This master thesis deals with extension of the univariate GARCH model to multivari- ate models. We present individual models and deal with methods of their estimation. Then we describe some statistical tests for diagnosting the models. We have programmed in the statistical software R one of them - the Ling-Li test. Afterwards we apply selected models to real data of stock market index S&P 500, stock market index Russell 2000 and stocks of crude oil. For the GO-GARCH model, we compare all available estimation methods and show their differences. Then we compare the results of all models with each other and also with univariate models in terms of estimates of conditional variances, estimates of conditional correlations and also in terms of computational complexity. 1

The default mode network (DMN) is a highly cited neural network whose functional roles are not well understood. Until recently, event related fMRI experiments used to study the DMN could only be conducted in an open-loop format. The purpose of this study was to demonstrate the potential statistical advantages of real-time fMRI studies to conduct closed-loop experiments to directly test putative DMN functions. Using both fMRI simulations and large archival datasets, we demonstrate that open-loop designs are less statistically powerful than closed-loop experiments that can trigger stimuli at controlled levels of brain activity. When simulating event scheduling on resting state data, DMN levels were normally distributed, but the event timing proved to be ineffective in capturing the highest and lowest DMN values on average across subjects. Statistical differences in DMN levels collected by the Human Connectome Project-Aging (HCP-A) during a Go/NoGo task were also reported, along with the network's distributional effects across subjects. When examining DMN levels in 136 subjects more prone to commission errors the mean DMN levels were reported to be higher during and prior to incorrect NoGo responses. Exploring DMN levels in these same individuals reacting to a Go task also revealed differing measurement patterns when compared to all 711 subjects in the study. Additionally, the distribution of total DMN levels across all participants, as well as during a Go or NoGo trial, showed a shift in the mean towards deactivation. Furthermore, the peak at this location was greater and revealed that increased sampling occurred at the mean and under sampling at the tails. Overall, the cumulative findings in this study were successful in providing statistical arguments to support propositions for more powerful closed-loop experimentation in fMRI. / Master of Science / Activity in a neural network is observed through the use of functional MRI (fMRI) by tracking higher levels of oxygenated blood to that region when active and lower quantities when inactive. Neural networks vary in their responsibilities, thus fMRI tasks are designed to trigger a response based on the functional role of the network. This can be exemplified by studying the blood flow to default mode network (DMN), a network responsible for mind wandering, during a task that requires focus. Researchers can then correlate moments of high activity, which indicates a greater degree of mind wandering, or low activity to a correct or incorrect response to the task. Unfortunately, the timing in which a task is presented to the participant is predetermined prior to the subject entering the MRI making it difficult to capture a correct or incorrect response at the precise moment of activation or deactivation. This concept is known as open-loop and often collects data at moments of neutral activity, neither high nor low. In contrast, a closed-loop design allows a researcher to monitor the DMN's activation levels in real time and present the task at a desired time. This provides more useful data to the experimenter as all recorded responses to the task correlate with exact moments of high and low activation. This makes claims about the neural network's role statistically more powerful as there is a greater quantity of data at these moments rather than during a neutral activation state. The purpose of this thesis is to provide statistical arguments that support propositions for more powerful closed-loop experimentation in fMRI.

Att utveckla applikationer med mikrotjänstarkitektur har idag blivit ett trendande tillvägagångssätt för att skapa tjänster som är anpassade för att köras i molnet med fördelar som mindre underhållsarbete och lättare skalbarhet. Mikrotjänster kännetecknas som löstkopplade och oberoende tjänster som kommunicerar genom att exponera ett API. För många populära programmeringsspråk, som till exempel Java, finns det flera ramverk att använda för att underlätta utvecklandet av mikrotjänster. Företaget Redpill Linpro i Karlstad, som är uppdragsgivare för den här studien, använder sig idag av Javaramverket Quarkus vid utvecklandet av mikrotjänster. De är dock intresserade av att veta hur mikrotjänster som utvecklats i Quarkus jämför sig prestandamässigt mot mikrotjänster som utvecklats i ett annat programmeringsspråk. Redpill Linpro har märkt att intresset för programmeringsspråket Go har ökat på sistone. I Gos officiella dokumentation rekommenderas ramverket Gin för att få bättre prestanda när det kommer till att utveckla tjänster som exponerar ett API. Redpill Linpro har tilldelat författaren av denna uppsats ett uppdrag att utveckla mikrotjänster med hjälp av ramverken Quarkus och Gin för att studera skillnader i prestanda samt beskriva tillvägagångssättet för hur utvecklingen av mikrotjänsterna gått till. Studien syfte är att identifiera vilken av mikrotjänsterna utvecklade i Gin eller Quarkus som presterar snabbast beträffande kompileringstid och uppstartstid, skillnader i filstorlek och skillnader i responstid vid HTTP-anropen GET och POST med och utan koppling till databas. Även vilken mikrotjänst som använder minst CPU-kraft och RAM-minne. Studiens resultat visar för- och nackdelar med båda ramverken men att mikrotjänsterna skapade med Gin presterade bäst i flest antalet parametrar som mättes i den här studien.

No description available.

No description available.

Made available in DSpace on 2014-07-29T14:44:42Z (GMT). No. of bitstreams: 1 Dissertacao Juniele Martins Silva.pdf: 4679279 bytes, checksum: 202260116f1a5398f626813de7c528fc (MD5) Previous issue date: 2011-08-26 / The studies on familiar agriculture in Brazil had greater approach from the decade of 1990. The emergency of the expression must it two spheres: a) in the field the conditional politician to them you strike of the social movements and the creation of the PRONAF; e b) for intermediary of some academic works. Familiar agriculture is understood as segment where the property and the work are on to the family, and, these possess proper cultural aspects crossed of generation the generation, forming its territorial identities. Thus, the familiar agriculturists possess, still, a territorial identity cultivated by subjective the objective and incorporeal bases material constituted, from the relations established with the territory and the culture through the values, traditions, beliefs and customs. From 1970 with the modernization of agriculture the difficulties of this group if had aggravated how much the conditions of insertion in the market, access the public politics among others, process that occurred in all domestic territory. In this direction, it is considered to understand the main quarrels on familiar agriculture and territory, being detached the sociocultural, economic and organizacional behavior of the communities Cruzeiro dos Martírios and Paulistas in the city of Catalão, State of Goiás. For the accomplishment the theoretical research on the thematic one was made. The empirical research was carried through in the communities: a) the community Cruzeiro dos Martírios, being applied a total of 15 scripts of interview with the agricultural producers, what it represented a sample of 20,27%; b) community Paulistas, being applied 11 scripts of interview with the producers, what it represented a sample of 32,35%. One became, still, comments in the carried through sociocultural events in the communities (terços, religious parties). It was verified, that the identity of the familiar agriculturists of the communities Cruzeiro dos Martírios and Paulistas is constituted from the material and incorporeal bases, being in dynamics, that is, in a process of historical construction. In both the communities the aging of the population caused for the migration of young for the city in search of study and the job and, also, for the fall in the fecundidade tax was observed. In these communities it is noticed masculinização of the population due the selective migration, that is, greater exit of young of the feminine sex. These factors can compromise the hereditary succession of the properties. The agriculturists launch hand of some strategies to multiply as the productive diversity. / Os estudos sobre agricultura familiar no Brasil tiveram maior enfoque a partir da década de 1990. A emergência da expressão deve-se a duas esferas: a) no campo político condicionado aos embates dos movimentos sociais e a criação do PRONAF; e b) por intermédio de alguns trabalhos acadêmicos. A agricultura familiar é entendida como segmento em que a propriedade e o trabalho estão ligados à família, e, esses possuem aspectos culturais próprios atravessados de geração a geração, formando suas identidades territoriais. Assim, os agricultores familiares possuem, ainda, uma identidade territorial cultivada pelas bases materiais/objetivas e imateriais/subjetivas constituída, a partir das relações estabelecidas com o território e com a cultura através dos valores, tradições, crenças e costumes. A partir de 1970 com a modernização da agricultura as dificuldades desse grupo se agravaram quanto as condições de inserção no mercado, acesso as políticas públicas entre outras, processo que ocorreu em todo território nacional. Nesse sentido, propõe-se compreender as principais discussões sobre agricultura familiar e território, destacando o comportamento sociocultural, econômico e organizacional das comunidades Cruzeiro dos Martírios e Paulistas no município de Catalão, Estado de Goiás. Para a realização foi feita a pesquisa teórica sobre a temática. A pesquisa empírica foi realizada nas comunidades: a) comunidade Cruzeiro dos Martírios, sendo aplicados um total de 15 roteiros de entrevista com os produtores rurais, o que representou uma amostra de 20,27%; b) comunidade Paulistas, sendo aplicados 11 roteiros de entrevista com os produtores, o que representou uma amostra de 32,35%. Fez-se, ainda, observações nos eventos socioculturais realizados nas comunidades (terços, festas religiosas). Verificou-se, que a identidade dos agricultores familiares das comunidades Cruzeiro dos Martírios e Paulistas é constituída a partir das bases materiais e imateriais, estando em dinâmica, ou seja, em um processo de construção histórica. Em ambas as comunidades observou-se o envelhecimento da população ocasionado pela migração dos jovens para a cidade em busca de estudo e emprego e, também, pela queda na taxa de fecundidade. Nessas comunidades nota-se a masculinização da população devido a migração seletiva, ou seja, maior saída de jovens do sexo feminino. Esses fatores podem comprometer a sucessão hereditária das propriedades. Os agricultores lançam mão de várias estratégias para se reproduzirem como a diversidade produtiva.

Made available in DSpace on 2014-07-29T15:32:07Z (GMT). No. of bitstreams: 1 Dissertacao_Cristiana_Fernandes.pdf: 817648 bytes, checksum: a119839915c6670e7217c4e7ce3d5cc3 (MD5) Previous issue date: 2008-06-06 / In these work is considered that Craftworks are pieces made with manual techniques that presuppose lack or a few utilization of industrial machines help. The consumption s acceleration provided by the globalization, the constant technology s breakthrough, the cultural industry and the tourism are some of the factors that alter the craftwork in so far as that appear risks of objects padronization and consequent change on its meaning and sense. Considering those suppositions, the market and production analisation, in other words, the craftwork in the and for the market having as focus what was showed on the Hippie and Cerrado markets in Goiânia, recovering its organizational net. The craftwork on the markets, besides being a way to survive for the many merchant, has peculiarities and particularities that strick out in Goiânia s city. It s emphasized that so the production as the comercialization are parts of economy s inferior circuit, for owning characteristics like informality, whether on the production system characterized by being familiar, or in the way of comercialization on the own market. The pieces production is constantly influenced by the television and by the fashion s tendency. But due to specifics contexts, as comercialization s place and public that buy the pieces, we notice that the crafwork brings up some modifications in each market studied. The research is justified by the need of geographic production that are about these activity, in spite of its relevance, seeing that, ordinarily, even in the short distance s trips, there are no one that don t buy a little present or don t admire the skill of someone who produces such or what object when go around the markets. Methodologically, we drew on the techniques of observation and interview with structured and semi structured questionnaires applied in fieldworks, besides the documental and bibliographic analysis / Considera-se neste trabalho que artesanato são peças feitas com técnicas manuais e que pressupõem ausência ou pouca utilização de auxílio de máquinas industriais. A aceleração do consumo propiciada pela globalização, o constante avanço da tecnologia, a indústria cultural e o turismo são alguns fatores que alteram o artesanato na medida em que há o risco de padronização dos objetos e conseqüente modificação no seu significado e sentido. Considerando-se tais pressupostos, analisa-se o comércio e a produção, ou seja, o artesanato no e para o mercado, tendo como foco aquele exposto nas feiras Hippie e do Cerrado em Goiânia, recuperando-se sua rede organizacional. O artesanato nas feiras, além de ser um meio de sobrevivência para os diversos feirantes, possui singularidades e particularidades que se destacam na cidade de Goiânia. Ressalta-se que tanto a produção quanto a comercialização são parte do circuito inferior da economia, por possuírem características como informalidade, seja no sistema de produção caracterizado por ser familiar, seja no modo de comercialização nas próprias feiras. A produção das peças é constantemente influenciada pela televisão e pelas tendências da moda. Mas devido a contextos específicos, como local de comercialização e público que compra as peças, notamos que o artesanato apresenta algumas modificações em cada uma das feiras estudadas. A pesquisa justifica-se pela carência de produção geográfica versando sobre esta atividade, apesar de sua relevância, já que comumente, mesmo nas viagens de curta distância, não há quem não compre uma lembrancinha ou não se admire com a habilidade de alguém para produzir tal ou qual objeto, ao circular por uma feira. Metodologicamente, recorrem-se às técnicas de observação, entrevistas e questionários estruturados e semi-estruturados aplicados em trabalhos de campo, além das análises documental e bibliográfica

A teaching portfolio allows lecturers to track their own growth and development in teaching and learning, as it helps to document their career’s journey. This study gained insight into this experience from the lecturers’ perspectives. The research paradigm was qualitative and the study used a sample of lecturers from an independent tertiary institution in Johannesburg. Personal interviews provided rich data and themes were developed from the data to answer the research questions concerning the value of doing a teaching portfolio. Lecturers’ perceptions provided clear evidence of the value of doing a teaching portfolio, because it developed their personal competence, knowledge, skills and higher-order thinking. However, the findings showed that the success of a teaching portfolio remained dependent on individual motivation and how the process was implemented. Any challenges experienced tended to negatively affect motivation, thereby decreasing the perceived value of a teaching portfolio. This study recommended that a teaching portfolio might offer a solution to some of the current education issues within the South Africa context, especially with regard to the lack of content knowledge and the disempowerment of teachers. / ʼn Onderrigportefeulje maak dit vir dosente moontlik om hul eie groei en ontwikkeling ten opsigte van onderrig en leer te monitor, omdat dit hulle help om hul loopbaan te dokumenteer. Hierdie studie gee insig in hierdie ervaring vanuit dosente se oogpunt. Die navorsingsparadigma was kwalitatief en die studie het ʼn steekproef van dosente van ʼn onafhanklike tersiêre instelling in Johannesburg behels. Persoonlike onderhoude het ryk data opgelewer en temas is op grond van die data ontwikkel om die navorsingsvrae oor die waarde van ʼn onderrigportefeulje te beantwoord. Dosente se persepsies was ʼn duidelike bewys van die waarde van ʼn onderrigportefeulje, omdat dit hul persoonlike bevoegdheid, kennis, vaardighede en hoërorde-denke ontwikkel. Die bevindinge het egter getoon dat die sukses van ʼn onderrigportefeulje steeds onderhewig is aan individuele motivering en hoe die proses geïmplementeer is. Enige uitdagings was geneig om ʼn negatiewe invloed op motivering te hê en sodoende die vermeende waarde van ʼn onderrigportefeulje te verlaag. Hierdie studie beveel aan dat ʼn onderrigportefeulje ʼn oplossing kan bied vir sommige van die opvoedingskwessies in die Suid-Afrikaanse konteks, veral met betrekking tot die gebrek aan inhoudkennis en die ontneming van onderwysers se mag. / Photefolio ya go ruta e kgontša bafahloši go latišiša kgolo le tšwetšopele tše e lego tša bona ka go goruta le go ithuta, ka ge e thuša go rekhota leeto la mošomo wa bona. Thutelo ye e hweditše tshedimošo maitemogelong a go tšwa tebelelong ya bafahloši. Dikgopolo ka ga nyakišišo e bile tša go hwetša tshedimošo ka go kwešiša le go lemoga mabaka a bothata gomme thutelo ye e dirišitše sampolo ya bafahloši go tšwa institušeneng ye e ikemetšeng ya morago ga marematlou go la Johannesburg. Ditherišano tša motho ka botee di tšweleditše datha ye bohlokwa gomme merero e hlagišitšwe go tšwa datheng go fa karabo ya dipotšišo tša dinyakišišo tše di lebanego bohlokwa bja go dira photefolio ya go ruta. Dikgopolo tša bafahloši di file bohlatse bjo bo kwešišegago bja bohlokwa bja go dira photefolio ya go ruta, ka gobane e godišitše, botsebi, tsebo, mabokgoni tša bona le mokgwa wa go nagana wa maemo a godimo. Le ge go le bjalo, dikhwetšo di bontšhitše gore katlego ya photefolio ya go ruta e dutše e ithekgile go tutuetšo ya motho le ka moo tshepedišo e phethagaditšwego. Ditlhohlo dife goba dife tšeo di itemogetšwego di bile le go huetša tutuetšo, ka gorealo tša fokotša boleng bjo bo lebeletšwego bja photefolio ya go ruta. Thutelo ye e šišintše gore photefolio ya go ruta e ka fa tharollo go tše dingwe tša ditlhagišo tša bjale tša thuto kemong ya Afrika Borwa, gagolo malebana le tlhokego ya dintlhatsebo, dikgopolo le melaotshepetšo tšeo di rutwago le go ithuta ka tšona gammogo le go se be le maatla ga barutiši. / Psychology of Education / M. Ed. (Psychology of Education)

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)

Abstracts in English, Zulu and Sotho / The provision of education through an open and distance learning (ODL) mode calls for institutions of higher learning to provide support services that can respond to students’ needs and expectations, and impact positively on their learning experiences. Tutorial support is one of the pillars of student support services which contribute to the academic success of students in this academic context. The use of technology has led institutions of higher learning to change the way support is provided to students by integrating online learning to reach students who cannot attend traditional face-to-face (F2F) tutorials at a specified time and venue. The University of South Africa (Unisa) responds to these global changes by integrating F2F and online services to support its students through the integrated tutor model (ITM) which seeks to address the learning needs and expectations of students. The study aimed to evaluate the effectiveness of this ITM. The study was guided by a social constructivist theory of learning supported by connectivism, empathy theory and Salmon’s five stage model of e-learning. The fundamental theory of social constructivism is based on the assumption that learning is constructed in a social setting before individuals engage with knowledge. The experiences of individuals play a big role in the construction of knowledge hence it is crucial to acknowledge their prior knowledge. Students who are supported through the ITM in the six Unisa regional service centres and the Unisa staff involved in the implementation of the ITM participated in the study. A purposive sampling technique was used to select these participants. A random sampling technique was also used to sample students to complete a questionnaire. Qualitative data were collected through individual and focus group interviews and documents analysis. The findings of this study reveal that the ITM is not quite ffective as it partly meets the students’ needs and does not meet students’ expectations. This is because Unisa offers students’ needs such as F2F and online tutor support for some modules. However, students’ expectations in terms of receiving teaching by tutors, provision of assignment aswers to students, fully fledged resource provision in the learning centres and receiving technical support from tutors are not met. In light of the findings, the study contributes to the ITM by identifying and filling its gaps using the Context, Input, Process and Product (CIPP) model of evaluation. The improvements will assist Unisa to relook at the ITM to intensify its support for students to fully meet their needs and expectations. / Uhlelo lokuhlinzeka ngemfundo olusebenzisa uhlelo oluvulekile nohlelo lokufunda ukude (ODL) linxusa amaziko emfundo aphakeme ukuthi anikeze anikeze izinsiza ezixhasayo ezingabhekana nezidingo nezinhloso ezilindelwe kubafundi kanti futhi zinomthelela omuhle ohlelweni lwabo lokufunda. Uxhaso lweThuthoriyali ngolunye lwezinsika zemisebenzi yokuxhasa abafundi olunegalelo kwimpumelelo yabafundi kwezemfundo kulesi sizinda sezemfundo. Ukusetshenziswa kobuchepheshe sekuholele amaziko emfundo ephakeme ukuba aguqule indlela abafundi abaxhaswa ngayo – ngokuhlanganisa uhlelo lokufunda nge-inthanedi ukufinyelela abafundi abangeke bakwazi ukuya kumathuthoriyali okuhlangana nabafundi ngobuso nobuso (F2F) ngesikhathi kanye nendaweni enqunyiwe.. INyuvesi yaseNingizimu Afrika (Unisa) ibhekene nalezi zinguquko zomhlaba ngokuhlanganisa uhlelo lwe-F2F kanye nezinsiza zohlelo lwe-inthanedi ukuxhasa abafundi bayo ngokusebenzisa imodeli ehlanganisiwe yamatjhutha (ITM) efuna ukwanelisa izidingo zokufunda kanye nezinhloso ezilindwe abafundi. Ucwaningo beluqonde ukuhlola ukusebenza kahle kohlelo lwa le ITM. Ucwaningo belulandela ithoyori ebizwa nge-social constructivist theory of learning ngokuxhaswa ukuxhumana (connectivism), i-empathy theory kanye nemodeli yokufunda kaSalmon yezigaba ezinhlanu. Ithiyori yokuqala yokwakhiwa komphakathi isuselwa phezu komqondo wokuthi ukufunda kwakheka ngaphansi kwesizinda sabantu ngaphambi kokuthi abantu bahlangane nolwazi. Ulwazi abantu abahlangabezana nalo ezimpilweni zabo ludlala indima esemqoka ekwakhiweni kolwazi, kanti-ke kubalulekile ukwamukela ulwazi lwabo lwangaphambilini. Abafundi abaxhaswa ngohlelo lwe-ITM ezikhungweni ezisebenzayo eziyisithupha zezifunda kanye nabasebenzi ababandakanyeka ekusetshenzisweni kwe-ITM bazibandakaye kulolu cwaningo. Indlela yesampuli enezinhloso isetshenziselwe ukukhetha labadlalindima, kanti ngakwenye ingxenye indlela yokuksampula yinoma ngubani isetshenzisiwe ukusampula abafundi ukuba baqede umbhalo wemibuzo. Idatha eyencike kwingxoxo iqoqwe ngokusebenzisa izinhlolovo zabantu kanye namaqembu aqondiwe kanye nokuhlaziywa kwemibhalo. Ulwazi olutholakele lwalolu cwaningo luveza ukuthi i-ITM ayisebenzi kahle njengoba yanelisa izidingo zabantu ngokwesigamu, kodwa lolu hlelo lwe-ITM alufinyeleli izinhloso zabo ezilindelwe. Lokhu kungenxa yokuthi i-Unisa ifeza izidingo ngokuhlinzeka, isibonelo, ngohlelo lokufundisa lwe-F2F kanye nohlelo lwe-inthanedi lwamatshutha uma kunesidingo sabanye omojuli. Yize-kunjalo, izimpokophelo ezilindelwe ngabafundi mayelana nokuhlinzekwa ngemfundo eyethulwa ngamatshutha, ngokunikezwa izimpendulo zama-asayimenti kubafundi, ngokusebenzisa imithombo eqotho ezikhungweni zokufunda kanye nokuthola uxhaso lwesithekinikhali oluvela kumatshutha akuyona imisebenzi efeza lokhu. Ngokolwazi olutholakele, ucwaningo lufaka igalelo kwi-ITM ngokwehlukanisa kanye nokuvala izikhala zalo ngokusebenzisa i-Context. I-Input, uHlelo kanye noMkhiqizo (CIPP) okuyimodeli yokuhlola. Izintuthuko zizonceda i-Unisa ukuba ibuyekeze i-ITM ukuqinisa uxhaso lwayo kubafundi ukuze kufezwe izidingo kanye nezinhloso zabo ezilindelwe. / Kabo ya thuto ka mokgwa wa go ithuta ga phatlalatša le ga kgole (ODL) o ipiletša go dihlongwa tša thuto ya godimo go fana ka ditirelo tša thekgo tšeo di ka kgonago go arabela dinyakwa le dikemelo tša baithuti le go ama gabotse maitemogelo a bona a go ithuta. Thekgo ya dithutišo ke ye nngwe ya dikokwane tša ditirelo tša thekgo ya baithuti tšeo di tsenyago letsogo go katlego ya baithuti ka mo seemong se sa thuto. Tšhomišo ya theknolotši e dirile gore dihlongwa tša thuto ya godingwana go fetoša ka fao thekgo e fiwago ka gona go baithuti – ka go kopanya go ithuta inthaneteng gore go fihlelele baithuti bao ba sa kgonego go tsenela dithutišo tša setlwaedi tšeo baithuti ba kopanago le bafahloši (F2F) ka phapošing ya bofahloši. Yunibesithi ya Afrika Borwa (Unisa) e arabela ditlhohlo tše tša lefase ka bophara ka go kopanya F2F le ditirelo tša inthaneteng go thekga baithuti ba yona ka go diriša mokgwa wa go ruta wo o kopantšwego (ITM) wo o nyakago go rarolla dinyakwa le dikemelo tša go ithuta tša baithuti. Dinyakišišo di ikemišeditše go sekaseka go šoma gabotse ga ITM ye. Dinyakišišo di hlahlilwe ke teori ya kago ya setšhaba mabapi le go ithuta yeo e thekgwago ke tirišo ya theknolotši thutong, teori ya go naganela ba bangwe le mokgwa wa Salmon wa dikgato tše hlano tša go ithuta. Teori ya motheo ya kago ya setšhaba e theilwe go kwešišo ya gore go ithuta go agwa ka seemong sa setšhaba pele ga ge batho ba ka hwetša tsebo. Maitemogelo a batho a raloka tema ye bohlokwa ka go kago ya tsebo, ke ka lebaka leo go le bohlokwa go lemoga tsebo ya bona ya peleng. Baithuti bao ba thekgwago ka ITM ka disenthareng tša Unisa tše tshela tša ka dileteng le baithuti bao ba kgathago tema ka phethagatšong ya ITM ba tšere karolo ka mo dinyakišišong. Mokgwa wa go dira sampole ka maikemišetšo o šomišitšwe go kgetha bakgathatema ba, mola mokgwa wa go dira sampole ka sewelo o šomišitšwe go dira sampole ya baithuti go tlatša dipotšišo tša dinyakišišo. Tshedimošo ya boleng e kgobokeditšwe ka go botšiša batho ba nnoši le dihlopha dipotšišo gomme gwa dirwa le tshekatsheko ya dingwalwa. Dikutollo tša dinyakišišo tše di utolla gore ITM ga e šome gabotse kudu go fihlelela dinyakwa tša baithuti ebile ga e fihlelele dikemelo tša bona. Se ke ka lebaka la gore Unisa e hlokometše dinyakwa tša baithuti ka go fana ka, go fa mohlala, F2F le thekgo ya baithuti ya inthaneteng go dimotšule tše dingwe. Le ge go lebjale, dikemelo tša baithuti mabapi le go amogela go rutwa ke bafahloši, go fa baithuti dikarabo tša diasaenemente ke bafahloši, kabo ya methopo ka botlalo ka disenthareng tša thuto le go amogela thekgo ya sethekniki go tšwa go bafahloši ga di fihlelelwe. Go lebeletšwe dikkutollo tše, dinyakišišo di tsenya letsogo go ITM ka go tseba le go tlatša dikgoba ka go diriša mokgwa wa tshekatsheko wa Seemo, Tšweletšo, Tshepedišo le Setšweletšwa (CIPP). Dikaonafatšo tše di tla thuša Unisa go lekodišiša ITM go maatlafatša thekgo ya yona go baithuti gore e fihlelele dinyakwa le dikemelo tša bona ka botlalo. / Curriculum and Instructional Studies / D. Ed. (Curriculum Studies)