South Africa Research Articles

Phylogenetics of the rust fungi (Pucciniales) of South Africa, with notes on their life histories and possible origins

ABSTRACT South Africa has an indigenous rust (Pucciniales) funga of approximately 460 species. This funga was sampled with species from as many genera as possible. The nuclear ribosomal large subunit (28S) region was amplified from samples representing 110 indigenous species, as well as the small subunit (18S) region and the cytochrome c oxidase subunit 3 (CO3) in some cases, and these were used in phylogenetic analyses. One new species is described, 12 new combinations made, six names reinstated, and two life history connections made. The life histories of this funga were summarized; it is dominated by species with contracted life histories. The majority of species are autoecious, with a small proportion being heteroecious. Of the autoecious species, many will likely be homothallic with no spermagonia. A shortened life history with homothallism allows for a single basidiospore infection to initiate a local population buildup under the prevailing unpredictable climatic conditions. Suggestions are made as to the possible origin of this funga based on the development of the modern South African flora. It is postulated that the rusts of South Africa are of relatively recent origin, consisting of three groups. Firstly, there is an African tropical element with members of the Mikronegerineae (Hemileia), the Sphaerophragmiaceae (Puccorchidium, Sphaerophragmium), and certain Uredinineae (Stomatisora). Their immediate ancestors likely occurred in the tropical forests of Africa during the Paleogene. Secondly, there is a pantropical element including the Raveneliaceae (e.g., Diorchidium, Maravalia, Ravenelia sensu lato, Uropyxis). This likely diversified during the Neogene, when the mimosoids became the dominant trees of the developing savannas. Thirdly, the Pucciniaceae invaded Africa as this continent pushed northward closing the Tethys Sea. They diversified with the development of the savannas as these become the dominant habitat in most of Africa, and are by far the largest component of the South African rust funga.

Beyond intragroup betrayal during intergroup relational peacebuilding

ABSTRACT This article addresses a neglected human cost of relational peacebuilding, identified in an earlier article on ‘peace as betrayal’. The focus here is how relational peacebuilders can respond to painful accusations of betrayal by family-type group members evoked by working with the ‘other side’. Continuing to draw on the reflections of experienced peace practitioners from South Africa, the Israel-Palestine region and the conflict in and about Northern Ireland, a contrasting distinction is made between two routes: a ‘clarification’ route that explains why working with ‘them’ is not a betrayal of ‘us’ vs a ‘counter-critique’ response that attempts to turn the traitor tables on the accusers. An evaluative discussion of the counter-critique route explores the pitfalls of political abuse, avoidance of shared responsibility and underestimating ‘thin’ relations (Margalit), as well as the complementary potential of the clarification and the counter-critique routes beyond peace as betrayal.

Interpersonal violence experienced by nurses caring for persons with intellectual disability: A phenomenological study

This phenomenological study explored interpersonal violence experienced by nurses caring for persons diagnosed with intellectual disability at a selected psychiatric hospital in South Africa. In-depth phenomenological interviews were conducted with 16 nurses (female = 10, males = 06 with 2 to 16 and above years’ tenure in long-term units). Using thematic analysis, three overarching themes emerged: (i) violence directed towards self and others; (ii) violence coping strategies; and (iii) support and skills development needs. Participants reported, for example, aggression and head banging aimed at causing harm to oneself and others as challenging behaviours that could potentially harm nurses and other patients. The nurses used adjustment and acceptance as coping strategies, including reliance on team support and being cognisant of their duty to care. These findings indicate a need for in-service training programmes to upgrade their knowledge inthis specialised field and for induction of new appointees serving in long-term units treating individuals with intellectual disability.

The racial politics of Afropolitanism and Zukiswa Wanner’s London, Cape Town, Joburg

ABSTRACT While scholars have long taken Afropolitanism to task for its classism, its racial politics have largely been praised. Pushing against this (un)critical consensus, this article offers the first sustained analysis of the racial politics informing Achille Mbembe’s theory of Afropolitanism alongside Zukiswa Wanner’s novel London, Cape Town, Joburg (2014). Making visible how institutional racism continues to define the post-apartheid present, it shows that both authors differentially single out race for scrutiny and collude in mystifying white dominance in South Africa. Just as Mbembe’s works on Afropolitanism are preoccupied with race but obfuscate racism, Wanner’s novel uses racialized drama as an important plot device yet stigmatizes the denunciation of white supremacy, while sharply critiquing homophobia, sexism, and xenophobia. In invoking race as central while relieving white people of responsibility for the racist status quo, these works display paradoxes that reveal an investment in silencing racism, paradoxes which this article lays bare.

Investigating somatic variants and pathways in mismatch repair-deficient (dMMR) colorectal carcinoma in South Africa

AimsColorectal carcinoma (CRC) is a common cause of morbidity and mortality worldwide, and an emerging public health problem in sub-Saharan Africa. Several authors have described an increased frequency of mismatch...

Attrition Rates in HIV Viral Load Monitoring and Factors Associated With Overdue Testing Among Children Within South Africa's Antiretroviral Treatment Program: Retrospective Descriptive Analysis.

Numerous studies in South Africa have reported low HIV viral load (VL) suppression and high attrition rates within the pediatric HIV treatment program. Using routine laboratory data, we evaluated HIV VL monitoring, including mobility and overdue VL (OVL) testing, within 5 priority districts in South Africa. We performed a retrospective descriptive analysis of National Health Laboratory Service (NHLS) data for children and adolescents aged 1-15 years having undergone HIV VL testing between May 1, 2019, and April 30, 2020, from 152 facilities within the City of Johannesburg, City of Tshwane, eThekwini, uMgungundlovu, and Zululand. HIV VL test-level data were deduplicated to patient-level data using the NHLS CDW (Corporate Data Warehouse) probabilistic record-linking algorithm and then further manually deduplicated. An OVL was defined as no subsequent VL determined within 18 months of the last test. Variables associated with the last VL test, including age, sex, VL findings, district type, and facility type, are described. A multivariate logistic regression analysis was performed to identify variables associated with an OVL test. Among 21,338 children and adolescents aged 1-15 years who had an HIV VL test, 72.70% (n=15,512) had a follow-up VL test within 18 months. Furthermore, 13.33% (n=2194) of them were followed up at a different facility, of whom 3.79% (n=624) were in a different district and 1.71% (n=281) were in a different province. Among patients with a VL of ≥1000 RNA copies/mL of plasma, the median time to subsequent testing was 6 (IQR 4-10) months. The younger the age of the patient, the greater the proportion with an OVL, ranging from a peak of 52% among 1-year-olds to a trough of 21% among 14-year-olds. On multivariate analysis, 2 consecutive HIV VL findings of ≥1000 RNA copies/mL of plasma were associated with an increased adjusted odds ratio (AOR) of having an OVL (AOR 2.07, 95% CI 1.71-2.51). Conversely, patients examined at a hospital (AOR 0.86, 95% CI 0.77-0.96), those with ≥2 previous tests (AOR 0.78, 95% CI 0.70-0.86), those examined in a rural district (AOR 0.63, 95% CI 0.54-0.73), and older age groups of 5-9 years (AOR 0.56, 95% CI 0.47-0.65) and 10-14 years (AOR 0.51, 95% CI 0.44-0.59) compared to 1-4 years were associated with a significantly decreased odds of having an OVL test. Considerable attrition occurs within South Africa's pediatric HIV treatment program, with over one-fourth of children having an OVL test 18 months subsequent to their previous test. In particular, younger children and those with virological failure were found to be at increased risk of having an OVL test. Improved HIV VL monitoring is essential for improving outcomes within South Africa's pediatric antiretroviral treatment program.

Statistical analysis of gold production in South Africa using ARIMA, VAR and ARNN modelling techniques: Extrapolating future gold production, Resources–Reserves depletion, and Implication on South Africa's gold exploration

South African gold mining is one of the main contributors to the country's economic growth and employment creation. Assessment of future gold production is pivotal for positioning the country's supply security and contribution to the projected global demand. In this study, we modelled and forecasted South African and global gold production trends (1990–2022) using the Autoregressive Integrated Moving Average (ARIMA), Vector Autoregressive (VAR), and Autoregressive Neural Network (ARNN) techniques. The study also evaluated the impact of annual productions on the collated reserves (2008–2021) and the contribution of resource–reserve conversion in sustaining gold reserves within the South African goldfields. The ARIMA (1,1,0) model, based on root mean square error (RMSE), mean absolute error (MAE), and mean absolute percentage error (MAPE), outperformed both ARNN (1,1) and VAR (2) methods. The forecast of the ARIMA model showed an increase in South Africa's gold production, with a compounded annual growth rate (CAGR) of ∼0.6%. The model also predicted an increase in global gold production, with CAGR of ∼2.2%. The analyses of reserves–production trends showed that most South African mining companies have been depleting their gold reserves due to production and were minimally converting resources to reserves, averaging at ∼2%/year from 2017 till present. The minimal conversion may also reflect the challenging mining conditions (such as mining depths and underground flooding) and the mining industry's socio-political dynamics. We demonstrated that, if the resource–reserve conversion factor is maintained (at ∼2%/year and above), the forecasted production may sustain the current reserves (at > 2000 t Au excluding tailings) but deplete ∼27 % of the resources to reserves by 2040. However, if the conversion factor continues to decline (to <1 %), the forecasted gold production will reduce the reserves to < 500 t Au with ∼3% of the resources converted to reserves.

Behavior, site use and demographics of shortfin devil rays, Mobula kuhlii, at a newly-discovered cleaning area in South Africa

Many shark and ray species show affinity to specific sites, making these areas critical for their survival. These include cleaning stations: locations on reefs where cleaner fish remove parasites and clean wounds, which is important for maintaining health. Cleaning stations also function as social gathering sites, or resting points, where courtship and mating can occur. In this study, we identify an aggregation site for the shortfin devil ray, Mobula kuhlii (Family Mobulidae) within the Aliwal Shoal Marine Protected Area in KwaZulu-Natal (KZN), South Africa, and document their behavior. Remote underwater video was used to collect footage of M. kuhlii being cleaned by blue streak cleaner wrasse, Labroides dimidiatus. Generalized additive models (GAMs) were used to assess environmental predictors of M. kuhlii presence on Aliwal Shoal. Mixed models were used to assess the same environmental predictors and their correlation with mean M. kuhlii cleaning duration and number of L. dimidiatus bites per second at the identified cleaning station site. M. kuhlii were present in 56% of observation days, with group numbers up to > 150 individuals. Sea surface temperature was a significant predictor for M. kuhlii presence, while a north to south current was significantly associated with longer mean cleaning durations. These results support findings of mobulid studies in KZN that show increased habitat use during summer temperatures (24–25 °C) and suggest these sites to be important for individual health and social interaction. We hope these findings can be used for development of location-specific management plans to safeguard this Endangered species.

South African post-apartheid context: Self-reflection of student leaders' role identity in a multicultural context.

Since South Africa's first democratic election in 1994, the student leadership profile has changed dramatically at historically white universities (HWUs). Given the postapartheid South African context where this study was conducted, and how participants navigate multiple role identities within a multicultural setting, the article elucidates student leaders' self-reflection on their role identity and draws on identity theory from the discipline of social psychology as its theoretical framework, while referencing the roles model from leadership studies.

Clinical profile of children and adolescents with autism spectrum disorder in Durban, South Africa

Clinical profile of children and adolescents with autism spectrum disorder in Durban, South Africa

Economic Growth Effects of Fiscal Policy in South Africa: Empirical Evidence from Personal Income Tax

Economic Growth Effects of Fiscal Policy in South Africa: Empirical Evidence from Personal Income Tax

Coping mechanisms used by caregivers of HIV/AIDS orphans in North West province, South Africa

Coping mechanisms used by caregivers of HIV/AIDS orphans in North West province, South Africa

Examining Mandatory Audit Firm Rotation and Audit Quality in South Africa: Practitioner and Academic Perspectives

Examining Mandatory Audit Firm Rotation and Audit Quality in South Africa: Practitioner and Academic Perspectives

Investigating the drivers of solid waste generation and disposal: evidence from South Africa

Investigating the drivers of solid waste generation and disposal: evidence from South Africa

Spatial variability of dust concentration and deposition around an industrial port in South Africa emphasises the complexity of sources and transport

Spatial variability of dust concentration and deposition around an industrial port in South Africa emphasises the complexity of sources and transport

The pandemic and working mothers: perspectives from American and South African working mothers

The purpose of the current study was to examine the effects of the COVID-19 pandemic on working mothers from the United States and South Africa. This study sought to highlight both cross-cultural similarities and differences. American and South African working mothers took part in online interviews. Eighteen participants were included in the sample, ten participants lived in the United States, while eight participants currently resided in South Africa. The age range of the participants’ children was from 0 to 21 years old. Each participant met individually with the researcher and answered a series of open-ended questions regarding their experiences of being a working mother during the COVID-19 pandemic. Researchers analyzed interviews using thematic analysis. Common themes emerged in the interviews with both American and South African working mothers. Mothers in the United States and South Africa both noted the need for flexible work schedules as well as expressed difficulty balancing roles as mothers and professionals during the pandemic. Increased motivation and resiliency as well as lack of representation of women leaders were themes specific to South African mothers in this study. Conversely, feelings of decreased interest in pursuing leadership opportunities was a theme specific to American mothers in this study. The current study adds to the growing body of literature documenting the effect of the pandemic on working mothers, and builds on this research by including a qualitative component to gain knowledge from working mothers themselves. The narratives collected in the current study highlight commonalities as well as differences in the experiences of working mothers in the United States and South Africa, which holds important implications for how workplaces and the broader community can best attend to the unique needs of working mothers.

Cost-effectiveness of a complex continuum of care intervention targeting women and children: protocol for an economic evaluation of the Bukhali trial in South Africa

IntroductionAs nearly two-thirds of women presenting at their first antenatal visit are either overweight or obese in urban South Africa, the preconception period is an opportunity to optimise health and...

History of Rectal Product Use and Country of Residence Influence Preference for Rectal Microbicide Dosage Forms Among Young Sexual and Gender Minorities: A Multi-country Trial Comparing Placebo Douche, Suppository, and Insert Products.

The DESIRE Study (MTN-035) explored product preference among three placebo rectal microbicide (RM) formulations, a rectal douche(RD), a suppository, and an insert, among 210 sexually active transgender people and men who have sex with men in five counties: the United States, Peru, Thailand, South Africa, and Malawi. Participants used each product prior to receptive anal sex (RAS) for 1month, following a randomly assigned sequence, then selected their preferred product via computer assisted self-interview. In-depth interviews examined reasons for preference. We compared product preference and prior product use by country to explore whether geographic location and experience with the similar products impacted preference. A majority in the United States (56%) and Peru (58%) and nearly half in South Africa (48%) preferred the douche. Most in Malawi (59%) preferred the suppository, while half in Thailand (50%) and nearly half in South Africa (47%) preferred the insert. Participants who preferred the douche described it as quick and easy, already routinized, and serving a dual purpose of cleansing and protecting. Those who preferred the insert found it small, portable, discreet, with quick dissolution. Those who preferred the suppository found the size and shape acceptable and liked the added lubrication it provided. Experience with product use varied by country. Participants with RD experience were significantly more likely to prefer the douche (p = 0.03). Diversifying availability of multiple RM dosage forms can increase uptake and improve HIV prevention efforts globally.

The impact of credit accessibility and information communication technology on the income of small-scale sugarcane farmers in Ndwedwe Local Municipality, KwaZulu-Natal Province, South Africa

IntroductionAccess to credit and information and communication technology (ICT) plays a pivotal role in enhancing the practices of small-scale sugarcane farmers, impacting their financial, social, and economic wellbeing. However, many small-scale farmers need help accessing these resources, thereby affecting their ability to generate sustainable income. This study aimed to assess the factors influencing the adoption of ICT and access to credit and their subsequent impact on small-scale farmers' income.MethodsEmploying a multistage sampling technique, 300 small-scale farmers were selected as participants in the study. The recursive bivariate probit regression model was used to assess the factors affecting adoption ICT and a selectivity-corrected ordinary least square regression model was utilized to estimate the synergistic effect of ICT adoption and access to credit on the income of small-scale sugarcane farmers.Results and discussionThe findings revealed that approximately 77% of small-scale farmers had access to credit, while more than 80% had adopted ICT. The results derived from the recursive bivariate probit (RBP) regression model indicated that access to credit, education, and extension support positively and significantly influenced the adoption of ICT. Conversely, marital status and non-farm income exhibited a negative and significant influence on the adoption of ICT. Gender and marital status were positively and significantly associated with access to credit, whereas age, education, and non-farm income showed a negative and significant relationship on access to credit. Subsequently, a selectivity-corrected ordinary least square regression model analysis revealed that factors such as gender, marital status, extension, government support, and transportation costs positively and significantly influenced farmer's income. In contrast, education, employment status, and non-farm income exhibited a negative and significant influence on income.Conclusion and recommendationsThe study concludes that socio-demographic factors, such as gender, marital status, extension support, government support, and transportation costs, positively contribute to farmers' income. Small-scale sugarcane farmer involvement in other non-farm activities is associated with reduced farm income. This implies that farmers' livelihoods options are reduced as they can only focus on sugarcane development as a source of income. There is a pressing need to educate small-scale farmers on ICT and provide them with access to agricultural credit. Additionally, extension workers should offer advisory support to small-scale farmers requiring assistance in accessing agricultural credit. There is a need to train sugarcane farmers on different agricultural income generating activities to reduce their over-reliance on sugarcane development. By addressing the identified socio-demographic factors and implementing targeted policy interventions, stakeholders can foster an enabling environment for small-scale farmers to thrive, ultimately contributing to the sustainable development of the sugarcane sector and the broader agricultural landscape in South Africa.

Effect of COVID-19 lockdown on glycated haemoglobin testing and utilisation in KwaZulu-Natal, South Africa

Background: Diabetic monitoring and treatment guidelines are easily accessible, but compliance is poor in KwaZulu-Natal. The coronavirus disease 2019 (COVID-19) pandemic had a devastating impact on diabetic healthcare, both directly and through public health interventions.Objective: This study aimed to close the gaps in knowledge concerning glycated haemoglobin (HbA1c) test utilisation and how this was affected by the COVID-19 lockdown in KwaZulu-Natal.Methods: We reviewed HbA1c test volumes and results from public health facilities in the 11 health districts in KwaZulu-Natal, South Africa. We compared testing trends and glycaemic control between two 10-month study periods before (March 2019 – December 2019) and during (March 2020 – December 2020) the COVID-19 pandemic.Results: The number of HbA1c tests performed decreased 6.1% during the pandemic period, with 173 760 HbA1c tests performed in 2019 and 163 236 HbA1c tests performed in 2020. There was a statistically significant increase in the average HbA1c level during the pandemic (mean HbA1c level in the pre-pandemic period: 70.5 mmol/mol [8.6%] versus mean HbA1c level in the pandemic period: 72.7 mmol/mol [8.8%]; p-value 0.001). Of patients with suboptimal HbA1c results (83 421 in 2019, 83 259 in 2020), 11 656 (14.0%) in 2019 and 10 086 (12.1%) in 2020 had more than one HbA1c test performed during the study period.Conclusion: The COVID-19 pandemic impacted glycaemic monitoring in KwaZulu-Natal with lower HbA1c test volumes and worse glycaemic control seen during the pandemic. HbA1c testing practices are not in keeping with recommended guidelines.What this study adds: The study demonstrates that the COVID-19 pandemic impacted HbA1c utilisation in KwaZulu-Natal. Importantly, HbA1c testing practices in KwaZulu-Natal are not in keeping with Society for Endocrinology, Metabolism and Diabetes of South Africa guidelines regarding the monitoring of diabetic patients, and this requires more attention for future diabetic healthcare interventions.