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Articles by du Plessis
Editorial: Autonomous low-field magnetic resonance imaging, volume II
Magnetic resonance imaging (MRI) remains one of the most powerful tools for characterizing anatomy and disease, yet access to MRI is still profoundly unequal. Low- and ultra-low-field systems can reduce the infrastructure, power, siting, and cost requirements that constrain conventional MRI and can bring imaging closer to patients in remote, resource-limited, and point-of-care settings. However, portability alone does not make MRI accessible.
Embedding anticipatory science diplomacy in South African higher education governance: A framework for ethical foresight and adaptive leadership
Addyman, S. (2025). Taking a Selfie: Researcher-practitioner positionality and reflexivity in project scholarship. Project Leadership and Society, 6, 100175. https://doi.org/10.1016/j.plas.2024.100175 Adonis CK, Silinda F (2021) Institutional culture and transformation in higher education in post-1994 South Africa: a critical race theory analysis. Critical African Studies 13(1):73–94.
SARB’s balancing act goes beyond the latest inflation number
Francois du Plessis, CEO of CFI Financial Group South Africa On 23 September, Stats SA reported annual consumer inflation at 4.4% in August, up slightly from 4.3% in July. The same day, the Monetary Policy Committee (MPC) lifted the policy rate by 25 basis points to 7.25%. It would be easy to read that as a straightforward response to higher inflation. I think the decision says more about the risks SARB sees beyond the headline number and how persistent some of those pressures could become.
What July’s MPC decision signaled for traders
Francois Du Plessis Chief Executive Officer for South Africa of CFI Financial Group South Africa “South African traders received two significant pieces of economic information within 24 hours in July. Stats SA reported that annual consumer inflation had risen to 5% in June, followed the next day by the South African Reserve Bank’s decision to keep the policy rate unchanged at 7%. “Now that the announcements have passed, the useful question is not whether a trader correctly predicted the outcome.
Reframing Talent Development in the Intelligence Age: Reasoning from First Principles
PERSPECTIVE article Volume 17 - 2026 | doi: 10.3389/fpsyg.2026.1848779 Reviewed by PERSPECTIVE article CD Carla Du Plessis 1 JR Jordan Roothman 1 VP Vesselin Popov 3 1. Fitt Talent Solutions, Stellenbosch, South Africa 2. North-West University Optentia Research Unit, Vanderbijlpark, South Africa 3.
Editorial: Child and adolescent mental health research in a digital age: missed opportunities and overlooked threats
Introduction Online platforms, mobile applications and device-based measures are increasingly used to deliver interventions, recruit participants and collect outcome data. Digitally enabled mental health can ‘blow hot and cold at the same time’, affording us potential scalability, speed and inclusivity, while introducing new conceptual, ethical and methodological challenges.
Temporal trends in semen parameters among men attending a fertility center in the UAE (2012 – 2022): A retrospective study
ORIGINAL RESEARCH article Front. Physiol. Sec. Reproductive and Mating Physiology Abstract Background Decline in semen quality have been widely debated for decades, however, most global assessments lack data from the Middle East. To address this gap, this study characterized eleven-year temporal trends in semen parameters among Emirati men, accounting for the effects of age and body mass index (BMI).
Optimising water allocation with hybrid machine learning-water evaluation and planning under climate and population pressure in Upper Awash-Akaki, Ethiopia | Journal of Hydroinformatics | IWA Publishing
climate change, ML, population growth, water allocation, WEAP Water is a critical resource for sustaining life, public health, and socio-economic development (Li & Wu 2024). Its equitable and efficient management is essential for achieving the United Nations Sustainable Development Goals (SDGs), particularly SDG 6, which aims to ensure universal access to clean water and sanitation while reducing distributional inequalities (Sarkar & Bharat 2021; Evaristo et al. 2023).
Comparative analysis of vineyard-associated bacteria and their antagonistic activity against Botrytis cinerea
To isolate bacteria from grapevine leaves and vineyard soil and evaluate their putative modes of action against the fungus Botrytis cinerea which causes grape bunch rot. In this study, we isolated 188 bacteria from soil and leaves, collected from two vineyards in Stellenbosch. Dual culture assays were used to screen the isolates against three Botrytis cinerea strains. Nine isolates (8 Bacillus species and 1 Pantoea agglomerans) with ≥60% antifungal activity against the three B.
Optimism meets action: PwC finds African workforce is ready for AI and career reinvention
Marthle du Plessis, Workforce of the Future Leader, and Dr Dayalan Govender, People and Organisation Leader at PwC Africa With the future in motion, Africa practices are evolving alongside it – embracing rapid workforce reinvention, accelerating digital adoption, and fostering a strong culture of continuous learning, according to PwC’s Global Workforce Hopes and Fears Survey 2025.
Good care to older persons: Perceptions of managers, nurses, caregivers and older persons - BMC Geriatrics
Abstract Different studies have been conducted regarding the quality of care provided to older persons. However, at the onset of this study in South Africa, a developing country, it was not clear what the perceptions are of managers, nurses, caregivers, and older persons regarding good care to older persons.
Your final verdict: Protect your legacy with a valid will
Your final verdict: Protect your legacy with a valid will Tyler du Plessis, Legal Adviser at Allan Gray A will is one of the most important documents that you will execute. It furnishes control, clarity and peace of mind over how your assets will be dealt with when you are no longer around. And yet, according to the Financial Sector Conduct Authority, more than 70% of working South Africans do not have a will.
IPL 2025 | Capitals await clarity on Starc; Stubbs and du Plessis, too, yet to join camp
New Delhi: Even as a majority of Delhi Capitals’ Indian contingent trained at the Arun Jaitley Stadium for the first time since the Indian Premier League (IPL) was suspended on May 8 owing to cross-border tensions with Pakistan, uncertainty persists on the availability of a few key overseas players. Barring Sri Lankan pace bowler Dushmantha Chameera, none of the overseas lot was in attendance on a sultry Thursday evening in the national capital.
The importance of microbiology reference laboratories and adequate funding for infectious disease surveillance
Hyppää sisältöön Shaw, David; Torreblanca, Raquel Abad; Amin-Chowdhury, Zahin; Bautista, Adriana; Bennett, Desiree; Broughton, Karen; Casanova, Carlo; Choi, Eun Hwa; Claus, Heike; Corcoran, Mary; Cottrell, Simon; Cunney, Robert; Cuypers, Lize; Dalby, Tine; Davies, Heather; de Gouveia, Linda; Deghmane, Ala-Eddine; Desmet, Stefanie; Domenech, Mirian; Drew, Richard; du Plessis, Mignon; Duarte, Carolina; Fuursted, Kurt; Golden, Alyssa; Almeida, Samanta Cristine Grassi; Henares, Desiree;...
Composing Speech: Investigation and Application of Musical Expression Embedded in Spoken Language
This dissertation explores the musical potential of emotive expression in cut-up speech sounds. Cut-up is a twentieth-century technique with roots in Dadaism in which one cuts “pre-existing material into radical juxtapositions” (BBC, 2015), made popular in literature by William Burroughs in the 1950s and 60s. Speech is used primarily to communicate information relating to the world around us, but it operates sonically.
Dataset from autonomous assets collected during the SO-CHIC field campaign in the Southern Ocean
These datasets are a part of the Southern Ocean Carbon and Heat Impact on Climate (SO-CHIC, https://www.sochic-h2020.eu/) project, and were collected during the field campaign in 2022. Seaglider SG640 (SG640_20220110_SOCHIC.nc) This dataset contains the temperature, salinity, dissolved oxygen, fluorescence, and backscatter profiles from a Seaglider (SG640), which was deployed at the Maud Rise seamount in the eastern part of the Weddell Sea from the 10th of January 2022, to the 7th of April 2022.
Shaping the Future of Freight Logistics: Use Cases of Artificial Intelligence
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Repetitive Sprinting and Running Fatigue in Children with Different Levels of Motor Competence
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
The Carbon Footprint of Pharmaceutical Logistics: Calculating Distribution Emissions
1. Introduction The need for a continuous, reliable, and safe supply of medicines has intensified in recent years, as access to affordable pharmaceutical products is fundamental to achieving good health for billions of people worldwide [].
Genomic epidemiology of early SARS-CoV-2 transmission dynamics in Bangladesh - Virology Journal
COVID-19 confirmed cases increased towards the end of the national lockdown and continued rising during the subsequent zone-coded lockdown, peaking at the start of July 2020 (Fig. 1). Reported case numbers dropped sharply during Eid al-Adha, which is one of the most important Muslim festivals and marked by a period of public holiday in Bangladesh [55] (31st July 2020–1st August 2020) (Fig. 1).
Establishing and characterizing organoid cultures from colon tissue of South African individuals
Colorectal cancer (CRC) has been poorly studied in South Africa, with limited studies on disease progression and development. Studies that have investigated CRC in South Africa have indicated that there is racial disparity between different racial groups that may be attributed to alternative developmental pathways, differences in genetic compositions or CRC initiators that result in these different clinical presentations.
Immunogenic profile of a plant-produced nonavalent African horse sickness viral protein 2 (VP2) vaccine in IFNAR-/-mice
Abstract: A safe, highly immunogenic multivalent vaccine to protect against all nine serotypes of African horse sickness virus (AHSV), will revolutionise the AHS vaccine industry in endemic countries and beyond.
Corporate governance in the United States, the United Kingdom, New Zealand, Canada, South Africa, India and Singapore: 11.6 South Africa
Esser, I.-M. (2024) Corporate governance in the United States, the United Kingdom, New Zealand, Canada, South Africa, India and Singapore: 11.6 South Africa. In: du Plessis, J. J., Hargovan, A. and Nosworthy, B. (eds.) Principles of Contemporary Corporate Governance [5th Ed.]. Cambridge University Press, pp. 323-331. ISBN 9781009287388 Full text not currently available from Enlighten.
Towards modelling AR Sco: generalized particle dynamics and strong radiation-reaction regimes
In recent years, kinetic simulations have been crucial to further our understanding of pulsar electrodynamics. These simulations have been used to numerically and self-consistently solve the structure and geometry of a pulsar magnetosphere and calculate the radiative processes along the particles’ trajectories. The major limiting factor for these simulations is the large-scale separation between the gyro-period compared to the stellar rotation period.
Data used in "Storms regulate Southern Ocean summer warming"
The data included in this repository was used to generate the figures in the submitted manuscript "Storms regulate Southern Ocean summer warming" by du Plessis and co-authors. Abstract: "Sea surface temperature (SST) in the Southern Ocean (SO) is the fingerprint of ocean heat uptake and critical for air-sea interactions. However, SO SST is biased warm in climate models, reflecting our limited understanding of the mechanisms that set its magnitude and variability.
Analysing key factors considered by consumers before adopting 5G- enabled services in South Africa
With the mainstream deployment of new 5G mobile data technologies and the growing pressures of social influence, linked with the widespread impact Fake news, it is concerning what effect the before mentioned factors have on consumer adoption of 5G-enabled services has been a growing concern. The main objective of this study was to analyse key factors that consumers consider before adopting 5G-enabled services in South Africa.
Skin Barrier Function of Black African and White Nursing... : Journal of the Dermatology Nurses' Association
FEATURE ARTICLES Journal of the Dermatology Nurses’ Association | DOI: 10.1097/JDN.0000000000000798 Free SDC Nursing students in South Africa are required to complete a minimum of 2,000 working hours during their 4 years of tertiary (university) education. They are circulated through the different departments of hospitals during their practical training and are trained in proper hand hygiene routines to prevent nosocomial infections between patients (Pittet, 2001; SANC, 2005).
Trend and Variability Analysis of Annual Maximum Rainfall Using Observed and Remotely Sensed Data in the Tropical Climate Zones of Uganda
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by Martin Okirya Martin Okirya Scilit Preprints.org Google Scholar * and JA Du Plessis JA Du Plessis Scilit Preprints.org Google Scholar Department of Civil Engineering, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa * Author to whom correspondence should be addressed.
Data used in the manuscript entitled "Turbulent heat flux dynamics along the Dotson and Getz ice-shelf fronts (Amundsen Sea, Antarctica)"
Data files used in the analysis in the manuscript entitled "Turbulent heat flux dynamics along the Dotson and Getz ice-shelf fronts (Amundsen Sea, Antarctica)". Data were collected during the RV NB Palmer NBP2202 cruise, during the 2022 TARSAN campagine in the Amundsen Sea. Underway data provides daily files from the underway and meteorology sensors in JGOFS format. CTD data collected from the cruise. Information about sensors and data formats is included in the data report.
A human-centred design approach to student success in a first-year high impact module
[EN] The success of students in the first year is an important concern for higher education institutions globally. Although much is known about the factors that impact on student success, not many authors have considered ...[+] [EN] The success of students in the first year is an important concern for higher education institutions globally.
Not Kohli or Faf, Harbhajan Singh names RCB's unsung hero as game changer against CSK
News Not Kohli or Faf, Harbhajan Singh names RCB's unsung hero as game changer against CSK SportsMay 19,2024, 02:15 PM Former India spinner Harbhajan Singh praises Rajat Patidar for turning the game around for Royal Challengers Bengaluru in IPL 2024 against Chennai Super Kings. Patidar's knock, along with partnerships from Kohli and du Plessis, led RCB to qualify for the playoffs. Harbhajan highlights Green's form, Dayal's performance, and RCB's fourth spot finish with a net run rate of 0.459.
‘If you are feeling alone and you are not feeling safe, it impacts everything’: a mixed-methods exploration of international students’ accommodation, subjective wellbeing and mental health help-seeking | BMC Public Health | Full Text
References Study Melbourne. Victoria’s Education and Training Institutions. [Internet]. Melbourne: Victorian Government. Melbourne, Victoria: State Government of Victoria, 2020 [cited 2023 Aug 26]. https://global.vic.gov.au/__data/assets/pdf_file/0003/2062227/12615-DJPR-GV-IE-Victorias-Education-Training-Institutions-Brochure_WEB.pdf LaMontagne AD, Shann C, Lolicato E, Newton D, Owen PJ, Tomyn AJ, Reavley NJ.
Education Sciences | Free Full-Text | Reflections on Initial Teacher Education and Theoretical Framing of Applied Pedagogical Knowledge with a Context-Consciousness: An International Study
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessArticle by Anna Elizabeth du Plessis Anna Elizabeth du Plessis SciProfiles Scilit Preprints.org Google Scholar 1,* and Johann Dreyer SciProfiles Scilit Preprints.org Google Scholar 2 1 School of Education, University of New England, Armidale 2350, Australia 2 School of Education, University of South Africa, Pretoria 0003, South Africa * Author to whom correspondence should be addressed.
Microbiological quality of irrigation water on highly diverse fresh produce smallholder farms: elucidating environmental routes of contamination
Irrigation water (n = 44), soil (n = 85), and fresh produce (n = 95) samples, from six smallholder farms with different production systems, were analysed for hygiene indicator bacterial counts and the presence of shigatoxigenic E. coli and Salmonella spp., using standard microbiological methods. Identities of isolates were confirmed using matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF MS) and the genetic relatedness of the E.
Education Sciences | Free Full-Text | Challenges for Pedagogical Effectiveness in an Ever-Changing Education Landscape: Conceptualisation of Pedagogical Mobility and Flexibility as a Context-Consciousness
1. Introduction The challenges to maintaining pedagogical effectiveness in an ever-changing education landscape not only turn focus on the professional development of teachers and their teaching practices but also emphasise the preparation of pre-service teachers and their skill development to practice pedagogical flexibility and mobility while focusing on context-consciousness [1].
Nondestructive geochemical characterization of fossil hominin taphonomy and burial history
Published March 15, 2024 | Version Supplemental material Journal Article Open Present, Theodore M.1 Niespolo, Elizabeth M.1 Clarke, Catherine E.2 Behrensmeyer, Anna K.3 Leakey, Louise N.4, 5 Leakey, Meave G.4, 5 Mongle, Carrie4, 5 Du Plessis, Anton2 Northrup, Paul4 Tappero, Ryan V.6 Yang, Deming5 Rasbury, E. Troy4 Grine, Fredrick E.4 1. California Institute of Technology 2. Stellenbosch University 3. National Museum of Natural History 4. Stony Brook University 5.
Analytical solution for the submerged free jet
an Constants in the Fourier-series representations of partially developed profiles (–) A0 Homann's velocity gradient, normalized by mean velocity and nozzle diameter (–) bn Constants in the Fourier-series representations of partially developed profiles (–) B Radial domain size beyond which jet has decayed (–) d Pipe-type nozzle diameter (m) f Conserved property in the heat equation (“T”) (–) g(r) Fourier-series representations of issuing profiles (–) j Index of series solution (–) J0, J1...
"Not fighting in Ramadan…" Despite strong rumors, Khamzat Chimaev refuses to fight at UFC 300
Everybody remains excited for UFC undefeated contender Khamzat Chimaev. Some rumors suggested that he would fight at UFC 300. However, Chimaev has refused to fight on the much anticipated UFC 300 fight card. Here is what happened: Khamzat Chimaev said he would not fight in the UFC 300 main event because of Ramadan. He clarified this himself, debunking rumors of his title fight against Leon Edwards. Speaking to MMA Uncensored, Chimaev said: I will fight everybody.
Central Autonomic Network and Heart Rate Variability in Premature Neonates
Keywords: Neonatal period, Developing brain, Autonomic nervous system, Connectivity, Heart rate variability The Central Autonomic Network (CAN) may be conceptualized as consisting of lower centers in the brainstem and a network of higher centers in the cerebrum (cortical and subcortical) and cerebellum, integrated through complex hierarchically organized pathways [1].
The autoclave steam-curing of cotton fabrics treated with various aminoplast resins
Abstract: Cotton fabric treated with aminoplast resins can be cured in an autoclave steamer, provided that the samples are sealed in aluminium foil or cooking bags. Reference: Du Plessis, M. & Van Rensburg, N. 1977. The autoclave steam-curing of cotton fabrics treated with various aminoplast resins. http://hdl.handle.net/10204/13453 . Du Plessis, M., & Van Rensburg, N. (1977).
Supplementary material 1 from: Greyvenstein B, van den Berg J, du Plessis H (2023) Documenting Mantodea species in South African museum collections and an updated species list. Biodiversity Data Journal 11: e102637. https://doi.org/10.3897/BDJ.11.e102637
Published December 14, 2023 | Version v1 Dataset Open Database of all Mantodea records within South Africa Name Size md5:99f166363ddad6b83806d03ec6ac49b6 881.7 kB Journal article: 10.3897/BDJ.11.e102637 (DOI)
Electric Vehicle Drivetrain Efficiency and the Multi-Speed Transmission Question
1. Introduction With the advent of electric mobility, a key question for new builds and retrofitting is whether a manual transmission (MT) or single-speed transmission would result in the most-efficient drivetrain. This paper answers that question using a drivetrain design of a retrofitted vehicle from Sub-Saharan Africa [1]. Global sectors are racing to reduce carbon emissions and avoid global temperatures rising by 1.5 °C before 2030 [2].
A Decision Support System That Considers Risk and Site Specificity in the Assessment of Irrigation Water Quality (IrrigWQ)
1. Introduction This study describes a new approach to assess the fitness for use (FFU) of irrigation water. An assessment of the FFU of available water sources forms an integral part of the successful planning and implementation of any irrigation project. Fortunately, the guidelines for assessing the FFU of traditional sources of water for irrigation are well established.
Experience of early-life pain in premature infants is associated with atypical cerebellar development and later neurodevelopmental deficits - BMC Medicine
A total of 293 V/EPT infants were recruited between 2016 and 2022 for ongoing prospective cohort studies at Children’s National Hospital on the impact of preterm birth on the developing brain and subsequent neurodevelopment. Infants were excluded if they lacked a TEA scan (n = 17), the fMRI scan had excessive motion artifacts (n = 81), or the infant rated above “mild brain injury” on the Kidokoro scale [47] as determined by an experienced pediatric neuroradiologist (J.M.) (n = 47).
The Southern Ocean mixed layer and its boundary fluxes: Fine-scale observational progress and future research priorities
Abstract: Interactions between the upper ocean and air-ice-ocean fluxes in the Southern Ocean play a critical role in global climate by impacting the overturning circulation and oceanic heat and carbon uptake. Remote and challenging conditions have led to sparse observational coverage, while ongoing field programmes often fail to collect sufficient information in the right place or at the time-space scales required to constrain the variability occurring in the coupled ocean-atmosphere system.
Forecasting Fruit Export Damages and Enhancing Food Safety through Risk Management
1. Introduction Climate change stands as one of the most pressing challenges of our time, with its effects reverberating through human and natural systems worldwide. As new insights on this topic emerge daily, it is evident that global disruptions caused by weather extremes will persist well into the future, leaving lasting impacts on physical, biological, human and managed systems [].
Southern Ocean phytoplankton dynamics and carbon export: Insights from a seasonal cycle approach
Abstract: Quantifying the strength and efficiency of the Southern Ocean biological carbon pump (BCP) and its response to predicted changes in the Earth's climate is fundamental to our ability to predict long-term changes in the global carbon cycle and, by extension, the impact of continued anthropogenic perturbation of atmospheric CO2.
Using Driving-Cycle Data to Retrofit and Electrify Sub-Saharan Africa’s Existing Minibus Taxis for a Circular Economy
1. Introduction “The vehicle capital cost is considered a key barrier to uptake [of electric vehicles in sub-Saharan Africa]. Therefore, affordable vehicles must be designed and manufactured to lower vehicle capital costs. This could be achieved through local manufacturing of SSA-specific EVs.” and “Alternatively, retrofitting vehicles to be electric could lower prices even further and be a more widely achievable option.” —Collett et al. in Energy Strategy Reviews [1].
The Effect of Wood Ash and Soil Applications on the Behavior and Survival of Spodoptera frugiperda (Lepidoptera: Noctuidae) Larvae on Maize
This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessFeature PaperArticle by †, and * Unit for Environmental Sciences and Management, North-West University, Potchefstroom 2520, South Africa * Author to whom correspondence should be addressed. † Part of the MSc thesis of first author.
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