University of Johannesburg

Prevalence and Factors Associated With Illicit Drug Use Among Older Australians: A Cross-Sectional Study Using a Nationally Representative Household-Based Survey (HILDA)

Background: Illicit drug use among older adults (aged 45+ years) is increasing globally. Despite the growing impact on older adults, studies examining illicit drug use in this population remain limited. Method: Data were drawn from Wave 21 (2021) of the Household, Income and Labo...

CHALLENGES TO ACHIEVE GENDER EQUALITY AND SDG 5 IN AFRICA

Gender equality is a global phenomenon that necessitates ongoing discussions among scholars, professionals, advocates, legislators, and other relevant stakeholders. Gender inequality persists in society and in the workplace despite the establishment of institutional and legal str...

Of Outcrops and Narrow Seams: Geology, Tribute Agreements and Cooperative Chromite Mining along Zimbabwe’s Great Dyke, 1985–2022

This article argues that the development of cooperative chromite mining in postcolonial Zimbabwe was largely shaped by geological factors, particularly the geotechnical challenges of extracting the narrow (thin) and frequently faulted chromite seams in the northern section of the...

Predictive analysis of wear rate in SUP9 spring steel under controlled heat treatment cooling rates

Abstract In the present work, SUP9 spring steel specimens were reheated to 1000 °C in a controlled muffle furnace to obtain a homogeneous austenitic structure. The specimens were then cooled at different rates (0.1, 5, 100, 375, and 650 °C) to generate varied microstructures. Inc...

Platelet–neutrophil cooperation in premetastatic niche formation: from NETosis and stromal conditioning to nanotherapeutic interception

Metastasis remains the leading cause of cancer-related mortality, yet the metastatic cascade is initiated long before circulating tumor cells reach distant organs. Central to this early phase is the premetastatic niche (PMN), a dynamic and tumor-conditioned microenvironment in wh...

Automatic Analysis of Dialogic Argumentation: An Exploratory Study on Performance of Large Language Models in Context of Secondary Mathematics and Science Education

This study explores dialogic argumentation in secondary-level mathematics lessons and the potential of artificial intelligence (AI) and large language models (LLMs) to analyze these interactions. Its primary aim is to explore how and to what extent AI can assist in automating the...

Distinct gut viral communities across life stages in dairy cattle

Abstract Background Ruminant gut microbial communities influence host health, productivity, and methane emissions, yet viral communities across life stages remain uncharacterized. Whilst bacteriophages shape microbial communities in many ecosystems, their role across dairy cattle...

Exploring the impact of robot-based services on hotel brand image among senior consumers

Robot has introduced new opportunities for enhancing hotel brand image, yet few studies on hotel robots have focused on senior consumers. Drawing on the Information Systems Success (ISS) model, this study examines the impact of information quality, system quality, and service qua...

The role of self-efficacy in shaping willingness to adapt for enhanced resilience among smallholder farmers in Limpopo, South Africa

Climate change adaptation research in sub-Saharan Africa has traditionally prioritised socio-economic and institutional drivers of actualized adaptation measures. However, the cognitive precursors specifically the moderating role of self-efficacy remain under-researched in “clima...

Taking Stock: Assessing Animal Welfare in South African Captive Lion Tourism Venues

South Africa maintains thousands of captive lions and other felids in commercial captive wildlife facilities. Despite ongoing debate regarding the welfare implications of this industry, empirical assessments of welfare conditions remain limited. This study conducted a baseline as...

Socio-economic vulnerability and effective institutions for adaptation to compounding climate hazards in Africa

Africa is facing more frequent and damaging climate hazards whose effects often interact across sectors, places, and time. This narrative review synthesizes evidence from 2023 to 2025 on socio-economic vulnerability and institutional responses to compounding climate hazards in Af...

Towards fair gig work: integrating gig work into Scotland's renewed fair work agenda

Purpose This article examines how platform gig work in Scotland, which remains absent from both the fair work agenda, aligns with or diverges from, Scotland's fair work framework. Specifically, it discusses the employment practices in the sector in relation to Scotland's fair wor...

Crafting Across Domains: Enhancing Crafting Behaviour Among Entrepreneurs Through a Face-to-face Intervention

This article examines the effectiveness of a face-to-face intervention aimed at encouraging entrepreneurs to use crafting strategies, including seeking resources, optimising demands, network crafting, and leisure crafting. Using a quasi-experimental design (i.e., intervention gro...

Influence of defatted winged termite (Macrotermes natalensis) inclusion levels in diets on caeca bacterial community of Ross 308 broiler chickens

Abstract Edible insects has been identified among the potential natural feed additives to in poultry diets. Aim The study evaluated the responses in caeca bacterial community of Ross 308 broiler chickens fed defatted winged termite meal (WTM). A total of 150 one-day-old, unsexed...

Developing a model for effective public oversight of intelligence-driven surveillance through an African-focused lens

This article distils the main findings of the Special Issue on public oversight of intelligence-driven digital surveillance in Africa. We explore how the public can perform such oversight better, learning the lessons from moments when public oversight has been attempted and propo...

Boundaries Between Freedom of Expression and Hate Speech: The Case of Struggle Songs Current Perspectives From the Global South

This discussion article addresses the historical, political and social context of struggle songs in South Africa and the circumstances in which such songs should be considered prohibited hate speech. The analysis is framed around the decision in AfriForum v Malema , in which the...

A multilevel analysis of the predictive effects of internal migration and region of residence on women’s empowerment in Nigeria

BACKGROUND: Despite growing research interest on the influences of migration and regions of residence on human behaviors, studies on the influences of migration and region of residence on women empowerment especially in sub-Saharan Africa are lacking. Thus, this study investigate...

Modeling and analysis of ultra-dense networks under LOS and NLOS benchmark association scenarios using a stochastic-geometry approach

Ultra-dense networks (UDNs) have become a key enabler for meeting the capacity demands of 5G systems. However, their performance is strongly shaped by blockage effects and the resulting mixture of line-of-sight (LOS) and non-line-of-sight (NLOS) propagation. This paper develops a...

Disentangling global supply chains: A systematic map of research on the biodiversity and social impacts of European blue food consumption

Abstract Background : Seafood is a vital global resource, yet the rapid growth of aquaculture – which now supplies over half the world’s blue food – has introduced significant ecological and social challenges. As a major importer and consumer, Europe is central to these global su...

The prevalence of concomitant anatomical variations of atlas vertebrae in a south african skeletal collection

Anatomical variations of atlas vertebrae (C1) are common, yet the prevalence of coexistence of multiple variants remains underreported. This study investigated the prevalence, patterns, and demographic associations of atlas variations in a South African skeletal repository. A qua...