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Thèse en cotutelle / Thesis under joint supervision / Les Peuples autochtones à travers le monde sont disproportionnellement touchés par le diabète. Parmi ces peuples, les Cris d’Eeyou Istchee et les Pekuakamilnuatsh, au Québec (Canada), ainsi que les Parikwene, en Guyane française (France), recourent à leur médecine locale pour soigner cette maladie. En 173 entrevues semi-dirigées, 208 participants venant de ces communautés et/ou travaillant dans leurs services de santé ont décrit ces médecines. Une méthode de recherche mixte, combinant des analyses thématiques à des statistiques multivariées, est développée pour analyser ces descriptions. Ces analyses ont montré que les participants cris, ilnu et parikwene décrivent leurs médecines en lien avec le diabète tant par les différents éléments du monde naturel, que les pratiques et coutumes locales qui en découlent, que les concepts les liant au territoire. Les pharmacopées à base animales et végétales font parties des thèmes les plus discutés. Plus de 381 espèces (109 animaux, 267 plantes, cinq lichens et champignons) lient les systèmes médicinales et alimentaires ensemble via des notions associées au bien-être ou aux propriétés organoleptiques. Au Québec, là où la population autochtone est plus impliquée dans les services de santé, il existe un rapprochement de la description des médecines locales entre le secteur de la santé et ses usagers. De façon générale, la place de l’alimentation dans les médecines locales ne peut être négligée dans le contexte du diabète. De plus, ces médecines sont indissociables du territoire qui offre un espace de guérison, de subsistance, et de continuité culturelle. Cela renvoie, in fine, à des questions importantes sur la reconnaissance des droits autochtones et des droits fonciers. / Indigenous Peoples around the world are disproportionately affected by diabetes. Amongst them, the Cree of Eeyou Istchee and the Pekuakamilnuatsh, from Québec (Canada), and the Parikwene, from French Guiana (France), resort to their local medicines to treat this disease. In 173 semi-structured interviews, 208 participants from these communities and/or working in their healthcare services described these medicines. A mixed-methods research approach, combining thematic analyses with multivariate statistics, was developed to analyse these descriptions. These analyses showed that Cree, Ilnu and Parikwene participants described their medicines related to diabetes through different elements of the natural world, the local practices and customs which result from them, as well as concepts linking them to the Land. Animal and plant-based pharmacopoeias are among the most discussed topics. In total, more than 381 species cited, including 109 animals, 267 plants, as well as five lichens and mushrooms, link the local dietary and medicinal systems together via notions associated with well-being or their organoleptic properties. In Québec, where Indigenous Peoples are more involved in their healthcare services, the representation of local medicines is much closer between healthcare workers and users. In general, the place of food in local medicines cannot be neglected in the context of diabetes. In addition, these medicines are inseparable from the Land which offers a space for healing, subsistence, and cultural continuity. This brings up important questions about the recognition of Indigenous rights and land rights.

The Digital Doorway (DD) project provides computing infrastructure in impoverished communities in South Africa. DD terminals offer opportunities for unassisted- and peerassisted learning of basic computer skills, and varying computing activities ranging from entertainment, to independent research. This study addresses software application usage, and how it relates to user demographics (age and gender) and location, in order to better understand both the user base, and the nature and extent of DD interactions. A mixed-methods approach is employed, involving log-files, interviews, questionnaires, and naturalistic observation; to build up a holistic picture of application usage and user behaviour at selected sites. Important issues with respect to ICT for Education and Development in the DD context, are addressed. Analysis of the data indicates notable trends, and relationships between age, gender, location, and application usage. User behaviour and environmental effects on usage are discussed, and recommendations provided for future DDs and similar initiatives. / Computing / M. Tech. (Information Technology)

The South African Reserve Bank presents an annual balance sheet for the South African household sector constructed from macro-economic data estimates. Broad asset and liability classes are presented which can be disaggregated with the use of micro-level data obtained directly from households. At the time of the study, however, micro-level data on the different asset and liability classes accumulated by households was not available. The main objective of the study was to disaggregate and measure the asset and liability base of South African households in metropolitan and non-metropolitan areas using micro-level data. The study used a mixed methodological approach, consisting of both qualitative and quantitative data and was conducted in three phases. In the first phase, a comprehensive literature review was conducted on the recognition and measurement of household assets and liabilities. Economic theories that explain asset and liability accumulation were reviewed and international surveys on household net wealth measurement scrutinised. A heuristic model of a financial position section for the South African household sector was developed. In the second and qualitative phase, online and face-to-face focus group deliberations were conducted with experts in the field of household finance to ensure that the newly developed financial position section would robustly recognise and measure all possible household asset and liability classes. In the third and quantitative phase, the financial position section was included in an omnibus survey and data was collected from a representative sample of 2 606 households in South Africa. The weighted data was segmented in terms of metropolitan and non-metropolitan areas and presented as statements of financial position based on the classification, recognition and measurement principles of “The Conceptual Framework for Financial Reporting 2010”. Composition analyses presented a secondary objective, namely to explore the effect of identified independent demographic variables on asset and liability accumulation. Multivariate analysis of variance (MANOVA) identified meaningful interaction effects for (1) age, income and area; (2) income and age; (3) education, income and age; and (4) education and income on asset accumulation and an age and income interaction effect on liability accumulation. The study contributes to the body of knowledge on the contemporaneous effect of age, income, education and area of residence on household asset and liability accumulation and provides information on South African household net wealth not yet available. The disaggregated asset and liability base will assist policy makers both at micro- and macro-economic level with the overview and management of South African household net wealth. / Business Management / D. Accounting Science

Text in English / Global and South African business challenges necessitate an increased focus on the need for effective leadership. The leaders of South African public listed organisations need to investigate new business solutions to enhance and sustain organisational effectiveness. Public listed South African organisations on the Johannesburg Stock Exchange (JSE) were selected as the organisation type for this study. This study was motivated by the need for public listed South African organisations to explore organisational leadership as a means to assist in differentiating their organisations from competitors, thereby enhancing organisational competitiveness. The primary research objective of this study was to investigate and establish an organisational leadership brand concept model for public listed South African organisations. The discussion of the literature covered the global and South African business context, the concepts of the nature of organisational leadership, brand and organisational leadership brand, and emminated in an exploratory conceptualisation of organisational leadership brand for public listed South African organisations. The pragmatic paradigm was used as the foundation of this study. The study adopted an exploratory, sequential mixed methods research approach, combining a qualitative emphasis and supportive quantitative research approach to conduct the exploratory research. The qualitative findings proposed the concepts: the nature of organisational leadership and organisational leadership brand, including stakeholders and these concepts served as the basis for designing the quantitative survey questionnaire. The quantitative results indicated reliable questionnaire items, and based on the exploratory statistical analysis of the multivariate linear regression equation, described the organisational leadership brand (OLB) concept exploratory model with the best fit. An integration of the qualitative findings and quantitative results provided the empirical support to achieve the primary research objective. The OLB concept model integrates the concepts of organisational leadership and organisational leadership brand. The study contributed across the methodological, theoretical and practical domains as follows: the nature of organisational leadership for South African public listed organisations was conceptualised; the elements comprising the concept of OLB for public listed South African organisations was described; the OLB concept model for public listed South African organisations describes the development of organisational leadership brand equity through four levels of organisational leadership brand equity development; and the OLB concept model for public listed South African organisations may assist by providing guidance for the senior leadership of organisations in establishing organisational leadership brand equity. Furthermore, the study’s research approach provides support for the use of a mixed methods research approach in the study of organisational leadership within the pragmatic context of business organisations / Industrial & Organisational Psychology / D. Litt. et Phil. (Consulting Psychology)

High school students need to be equipped with the competencies that may enable them to adapt to the increasing demands of learning in the school and beyond. To this end, the main research question of this study was, namely How can the self-regulated learning of adolescents be developed at high school? The aim of the study was to design, implement and evaluate a study skills programme for high school students. The social-cognitive theory, in particular the self-regulated Learning (SRL) theory, was used as the conceptual framework on which this study was based. An explanatory, sequential, mixed-methods research design was implemented. Purposeful sampling was used to select the participants in the three phases of the research project. Two classes of Grade 10-students (an experimental and a comparison group) from one school participated in the study, as follows: (i) in the first quantitative phase both classes wrote a pre-test, using the Learning and Strategies Inventory - High School Version (LASSI-HS); (ii) this was followed by a qualitative phase over 10 weeks. During this time a programme was implemented with the experimental group, once per week for 30 minutes (during school hours), and a 30 minute session in the afternoons. Individual work was also done with eight students, who were purposefully sampled. Between one and four sessions were held with each of the eight students. During the 10 weeks data were collected continuously by means of individual interviews with the eight students, as well as from their journals. In addition, the researcher collected data by means of field-notes. (iii) After the 10 weeks, the final quantitative phase involved both the experimental and the comparison groups in the writing of a post-test. The results indicated that the programme to enhance the students’ goal-setting, self-monitoring and self-evaluation strategies was successful. The students also indicated an improvement in their attitudes, motivation, information-processing, and in selecting the main ideas in their study material. However, shortcomings were noted in certain areas. Based on the literature and the empirical findings of the study, an improved programme for the development of the adolescents’ SRL in high school was designed. The programme recommended the early commencement of the programme, and that the two problem areas that were identified, namely time-management and motivational strategies be emphasised. / Psychology of Education / D. Ed. (Psychology of Education)

Limited research has investigated the stress-related experiences of South African nursing students. Moreover, there is a scarcity of empirical studies that have reported on the development and evaluation of psycho-educational stress-management programmes that focus on both pathogenic, as well as positive and meaning-related factors among nursing students. The aim of this investigation was to study compassion fatigue, burnout, compassion satisfaction and meaning in life among a sample of nursing students with the aim of developing, and then empirically evaluating, a psycho-educational stress-management programme. The psycho-educational stress-management programme was articulated from a logotherapy-based perspective. A research design, consisting of three interdependent phases, was used to pursue the aim of the study. The aim of phase 1 was to describe the (1) prevalence of, and (2) correlations between, the deleterious and positive and meaningful effects of caring and among a sample of 80 nursing students (Mage = 22.40 years, SD = 11.1, female = 91.25%). The results indicated that participants may benefit from a logotherapy-based psycho-educational stress-management programme. The purpose of phase 2 of the study was to develop a logotherapy-based psycho-educational stress-management programme for nursing students. The goal of the logotherapy-based psycho-educational stress-management programme was to assist participants to develop the skills, knowledge and abilities that may be required to address deleterious challenges, and enhance positive and meaning-related opportunities. In phase 3 the logotherapy-based psycho-educational stress-management programme was presented to a sample of 42 first year nursing students (Mage = 20.21, SD = 1.57, female = 79.31%). A convergent parallel mixed methods research design was used to evaluate the efficacy of the logotherapy-based psycho-educational stress-management programme. Quantitative results indicated (1) a reduction in compassion fatigue and burnout, and (2) an increase in compassion satisfaction and meaning in life, scores over the course of the programme. Qualitative analysis supported the quantitative results. It was subsequently concluded that the logotherapy-based psycho-educational stress-management programme was effective in assisting participants to address the deleterious , as well embrace the positive and meaning-related effects of caring. However, ongoing support may be required to fully assist nursing students to address stressful challenges. / Psychology / D. Litt. et Phil. (Psychology)

The South African Reserve Bank presents an annual balance sheet for the South African household sector constructed from macro-economic data estimates. Broad asset and liability classes are presented which can be disaggregated with the use of micro-level data obtained directly from households. At the time of the study, however, micro-level data on the different asset and liability classes accumulated by households was not available. The main objective of the study was to disaggregate and measure the asset and liability base of South African households in metropolitan and non-metropolitan areas using micro-level data. The study used a mixed methodological approach, consisting of both qualitative and quantitative data and was conducted in three phases. In the first phase, a comprehensive literature review was conducted on the recognition and measurement of household assets and liabilities. Economic theories that explain asset and liability accumulation were reviewed and international surveys on household net wealth measurement scrutinised. A heuristic model of a financial position section for the South African household sector was developed. In the second and qualitative phase, online and face-to-face focus group deliberations were conducted with experts in the field of household finance to ensure that the newly developed financial position section would robustly recognise and measure all possible household asset and liability classes. In the third and quantitative phase, the financial position section was included in an omnibus survey and data was collected from a representative sample of 2 606 households in South Africa. The weighted data was segmented in terms of metropolitan and non-metropolitan areas and presented as statements of financial position based on the classification, recognition and measurement principles of “The Conceptual Framework for Financial Reporting 2010”. Composition analyses presented a secondary objective, namely to explore the effect of identified independent demographic variables on asset and liability accumulation. Multivariate analysis of variance (MANOVA) identified meaningful interaction effects for (1) age, income and area; (2) income and age; (3) education, income and age; and (4) education and income on asset accumulation and an age and income interaction effect on liability accumulation. The study contributes to the body of knowledge on the contemporaneous effect of age, income, education and area of residence on household asset and liability accumulation and provides information on South African household net wealth not yet available. The disaggregated asset and liability base will assist policy makers both at micro- and macro-economic level with the overview and management of South African household net wealth. / Business Management / D. Com. (Accounting Science)

Text in English / Developments in Internet technology and pervasive computing over the past two and half decades have resulted in a variety of Web-based applications (WBAs) that provide products and services to online users or customers. The Internet is used not only to transfer information via the web but is increasingly used to provide electronic services including business transactions, information-delivery and social networking, as well as e-government, e-health and e-learning. For such organisations, e-service quality, usability and user experience are considered to be critical determinants of their products’ or services’ success. Many studies to model these three concepts separately have been undertaken as part of broader studies of software quality or service quality modelling. However, to the current researcher’s knowledge, none of the studies have focussed on proposing an evaluation model that integrates and combines the three of them. This research is an effort to fill that gap. The primary purpose of this mixed-methods research was to develop a conceptual integrated model for evaluating e-service quality, usability and user experience (e-SQUUX) of WBAs and then contextualise it to evaluation of a University web portal (UWP). This was undertaken using an exploratory sequential research design. During a qualitative phase, an extensive extensive systematic literature review of 264 relevant sources relating to dimensions of e-service quality, usability and user experience, was undertaken to derive an integrated conceptual e-service quality, usability and user experience (e-SQUUX) Model for evaluating WBAs. The model was then empirically refined through a sequential series of validations, thus developing various versions of the e-SQUUX Model. First, it was content validated by a set of four expert reviewers. Second, during the quantitative phase, in the context of a University web portal, a questionnaire survey was conducted that included a comprehensive pilot study with 29 partipants, prior to the main survey. The main survey data from 174 particiapants was used to determine a validated model, using Exploratory factor analysis (EFA), followed by producing a structural model, using partial least square – structural equation modelling (PLS-SEM). This version consisted of the components of the final e-SQUUX Model. Consequently, the research enriches the body of knowledge on IS and HCI by providing the e-SQUUX Model as an evaluation tool. For designers, developers and managers of UWPs, the model serves as a customisable set of evaluation criteria and also provides specific recommendations for design. In line with the Exploratory sequential design of mixed methods research, the findings of the qualitative work in this research influenced the subsequent quantitative study, since the potential Likert-scale questionnaire items were derived from the definitions and meanings of the components that emanated from the qualitative phase of the study. Consequently, this research is an exemplar for developing an integrated evaluation model for specific facets or domains, and of its application in a particular context, in this case, a University web portal. Keywords: e-service quality, usability, user experience, evaluation model, integrated model, exploratory factor analysis, partial least square – structural equation modelling (PLS-SEM), mixed methods research, Exploratory sequential design, quantitative study, qualitative study, validation, Web-based applications, University web portal / Information System / Ph D. (Information Systems)