by Lorato | Jun 25, 2025 | Accolades and Achievements, All News, SMU Media, Student Media
At just 22 years old, Hermy Mantjiu is proving that hard work, curiosity, and resilience are a powerful combination. Hailing from Kalkspruit Ga-Maraba in Limpopo, Hermy recently graduated summa cum laude with a Bachelor of Science Honours in Statistics from Sefako Makgatho Health Sciences University (SMU). His remarkable academic journey reflects not only his brilliance but also his commitment to using mathematics to solve real-world problems.
Now an honours student working for the Department of Statistical Science, Mantjiu reflects proudly on his academic success. “It hasn’t always been easy,” he says, “but I’ve worked hard, stayed disciplined, and grown not just academically, but also personally. My achievements reflect my dedication and love for learning, especially in challenging subjects like mathematics and statistics.”
Inspired by Mason Cooley’s quote, “Procrastination makes easy things hard, hard things harder,” Mantjiu’s disciplined approach has guided him through the rigours of Mathematical Science — a field he describes as intellectually stimulating and deeply rewarding.
“I love how maths challenges me to think differently. It’s like solving a puzzle — sometimes frustrating, but incredibly satisfying when everything finally clicks,” he explains. Unlike traditional mathematics, which focuses largely on theory, Mathematical Science merges pure and applied maths with statistics, computing, and modelling. “That’s what makes it so versatile and relevant in today’s data-driven world,” he adds.
His programme covered a wide range of areas, including abstract algebra, applied mathematics, and statistics. While he admits that abstract algebra was particularly challenging, he grew to appreciate its elegance and structure. On the other hand, mathematics and statistics stood out as favourites, especially when applied to real-world scenarios.
Mantjiu’s Honours project, “Correlates of Reading Literacy Among Participants Aged 15–30: A Case Study of Four Provinces in South Africa”, demonstrated how statistics can directly inform decision-making in areas such as health, finance, and technology. “It showed me how statistics can directly support decision-making in health, finance, and technology,” he says.
His work wasn’t confined to theoretical exercises. Mantjiu became proficient in RStudio, Stata, and MATLAB, using them to simulate complex systems, solve differential equations, and analyse datasets. “These computational tools made our work more efficient and accurate,” he says. “We even solved differential equations using numerical methods like Euler and Runge-Kutta.”
Mantjiu’s passion for problem-solving extends into interdisciplinary fields such as data science and public health. He believes mathematical modelling plays a crucial role in addressing global issues like climate change, pandemics, and inequality. “Statistical inference, for example, helps us make informed decisions based on uncertain information — from clinical trials to financial forecasting,” he explains.
His success was not a solo journey. “My mentors and the students I tutored had a huge impact on my growth,” he shares. “Teaching others deepened my own understanding and kept me motivated.” Collaborative projects also helped him build communication and teamwork skills — attributes he believes are essential in both academia and industry.
Now pursuing an Honours degree in Statistics, Mantjiu has set his sights on a data-driven career in research, analytics, or education. “Eventually, I’d love to pursue a Master’s in biostatistics or data science. I want to work where research meets impact — especially in health or finance.”
When asked what advice he has for future students, his answer is clear: “Be ready to think hard, fail forward, and stay curious. Mathematical Science isn’t just about numbers; it’s about thinking clearly, solving problems, and making a difference.”
Mantjiu’s journey is a shining example of what South African youth can achieve with the right mindset, support, and sense of purpose. As he looks to the future, he carries with him not just academic accolades but a vision for how mathematical science can unlock real change in the world.
By Tumelo Moila
by Lorato | Jun 17, 2025 | Accolades and Achievements, All News, SMU Media, Student Media
by Lorato | Jun 11, 2025 | Accolades and Achievements, All News, SMU Media, Student Media
From Westonaria in Gauteng to the forefront of statistical innovation, SMU graduate and Senior Data Scientist at the FNB Retail Chief Data & Analytics Office (CDAO), Dr Sandile Johannes Butelezi, has achieved a remarkable milestone: earning a PhD in Statistics in just two years. He completed his doctorate with six published papers, three under review, and presentations at international conferences. His research, grounded in his professional experience within the insurance industry, presents a transformative approach to short-term insurance modelling in a world grappling with climate change and economic volatility.
Butelezi’s doctoral thesis, completed at a leading South African institution, centred on enhancing the accuracy and fairness of insurance risk models, particularly in the short-term motor insurance sector. “Working in the insurance sector revealed how outdated traditional models have become, especially in an era of unpredictable weather and shifting risk profiles,” he explained. “My goal was to contribute adaptive and equitable methods that reflect the complex realities we face.”
His solution was a hybrid modelling framework that blends generalised linear models (GLMs)—a mainstay of actuarial science—with advanced machine learning techniques such as XGBoost, gradient boosting machines, and random forests. Among these, XGBoost delivered the most promising results, achieving a robust R² of 0.68 when tested against real insurance claims data from 2021 to 2024, alongside simulated extreme-weather scenarios.
The model revealed significant regional and seasonal variations in claim patterns. Flood-related claims, for instance, peaked during summer months, while metropolitan areas like Gauteng recorded higher instances of malicious damage and motor accidents. These findings underscored the shortcomings of uniform premium pricing and pointed towards the need for dynamic, locally tailored strategies.
One of the study’s most striking findings was not statistical, but social: a concerning pattern of claim rejections among non-native English speakers, often due to misunderstandings of complex policy language. “This is not just a technical issue—it’s a matter of equity,” said Butelezi. “We need simplified, multilingual insurance documentation that’s accessible to all policyholders.”
The practical implications of Buthelezi’s research are profound. Insurers can use his model to more accurately price risk, allocate resources, and respond proactively to claims volatility. Regulators and policymakers, meanwhile, gain a tool for promoting a more resilient, inclusive, and climate-aware financial protection system.
Looking ahead, Butelezi sees exciting avenues for continued research. These include integrating high-resolution climate data for long-term forecasting, applying behavioural economics to understand consumer behaviour in insurance uptake, and advancing AI applications such as deep learning and reinforcement learning to manage high-dimensional or unstructured data sources like satellite imagery or text-based claims reports.
“There’s also urgent work to be done on the ethics of algorithmic decision-making,” he added. “We must ensure that data-driven models do not reinforce existing social and economic inequalities. Fairness must be an intentional part of model design.”
Completing a PhD in just two years is no small feat, and Buthelezi credits his success to disciplined time management and a strong support network of supervisors, family, and peers. “I set realistic goals, stuck to a structured routine, and allowed myself breaks when needed. But above all, the encouragement from my support system made the difference,” he said.
Now, Butelezi plans to continue bridging the gap between academia and practice. He hopes to supervise postgraduate students, contribute to academic research, and influence public policy in areas such as disaster risk management, bioinformatics, and AI regulation. He also remains committed to developing new theoretical frameworks in mathematical statistics.
His advice to aspiring statisticians is both grounded and aspirational: “Master the fundamentals, stay curious, and be unafraid of messy, real-world data. The world needs statisticians who are both technically sharp and socially conscious.”
Reflecting on his journey from Westonaria to international academic recognition, he summarised it with a simple yet powerful phrase: “Only the best is good enough.”
By Tumelo Moila
by Lorato | Jun 11, 2025 | Accolades and Achievements, All News, SMU Media, Student Media
History has been made at Sefako Makgatho Health Sciences University (SMU) as Dr Phumudzo Lloyd Seabe becomes the first-ever PhD graduate from the Department of Mathematics and Applied Mathematics. This achievement not only marks a significant academic milestone for the University but also represents a powerful personal journey, rooted in legacy, discipline, and a vision for inclusive technological advancement.
Born and raised in Gogobole, a village in Venda, Limpopo, Seabe was raised in a home shaped by women of strength and conviction. “I was raised in a household led by women of great dignity and discipline,” he says. “My mother’s consistency taught me the power of hard work. My grandmother—sharp-witted and deeply principled—was the compass of our family.”
His grandmother, a retired domestic worker from the South African Air Force Base, had a profound influence on him. As the second of twelve grandchildren, he was always under her watchful eye. Her passing in April 2020, just over a year before he started his PhD, left a significant void. Yet her spirit continued to guide him. “She used to say, ‘Noma kubuhlungu, kodwa kulungile’—Even though it hurts, it is well,” he recalls. “That became my silent prayer during long nights of research and writing.”
In July 2021, Seabe began his PhD journey at SMU with a clear and ambitious research focus: to combine the tools of artificial intelligence (AI), behavioural finance, and traditional investment theory to analyse the highly volatile cryptocurrency market.
His thesis, titled Advancing Cryptocurrency Market Analysis and Investment Strategies: An Integrated Approach Using Machine Learning, Sentiment Analysis, and Factor Investing, presents a comprehensive framework for understanding and forecasting cryptocurrency market behaviour. It integrates advanced deep learning models—including LSTM – Long Short-Term Memory (LSTM), Gated Recurrent Unit (GRU), Bi-Directional LSTM, and Temporal Attention Networks—with time series and sentiment data from over 48 million cryptocurrency-related tweets.
Using Natural Language Processing (NLP), he extracted real-time sentiment signals via Valence Aware Dictionary and sEntiment Reasoner (VADER) and RoBERTa, two of the leading sentiment analysis tools. These were integrated into hybrid models enhanced with SHapley Additive exPlanations (SHAP) explainability, allowing for transparency and interpretability of AI forecasts. In addition to technical innovation, Seabe revisited classical finance theories using Fama–MacBeth regressions and cross-sectional portfolio construction. His findings confirmed that even in digital, decentralised markets, traditional predictors like momentum and size continue to offer robust explanatory power.
His work resulted in four publications in DHET-accredited journals, including one paper cited over 140 times and nominated for the 2023 Best Paper Award, with the outcome to be announced in June 2025. These achievements underscore the global academic relevance and impact of his work.
Professor Maggie Aphane, Head of the Department of Mathematics and Applied Mathematics, praised this historic moment: “Dr Phumudzo Seabe has set a new record in the Department of Mathematics and Applied Mathematics by becoming the first PhD graduate from Medunsa, University of Limpopo (Medunsa Campus), and SMU. He successfully completed his PhD in an unprecedented timeframe. As Head of Department, it is a privilege for me to witness this achievement during my tenure. This accomplishment reflects my dedication to the university and the nation as a whole. I am committed to fostering the production of more PhD graduates.”
Seabe’s journey was not without sacrifice. Balancing full-time professional responsibilities alongside rigorous academic research required remarkable discipline and focus. “This journey was never just about research,” he says. “It was about honouring the sacrifices of my family, especially my grandmother and mother. Every model I built, every paper I wrote, was an offering to them.”
Now, as he graduates, Seabe continues to work at the intersection of financial intelligence, artificial intelligence, and behavioural insight. His vision is to build data-driven systems that are not only accurate but inclusive—technologies that reflect both innovation and the human condition. Seabe’s success is not only a personal victory but a beacon of possibility for rural communities and aspiring researchers across South Africa. He has not just earned a PhD—he has made history.
By Dimakatso Modise
by Lorato | May 29, 2025 | Accolades and Achievements, All News, SMU Media, Student Media
Sefako Makgatho Health Sciences University (SMU) continues to affirm its reputation as a centre of academic excellence and transformative education, as one of its distinguished alumnae, Dr Prudence Buthelezi, rises to prominence across Africa. A celebrated medical doctor, award-winning author, and outspoken advocate for healthcare justice, Dr Buthelezi embodies the University’s commitment to professional training, cutting-edge research, and socially responsive scholarship.
Her recent recognition at the prestigious Emerge Africa Awards—where she received accolades for her compelling debut book Fortitude—cements her status as both a trailblazer in the healthcare sector and a powerful literary voice. Through her work, Dr Buthelezi is not only changing lives in clinical settings but also shaping critical conversations about equity, resilience, and reform within the African health landscape.
“I’m overjoyed and deeply humbled to receive this recognition,” said Dr Buthelezi. “Fortitude was born from personal pain and resilience, inspired by my sister Thabisile, who was left paralysed after a devastating car accident. This award validates her story and the journey of so many caregivers and families navigating disability.”
The Emerge Africa Award is the second honour for Fortitude, following the African Honoree Authors Award in 2023. The book, which candidly explores the challenges of caring for people with disabilities, has resonated widely. “Many readers, especially caregivers, have told me the book gave them hope and practical tools. It’s a reminder that they’re not alone,” she shared.
An alumna of Sefako Makgatho Health Sciences University (SMU), Dr Buthelezi credits the institution for shaping her both professionally and personally. “SMU didn’t just educate me—it nurtured me. Coming from a previously disadvantaged community, I faced countless barriers. But SMU’s commitment to excellence and transformation gave me purpose and resilience,” she said.
Though her journey into medicine was inspired by her sister’s unfulfilled dream of becoming a doctor, Dr Buthelezi admits she never foresaw becoming a published author or health advocate. “Writing Fortitude was not part of the original plan. But my experiences revealed a profound need for mental resilience and support for caregivers—something I felt compelled to address.”
Her efforts have not gone unnoticed in the broader healthcare community. In addition to her literary accolades, she recently received a Recognition Award from the Government Employees Medical Scheme (GEMS) for her leadership and patient-centred care. “These awards are deeply personal,” she reflected. “They honour my sister’s journey and affirm that Fortitude is making the impact I hoped for—bringing dignity and support to those who need it most.”
Beyond her writing, Dr Buthelezi is the co-founder of the National Health Care Professionals Association (NHCPA), an organisation established to protect healthcare workers’ rights and promote quality patient care. “We saw a need to address financial challenges, unfair treatment, and systemic barriers faced by healthcare professionals, especially those from marginalised communities,” she explained.
One of her most significant advocacy moments came in the wake of the Section 59 Investigation Panel’s 2021 report, which confirmed systemic racial profiling by major medical aids. “For years, black professionals like myself were flagged unfairly. Some faced financial devastation, even suicide. The report was a vindication—but more importantly, it sparked a national dialogue that continues today.”
In her pursuit of equitable healthcare, Dr Buthelezi also launched Ezempilo/Zwa Mutakalo, a talk show delivering health education in indigenous languages. “It’s about making healthcare accessible. By speaking in isiZulu, Sesotho and Tshivenda, we ensure our communities understand and trust the information they receive.”
Her journey has not been without hardship. She speaks openly about the emotional toll of caring for a sister with brain injuries and raising a son with health complications. “These experiences have taught me that adversity can be a powerful catalyst for empathy and strength.”
Dr Buthelezi’s faith plays a central role in her resilience. “It’s what keeps me grounded. In both medicine and advocacy, my spirituality reminds me that everyone deserves dignity and compassion.”
Looking to the future, she plans to expand the message of Fortitude through workshops and digital platforms. “I want to reach more people—especially those who feel invisible. This message of resilience is bigger than me.”
When asked what legacy she hopes to leave, her answer is clear: “I want to be remembered as someone who empowered others—particularly women and marginalised communities—to find strength in their stories. Anyone, regardless of their background, can be a force for change.”
To young women with big dreams but difficult paths, she offers this message: “Never underestimate your power. Your challenges don’t define you—they build your strength. Speak up. Push forward. Your voice matters, and the world needs it.”
By Tumelo Moila
by Lorato | May 29, 2025 | Accolades and Achievements, All News, SMU Media, Student Media
Sefako Makgatho Health Sciences University (SMU) continues to champion excellence and innovation in health sciences, as one of its esteemed academics, Professor Johanna Meyer, is honoured with the 2025 PHILA Lifetime Achievement Award by the Public Health Association of South Africa (PHASA). This distinguished award recognises individuals whose lifelong contributions have left a lasting and meaningful impact on public health in South Africa and beyond.
A respected scholar and advocate, Professor Meyer has dedicated decades of her academic and professional life to strengthening public health systems and advancing health equity. Describing the award as “humbling and unexpected,” she joins a select group of visionaries whose work continues to shape healthier futures through research, education, and service. Her recognition is a testament not only to personal dedication but also to SMU’s growing influence in transforming health services across the country.
“I never imagined that, among all the brilliant public health professionals in the country, I would be selected. But this award is not just for me – it reflects the collective effort of many people who have walked this journey with me,” she said.
Her journey is a testament to SMU’s commitment to excellence, reflected in her work on immunisation, pharmacovigilance, antimicrobial stewardship, and health policy advocacy. Over the years, she has played an instrumental role in strengthening public health systems and promoting the rational use of medicines and vaccines.
Professor Meyer’s interest in public health was sparked early in her career, but deepened significantly when she joined the South African Vaccination and Immunisation Centre (SAVIC). Through SAVIC, she found a platform to focus on vaccine safety, training of healthcare workers, and boosting vaccine confidence—particularly in underserved communities.
“Vaccines became the vehicle through which I could pursue my goal of improving public health. I focused on their safety, uptake, and rational use – and on building trust,” she noted.
Her commitment to public service is evident in her leadership roles, both past and present. These include serving on the World Health Organization’s Global Advisory Committee on Vaccine Safety and chairing both the South African Health Products Regulatory Authority (SAHPRA) and the National Immunisation Safety Expert Committee.
Professor Meyer’s work became even more critical during the COVID-19 pandemic. Under her leadership, SAVIC trained healthcare workers across South Africa to implement the national COVID-19 vaccine roll-out. She also led national efforts to monitor vaccine safety and address public concerns—a demonstration of leadership and accountability during a time of global uncertainty.
“I was on radio, TV, and Zoom calls almost every day, helping people understand vaccine safety and countering misinformation,” she recalls.
Her team’s efforts helped establish pharmacovigilance systems that now extend across five African countries.
Professor Meyer is not only a scientist and leader but also a devoted mentor. Her approach reflects SMU’s value of respect, particularly in the way she supports and inspires students and emerging public health professionals.
“Mentoring starts with motivating the heart. I encourage students to focus on public service, even when change is slow. Persistence matters,” she says.
She also advocates for greater academic engagement with government and policy work, especially in a country grappling with systemic challenges in healthcare delivery.
“Policymaking must be guided by scientific evidence. Independent voices are crucial to protect the integrity of our health systems,” she adds.
Professor Meyer continues to be a leading voice in public health, with ongoing work in antimicrobial resistance, community engagement, and vaccine safety. Her unwavering commitment to the greater good—often behind the scenes—epitomises the spirit of service that aligns closely with SMU’s ethos.
Despite global challenges such as misinformation, climate change denial, and anti-science sentiment, Professor Meyer remains optimistic and committed to inspiring future generations.
“There are so many opportunities to make a real difference. You just have to stay committed,” she says.
She often draws strength from the words of anthropologist Margaret Mead: “Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it is the only thing that ever has.”
SMU is proud to count Professor Meyer among its esteemed academic leaders—a professional whose work is anchored in excellence, integrity, respect, and accountability, and whose legacy will inspire public health champions for generations to come.
By Dimakatso Modise
The unveiling of the 1000-Bed Student Housing Project (Phase 1 of 2000 beds), the Revitalised Library, and the ICT Refresher Project reflects SMU’s bold new era: one driven by academic excellence, ethical leadership, and the dignity of student experience.