1,083 results on '"berkeley"'
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2. The `new' South Africa.
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Berkeley, Bill
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ETHNIC relations - Abstract
Focuses on the war between the Inkatha movement and the African National Congress in the Kwazulu-Natal province of South Africa. Role of the legacy of white rule in the current conflicts; Origins of the conflict; Violence as currency of power in South Africa.
- Published
- 1996
3. Broad consent for biobank research in South Africa - Towards an enabling ethico-legal framework.
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Maseme, Mantombi, Gardner, Jillian, and Mahomed, Safia
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PERSONALLY identifiable information ,INFORMATION processing ,ACCESS to information ,HUMAN research subjects ,PARTICIPANT observation - Abstract
Broad consent is permitted by the South African National Department of Health Ethics Guidelines but appears to be prohibited by section 13(1) of the Protection of Personal Information Act 4 of 2013. Additionally, the Act mandates that all personal data (including biobank sample data) be collected for lawful, explicit, and clearly defined purposes. There is possibility for ambiguity in interpretation because of this discrepancy between the two instruments. Given the association between the transfer of samples and data, the long-term nature of biobanking, which makes it impractical to provide too much or enough information because it is simply not available at the time of sample collection, and the various ways that the Protection of Personal Information Act 4 of 2013 have been interpreted, we aim to demonstrate that South Africa's current regulatory framework should appropriately permit broad consent use for biobank research where the transfer of samples and their associated data are contemplated. In summary, the proposed amendments include removing regulatory ambiguity regarding broad consent use, ensuring adequate safeguards for research participants by specifying rules for data access and personal information processing, and incorporating consent form information requirements into the national Consent Template. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Cultural Studies with Communities in South Africa: Implications for Participatory Development Communication and Social Change Research.
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Dyll, Lauren and Tomaselli, Keyan G.
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SOCIAL change ,HERITAGE tourism ,CULTURAL studies ,GROUP identity ,LOCAL culture - Abstract
This article theorizes the role of local and indigenous culture in its intersection with development initiatives. It argues that Communication for Development and Social Change (CDSC), through a cultural studies framework, strengthens the potentiality of democratization and participation within community-based development and social change settings. We advocate that applied cultural studies can facilitate agency (through voice and self-representation) in social interventions. This is a cultural studies approach that has been recontextualised from the Birmingham origin as read through Marxist development studies, first adapted and mobilized during the anti-apartheid struggle in developing cultural strategy, and more recently with efforts to indigenise research practices with research participants in the southern Kalahari. We draw on an example of the community-owned, state-funded, and privately operated !Xaus Lodge cultural tourism asset. We illustrate how CDSC strategies, influenced by applied cultural studies, can work with an agentic imperative to effect development and mutual understanding in a defined geographical area, where multiple stakeholder agendas, cultural backgrounds, and ontologies are to be negotiated. [ABSTRACT FROM AUTHOR]
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- 2024
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5. The Warlords of Natal.
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Berkeley, Bill
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CIVIL war , *POST-apartheid era , *WARLORDISM , *APARTHEID , *ETHNIC conflict , *RACE relations ,KWAZULU-Natal (South Africa) politics & government - Abstract
The article focuses on the violence among blacks in Natal and in the townships outside Johannesburg in South Africa. According to the author, the civil war in Natal is connected to the violent history and social consequences of apartheid. The article discusses tribalism, the Inkatha Freedom Party, the Congress of Traditional Leaders of South Africa, and Natal's warlords.
- Published
- 1994
6. The occupational syndemics of miners in South Africa.
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Bulled, Nicola and Singer, Merrill
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INDUSTRIAL hygiene ,SYNDEMICS ,REPORTING of diseases ,DRUGGED driving ,WORK environment - Abstract
Occupational exposures in the large industrial mining sector contributed significantly to South Africa's high excess death rate due to COVID-19. Historically poor work-protection oversight has perpetuated centuries of risky labor and living conditions within the industry, driving high levels of disease co-morbidities, and supporting enduring social vulnerabilities. In this paper, we offer a syndemic lens to consider the clustering of adversely interacting diseases among mineworkers in South Africa, drawing attention to the complex occupational health crisis and the need to move beyond simply reporting individual diseases or comorbidities among this population. The physically demanding and dangerous working conditions, the lack of adequate changes to crowded and unsanitary working and living situations, the failure to meet social and labor plan targets, the continued precarious nature of working contracts and mines, and the limited access to robust healthcare reflect the historically exploitative nature of industrial mining in South Africa that places miners at increased risk for various syndemics. This assessment of the adverse interactions of diseases and socioeconomic and political conditions highlights the need for focused research and more follow-through in comprehensive occupational reforms. [ABSTRACT FROM AUTHOR]
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- 2024
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7. HIV and gender identity expression among transfeminine people in the Western Cape, South Africa – a thematic analysis of data from the HPTN 071 (PopART) trial.
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de Villiers, Laing, Swartz, Leslie, Bock, Peter, Seeley, Janet, Stangl, Anne L., Bond, Virginia, Hargreaves, James, and Hoddinott, Graeme
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GENDER expression ,GENDER identity ,THEMATIC analysis ,FEMININE identity ,TRANSGENDER people - Abstract
Introduction: Transfeminine people in South Africa have a high HIV risk due to structural, behavioural, and psychosocial factors. Transfeminine people and feminine identifying men who have sex with men (MSM) are often conflated or grouped with transgender or MSM categories in HIV service programming, although they don't necessarily identify as either. We aimed to investigate gender expression among feminine identifying people who were assigned male at birth. We examined how local conceptualizations of sexuality and gender intersect with the key population label of 'transgender' imported into local HIV programming. Methods: A qualitative cohort nested within the HPTN 071 (PopART) trial included longitudinal, in-depth interviews with eight transfeminine people (four who disclosed as living with HIV). Data were collected approximately every six weeks between January 2016 and October 2017. We used a combination of thematic analysis and case study descriptions to explore gender identification among participants. Results: Of the eight participants, only one accepted 'transgender' as a label, and even she used varying terms at different times to describe her identity. For participants, a feminine identity included dressing in normatively feminine clothes; using feminine terms, pronouns and names; and adopting stereotypically feminine mannerisms. Participants would switch between typically feminine and masculine norms in response to contextual cues and audience. For example, some participants accepted identification as masculine gay men amongst their family members. Among peers, they expressed their identity through typically more effeminate gender characteristics, for example self-identifying as "femgay". With partners they often also took on a feminine identity role, for example identifying as women in sexual and romantic relationships (meaning they viewed and expressed themselves as the feminine partner in the relationship). Conclusions: Our findings are amongst the first exploratory and descriptive data of transfeminine people in South Africa. We show how transfeminine people navigate fluid gender identities that could pose a challenge for accessing and utilizing HIV services that are currently set up for transgender individuals or MSM. More work needs to be done to understand and respond to the diverse and shifting ways people experience their gender identities in this high HIV burden context. [ABSTRACT FROM AUTHOR]
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- 2024
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8. Enhancing Energy Supply Reliability for University Lecture Halls Using Photovoltaic-Battery Microgrids: A South African Case Study.
- Author
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Showers, Obu Samson and Chowdhury, Sunetra
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POWER resources ,CLEAN energy ,GREENHOUSE gases ,ENERGY infrastructure ,SUSTAINABILITY ,MICROGRIDS ,ENERGY consumption - Abstract
Institutions of higher learning in South Africa are grappling with occasional power outages in lecture halls, leading to disruptions in academic activities and occasional loss of lecture hours. Therefore, this study presents a comprehensive evaluation of a grid-connected solar PV/Li-ion battery microgrid (μG) system aimed at maintaining a constant power supply to selected lecture halls at a university in the Western Cape, South Africa. The microgrid design, modelling, and simulations, conducted in the MATLAB/Simulink environment, include the solar PV, Li-ion battery, energy consumption of the lecture halls (load profile), boost converter, bidirectional converter, and grid. Using the detailed design, modelling, and simulation, the study evaluates the economic and environmental impacts of integrating μGs, focusing on enhancing energy reliability, reducing operational costs, and mitigating CO
2 emissions. The results indicate that integrating the microgrid resulted in a significant 51% reduction in energy cost and a decrease in greenhouse gas emissions by 530 kgCO2 e per hour. In Cases 2 and 4, where the battery supplied power, the annual battery degradation costs are 6.08% and 14.9% of the initial cost, respectively. The μG ensures an uninterrupted power supply and improves the overall reliability of the university's energy infrastructure. It promotes environmental sustainability goals of zero emissions and maintains continuous academic activities during grid outages. Furthermore, it fosters a conducive learning environment, supports innovation and creativity in sustainable energy technologies, and sets a standard for other higher education institutions to integrate renewable energy-powered μGs. [ABSTRACT FROM AUTHOR]- Published
- 2024
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9. Women And The Making Of The Tunisian Constitution.
- Author
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de Silva de Alwis, Rangita, Mnasri, Anware, and Ward, Estee
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CONSTITUTIONAL law ,WOMEN ,GENDER ,WOMEN'S rights ,SOCIAL & economic rights ,LAW - Published
- 2017
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10. IMA Genome – F19: A genome assembly and annotation guide to empower mycologists, including annotated draft genome sequences of Ceratocystis pirilliformis, Diaporthe australafricana, Fusarium ophioides, Paecilomyces lecythidis, and Sporothrix stenoceras
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Aylward, Janneke, Wilson, Andi M., Visagie, Cobus M., Spraker, Joseph, Barnes, Irene, Buitendag, Carla, Ceriani, Callin, Del Mar Angel, Lina, du Plessis, Deanné, Fuchs, Taygen, Gasser, Katharina, Krämer, Daniella, Li, WenWen, Munsamy, Kiara, Piso, Anja, Price, Jenna-Lee, Sonnekus, Byron, Thomas, Chanel, van der Nest, Ariska, and van Dijk, Alida
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MYCOLOGISTS ,PAECILOMYCES ,GENOMICS ,AGRICULTURAL biotechnology ,FUSARIUM ,GENOMES - Abstract
The pace at which Next Generation Sequence data is being produced continues to accelerate as technology improves. As a result, such data are increasingly becoming accessible to biologists outside of the field of bioinformatics. In contrast, access to training in the methods of genome assembly and annotation are not growing at a similar rate. In this issue, we report on a Genome Assembly Workshop for Mycologists that was held at the Forestry and Agricultural Biotechnology Institute (FABI) at the University of Pretoria, South Africa and make available the 12 draft genome sequences emanating from the event. With the aim of making the process of genome assembly and annotation more accessible to biologists, we provide a step-by-step guide to both genome assembly and annotation, intended to encourage and empower mycologists to use genome data in their research. [ABSTRACT FROM AUTHOR]
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- 2024
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11. A new Paecilomyces from wooden utility poles in South Africa.
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Visagie, C. M., Cruywagen, E. M., and Duong, T. A.
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PAECILOMYCES ,FUNGAL phylogeny ,TAXONOMY ,THERMOASCACEAE - Abstract
During a survey of fungi on electricity utility poles in South Africa, a diverse range of fungi were discovered. Paecilomyces was frequently isolated, with five species identified using ITS and β-tubulin (BenA) sequences. These were P. brunneolus, P. dactylethromorphus, P. lecythidis, P. paravariotii and a potential new species. The genomes of 30 of these strains were subsequently sequenced and used in a phylogenomic analysis with 45 previously published genomes of the genus. Phylogenetic analyses were also conducted using ITS, BenA, calmodulin (CaM), RNA polymerase II second largest subunit (RPB2), RNA polymerase II largest subunit (RPB1), the genes coding for the theta subunit of the TCP-1 chaperonin complex (Cct8), and for a putative ribosome biogenesis protein (Tsr1). Both phylogenomic and phylogenetic analyses supported the 15 Paecilomyces species currently accepted and confirmed the novelty of the new species, which we describe as P. lignorum. The latter is the sister species of P. brunneolus and belongs to a clade also containing P. variotii and P. paravariotii. Morphologically, the new species produces longer ellipsoidal conidia and grows more restricted on malt extract agar at 30 °C compared to its closest relatives. [ABSTRACT FROM AUTHOR]
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- 2024
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12. Artificial Neural Network (ANN)-Based Water Quality Index (WQI) for Assessing Spatiotemporal Trends in Surface Water Quality—A Case Study of South African River Basins.
- Author
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Banda, Talent Diotrefe and Kumarasamy, Muthukrishnavellaisamy
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ARTIFICIAL neural networks ,WATER quality ,ARTIFICIAL intelligence ,WATERSHEDS ,BODIES of water ,AFRICANA studies - Abstract
Artificial neural networks (ANNs) are powerful data-oriented "black-box" algorithms capable of assessing and delineating linear and multifaceted non-linear correlations between the dependent and explanatory variables. Through the years, neural networks have proven to be effective and robust analytical techniques for establishing artificial intelligence-based tools for modelling, estimating, and projecting spatial and temporal variations in water bodies. Accordingly, ANN-based algorithms gained increased attention and have emerged as practical alternatives to traditional approaches for hydro-chemical analysis. ANNs are among the widely used computer systems for modelling surface water quality. Considering their wide recognition, resilience, flexibility, and accuracy, the current study employs a neural network-based methodology to construct a novel water quality index (WQI) model suitable for analysing South African rivers. The feed-forward, back-propagated multilayered perceptron model has three parallel-distributed neuron layers interconnected with seventy weighted links orientated laterally from left to right. First, the input layer includes thirteen neuro-nodes symbolising thirteen explanatory variables, including NH
3 , Ca, Cl, Chl-a, EC, F, CaCO3 , Mg, Mn, NO3 , pH, SO4 , and turbidity (NTU). Second, the hidden layer consists of eleven neuro-nodes accountable for computational tasks. Lastly, the output layer features one neuron responsible for conveying network outcomes using a single-digit WQI rating extending from zero to one hundred, where zero represents substandard water quality and one hundred denotes exceptional water quality. The AI-based model was developed using water quality data obtained from six monitoring locations within four drainage basins under the management of the Umgeni Water Board in the KwaZulu-Natal Province of South Africa. The dataset comprises 416 samples randomly divided into training, testing, and validation sets using a proportional split of 70:15:15%. The Broyden–Fletcher–Goldfarb–Shanno (BFGS) technique was utilised to conduct backpropagation training and adjust synapse weights. The dependent variables are the WQI scores from the universal water quality index (UWQI) model developed specifically for South African river basins. The ANN demonstrated enhanced efficiency through an overall correlation coefficient (R) of 0.985. Furthermore, the neural network attained R-values of 0.987, 0.992, and 0.977 for the training, testing, and validation intervals. The ANN model achieved a Nash–Sutcliffe efficiency (NSE) value of 0.974 and coefficient of determination (R2 ) of 0.970. Sensitivity analysis provided additional validation of the preparedness and computational competence of the ANN model. The typical target-to-output error tolerance for the ANN model is 0.242, demonstrating an adequate predictive ability to deliver results comparable with the target UWQI, having the lowest and highest index ratings of 75.995 and 94.420, respectively. Accordingly, the three-layer neural network is scientifically sound, with index values and water quality evaluations corresponding to the UWQI results. The current research project seeks to document the processes used and the outcomes obtained. [ABSTRACT FROM AUTHOR]- Published
- 2024
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13. Exploring the Pleasures and Perils of Participant Observation in Researching Heterosexual Identities.
- Author
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Smuts, Letitia
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CISGENDER people ,PARTICIPANT observation ,HETEROSEXUALS ,HETEROSEXUALITY ,MIDDLE class ,RESEARCH personnel ,SOCIAL space - Abstract
In this paper, I investigate the benefits and potential risks associated with utilizing participant observation to gain a deeper understanding of sexual identity. Specifically, my focus is on examining how young, heterosexual, middle-class, cisgender individuals in South Africa perceive and understand their heterosexual identities, exploring how privilege and heteronormativity shape their experiences. In my ethnographic study, I employed various qualitative data collection methods, including participant observation, to analyze how normative practices were negotiated and sustained in contemporary South Africa. As a feminist researcher, I reflect on the epistemological and methodological choices I made in the study, with reflexivity and positionality playing crucial roles in data collection and analysis. Drawing on experiences in three distinct social spaces in Johannesburg—high-end nightclubs, Tupperware-style sex-toy parties, and traditional braais [barbecues]—I examine the advantages and challenges of participant observation. This paper contributes to the broader discussion on the method's use, highlighting its potential to offer a nuanced understanding of a normalized phenomenon while acknowledging associated risks. [ABSTRACT FROM AUTHOR]
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- 2024
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14. Assessing the impact of human behavior towards preventative measures on COVID-19 dynamics for Gauteng, South Africa: a simulation and forecasting approach.
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Chukwu, C. W., Tchoumi, S. Y., Chazuka, Z., Juga, M. L., and Obaido, G.
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HUMAN behavior ,COVID-19 pandemic ,COVID-19 ,STATISTICAL smoothing ,HEALTH policy - Abstract
Globally, the COVID-19 pandemic has claimed millions of lives. In this study, we develop a mathematical model to investigate the impact of human behavior on the dynamics of COVID-19 infection in South Africa. Specifically, our model examined the effects of positive versus negative human behavior. We parameterize the model using data from the COVID-19 fifth wave of Gauteng province, South Africa, from May 01, 2022, to July 23, 2022. To forecast new cases of COVID-19 infections, we compared three forecasting methods: exponential smoothing (ETS), long short-term memory (LSTM), and gated recurrent units (GRUs), using the dataset. Results from the time series analysis showed that the LSTM model has better performance and is well-suited for predicting the dynamics of COVID-19 compared to the other models. Sensitivity analysis and numerical simulations were also performed, revealing that noncompliant infected individuals contribute more to new infections than those who comply. It is envisaged that the insights from this work can better inform public health policy and enable better projections of disease spread. [ABSTRACT FROM AUTHOR]
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- 2024
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15. Two Lineages of Papillomaviruses Identified from Caracals (Caracal caracal) in South Africa.
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Kraberger, Simona, Serieys, Laurel E. K., Leighton, Gabriella R. M., De Koch, Matthew D., Munday, John S., Bishop, Jacqueline M., and Varsani, Arvind
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SNOW leopard ,PUMAS ,BOBCAT ,LIONS ,CATS ,PAPILLOMAVIRUSES - Abstract
Papillomaviruses (PV) infect epithelial cells and can cause hyperplastic or neoplastic lesions. In felids, most described PVs are from domestic cats (Felis catus; n = 7 types), with one type identified in each of the five wild felid species studied to date (Panthera uncia, Puma concolor, Leopardus wiedii, Panthera leo persica and Lynx rufus). PVs from domestic cats are highly diverse and are currently classified into three genera (Lambdapapillomavirus, Dyothetapapillomavirus, and Taupapillomavirus), whereas those from wild felids, although diverse, are all classified into the Lambdapapillomavirus genus. In this study, we used a metagenomic approach to identify ten novel PV genomes from rectal swabs of five deceased caracals (Caracal caracal) living in the greater Cape Town area, South Africa. These are the first PVs to be described from caracals, and represent six new PV types, i.e., Caracal caracal papillomavirus (CcarPV) 1–6. These CcarPV fall into two phylogenetically distinct genera: Lambdapapillomavirus, and Treisetapapillomavirus. Two or more PV types were identified in a single individual for three of the five caracals, and four caracals shared at least one of the same PV types with another caracal. This study broadens our understanding of wild felid PVs and provides evidence that there may be several wild felid PV lineages. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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16. Multi-stage ultrahigh temperature metamorphism in the lower crust of the Kaapvaal craton recorded by U–Pb ages of garnet.
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Shu, Q., Beranoaguirre, A., Albert, R., Millonig, L. J., Walters, J. B., Marschall, H. R., Gerdes, A., Hoefer, H. E., Hezel, D., and Brey, G. P.
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HIGH temperatures ,GARNET ,LOW temperatures ,FLOOD basalts ,AGE groups ,SHEAR zones - Abstract
U–Pb ages were determined by split-stream LA-SF/MC-ICPMS in garnets from UHT granulite xenoliths (Star mine, South Africa; 124 Ma). They give a considerable age range of 400 million years with well-defined maximas at 3.09, 3.01 and 2.75 Ga. The oldest peak overlaps with the changeover from tonalites to K-granites at 3.14–3.04 Ga and with zircon ages of the mid-crustal granulites of the Vredefort dome (3.1 Ga) in the wake of the 3.2 Ga collision of three terrains that compose the Witwatersrand block. Subduction (or sagduction) of the uppermost crust in an ultrahot orogen setting brought shales and greenstones to the lower crust. Ultrahigh temperature (UHT) conditions are the result of high mantle potential temperatures and self- heating by the radioactive inventory of the subducted lithologies. Metamorphism, anatexis to very high degrees and melt extraction left UHT granulites as residue. Rejuvenation of UHT conditions was brought about by Dominion Group magmatism between 3.0 and 2.95 Ga. Magmatic uprise caused intense shearing in the lower crust followed by recrystallisation of the shear zones to generate the younger garnet age group. Ventersdorp flood basalt volcanism caused similar processes at around 2.72 Ga and generated the third garnet age group. Zircon gives U–Pb ages mainly around 2.72 Ga (both literature and our own data) i.e. zircon adjusted or newly crystallized at the youngest UHT event. Only few zircon grains retained older ages up to 2.94 Ga. Still unconstrained, but very high closure temperatures (≥ 1100 °C) for the U–Pb system in garnet keep the memory of the oldest ages in UHT granulites. Such ages can only be reset by recrystallization. This way, garnet records a prolonged high-temperature history of the lower crust of the Kaapvaal craton. [ABSTRACT FROM AUTHOR]
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- 2024
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17. Lived Experiences of Intensive Care Professional Nurses Caring for COVID-19 Patients in Private Hospitals in Gauteng, South Africa: A Phenomenological Study.
- Author
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Molala, Welhemina and Downing, Charlene
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HOLISTIC medicine ,TEAMS in the workplace ,QUALITATIVE research ,PSYCHOLOGICAL distress ,PERSONAL protective equipment ,MENTAL health ,INTERVIEWING ,HOSPITALS ,JUDGMENT sampling ,LEARNING ,ANXIETY ,EXPERIENCE ,THEMATIC analysis ,NURSING services administration ,RESEARCH ,RESEARCH methodology ,QUALITY of life ,PHENOMENOLOGY ,PATIENT satisfaction ,CRITICAL care nurses ,COVID-19 pandemic ,SOCIAL isolation ,WELL-being ,SOCIAL stigma ,MENTAL depression - Abstract
Aim. To explore and describe intensive care professional nurses' experiences caring for COVID-19 patients in private hospitals in Gauteng, South Africa. Introduction. Pandemics are unique forms of disasters characterised by adverse psychological symptoms and behaviours. Literature confirms a globally increased workload during pandemics, causing emotional exhaustion and poor concentration among healthcare workers. Moreover, high mortality rates are mentioned as a cause of moral distress and moral injury to healthcare workers. South Africa was unprepared for the COVID-19 pandemic, as evidenced by overcrowded hospitals, a lack of resources, and high mortality rates. Materials and Methods. A qualitative, phenomenological, exploratory, descriptive, and contextual research design was used. The five largest private hospitals from the same hospital group in Gauteng were chosen as they were admitting many COVID-19 patients. Fifteen participants were selected through purposeful sampling. Semistructured, in-depth, individual interviews were conducted and audio-recorded, and field notes were taken from April 2022 to December 2022. The interviews were transcribed verbatim and analysed using Giorgi's approach. Results. Three themes emerged: abrupt transition from normality to the COVID-19 pandemic; experienced isolation from family, community, and nursing management; and feelings of satisfaction and gratitude for teamwork and learning. Conclusions. It is essential for nurses' holistic care to be considered along with patients' holistic care. The findings in this study could drive healthcare institutions in South Africa to respond to nurses' health, care, and support needs. Implication for Nursing Management. Nursing management should consider shorter and fewer consecutive workdays for nurses to rest and restore their energy levels. Nurse management should also provide human caring by being visible to the nurses and communicating with them. Holistic self-care practices should be included in nurses' in-service training programmes. [ABSTRACT FROM AUTHOR]
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- 2024
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18. The Reception of Bantu Divination in Modern South Africa: African Traditional Worldview in Interaction with European Thought.
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Kleinhempel, Ullrich Relebogilwe
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BLACK South Africans ,DIVINATION ,JUNGIAN psychology ,MAGIC realism (Literature) ,POETICS ,SPIRITUALISM - Abstract
Bantu African divination is firmly established in South Africa in the context of modernity and is protected, endorsed and regulated by law. It is received in the therapeutic field. Important explorations were performed in the early 20th century by psychiatrists and psychoanalysts of Jungian orientation. Their cultural, philosophical, spiritual, and academic backgrounds are relevant to this reception. Jungian thought, Spiritual Spiritism, and traditions of European philosophy of divination resonated with the experience, observation, and understanding of Bantu divination. ('Bantu' designates the cultural and linguistic realm from Cameroon and Kenya southwards). Religious-philosophical traditions, as well as the conceptualisations of 'divination' by Plutarch and Iamblichus, are preserved. The reception and appreciation of Bantu divination in South Africa emerged from it, and resonated with these European traditions of religious-philosophical thought. Out of this development a distinct 'South African modernity' emerges. A parallel reception process developed in Brazil, in the belief systems of Umbanda and Kardecism. These developments are illustrated at present in the literatures of South Africa and Brazil, specifically in Afrikaans literature, black South African poetry and its poetics, and Magic Realism in Brazilian literature. Lastly, a perspective is offered of modernity's reception by black scholars and diviners, continually interacting with Jungian psychoanalysis. [ABSTRACT FROM AUTHOR]
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- 2024
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19. Unravelling the maternal evolutionary history of the African leopard (Panthera pardus pardus).
- Author
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Morris, Declan R., McWhorter, Todd J., Boardman, Wayne S. J., Simpson, Gregory, Wentzel, Jeanette, Coetzee, Jannie, and Moodley, Yoshan
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LEOPARD ,MITOCHONDRIAL DNA ,GENETIC drift ,AFRICAN history ,NUCLEAR DNA ,GENETIC variation ,CHEETAH - Abstract
The African leopard (Panthera pardus pardus) has lost a significant proportion of its historical range, notably in north-western Africa and South Africa. Recent studies have explored the genetic diversity and population structure of African leopards across the continent. A notable genetic observation is the presence of two divergent mitochondrial lineages, PAR-I and PAR-II. Both lineages appeared to be distributed widely, with PAR-II frequently found in southern Africa. Until now, no study has attempted to date the emergence of either lineage, assess haplotype distribution, or explore their evolutionary histories in any detail. To investigate these underappreciated questions, we compiled the largest and most geographically representative leopard data set of the mitochondrial NADH-5 gene to date. We combined samples (n = 33) collected in an altitudinal transect across the Mpumalanga province of South Africa, where two populations of leopard are known to be in genetic contact, with previously published sequences of African leopard (n = 211). We estimate that the maternal PAR-I and PAR-II lineages diverged approximately 0.7051 (0.4477--0.9632) million years ago (Ma). Through spatial and demographic analyses, we show that while PAR-I underwent a mid-Pleistocene population expansion resulting in several closely related haplotypes with little geographic structure across much of its range, PAR-II remained at constant size and may even have declined slightly in the last 0.1 Ma. The higher genetic drift experienced within PAR-II drove a greater degree of structure with little haplotype sharing and unique haplotypes in central Africa, the Cape, KwaZulu-Natal and the South African Highveld. The phylogeographic structure of PAR-II, with its increasing frequency southward and its exclusive occurrence in south-eastern South Africa, suggests that this lineage may have been isolated in South Africa during the mid-Pleistocene. This hypothesis is supported by historical changes in paleoclimate that promoted intense aridification around the Limpopo Basin between 1.0--0.6 Ma, potentially reducing gene flow and promoting genetic drift. Interestingly, we ascertained that the two nuclear DNA populations identified by a previous study as East and West Mpumalanga correspond to PAR-I and PAR-II, respectively, and that they have come into secondary contact in the Lowveld region of South Africa. Our results suggest a subdivision of African leopard mtDNA into two clades, with one occurring almost exclusively in South Africa, and we identify the potential environmental drivers of this observed structure. We caution that our results are based on a single mtDNA locus, but it nevertheless provides a hypothesis that can be further tested with a dense sample of nuclear DNA data, preferably whole genomes. If our interpretation holds true, it would provide the first genetic explanation for the smaller observed size of leopards at the southernmost end of their range in Africa. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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20. South Africa And The Human Right To Water: Equity, Ecology, And The Public Trust Doctrine.
- Author
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Takacs, David
- Subjects
RIGHT to water ,CONSTITUTIONAL law ,LIBERTY ,APARTHEID ,EQUALITY - Abstract
After liberation from apartheid in 1996, South Africa’s new, progressive Constitution proclaimed: “Everyone has the right to have access to sufficient food and water.” In this paper, I analyze South Africa’s revolutionary legal vision for marrying social equity to ecology in fulfilling the right to water. South Africa’s successes and obstacles as a developing nation with few natural water sources and great water needs demonstrates the translation of aspirational ideas into functional law. This is significant not just to South Africa’s own citizens, but extends to the entire world. South Africa’s approach contains essential lessons for how to use the law to support the billion plus people around the world whose right to water remains unfulfilled, and to the million plus people who die each year from dehydration or diseases related to unclean or inadequate water supplies. South Africa’s past and future approaches to implementing the right to water will continue to shape the legal meanings of “progressive realization” within “available resources” for all economic, social and cultural human rights worldwide. I first examine South Africa’s initial, visionary laws and policies which sought to implement the human right to water. South Africa’s legal blueprint resurrected its Public Trust Doctrine, requiring the government to protect the ecological “Reserve” that nourishes the right to water. After promising beginnings, South Africa applied legally questionable policies vis-à-vis the right to water. For example, it considered the equivalent of two toilet flushes per person per day as an adequate supply of water. Furthermore, it allowed government water service providers to install prepaid water meters for the poorest of the poor, which shut off water supply without notice when water use exceeded the predetermined “adequate” supply. These policies were upheld by the globally influential South African Constitutional Court in Mazibuko v. City of Johannesburg, which this Paper argues undermined the human right to water. The Court failed to respect constitutional prescriptions to advance equity. It also failed to consider public trust responsibilities to steward the legally mandated ecological Reserve, the ultimate source of water. The Court also misconstrued the Constitution’s command to “take reasonable legislative and other measures, within its available resources, to achieve the progressive realisation of” the right to water. Judges and bureaucrats alike—in South Africa and in too many other locales—fail to see that “available resources” must include ecological resources. Failure to root the human right to water in its ecological milieu is a failure to make progress in fulfilling the human right to water. After leading the world in getting the right to water right and then wrong, South Africa has again formulated groundbreaking legal plans to realize the right to water. The nation seeks to reallocate water towards those in greatest need, and has established ambitious plans to steward the ecological Reserve that underlies the human right to water. If South Africa succeeds in implementing its new legal strategies based on the “indivisibility of water,” it will offer a blueprint for how to make the human right to water more than an empty promise through a reconfigured, visionary understanding of the Public Trust Doctrine that marries equity to ecology. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
21. Safety and immunogenicity of a subtype C ALVAC-HIV (vCP2438) vaccine prime plus bivalent subtype C gp120 vaccine boost adjuvanted with MF59 or alum in healthy adults without HIV (HVTN 107): A phase 1/2a randomized trial.
- Author
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Moodie, Zoe, Andersen-Nissen, Erica, Grunenberg, Nicole, Dintwe, One B., Omar, Faatima Laher, Kee, Jia J., Bekker, Linda-Gail, Laher, Fatima, Naicker, Nivashnee, Jani, Ilesh, Mgodi, Nyaradzo M., Hunidzarira, Portia, Sebe, Modulakgota, Miner, Maurine D., Polakowski, Laura, Ramirez, Shelly, Nebergall, Michelle, Takuva, Simbarashe, Sikhosana, Lerato, and Heptinstall, Jack
- Subjects
IMMUNE response ,HIV-1 glycoprotein 120 ,VACCINE effectiveness ,ALUM ,C++ - Abstract
Background: Adjuvants are widely used to enhance and/or direct vaccine-induced immune responses yet rarely evaluated head-to-head. Our trial directly compared immune responses elicited by MF59 versus alum adjuvants in the RV144-like HIV vaccine regimen modified for the Southern African region. The RV144 trial of a recombinant canarypox vaccine vector expressing HIV env subtype B (ALVAC-HIV) prime followed by ALVAC-HIV plus a bivalent gp120 protein vaccine boost adjuvanted with alum is the only trial to have shown modest HIV vaccine efficacy. Data generated after RV144 suggested that use of MF59 adjuvant might allow lower protein doses to be used while maintaining robust immune responses. We evaluated safety and immunogenicity of an HIV recombinant canarypox vaccine vector expressing HIV env subtype C (ALVAC-HIV) prime followed by ALVAC-HIV plus a bivalent gp120 protein vaccine boost (gp120) adjuvanted with alum (ALVAC-HIV+gp120/alum) or MF59 (ALVAC-HIV+gp120/MF59) or unadjuvanted (ALVAC-HIV+gp120/no-adjuvant) and a regimen where ALVAC-HIV+gp120 adjuvanted with MF59 was used for the prime and boost (ALVAC-HIV+gp120/MF59 coadministration). Methods and findings: Between June 19, 2017 and June 14, 2018, 132 healthy adults without HIV in South Africa, Zimbabwe, and Mozambique were randomized to receive intramuscularly: (1) 2 priming doses of ALVAC-HIV (months 0 and 1) followed by 3 booster doses of ALVAC-HIV+gp120/MF59 (months 3, 6, and 12), n = 36; (2) 2 priming doses of ALVAC-HIV (months 0 and 1) followed by 3 booster doses of ALVAC-HIV+gp120/alum (months 3, 6, and 12), n = 36; (3) 4 doses of ALVAC-HIV+gp120/MF59 coadministered (months 0, 1, 6, and 12), n = 36; or (4) 2 priming doses of ALVAC-HIV (months 0 and 1) followed by 3 booster doses of ALVAC-HIV+gp120/no adjuvant (months 3, 6, and 12), n = 24. Primary outcomes were safety and occurrence and mean fluorescence intensity (MFI) of vaccine-induced gp120-specific IgG and IgA binding antibodies at month 6.5. All vaccinations were safe and well-tolerated; increased alanine aminotransferase was the most frequent related adverse event, occurring in 2 (1.5%) participants (1 severe, 1 mild). At month 6.5, vaccine-specific gp120 IgG binding antibodies were detected in 100% of vaccinees for all 4 vaccine groups. No significant differences were seen in the occurrence and net MFI of vaccine-specific IgA responses between the ALVAC-HIV+gp120/MF59-prime-boost and ALVAC-HIV+gp120/alum-prime-boost groups or between the ALVAC-HIV+gp120/MF59-prime-boost and ALVAC-HIV+gp120/MF59 coadministration groups. Limitations were the relatively small sample size per group and lack of evaluation of higher gp120 doses. Conclusions: Although MF59 was expected to enhance immune responses, alum induced similar responses to MF59, suggesting that the choice between these adjuvants may not be critical for the ALVAC+gp120 regimen. Trial registration: HVTN 107 was registered with the South African National Clinical Trials Registry (DOH-27-0715-4894) and ClinicalTrials.gov (NCT03284710). Zoe Moodie and colleagues investigate the safety and immunogenicity of a subtype C ALVAC-HIV vaccine prime plus bivalent subtype C gp120 vaccine boost adjuvanted with MF59 or alum in healthy adults without HIV. Author summary: Why was this study done?: Vaccines may use an adjuvant to help the body produce a stronger immune response. Results from animal studies suggested that the MF59 adjuvant generates better immunogenicity than the alum adjuvant when given as part of an HIV vaccine and could also allow a lower dose of protein to be used. Our clinical trial was done to directly assess in humans whether MF59 leads to better immune responses than alum when given with protein in a subtype C canarypox vaccine (ALVAC-HIV) prime followed by ALVAC-HIV plus a bivalent gp120 protein vaccine boost (gp120). What did the researchers do and find?: Vaccines were safe and well-tolerated over the 18 months of follow-up. 100% of vaccinees had vaccine-specific gp120 IgG binding antibodies at month 6.5. Immune responses for the ALVAC-HIV+gp120/MF59 group and the ALVAC-HIV+gp120/alum group were similar. What do these findings mean?: Contrary to expectation, the choice between MF59 and alum does not seem critical to the immune responses assessed in the peripheral blood for this subtype C ALVAC-HIV+gp120 prime-boost regimen. The main limitations of our study were the small vaccine group sample sizes and that higher doses of gp120 protein were not evaluated. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. African Jewish Communities in the Diaspora and the Homeland: The Case of South Africa.
- Author
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Raijman, Rebeca
- Subjects
JEWISH diaspora ,JEWISH communities ,SOUTH Africans ,JEWISH identity ,AMERICAN Jews ,JEWS - Abstract
As part of this Special Issue devoted to research on the Jewish communities in Africa and their diaspora, we focus on the case of South African Jews who emigrated to Israel. First, we analyze the socio-religious and cultural context in which a Jewish diaspora developed and marked the ethno-religious identity of South African Jews both as individuals and as a collective. Second, we examine the role of ethno-religious identification as the main motive for migrating to Israel, and third, we show the role of ethno-religious identity in the integration of South African Jews into Israeli life. This study relies on data from a survey of South Africans and their descendants living in Israel in 2008, and in-depth interviews. The findings provide evidence for a strong Jewish community in South Africa that created a strong sense of belonging to the Jewish people and a strong attachment to Israel. As expected, two of the key reasons for the decision to move to Israel were ideology and religion. The immigrants wanted to live in a place where they could feel part of the majority that was culturally and religiously Jewish. Finally, ethno-religious identities (Jewish and Zionist) influenced not only the decision making of potential immigrants but also their process of integration into Israeli life. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
23. Ubuntu in Post-Apartheid South Africa: Educational, Cultural and Philosophical Considerations.
- Author
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Patel, Mahmoud, Mohammed, Tawffeek A. S., and Koen, Raymond
- Subjects
THREATS of violence ,WORKING class ,POLITICAL parties ,APARTHEID ,TERRITORIAL partition ,HUMAN beings ,IDEOLOGY ,AFRICAN philosophy - Abstract
Ubuntu has been defined as a moral quality of human beings, as a philosophy or an ethic, as African humanism, and as a worldview. This paper explores these definitions as conceptual tools for understanding the cultural, educational, and philosophical landscape of post-apartheid South Africa. Key to this understanding is the Althusserian concept of state apparatus. Louis Althusser divides the state apparatus into two forces: the repressive state apparatus (RSA); and the ideological state apparatus (ISA). RSAs curtail the working classes, predominately through direct violence or the threat of violence, whereas ISAs function primarily by ideology, including forms of organised religion, the education system, family units, legal systems, trade unions, political parties, and media. This paper discusses the link between increasing inequality in post-apartheid South Africa and education, with specific reference to Althusser's ISAs and the abuse of Ubuntu as a subterfuge for socio-economic inequality. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
24. Individual Tree-Scale Aboveground Biomass Estimation of Woody Vegetation in a Semi-Arid Savanna Using 3D Data.
- Author
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Muumbe, Tasiyiwa Priscilla, Singh, Jenia, Baade, Jussi, Raumonen, Pasi, Coetsee, Corli, Thau, Christian, and Schmullius, Christiane
- Subjects
BIOMASS estimation ,SAVANNAS ,ALLOMETRIC equations ,SAVANNA ecology ,WOOD density - Abstract
Allometric equations are the most common way of assessing Aboveground biomass (AGB) but few exist for savanna ecosystems. The need for the accurate estimation of AGB has triggered an increase in the amount of research towards the 3D quantification of tree architecture through Terrestrial Laser Scanning (TLS). Quantitative Structure Models (QSMs) of trees have been described as the most accurate way. However, the accuracy of using QSMs has yet to be established for the savanna. We implemented a non-destructive method based on TLS and QSMs. Leaf-off multi scan TLS point clouds were acquired in 2015 in Kruger National Park, South Africa using a Riegl VZ1000. The 3D data covered 80.8 ha with an average point density of 315.3 points/m
2 . Individual tree segmentation was applied using the comparative shortest-path algorithm, resulting in 1000 trees. As 31 trees failed to be reconstructed, we reconstructed optimized QSMs for 969 trees and the computed tree volume was converted to AGB using a wood density of 0.9. The TLS-derived AGB was compared with AGB from three allometric equations. The best modelling results had an RMSE of 348.75 kg (mean = 416.4 kg) and a Concordance Correlation Coefficient (CCC) of 0.91. Optimized QSMs and model repetition gave robust estimates as given by the low coefficient of variation (CoV = 19.9% to 27.5%). The limitations of allometric equations can be addressed by the application of QSMs on high-density TLS data. Our study shows that the AGB of savanna vegetation can be modelled using QSMs and TLS point clouds. The results of this study are key in understanding savanna ecology, given its complex and dynamic nature. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF
25. Effectiveness of Mnemonic Instruction in Enhancing of Reading Ability Among Grade Three Learners with Dyslexia in Two Primary Schools in South Africa.
- Author
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Zindoga, Lilian and Aloka, Peter J. O.
- Subjects
PRIMARY schools ,DYSLEXIA ,READING comprehension ,COMPREHENSION testing ,REINFORCEMENT (Psychology) - Abstract
The current study assessed the efficacy of the mnemonic instruction (MI) in enhancing reading abilities among grade three learners with reading disability in two government schools (grade R to 7) in Mpumalanga, South Africa. Skinner's reinforcement and the Information Processing theories were employed. A research method used to estimate causal relationships without random assignment was used. One of the two schools was an intervention and the other one was a control one. 43 participants were included in the study from the two selected schools using purposive sampling technique. 23 parents (from the intervention school) participated in the questionnaires. The Bangor Dyslexia Test (BDT), pre- and post-tests, and a reading comprehension test were the tools used to collect data. The results revealed that there were statically substantial differences between the assessment scores administered before and after treatment for the experimental group, t (22) = -10.753; p <.001, suggesting that mnemonic instruction is highly effective in enhancing reading abilities among primary school LWD. This investigation advocates that the Department of Basic Education should revise the policy that reading is tested from grade one, instead of from grade three, that those who are not able to read do not proceed until and unless they are able to read, and to train teachers on how to use various approaches to enhance reading abilities, including mnemonic techniques. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. A changing cast: reflections on the history of antisemitism in South Africa.
- Author
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Shain, Milton
- Subjects
ANTISEMITISM ,STEREOTYPES ,JEWISH question ,CONSPIRACY theories ,APARTHEID ,DEMOCRACY ,WHITE supremacy - Abstract
The article reflects on the history of antisemitism in South Africa. Topics discussed include anti-alienism that emanated from the white English-speaking merchant class and rural Afrikaners, anti-Jewish stereotype, emergence of the Jewish Question on the public agenda that raised issues of Jewish conspiracy and antisemitism, apartheid project of the National Party, South Africa's road to non-racial democracy and opposition of white supremacists, and ebb and glow of antisemitism.
- Published
- 2024
- Full Text
- View/download PDF
27. Demand-Side Management as a Network Planning Tool: Review of Drivers, Benefits and Opportunities for South Africa.
- Author
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Ratshitanga, Mukovhe, Mataifa, Haltor, Krishnamurthy, Senthil, and Tshinavhe, Ntanganedzeni
- Subjects
ENERGY demand management ,SUPPLY & demand ,ELECTRIC power consumption ,POWER resources ,ELECTRIC power distribution grids ,ELECTRIC power production - Abstract
The reliability and security of an electric power supply have become pivotal to the proper functioning of modern society. Traditionally, the electric power supply system has been designed with the objective of being able to adequately meet present and future demand, with efforts to maintain supply reliability being focused primarily on the supply side. Over the decades, however, the value of demand-side management—efforts focused on enhancing the efficient and effective use of electricity in support of the power system and customer needs—has been widely acknowledged as being able to play a greater role in ensuring that the key objectives of power system operation are satisfied. This article presents a study of demand-side management and opportunities for incorporating it into network planning as an effective means of addressing supply capacity constraints in the South African electric grid. The main drivers, benefits and potential barriers to the effective implementation of demand-side management are examined, along with the main enabling technologies. The key finding of the study is that the effective integration of demand-side management into network planning requires a shift from the traditional network planning approach to one that is more suited to fully exploiting the flexibility resources available on the demand side of the network. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
28. Self-Representation of Marginalized Groups: A New Way of Thinking through W. E. B. Du Bois.
- Author
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Chowdhury, Rashedur
- Subjects
STAKEHOLDER theory ,BUSINESS ethics ,RESEARCH ethics ,ORGANIZATION management - Abstract
I address an interesting puzzle of how marginalized groups gain self-representation and influence firms' strategies. Accordingly, I examine the case of access to low-cost HIV/AIDS drugs in South Africa by integrating W. E. B. Du Bois's work into stakeholder theory. Du Bois's scholarly work, most notably his founding contribution to Black scholarship, has profound significance in the humanities and social sciences disciplines and vast potential to inspire a new way of thinking and doing research in the management and organization fields, including business ethics research. By drawing on Du Bois's works, I argue that through reconstruction of their selves—knowing their souls—marginalized groups know their capabilities better, enabling them to overcome their political and strategic limitations and ensure their true self-representation. They are also empowered to use political imagination and strategies of resistance against more powerful opponents. This influences powerful actors to accept the demands of marginalized groups. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
29. Chemically speciated air pollutant emissions from open burning of household solid waste from South Africa.
- Author
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Wang, Xiaoliang, Firouzkouhi, Hatef, Chow, Judith C., Watson, John G., Ho, Steven Sai Hang, Carter, Warren, and De Vos, Alexandra S. M.
- Subjects
EMISSIONS (Air pollution) ,SOLID waste ,INCINERATION ,CARBONACEOUS aerosols ,CARBON-based materials ,POLLUTION source apportionment ,HYDROGEN fluoride ,COMBUSTION gases - Abstract
Open burning of household solid waste is a large source of air pollutants worldwide, especially in the Global South. However, waste burning emissions are either missing or have large uncertainties in local, regional, or global emission inventories due to limited emission factor (EF) and activity data. Detailed particulate matter (PM) chemical speciation data are even less available. This paper reports source profiles and EFs for PM 2.5 species as well as acidic and alkali gases measured from laboratory combustion of 10 waste categories that represent open burning in South Africa. Carbonaceous materials contributed more than 70 % of PM 2.5 mass. Elemental carbon (EC) was most abundant from flaming materials (e.g., plastic bags, textiles, and combined materials), and its climate forcing exceeded the corresponding CO 2 emissions by a factor of 2–5. Chlorine had the highest EFs among elements measured by X-ray fluorescence (XRF) for all materials. Vegetation emissions showed high abundances of potassium, consistent with its use as a marker for biomass burning. Fresh PM 2.5 emitted from waste burning appeared to be acidic. Moist vegetation and food discards had the highest hydrogen fluoride (HF) and PM fluoride EFs due to fluorine accumulation in plants, while burning rubber had the highest hydrogen chloride (HCl) and PM chloride EFs due to high chlorine content in the rubber. Plastic bottles, plastic bags, rubber, and food discards had the highest EFs for polycyclic aromatic hydrocarbons (PAHs) and nitro-PAHs as well as their associated toxicities. Distinct differences between odd and even carbon preferences were found for alkanes from biological and petroleum-based materials: dry vegetation, paper, textiles, and food discards show preference for the odd-numbered alkanes, while the opposite is true for plastic bottles, plastic bags, and rubber. As phthalates are used as plasticizers, their highest EFs were found for plastic bottles and bags, rubber, and combined materials. Data from this study will be useful for health and climate impact assessments, speciated emission inventories, source-oriented dispersion models, and receptor-based source apportionment. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
30. Pantoea bathycoeliae sp. nov and Sodalis sp. are core gut microbiome symbionts of the two-spotted stink bug.
- Author
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Fourie, Arista, Venter, Stephanus N., Slippers, Bernard, and Fourie, Gerda
- Subjects
STINKBUGS ,GUT microbiome ,SAP (Plant) ,BACTERIAL diversity ,BACTERIAL population ,FUNCTIONAL analysis ,MACADAMIA - Abstract
Stink bug species (Pentatomoidea superfamily) have developed an interdependence with obligate bacterial gut symbionts in specialized midgut crypts (M4 sub-region). Species of the Enterobacteriaceae family (predominantly Pantoea) are vertically transferred to their offspring and provide nutrients that cannot be obtained from plant sap food sources. However, the bacteria in the other gut compartments of stink bugs have rarely been investigated. The two-spotted stink bug, Bathycoelia distincta, is a serious pest of macadamias in South Africa. Nothing is currently known regarding its gut microbiome or how symbionts are transferred between insect generations. In this study, the consistency of B. distincta gut bacteria across geographic locations and life stages was determined with 16S rRNA metabarcoding, considering both the M4 and other gut compartments. A novel Pantoea species was found to be the primary M4 gut symbiont and is vertically transferred to the offspring. The other gut compartments had a low bacterial diversity and genera varied between stink bug populations but a Sodalis species was prominent in all populations. Sequence data of the M4 compartment were used to produce high-quality metagenome-assembled genomes (MAGs) for the Pantoea and Sodalis species. Functional analyses suggested a similar role in nutrient provision for the host, yet also unique metabolites produced by each species. The Sodalis sp. also had additional traits, such as secretion systems, that likely allowed it to establish itself in the host. The Pantoea species was described as Pantoea bathycoeliae sp. nov based on the rules of the SeqCode. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
31. The body politic and the political body in nationalist science: Physical education at Stellenbosch University in the 1930s.
- Author
-
Daries, Anell and Swart, Sandra
- Subjects
SCIENCE education ,CORPORATE culture ,PHYSICAL education ,DIPLOMAS (Education) ,PERIODIC health examinations - Abstract
Stellenbosch University (SU) was the first university in Africa to introduce a dedicated physical education certificate course in 1937. In defining the Physical Education Department's raison d'etre, the first head of the department, Dr Ernst Jokl, declared that his main aim was to transform SU into the recognised centre for scientific physical education in South Africa. Beyond this purpose, the institutionalisation of physical education resonated with the institution's Afrikaner-nationalist ethos. At the volksuniversiteit, standardised physical education was intended to contribute to the strengthening of the corporate and individual Afrikaner body. While Jokl played a pivotal role in the establishment of standardised physical education at SU, his tenure was abruptly terminated following controversy surrounding medical examinations of female physical education students. In examining the events that led up to Jokl's swift departure, we explore the origins of physical education at SU and the ways in which the university's institutional culture shaped the trajectory of this nascent discipline. In essence, we argue that Jokl's exit was precipitated by his 'scientific methods' that required students to undress for their medical inspections. While all the students underwent the same examination, the uproar was rooted in the fact that women students were subjected to the inspections. While he argued that his approach was an extension of his scientific endeavours, Jokl transgressed the traditionalist and strongly gendered values of SU and the idealised Afrikaner nation that it sought to both represent and shape. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
32. Sangomas on the Pulpit: Syncretistic Practices of Some Pastors in Neo-Pentecostal Ministries in South Africa.
- Author
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Kgatle, Mookgo Solomon and Ngubane, Simesihle Eric
- Subjects
CLERGY ,RELIGIOUS leaders ,PARTICIPANT observation ,CHRISTIANITY ,RELIGIONS - Abstract
This article builds on and contributes to work in the field of syncretism in some neo-Pentecostal ministries. While some studies have investigated the increasing syncretistic practices within certain neo-Pentecostal groups, there has been a lack of emphasis on the similarities and differences between sangomas who strictly follow African Indigenous Religion and sangomas who are spiritual leaders in certain ministries. In certain neo-Pentecostal ministries, sangomas have risen to leadership roles, even founding their congregations. The rapid growth or trend of sangomas on the pulpit is sometimes characterised by condemnation and hostility against "born-again" Christians. Sangomas, who are usually prophets or pastors, attempt to ascertain that the "born-again" have lost their identities because they believe in Western theologies. This article draws strongly on the concept of syncretism as the theoretical framework. Employing the evidence provided in the literature through a literary analysis, this article intends to examine and expose the current trends of syncretism. This article also uses a few cases of neo-Pentecostal ministers who have adopted sangomic practices in their pulpits. Some of the practices were observed by the authors through the participant observation method. Accordingly, it will further identify the failure of westernised Christianity, which was one of the stumbling blocks for Christianity to be integrated into the indigenous historical tradition. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
33. Reinterpreting the Historical Memory of the Black Peril in South Africa.
- Author
-
Majavu, Mandisi
- Subjects
COLLECTIVE memory ,BLACK people ,APARTHEID ,WHITE men ,BLACK men ,WHITE women - Abstract
This article employs a critical Black Atlantic frame to re-examine, re-evaluate and reinterpret the historical memory of the Black Peril in South Africa. It exposes the Black Peril as a wide-ranging racist discourse that demonised Black men as potential rapists of white women. This racist narrative was vehemently expressed in early twentieth-century South Africa. A key finding of this work is that the Black Peril was a highly successful racist campaign because it not only led to the criminalisation of interracial sex between Black men and white women but was also used to justify racist laws that had far-reaching effects on social relations in the broader society – eventually yielding a white supremacist state (apartheid) – which proceeded to use the Black Peril discourse to mobilise an aggressive racialisation process for both whites and Blacks. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
34. Adult education as care work in a South African prison: the role of adult educators.
- Author
-
Daniels, Doria
- Subjects
ADULT education ,ADULT learning ,TRANSFORMATIVE learning ,EDUCATORS ,EDUCATIONAL benefits ,PRISON release ,ADULTS - Abstract
The 2000s saw a change in South Africa's Department of Correctional Services' theorising about adult education's potential to shift incarcerated men's thinking about their future in a proactive way. The plan was to advance active citizenship in the incarcerated. As such, the Department of Correctional Services (DCS) introduced holistic, integrated adult educational programmes at twelve of its prisons. Although the policy and scaffolding aspects of AET (Adult Education and Training) received extensive attention, limited research was done to understand the situational and institutional challenges that adult learning centres are presented with, and how institutional culture impacts on the successful implementation of policy. The contributions that adult educators make in advancing transformative learning in adult learning centres, often go unacknowledged because they are seldom the focus of educational research. This article reports on a case study of a successful prison-based adult learning centre. It explores the adult learner-AET educator relationship, specifically the role that educators play in fostering transformational change in such students' lives, through education. The data were generated through semi-structured interviews with students, their educators and the ALC's (Adult Learning Centres) manager, as well as through observations in the prison setting. The findings show that there are strategic employees within the prison environment who resisted the educational opportunities available to incarcerated students. This hostility presented with unique institutional and situational challenges that work against the adult students' participation and success. However, through facilitation and reflective mediation, the educators established an educationally viable environment in which their students could accumulate cultural and social capital to benefit their educational journeys whilst incarcerated, and their chances of success once released from prison. The educators' actions resembled a caring pedagogy that was based on social justice principles. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
35. Quaternary rodents of South Africa: A companion guide for cranio-dental identification.
- Author
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Linchamps, Pierre, Avery, D. Margaret, Cornette, Raphaël, Denys, Christiane, Matthews, Thalassa, and Stoetzel, Emmanuelle
- Subjects
RODENTS ,BIRD pellets ,DENTAL materials ,ARCHAEOLOGICAL excavations ,OWLS ,MURIDAE - Abstract
Rodentia is the most species-rich order among mammals. The Republic of South Africa harbours a high rodent diversity whose taxonomy and phylogeny have been extensively studied using genetic tools. Such advances have led to the establishment of new faunal lists for the country. Because rodents are frequently recovered from archaeological cave site material and owl pellets, and constitute prime material for studying both past and present environmental conditions, it is necessary to characterize their osteological remains. The skull and teeth are the most useful diagnostic skeletal elements preserved in modern and fossil accumulations. This key provides updated craniodental criteria for identifying rodent genera found in Quaternary deposits, and modern material from the Republic of South Africa, thus facilitating research on past and present rodent diversity. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
36. Neutron activation of stable isotopes in soil and groundwater from a radionuclide production facility, South Africa.
- Author
-
Marazula T, Malaza NM, Conradie JL, and Beukes P
- Subjects
- South Africa, Soil chemistry, Soil Pollutants, Radioactive analysis, Radioisotopes analysis, Neutron Activation Analysis, Neutrons, Isotopes analysis, Groundwater chemistry, Groundwater analysis, Water Pollutants, Radioactive analysis, Radiation Monitoring methods
- Abstract
The neutron activation of stable isotopes in environmental matrices, such as soil and groundwater, is a critical aspect of assessing the impact of radionuclide production facilities on the surrounding ecosystem. The envisioned Low-Energy Radioactive Ion Beams (LERIB) facility at the iThemba LABS, South Africa is anticipated to generate significant sources of ionising radiation. The study investigated the possible repercussions of neutron irradiation stemming from the facility, focusing on the activation of stable isotopic compositions in the environment. The investigation employed a combination of experimental and analytical techniques to characterize the neutron activation products in soil and groundwater samples collected from the vicinity. Samples were collected from designated areas for background radiological measurements and were irradiated with neutrons for a period of 1 h. The induced radioactivity measured by the High Purity Germanium detector included
24 Na,22 Na,54 Mn,52 Mn, and46 Sc. The application of Darcy's law for groundwater velocity suggests that radionuclides in groundwater will migrate at an average flow velocity of 0.8 m/day. The isotopes with longer half-lives have count rates at background concentrations; therefore, environmental impacts on the site and surrounding communities might be minimal., Competing Interests: The authors declare there is no conflict., (© 2024 The Authors This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/).)- Published
- 2024
- Full Text
- View/download PDF
37. Calendar of Events.
- Subjects
CONFERENCES & conventions ,ANNUAL meetings ,MATHEMATICS ,ELECTRONICS - Abstract
A calendar of events related to the computing industry is presented. From July 20 to 22, 1981, the Seventh South African Symposium on Numerical Mathematics will be held in Durban, South Africa. The International Electrical, Electronics Conference and Exposition will be held from October 5 to 7, 1981 in Toronto, Ontario. The Annual Meeting of the American Mathematical Society will be conducted from January 5 to 6, 1981 in San Francisco, California.
- Published
- 1980
38. Multi-proxy speleothem-based reconstruction of mid-MIS 3 climate in South Africa.
- Author
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Maccali, Jenny, Meckler, Anna Nele, Lauritzen, Stein-Erik, Brekken, Torill, Rokkan, Helen Aase, Fernandez, Alvaro, Krüger, Yves, Adigun, Jane, Affolter, Stéphane, and Leuenberger, Markus
- Subjects
SPELEOTHEMS ,OXYGEN isotopes ,FLUID inclusions ,STABLE isotopes ,RAINFALL ,NATURE reserves - Abstract
The southern coast of South Africa displays a highly dynamical climate as it is at the convergence of the Atlantic and Indian oceans, and it is located near the subtropical/temperate zone boundary with seasonal influence of easterlies and westerlies. The region hosts some key archeological sites with records of significant cognitive, technological and social developments. Reconstructions of the state and variability of past climate and environmental conditions around sites of archeological significance can provide crucial context for understanding the evolution of early humans. Here we present a short but high-resolution record of hydroclimate and temperature in South Africa. Our reconstructions are based on trace elements, calcite and fluid inclusion stable isotopes, as well as fluid inclusion microthermometry, from a speleothem collected in Bloukrantz cave, in the De Hoop Nature Reserve in the southern Cape region of South Africa. Our record covers the time period from 48.3 to 45.2 ka during marine isotope stage 3. Both δ18 O c and δ13 C c show strong variability and covary with Sr/Ca. This correlation suggests that the control on these proxies originates from internal cave processes such as prior carbonate precipitation, which we infer to be related to precipitation amount. The hydroclimate indicators furthermore suggest a shift towards overall drier conditions after 46 ka, coincident with cooling in Antarctica and drier conditions in the eastern part of South Africa corresponding to the summer rainfall zone (SRZ). Fluid inclusion-based temperature reconstructions show good agreement between the oxygen isotope and microthermometry methods, and results from the latter display little variation throughout the record, with reconstructed temperatures close to the present-day cave temperature of 17.5 ∘ C. Overall, the BL3 speleothem record thus suggests relatively stable temperature from 48.3 to 45.2 ka, whereas precipitation was variable with marked drier episodes on sub-millennial timescales. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
39. A critical review of the Zimbabwe special temporary residence permits, 2010–2021.
- Author
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Maziyanhanga, Zvikomborero and Majavu, Mandisi
- Subjects
WHITE South Africans ,RETURN migration ,FOREIGN workers ,EUGENICS ,DWELLINGS - Abstract
This article reviews the Zimbabwe special temporary residence permits to demonstrate how these permits have, over the past 13 years, been used to limit Zimbabwean migrants from accessing permanent residency and South African citizenship. For instance, we illustrate in this article how the Zimbabwe special temporary residence permits effectively marked Zimbabweans as perpetual outsiders with no rights to reside indefinitely in South Africa, even though some Zimbabwean migrants have been living in the country on an ongoing basis for the past two decades. The Zimbabwe special temporary residence permits keep Zimbabwean migrants in a 'temporary migration status' as 'guest workers' who are expected to eventually 'go back home'. We further argue that although the Zimbabwe special temporary residence permits are not racist tools per se, they are exclusionary tools that embody analogous, exclusionary and othering logic as the twentieth-century migrant labour system that the White South African government used to banish all Blacks from the category of citizenship. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
40. Comparative Life Cycle Assessment of Different Portland Cement Types in South Africa.
- Author
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Ige, Oluwafemi E. and Olanrewaju, Oludolapo A.
- Subjects
PRODUCT life cycle assessment ,PORTLAND cement ,FLY ash ,RAW materials ,OZONE layer depletion ,MINES & mineral resources ,RESOURCE exploitation - Abstract
Cement has long been recognized as an energy- and emission-intensive construction material. Cement production has recently experienced significant growth despite its high energy consumption, resource usage, and carbon emissions. This study aims to assess and compare the life cycle assessment (LCA) of traditional Portland cement (CEM I) to those of three blended cement types (CEM II/B-L, CEM II/B-V, and CEM III/A), which assume mature technologies for reducing carbon emissions in South Africa, using LCA in compliance with ISO/TS 14071 and 14072. As its scope, the study employs the "cradle to gate" method, which considers the raw materials, fuel usage, electricity, transportation, and clinkering stages, using 1 kg of cement as the functional unit. The LCA analyses were performed using SimaPro 9.1.1.1 software developed by PRé Consultants, Amersfoort, Netherlands and impact assessments were conducted using the ReCiPe 2016 v1.04 midpoint method in order to compare all 18 impact categories of 1 kg of cement for each cement type. The assessment results show reductions in all impact categories, ranging from 7% in ozone depletion and ionizing radiation (CEM II/B-L) to a 41% reduction in mineral resource scarcity (CEM III/A). The impacts of global warming were reduced by 14% in the case of CEM II/B-L, 29% in the case of CEM II/B-V and 35% in the case of CEM III/A. The clinkering process was identified as the primary cause of atmospheric impacts, while resource depletion impacts were attributed to raw materials, fuels, and electricity processes, and toxicity impacts were primarily caused by raw materials. Alternative materials, like fly ash and ground granulated blast furnace slag (GGBFS), can significantly help to reduce environmental impacts and resource consumption in the cement industry. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
41. Automation of Low-Voltage Distribution Grids Using SDNS in South Africa.
- Author
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Fakude, Noah Sindile and Ogudo, Kingsley
- Subjects
ENERGY demand management ,SMART meters ,ELECTRIC power distribution grids ,AUTOMATION ,LOW voltage systems - Abstract
A distribution grid is the dispatching part of the power grid where electricity is finally utilized by the end users. In the electricity industry, automation habitually means the smart grid. The SG is a broad topic with different elements working towards grid optimization. One best way of optimizing a power grid is to balance the electricity supply and usage. This paper proposes an automated approach and presents a coordinative concept to develop a real-time interfacing network for demand-side management mitigations. The SDNS network concept uses a master–slave metering hierarchy to coordinate the devices between the utility and the end users by regulating the electrons' movement from the utility to the consumer's side. This concept was tested on MATLAB and a prototype. The results proved the efficiency of this design in demand-side management. The SDNS is an innovative tech, and it also plays a vital role in making consumers role players in easing the grid. The results proved that load management could replace load shedding by correctly implementing the SDNS concept. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
42. Resilience and Resistance Among Migrant Male Domestic Workers in South Africa.
- Author
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du Toit, David
- Subjects
HOUSEHOLD employees ,IMMIGRANTS ,NAVIGATION ,MATERIALS - Abstract
Despite the large body of scholarly research that has addressed the various challenges encountered by female domestic workers, there exists a notable gap in understanding the experiences of male domestic workers in South Africa. The present study seeks to bridge this gap by exploring the experiences of ten black African migrant male domestic workers in Johannesburg. Drawing upon Katz’s framework of disaggregated agency, encompassing resilience, reworking, and resistance strategies, the study demonstrates that in the absence of collective resistance through unionisation, male domestic workers employ resilience and reworking strategies to improve their material well-being. Decision-making processes regarding migration to South Africa, engaging in job-hopping, and engaging in multiple piece jobs are examples of the resilience and reworking strategies used by male domestic workers to improve their living conditions. This study shows that paid domestic work in South Africa, whether performed by men or women, is not without challenges, but that male domestic workers exhibit agency by utilising various strategies to navigate and mitigate some of these challenges. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
43. The holotype of the basal archosauromorph Prolacerta broomi revisited.
- Author
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SOBRAL, GABRIELA
- Subjects
FOSSIL reptiles ,CLADISTIC analysis ,SKULL morphology ,SQUAMATA ,ACCESS to information - Abstract
Prolacerta broomi is one of the most important of fossil reptiles. First considered as one of the earliest members of squamates, this basal archosauromorph has been used as a model for diapsid morphological evolution ever since its discovery, playing a pivotal role in hypotheses on the origin of diapsid reptiles. The holotype of Prolacerta broomi (UCMZ 2003.41R) is known from a mostly complete skull, but the original description is limited to the superficial features of the skull roof and palate. Since then, many other specimens of Prolacerta broomi have been recovered that potentially account for this limited access to anatomical information, but it remains unclear whether these aspects correspond well to the known material of the holotype. Here, the skull morphology of the holotype of Prolacerta broomi is revisited through the use of µCT scans. The identifications of some cranial elements have been corrected, such as the left prefrontal and lacrimal, and several new elements are revealed, including the epi- and ectopterygoids, prearticular, coronoid, and braincase bones. The orbitonasal region is described in detail and significantly shows a contribution of the lacrimal to the dorsal alveolar canal. Finally, the addition of the holotype as an independent OTU in recently published analyses indicate conflicts with the current knowledge on Prolacerta broomi phylogenetic affinity and taxonomy. First, it points to potential taxonomic inconsistency since the holotype does not form a monophyletic group with other Prolacerta broomi OTUs in any of the analyses and, second, it suggests a more basal position for the holotype than that recovered in some studies, more basal than rhynchosaurs and close to the origin of Crocopoda. Together, these findings indicate areas of future research interest in the study of early evolving archosauromorphs. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
44. The impact of non-communicable diseases on employment status in South Africa.
- Author
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Lawana, Nozuko, Kapingura, Forget Mingiri, and Tsegaye, Asrat
- Subjects
NON-communicable diseases ,WOMEN'S employment ,LOGISTIC regression analysis ,PANEL analysis ,NATIONAL income ,BONDS (Finance) - Abstract
The study examines the impact of non-communicable diseases (NCDs) and employment status in South Africa utilising the National Income Dynamics Study longitudinal data from 2008 to 2017. The Generalized Linear Latent and Mixed Methods (GLLAMM) were employed to fit the multinomial logit model with correlated random intercept over panel multinomial logit without random effects to control for unobserved heterogeneity between individuals or intercepts. The empirical results indicate that the significant impact of NCDs on employment status differs by gender. NCDs were found to be most threatening to women employment status. The odds of women being economically inactive in the labour market are highly associated with NCDs. Further, having multiple NCDs also significantly increases the women's probability of being economically inactive population relative to being employed. The results highlight the necessity for undertaking a massive awareness campaign regarding the prevention and control of NCDs, especially among women. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
45. Deception and informed consent in studies with incognito simulated standardized patients: empirical experiences and a case study from South Africa.
- Author
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Daniels, Benjamin, Boffa, Jody, Kwan, Ada, and Moyo, Sizulu
- Subjects
INFORMED consent (Medical law) ,SIMULATED patients ,PATIENTS' attitudes ,MEDICAL personnel ,DECEPTION ,MEDICAL quality control - Abstract
Simulated standardized patients (SPs) are trained individuals who pose incognito as people seeking treatment in a health care setting. With the method's increasing use and popularity, we propose some standards to adapt the method to contextual considerations of feasibility, and we discuss current issues with the SP method and the experience of consent and ethical research in international SP studies. Since a foundational discussion of the research ethics of the method was published in 2012, a growing number of studies have implemented this method to collect data on the quality of care in a variety of settings around the world. We draw from that experience to provide empirical foundations for a popular approach to ethical approval of such studies in the United States and Canada, which has been to obtain a waiver of informed consent from the health care providers who are the subjects of the research. However, the majority of studies to date have evaluated quality of care outside the U.S., requiring additional ethical consideration when partnering with international institutions. We discuss these considerations in the context of a case study from a completed SP study in South Africa, where informed consent is constitutionally protected. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
46. ECHOES FROM THE MOTHERLAND: HERITAGE LANGUAGE TRANSMISSION WITHIN THE MALAWIAN COMMUNITY IN SOUTH AFRICA.
- Author
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Sibanda, Rockie
- Subjects
SOCIOLINGUISTICS ,IMMIGRANT families ,LANGUAGE maintenance ,HERITAGE language speakers ,LANGUAGE policy ,ETHNICITY - Abstract
Such research is essential to maintaining language for educational purposes and family interactions. This is a very important topic in a multilingual and multicultural country such as South Africa, and it adds new knowledge to the current research on family language policies and heritage languages. Family interactions are central to language transmission. The available literature shows family units as central to language maintenance and sustenance among immigrant families. Research on immigrant language practices in South Africa is sparse, with available research mainly focusing on school experiences. No available research specifically addresses heritage language transmission within Malawian immigrant families in South Africa, which this study aimed to investigate. The research employed a sociolinguistic approach to explore the language transmission of Chichewa within Malawian immigrant families. The theoretical framework positions Chichewa as mainly used in family circles and less at religious and social gatherings. Data were collected through interviews and observations at family and social gatherings. The study finds that the family context is the main domain within which children are exposed to parental heritage language to a consequential degree, whereas social gatherings contribute to a lesser extent. The data show that parental efforts at transmitting heritage language are insufficient for sustainable levels. Although parents wish to preserve some elements of their identities and culture, a signifier of ethnic identity, their children seem not keen to do so. The study uncovered two major reasons for children's disinterest: fear of anti-foreign sentiments and a lack of attachment to the parental home country. The paper concludes with the identification of an emerging 'indelible' heritage language speaker, a phenomenon that could motivate further research in this field. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
47. Respondent-Driven Sampling for Estimation of the Cumulative Lifetime Incidence of Abortion in Soweto, Johannesburg, South Africa: A Methodological Assessment.
- Author
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Jayaweera, Ruvani T, Gerdts, Caitlin, Wesson, Paul, Motana, Relebohile, Muñoz, Isabel, Bessenaar, Tshegofatso, McFarland, Willi, and Ahern, Jennifer
- Subjects
RESEARCH ,CONFIDENCE intervals ,SAMPLE size (Statistics) ,ABORTION ,DISEASE incidence ,PREGNANCY outcomes ,DESCRIPTIVE statistics ,STATISTICAL sampling ,DATA analysis software - Abstract
Respondent-driven sampling (RDS) is a potential strategy for addressing challenges in accurate estimation of abortion incidence, but it relies on often untested assumptions. We conducted an RDS study to estimate the cumulative lifetime incidence of abortion in Soweto, Johannesburg, South Africa (April–December 2018), to evaluate whether RDS assumptions were met, and to compare RDS estimates of incidence with estimates adjusted for employment and age based on census data. A total of 849 participants were recruited from 11 seed participants between April and December 2018. The assumption that individuals can identify target population members and the assumption of approximation of sampling with replacement was met. There were minor violations of the assumptions of seed independence from the final sample and reciprocity of ties. Assumptions of accurate degree reporting and random recruitment were not met. Failure to meet assumptions yielded a study sample with different employment characteristics than those of the target population; this could not be resolved by standard RDS methods. The RDS estimate of cumulative lifetime abortion incidence was 12.1% (95% confidence interval: 9.8, 14.3), and the employment-adjusted estimate was 16.9% (95% confidence interval: 12.8, 22.1). We caution researchers in using RDS for representative estimates of abortion incidence. Use of postsurvey weights to adjust for differences in characteristics between the sample and the target population may yield more representative results. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
48. Empowering Wildlife Guardians: An Equitable Digital Stewardship and Reward System for Biodiversity Conservation Using Deep Learning and 3/4G Camera Traps.
- Author
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Fergus, Paul, Chalmers, Carl, Longmore, Steven, Wich, Serge, Warmenhove, Carmen, Swart, Jonathan, Ngongwane, Thuto, Burger, André, Ledgard, Jonathan, and Meijaard, Erik
- Subjects
REWARD (Psychology) ,BIODIVERSITY conservation ,WILDLIFE conservation ,DEEP learning ,BANKING industry ,ANIMAL species ,SUSTAINABILITY - Abstract
The biodiversity of our planet is under threat, with approximately one million species expected to become extinct within decades. The reason: negative human actions, which include hunting, overfishing, pollution, and the conversion of land for urbanisation and agricultural purposes. Despite significant investment from charities and governments for activities that benefit nature, global wildlife populations continue to decline. Local wildlife guardians have historically played a critical role in global conservation efforts and have shown their ability to achieve sustainability at various levels. In 2021, COP26 recognised their contributions and pledged USD 1.7 billion per year; however this is a fraction of the global biodiversity budget available (between USD 124 billion and USD 143 billion annually) given they protect 80% of the planets biodiversity. This paper proposes a radical new solution based on "Interspecies Money", where animals own their own money. Creating a digital twin for each species allows animals to dispense funds to their guardians for the services they provide. For example, a rhinoceros may release a payment to its guardian each time it is detected in a camera trap as long as it remains alive and well. To test the efficacy of this approach, 27 camera traps were deployed over a 400 km 2 area in Welgevonden Game Reserve in Limpopo Province in South Africa. The motion-triggered camera traps were operational for ten months and, using deep learning, we managed to capture images of 12 distinct animal species. For each species, a makeshift bank account was set up and credited with GBP 100. Each time an animal was captured in a camera and successfully classified, 1 penny (an arbitrary amount—mechanisms still need to be developed to determine the real value of species) was transferred from the animal account to its associated guardian. The trial demonstrated that it is possible to achieve high animal detection accuracy across the 12 species with a sensitivity of 96.38%, specificity of 99.62%, precision of 87.14%, F1 score of 90.33%, and an accuracy of 99.31%. The successful detections facilitated the transfer of GBP 185.20 between animals and their associated guardians. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
49. It gives me anxiety! Black Academics’ experiences of teaching large classes during the Covid-19 pandemic in a South African university .
- Author
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Hlatshwayo, Mlamuli, Zondi, Thabile, and Mokoena, Thabang
- Subjects
COVID-19 pandemic ,STUDENT engagement ,ONLINE education ,INFECTIOUS disease transmission ,DEVELOPING countries ,COMMUNICABLE diseases ,ANXIETY - Abstract
The COVID-19 pandemic continues to disrupt the teaching and learning in international higher education. Those of us in the global South have particularly been hard hit, struggling to balance working/ functioning economies, a struggling healthcare system, education, commerce, trade, transport, and the community spread of what was later found to be a very infectious disease (Porter et al., 2021; Rogerson & Rogerson, 2020; Shamasunder et al., 2020). In this paper, we explored and theorised the experiences of academics who taught large classes at a research-intensive university in South Africa. We purposely recruited and interviewed eight academics for this case study. We drew on Chela Sandoval’s (2013) philosophical notion of “decolonial love” to theorise what an inclusive, democratic and ubuntu-orientated teaching of large classes could look like for us in the global South, beyond the pandemic. The findings revealed that academics continue to be frustrated/challenged/made anxious with teaching large classes due to inadequate infrastructure (digital), lack of resources, and general unpreparedness with the virtual/online teaching and learning. The findings also revealed that large classes were problematic as academics struggled to provide critical engagements and discussions during the hard Covid-19 lockdown, and with some lamenting the frustrations of “teaching to themselves” due to the lack of student engagement. We conclude this paper by proposing a decolonial love approach to the online teaching and learning of large classes, underpinned by the ethics of care, compassion and understanding in curriculum imaginations. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
50. Fighting Global Neo-Extractivism: Fossil-Free Social Movements in South Africa.
- Author
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Ngam, Roland
- Subjects
SOCIAL movements - Published
- 2023
- Full Text
- View/download PDF
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