Academy of Science of South Africa (ASSAf): Open Journal Systems
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Mergers and acquisitions between online automobile-marketplace platforms: Responses by competition authorities in South Africa, Australia, and the United Kingdom
No full textThis study explores how competition authorities in three jurisdictions—South Africa, Australia, and the United Kingdom—have responded to proposed corporate mergers and acquisitions involving online intermediation platforms that provide automobile marketplaces. The article examines the notified (and ultimately prohibited) MIH eCommerce Holdings acquisition of WeBuyCars in South Africa; the notified (and authorised) Gumtree acquisition of Cox Media in Australia; and, in the UK, the notified (and authorised) eBay acquisition of Motors.co.uk. The author evaluates the competition considerations that came to the fore in each of these three cases and, based on these determinations, the competition authorities’ decisions. The article then highlights some of the complexities that digital online intermediation platforms pose for competition authorities, and some of the possible ways in which the complexities can be managed
Framings of colourism among Kenyan Twitter users
No full textColourism is a form of discrimination where dark-skinned people of colour are perceived and treated less favourably than lighter-skinned people of the same ethnic group or racial classification. Much of the scholarly literature on colourism is focused on the experiences of African-Americans in the United States, but there is also substantial literature examining colourism’s impacts for Americans of Latinx, Indigenous, and Asian ancestry, and for people of colour in the Caribbean, Latin America, the UK, Europe, the Asia-Pacific, and parts of Africa. To date, there has not been significant scholarly focus on the phenomenon as it manifests in Kenya. This study sought to address that research gap by: (1) exploring the extent to which colourism is an issue of concern among Kenyan users of the social media platform Twitter; and (2) identifying the main colourism themes present in posts in the Kenyan Twitter ecosystem. The research entailed mining Kenyan Twitter data for nine and a half months in 2022, which resulted in the documentation of 7,726 unique posts on elements of colourism, as posted from 5,094 unique Twitter user accounts. Using inductive frame analysis, three predominant thematic categories were identified across the posts: (1) colourism perceptions; (2) colourism experiences; and (3) colourism influence. The frame analysis also uncovered sub-themes in each of these three broad categories. It was found that most of the Kenyan Twitter users who tweeted on matters of colourism during the period studied both acknowledged the existence of colourism’s manifestations and at the same time rejected the manifestations, advocating for a future free from such discrimination
Academics’ perceptions on online continuous professional development in higher education
Get PDFThis study aimed to investigate academics’ perceptions of online continuous professional development (OCPD) and the design and development of online modules in higher education. Fourteen academics from one faculty at the University of Technology in South Africa participated. In selecting the participants for this study, purposive and convenient sampling was applied. A qualitative case study approach was used. Data were collected through semi-structured interviews and open-ended questionnaires. Saldaña’s thematic approach to analysis was used to analyse data using Atlas.ti. It was found that most of the academics who attended OCPD were able to build their module on IMFUNDO because the instructional designer provided the module structure or template. The findings revealed that the university’s eChampions contributed immensely during the process by providing additional support in the departments. It is recommended that further studies be conducted on the students’ perceptions of implementing the IMFUNDO modules developed in this study
Empathy and associated influencing factors in occupational therapy students: A cross-sectional study
Get PDFINTRODUCTION: Empathy, often described as the comprehension of another person's state of mind, enables one to appreciate social environments and anticipate others' behaviour. In occupational therapy, the therapeutic use of self, which is grounded in empathy, is commonly considered essential, as it enables therapists to manage a therapeutic relationship with clients. However, high caseloads, stressors and pressure to perform often impact empathy levels. This study aimed to determine the empathy levels of undergraduate occupational therapy students, as well as factors affecting empathy levels METHOD: A quantitative approach was used, with an observational, cross-sectional study methodology, employing an electronic survey consisting of the Interpersonal Reactivity Index (IRI) and a questionnaire developed by the researchers RESULTS: In total, 112 (response rate 70.4%) students participated in the study. Overall, the students had a satisfactory level of empathy. Of concern, however, was the impact of the Covid-19 pandemic and the lack of clinical fieldwork experience, which possibly contributed to the lower empathy levels observed among second-and third-year students CONCLUSION: From the findings, it is suggested that more attention should be given to empathy, as it plays an integral role in practice with clients, as well as in the training of occupational therapy students Implications for practice The findings suggest the opportunity for interventions and support systems that can help students manage high caseloads, stressors, and performance pressures, while also fostering and maintaining empathy. Implementing strategies such as stress management programs, mindfulness training, and self-care initiatives can help mitigate the negative impact on empathy levels and promote the development of empathetic skills in future occupational therapists. The research study's results have implications for the professional practice of occupational therapy. It emphasizes the need for ongoing education and training programs that focus on empathy development and maintenance throughout a therapist's career. By providing therapists with the tools, resources, and support to sustain their empathy levels in challenging work environments, the study suggests that the quality of care provided to clients can be enhanced, leading to better therapeutic outcomes and overall client satisfaction. Organizational changes within healthcare settings may be necessary to address workload issues and create a supportive environment that nurtures empathy among occupational therapy professionals
Collaboration within a curriculum of support in the classroom: occupational therapists' and educators' perceptions and experiences
Get PDFIntroduction: According to South Africa's key education policies, all children can learn and need support, necessitating collaboration between occupational therapists and educators. Collaboration between occupational therapists and educators within the classroom is however a relatively new practice in South Africa and there is a dearth of literature that report on studies in this regard. The aim of this study was thus to explore occupational therapists' and educators' experiences in adopting a classroom approach in three primary mainstream schools in the Metro North education district in the Western Cape. Methodology: A qualitative research approach andexploratory descriptive design was utilised. Data collection included semi-structured interviews and focus groups with educators and occupational therapists who participated in the curriculum of support in the classroom programme. Thematic data analysis was conducted. Findings: Three themes highlighting the meaning and value the participants assigned to classroom collaboration, andfactors that facilitate or limit the implementation of the curriculum of support emerged from the analysis. Conclusion: The study is useful in expanding the understanding of the changing role of occupational therapists within the context of inclusive education and contributes to the development of educator support strategies utilising the whole classroom approach. This approach entails the educator and occupational therapist working together in implementing activities in the classroom to all learners. These learning activities are based on curriculum themes and occupational therapy principles and components. IMPLICATIONS FOR PRACTICE Occupational therapists' roles in the education practice context are expanding from traditionally working in special school settings to providing support to educators within public mainstream schools. The role of the occupational therapist within public mainstream schools is evolving from a consultative role and providing input into the individual support of learners to providing hands-on support to educators and collaborating with them within the classroom
A review of the book The Boy Who Never Gave Up: A Refugee’s Epic Journey to Triumph. Written by E Taban and A Crofts
No full textAbout the book: In 1994, 16-year-old Emmanuel Taban walked out of war-torn Sudan with nothing and nowhere to go after he had been tortured at the hands of government forces, who falsely accused him of spying for the rebels. When he finally managed to escape, he literally took a wrong turn and, instead of being reunited with his family, ended up in neighbouring Eritrea as a refugee. Over the months that followed, young Emmanuel went on a harrowing journey, often spending weeks on the streets and facing many dangers. Relying on the generosity of strangers, he made the long journey south to South Africa, via Ethiopia, Kenya, Tanzania, Mozambique and Zimbabwe, travelling mostly by bus and on foot. When he reached Johannesburg, 18 months after fleeing Sudan, he was determined to resume his education. He managed to complete his schooling with the help of Catholic missionaries and entered medical school, qualifying as a doctor, and eventually specialising in pulmonology. Emmanuel’s skill and dedication as a physician, and his stubborn refusal to be discouraged by setbacks, led to an important discovery in the treatment of hypoxaemic COVID-19 patients. By never giving up, this son of Sudan has risen above extreme poverty, racism and xenophobia to become a South African legend. 
On the use of late-time drawdown in interpreting aquifer pumping test
No full textThe review aims to provide a common understanding of the use of late-time drawdown to interpret aquifer pumping tests. The first part of the review provides an overview of the use of the late-time drawdown in literature to illustrate where and how the term is being used. A discussion on the practical implications of using the term and its significance is then presented. The review shows the use of the late-time drawdown in three main ways: the application of the Cooper and Jacob time-drawdown method, the description of the third segment of the unconfined aquifer drawdown-time curve, and when trying to estimate representative/effective transmissivity parameters in heterogeneous aquifers. Unlike the other two situations, the use of late-time data in typical unconfined aquifers is supported by the groundwater flow principles and hence has a meaningful application. The aspects highlighted in this review are important to improve the theoretical and practical knowledge required for analysing and interpreting aquifer pumping test data
Moisture content distribution model for the soil wetting body under moistube irrigation
No full textThis study investigated the moisture distribution characteristics of a soil wetting body under different influencing factors to inform the design and management of a moistube irrigation system. A mathematical model of soil moisture movement under moistube irrigation was established based on Hydrus-2D software. The suitability of the Hydrus-2D simulation model was verified by laboratory experiments. Numerical simulations were carried out with Hydrus-2D to investigate the influence of soil texture, initial moisture content, moistube specific discharge and irrigation time on the moisture distribution of a soil wetting body. The soil moisture content is highest at the moistube, and its value is related to the moistube-specific discharge and soil texture. The soil moisture content at any point in the wetting body decreased linearly with increasing distance from the wetting front to the moistube in the five set directions (vertical downward, 45° downward, horizontal, 45° upward and vertical upward). This trend is applicable to fine-textured and coarse-textured soil. An estimation model of soil moisture content including soil saturated hydraulic conductivity, initial soil moisture, the specific flow rate of the moistube and the maximum value of the wetting front distance in all directions is proposed. The model estimation is good (root mean square error = 0.008–0.018 cm3·cm−3, close to 0; Nash-Sutcliffe efficiency coefficient = 0.987, close to 1), and it can provide a practical tool for moistube irrigation design and agricultural water management
Application of biopolymer in turbidity removal and sludge settling behaviour of travertine-processing wastewater: Performance optimization using response surface methodology (RSM)
No full textA flocculation process was performed to treat travertine-processing effluents with a high concentration of suspended solids using an eco-friendly biopolymer. The experiments were conducted through a standard jar test procedure to optimize the process parameters for sludge volume index (SVI) and turbidity removal. The effects of mixing time, suspension pH, and polymer dosage on treatment efficiency were investigated using central composite design, a standard technique in response surface methodology. The constructed response model was tested using the analysis of variance (ANOVA). Using the Design-Expert tool, the coefficients of regression models were computed. The Fischer value (F-value) was used to evaluate the significance and validity of the predicted model, while the coefficient of determination (R2) was applied to estimate the model significance by comparing the predicted data with the measured data. The optimized parameters obtained were polymer dose of 276.20 mg/L, suspension pH of 8.60, and mixing time of 4.20 min. The optimal SVI and turbidity values obtained were 1.36 mL/g and 2.99 NTU, respectively. Additionally, R2 values for SVI and turbidity were determined as 0.9337 and 0.8654, respectively. Also, the difference between adjusted R2 values and predicted R2 was less than 0.2. Validation tests showed that the response surface methodology is an effective method for optimizing the flocculation mechanism