. Go maatlafatsa ditheo go ka fedisa go tswelela pele ga makoa a ditheo le go sireletsa diikonomi tsa mebaraka e e tlhagelelang mo ditlamoragong tse di maswe tsa dikelelo tse di maswe tsa kapitale, mme kwa bokhutlong, go tokafadiwe kelelo ya kapitale ya boditšhabatšhaba / Finance, Risk Management and Banking / M. Com. (Financial Management)

The researcher investigated the management of multi-grade teaching for optimal learning in Gauteng West primary schools. Ten participants, including school principals, heads of departments and educators participated in individual and focus group interviews and in observation of multi-grade classroom contexts. Findings revealed that educators involved in multi-grade teaching feel overwhelmed by challenging work conditions pertaining to large learner numbers and a lack of adequate didactical resources. This is exacerbated by a lack of professional development by means of tailor-made training for multi-grade teaching and the presumption that educators teaching such classes must merely change the monograde teaching format of the curriculum themselves for applicable implementation in a multi-grade teaching context. This leaves educators socially, emotionally and professionally isolated. Recommendations include the involvement of seasoned educators with expert knowledge and experience of multi-grade teaching to present training sessions constituting advice and support to inexperienced educators involved in said teaching. / Die navorser het die bestuur van meergraadonderrig by laerskole in Wes-Gauteng vir optimale leer ondersoek. Afgesien van individuele en fokusgroeponderhoude met skoolhoofde, departementshoofde en opvoeders, is waarneming in meergraadklaskamers gedoen. Volgens die bevindings bemoeilik groot klasse en ʼn gebrek aan didaktiese hulpmiddels meergraadopvoeders se taak. Meergraadopvoeders voel hulle geensins opgewasse teen hierdie werksomstandighede nie. ʼn Gebrek aan opleiding in meergraadonderrig en die veronderstelling dat opvoeders die eengraadformaat van die kurrikulum in ʼn meergraadformaat kan omskakel, vererger sake. Opvoeders is van mening dat hulle maatskaplik, emosioneel en professioneel in die steek gelaat word. Daar word aanbeveel dat gesoute opvoeders met kennis van en ervaring in meergraadonderrig onervare opvoeders oplei en adviseer. / Monyakisisi o dirile dinyakisiso ka ga go ruta dikereiti tse fapanego go fihlelela bokgoni le tsebo tikologong ya go thekga dinyakwa tsa baithuti dikolong tsa phoraemari go la Gauteng Bodikela. Batseakarolo ba lesome, go akaretswa dihlogo tsa dikolo, dihlogo tsa dikgoro le barutisi ba tseere karolo ditherisanong ka botee le dihlopha tseo di nepisitswego gape le temogo dikemong tsa diphaposi tsa dikereiti tse di fapanego. Dikhwetso di utollotse gore barutisi bao ba rutago dikereiti tse fapanego ba imelwa ke maemo a modiro wo o nyakago gore ba ntshe bokgoni bja bona ka moka ka lebaka la dipalo tse ntsi tsa baithuti le tlhokego ya dithusi tsa thuto tse di lekanego. Se se thatafiswa ke tlhokego ya tlhabollo ya profesene ye ka go fa tlhahlo yeo e lebanego ya go ruta dikreiti tse fapanego le kgopolo ya go re barutisi bao ba rutago ba swanela go no fetola popego ya lenaneothuto la kereiti e tee ka bobona go re ba le dirise kemong ya go ruta dikereiti tse fapanego. Se se dira gore barutisi ba ikhwetse ba se na kgokagano le setshaba leagong, ba hloka bao ba ka llelago go bona le go se be le bao ba nago le kgahlego go profesene ya bona. Ditshisinyo di akaretsa go ba gona ga barutisi bao e lego kgale ba ruta ba nago le maitemogelo le botsebi go ruta dikereiti tse fapanego go hlagisa dipaka tsa tlhahlo tseo di fago maele le thuso go barutisi bao ba se nago maitemogelo. / Educational Management and Leadership / M. Ed. (Education Management)

Text in English with summaries in English, isiXhosa and Sesotho / Includes bibliographical references (leaves 141-153) / Provision of municipal services to urban residents particularly those residing in small towns across developing countries, is facing challenges. A small town or rural district of Luwingu in Zambia, is no exception. This study provides an analysis of factors that influence provision of municipal services in developing countries with Luwingu town or rural district in Zambia as the case study. Through this study, it has been shown that urban residents in small towns and to some extent, those residing in urban peripheries such as informal settlements, low-income residential neighbourhoods in major cities continues to experience poor provision and access to basic services such as drinking water, sanitation, refuse removal and electricity supply. Influencing effective provision of municipal services in the developing countries including Luwingu district council in Zambia, is a number of factors. Amongst others, is inadequate service infrastructure; lack of human and financial resources in various local municipalities particularly small rural local municipalities including Luwingu district council in Zambia. / Phano ya ditshebeletso ya masepala ho baahi ba diteropo haholo ba dulang diteropong tse nyane ho pharalla le dinaha tse ntseng di tswelapele, e lebane le mathata. Torotswana e nyane kapa setereke sa mahaeng sa Luwingu ho la Zambia, le yona e ya tshwana. Phuputso ena e fana ka manollo ya dintlha tse amang phano ya ditshebeletso tsa masepala dinaheng tse ntseng di tswelapele e sebedisa teropo kapa setereke sa mahaeng sa Luwingu jwalo ka mohlala wa phuputso. Ka phuputso ena, ho bontshitswe hore baahi ba diteropong ba leng diteropong tse nyane le ka tsela e itseng, ba dulang mabopong a diteropo jwalo ka diahelo tse sa hlophiswang, metse ya batho ba kgolang tjhelete e nyane diteropokgolong tse kgolo, ba tswelapele ho fumana phano e fokolang le phihlello ho ditshebeletso tsa motheo tse jwalo ka metsi a nowang, tlheko ya dikgwerekgwere, tlhwekiso ya dithole le phepelo ya motlakase. Ke dintlha tse mmalwa tse amang phano e ntle ya ditshebeletso tsa masepala dinaheng tse ntseng di tswelapele ho kenyelletswa khansele ya setereke ya Luwingu e Zambia. Hara tse ding ke boteng bo fokolang ba disebediswa tsa ditshebeletso; tlhokeho ya ditjhelete le basebetsi dimasepaleng tse fapaneng tsa lehae tse kenyelletsang khansele ya setereke ya Luwingu e Zambia. / Ukunikezelwa kweenkonzo zikamasipala kujongene nemingeni kubahlali basezidolophini, ngakumbi abo bahlala kwiidolophu ezincinci kumazwe asaphuhlayo. Le nto iyenzeka nakwidolophana encinci okanye isithili sasemaphandleni aseLuwingu eZambia. Esi sifundo sihlalutya izinto ezinefuthe kunikezelo lweenkonzo zikamasipala kumazwe asaphuhlayo, kwaye sizekelisa ngedolophana okanye iphandle laseLuwingu eZambia. Ngokwenza esi sifundo, kubonakele ukuba abahlali beedolophana ezincinci kunye nabo bahlala kufuphi nazo, njengabo bahlala kwiindawo ezingekho sesikweni nabahlala kwiindawo zabantu abanemivuzo ephantsi kwizixeko ezikhulu, bafumana iinkonzo ezikumgangatho osezantsi. Ezo nkonzo zifana namanzi okusela, ukugcina ucoceko, ukuthuthwa kwenkunkuma nokunikezelwa kombane. Ziliqela iimeko ezinefuthe ekunikezelweni kweenkonzo zikamasipala ezisemgangathweni kumazwe asaphuhlayo njengeZambia, kwisithili saseLuwingu. Phakathi kwezo meko singabalula ukungafakwa ngokwaneleyo kwezilungiselelo nezibonelelo zeenkonzo, (infrastructure); ukunqongophala kwemali nabantu abaqeqeshelwe umsebenzi koomasipala bendawo abahlukeneyo, ngakumbi abeendawo ezincinci, kuquka nekhansile yesithili saseLuwingu eZambia. / Development Studies / M.A. (Development studies)

The importance of philosophy and the philosophical is not on the lips of many library and information science practitioners and scholars, even though pervasive in information science theory and practice. This investigation focusses on the relationship between information science, philosophy and the philosophical thinking attitude revealed through theoretical and practical concerns. This includes theory generation arising from the philosophical in exploring the role of philosophy and the philosophical. It takes into account perceived problems in recognising, accepting and rejecting the role of philosophical approaches and the impact in determining the nature and the theoretical and practical aspects of information science. The problem posed by not recognising philosophical approaches, is that the benefits of philosophical thought cannot be drawn on to understand how knowledge, information and its communication manifest through language and language expression. Three pathways are used in order to reveal philosophy and the philosophical in information science, the connection between information retrieval and language, and philosophical thinking attitudes at theoretical and practical levels. The value of the study lies in contributing towards knowledge and awareness of the effect of philosophical theories on problems seen as central research areas in information science and its domains. The methodological approach gives preference to the comparative and pluralistic epistemology of a journey. The study examines Peter Ingwersen’s cognitive perspective and information retrieval interaction, David Blair’s treatment of information retrieval with natural language as primary concern, and Fanie de Beer’s contribution on the inventive act of reading and knowledge organisation, as representative figures. It is argued that information science cannot avoid philosophy in its different manifestations. By understanding how philosophy manifests in information science, such as the role of philosophy revealed through language and information retrieval, an opportunity is offered to reconsider the discipline’s interdisciplinary nature in the existing scholarly and societal environment, and the contribution of its historical development to the assumptions and philosophies underlying the discipline. A further empirical study on how philosophy and the philosophical are embedded in information science research is recommended. It could investigate the influence of philosophy on decisions made by South African universities to redesign information science research and study programmes. / Biblioteek- en inligtingkundige praktisyns praat nie dikwels oor die belangrikheid van filosofie en die filosofiese nie, hoewel dit algemeen in die teorie en praktyk van inligtingkunde voorkom. Hierdie ondersoek fokus op die verband tussen inligtingkunde, filosofie en die filosofiese denkhouding wat deur teoretiese en praktiese aspekte blootgelê word. Dit sluit die skepping in van teorieë wat uit die filosofiese voortspruit met die ondersoek na die rol van filosofie en die filosofiese. Dit neem kennis van vermeende probleme met herkenning, aanvaarding en verwerping van die rol van filosofiese benaderings en die impak op bepaling van die aard en die teoretiese en praktiese aspekte van inligtingkunde. Die probleem wat veroorsaak word deur nie die filosofiese benaderings te erken nie, is dat die voordele van filosofiese denke nie gebruik kan word om te verstaan hoe kennis, inligting en die kommunikasie daarvan in taal- en taaluitdrukking manifesteer nie. Drie weë word gevolg om die filosofie en die filosofiese in inligtingkunde, die verband tussen inligtingontsluiting en taal, en filosofiese denkhouding op teoretiese en praktiese vlak aan te toon. Die waarde van die studie lê daarin dat dit bydra tot kennis en bewustheid van die uitwerking van filosofiese teorieë op probleme wat as sentrale navorsingsgebiede in inligtingkunde en sy domeine beskou word. Die metodologiese benadering gee voorkeur aan die vergelykende en pluralistiese epistemologie van 'n reis. Die studie ondersoek Peter Ingwersen se kognitiewe perspektief en interaksie met inligtingontsluiting, David Blair se hantering van inligtingontsluiting met natuurlike taal as primêre belang, en Fanie de Beer se bydrae oor die vindingryke handeling van lees- en kennisorganisasie, as verteenwoordigende figure. Daar word aangevoer dat inligtingkunde nie filosofie in sy verskillende manifestasies kan vermy nie. Deur te verstaan hoe filosofie in inligtingkunde manifesteer, soos die rol van filosofie wat deur taal- en inligtingontsluiting openbaar word, word die geleentheid gebied om die dissipline se interdissiplinêre aard in die bestaande wetenskaplike en samelewingsomgewing en die bydrae van die historiese ontwikkeling daarvan tot die aannames en filosofieë onderliggend aan die dissipline te heroorweeg. 'n Verdere empiriese studie oor hoe filosofie en die filosofiese in inligtingkundige navorsing vervat is, word aanbeveel. Dit kan die invloed van filosofie op besluite wat Suid-Afrikaanse universiteite neem om navorsings- en studieprogramme vir inligtingkunde te herontwerp, ondersoek. / Bohlokwa bja filosofi le bja tiriso ya filosofi bo bolelwa kudu ke basomi ba bantsi ba dithutamahlale tsa bokgobapuku le tshedimoso le dirutegi, le ge e le gore di tletse kudu ka go teori le tiriso ya dithutamahlale tsa tshedimoso. Dinyakisiso tse di nepisitse go kamano magareng ga dithutamahlale tsa tshedimoso, filosofi le maikutlo a go nagana ka filosofi ao a utollotswego ka dipelaelo mabapi le teori le tiriso. Se se akaretsa moloko wo o dirisago teori e lego seo se bakilwego ke tiriso ya filosofi go utolla mosomo wa filosofi le wa tiriso ya filosofi. Di hlokometse kudu mathata ao a bonwago ka go lekodisisa, go amogela le go gana mosomo wa mekgwa ya filosofi le seabe sa go tseba mokgwa le dilo tsa teori le tsa tiriso ya dithutamahlale tsa tshedimoso. Bothata bjo bo laeditswego bja go se lemoge mekgwa ya filosofi, ke gore mehola ya kgopolo ya filosofi e ka se diriswe gore re kwesise ka fao tsebo, tshedimoso le poledisano ka ga yona di ka phethagatswago ka polelo le tlhagiso ya polelo. Ditsela tse tharo di a diriswa ka nepo ya go utolla filosofi le tiriso ya filosofi ka go dithutamahlale tsa tshedimoso, kamano magareng ga go hwetsa tshedimoso le polelo, le mekgwa ya go nagana ka filosofi maemong a teori le a tiriso. Boleng bja dinyakisiso tse ke go ba le seabe go tsebo le go temoso ka ga seabe sa diteori tsa filosofi go mathata ao a bonwego bjalo ka dinyakisiso tse bohlokwa ka go dithutamahlale tsa tshedimoso le go makala a tsona. Tsela ye ya go dirisa mekgwa e rata kudu mokgwa wa papetso le wa go tseba dilo ka tsela ye e fapafapanego mo leetong. Dinyakisiso tse di lekodisisa mokgwa wa kwesiso le kamano ya go hwetsa tshedimoso tsa Peter Ingwersen, kwesiso ya David Blair ya go hwetsa tshedimoso le polelo ya tlhago bjalo ka selo seo se tlisago tlhobaelo ya mathomo, le seabe sa Fanie de Beer ka ga tiro ya boitlhamelo ya go bala le go beakanya tsebo, bjalo ka dilo tseo di tlisago kemelo. Go bolelwa gore dithutamahlale tsa tshedimoso di ka se kgone go efoga filosofi ka tirisong ya tsona ye e fapafapanego. Ka go kwesisa ka fao filosofi e diriswago ka gona ka go dithutamahlale tsa tshedimoso, go swana le ge mosomo wa filosofi o utollotswe ka polelo le ka go utolla tshedimoso, sebaka se a fiwa go lebeledisisa leswa seemo sa thuto ye sa kamano le dithuto tse dingwe ka seemong sa bjale sa dirutegi le ka setshabeng, le seabe sa tlhabollo ya yona mo nakong ye e fetilego go ditshisinyo le go difilosofi tseo di thekgago thuto ye. Dinyakisiso tse dingwe tseo di theilwego go boitemogelo ka ga ka fao filosofi le tiriso ya filosofi di tsentswego ka go dithutamahlale tsa tshedimoso di a sisinywa. Di ka nyakisisa khuetso ya filosofi go diphetho tseo di dirilwego ke diyunibesithi tsa Afrika Borwa go hlama leswa dinyakisiso tsa dithutamahlale tsa tshedimoso le go mananeo a dithuto. / Information Science / Ph. D. (Information Science)

I am fascinated by the inner thoughts, the memories, and the cumulative experience that make us each a complex physiological puzzle. From birth, sociological building blocks are constructed forming emotional walls and unexpected doorways, boundaries and comfortable passageways through the architecture of our personalities. My thesis work, which is comprised of ceramic figures and interactive toys, offers playful memory triggers and evocative spaces in which viewers can deconstruct the building blocks of their social persona.

Volvo Cars in Skövde manufacture and assemble Volvo engines. When attaching the ignition coil to all 4-cylinder engines, a special mounting tool is required. This mounting tool is currently manufactured from injection-molded polyoxymethylene (POM), a thermoplastic. It has been noted that the life span of the tool is shortened as a result of abrasive wear that occurs during the attachment process of the ignition coil. An investigation of the possibility of manufacturing the mounting tool with a 3D-printer is undertaken in cooperation with ÅF, a consultant to Volvo Cars. A literature study is first presented to introduce broader knowledge on the subject. The abrasive wear and other material characteristics such as tensile strength, compressive strength and elongation of  POM and an alternative material for 3D-printing,  Ultem™, an amorphous thermoplastic polyetherimide are discussed.  These material characteristics are studied further and considered in tandem with both a theoretical analysis and a wear experiment, based on the pin-on-disc method. It is shown in the theoretical analysis that the wear is approximately six times larger for Ultem™ when compared to POM. The wear resistance of Ultem™ is highest when wear occurs parallel to the direction of the printed layers. In contrast, the experiment shows that the wear is about three times larger in Ultem™ than in POM.  The highest tensile strength of Ultem™ is also found in the direction of the printed layers. Some issues with the small elongation of the 3D-printed material are presented. It is recommended that ÅF apply the 3D-printing technique with Ultem™ only for construction details with complex geometries and where the material elongation will not exceed 5%. It is also recommended that ÅF both support and contribute to this innovative technique in order to develop leading edge competence in the subject. / Volvo Cars i Skövde tillverkar och monterar Volvomotorer. Vid monteringen av tändspolen till alla 4-cylindriga motorer behövs ett monteringsverktyg. Detta monteringsverktyg tillverkas för närvarande från formsprutad termoplast polyoximetylen (POM). Det har noterats att livslängden av verktyget förkortas på grund av abrasiv nötning som uppkommer under monteringsprocessen av tändspolen. Möjligheterna att tillverka monteringsverktyget med en 3D-skrivare utvärderas i samverkan med ÅF, en konsult till Volvo Cars. En litteraturstudie presenteras för att introducera en bredare kunskap i ämnet. Den abrasiva nötningen och materialegenskaper såsom draghållfasthet, tryckhållfasthet samt töjning hos POM och ett alternativt material för 3D-skrivning, Ultem™, en amorf termoplast polyeterimid, behandlas. Dessa materialegenskaper studeras vidare och tas i beaktning med både en teoretisk analys och ett nötningsexperiment, baserat på pin-on-disc metoden. Enligt den teoretiska analysen är nötningen hos Ultem™ approximativt 6 gånger större vid jämförelsen med POM. Nötningsbeständigheten hos Ultem™ är högst då nötning sker parallellt med 3D-skrivningsriktningen av lagren. Nötningsexperimenten visar att nötningen hos Ultem™ är ungefär 3 gånger större vid jämförelsen med POM. Den högsta draghållfastheten hos Ultem™ uppkommer också parallellt med 3D-skrivningsriktningen av lagren. Problem med den låga töjningen hos det 3D-skrivna materialet behandlas. ÅF rekommenderas att tillämpa 3D-skrivning med materialet Ultem™ främst för detaljer med komplexa geometrier med en töjning som inte överskrider 5 %. ÅF rekommenderas även att både stödja och bidra till denna innovativa teknik för att kunna skapa en ledande expertis i ämnet.

Studies have shown elementary teachers may not be well prepared to use technology in their classrooms. This study examines one elementary teacher’s feelings of technology self-efficacy (TSE), needs and pedagogical strategies when using the interactive whiteboard (IWB) to teach elementary science. It employed a single case study design, where the researcher and participant worked together during supportive professional development (PD) sessions. Data sources are twelve PD sessions, the Computer Technology Integration Survey (adapted for IWB use in the classroom), and two interviews, three in-class observations of IWB science lessons, and three lesson debriefs. Descriptive and thematic analysis show the participant’s TSE was positively influenced by the PD. Five factors were determined to influence TSE: the participant’s level of interest, attitude, experience with technology, student assistance, and familiarity with the setting. Teacher, contextual and IWB- level needs were explained. Pedagogical strategies for technology use based on interactive IWB features are also discussed. Findings could contribute to current trends in teacher PD, continuing education, and preservice teaching programs related to science teaching. / Plusieurs enseignants ne sont pas bien préparés pour utiliser la technologie en classe. En particulier, le tableau blanc interactif (TBI) n’est pas utilisé de façon optimale par les enseignants lorsqu’ils enseignent les sciences et la technologie à l’élémentaire. Cette thèse présente l’étude de cas unique d’une enseignante de l’élémentaire ayant cheminé dans un processus de développement professionnel (DP) pour l’aider à intégrer le TBI en sciences et technologie. Douze sessions de DP, un questionnaire sur l’efficacité avec le TBI (CTIS adapté), deux entrevues, trois sessions d’observation en classe et trois discussions sur les leçons constituent les sources de données. La participante est devenue plus confiante pour utiliser le TBI suite au DP. Elle a rehaussé son sentiment d’autoefficacité et accru son intérêt et sa connaissance du TBI. Elle a acquis des compétences techniques et une connaissance des contenus d’enseignement adaptés au TBI, bien que plusieurs besoins perdurent. Certaines stratégies pédagogiques avec le TBI expérimentées en classe par l’enseignante sont discutées. Cette thèse peut contribuer à fournir des pistes pour aider les enseignants au primaire à mieux intégrer le TBI en sciences et technologie, que ce soit lors de leur formation initiale à l’enseignement ou en cours d’emploi.

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)

This study aims to determine the main drivers of financial market development, with a specific interest in the relationship between the stock and bank credit markets, as proxies of financial market development, and the role of institutional quality, in ten African countries for the period of 2009 to 2017. A number of econometric techniques such as the General Methods of Moments (GMM) model for dynamic panel data, autoregressive distribution lag (ARDL) bound testing approach to cointegration, vector error correction model (VECM), and granger causality tests were applied in the study. We further developed a composite index for both financial market development and institutional quality using Principal Components Analysis (PCA). The results demonstrate that institutional quality, as well as infrastructure development, economic growth, and inflation are the main determinants of financial market development in our sample of ten African countries. Findings from the ARDL bound testing approach confirm the existence of a long-run association between institutional quality and financial market development. Although financial market development has no effect on economic growth, institutional quality was found to have a positive and highly significant effect on economic growth. Furthermore, employing the Granger causality test, we found uni-directional granger causality between financial market development and institutional quality, implying that financial market development is a significant causal factor for institutional quality. In consideration of these findings, policy formulation by governments should be designed towards enhancing financial and institutional quality development, and this can be possibly achieved by effective enforcement of law to encourage compliance, while simultaneously eliminating corruption and other institutional hindrances to development / Lolu cwaningo luhlose ukuveza izinhlaka ezingabaphembeleli abasemqoka ekuthuthukisweni kwezimakethe zezimali, kugxilwe kakhulu kubudlelwano obuphakathi kwesitoko kanye nezimakethe zamabhangi ahlinzekana ngezikweletu, njengabancedisi abathuthukisa izimakethe zezimali, kanye nendima emayelana nezinga leziko, emazweni ase-Afrika ayishumi esikhathini esiphakathi kuka 2009 ukufikela ku 2017. Inani lezindlela zokulinganisa izinga lomnotho ezinjenge-General Methods of Moments (GMM) model yedatha yephaneli eguquguqukayo, i-autoregressive distribution lag (ARDL) bound testing approach to cointegration, i-vector error correction model (VECM), Kanye negranger causality tests zisetshenzisiwe kucwaningo. Siqhubekele phambili nokwakha inkomba ehlangene yazo zombili izinhlaka; ukuthuthukiswa kwezimakethe zezimali Kanye nezinga leziko ngokusebenzisa uhlelo lwe-Principal Components Analysis (PCA). Imiphumela ikhombisile ukuthi izinga leziko, Kanye nokuthuthukiswa kwengqalasizinda, ukuhluma komnotho, Kanye nezinga lamandla email yizinkomba ezisemqoka zokuthuthukiswa kwezimakethe zezimali kusampuli yethu elula yamazwe ase-Afrika ayishumi. Ulwazi olutholakele ku-ARDL bound testing approach luqinisekisa ubukhona kobudlelwano besikhathi eside obuphakathi kwezinga leziko kanye nokuthuthukiswa kwezimakethe zezimali. Yize ukuthuthukiswa kwemakethe yezimali kungenawo umthelela kwezokuhluma komnotho, izinga leziko lona liye latholakala ukuthi linomthelela omuhle nosemqoka kakhulu ekukhuleni komnotho. Ngaphezu kwalokho, uma sisebenzisa uhlelo lweGranger causality test, sifumene i-uni-directional granger causality phakathi kwemakethe yezimali Kanye nezinga leziko, lokhu kuchaza ukuthi ukuthuthukiswa kwezimakethe zezimali kuyimbangela esemqoka yezinga leziko. Uma kubhekwa lolu lwazi olutholakele, imigomo eyakhwa uhulumeni kufanele yakhiwe ngenhloso yokuqinisa ukuthuthukiswa kwezinga lezimali Kanye nezinga leziko, kanti lokhu kungafinyelelwa ngokuqinisa kahle umthetho ukukhuthaza ukulandelwa komthetho, kanti ngakolunye uhlangothi kuncishiswe izinga lenkohlakalo Kanye nezinye izihibhe eziphazamiso ukuthuthukiswa kweziko. / Maikaelelo a thutopatlisiso ke go swetsa ka ditsamaisi tse dikgolo tsa tlhabololo ya mebaraka ya ditšhelete, ka kgatlhego e rileng mo kamanong magareng ga mebaraka ya setoko le ya sekoloto sa dibanka, jaaka kemedi ya tlhabololo ya mebaraka ya ditšhelete, le seabe sa boleng jwa ditheo, mo dinageng di le lesome tsa Aforika mo pakeng ya 2009 go ya go 2017. Go dirisitswe dithekeniki di le mmalwa tsa ikonometiriki di tshwana le sekao sa General Methods of Moments (GMM) sa data ya phanele e anameng, molebo wa tekeletso e kopanyang ya autoregressive distribution lag (ARDL), sekao sa vector error correction (VECM) le diteko tsa sesusumetsi tsa Granger. Gape re tlhamile tshupane ya dikarolo ya tlhabololo ya mmaraka wa ditšhelete le boleng jwa ditheo re dirisa Tokololo ya Dikarolo tse Dikgolo (Principal Components Analysis (PCA)). Dipholo di bontsha gore boleng jwa ditheo, gammogo le tlhabololo ya mafaratlhatlha, kgolo ya ikonomi le infoleišene ke diswetsi tsa tlhabololo ya mebaraka ya ditšhelete mo sampoleng ya rona ya dinaga di le lesome tsa Aforika. Diphitlhelelo go tswa mo molebong wa teko e kopanyang ya ARDL di tlhomamisa go nna teng ga kamano ya paka e telele magareng ga boleng jwa ditheo le tlhabololo ya mebaraka ya ditšhelete. Le fa tlhabololo ya mebaraka ya ditšhelete e sa ame kgolo ya ikonomi ka gope, boleng jwa ditheo bo fitlhetswe bo na le ditlamorago tse di siameng e bile di le botlhokwa mo kgolong ya ikonomi. Mo godimo ga moo, ka go dirisa teko ya Granger ya sesusumetsi, re fitlhetse go na le sesusumetsi sa ntlha e le nngwe sa Granger magareng ga lhabololo ya mebaraka ya ditšhelete le boleng jwa ditheo, mo go rayang gore tlhabololo ya mebaraka ya ditšhelete ke ntlha e e botlhokwa ya sesusumetsi sa boleng jwa ditheo. Fa go lebelelwa diphitlhelelo tseno, go dirwa ga dipholisi ke dipuso go tshwanetse ga dirwa gore go tokafatse tlhabololo ya boleng jwa ditšhelete le ditheo, mme seno se ka fitlhelelwa ka tiragatso e e bokgoni ya molao go rotloetsa kobamelo mme go ntse go fedisiwa bobodu le dikgoreletsi tse dingwe tsa tlhabololo mo ditheong. / Business Management / M. Com. (Business Management (Finance))

The research examines the management of performance appraisal at institutions of higher learning: a case of the University of South Africa (Unisa). Focus is placed on the Unisa, specifically the two administrative departments, DSAR and PGAD in the centre of providing a service to the most important client, the student. The Integrated Performance Management System (IPMS) Policy is a tailor-made system that provides a systematic process for managing the cycle of events associated with ensuring that individual employees achieve their agreed performance outcomes and the university reaches its strategic goals. To enhance and contribute to the effective management of performance, at Unisa, it is necessary to research the performance appraisal system, a process in place to measure the performance of employees, using a performance rating or score to indicate the level of performance. Performance measurement is utilised by organisations to identify the strengths and developmental areas of employee and relations between the employee and the manager a need to facilitate successful operations. Provide feedback to the employees and management respectively, show flaws identified, suggested improvements to the system. To ensure achievement of performance targets and meet the set objectives of the institution, to the benefit of all stakeholders, i.e. the employer, employee and student alike. / Patlisiso e lekola botsamaisi jwa tshekatsheko ya tiragatso kwa ditheong tsa thuto e kgolwane: kgetsi ya Yunibesithi ya Aforikaborwa (Unisa). E totile mafapha a le mabedi a tsamaiso, DSAR le PGAD, a iphitlhelang a le mo bogareng jwa go tlamela tirelo go modirelwa yo o botlhokwa go gaisa, moithuti. Pholisi ya IPMS ke thulaganyo e e diretsweng lebaka le le rileng e e tlamelang ka tirego e e rulaganeng ya go tsamaisa sediko sa ditiragalo tse di amanang le go netefatsa gore badiri ba ba farologaneng ba fitlhelela dipoelo tse go dumelanweng ka tsona tsa tiragatso ya bona, mme yunibesithi e fitlhelela maikaelelo a yona a togamaano. Ka jalo, go tokafatsa le go tshwaela mo bokgoning jwa Unisa, go ne go le botlhokwa go batlisisa thulaganyo ya yona ya tshekatsheko ya tiragatso, gonne go tlhokega thulaganyo e e fetotsweng ya tshekatsheko ya tiragatso go tsweletsa tiragatso e e nonofileng le botsamaisi jo bo bokgoni. Tekanyetso ya tiragatso e dirisiwa ke ditheo jaaka sediriswa se ka sona go ka sekasekwang dikarolo tsa maatla le tse di tlhokang kgodiso tsa badiri, mme go maatlafadiwe kamano magareng ga modiri le motsamaisi. Dipholo tsa patlisiso eno di tlaa dirisediwa go tlamela badiri le botsamaisi ka pego le go bontsha moo go tlhokegang tokafatso ya thulaganyo e e dirisiwang mo tirong le mabaka a seo. Maikemisetso magolo a tshekatsheko ya tiragatso ke go netefatsa gore go fitlhelelwa diphitlhelelo tse di beilweng tsa tiragatso le maitlhomo a setheo, go ungwela baamegi, e leng, mothapi, modiri le baithuti ka go tshwana. / Public Administration and Management / M. Admin. (Public Administration)