590 research outputs found

    The student voice as contributor to quality education through institutional design

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    The inclusion of students’ voices in different aspects of quality has evolved over the years. Consequently, students take on different roles – ranging from providing feedback on their educational experiences, to actively participating or even leading change initiatives. In making claims for different ways of conceptualising or including students’ voices, the literature often criticises some forms of engagement with student voices in favour of another. This article is based on the premise that the complexity of quality outcomes in higher education needs to be complemented by a variety of inputs from students. By drawing from examples of two high-impact practices from the University of the Free State, the article further argues for using different forms of student voices to inform how we design institutional support structures to ultimately enhance the quality of students’ educational experiences. At its core, this cyclical interaction between students’ voices and institutional design revolves around evidence – thereby contributing to the quality of educational outcomes, and ultimately students’ success

    Evaluating black women’s participation, development and success in doctoral studies: A capabilities perspective

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    Although black women show an increased presence in doctoral study, the probability of intersecting gendered and racial disadvantage is often overlooked through relying on separate numerical transformation progress indicators for gender and race. To take a more active approach to furthering social justice for this marginalised group, we need to explore more holistic ways of mapping transformation. In this sense, we argue for the application of the capabilities approach as an evaluative framework which allows for an assessment of freedoms or capabilities students are able to make use of in pursuing the lives they have reason to value. Furthermore, factors impacting on students’ capability formation are also considered, thus providing a multidimensional, ethically individualistic exploration of lives. The experiences of seven black women speak of barriers they have experienced throughout their doctoral journeys, but the data also create a sense of optimism as the potential of capability expansion is addressed

    The role of Data Transfer Agreements in ethically managing data sharing for research in South Africa

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    A multitude of legislation impacts the use of samples and data for research in South Africa (SA). With the coming into effect of the Protection of Personal Information Act No. 4 of 2013 (POPIA) in July 2021, recent attention has been given to safeguarding research participants' personal information. The protection of participants' privacy in research is essential, but it is not the only risk at stake in the use and sharing of personal information. Other rights and interests that must also be considered and safeguarded include the right to non-discrimination, the right to dignity, and the right to enjoy the benefits of scientific progress. This can be achieved by ensuring that the ethical values and universal principles that underpin the research landscape, namely equity, reciprocity, justice and solidarity, are embedded in the regulatory framework for the management and use of personal information. This paper advocates an integrated bioethics approach to the use of personal information for research in SA. A key feature in embedding such an approach is a Data Transfer Agreement (DTA) that appropriately integrates the safeguards and protections set out by our regulatory framework with bioethical rules and procedures when personal information is used and shared for research purposes. This paper thus calls for the development of a national DTA that is guided by key ethical principles when data are shared for research purposes. This paper will be followed by a webinar on 23 June 2022 hosted by the Department of Science and Innovation and the SA Medical Research Council, where the recommendations and suggestions set out herein will be unpacked, discussed and debated by relevant stakeholders

    Phylogenetic analysis of canine distemper virus in South African wildlife

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    <div><p>Canine distemper virus (CDV) causes a severe contagious disease in a broad range of hosts. This is the first study to genetically characterise CDV strains from four different wildlife species in South Africa. The phylogenetic diversity of CDV is examined, using the haemagglutinin gene. The South African wildlife CDV isolates showed a high degree of similarity to CDV in South African domestic dogs. Phylogenetic analyses confirmed the presence of 12 geographical lineages with CDV strains from South African wildlife falling within the Southern African lineage. The study reveals two possible co-circulating sub-genotypes corresponding to the northern and southern regions of South Africa respectively. CDV strains from the non-canid species were distinct, but similar to CDV isolates from domestic dog and wild canids. Residues at amino acid sites of the SLAM binding region support the notion that CDV strains encoding 519I / 549H are better adapted to non-canid species than canid species. The amino acids present at site 530 are conserved regardless of host species. Strains from South African wild carnivores showed no difference between host species with all strains presenting 530N. All non-canid strains in this study presented the combination 519I/549H. No evidence of host adaptation or lineage grouping was observed for the Nectin-4 binding region. Further studies should include CDV strains isolated from various hosts from a wider geographical range in South Africa.</p></div

    The use of the South African frog (Xenopus laevis) in the study of spinal reflex physiology

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    The use of the South African frog (Xenopus laevis) in studies on spinal neurophysiology is introduced for the study of monosynaptic reflexes. Motorneurone excitability in this species may be measured by the classical procedure of monosynaptic testing. Operational procedures for exposing the spinal cord and the roots of the spinal nerves are described. Detailed information on stimulating and recording techniques which have been found satisfactory for the South African frog are given.The journals have been scanned in colour with a HP 5590 scanner; 600 dpi. Adobe Acrobat v.11 was used to OCR the text and also for the merging and conversion to the final presentation PDF-format

    Beyond microarrays: Finding key transcription factors controlling signal transduction pathways

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    BACKGROUND: Massive gene expression changes in different cellular states measured by microarrays, in fact, reflect just an "echo" of real molecular processes in the cells. Transcription factors constitute a class of the regulatory molecules that typically require posttranscriptional modifications or ligand binding in order to exert their function. Therefore, such important functional changes of transcription factors are not directly visible in the microarray experiments. RESULTS: We developed a novel approach to find key transcription factors that may explain concerted expression changes of specific components of the signal transduction network. The approach aims at revealing evidence of positive feedback loops in the signal transduction circuits through activation of pathway-specific transcription factors. We demonstrate that promoters of genes encoding components of many known signal transduction pathways are enriched by binding sites of those transcription factors that are endpoints of the considered pathways. Application of the approach to the microarray gene expression data on TNF-alpha stimulated primary human endothelial cells helped to reveal novel key transcription factors potentially involved in the regulation of the signal transduction pathways of the cells. CONCLUSION: We developed a novel computational approach for revealing key transcription factors by knowledge-based analysis of gene expression data with the help of databases on gene regulatory networks (TRANSFAC(® )and TRANSPATH(®)). The corresponding software and databases are available at
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