PhD Graduation booklet - December 2025

Graduation CeremonyPhD GRADUATION CEREMONY

Time:09 30

Date: 09 December 2025

A MESSAGE TO GRADUATES FROM THE CHANCELLOR

A hearty congratulations to the class of 2025! Your hard work and persistence have paid off, showing your character and grit.

The past year changed the world as we know it, with no less than 60 countries and more than 1.3 billion people globally going to vote, including our own country. The outcomes have changed geopolitics, with the Global North becoming more internally focused. The resurgence of economic protectionism has altered trade landscapes, causing ripples across global markets. The rise of artificial intelligence and big data further reshapes the balance of power, as nations compete for supremacy in these fields. Climate change, a universal threat, has become a catalyst for geopolitical tension. The race for control over natural resources, especially in the Arctic and other vulnerable regions, has intensified. South Africa has not been spared in the regional conflict, losing our own young fighters for peace in the DRC. Amid all the challenges that are unfolding, countries must come together to address environmental issues, choosing peace over wars, collaboration over conflict. You have conquered the academic journey, use your knowledge and your power to build bridges rather than walls. Be the visionary inclusive leaders who serve for greater good. The world needs that more than ever!

Your hard work to reach the pinnacle of your academic achievement, under immense challenges, is a true reflection of your resilience and commitment. It is this resilience that makes us confident that you have what it takes to build a better future that is equal and just. History has proven time and again that it is the weakest amongst us that determine our strength as a nation. The highly educated have the responsibility to enlighten and fight for social justice for the marginalised, for the good of humankind.

As the twentieth meeting of the Group of 20 heads to our shores, a first for the continent of Africa, we have chosen Solidarity, Equality and Sustainability as our G20 theme. This speaks to our recognition of the interconnected of nations. Our shared future depends on mutual understanding, cooperation, equality and stability across nations. As our future leaders you need to adapt to an uncertain world, embrace diversity, and foster dialogue. That will help you to craft a healthier, more balanced world for future generations.

As you venture into the world, take time to expand the depth and breadth of your knowledge. Read outside your specialisation, engage with people outside your comfort zone. Understand the plight of people less fortunate than yourself. Be the change you want to see in your country first then the world. Leaders who leave footprints worth emulating, are not only the brightest but also those who take time to learn from others, who are accountable for their actions and omissions, who use what they know and what they have, to make the world a better place. Leaders who care. Those leaders do this consistently with Humility and Integrity, Always. May you be those leaders! HALALA!

Dr Judy Dlamini Chancellor

A MESSAGE TO GRADUATES FROM THE VICE-CHANCELLOR

AND PRINCIPAL

Dear Wits Graduate,

Congratulations on successfully completing your academic programme at the University of the Witwatersrand, the premier University on the continent.

You are now a member of an elite group of graduates of this august institution. More than 200 000 alumni at the cutting edge of excellence, both locally and internationally in business, the public sector, the academy, and in civil society have trodden this path. Today, you become a member of this illustrious community.

Over the past 100 years, Wits has grown into one of the leading universities on the continent and a globally respected institution for its teaching and learning, knowledge creation and generation, and social impact. It has shaped the lives of many for the advancement of society. You are now an integral part of this proud and enduring legacy. Here at Wits, we actively pursue excellence and societal relevance in everything we do. From the abstract to the practical, our focus is on creating a space for the best thought, knowledge, and expertise to be unearthed and nurtured.

Wits is renowned for its intellectual leadership and for nurturing critical thinkers, creative innovators, problem-posers, and problem solvers. We have strived to match your ambition and drive to overcome the challenges thrown our way by the pandemic. Together we have reached the crest of the hill and proven, once again that excellence is achievable, even in times of uncertainty and adversity.

Your success has furthered our commitment to equipping the next generation of leaders with the skills and determination that you will need to find innovative and sustainable solutions to the pressing problems of the 21st Century.

As a Wits graduate, you had access to an exceptional educational experience. You have been exposed to a world-class academic and research programme and a vibrant community that makes you a true global citizen. You have been part of an institution that generates cutting-edge knowledge and innovation for South Africa and the world. It is now time for you to step into the world and use that experience, for good. We know that you will enter the next stage of your journey with the determination to build a better society tomorrow. I want to encourage you to remain a part of the Wits family by participating in our alumni programme and by further advancing the reputation of your alma mater.

Best wishes for the next steps of your journey and congratulations on being such a big part of the history of this illustrious institution.

Professor Zeblon Vilakazi, FRS Vice-Chancellor and Principal Wits University

Gaudeamus igitur

Juvenes dum sumus

GAUDEAMUS

Post jucundum juventutem

Post molestam senectutem

Nos habebit humus.

Ubi sunt qui ante nos

In mundo fuere?

Vadite ad superos

Transite in inferos

Hos si vis videre.

Vita nostra brevis est Brevi finietur.

Venit mors velociter

Rapit nos atrociter

Nemini parcetur.

Vivat academia

Vivant professores

Vivat membrum quodlibet

Vivat membra quaelibet

Semper sint in flore.

Vivant omnes virgines

Faciles, formosae.

Vivant et mulieres

Tenerae amabiles

Bonae laboriosae.

Vivant et republica et qui illam regit.

Vivat nostra civitas, Maecenatum caritas

Quae nos hic protegit.

Pereat tristitia, Pereant osores.

Pereat diabolus, Quivis antiburschius

Atque irrisores.

Let us rejoice therefore

While we are young.

After a pleasant youth

After a troublesome old age

The earth will have us.

Where are they

Who were in the world before us?

You may cross over to heaven

You may go to hell

If you wish to see them.

Our life is brief

It will be finished shortly.

Death comes quickly Atrociously, it snatches us away. No one is spared.

Long live the academy!

Long live the teachers!

Long live each male student!

Long live each female student!

May they always flourish!

Long live all maidens

Easy and beautiful!

Long live mature women also,

Tender and loveable

And full of good labor.

Long live the State

And the One who rules it!

Long live our City

And the charity of benefactors

Which protects us here!

Let sadness perish!

Let haters perish!

Let the devil perish!

Let whoever is against our school

Who laughs at it, perish!

Chancellor

OFFICERS OF THE UNIVERSITY

DR NJ DLAMINI MBChB (Natal) DOH (Free State) MBA (Witwatersrand) DBL (Unisa) PGCE (Witwatersrand) IEC (Stanford-USA)

Vice-Chancellor and Principal

PROFESSOR Z VILAKAZI BSc (Manchester) MSc PhD (Witwatersrand) FRS, FAAS, MASSAf

Chairman of Council

MR I SHONGWE BA (Wesleyan) MPhil (Oxford)

Senior Deputy Vice-Chancellor (Academic)

PROFESSOR R OSMAN BA (Witwatersrand) HDipEd BEd (Unisa) MEd PhD (Witwatersrand) MASSAf

Deputy Vice-Chancellor (Research and Innovation)

PROFESSOR L MORRIS BSc (Hons) (Witwatersrand) DPhil (Oxford) FRSSA FAAS MASSAf

Deputy Vice-Chancellor (Systems and Operations)

PROFESSOR IR JANDRELL BSc(Eng) GDE PhD (Witwatersrand) IntPE(SA) PrEng

FSAAE FSAIEE SMIEEE

Deputy Vice-Chancellor (People Development and Culture)

PROFESSOR G STEVENS BA (Cape Town) BA (Hons) Psych MPsych (Western Cape) DLitt et Phil (UNISA), MASSAf

Registrar

MS CG CROSLEY BA HDipEd (Witwatersrand) BEd Hons (Unisa) MEd (Witwatersrand)

Chief Financial Officer

MS MM MANYAMA CA (SA) BCom Accounting (Cape Town) BCompt Hons (Unisa) BCom Hons Taxation (Pretoria) MBA (GIBS)

Dean of Student Affairs

MR JAP SEPTEMBER BA MPhil (Cape Town)

DEANS OF THE FACULTIES

Faculty of Commerce, Law and Management

PROFESSOR J COHEN BCom Hons PhD (Witwatersrand)

Faculty of Engineering and the Built Environment

PROFESSOR T MAJOZI BSc(Eng) MSc(Eng) (Natal) PhD (UMIST) CEng PrEng FIChemE FAAS MASSAf FWISA FSAAE

Faculty of Health Sciences

PROFESSOR SA MADHI MBBCh MMed PhD (Witwatersrand) FCPaeds(SA) MASSAf RSSAf TWAS CBE

Faculty of Humanities

PROFESSOR M MUSEMWA BA Hons (Zimbabwe) MA (Cape Town) PhD (Minnesota, USA) MASSAf

Faculty of Science

PROFESSOR N CHETTY BSc Hons (Natal) MS PhD (U. Illinois Urbana-Champaign)

MASSAf MSAIP MRSSA

President of Convocation

MS K MUFAMADI BA LLB LLM (Witwatersrand)

EMERGENCY AND FIRE PLANS DURING GRADUATIONS

Emergency and Fire Plans during Graduations

1. In the event of an emergency and/or fire:

• The presiding official (Chancellor/Vice-Chancellor/Deputy ViceChancellor) will make an announcement requesting guests, graduands and staff to keep calm and remain seated;

•The Ushers will assist guests to proceed to the nearest Emergency exits in order to evacuate the Great Hall in an orderly fashion;

•Emergency exit signs are visible in red above all exit doors situated on your left and right hand sides as well as the back of the Hall;

•The Ushers will assist the elderly and disabled guests out of the building;

•The academic procession on stage must exit through the back stage door;

•Once outside the Great Hall all guests, graduands and staff must proceed to the main assembly point on the piazza.

2. In the event of aBomb threat

All bomb threats will be treated as real in order to protect lives and property and the premises will be evacuated immediately.

NATIONAL ANTHEM

Nkosi sikelel’ iAfrika

Maluphakanyisw’ uphondo lwayo,

Yizwa imithandazo yethu, Nkosi sikelela

Thina lusapho lwayo.

Morena boloka setjhaba sa heso, O fedise dintwa le matshwenyeho, O se boloke, O se boloke setjhaba sa heso, Setjhaba sa, South Afrika — South Afrika.

Uit die blou van onse hemel, Uit die diepte van ons see, Oor ons ewige gebergtes, Waar die kranse antwoord gee,

Sounds the call to come together, And united we shall stand, Let us live and strive for freedom In South Africa our land.

The Wits Choir

The Wits Choir has been around since 1995. Their repertoire is colourful and vibrant. They perform regularly at graduations and important ceremonies. The Wits Choir has toured internationally as well as playing host to other choirs here. They are also active in the community, undertaking choral outreach programmes.

A MESSAGE TO GRADUATES FROM THE PRESIDENT OF CONVOCATION

Dear Wits Graduate,

There are a few defining moments in life – and it is without doubt that graduation is one of them!

Today, you enter the world as a graduate from one of the top universities on the African continent. You enter into a world filled with many challenges, but a world that is also filled with limitless possibilities. May you meet all the challenges and opportunities that await you with pride, drive, passion, innovation, social-conscience and positive-purpose.

In addition to earning the degree conferred upon you today, you have also earned the right to be associated with a special group of individuals – the Convocation of Wits University. Convocation represents all the degreed graduates of Wits and forms a vital link between the University and the global community in which it operates. Membership to Convocation is free and serves as an official channel, allowing you, the members, to convey to the University management your views about the University. This membership comes with several unique privileges, which include nominating the Chancellor of the University. The Convocation Executive has two members on the Wits Council (the governing body of the University) and maintains other regular contact with the University to ensure the voice of the Convocation is represented at the highest levels of The University.

There are over approximately 250 000 Wits alumni worldwide. The distinction of our University is important to the prestige of our collective qualifications. We call upon you to nurture and enhance the value of your degree by promoting Wits’ image, preserving our values, and contributing towards our ongoing development, ensuring that we grow in stature as a globally competitive, proudly South African institution of higher learning.

Please engage with us via our numerous social media channels and keep connected with us so you can access career support, receive invitations to events and reunions and have sight of all the latest news about Wits and prominent Witsies: wits.ac.za/alumni/updateyourdetails/

I would like to extend a warm welcome to you – you are now a #Witsie4Life!

Ms Kgomotso Mufamadi President of Convocation Wits University

Convocation is a statutory body that includes all graduates of the University. Convocation is the largest constituency of the University (since the founding of the University in 1922, graduates number over 200 000). Its statutory mandate is to “… discuss and state its opinion upon any matters relating to the University including matters referred to it by the Council” and allows for the views of graduates to be represented at the highest levels of governance of the University.

IHELE THE PROCESSION

IHELE

Words and music by S.B.P. Mnomiya

Anhom

Falalala

Obani labo?

Baphi Ahhom?

Ngibona beza

Beyikazela

Bathwel ‘ongiyane

Bavela kuphi na?

Obani labo?

Ongqondongqondo

Osibakhulu

Yibo labo hhom!

Yini na leyo?

Ihele

Ihele lezingwazi zakithi

Ahhom udwendwe

Ahhom

Udwendwe lwezingqwele zakithi

Nant’ ihele

Longqondongqondo

Nant’ ihele

Losibakhulu

Udwendwe

Udwendwe Iwezingqwele zakithi

THE PROCESSION

Who are those? Which, Falalala?

I see them coming

Walking with swinging garments

They are wearing head rings

Where do they come from?

Who are those?

They are people with knowledge

They are people in authority

These are the ones

What is that?

It is a procession

A procession of our heroes

It is a procession

A procession of our champions

Here is a procession

Of people of knowledge

Here is a procession

Of people of knowledge

A procession

A procession of our heroes

Ihele is known as the ‘Black’ Gaudeamus Igitur. In song, the writer, Mnomiya uses very poetic language to describe a graduation ceremony. The soloist sings of the ‘strange’ procession of people in long robes and head gear. The choir responds by saying that these people are academics who read profound books of knowledge. Mnomiya goes on to say that the graduates are an inspiration to all of us, and we will also graduate like them one day. The song goes on to wish the graduates well and it ends with a resounding “Halala” (well done!).

THE UNIVERSITY MACE

Maces were originally weapons of defence, designed to break through armour. In medieval times, bishops carried a mace instead of a sword into battle to enable them to defend themselves in accordance with the canonical rule that forbade a priest to shed blood. In time, the mace has come to be regarded as a symbol of delegated authority vested in a person or an institution. At this University, it is a symbol of the authority vested in the Chancellor and a reminder of the mandate given by the legislature of this country to the University to grant degrees.

The University mace is the work of the Edinburgh designer, silversmith and engraver, William Kirk, who designed and made the mace of the University of Stirling and of other institutions. It is silver-and gold-plated, is 1070 millimetres long and 180 millimetres broad and weighs seven kilograms. The heraldic devices used in the decoration reflect the character of this University as an institution of learning, set in a mining centre within the Republic of South Africa.

The head of the mace with its spreading vertical blades is symbolic of the horns of a springbok. The central vertical spike is representative of a rock drill on the mine, and the amber stone set in the head is intended as a tribute to a past Chancellor through its association with his name, Bernstein, which in German means amber stone. The heavy quality of the head is consistent with the traditional concept of the mace as a weapon of defence. The collar repeats the shape of the head. It consists of eight cogs which symbolise the cog-wheel in the University coat of arms and represents mining and industry. The shaft is octagonal and divided into three sections. The coat of arms of the University is placed on the shaft under the collar. Below this the words Universitas Witwatersrandensis Johannesburgi: are inscribed, followed by the date in Roman numerals – MCMLXXVI (1977) – which signifies the year of the dedication of the mace.

The mace is a symbolic portrayal of this University, this city, the Witwatersrand and the Republic of South Africa. It is a constant reminder to members of Council and Senate to uphold at all times the rights, powers and privileges of the University and its governing bodies.

ACADEMIC DRESS

The academic dress of this University is patterned on that of the Universities of Oxford and Cambridge, with modifications based on the model of the University of London and certain individual features, particularly in the costumes of office bearers and the hoods of degreesof bachelor and master.

Dress for Office Bearers

• The Chancellor wears a scarlet silk gown with a broad facing of black velvet down each side, embroidered in gold and a black velvet cap with gold cord and tassels.

• The Vice-Chancellor and Principal wears a blue silk gown with a broad facing of gold silk down each side, embroidered in blue, the sleeves being lined with gold silk. The cap is of the same design as that of the Chancellor.

• The Chairman of Council wears a black silk gown with a broad facing of red velvet down each side and around the neck, the sleeves being lined with gold silk. The cap is of the same design as that of the Chancellor.

• The academic dress of the Deputy Vice-Chancellors and the Executive Directors is the same as that of the Vice-Chancellor and Principal, except that the colour of the facing and sleeves of the gown and of the cord and tassels of the cap is silver-grey.

• The gown of the President of Convocation is of blue silk, with a broad facing of gold silk down each side, the sleeves being lined with white silk. The cap is the same as that of the Chancellor, but with a blue cord and tassels.

• The Registrar wears a black silk gown with a broad facing of blue silk down each side, bordered with gold braid. The cap is the same as that of the President of Convocation.

• A member of Council wears a black silk gown with a broad facing of gold silk. The cap is the same as that of the Chancellor.

• The gown of the President of the Students’ Representative Council is black with a broad facing of blue satin.

Graduands’ Gowns

• The gowns for all degrees of bachelor and master of the University are black, of the same pattern as the gown for a Master of Arts at the University of Oxford.

• The gown for the degree of Doctor of Philosophy is scarlet, after the University of London pattern.

• The gown for a senior doctorate is the same as that for the PhD, but with a gold satin facing on each side of the gown and with the sleeve button and cord in gold.

The Academic Hood

The academic hood is the principal feature of the costume for holders of our degrees of bachelor and master. The hood for the PhD is standard, regardless of the Faculty in which the degree was obtained. It is scarlet silk, lined with white silk.

Degree Colours

The hoods reflect the colour or colours of a particular degree or associated degrees.

DISTINCTLY WITS

As a public University in South Africa that is over a 100 years old, Wits is proud of its record of achievement as a significant contributor to our society. We contribute capable people to society that are training in their chosen field that are engaged and able to tackle problems using evidence-based solutions. We also engage with our communities to share knowledge that we create so as to make a positive impact on the quality of life. Wits for Good.

Wits is a world-class research-intensive university based on our intellectual excellence, international competitiveness, and commitment to social justice; all of which have a measurable impact.

What makes Wits distinct?

Here are a few of many differentiators:

• An international perspective that helps us maintain high standards in teaching and learning and research, while not distracting us from our place in Johannesburg, South Africa, and Africa. In 2024 Wits authors published articles with co-authors from 199 universities, 94% of which were from countries other than South Africa.

• An intellectual hub of Africa, a founding member of the African Research University Alliance.

• An active and engaged community leader that takes a stand on social issues and is fully committed to the advancement of the public good.

• A growing contribution to the body of knowledge through peer reviewed academic publications: 4563 in 2024 and an average growth rate of 4% per year over the last five years.

• Knowledge contribution that is above global quality averages in several fields including: clinical and pre-clinical health studies (76% above global norms); arts and humanities (58% above global norms); life sciences (36% above global norms); physical sciences (12% above global norms).

• Wits is particularly associated with the study of the fields of virology, particle physics and the Higgs Boson, malaria, archaeology, paleontology, paleoanthropology, violence, local and regional politics, geochemistry, rock mechanics, deep mining, forensic anthropology, climate change, migration, social justice, and many more.

• Proud of the four Nobel laureates and the 99 Rhodes Scholars.

• Proud of our current 42000 students of whom 16600 (40%) are undertaking postgraduate studies and learning to make their own unique contributions to the global knowledge base.

• Proud of our more than 200 000 graduates. More than 90% of Wits graduates obtain permanent employment within 12 months of graduation.

• Proud of its ability to raise external funding to support and drive its research efforts, with contributions exceeding R 2 billion per annum.

ORDER OF PROCEDURE

9 DECEMBER 2025 AT 09:30

The audience will rise as the academic procession enters the hall and will remain standing until the Vice-Chancellor is in place

The Vice-Chancellor will constitute the congregation

The Vice-Chancellor will welcome the graduands and guests

Address to the congregation

Conferment of degrees

The Acting President of Convocation will address the graduates

The Vice-Chancellor will dissolve the congregation

The audience will stand while Ihele is played

Members of the audience are requested to stand while the academic procession leaves the hall and not to leave the hall before the end of the ceremony.

IMPORTANT NOTICE

In the event of load-shedding or power cuts, the Great Hall may become totally dark until the generator comes into operation.

FACULTY OF COMMERCE, LAW AND MANAGEMENT

DEAN: PROFESSOR J COHEN BCom Hons PhD (Witwatersrand)

Doctor of Philosophy

ABUBAKARI, Mohammed Gali Management (WBS)

THESIS: An exploratory study on corruption in Ghana: a cultural perspective

This is an in-depth exploration of the cultural underpinnings of corruption in Ghana, employing the GLOBE cultural framework to develop a context-specific model for assessing corruption. His research investigated how cultural values, social norms, and institutional practices shape perceptions and manifestations of corruption. The study makes significant theoretical, empirical, and methodological contributions to governance and management scholarship, offering culturally grounded insights that inform the design of effective, evidence-based anti-corruption strategies in developing economies.

Supervisor: Dr D Heil

BARNOR, Joel Aflah Management (WBS)

THESIS: The performance of traditional and non-traditional forms of infrastructure procurement options in Africa

The thesis examines the two dominant means of financing infrastructure projects in Africa - either through public sector financing or through a public private partnership (PPP) model. He tests the prevailing notion that PPPs offer greater value for money than public sector financing. Examining a sample of infrastructure projects financed across Africa over the last twenty years, he finds that in fact there is no empirical evidence supporting the commonly stated idea that PPPs always offer greater value for money.

Supervisor: Associate Professor O Kodongo

BROOKBANKS, Darren Ackermann Management (WSG)

THESIS: Towards the transformation of intelligence governance in South Africa

This PhD thesis explores South Africa’s journey towards the transformation of intelligence governance. To achieve the most appropriate balance between efficiency and transparency, the governance of the intelligence sector in South Africa must be transformed through greater control and oversight. Transformation can be theoretically grounded in the philosophy of intelligence culture. Recommendations highlight the theoretical value of intelligence culture towards the transformation of intelligence governance in South Africa and provide a blueprint for what a PHILINT culture could look like in the country.

Supervisor: Professor A Van Nieuwkerk

BRUINTJIES, Coline Ray Christine Law

THESIS: Socio-economic rights and the challenge of violence against women in South Africa

This PhD investigates the relationship between substantive equality, gendered socio-economic rights and poor women’s vulnerability to violence in South Africa. It identifies gendered poverty and violence against women as enormous challenges that plague South Africa and explores whether better access to the goods and services guaranteed by the right of access to housing and the related services can play a role in addressing these challenges. The PhD specifically focuses on the role of the law and courts in addressing these intersecting issues.

Supervisor: Professor C Albertyn

CHIVIZHE, Takunda Victor Management (WBS)

THESIS: Artificial Intelligence adoption and its effects on online retail marketing performance in emerging markets

Despite advancements in digital transformation, digital marketers in emerging markets struggle with strategies that enhance customer experience and personalise services in online retail. This thesis examined the effect of adopting AI digital assistants, chatbots, semantic analysis, image and voice recognition in South Africa, Kenya, and Nigeria. Findings show a positive effect on service quality and customer satisfaction. Recommendations include that marketers adopt AI digital assistants that analyse real-time data to deliver tailored product recommendations, effectively replicating personalised in-store experiences online.

Supervisor: Dr Y Saini

CUDJOE, Senyo Frank Kofi Management (WBS)

THESIS: Essays on bankruptcy prediction and systemic risk in financial institutions

The thesis explores the application of machine learning techniques in bankruptcy prediction for financial institutions integrating model explainability leading to data-driven risk management and early warning systems. The models address the lack of interpretability in other machine learning models and demonstrate the potential of state-of-the art machine learning models in bankruptcy prediction. The study also investigated time-varying financial risk using GARCH and GAS frameworks, analysing systemic risk and identified systemically important financial institutions. The study contributes to improving risk forecasting and developing tools for financial stability assessment.

Supervisor: Associate Professor J Odei-Mensah

DAGADA, Rabelani Management (WSG)

THESIS: Deindustrialisation of the South African Economy

The purpose of this study was to investigate factors which affect the deindustrialisation of the South African economy. The study found that a shortage of skilled labour thwarts reindustrialisation; some tax instruments discourage direct investment and reindustrialisation; and poorly conceived public policy leads to deindustrialisation. The researcher proposed five possible solutions and interventions to reindustrialise the economy. The study yielded theoretical, methodological and practical contributions. Recommendations were made which were aimed at various stakeholders and other scholars.

Supervisor: Dr F Lekaba

DERENGI, Lloyd Tawanda Management (WBS)

THESIS: The role of corporate social responsibility (CSR) in managing risks in the South African retail sector

This study investigated the role of corporate social responsibility (CSR) in managing socioeconomic, environmental, and reputational risks in the South African retail sector. This study was based in Gauteng, KwaZulu-Natal, and Western Cape using three major retailers and their stakeholders. Findings suggest that CSR initiatives in social development, employee well-being, and environmental sustainability reduce business risks, strengthen stakeholder relationships, and enhance productivity. Overall, CSR serves as a strategic tool for sustainable business performance and socioeconomic development in South Africa.

Supervisor: Professor B Moyo

DERICK, Kambale Kahimba Law

THESIS: The responsibility of the United Nations in peace operations: Revisiting the accountability versus immunity debate

The thesis examines United Nations responsibility for damages/injuries caused to individuals in peace operations, with a particular focus on the mechanisms for providing reparation. It highlights the discrepancy between normative developments and reality on the ground as victims are left to fend for themselves. By suggesting the amendment of Status-of-Forces Agreements, the study provides practical legal pathways that the UN and countries that are serious about protecting the rights of victims could resort to in fostering a culture of accountability.

Supervisor: Professor L Chenwi

KUFORIJI

, Olanrewaju Abiodun Law

THESIS: The regulation of restrictive horizontal and vertical competition practices in Nigeria - A comparative analysis

The candidate’s thesis advocates for legislative reform in the regulation of anti-competitive practices in Nigeria. He identifies the inherent regulatory framework weaknesses where vertical and horizontal practices are treated the same contrary to international norms. Based on international best practices, he proposes law reform that would adequately distinguish between these practices in a manner that promotes competition in Nigeria.

Supervisor: Professor M Marumoagae

LAMUNO, Grace Flavia Law

THESIS: A critical evaluation of the effectiveness of the corporate rescue procedure in Uganda: a comparative analysis

The candidate’s thesis discusses the Ugandan business rescue procedures from a comparative perspective. She recommends overhauling the Ugandan corporate rescue legal framework. She argues that measures should be introduced to limit liquidations and save more companies in Uganda. She recommends a split-framework insolvency model that can accommodate large, medium, and small companies, which she presents as draft legislation on corporate rescue.

Supervisor: Professor M Marumoagae

LANGA, Mandlenkosi Andrew Management (WSG)

THESIS: Disrupting masculinities, gender-based violence and unconventional socialisation at Kgosi Mampuru Prison

This thesis offers an original and compelling contribution to scholarship on gender-based violence and masculinities in South Africa. Drawing on feminist, postcolonial, and African-centred ethics, it analyses the emotional and structural conditions that shape violent masculinities within Kgosi Mampuru Correctional Facility. Through reflective and ethically grounded fieldwork, it reveals how incarcerated men confront harm and begin imagining alternative masculinities. By foregrounding emotional justice and resocialisation, it advances feminist scholarship and deepens methodological approaches to researching violence.

Supervisor: Associate Professor H Ndhlovu

LENGARAM, Ezekiel Ngitoria Management (WSG)

THESIS: Essays on Tax effort and Fiscal Balance: a case of selected African Economies

The thesis addresses critical fiscal challenges in Africa, including low tax revenues, debt vulnerability, and political influences on budget balance. Employing state of the art econometric techniques on panel data, the study demonstrates how informality, economic complexity, electoral business cycles, and exogenous shocks such as COVID-19 shape tax capacity and fiscal sustainability in 25 countries. The findings offer actionable policy insights for strengthening revenue mobilization, institutional resilience, and economic transformation across African nations.

Supervisors: Associate Professor M Benhura and Dr N Mahonye

MAFULELA, Tulani Musawenkosi Law

THESIS: Vicarious liability and corporate groups

This study problematizes how corporate groups are often structured to let the holding companies of multinational enterprises escape liability for harms caused by their global subsidiaries. This frequently leaves victims without effective remedies. To address this, the thesis proposes constitutionally informed reforms to the South African law of delict that enable liability for holding companies in defined cases. This thesis contributes novel insights to South African company law, constitutional law, and delict, while advancing global debates on business and human rights.

Supervisor: Associate Professor E Zitzke

MAMBURU, Mulalo Phathutshedzo Economics

THESIS: On sovereign risk and the financial system in South Africa

This thesis explores local currency sovereign risk and its influence on the financial system in South Africa. It employs a measure of local currency sovereign risk in empirical analyses on the role of sovereign risk and exchange rate risk as drivers of changes in nominal bond yields, and the impact of sovereign risk on emerging-market banks through their holdings of government bonds. Finally, it considers the impact of fiscal policy and sovereign risk on the conduct of monetary policy.

Supervisor: Professor G Farrell

MARFO, Emmanuel Management (WBS)

THESIS: Investment trends and strategies of African Philanthropic Organisations: the case of faith-based organisations in Ghana

This doctoral research examined how faith-based philanthropy in Ghana employs strategic investment to achieve social impact. His findings reveal that these organisations are increasingly adopting structured, accountable, and mission-driven investment strategies rooted in Social Investment Theory and Social Exchange Theory. The study advances understanding of how philanthropy integrates altruism, sustainability, and innovation to foster inclusive community development across Africa.

Supervisor: Professor B Moyo

MASHOENE, Motlanalo Kgodisho Management (WBS)

THESIS: Financial technology and financial inclusion in emerging and developing economies

The thesis examines the relationship between FinTech and financial inclusion in 28 Emerging and Developing Economies. Constructing a novel index through PCA, the study employs System GMM to quantify FinTech’s positive effect. It further reveals that institutional quality drives digital financial inclusion long-term and that such inclusion promotes growth and reduces poverty. The thesis provides robust, multi-method evidence for policymakers on leveraging technology for inclusive financial development.

Supervisors: Professor E Schaling and Dr G Tweneboah

MATEE, Lehlohonolo John Paul Law

THESIS: Rethinking ownership and control of state-owned enterprises in Lesotho

The candidate’s thesis focuses on control and ownership of state-owned enterprises in Lesotho. The thesis makes substantial contribution towards critical issues facing Lesotho’s economy and its broader contributions to corporate governance. It will also enhance and enrich academic discussions on corporate governance within SOEs in Lesotho, an area that has often been overlooked in scholarly debates and relegated to political rhetoric. A core contribution is the proposal of the `Kharetsa’ model, a unique, bespoke ownership and control model for Lesotho’s SOEs. Further, the thesis potentially informs further policy and legislative interventions.

Supervisor: Associate Professor H Kawadza

MATTHEWS, Thandiwe Law

THESIS: Advancing substantive equality in South Africa: Elite contestations surrounding constitutionalism, gender and the right to social assistance

For a thesis which explores elite contestations surrounding constitutionalism, socio-economic rights and social policy as a mechanism of redress for historical injustices that are a direct outcome of colonialism and apartheid in South Africa. Drawing on social assistance as a case study, she finds that South Africa’s current approach overlooks the gendered power dynamics that impact the realisation of socio-economic rights, subsequently hindering the achievement of substantive equality.

Supervisor: Professor C Albertyn, Prof CIM Arts and Dr JD Handmaker

MBELE, Ayanda Mvuyisi Management (WBS)

THESIS: Antecedents to the success of clinical decision support systems in healthcare within a limited resource context

This thesis employed a multi-case research approach to investigate the factors influencing the success of Clinical Decision Support Systems in healthcare. It highlights how public-private partnerships, context-sensitive design, and digital accountability help overcome resource constraints. The study provides empirical, methodological, and theoretical insights, offering a practical roadmap for healthcare practitioners, managers, and policymakers to enhance the quality of clinical care and system efficiency in resource-constrained settings. It contributes to understanding how digital strategies can optimise healthcare delivery under constrained conditions.

Supervisors: Professor B Armstrong and Associate Professor T Carmichael

MBULI, Siphephelo Lindamalindisa Law

THESIS: Legal aspects of the current framework regulating directors’ and senior managers’ indemnification and directors’ and officers’ liability insurance in South Africa

The candidate writes about: ‘The challenge for companies and policymakers in South Africa to develop innovative approaches that promote a healthy balance between two equally valid and competing interests: holding directors accountable for egregious conduct, and protecting them from liability for honest errors of judgment. His concern is for the relooking and re-envisioning of the current legal enforcement framework under the Companies Act 71 of 2008 that does not deal fully with the director liability problem, which has become more pressing in South Africa.’

Supervisor: Professor T Mongalo

MOHATONYANE, Letsie Elliot Economics

THESIS: Household finance and wealth inequality in South Africa: Evidence from the national income dynamics study survey

The candidate’s thesis examines how household balance sheet components shape South Africa’s wealth inequality. It finds that business assets heighten concentration, while real estate and diversification promote equity and financial resilience. By offering a fresh perspective on the production and reproduction of inequality in South Africa, the study expands household finance research in a highly unequal economy, introduces new indicators of diversification and life event impacts, and offers a comprehensive account of factors driving inequality, including education, employment, and race.

Supervisors: Associate Professor M Benhura and Associate Professor T Gwatidzo

MOKOENA, Khethang Management (WBS)

THESIS: Non-linear effects of government size and institutional quality on macroeconomic performance in Sub-Saharan African countries

This study examined the non-linear effects of the size of government and quality of institutions on the macroeconomic performance of Sub-Saharan African (SSA) countries. The evidence is that government size and institutions have threshold effects on output volatility and inflation. The threshold estimates can be used by the authorities in formulating fiscal policies to reduce output volatility and inflation in SSA, thereby contributing to sustainable economic growth in countries. This can then be leveraged to enhance social security for the benefit of the unemployed, children, the disabled, and the elderly.

Supervisor: Professor E Schaling

MONAMETSI, Gladness Lennie Management (WBS)

THESIS: Liquidity dynamics of exchange traded funds in developing markets

This study sought to ascertain the effects of Exchange Traded Funds (ETFs) on the liquidity of emerging capital markets. To this end, the study analyzed the effect of the introduction of ETFs on the liquidity of underlying assets; explored the liquidity risk associated with ETFs; and examined the effects of ETFs on market efficiency. The results showed that ETFs are broadly associated with reduced liquidity; and play different roles in price formation, with varying impacts on short- and long-run efficiency.

Supervisor: Associate Professor O Kodongo

MTHUNZI, Mncane Management (WBS)

THESIS: The corporate perspective on facilitating economic inclusion in large companies in South Africa

The candidate’s doctoral research presents a pioneering investigation into how large corporations in South Africa can transition from mere compliance to becoming genuine agents of economic transformation. His body of work offers a bold, empirically grounded and theoretically integrated corporate framework that advances academic scholarship and promotes systemic inclusion and economic justice in the real world.

Supervisor: Dr M Matshabaphala

NDEGWA, Ephraith Igoki Law

THESIS: Towards a comprehensive anti-corruption strategy in Kenya in the wake of the 2010 constitutional dispensation

This thesis critically evaluates Kenya’s post-2010 anti-corruption legal regime. It examines the scope of public sector corruption, the measures adopted, and the structural gaps that weaken enforcement. It contends that, although integrity has been constitutionalised and specialised bodies created, weak accountability and an unenforceable code of conduct perpetuate systemic corruption and allow impunity in public office. Using Integrated Social Contract Theory, the study exposes the gap between law and practice and advances reform proposals, drawing on comparative insights to bolster Kenya’s anticorruption framework.

Supervisor: Dr K Moyo

NKOMONDE, Lindo Management (WSG)

THESIS: The coding of Black Economic Empowerment and redistribution failure in post-apartheid South Africa

The study provides a critical analysis of the stated aim of the Broad-Based Black Economic Empowerment (BBBEE) policy to redress the racialised economic inequities of the apartheid past. The study conclusion is that when law is enacted for the specific purpose of being a catalyst for economic transformation, but redistribution proves ineffective, that it is important to enquire if the legal conceptualisations of a deracialised economy effected through redistribution are actually consistent or in contradiction with those found in government policy.

Supervisor: Professor R Van Niekerk

NKOSI, Nomsa Phindile Economics

THESIS: Essays on household energy poverty, energy transition, and women bargaining power in South Africa

Comprising three interrelated essays, the candidate’s doctoral thesis makes a significant contribution to understanding household energy poverty and transitions in South Africa. The first essay identifies household income thresholds shaping movement toward cleaner energy, the second examines the association between women’s decision-making authority and the adoption of modern fuels, and the third estimates the effect of old-age pensions on reducing energy poverty. Together, the thesis provides a unified analysis of the structural, gender, and policy drivers of energy poverty and transition.

Supervisors: Associate Professor D Kutela and Associate Professor J Dikgang

OKOFO-DARTEH, Daniel Business Sciences (Management)

THESIS: Roles of dynamic capabilities, managerial mental models, digital transformation and organizational flexibility in SME performance

This thesis provides fresh insights into how dynamic capabilities shape SME performance. Using a cross-country, cross-sectional design, it shows that the effect of dynamic capabilities is contextual. SME owner-managers’ mental models and digital transformation sequentially enhance performance, advancing dynamic capabilities, upper echelons, and affordance actualization theories. Organizational flexibility further differentiates this effect. The study offers guidance for practitioners and policymakers in the digital era, emphasizing capability development and supportive digitalization-based policies to strengthen SME resilience and performance.

Supervisors: Associate Professor T Anning and Dr N Radebe

ONDIEK, Hanna Atieno Management (WBS)

THESIS: Social entrepreneurship and women’s economic and social empowerment in Kenya

This study explores how social entrepreneurship fosters women’s economic and social empowerment in Nairobi. Grounded in Empowerment Theory and the Capability Approach, and informed by social capital and African feminist lenses, it analyses 39 interviews with women social entrepreneurs. Findings reveal that innovation, collective networks, and negotiated agency translate social entrepreneurial practice into layered empowerment outcomes, advancing autonomy, participation, and opportunity within Kenya’s urban socio-economic landscape.

Supervisor: Associate Professor J Mati

RATSIMANETRIMANANA, Radomalala Management (WBS)

THESIS: Human capital and business performance of Malagasy entrepreneurs: the influence of perceived behavioural control and transaction costs

The thesis provides a unique entrepreneurship human capital perspective by examining the effects of experiential knowledge and prior knowledge on performance while accounting for the moderating role of perceived behavioural control and the mediating role of transaction costs. The study took place in Analamanga, the central region of Madagascar where a sample of 465 self-employed individuals were surveyed. The study’s positive findings and novel insights have significant impact for research-based policies, specifically tailored to the unique socio-economic landscape of Madagascar.

Supervisor: Professor B Urban

SAKA, Abraham Nii Adoteye Management (WBS)

THESIS: Essays on financial inclusion and women empowerment: the African perspective

This thesis constructs a financial inclusion index for sub-Saharan Africa using the principal component analysis and investigates the short-term and longterm drivers of financial inclusion. The study found that though the average financial index is low in Africa, there is an upward trajectory in recent years. Further, it explores the threshold effect of financial inclusion on economic growth, income inequality, and women empowerment and found that financial inclusion positively impacts economic growth, income inequality and women empowerment after threshold points.

Supervisor: Professor E Schaling

SALIFU, Shaibu Management (WBS)

THESIS: Essays on philanthropy and women economic empowerment in Ghana

This thesis comprises three empirical essays that examine philanthropy’s role in advancing women’s economic empowerment in Ghana. It investigates the effects of corporate foundations on women’s financial inclusion, the impact of philanthropic initiatives on female labour force participation, and the relationship between philanthropic giving and financial inclusion. Drawing on qualitative and quantitative data, the study highlights how Ubuntu-inspired philanthropy can support inclusive development and offers actionable insights for enhancing gender-responsive philanthropic practice in Ghana’s socio-economic context.

Supervisors: Professor B Moyo and Associate Professor J Mati

SENANU, Bright Marketing

THESIS: Reconstructing information (A) symmetry in marketing: the consumer outcomes of wellbeing and illbeing

This doctoral thesis redefines the concept of information asymmetry within marketing by introducing the constructs of Customer-Brand Information Asymmetry (CBIA) and Symmetry (CBIS). Employing a mixed-methods approach, it demonstrates that CBIA contributes to consumer illbeing through mechanisms such as distrust and uncertainty, while CBIS fosters trust and eudaimonic wellbeing. The study pioneers validated measurement tools and reveals the nuanced effects of information dynamics across varied market contexts. It makes significant theoretical, methodological, and policy contributions, advocating for transparent, equitable, and human-centric marketing practices that address both digital overload and informational scarcity in global consumer ecosystems.

Supervisor: Associate Professor T Anning

SHONGWE, Mbongeni Welcome Management (WBS)

THESIS: The interplay between liquidity gluts, credit markets, and economic growth in Sub-Saharan Africa

This study comprehensively analyzes liquidity gluts across Sub-Saharan Africa using advanced econometric methods. The research found that excess liquidity significantly impacts economic growth through specific transmission mechanisms, with institutional factors playing crucial moderating roles. Key findings revealed ineffective coordination between monetary and fiscal policies hampers liquidity management. The study discovered that targeted financial regulation improvements and strategic promotion of productive investments are essential for managing excess liquidity effectively, ultimately supporting sustainable economic development and enhanced financial stability throughout the region.

Supervisor: Professor I Alagidede

SIMELANE, Phumelele Nolwazi Carol Management (WSG)

THESIS: Skilled emigration from the South African petrochemicals sector: Determinants, retention strategies and implications

The candidate’s doctoral research addresses South Africa’s critical loss of engineering talent from the petrochemical sector. Her study exposes the economic, political, and organisational forces driving skilled emigration and demonstrates how these weaken national development and industrial innovation. Through rigorous mixed-methods research, she proposes practical retention and policy strategies to sustain vital technical expertise. Her work offers powerful, evidence-based insights for rethinking talent management and strengthening South Africa’s industrial and economic resilience.

Supervisor: Professor N Pophiwa

TACKIE

, Nii Nookwei Marketing

THESIS: Advancing blockchain use in marketing: the impact of permission-based blockchain technology on marketing and customer behavioural outcomes

This thesis offers pioneering insights into how permission-based blockchain technology transforms marketing outcomes. Using a rigorous longitudinal experimental design, the study reveals that blockchain significantly improves customer engagement and firm trustworthiness, which in turn mediate positive behavioural outcomes. Importantly, it shows that privacy concerns differentially influence these effects, advancing Legitimacy and Customer Value Theories. The study provides essential insights for practitioners and policymakers navigating the digital age, shifting focus from personalisation to trust building mechanisms.

Supervisor: Associate Professor T Anning

THAKUR, Cherese Law

THESIS: Filling the accountability vacuum: Judicial activism and restraint in cases concerning state capture, corruption and egregious public maladministration in South Africa

Over the last two decades the South African judiciary has frequently been called upon to fill an ‘accountability vacuum’ in cases concerning state capture, corruption and egregious public administration. This thesis argues that, guided by the constitutional limits on their powers as well as the need to safeguard the institutional security of the judiciary, the courts have successfully steered a course between activism and restraint in such cases.

Supervisor: Professor C Hoexter

VESTER, Amanda

Management (WBS)

THESIS: Navigating drone-based ethical decision making: a technoethics framework for the responsible use of drone technology within the cold supply chain industry of South Africa

This study explores the ethical implications of drone adoption within South Africa’s cold supply chain industry. Grounded in a technoethics framework, it employs a scoping literature review and qualitative interviews with senior decision-makers to examine emerging ethical concerns linked to commercial drone use. The research proposes a scalable and adaptable ethical decision-making framework to help mitigate ethical risks while leveraging the commercial benefits of drone technology. The study contributes to responsible innovation and the ethical navigation of unmanned systems in evolving logistics environments.

Supervisor: Professor E Schaling

ZENELABDEN, Nouran Abbas Mostafa

Economics

THESIS: Energy transition and household well-being: Fuel stacking, power reliability, and solar adoption dynamics

The thesis significantly contributes to energy transition literature by empirically investigating household energy decisions in South Africa. Zenelabden combines energy justice theory with advanced econometrics to reveal surprising findings on fuel stacking and health impacts. It displays scholarly sophistication by addressing complex policy issues with provincial implications. Methodologically, it excels by using a double machine learning approach for household energy decisions. The findings advance theoretical literature and offer practical implications for sustainable development policies in the global South.

Supervisors: Associate Professor J Dikgang and Associate Professor A Oyenubi

FACULTY OF ENGINEERING AND THE BUILT

ENVIRONMENT

DEAN: PROFESSOR T MAJOZI

BSc(Eng) MSc(Eng) (Natal) PhD (UMIST) CEng PrEng FIChemE FAAS MASSAf FWISA

FSAAE FSAAE

Doctor of Philosophy

BASSON, Nicol Mechanical, Industrial and Aeronautical

THESIS: A computational fluid dynamic study on the relief of intraocular pressure in the human eye in glaucoma surgery

The project utilises Computational Fluid Dynamic (CFD) methods to investigate two Ophthalmic surgical procedures, Trabeculectomy and Non-Penetrating Deep Sclerectomy and showed differences in the resulting flow field in the immediate post-operative state. The candidate further investigated these for biometry of European and African population groups also showing differences. The findings agree with clinical observations and suggest considerations for patient specificity in treatment considerations and provides the key first steps in developing CFD as a tool forimproving ophthalmic patient outcomes.

Supervisors: Associate Professor S Williams and Associate Professor W Ho

DU TOIT, Francois Paulus

Electrical Engineering

THESIS: Modelling and optimisation of the turn-off switching transition in fastswitching power semiconductor devices

This research developed a new theoretical model using circuit theory to better understand and minimise voltage overshoots during switching transitions in fastswitching power electronic devices. The insights generated by the model provide the groundwork for overcoming the limitations imposed on switching speed due to parasitic inductance in future Ultra-Wide Bandgap semiconductors.

Supervisor: Professor I Hofsajer

EARDLEY, Matthew Peter

Mechanical, Industrial and Aeronautical

THESIS: A novel clustering approach for minimizing transportation lanes of complex supply chain networks based on economic significance

The candidate is awarded the degree of Doctor of Philosophy in Industrial Engineering for his thesis, “A novel clustering approach for minimizing transportation lanes of complex supply chain networks based on economic significance”. The research introduces the Lane Elimination Clustering Problem and effectively applies a newly adapted multi-objective evolutionary approach, advancing optimisation methods in transportation management.

Supervisor: Dr J Buhrmann

FELIX, Sandra Lourenco

School of Architecture and Planning

THESIS: Desiring conscious, critical, careful practice-linking autoethnographic practice-based architectural design research with transformative pedagogy

This action research conducted in the School of Architecture and Planning at the University of the Witwatersrand adapted post-graduate autoethnographic research methods for use in undergraduate architectural design studio projects, within a parallel-engaged pedagogy of care. This proved transformative for students and teachers, producing conscious personal self-awareness and critical positioning within a post-colonial and post-Apartheid practice landscape.

Supervisor: Associate Professor A Janse van Rensburg

GAVRILOV, Zethuzonke Bella

School of Architecture and Planning

THESIS: Intersecting rationalities: Negotiating a process of inclusion between the minibus taxi Industry and the BRT system

The thesis explores negotiations between the taxi industry and the City of Ekurhuleni over BRT implementation, considering how differences and conflicts were addressed. It provides a sympathetic critique of the idea of conflicting rationalities, showing that there is more intersection and mutuality between actors than often recognised, suggesting the potential for collaborative forms of engagement.

Supervisors: Professor P Harrison and Professor A Todes

KANJEE, Janina Prakash

Civil Engineering

THESIS: Estimating the potential residual expansion due to Alkali-Silica Reaction (ASR) in in-service reinforced concrete structures

The candidate investigated the deterioration of a 78-year-old reinforced concrete railway bridge in Johannesburg affected by alkali-silica reaction (ASR), a chemical reaction that can result in the expansion of concrete. She applied a range of visual and mechanical techniques to characterise and quantify the ASR damage and established correlations between micro-scale ASR strains and conventionally measured macro-scale deformations. Her research provided insight into the performance of the ASR-affected structures, providing information on management of the ageing infrastructure to extend its service life.

Supervisor/s: Prof Y Ballim and Associate Professor M Otieno

MOKGWARE-MONOSI, Neltah Tshepiso

School of Construction Economics and Management

THESIS: Investigation into the causes and effects of the persistence of gender norms leading to Gender Inequality in the Real Estate Industry: examining it’s impact on female participation in Botswana, South Africa and Zambia

This research investigated how gender norms shape female participation in the real estate industries in Botswana, South Africa, and Zambia. Employing a mixed-methods, multi-case study approach, the study finds that women’s career choices are driven by ambition and opportunity; however, the persistence of structural barriers restricts women’s advancement in technical and leadership roles.

Supervisors: Dr K Cheruiyot and Dr P Simbanegavi

MUKE, Pathy Musema

Mining Engineering

THESIS: A dynamic long-term and medium-term integrated open-pit mine production scheduling system based on the genetic algorithm.

Optimisation of the three interconnected (long-term, medium-term and short-term) open-pit mine production scheduling stages, requires concurrent not standalone optimisation of the stages to ensure spatial and/or temporal alignment between them. Accordingly, the candidate developed a MixedInteger Programming model solved using the genetic algorithm. The integrated approach generated comparable net present values but achieved 100% temporal and spatial alignment, compared to best-known feasible linear programming relaxation solutions obtained using a TopoSort heuristic algorithm.

Supervisors: Dr T Tholana, Professor C Musingwini and Professor M Ali

NDLOVU, Andrew Metallurgy and Materials

THESIS: Statistical modelling of the leaching of Polycrystalline Diamond Compacts (PDCs) for integration into the product design process

This thesis optimised high-pressure high-temperature (HPHT) sintering for manufacturing polycrystalline diamond compacts (PDCs) with enhanced leachability and performance using the sintering parameters of pressure, temperature and holding time. A novel in situ pressure calibration method was developed and validated using a cubic press. The effect of thermocouple placement on temperature measurement accuracy was also studied.

Supervisor: Professor L Cornish

OHENE-KWOFIE, Daniel School of Electrical and Information Engineering

THESIS: Design, implementation and performance evaluation of an elastic partitioned global address space storage (EPGASS)

Big data has a speed bump: I/O cannot keep pace with modern processors. The candidate proposed and validated EPGASS, a revolutionary in-memory storage system using commodity hardware. EPGASS aggregates physical memories into one elastic global address space, crushing bottlenecks at teracale speeds and keeping data dancing between RAM and external disks.

Supervisors: Professor S Hazelhurst and Dr E Otoo

PIETRA, Francesco Mechanical, Industrial and Aeronautical

THESIS: Evaluation of the relationships between measured archery bow performance and archer sensations

In the sport of archery, the complex interaction between the archer and the bow is of fundamental importance to guarantee performance. Unfortunately, there is no literature to support archers in selecting their bows. In this thesis, a mixed research methodology is utilised to evaluate the relationships between the performance, the design and the athletes’ sensations in using archery equipment. This thesis describes how the methodological approach was tested and refined as it was applied to investigations of increasing complexity.

Supervisors: Associate Professor R Reid and Associate Professor P Loveday

RAMLUCKUN, Rajesh Chemical Engineering

THESIS: BRICS (original 5) Policy Outlook, Transitional Electricity Production Technologies, Social Impact and Funding Models

This thesis investigates the Just Energy Transition within the BRICS countries (Brazil, Russia, India, China, and South Africa), with a particular focus on energy policy, technological innovations, social impact, and green finance. Using a comparative case study approach, the thesis highlights the lessons learned from BRICS countries’ experiences in implementing just energy transitions, focusing on best practices and challenges faced. Special attention and recommendations have been given to South Africa, where energy poverty, socio- economic inequalities, and dependence on coal have created significant barriers to a just transition.

Supervisors: Dr N Malumbazo and Dr L Ngubevana

ROSEN, Benjamin Electrical Engineering

THESIS: Information-Theoretic clustering techniques for correlated sources in network content caching

This research tackles the complexity of managing correlated sources of internet data. It develops efficient information-theoretic clustering algorithms to simplify and efficiently manage network content caching. These algorithms offer nearoptimal results with predictable performance, which is crucial for reducing network traffic and making the system more practical.

Supervisor: Professor L Cheng

SMITH, Janet

School of Chemical and Metallurgical Engineering

THESIS: Bioremediation of Acid Mine Drainage Using Grass

This research investigates a sustainable biological method to treat acid mine drainage (AMD) from South African coal mines, using co-located grasses and naturally occurring sulfate-reducing bacteria. Waste grass is used to produce clean water from AMD, supporting a circular economy and helping tackle South Africa’s water, energy, and food challenges.

Supervisors: Associate Professor L Van Dyk, Associate Professor K Harding and Professor C Sheridan

TAKALANI

, Rofhiwa Lutendo Edward Electrical Engineering

THESIS: Development of energy management strategies for Port Cranes

Development of energy management strategies for Port Cranes

This research developed an optimal energy management system for port cranes to reduce electricity consumption, recycle braking energy, and enhance efficiency. By combining batteries and supercapacitors and utilising optimised control methods, the system reduces the power drawn from the grid, making crane operations faster, greener, and more cost-effective, thereby supporting future renewable energy use at ports.

Supervisor: Associate Professor L Masisi

FACULTY OF HEALTH SCIENCES

DEAN: PROFESSOR SA MADHI

MBBCh MMed PhD (Witwatersrand) FCPaeds(SA) MASSAf RSSAf TWAS CBE

Doctor of Philosophy

AGARWAL, Priyanka

THESIS: Targeting cytochrome bc1 of Plasmodiumfalciparum

Pharmacology

This thesis addressed the global challenge of drug-resistant malaria by designing and evaluating novel antimalarial compounds targeting the Plasmodium mitochondrial cytochrome bc1 complex. Through a combination of in silico and in vitro approaches, diverse chemical scaffolds, including naphthoquinonetriazole hybrids, were evaluated for binding affinity and inhibitory activity against atovaquone-resistant Plasmodium parasites. The innovative use of molecular modelling, along with pharmacokinetic and toxicity profiling exemplifies the power of computational tools in early-stage drug discovery, contributing significantly to the development of safer, more effective antimalarial therapies.

Supervisors: Professor RL van Zyl and Dr CJ van der Westhuizen

AMISSAH NYARKO, Alberta

Physiotherapy

THESIS: Development of a protocol for holistic paediatric burns management, Korle Bu Teaching Hospital, Ghana

The study developed guidelines for holistic paediatric burns management at the Korle Bu Teaching Hospital, Ghana. Using a four-phase mixed methods design, the study reviewed medical records, qualitatively explored the experiences of patients and their caregivers, perspectives of healthcare providers, and engaged rehabilitation experts through a modified Delphi process. The guidelines for holistic paediatric burns management consists of 40-item context-specific recommendations to guide paediatric burn care in Ghana. The study thus contributes significantly to improved multidisciplinary management of paediatric burns in low-resource settings.

Supervisors: Dr N Benjamin-Damons and Dr S Pilusa

BABALOLA, Olukemi Solabomi Public Health

THESIS: Effectiveness of training programmes for and assessment of quality of care provided by community health workers undertaking comprehensive care in lowand middle-income countries

This study examined community health workers (CHWs) training programmes for comprehensive care in low- and middle-income countries. Training experiences, effectiveness, assessment methods, and their utilities were explored through two systematic reviews, as well as validation and cross-sectional studies. In two South African provinces, a validated tool identified factors influencing CHWs’ performance. To enhance CHW performance, the study recommended better integration of training programmes covering the wider comprehensive care scope, alongside ongoing performance assessment, multi-layered support systems, and adequate financial investment.

Supervisors: Professor F Griffiths and Professor J Goudge

BENNIN, Fiona Alison Paediatrics

THESIS: The home environment and play: the co-creation of an intervention aimed at increasing participation in infant play in a low-income community in Johannesburg, South Africa

In Soweto, a mobile health programme was co-created and tested to help mothers understand the importance of play for their babies. The PLAY study moms embraced the idea and changed how they viewed active play, giving their little ones opportunity to move and explore. While overall health literacy scores didn’t shift, the trial revealed how much potential lies in supporting parents and if technological hurdles and resource limitations can be overcome, the impact for children’s development could be game-changing.

Supervisors: Dr A Prioreschi and Professor S Norris

BHIKA, Akaashni Nareschandra Anatomical Sciences

THESIS: The effect of binge-alcohol consumption on the development of adolescent Sprague Dawley rat mandibles

This study investigated the effects of binge alcohol exposure on the development of the mandible in adolescent Sprague Dawley rats to mimic alcohol abuse by adolescents. The methodology included microtomography, osteometry, tensile testing, cytoarchitecture analysis, and immunohistochemistry. The results showed that alcohol adversely impacts mandibular bone growth, particularly in female rats. Several structural and cellular bony tissue changes were observed to persist even after a period of abstinence from alcohol exposure.

Supervisors: Dr D Pillay and Professor AO Ihunwo

BRIEL, Sonia Physiotherapy

THESIS: An evidence-based assessment model for the comprehensive assessment of the Scapulohumeral Complex

An assessment model for the scapulohumeral complex, using measurable evidence-based outcomes was established with the current study using a mixed-method design. A significant contribution to the assessment of the scapulohumeral complex specific to the physiotherapy profession was established with the current study. Based on the findings of this study, key modifiable musculoskeletal factors contributing to the biomechanical and arthrokinematical stability of the scapulohumeral complex were included in the comprehensive assessment model for the scapulohumeral complex.

Supervisor: Associate Professor C Brandt

CANTRELL, Sarah Jane Paediatrics

THESIS: The impact of maternal mental health on synchrony in mother-infant interactions

This research examined how maternal mental wellbeing shapes bonding moments with infants. Through interviews and frame-by-frame video analyses of eye contact and facial expressions, the study found mothers with mild depression were far less likely to turn shared moments into smiles, with stress and isolation eroding trust. Despite difficult living conditions, mothers showed determination to connect. Findings emphasize the importance of culturally sensitive support that nurtures hope and emotional connection during the first 1,000 days of life. This study was conducted in Soweto, South Africa.

Supervisors: Dr A Prioreschi and Professor R Pearson

CARRIM, Maimuna Clinical Microbiology and Infectious Diseases

THESIS: Understanding carriage and transmission of Streptococcus pneumoniae through a community cohort study in South Africa

Through longitudinal, community-based research, this candidate explored how respiratory viruses, HIV infection, and host factors influence Streptococcus pneumoniae (pneumococcus) colonization and the nasopharyngeal microbiome. The findings showed that RSV infection increases pneumococcal colonization density and that influenza infection disrupts microbial composition in the nasopharynx, particularly among children and people living with HIV. This research provides new insights into viral-bacterial interactions and informs prevention strategies aimed at reducing severe respiratory illness in high HIV prevalence settings.

Supervisors: Dr N Wolter and Professor A von Gottberg

DU PREEZ, Robin

Anatomical Sciences

THESIS: Neuroprotective effects of simvastatin pre-treatment against alcoholinduced brain damage in adolescent mice

This thesis investigated the neuroprotective potential of simvastatin against alcohol-induced brain damage during adolescence, a period of heightened vulnerability to neurotoxicity. Using a mouse model, the study examines oxidative stress, neuroinflammation, and neurogenesis in the hippocampus and prefrontal cortex through biochemical and histological analyses. Simvastatin mitigates alcohol-related neurotoxicity via antioxidant and anti-inflammatory mechanisms, with sex-specific effects. The findings provide insight into simvastatin’s potential as a candidate for targeted neuroprotective interventions during critical stages of brain development.

Supervisor: Associate Professor OI Olateju

ERZSE, Agnes Public Health

THESIS: Accelerating progress on maternal and child nutrition by addressing social needs in urban South Africa

This thesis developed a social needs framework to explain persistent malnutrition in Soweto, where services exist but are unevenly used. Social needs, distinct from structural determinants, are requisites identified by mothers that shape their ability to benefit from services. Using mixed methods, the study identified six needs limiting the use of eight services perceived as important for nutrition and prioritized five interventions to address them. The approach bridges gaps between upstream and immediate responses, offering a lens to improve mothers’ ability to benefit and reduce nutrition inequities.

Supervisors: Professor N Christofides, Professor C Desmond, Professor K Hofman and Professor M Barker

EVANS, Jonathan James

Human Genetics

THESIS: Exploring the extent and impact of genetic mosaicism in African populations

This thesis implemented advanced bioinformatic pipelines to characterise genetic mosaicism in two distinct African cohorts. Novel candidate pathogenic mosaic variants were identified in South African children with developmental disorders. Mosaic chromosomal alterations driving clonal haematopoiesis were detected in ageing African adults, with notable geographic and demographic variation. This study is the largest characterisation of genetic mosaicism in continental Africans to date, with novel insights into genetic variation and disease aetiology in underrepresented populations, advancing equity in genomics research.

Supervisors: Professor Z Lombard and Dr N Carstens

KALINJUMA, Aneth Vedastus Public Health

THESIS: Transition dynamics and treatment outcomes among HIV-positive patients of Ifakara, Tanzania: a comprehensive analysis for optimizing the existing longitudinal cohort data

This thesis investigated the transition dynamics and virologic outcomes among HIV-positive patients enrolled in care at the Chronic Disease Clinic of Ifakara, Tanzania. The research demonstrated an increased proportion of ART initiation and improved treatment outcomes over time. However, high rates of loss to follow-up and re-engagement were observed over the years and it was common in the beginning. The application of longitudinal methods has revealed the underlying distribution of engagement in care over time and areas that require mitigation.

Supervisor: Associate Professor K Otwombe

KENMOGNE, Vanelle Larissa Surgery

THESIS: High-throughput drug repurposing for precision medicine in the treatment of leukemia in South African patients

Leukemia remains a major therapeutic challenge, especially in resource-limited settings. This study employed high-throughput screening of FDA-approved drugs on patient-derived cells to identify effective treatment options. Irinotecan and nilotinib demonstrated potent and synergistic effects on immune modulation and cell viability. Integrating flow cytometry and molecular docking, the research provided insight into molecular interactions and variability in drug response, contributing to the development of personalized leukemia therapies in South African patients.

Supervisors: Professor P Fru, Dr D Balaji Thimiri Govinda Raj, Professor E Nweke and Dr M Takundwa

KHAMBULE, Lungile

Chemical Pathology

THESIS: Screening and diagnosis of gestational diabetes mellitus in an African population

This multi-centre prospective study investigated methods for screening and diagnosis of gestational diabetes mellitus (GDM) in South Africa, where risk factor-based testing fails to detect many cases. The study compared the performance of glucometers, fasting plasma glucose (FPG) and selected biomarkers to the gold standard, the oral glucose tolerance test (OGTT). Results demonstrated that FPG had high sensitivity (94%) and specificity (100%) and could reduce unnecessary OGTTs by 77%. Moreover, valine, showed potential as an early-pregnancy biomarker for GDM screening.

Supervisors: Professor J George, Professor N Crowther and Professor L Chauke

KILIMA, Stella Peter Public Health

THESIS: Social and economic consequences of pulmonary tuberculosisperspectives of patients, their families, the community and healthcare providers who care for TB patients in Mbeya and Songwe Regions, Tanzania

This cross-sectional study, nested in the TB Sequel study, examined the social and economic impacts of pulmonary tuberculosis in Tanzania’s Mbeya and Songwe regions. Drawing on perspectives from patients, families, survivors, and healthcare providers, it highlighted financial hardship, stigma, and limited access to care before, during, and after treatment. Despite free TB services, delayed care was common due to pre-diagnosis costs and social barriers, underscoring the need for more patient-centred, supportive, and accessible TB care interventions.

Supervisors: Professor D Evans, Dr G Mubyazi and Dr A Moolla

LEKHULENI, Cebile Natasha Nolwazi

Clinical Microbiology and Infectious Diseases

THESIS: Molecular characterisation and population structure determination of Streptococcus Pneumoniae in South Africa using Whole-Genome Analysis

This research used bioinformatics to investigate the impact of pneumococcal conjugate vaccines on invasive pneumococcal disease-causing lineages in South Africa. By analysing national surveillance genomes sequenced from over 4,600 pneumococcal isolates, the study revealed significant declines in vaccine-targeted lineages, while highlighting increases in non-vaccine type and antibiotic-resistant lineages after vaccine introduction. The findings demonstrate the value of genomic surveillance in delineating vaccine-driven population structure changes and may contribute towards improving public health strategies for controlling pneumococcal disease in South Africa.

Supervisors: Dr M du Plessis, Dr K Ndlangisa and Professor A von Gottberg

LORD, Sandy Physiotherapy

THESIS: Recommendations for physiotherapist-delivered lifestyle interventions for patients with comorbid mental and physical health disorders

This doctoral study focused on enhancing physiotherapy practice in mental health by developing evidence-based lifestyle intervention recommendations for patients with mental disorders and comorbidities. Using a mixed-methods approach, this study incorporated a systematic review of literature, expert panel consultations, and focus group discussions with South African physiotherapists. The resulting recommendations aim to guide physiotherapists in delivering holistic, patient-centred care that addresses both mental and physical health needs, contributing significantly to the integration of mental health into physiotherapy practice in South Africa.

Supervisors: Dr V Naidoo and Professor K Mostert

MADUNA, Dumsile Nontokozo Paediatrics

THESIS: Determining synchrony of mother-infant non-verbal and movement behaviours using first-person observation and accelerometer data

This thesis used first-person head-mounted videos and wrist accelerometers to characterise non-verbal and movement synchrony in Soweto mother-infant dyads across 4 and 8 months postnatally. Findings demonstrate developmental shifts from mother-led to infant-led coordination and delayed emergence of behavioural synchrony relative to high-income cohorts. Additionally, the thesis identifies maternal employment as a key predictor of reduced synchrony. This research advances multimodal methods for low- and middle- income countries (LMIC) research and informs culturally sensitive, synchrony-focused early childhood interventions and policy.

Supervisors: Dr LH Nyati and Professor IT Nabney

MARSDEN, Joshua Patrick Virology

THESIS: Antibody genetic diversity within an African population

This research examines the genetic basis of how antibodies bind to pathogens and signal the immune system. It characterizes variation through genetic sequencing of antibody genes in a South African population heavily impacted by HIV infection. The study uncovered novel gene variants, revealing significant undiscovered diversity. It also found gene duplications can enhance antibody production, and other variations may alter antibody function. This knowledge is crucial for developing vaccines and therapeutics tailored to the unique genetic diversity found within African populations.

Supervisors: Dr C Scheepers, Dr D Kitchin and Professor L Morris

MBOWENI, Nonkanyiso Ruth-Anne Physiology

THESIS: The clinical and biochemical effects of atrial fibrillation on heart failure with reduced ejection fraction

This thesis presents a prospective observational study which employed multimodal characterisation of South African patients with heart failure with reduced ejection fraction (HFrEF), with and without atrial fibrillation (AF). Patients with HFrEF-AF showed a distinct clinical, echocardiographic, biomarker, and genetic profile with a more advanced disease phenotype and higher mortality. The study revealed sub-optimal uptake of guideline-directed medical therapy and anticoagulation among HFrEF-AF patients. These hypothesis-generating findings highlight a need for region-specific strategies to improve long-term outcomes in HFrEF-AF patients.

Supervisors: Professor M Maseko and Professor N Tsabedze

MCGIVERN, Kelly Berene Forensic Medicine

THESIS: The behaviour consistency of serial murder offenders in South Africa

This research examined the crime scene behaviours of serial murderers in South Africa to empirically test the underlying principles of crime linkage, namely behaviour consistency and distinctiveness. The study’s use of original police case files, encompassing both solved and unsolved cases, enhanced the ecological validity of its findings. The results offer valuable insights into which behaviours are most effective for linking murder cases, thereby strengthening the application of crime linkage in future investigations and legal proceedings of serial murder offenders.

Supervisor: Professor GN Labuschagne

MKHIZE, Siluleko Advice

Physiology

THESIS: Contribution of novel biomarkers to adverse cardiac remodelling and myocardial dysfunction in a rodent model of pressure overload

Biomarkers are measurable indicators of a biological condition. In hypertensive heart disease, novel biomarkers have been identified, yet their roles in disease development remain unclear. This thesis investigated pentraxin-3, RUNX-1, and microRNA-146a-5p in spontaneously hypertensive rats. Pentraxin-3 may reflect localized inflammation associated with hypertension without being involved in concentric hypertrophy. RUNX-1 may result in hypertension-induced reactivation of the foetal gene program, driving hypertrophic and fibrotic remodelling. Finally, microRNA-146a-5p may act as a counter-regulator of macrophage infiltration into the hypertrophic myocardium.

Supervisors: Professor F Michél, Dr A Manilall and Professor S Gunter

MOSANA, Mmahiine Christina Physiology

THESIS: The potential prophylactic effect of moringa (Moringa Oleifera Lam.) Leaf extracts against fructose-induced metabolic dysfunction in early weaned female rats

This study explored the prophylactic effects of Moringa Oleifera leaf extracts in early-weaned female rats on high-fructose diets. Early weaning alone and with fructose caused metabolic dysfunction, hepatic steatosis, and renal damage. Two-week Moringa supplementation alleviated these effects, improving biomarkers of function and modulating genes involved in lipogenesis and fatty acid oxidation. Findings from this study demonstrate that Moringa is an accessible, cost-effective early-life intervention offering sustained multi-organ protection against metabolic, hepatic, and renal dysfunction even when administered for short-term post-weaning.

Supervisors: Professor T Nyakudya, Professor A Ndhlala and Professor KH Erlwanger

MPHAPHULI, Mashudu Theodore Pharmacy

THESIS: A novel multi-component 3D-printed scaffolds for targeted bone tuberculosis therapy

This study developed a novel 3D-printed multi-component scaffold that incorporates bedaquiline-loaded PLGA nanoparticles for targeted bone tuberculosis treatment. The scaffold provides localized, sustained drug release along with bone regeneration, addressing the issues of poor drug penetration and systemic toxicity associated with traditional therapies. In vitro assays confirmed biocompatibility with over 85% cell viability, while in vivo rabbit femoral defect models showed significant bone regeneration and structural restoration. This innovative platform offers strong potential for clinical translation in bone TB therapy.

Supervisors: Professor YE Choonara, Professor P Kumar and Dr M Sithole

MTHOMBENI, Julian Qedizaba Public Health

THESIS: Quantification and mapping of manganese deposition and associated histopathological correlates in the lungs of deceased mineworkers in South Africa

This study provides the first systematic quantification and anatomical mapping of manganese deposition in the lungs of deceased South African mineworkers, addressing a critical gap in understanding its respiratory effects. Using advanced analytical and histopathological methods, it was confirmed that manganese accumulates in the lungs, with distinct lobe-specific patterns, but no exposurerelated tissue damage or correlation with brain manganese levels was found. The research findings provide important insight into manganese toxicokinetics and evidence to strengthen occupational health knowledge and protection for mineworkers.

Supervisors: Professor G Nelson, Professor B Racette and Dr N Vorajee

MUHAMMAD, Jelani

Physiology

THESIS: Potential of naringin in the prevention of sweetened alcohol-induced cardiometabolic derangements in adolescent Sprague-Dawley rats

There is an increasing consumption of sweetened alcoholic beverages, presenting a double burden of increased sugar and alcohol consumption. This study investigated the potential of naringin to prevent sweetened alcoholinduced cardiometabolic derangements in adolescent rats. The study revealed sexually dimorphic effects of sweetened alcohol consumption and naringin supplementation on cardiometabolic derangements. Females were more prone to sweetened alcohol-induced cardiometabolic derangements. Naringin supplementation ameliorated some of the sweetened alcohol-induced dysfunctions. Strategic use of naringin could decrease the prevalence of cardiometabolic disorders.

Supervisors: Professor KH Erlwanger, Professor L Mokotedi and Professor KG Ibrahim

MUKOSHA, Moses Public Health

THESIS: Postpartum hypertension and vascular biomarkers among HIV-infected women with pre-eclampsia in Zambia

This prospective cohort research examined hypertension and vascular biomarkers in the HIV population previously diagnosed with pre-eclampsia. Findings reveal that HIV/ART increased the odds of persistent hypertension six months following delivery. Additionally, some vascular biomarkers were elevated among the women living with HIV, suggesting higher risk of a first cardiovascular event. Taken together these findings emphasize the importance of ongoing hypertension screening in the months following delivery, with an eye on continued care and treatment for women living with HIV.

Supervisors: Professor AM Hatcher, Professor W Mutale and Professor BH Chi

MULI, George Mutuku Physiotherapy

THESIS: pidemiology, functioning and reintegration into the community of patients with spinal cord injuries in Kenya

This study investigated the epidemiology, functional outcomes, and community reintegration of individuals living with spinal cord injuries in Kenya, in three phases. Findings indicate that young, working-age males were predominantly affected with the leading causes being motor traffic accidents and falls. Functional outcome was higher among incomplete injuries, whereas reintegration was hampered by environmental and societal barriers. The Delphi validation process underscored the importance of addressing these barriers through community support, promoting rehabilitation practices, and strengthening national rehabilitation policies.

Supervisors: Professor V Ntsiea, Dr N Benjamin-Damon and Dr N Tawa

MYEZA, Nonzuzo Praiseworth

Pharmacology

THESIS: An evaluation of the effects of metal complexes on cell death signalling networks in breast cancer cell lines

Organic copper and gold complexes were evaluated against treatmentresistant triple-negative breast cancer. They exhibited potent, selective cytotoxicity at low micromolar concentrations. Cell death occurred through intrinsic apoptotic signalling, mediated by reactive oxygen species accumulation and downregulation of inhibitor-of-apoptosis proteins (cIAP1, XIAP, and survivin), thereby establishing a pro-apoptotic environment. These findings identify copper and gold complexes as effective modulators of apoptosis and promising lead candidates for further preclinical development in the treatment of aggressive, therapy-resistant breast cancer.

Supervisor: Dr L Harmse

NAIDOO, Merusha Human Genetics

THESIS: Epigenetic associations with sex hormone levels and cardiometabolic disease risk factors in pre- and post-menopausal women from West Africa

Menopause is defined by hormonal changes that are associated with increased cardiometabolic risk. The epigenetic mechanisms behind the regulation of sex hormones have not been studied before. This study investigated DNA methylation in genes associated with regulation of sex hormones in pre- and post-menopausal West African women through a streamlined protocol for targeted methylation analysis. While hormonal and cardiometabolic shifts were evident, no epigenetic associations were observed, indicating limited methylation influence on these candidate genes in West African women.

Supervisors: Professor M Ramsay, Professor N Crowther and Dr N Goolam Mahyoodeen

NETHATHE, Gladness Dakalo

Critical Care

THESIS: Aspects of the neuroendocrine stress response in patients with severe sepsis or trauma

This thesis explored adrenal dysfunction in critical illness, focusing on sepsis and traumatic brain injury. Through clinical studies, it examined free cortisol responses and glucocorticoid sensitivity. It also investigated mineralocorticoid insufficiency and introduced the novel concept of critical illness-related mineralocorticoid insufficiency. Finally, adjunctive steroid therapies were evaluated, advancing understanding of endocrine dysfunction and offering insights to guide therapeutic strategies for critically ill patients.

Supervisors: Professor J Lipman, Professor R Anderson, Professor C Feldman and Associate Professor J Cohen

NIETZ, Sarah Lena Surgery

THESIS: Quality indicators of breast cancer surgery in South Africa

This research developed South Africa’s first quality indicators for breast cancer care and benchmarked these within a cohort of 3,545 women. Results showed lower adherence to these indicators compared with international standards, particularly in radiation therapy, sentinel node biopsy, and breast-conserving surgery. Survival was strongly associated with several of these indicators. A tailored set of requirements for breast cancer centres was subsequently developed, providing a clear framework and step-by-step plan to improve breast cancer care in South Africa.

Supervisors: Professor P Ruff and Professor S Norris

NJOROGE, Nancy

Orthodontics

THESIS: An assessment of oral healthcare delivery to children with special needs at dental schools in South Africa

This mixed-methods study assessed oral healthcare delivery to children with special healthcare needs (CSHCN) at academic dental hospitals (ADH) in South Africa (SA). Findings indicated that CSHCN in SA experienced poor oral health, high unmet dental care needs and limited access to dental treatment. Challenges affecting dental services at ADH included service provision challenges, resource constraints, low patient affordability and organisational factors. The study proposed an integrated oral healthcare framework to enhance dental services for CSHCN in SA.

Supervisors: Professor P Hlongwa, Dr A Magan and Dr M Molete

NKERA-GUTABARA NDIMURUKUNDO, Claudine Kanyana

Human Genetics

THESIS: Snapshot of the gut microbial diversity of an urban South African population in relation to diet, lifestyle, health and socioeconomic status

This study provided the first detailed analysis of the gut microbiome in 220 urban professional South Africans, linking microbial diversity and function to sociodemographic and modifiable factors such as diet and lifestyle, and health. By generating a high-resolution, population specific baseline, this work addressed a critical gap in African microbiome research. It challenges eurocentric paradigms, links urbanization, diet and environment to microbial shifts, and underscores the value of integrated multi-omics to inform locally tailored public health interventions in rapidly urbanizing settings.

Supervisors: Professor S Hazelhurst, Dr R Kerr and Dr J Naidoo

NOETH, Kayla Philippa Virology

THESIS: Bionomics of Anopheles mosquitoes in Ehlanzeni District Municipality, Mpumalanga

This thesis examined the bionomics of Anopheles mosquitoes in Mpumalanga, focusing on historical abundance trends, pollution effects on An. gambiae breeding habitats, and the hormetic impacts of agricultural pollutants. Sub-lethal larvicide exposure influenced mosquito longevity and gut microbiota. Results showed systematic trends in vector bionomics and pollutant-induced hormesis with implications for insecticide resistance. The findings highlight key barriers to malaria elimination and conclude that refined surveillance and control strategies are essential to achieving elimination goals.

Supervisors: Dr SV Oliver and Dr G Munhenga

NYAMUPANGEDENGU, Kudakwashe Lazarus Human Genetics

THESIS: Genetic impact on first line treatment to hypertension in black South Africans

Hypertension is the leading cause of cardiovascular disease and Africa carries the heaviest burden. Effective management is therefore crucial for improving health on the continent. This research investigated differences in response to hypertension medication between populations with different genetic ancestry. The study showed that despite deviating from national guidelines, hypertension management at primary health care level produces positive outcomes. The study also highlighted genetic diversity present in African populations and emphasizes further exploration with the ambition of population-specific tailored treatments.

Supervisors: Professor M Ramsay, Professor C Masimirembwa, Dr A May and Dr D Twesigomwe

OBERMEYER, Izel Occupational Therapy

THESIS: Developing and evaluating a multimedia technology approach to surveying individuals with cognitive disabilities to promote person-centered practice

This study developed and evaluated a multimedia survey platform, Westchester Institute for Human Development (WIHD) EasySurvey (WES), to support selfreporting by individuals with cognitive disabilities. Co-designed with experts and end-users, WES integrates images, audio, and simplified layouts to enhance accessibility and independence. Findings showed that participants preferred WES over traditional tools, highlighting its potential to promote person-centered care and digital inclusion. The research contributes a practical, scalable solution for empowering voices often excluded from health and service feedback systems.

Supervisors: Dr D Franzsen, Dr J van der Linde and Adjunct Professor P BarnardAshton

OLANIPEKUN, Toluwase Eniola Physiology

THESIS: Tannic Acid as a dietary supplement for protection against metabolic disorders caused by sweetened alcohol intake in rats

This thesis examined tannic acid as a potential intervention for metabolic disturbances from sweetened alcohol consumption in adolescent rats. A voluntary gelatine-based model mimicking adolescent alcohol shot intake was used to assess metabolic, hepatic, and renal outcomes. Results revealed sexspecific vulnerabilities, with females more prone to visceral obesity, steatosis, oxidative stress, and glomerular changes. Tannic acid offered limited protection, improving hepatic oxidative stress in males only. The findings underscore the importance of considering sex differences in alcohol-related metabolic research.

Supervisors: Professor KH Erlwanger and Associate Professor OI Olateju

OSLER, Tabitha Simone Human Genetics

THESIS: Genetic counselling, testing and clinical management of hereditary breast cancer in South Africa

This study determined the prevalence of pathogenic variants and variants of uncertain significance in susceptibility genes among South Africans with breast cancer, and evaluated the genetic counselling, testing, and subsequent clinical management pathways in affected women and their families. It also assessed the use of African genomic data to reclassify variants of uncertain significance in individuals of African ancestry. The study’s findings have implications for future testing strategies and clinical management of hereditary breast cancer in South Africa.

Supervisors: Professor C Mathew, Professor M Urban, Dr J-T Brandenburg and Dr WC Chen

REDMAN-VIRA, Kirsten Physiology

THESIS: Interaction between immune activation, sleep disturbances and circadian timing on cardio-metabolic risk in HIV positive patients

South Africa has the highest global burden of HIV. While antiretroviral therapy has improved life expectancy, people with HIV remain at increased risk for cardiovascular disease. Poor sleep contributes to weight gain, inflammation, and cardiometabolic risk. This research found that South African people with HIV had poor sleep quality and circadian misalignment (chronic jetlag) while poor sleep quality was associated with increased inflammation and higher cardiometabolic risk. Interventions to improve sleep may help alleviate cardiometabolic risk in people with HIV.

Supervisors: Associate Professor K Scheuermaier and Professor N Crowther

REIS, Naeema Ahmad Ramadan Physiotherapy

THESIS: Evaluation of the implementation outcomes of the framework and strategy for disability and rehabilitation for South Africa: An explanatory mixed-methods study

This study evaluated the implementation outcomes of South Africa’s Framework and Strategy for Disability and Rehabilitation (FSDR) in Gauteng through an explanatory mixed-methods design. Drawing on document reviews, interviews, and focus groups, it explored provincial processes, stakeholder perceptions, and influencing factors. Findings revealed inadequate funding, workforce shortages, and weak intersectoral collaboration, but also highlighted advocacy efforts and community-based rehabilitation as enablers. Evidence-based strategies were proposed to strengthen policy implementation, enhance rehabilitation access, and advance disability rights in South Africa.

Supervisors: Dr S Pilusa and Dr N Benjamin-Damons

SADIQ, Mohammad Eitzaz Internal Medicine

THESIS: The role of atherosclerosis in HIV-related stroke in South Africa

This study on stroke in people living with HIV revealed that atherosclerosis is not a prominent mechanism in a low-and middle-income country. This was achieved by studying non-invasive biomarkers of subclinical atherosclerosis (carotid intima-media thickness and aortic pulse-wave velocity) in patients with strokes of different aetiologies. Covert opportunistic infections, including varicella zoster virus, and cardioembolism remain prominent causes. The Immune Reconstitution Inflammatory Syndrome was novelly shown to result in stroke soon after commencement of antiretroviral therapy, despite excluding opportunistic infections.

Supervisors: Professor G Modi and Professor AJ Woodiwiss

SALLIE, Farhanah Nabilah Physiology

THESIS: Investigating the molecular and neurobehavioral effects of monoamine antidepressants and ketamine in a rodent model of ACTH-induced HPA axis dysfunction

This study investigated how prolonged ACTH exposure disrupts the stress-response system and alters brain signalling linked to mood and behaviour. It further demonstrates how classic monoamine-based antidepressants and ketamine influence brain function and behaviour in the ACTH model. These findings help explain how chronic stress contributes to depression and how current treatments work to reverse its effects.

Supervisors: Professor S Baijnath and Professor A Millen

SELEMANI, Apatsa Public Health

THESIS: Journal indexing and scientific impact of Africa’s public health research: Current status, barriers, facilitators, and opportunities

This thesis examined the barriers and enablers of Africa’s public health research indexing and impact through the post-colonial lens. Multiple methods including a scoping review, scientometric and analytical cross-sectional analyses, in-depth interviews and discrete choice experiment were adopted. It revealed structural inequalities in knowledge production and dissemination emanating from neocolonialism, leading to limited influence of African literature in local and global public health discourse. Development of inclusive research evaluation indicators and establishment of context-specific indexing platforms are recommended.

Supervisors: Associate Professor J Igumbor, Professor O Uthman, Professor Y-F Chen and Dr K Wella

SHAMU, Patience Wits Reproductive Health and HIV Institute

THESIS: Perceptions of long-acting HIV pre-exposure prophylaxis and preferences for service delivery among young women in tertiary institutions in South Africa

This study examined the HIV pre-exposure prophylaxis (PrEP) service delivery preferences of young women in two tertiary institutions in South Africa and identified which attributes of services were valued most. Students preferred longacting injectable PrEP, which was compatible with returning for contraceptive services. They wanted PrEP delivered through campus clinics with short waiting times and sensitive healthcare providers for support in dealing with side effects. Students need to be able to access services during holidays from clinics where they live.

Supervisors: Professor S Mullick and Professor N Christofides

SHEHU, Asma’u Muhammad Anatomical Sciences

THESIS: Gliogenesis in the male Japanese quail (Curtonix japonica) brain

The study explored gliogenesis across juvenile, subadult and adult developmental stages in the male Japanese quail brain. Using a combination of histology, immunohistochemistry, immunofluorescence and electron microscopy, the location and distribution of neural progenitor stem cells, astrocytes, oligodendrocytes, microglia and neurons showing dynamic agerelated cellular progressive changes were established. These region-specific patterns of proliferation through maturation contribute to a better understanding of mechanisms of brain development and neural plasticity, a significant contribution to the fields of developmental and comparative neuroscience.

Supervisors: Professor AO Ihunwo and Associate Professor P Mazengenya

SIKHOSANA, Nombeko Pharmacy

THESIS: Nano-embedded bioplatform for ocular delivery of genetic material

This project developed a targeted gene delivery platform for ocular application, providing an alternative to conventional viral vectors. The work demonstrated efficient delivery of large genetic constructs, sustained gene release, and robust gene expression in vitro using nanoparticles. Findings highlight the potential of engineered, non-viral systems to overcome limitations of traditional viral approaches, offering a safe, scalable, and effective strategy for ocular gene therapy. The study advances the design of targeted platforms capable of precise and durable genetic material delivery.

Supervisors: Professor YE Choonara, Professor L du Toit and Dr P Walvekar and Dr N Ally

SIMUYEMBA, Moses Chikoti

Public Health

THESIS: An Economic Evaluation of Zambia’s Human papilloma virus (HPV) vaccination programme

This thesis assessed the cost and cost-effectiveness of Zambia’s HPV vaccination programme delivered through school, health-facility and community-outreach models. Using a Markov model that incorporated HIV considerations, the study compared delivery efficiencies and long-term health outcomes. Findings provide critical evidence to guide national policy on sustainable HPV vaccination financing and optimised delivery strategies in low- and middle- income settings.

Supervisors: Associate Professor L Chola and Reader R Wagner

SMYTH, Natalie Anne

Human Genetics

THESIS: Understanding the genetic basis of extreme levels of high and low LDLcholesterol in African populations

This study investigated genetic contributions to LDL-cholesterol levels in SubSaharan Africans using data from the AWI-Gen cohort. Targeted sequencing of key genes involved in LDL-cholesterol metabolism identified both known and novel variants, while polygenic score analyses highlighted the limited predictive accuracy of existing models in different African populations. Together, these findings underscore the genetic complexity of dyslipidaemia in Africa and emphasise the need for ancestry-inclusive research to improve cardiovascular risk prediction on the continent.

Supervisors: Professor M Ramsay, Professor F Raal and Dr D Sengupta

STEIN, Christopher Owen Alexander Bioethics and Health Law

THESIS: Acting without asking: an ethico-legal analysis of the problem of emergency care research with incapacitated adults

This thesis is a critical analysis of the ethical principle of respect for autonomy and the process of informed consent and the interactions of ethical decisionmaking and risk analysis in the emergency care research context. This is followed by an ethico-legal analysis of research on emergency care research with incapacitated adults. A novel categorisation of capacity with mappings to time-sensitive levels of informed consent modalities is presented with a set of conditions and framework for a waiver of informed consent.

Supervisor: Professor A Dhai

THABETHE, Nomsa Dududzile Lina Public Health

THESIS: Human health risk of exposure to fine particles (PM2.5) from the gold mine tailings in the community of eMbalenhle, South Africa

This study assessed the human health risks of exposure to PM2.5 among different population subgroups in eMbalenhle. Ambient PM2.5 monitoring at TSFs and community, dispersion modelling, source apportionment and Probabilistic Human Health Risk Assessment were conducted. The study indicated that some population subgroups experienced health risks despite PM2.5 concentrations being below the National Ambient Air Quality Standard (NAAQS). Although no direct link between health effects and TSFs was established, the study showed that compliance with NAAQS does not always guarantee public health protection.

Supervisors: Professor D Brouwer, Professor MD Masekameni and Dr TN Makonese

TLHABELA, Daphney Nursing

THESIS: Factors influencing implementation of termination of pregnancy policy in Gauteng Department of Health - A multi-method study

This multi-method study identified the factors influencing the implementation of the termination of pregnancy policy in the Gauteng Department of Health. Several sets of data were analysed, guided by the policy framework of Walt and Gilson. Data showed that the provision of abortion services by TOP providers has a positive impact on the lives of the women seeking abortion care, but access is hindered due to limited resources and stigma which still remains and impacts negatively on the successful implementation of the TOP policy.

Supervisors: Dr S Armstrong and Professor S Schmollgruber

UJADDUGHE, Oriasotie Moses Anatomical

Sciences

THESIS: Evaluation of standards for sex estimation in Black South Africans using measurements derived from a three-dimensional Computed Tomography (3DCT) scan

This study addressed the need for accurate human identification within the context of violent crime in South Africa. Using computed tomography scan records, measurements were obtained from selected bones of contemporary black South Africans. The study evaluated the performance of existing sex estimation models and developed new population-specific models to improve the accuracy of forensic identification and support medico-legal investigations, contributing significantly to forensic anthropology and the administration of justice.

Supervisors: Professor OI Olateju, Professor MA Bidmos and Professor MA Spocter

UWASE, Aline Public Health

THESIS: Factors associated with maternal dietary practices among pregnant women attending antenatal care services in the Southern province of Rwanda

This study investigated maternal dietary practices during pregnancy in Rwanda’s Southern Province, where undernutrition and anaemia remain prevalent. Using a scoping review and a convergent mixed-methods study, it explored the factors associated with dietary practices, and the roles of male partners and healthcare providers. Findings revealed suboptimal dietary practices shaped by education, food insecurity, cultural norms, male partners’ involvement and systemic barriers. Strengthening nutrition education, male involvement, and healthcare infrastructure is essential to improve maternal dietary practices and pregnancy outcomes in Rwanda.

Supervisors: Professor J Levin, Associate Professor E Nsereko and Dr N Pillay

ZHARIMA

, Campion Public Health

THESIS: The strategies to enable, and challenges faced with implementation of quality electronic health records in South Africa

his thesis examines barriers, facilitators, and strategies for implementing electronic health records (EHR) in South Africa, essential for achieving National Health Insurance goals. Using qualitative interviews with stakeholders, a case study, and a rapid review of global evidence, it identifies systemic, infrastructural, technical and leadership challenges. Findings emphasize the importance of integrated approaches that combine top-down leadership with effective bottom-up user engagement, while drawing on provincial successes to guide the development of a robust, interoperable national EHR system.

Supervisors: Professor J Goudge and Professor F Griffiths

Olives & Plates - Braamfontein Campus West

FACULTY OF HUMANITIES

DEAN: PROFESSOR M MUSEMWA BA Hons (Zimbabwe) MA (Cape Town) PhD (Minnesota, USA) MASSAf

BELL, Amé

Doctor of Philosophy

History of Art

THESIS: Independent Visual Artists in Johannesburg and their expansion to the digital space, 2020-2024

This study explores how independent artists in Johannesburg navigated the changing art world between 2020 and 2024, using digital platforms to build visibility, capital, and autonomy outside traditional gallery systems. Drawing on the candidate’s theory of capital and field, the research highlights how artists negotiate power, recognition, and sustainability in both physical and digital spaces, particularly in response to the COVID-19 pandemic. It offers a nuanced understanding of the ‘independent artist’ in South Africa’s evolving cultural landscape.

Supervisor: Professor C Doherty

BODIAT, Aneesa

English

THESIS: Food writing, life writing and the construction of a South African Indian Muslim woman’s identity: an Autoethnographic and Critical Study

This autoethnographic study examines food writing as a nexus for understanding the heterogeneity of Indian Muslim women’s identities in South Africa. Via a close reading of examples from diverse genres - including recipes, oral narratives and fiction - the study reveals how cultural norms regarding women’s roles and the value of their domestic labour are continually negotiated in food writing. The research connects food-making, feminist theory, and Islamic law, arguing that local culture influences hegemonic understandings of Muslim women’s domestic roles.

Supervisor: Dr S Kostelac

CAIN, Wendy Lee

Psychology

THESIS: An exploratory study of the intrapsychic and interpersonal uses of mobile phones in a cohort of emerging adults

This layered and complex research endeavour discusses individuals’ accounts of and relationships with their mobile phones. Demonstrating how these machines operate in the realms of object relations and transitional phenomena, and become entangled in separation and individuation dynamics, the candidate presents an elegant and sophisticated application of psychoanalytic theorising to mobile phone use - a subject both ubiquitous and mysterious.

Supervisor: Associate Professor K Bain

DUMA, Angeline Education

THESIS: Integrative knowledge building in blended instruction: an exploratory study of Organic Chemistry lessons

In this study, the candidate explores how integrative knowledge building occurs in Grade 12 organic chemistry lessons delivered through contact and asynchronous online sessions. Using Legitimation Code Theory (autonomy dimension), a qualitative case study involving eight Technical Sciences teachers revealed that online lessons offered greater opportunities for integration. The research led to the development of the Blended Learning Pedagogical Integration Model (BLPIM), a framework for enhancing integrative teaching practices in science education.

Supervisors: Dr E Mushayikwa and Dr M Stephen

GOLDSCHMIDT, Lynne Daniele

THESIS: The silencing of women’s trauma: Descendant’s reflections on disremembered women anti-apartheid activists

Psychology

In this groundbreaking PhD, the candidate amplifies the silenced voices of ordinary Black women anti-apartheid activists, centring their legacies through the memories of their descendants. Her work brings tenderness, empathy, and care to these women’s stories, challenging dominant archives and highlighting intergenerational trauma. This thesis fills a critical gap in decolonial and trauma studies, offering a powerful counter-narrative that affirms Black women’s humanity, resistance, and the enduring spirit of love that shaped their activism.

Supervisor: Professor C Langa

GUILENGUE, Fredson Guirramela Lopes Developmental Studies

THESIS: Cyclone Idai and The Climate Metabolic Rift: the political ecology of the Mozambican state and progressive movements’ responses

The candidate examined how the Mozambican state and progressive social movement organisations responded to the effects of Cyclone Idai that hit the country in 2019. His thesis makes an important contribution to the study of societal responses to extreme shocks caused by climate change in the context of growing demands for a just transition. This study also enriches Marx’s theory of the metabolic rift by locating it within the context of the crisis of the Anthropocene.

Supervisor: Professor V Satgar

GULE

, Bheki Sihawukelwe

Education

THESIS: Infusing learning management systems in higher education: a study of collective actions of University management, and students at the university of Eswatini

This study examined the pivotal role of university leadership in facilitating the effective infusion of learning management systems within a higher education institution. Employing a mixed-methodological approach, it identified three essential management practices-user identification, mobilization, and barrier removal-as critical to successful LMS adoption and integration. The findings provide important insights for universities aiming to maximize the impact of digital learning platforms. More broadly, the study contributes to the scholarly discourse on educational technology and university leadership.

Supervisor: Associate Professor R Dlamini

GWESHE, Lovejoy Comfort Education

THESIS: High school learners’ mathematical identities: the case of an after-school mathematics club

The thesis aimed to understand secondary school learners’ engagement in mathematics through the lens of identity, and the extent to which learners’ mathematical identities can be supported by an after-school mathematics club. The thesis shows that many learners’ mathematical identities are fragile and that their identities, and productive dispositions towards mathematics, were supported by the club, as well as by their significant others: parents, teachers and peers.

Supervisor: Professor K Brodie

HLATSHWAYO, Philip Education

THESIS: Early career teachers’ professional agency within school structures and teacher unions

The candidate’s study investigates how early career teachers enact professional agency within their school contexts. He used Legitimation Code Theory to examine how former student activists navigate tensions between their social justice ideals and entrenched institutional norms. The study reveals how these tensions shape their classroom practices and union affiliations.

Supervisor: Professor L Rusznyak

IRVINE, John Edward Philosophy

THESIS: Disquiet: a Reading of Wittgenstein’s Tractatus Logico-Philosophicus

Disquiet, is an extended engagement with Wittgenstein’s Tractatus LogicoPhilosophicus, which seeks to show what it means to engage in philosophical activity rather than to advance and dispute theses. Weaving together an array of literary, psychological, and theological resources in analytic meditations, thematic essays, and experiential records, the candidate demonstrates his fidelity to the ancient Greek conception of philosophy as a spiritual exercise, designed to attain clarity of vision regarding meaning, truth, and the structure of the world.

Supervisor: Professor D Futter

JASMINE, Umme Habiba Psychology

THESIS: Intergenerational Continuity of Protective Parenting Practices of Bangladeshi Mothers

The candidate’s PhD study in Psychology is by thesis and publications. Her research examines the intergenerational continuity of protective parenting practices among urban middle-class Bangladeshi mothers with 15 mothers and maternal grandmothers from the Mirpur area of Dhaka City sampled by criterionbased snowballing. The scholarly contribution of the study is the process model of intergenerational continuity of protective parenting practices, analysing intergenerational differences, defining and identifying key protective parenting practices, and examining the influence of cultural and social contexts.

Supervisors: Dr S Mayisela and Dr M Nduna

KURWA, Govero Memory Education

THESIS: Investigating the relationship between the quality of Enacted Pedagogical Content Knowledge (ePCK) of Physical Sciences teachers and Grade 12 learner performance in the topic of Acids and Bases

This study examined the link between teachers’ enacted Pedagogical Content Knowledge (ePCK) and Grade 12 learners’ performance in acids and bases. Using a mixed-methods design, content knowledge tests, learner assessments, lesson observations, and transcript analyses were conducted. Findings revealed weak teacher content knowledge and persistent learner misconceptions, despite teachers demonstrating ePCK mainly through Curriculum Saliency, Learner Prior Knowledge, and Representations. A weak positive correlation was found between teachers’ ePCK and learner performance, underscoring the need for targeted professional development.

Supervisor: Dr M Mosabala

LEE AH SOON, Melanie Education

THESIS: Translanguaging as a pedagogical strategy in Mauritius Higher Education System

This thesis examines the role of translanguaging as a transformative pedagogical approach in Mauritius higher education. It explores how multilingual practices can enhance teaching and learning, foster epistemic access, and challenge monolingual ideologies, thereby contributing to more inclusive and contextually relevant higher education.

Supervisor: Professor L Makalela

MAHLALELA, Jimson Ntando

Education

THESIS: Exploring ethical leadership practices of school principals in five rural high schools in the Lubombo region of Eswatini: a multiple case study

This study examines how rural school principals in Eswatini practice ethical leadership under conditions of scarcity and cultural expectations. Using Ubuntu and Stakeholder Theory as lenses and interviews with school leaders and community representatives, it finds that ethical leadership functions as a moral ecosystem grounded in personal integrity, accountable relationships, and institutional support. When these elements align, trust and shared responsibility thrive; when they don’t, ethical practice declines. The study highlights the need for sustained ethics training, participatory accountability, and supportive supervision.

Supervisor: Dr P Mthembu

MANYIKE, Thabang

Political Studies

THESIS: Black Islamic Praxes: Anti-colonial Theories & Inventions of Existence

The thesis is a unique research focusing on the relationship between Blackness and Islam in South Africa. It investigates this relationship as a way of introducing a new intellectuality of politics and culture in the African Humanities and Social Sciences. The study shows that this relationship opens a new imaginary of knowledge production, culture and politics as a way of expanding our horizons of freedom. This thesis invents new concepts, theories and methods to launch an anti-colonial praxis and subjectivity in our contemporary conjuncture.

Supervisor: Dr A Omar

MASHANGOANE, Phosa Jan

Interdisciplinary Digital Knowledge Economy Studies

THESIS: Digital transformation for Social Development: a study of Primary Health E-Services

This thesis examined how digital health technologies influence service delivery in primary healthcare settings across rural and urban contexts, with a particular focus on their role in promoting social development. A critical finding by the candidate was that digital health technologies in the healthcare facilities in South Africa need to be interconnected with the Internet of Medical Things to transmit healthcare big data into a central critical database. The study by the candidate culminated in the development of the proposed Digital Health Theory that seeks to explain the persistent digital divide within the health system, particularly the delays that occur across different levels of leadership and governance.

Supervisor: Associate Professor L Abrahams

MASIKANE, Fikile Goodness Sociology

THESIS: A Faith-based Response to the Precarious Work-Life of Black People through Six Days of Labour, One Day of Rest in Ibandla lamaNazaretha

This rich ethnographic study explores the notion of work and rest in Isaiah Shembe’s Ibandla lamaNazaretha, in relation to the precarity of Black people in post-1994 South Africa. The thesis offers an incisive critique of the epistemic marginalisation of Black forms of knowledge-making, highlighting the centrality of relationality, temporality, language and sound.

Supervisors: Professor B Kenny and Professor L Nunez Carrasco

MBEVE, Oncemore Migration and Displacement

THESIS: Mediators of sexual decision-making among young South African and Zimbabwean migrant heterosexual men: a study conducted in Johannesburg, South Africa

The candidate’s PhD explores sexual decision-making mediators among internal and cross-border migrant men in Johannesburg. It highlights both structural and agent-level factors, offering timely, context-specific insights. The study informs current and future interdisciplinary research on addressing sexual and reproductive health (SRH) challenges and opportunities affecting migrant men in urban settings.

Supervisors: Professor J Vearey, Associate Professor T Nkomo and Dr R Walker

MOFOKENG, Lehlohonolo Israel Education

THESIS: Beginner teachers’ experiences and perceptions of mentorship in two Free State province public secondary schools

The candidate’s thesis offers a nuanced analysis of beginner teacher mentorship in South Africa. The study develops a context-specific mentorship model, thus, contributing innovative, actionable strategies that can strengthen teacher support systems and influence educational policy, leadership, and training in South Africa and beyond.

Supervisors: Associate Professor T Nkambule and Dr E Kadenge

MOFOKENG, Lesley Lehlohonolo Journalism and Media Studies

THESIS: Sol T. Plaatje’s Ink: Exploring the nascent Setswana public sphere through the form of Plaatje’s newspapers (1901-1915)

This thesis examines Solomon Plaatje’s role in South African journalism through an analysis of the newspapers he edited from 1901 to 1915 - Koranta ea Becoana, Tsala ea Becoana, and Tsala ea Batho. The thesis shows how the newspapers constituted a Setswana and African public during a period of intensifying colonial oppression and racial segregation, and makes an original contribution to the understanding of the early black press, its commercial operations and its construction of black identity.

Supervisor: Associate Professor L Cowling

MOHULATSI, Mapule Patricia African Literature

THESIS: Negotiations of Social Identity and Creolisation through Recipes in South Africa and Jamaica

This thesis examines recipes - including those featured in creative writing - to demonstrate how collectives and individuals create narratives of social identity in South Africa, with some comparison to Jamaica. The thesis draws out the long histories and social meanings of food in South Africa, paying close attention to the country’s history of recipe writing alongside contemporary uses of the recipe in literary and genre fiction. The thesis pays attention to fiction, poetry, film and recipe books, exploring the ways in which recipes narrate social histories and identities.

Supervisors: Professor C Hofmeyr and Dr C Lavery

MONTJANE, Vincent Mahlaseletse Education

THESIS: Mapping multimodal affordances of the interactive whiteboards into teaching of Grade 11 Mathematics content: a case study of five Gauteng township secondary schools

The study reports findings from five schools where Interactive Whiteboards were implemented to enhance teaching and learning. Adopting a pragmatist lens, it examines how teachers’ preparedness and attitudes shape the pedagogical integration of IWBs in Grade 11 Mathematics. The findings indicate that teacher preparedness is multifaceted, influenced by both human and non-human factors. Despite varying levels of experience, teachers faced similar challenges in integrating IWBs into Mathematics instruction. The study further highlights that limited technological preparedness remains a persistent challenge in Gauteng schools.

Supervisor: Associate Professor R Dlamini

MTAMBO, Bongiwe Florence African Languages and Linguistics

THESIS: How can the Primary School Reading Improvement Program (PSRIP) improve Intermediate Phase IsiZulu reading skills in Johannesburg West District?

The study investigated the reading strategies employed by the PSRIP that are transferable to the development of isiZulu literacy. The implementation of the English-based PSRIP is fraught with challenges ranging from overcrowded classrooms and inadequate or delayed delivery of learner and teacher resources. Addressing such infrastructural challenges is imperative before the adoption and adaptation of the PSRIP for developing literacy in other languages. Thus, developing isiZulu literacy, using PSRIP models remains an untouched terrain in the South African schools.

Supervisor: Dr L Tshuma

MTHEMBU, Sanele Mathews African Languages and Linguistics

THESIS: Mapping Apartheid and Post-apartheid Literary Geographies: a Geocritical Reading of Spatial Narratives in Selected IsiZulu Novels

This study critically repositions African language literature within spatial literary theory by applying geocriticism to isiZulu novels. It challenges the marginalisation of indigenous texts and explores how space and place are represented in apartheid and post-apartheid narratives. Through thematic and decolonial analysis, it reveals how isiZulu literature engages sociopolitical issues via African cosmologies. The research contributes to expanding literary theory beyond structuralist paradigms by affirming the richness and relevance of African language texts in spatial discourse.

Supervisor: Dr S Khetoa

MUCHINDU, Mazuba Webb

THESIS: Florida Street Revelries: On The Nightlife of Lusaka

Sociology

The candidate relies on ethnographic research to explore the everyday socialities and economies of nightlife on Florida Street in Emmasdale, located on the peripheries of Lusaka. The candidate deploys the concept of assemblage to examine the layering of socioeconomic practices, institutional and policy frameworks, and locational circumstances in the configuration and reproduction of urban nightlife. In contributing to an economic sociology of urban nightlife on the African continent, the study fills a major literature gap in African urban studies.

Supervisor: Dr O Katsaura

NGORU, Damaris Ngoki

Music

THESIS: Singing politics?: A historical and contemporary examination of the role of popular gospel music and pentecostalism in Kenya’s Presidential elections

This ethnographic study investigates the role of popular gospel music in Kenyan national election campaigns, with a particular focus on the close relationship between music and politics in the Pentecostal Christian Church denomination.The candidate’s work asserts that gospel music serves three functions in a campaign, namely endorsement, a socio-political reflection of the society; and facilitation of peace, healing and reconciliation. The dissertation’s research findingscontribute towards the under-represented area of religious music and political study in Africa

Supervisor: Dr M Jorritsma

NKOSI, Kagiso Kenny Psychology

THESIS: Money in Black: a Socio-Psychological Study of Economic Practices among Black Professionals in South Africa

The thesis addresses a significant gap in the scientific literature on the psychology of money by exploring the topic within an underexplored context - South Africa. Through an integration of multiple disciplines, including psychology, sociology and philosophy, the study reflects the complexity of the concept of money. It highlights the unique aspects of money cultures among Black professionals, shedding light on the nuanced psychological relationship with money and interpreting it through a historical perspective rooted in the legacy of racialization.

Supervisor: Associate Professor P Kiguwa

NTHIBELI, Moleli Zakaria Education

THESIS: Inclusion in higher education in South Africa: a study of the experiences of students with ASD and ADHD in South African universities and an analysis of the capabilities of university Disability Units to cater for their needs

This study explores how South African university Disability Units support students with Autism Spectrum Disorder and Attention-Deficit Hyperactivity Disorder. Using qualitative methods, it examines staff strategies, student experiences, and inclusion efforts. Findings reveal limited awareness of neurodiversity, overreliance on assessment concessions, neglect of psychological support and an absence of neurodivergent-friendly infrastructure. The study highlights the need for holistic, intersectional approaches and contributes a much-needed Global South perspective to neurodiversity in higher education.

Supervisors: Associate Professor D Griffiths and Dr T Bekker

NTSEPO, Nomonde Terry English

THESIS: “An odd form of love”: Women Writing Friendship in African Short Fiction

The candidate’s thesis focuses on representations of friendship in African women’s short fiction, showing how these works portray friendship across three broad categories of social engagement: feminist friendship, queer friendship, and friendship with the non-human world. The thesis foregrounds friendship as a form of resistance, solidarity, and intimacy in the face of systemic injustices.

Supervisors: Dr S Kostelac and Professor S Roy

NYEMBE, Stanley Khumbulani Education

THESIS: Use of tablets to promote effective teaching and learning: a case study of a high school in Gauteng province, South Africa

This study used a mixed methods approach to assess the educational value of tablets in teaching and learning at South African high schools in Gauteng. Data were collected through classroom observations, questionnaires, and phenomenographic interviews with teachers and learners, as well as interviews with Department of Education officials. Findings revealed mixed perceptions about tablet use, with both benefits and challenges. The study concludes that effective tablet integration requires developing appropriate resources for teachers and learners, and ongoing professional development for teachers.

Supervisors: Associate Professor E Brenner and Associate Professor K Padayachee

OBIJIAKU, Chidi Christian Music

THESIS: Your Work or our Music? A Contextual Analysis of Nigerian Contemporary Music in the Twenty-first Century Nigerian Urban Sundscape

The candidate’s groundbreaking dissertation redefines African contemporary music through an urban lens, challenging colonial frameworks and rigid genre boundaries. By combining ethnography, historical analysis, and practice-led research, he illuminates dynamic forms of cultural resistance and sonic hybridity in Nigeria’s urban soundscape. His work presents a compelling rethinking of genre, identity, and authorship, contributing significantly to Afrodiasporic musicology and paving the way for a new generation of inclusive and contextually grounded scholarship.

Supervisor: Dr A Khumalo

SHEA, Griffin Publishing Studies

THESIS: Operational dynamics of book sales in Johannesburg’s informal economy

The candidate’s doctoral research focused on the informal book market in Johannesburg’s inner city. Based on his longitudinal study of booksellers over nine years’ both before and the Covid-19 pandemic’ and drawing on his own unique position running the Bridge Books enterprise, the candidate’s thesis points to the ways in which the book market is misunderstood by mainstream publishers. More broadly, it contributes to a better understanding of literary circulation in South Africa and the material conditions that shape it.

Supervisors: Dr M Cassells and Professor C Thurman

SINKALA, Namakau Kakanda

Sociol Development

THESIS: Exploring the Implementation of the Pregnancy Re-entry Policy amongst stakeholders at primary school level in Chongwe district, Zambia

The study aimed to create a framework that would encourage adolescent mothers to return to school while simultaneously lowering the prevalence of adolescent pregnancies among Zambian schoolgirls. The research led to the development of a conceptual model that describes how four key elements of policy implementation (improving collaboration, awareness-raising, monitoring, and evaluation) link through the governance structure of the government, church, and traditional leaders.

Supervisors: Associate Professor B Nkala-Dlamini and Dr S Bala

SWARTBOOI, Buyiswa

Social Work

THESIS: Perceptions and experiences of Social Workers and members of the multidisciplinary team in rendering palliative care services to patients with Lifelimiting illness in Public Hospitals in two Health Districts in the Eastern Cape, South Africa

This study explored the perceptions and experiences of social workers and members of the multidisciplinary team in rendering palliative care services to patients with life-limiting illnesses. The study’s population included social workers, doctors, nurses, and palliative care experts. Findings revealed that these professionals face significant challenges, emphasising the need for improved communication, stronger interdisciplinary collaboration and emotional support mechanisms for professionals to manage stress. Additionally, it highlighted the importance of specialised training in palliative care to enhance service quality.

Supervisors: Associate Professor E Pretorius and Dr N Moroe

TURIANSKYI, Yaroslav Journalism

and Media Studies

THESIS: Digital diplomacy and foreign policy in Kenya, Australia, and the United States

This thesis examines how countries of differing status in international relations use the affordances of social media to advance their foreign policy goals. It develops a state-centric typology of digital diplomacy and analyses the Twitter (now X) activity of Kenya, Australia and the United States. The study finds that while a country’s status in the international system broadly corresponds to its digital diplomacy activities, Kenya (a developing country) nonetheless punches above its weight through effective use of social media.

Supervisor: Dr J Wekesa

VALLY ESSA, Fatima Education

THESIS: Cross-pollinating multimodal stories: a pathway to engage with learners’ pluralistic cultural, linguistic and social resources

The candidate’s qualitative study explored how multimodal storytelling can expand what counts as achievement in English classrooms by enabling learners to draw on their cultural, linguistic and social resources. Through innovative classroom interventions, it found that cross-pollination across modes of storytelling fostered agency, social consciousness, and meaningful connections between learners’ lives and academic work. The research contributes to knowledge by theorising cross-pollination as a transformative practice, challenging traditional language education and affirming diverse identities and repertoires.

Supervisors: Associate Professor B Mendelowitz and Dr A Ferreira

VAWDA, Shamima Education

THESIS: The persistence of the teacher-centred modality in South African public primary schools: a matter of control and compliance

The thesis explores the persistence of teacher-centred modality in three Johannesburg public primary schools. It assumes that the modality is an institution in public primary schools. Using Ostrom’s institutional analysis and development framework, it examines the form of the typical teaching modality and how teachers perceive the structure that sustains it. The study concludes that the rational bureaucratic organisational form of schooling incentivises teachers to choose the teacher-centred modality. A satisficing solution to control learners and comply with policy prescriptions.

Supervisor: Professor B Fleisch

VORSTER, Adriana Catherina Psychology

THESIS: A Preliminary Investigation of the Psychometric Properties of the WISC-V and KABC-II for South African Children Experiencing Barriers to Learning and Development

There is a paucity of locally researched and culturally appropriate intelligence tests for use in South Africa. The present investigated the reliability and validity of two internationally recognised tests - the WISC-V and the KABC-II in a sample of South African children experiencing barriers to learning. This study serves as an example of an appropriate methodology for cross-cultural research. It also makes an original contribution to psychological assessment by bridging global theories with local realities.

Supervisor: Dr Z Amod

WHITCHER, Raymond Ernest Digital Arts

THESIS: Mercenaries, Monsters and Me: an Advocacy Study of the Plaited Exegesis Methodology Through the Creative Praxis of Comic Making

The candidate shows us that the boundary between making and thinking is not a line, but a braid. And in that braid lies a compelling future for practice-based research. The study provides a structured approach to engaging with intuitive creative practices, enabling a deeper understanding of the underlying critical motivations behind artistic decisions and their potential contribution to scholarly knowledge.

Supervisor: Dr C Duncan

XABA, Nomzamo Education

THESIS: Investigating how meaning making opportunities manifest in biology lectures by teacher educators at a South African university

This study explored how meaning making opportunities manifest in higher education biology lectures. Drawing from personal experience and underpinned by sociocultural and meaningful learning theories, the study investigated how teacher educators use social exchanges, especially talk, to foster student understanding. Data from classroom observations and interviews revealed that such opportunities often manifest through deliberately planned and creative use of social exchanges that are enacted through diverse strategies. The findings stress the importance of intentional teaching practices in promoting meaningful learning in biology education.

Supervisors: Associate Professor E Nyamupangedengu and Professor M Rollnick

ZITHA, Phethile Melba Psychology

THESIS: Whose school is it anyway: Narratives of schooling in a post-apartheid township school

The study explores nuanced interactions between teachers, learners, and parents in a post-apartheid township school. Through participatory action research, the candidate demonstrates how conditions of violent coloniality and intergenerational trauma may be resisted in relational acts of care. Participants narrate the painful subjugation of inequality in everyday life, but simultaneously imagine hopeful, emancipatory futures.

Supervisor: Professor J Bradbury

ZWANE, Job Anthropology

THESIS: “AmaShangane, the Destroyers”: Ethnicity and National Belonging in PostApartheid South Africa

This thesis investigates the stigmatised status of the Tsonga-Shangaan and the Southern Ndebele in South Africa. It argues that these groups elude state and popular conceptions of citizenship and belonging, relegating them to a position that is “in-between” that of a foreigner and a citizen. The thesis proposes that to understand contemporary ethnic violence in South Africa, it is important to consider how popular conceptions of citizenship and belonging come into conflict with those of the state.

Supervisors: Professor E Worby and Dr N Mngomezulu

FACULTY OF SCIENCE

DEAN: PROFESSOR N CHETTY

DEAN: PROFESSOR N CHETTY BSc Hons (Natal) MS PhD (U. Illinois Urbana-Champaign) MASSAf MSAIP

Doctor of Philosophy

ABDALLA, Saga Elsayed Ibrahim Physics

THESIS: Quantum mechanical local energy density applied to many-electron systems

Building on the foundational Chetty-Martin formalism and the recent theoretical framework proposed by Martin, Chetty, and Trinkle (2025), this thesis demonstrates that the local energy density of a many-electron system is uniquely defined when derived from the full many-body Hamiltonian, showing that non-uniqueness arises only from mean-field decompositions and not from the underlying physics.

Supervisors: Professor N Chetty and Dr R Warmbier

BECK, Thilo Florian Animal, Plant and Environmental Sciences

THESIS: Thermal biology and activity patterns of the Cape cobra (Naja nivea): implications for climate change

How reptiles adjust activity patterns to the thermal environment allows for prediction of their responses to climate change. This thesis investigated thermoregulatory strategies and activity patterns of free-ranging Cape cobras in the Kalahari, focusing on physiological thresholds, environmental constraints, and how body condition affected activity patterns. Biologging was used to explore the relationship between thermal biology and seasonal activity.

Supervisors: Professor G Alexander and Professor B Maritz

BERRY, Adam James

Molecular

and Cell Biology

THESIS: A comparison of the influence of candidate genetic variation on rotavirus, hepatitis B and pneumococcal conjugate vaccine immunogenicity in a black South African cohort

The candidate researched associations of genetic variation in histo-blood group antigens, innate immunity, vitamin D metabolism, and HLA class II expression with vaccine responses. He found that mutations in ABO, Secretor, and Lewis blood types and IL-4 pathways significantly influenced pneumococcal and hepatitis B vaccine responses in Black South Africans. This research provides important insights for future vaccine development.

Supervisors: Dr D De Assis Rosa and Associate Professor M Groome

BROTHWELL, Jessica Sian

Molecular

and Cell Biology

THESIS: Investigating a potential association between FOXP2, TBR1 and PAX6 and the effect of this interaction on transcriptional regulation

This thesis investigates how the transcription factors FOXP2, PAX6, and TBR1 interact with each other and with DNA during brain development. It reveals novel protein-protein interactions that influence DNA binding, uncovering regulatory mechanisms that may underlie autism spectrum disorders and offering insights into transcriptional control in neural differentiation.

Supervisor: Dr S Fanucchi

DAVIDS

, Bianca Leigh Chemistry

THESIS: Valorisation of phenolics obtained from cashew nutshell liquid (CNSL) for the synthesis of novel aromatic compounds

The candidate presented a PhD thesis on the sustainable synthesis of novel isochromans, flavones, and naphthalenes, derived from the renewable waste feedstock, cashew nutshell liquid - derived phenolics. By integrating greener reagents, and catalytic routes, the candidate demonstrated efficient preparation of bio-derived aromatic compounds with potential in medicinal chemistry and as UV-protective materials, thereby advancing environmentally responsible approaches to organic synthesis.

Supervisors: Professor C de Koning and Dr K Ngwira

DAYA, Tasvi Molecular and Cell Biology

THESIS: Investigating the effects of cholesterol-depletory agent, 2-hydroxylpropylß-cyclodextrin, on Pancreatic Cancer and drug resistance in vitro and in vivo

This study explored cholesterol metabolism’s role in chemoresistance in pancreatic cancer. Using cell and animal models, the cholesterol-lowering agent HPßCD was combined with standard therapies. Findings showed that targeting cholesterol improved responses to 5-FU, highlighting a potential therapeutic strategy to overcome drug resistance in advanced pancreatic cancer.

Supervisor: Professor M Kaur

DE

MAAYER, Johanna Wlihelmina

Molecular and Cell Biology

THESIS: The WHO, WHERE and HOW of the bacteriome associated with pancreatic cancer

This thesis addresses the potential relationship of the bacteriome with PDAC through the use of 16S ribosomal RNA-based metataxonomic profiling to identify a PDAC-specific microbiome. It also represents the first investigation in Africa and globally to apply whole metagenome sequencing directly to pancreatic tissue to characterise the PDAC-associated microbiome.

Supervisor: Dr A Botes

DILEBO, Kabelo Bramley

THESIS: Bio-renewable based synthesis of oxygen and nitrogen containing heterocyclic natural products

Chemistry

The research explored the sustainable synthesis of valuable natural products from bio-based materials. Utilizing cashew nutshell liquid phenolics and vanillin, he developed efficient synthetic routes to complex anthraquinones and alkaloids. His work advances sustainable chemical syntheses by demonstrating the potential of renewable feedstocks in organic synthesis, contributing significantly to the field of green and renewable chemistry.

Supervisors: Dr K Ngwira and Professor C de Koning

FAKUDE, Colani

Thembinkosi

Chemistry

THESIS: Electrocatalytic properties of palladium-based high-entropy materials toward ethanol oxidation and water-splitting reactions

This work explores the rational design of Pd-based high-entropy electrocatalysts using the modified Pechini method. It demonstrates enhanced activity/durability for ethanol oxidation and water splitting reactions in alkaline environments, outperforming the benchmark of the noble metal Pd/C. This showcases their promise for versatile, next-generation sustainable energy technologies.

Supervisor: Professor K Ozoemena

GOLDFEIN, Mande

Molecular and Cell Biology

THESIS: The effect of neurodevelopmental micronutrients on the structure, DNA binding and transcriptional regulation of FOXP2

This research examines the interactions between neurodevelopmental micronutrients (retinoic acid, folic acid, PQQ) and the FOXP2 transcription factor, crucial for speech and cognition. Through comprehensive in silico, in vitro, and cell based studies, the distinct impacts of these micronutrients on FOXP2’s structure, DNA binding affinity, and transcriptional activity are demonstrated. This work provides foundational evidence to guide nutritional interventions for cognitive health.

Supervisor: Dr S Fanucchi

JARVIS, Devon Computer Science

THESIS: Not all who wonder are lost: steps towards a theory of controlled semantic cognition

This thesis investigates controlled semantic cognition (CSC) using artificial neural networks. It extends prior work from deep linear to nonlinear models, showing they replicate six CSC properties but lack systematic generalisation. Metalearning enables this ability but sacrifices simplicity. The research highlights both the promise and limitations of neural networks in modeling human cognition, pointing to challenges in achieving the flexibility and adaptability of the human mind.

Supervisors: Professor B Rosman, Professor A Saxe and Professor R Klein

JOSHUA, Alicia Celeste Molecular and Cell Biology

THESIS: Investigating the effects of antioxidants on the transcriptional activity of YY1 and FOXP3

The thesis deciphered how the body fine-tunes its immune response. By revealing how antioxidants and specific DNA sequences modulate the partnership between transcription factors FOXP3 and YY1, this work provides a new molecular blueprint for immune control, paving the way for innovative treatments for immune-related disorders.

Supervisor: Dr S Fanucch

KALPAKIOTIS, Photis Geology, Palaentology and Geophysics

THESIS: The lithostructural delineation of the Kinsevere Hill mineral system, Katanga province, DRC

The doctorate focussed on the study of the influential links of geological structures, geochemical trends, lithological links and rheological properties to copper mineralisation at the Kinsevere Mine, Katanga Province in the Democratic Republic of Congo. This study unveils the intricate interplay of these trends with three dimensional geospatial modelling.

Supervisors: Professor J Kinnaird and Associate Professor P Nex

KOCK, Simone Geology, Palaentology and Geophysics

THESIS: Palaeoclimate signature from Permian and Triassic fossil woods of Southern Africa

For a thesis which uses growth rings from Permian-Triassic fossil woods to investigate climate and wood diversity trends between four Karoo-age basins in southern Africa, as well as possible climate and wood diversity correlations with the end-Guadalupian and end-Permian mass extinction events.

Supervisor: Professor M Bamford

KUBAYI, Jollet Truth Mathematics

THESIS: On the symmetry analysis of ordinary difference equations and polynomial time fractional equations

This thesis applies Lie symmetry analysis to ordinary difference equations and polynomial time-fractional differential equations. Extending symmetry methods to higher-order recurrence relations and fractional calculus, simplifying nonlinear evolution equations. Examines third- and fifth-order time-fractional polynomial equations, deriving power series solutions and analysing their convergence. The findings enhance understanding and solution techniques with applications in mathematics computational sciences.

Supervisors: Professor S Jamal and Associate Professor M Folly-Gbetoula

LAU, Tracy Anne Chemistry

THESIS: Molecular dynamics from slow diffraction experiments

This thesis reports on the use of X-ray diffraction to monitor the movements of molecules during photochemical or thermochemical reaction in organic charge transfer co-crystals. The information will add to the body of work regarding crystal engineering and its role in solid-state reactions.

Supervisors: Associate Professor M Fernandes and Professor D Levendis

MAPILOKO, Mabatho Geology, Palaentology and Geophysics

THESIS: Chromite and sulphide mineralization of the Uitloop ultramafic bodies in the northern limb of the bushveld complex, South Africa

Integrating petrological, geochemical, chromite chemistry, and multiple sulphur isotope systematics, this study resolves the stratigraphy of the Rustenburg Layered Suite on Uitloop Farm in the northern limb of the Bushveld Complex. Results reveal a previously unrecognized Platreef offshoot, establishing this area’s potential for Ni-Cu-PGE resources and refining layered intrusion metallogeny.

Supervisors: Associate Professor M Iudovskaia and Associate Professor P Nex

MASEMOLA, Clinton Michael Chemistry

THESIS: Microwave synthesis of nickel selenides and nickel sulfides supported on hollow carbon spheres and polyaniline nanocomposites for chemical sensors and hydrogen evolution reaction

Thesis explores PANI- and HCSs-based nanocomposites for environmental and energy applications. The research focuses on developing room-temperature chemiresistive sensors for volatile organic compound detection at room temperature and enhancing alkaline hydrogen production via nickel-based electrocatalysts. Using eco-friendly microwave-assisted synthesis, the study demonstrates improved sensor sensitivity, selectivity, and catalytic performance, contributing to sustainable technologies aligned with global climate and energy goals.

Supervisors: Dr E Linganiso, Professor Z Tetana and Prof N Moloto

MBONANI, Sipho Ebenezer Animal, Plant and Environmental Sciences

THESIS: Assessing the morphological, physiological and genomic variability of Opuntia engelmannii Salm-Dyck (Opuntioideae: Cactaceae) populations in South Africa as the basis for host-selection by potential biocontrol agents

The candidate investigated the ecological, morphological, physiological, and genomic variability in diploid and polyploid Opuntia engelmannii populations in South Africa to understand their invasion success. Results show that polyploidy enhances phenotypic plasticity and expression, influencing host suitability for biological control agents. This research was conducted jointly at the University of the Witwatersrand and the University of Florida as part of a prestigious Fulbright Fellowship.

Supervisors: Professor M Byrne, Associate Professor K Glennon and Dr S Mayonde

MHLANA, Yongezile Chemistry

THESIS: Conventional and microwave-assisted synthesis of transition metal oxides supported on nitrogen-doped multiwalled carbon nanotubes for application in hydrogen evolution and oxygen evolution reactions

Transition metal oxides supported on Nitrogen-doped multiwalled carbon nanotubes (N-MWCNTs) were explored by two approaches. The first was microwave-assisted synthesis, where cobalt oxide and iron oxide were produced and then combined with (N-MWCNTs) to form a composite. The second approach involved an in-situ preparation of mono-, bi-, and tri-metallic oxides of nickel, iron, and cobalt supported on N-MWCNTs using chemical vapor deposition. Both composites were tested for their catalytical activity in hydrogen evolution reaction and oxygen evolution reaction.

Supervisors: Professor Z Tetana, Dr L Linganiso and Professor J Moma

MINNAAR, Jessica Jaime Animal, Plant and Environmental Sciences

THESIS: Circumscription of Galtonia (Hyacinthaceae), a Drakensberg nearendemic genus, and potential drivers of speciation

The study assesses the generic circumscription and drivers of speciation in Galtonia. The monophyly of the genus is confirmed, and a new monotypic genus, Estella saundersiae, is described. Adaptations to ecological factors, pollinators and microhabitat differences, are reflected in their floral and vegetative traits.

Supervisors: Professor G Goodman and Professor S Steenhuisen

MMOTONG, Surprise Cleopadra Geography, Archaeology and Environmental Studies

THESIS: Education for an emerging green economy in South Africa: perspectives on skills development in water resource management; a study of Johannesburg

The study examined the extent to which South African universities are embedding green skills in their curriculum, in response to South Africa’s aspirations to be carbon neutral by 2050. The findings suggest a significant gap between curricula development and the strategic needs of the green economy, noting limited sustainability focus, insufficient practical training, and lack of specialised water resource content, thus, producing graduates who are ill-equipped and unprepared to understand the complex nature of the water sector’s evolving demands.

Supervisor: Professor D Simatele

MODISANE, Kamogelo Chemistry

THESIS: Microwave-assisted synthesis of nitrogen-doped carbon dots for applications in sodium-ion batteries

This thesis reports the microwave-assisted synthesis of nitrogen-doped carbon dots (NCDs) from citric acid and ethylenediamine, with optimisation of their structural and optoelectronic properties. It further investigates their structural evolution into carbon sheets and spheres through annealing in argon, hydrogen, and acetylene, and demonstrates their potential as sustainable anode materials for sodium-ion batteries.

Supervisors: Dr M Maubane-Nkadimeng, Associate Professor D Wamwangi and Professor N Coville

MODISE, Refiloe

Petronella Chemistry

THESIS: Microwave-assisted synthesis of iron tetrapyrazinoporphyrazine and molybdenum nickel nanomaterials and their electrocatalytic properties toward tramadol oxidation and oxygen reactions

This study demonstrated a microwave-assisted method as a fast and costeffective approach towards the synthesis of iron (ii) tetrapyrazinoporphyrazine and molybdenum nickel nanomaterials, as well as their electrocatalytic performance in oxygen and tramadol reactions. The findings contributed new knowledge on the use of iron (ii) tetrapyrazinoporphyrazine for next-generation rechargeable zinc-air batteries and addressed matrix effects towards the sensitive detection of tramadol in real saliva.

Supervisor: Professor K Ozoemena

MOGONONG, Buster Percy Animal, Plant and Environmental Sciences

THESIS: Deagrarianisation in South Africa: past and current spatio- temporal trends of small-scale crop farming and its drivers of change in rural South Africa

This research assessed the spatio-temporal changes and associated drivers in small-scale crop farming in two former apartheid homelands in South Africa across multiple spatial scales, spanning across three provinces, KwaZulu-Natal, Northern Cape and Free State. The results highlighted climate variability as a driver of small-scale crop farming abandonment, and these findings were corroborated by local perceptions in the study areas.

Supervisors: Dr J Fisher, Dr G Feig, Dr H van der Merwe and Associate Professor W Twine

MOKOTO, Tebogo Matlhogonolo Lorato Molecular and Cell Biology

THESIS: Supramolecular synthesis of cis-1-amino-2-indanol derivatives: an in vitro and in silico analysis of drug efficacy against HIV-1 South African subtype c protease

The candidate synthesised novel cis-1-amino-2-indanol compounds and elucidated the crystal structures at the molecular level. The compounds were screened for activity against the HIV-1 South African subtype C protease. The compounds showed promise as potential protease inhibitors. The work revealed supramolecular finesse, blending pharmaceutical relevance with structural artistry.

Supervisors: Professor Y Sayed and Professor M Smith

MONYATSI, Thabo Nelson Chemistry

THESIS: An investigation on the development of ionic functionalised iron(II) complexes derived from bis(imino)pyridyl ligands for ethylene oligomerisation

This study reports on the preparation of new iron (II) complexes derived form 2,6-diiminepyridine ligands and their performance as catalysts for ethylene transformation. This research contributes new knowledge on the development of biphasic catalyst for ethylene transformation in ionic liquids.

Supervisor: Dr J Van Wyk

MOONSAMY, Darisia

Molecular and Cell Biology

THESIS: Expression profiling of interferon-stimulated genes in peripheral blood mononuclear cells derived from healthy Individuals and individuals infected with SARS-CoV-2

This work introduces SASCRiP, a robust single cell RNA-sequencing pipeline integrating widely used tools to uncover cell-type specific interferon-driven responses. In stimulated PBMCs, monocytes exhibited a unique IFN-α/ß ISG signature that was described for the first time in this study. These insights deepen our understanding of type I IFN biology and its roles in diseases like COVID-19.

Supervisor: Dr N Gentle

MPHAHLELE, Malehlogonolo Ramogohlo Rosemary Chemistry

THESIS: Silica-anchored acylthioureas and amines as adsorbents for the extraction of platinum group metals

This project explored silica-anchored acylthioureas as effective extractants for recovering platinum group metals (PGMs) from aqueous solutions simulating industrial PGMs waste. It details the synthesis and characterization of novel acylthiourea-modified silica adsorbents. The extractants demonstrated high efficiency (56-99%), selectivity, and reusability for platinum and palladium extraction in both batch and fixed-bed column systems, outperforming conventional amine adsorbents. This offers a sustainable solution to PGMs’ demand and environmental pollution.

Supervisors: Associate Professor I Kotze, Dr A Mosai and Professor H Tutu

MULAUDZI, Rudzani Computer

Science

THESIS: Deep learning-based Bayesian network parameter learning approach for high dimensional and low data quality contexts

Bayesian networks, key to explainable and transparent AI, are complex to learn in high-dimensional and low-data-quality contexts. This thesis introduces Deep Parameters, a technique integrating Deep Learning into Bayesian networks to enable parameter learning in complex domains. The method excels in noisy, imbalanced, and high-dimension settings.

Supervisor: Professor R Ajoodha

MUPENDA, Mutuza Lupepe Jacques Geography, Archaeology and Environmental Studies

THESIS: Social and entrepreneurial networks in the cross-border fish trade between Democratic Republic of Congo and South Africa

The study examines social and entrepreneurial networks in the cross-border fish trade between the Democratic Republic of Congo and South Africa, focusing on Johannesburg. It aims to map fish imports and analyse partnerships within emerging entrepreneurial firms based on interviews with 100 entrepreneurs. Key findings highlight the role of social capital and trust in EEF performance, indicating that stronger network ties contribute to success.

Supervisor: Dr A Wafer

MWENDWA, Geoffrey Mutua Physics

THESIS: Correlation of ferroic orders in multiferroic rare-earth composite thin films

This research reveals critical temperature-dependent ferroic correlations in TbMnO3, TbMn2O5, and EuTiO3 thin films, highlighting fundamental limitations and pathways for optimizing ferroic coupling for next-generation memory and energy storage technologies. While magnetoelastic coupling is suppressed at room temperature due to weak spin-lattice interactions, measurable magnetoelectric coupling coefficients (3×10-9 – 10-8 V/cm·Oe) persist through local mechanisms involving short-range spin clusters.

Supervisors: Associate Professor D Wamwangi, Dr L Kotane and Professor H Dil

NDADI, Ilenikemanya Diinineni

Opawa

Computational and Applied Mathematics

THESIS: A transformed wavelet numerical technique for the optimal control of geomagnetic disturbances’ effects focusing on geomagnetically induced current

The thesis focused on the modelling of Geomagnetic Induced Current (GIC) in a power network with the aim of minimising the energy in the GIC signal using transformed wavelet techniques for optimal control. The results from the model revealed the time of the day when GIC is optimal. Comparisons were also made between the results of the discrete as well as the continuous wavelet transformation. The latter proves to be a good tool when it comes to GIC modelling and monitoring.

Supervisor: Professor M Ali and Professor S Reju

NGXONGO, Nduduzo Andrias

Geography, Archaeology and Environmental Studies

THESIS: Climate change risk and adaptation strategies among tourism operators in Ethekwini, South Africa

This doctoral study investigates the impacts of climate change on tourism operators in the eThekwini Metropolitan Municipality. It explores operators’ perceptions of risks and adaptive responses. The research contributes to understanding climate risks and adaptation in urban tourism contexts, offering recommendations for enhancing resilience in the Global South’s tourism sector.

Supervisor: Professor J Fitchett

NKUNA, Oscar Mathematics

THESIS: Packing chromatic numbers of regular graphs

The thesis investigates packing chromatic numbers of regular graphs, characterizing cubic and quartic graphs with minimal values, establishing tight lower bounds by diameter, and constructing extremal examples. It also explores hypercube graphs, offering partial results and linking future progress to binary code availability. A general lower bound for r-regular connected graphs is provided.

Supervisors: Professor E Jonck and Professor J Hattingh

OBERHOLZER, Zane Molecular and

Cell Biology

THESIS: Identification of gonad-specific, cis-acting enhancers in Gallus gallus

This thesis examines the regulatory mechanisms driving avian gonadal development. Through ATAC-Seq, comparative genomics, and a novel Tol2based enhancer reporter construct, two male-specific DMRT1 enhancers were functionally tested. The research establishes the first enhancer screening platform in chick gonads, advancing understanding of sex-determining gene regulation and offering implications for human health and poultry science.

Supervisors: Associate Professor N Nikitina and Dr D Hockman

OGADA, Jimodo Joretta Chemistry

THESIS: Electrocatalytic properties of high-entropy inverse spinel oxides toward water-splitting reactions

This thesis explores novel high-entropy inverse spinel oxides, synthesising and characterising these nanomaterials for green hydrogen production. By optimising synthesis parameters, this work demonstrates their exceptional performance as electrocatalysts for alkaline water splitting. This research provides significant advancements in the field of sustainable energy, offering a promising pathway toward efficient and scalable hydrogen fuel generation.

Supervisor: Professor K Ozoemena

ONYEOGU, Tariye Geology, Palaentology and Geophysics

THESIS: Sedimentological, geochemical and palaeoclimatic significance of Lefika la Noka tufa, Cradle of Humankind, South Africa

This study applies integrated field studies, core drilling and laboratory hyperspectral imaging, sedimentological, petrographic and geochemical techniques to explore Quaternary environmental and climate variability preserved in the Lefika la Noka tufa deposits within South Africa’s Cradle of Humankind.

Supervisors: Dr Z Jinnah, Dr T Makhubela and Professor L Berger

PILLAY

, Ruvesh Pascal

Molecular and Cell Biology

THESIS: Investigating the role of KS-01 as an anti-cancer agent in Colorectal Cancer

Colorectal cancer (CRC) poses treatment challenges due to its heterogeneity and cholesterol-rich phenotype. This study investigates KS-01, a cyclodextrin that depletes cholesterol, in combination with 5-Fluorouracil and Oxaliplatin. KS-01 co-treatment reduces tumour size by up to 75% and inhibits WNT signalling through ß-catenin and LRP5/6 downregulation. These findings highlight KS-01 as a promising novel therapeutic approach for CRC.

Supervisor: Professor M Kaur

PLAKAS, Alexandra Mary Chemistry

THESIS: Synthesis and characterisation of novel functionalised indolin-2-ones as potential antimalarial agents

The thesis reports the synthesis of a novel series of 3-amino-3-phenethylindolin-2ones as part of lead optimisation of the antimalarial hit compound, Cipargamin. This work identified an unusual chemoselectivity in the Grignard addition to isatin-derived imines, yielding a series of 3-imino-2-phenethylindolin-2-ols that displayed antiplasmodial activity in vitro against the drug-resistant FCR-3 strain of P.falciparum.

Supervisors: Associate Professor A Rousseau, Dr S Ntsimango and Professor M Bode

RATSHIEDANA, Phathutshedzo Eugene Geography, Archaeology and Environmental Studies

THESIS: Integrating remote sensing and smart-field based approaches for assessing irrigated crop water use in arid environments

This research addresses the evapotranspiration data gap in South Africa’s arid irrigated areas combining field smart measuring tools data with satellite observations. The study findings inform sustainable irrigation practices and offer scientifically validated methods that can guide agricultural water use policies, contribute to the national efforts toward climate-resilient and water-efficient food production systems.

Supervisors: Professor Mohamed Abd Elbasit, Associate Professor E Adam and Professor J Chirima

RICHMAN, Ronald David

THESIS: Applying deep learning in actuarial science

Statistics and Actuarial Science

The thesis explores interpretable deep learning for actuarial modeling. It introduces novel architectures like LocalGLMnet, ICEnet, and multi-task networks to enhance model explainability, perform variable selection, and address issues of fairness and uncertainty quantification in actuarial practice.

Supervisors: Professor R Harris and Professor M Wuthrich

RUDRA, Anik

Physics

THESIS: Study of type IIB superstring solutions through lower-dimensional dyonically gauged supergravity

The thesis investigates supersymmetric solutions to non-geometric backgrounds in Type IIB supergravity within the specific framework of lower-dimensional gauged extended supergravity featuring 1/2-maximal SUSY vacua with marginal deformations. In this setting, we construct BPS black-holes and scale-separated solutions and uplift them to Type IIB J-fold backgrounds. We also develop a new method for systematically obtaining consistent truncations of the maximal theory, providing a controlled framework to study marginal deformations, holographic duals, and reduced low-energy models.

Supervisor: Professor K Goldstein

SELLO, Tlotliso Cornelius

Molecular and Cell Biology

THESIS: Molecular classification and next-generation sequencing analysis of potential insect parasitic nematodes and their associated gut-bacteria

Chemical insecticides pose threat to non-target organisms and lack activity as pests develop resistance against them. Therefore, more ecofriendly pest control approaches are needed. Biological pest control methods such as the use of entomopathogenic nematodes are a promising approach in the integrated pest management systems. This study focused on the identification and characterisation of potential insect parasitic nematodes and their associated bacteria.

Supervisor: Dr T Lephoto

SETATI, Boitumelo Chemistry

THESIS: Optimisation of green extraction of Moringa leaf powder using pressurised hot water extraction and testing of the extract as biostimulants to increase food security

This research explored how Moringa leaves, extracted using Pressurised Hot Water Extraction, a green extraction technique, can be utilised to develop effective natural biostimulants. These extracts enhanced seed germination, plant growth and nutrient uptake when applied to crops. The findings offer a promising approach to reducing synthetic fertiliser use and promoting sustainable farming practices for improved food security.

Supervisor: Professor L Chimuka

SMITH, Tasha Giulia Geography, Archaeology and Environmental Studies

THESIS: Investigating the role of mesoscale eddies on heat and carbon in the South Atlantic Ocean

his thesis investigates the role of mesoscale eddies on heat and carbon using a high-resolution (1/12°) physical-biogeochemical coupled model. It explores how different eddy types influence air-sea heat and CO2 fluxes and storage. Eddy dynamics are investigated using tracer budgets, and the role of long-lived eddies on air-sea fluxesis explored considering regional, seasonal and life cycle variability.

Supervisor: Professor F Engelbrecht

SODZIDZI, Zizikazi Chemistry

THESIS: Synthesis of graphene-reinforced nanocomposite polymers for building and construction technology

This thesis investigates two-dimensional nanomaterials: graphene nanoplatelets (GNPs), nitrogen-doped GNPs (N-GNPs), boron-doped GNPs (B-GNPs) and porous hexagonal boron nitride (p-BN) as nanofillers in polyvinyl chloride (PVC). Composites were synthesised by melt blending with the mentioned nanofillers. The mechanical and thermal properties of PVC were improved because 2D nanofillers offer strong interfacial interactions and can replace the conventional fillers in PVC production.

Supervisor: Professor Z Tetana, Dr S Mhlanga and Professor J Moma

SOOBRAMONEY, Lee Anne Odelle

Molecular and

Cell Biology

THESIS: The genomics of the South-African entomopathogenic nematode, Steinernema sp. strain LAS-2021

This thesis investigates the accurate protein-coding gene repertoire of a SouthAfrican entomopathogenic nematode by acquiring the organism’s wholegenome and transcriptome through next-generation sequencing and devising a unique strategy for computational genome annotation. This thesis is the first to predict the lowest number of evidence-supported protein-coding genes for a steinernematid species and establishes a new standard for future steinernematid genome projects.

Supervisor: Professor V Gray

SZEWCZUK, Alekzandra Mari Animal, Plant and Environmental Sciences

THESIS: Mapping and modelling invasive alien plants at landscape scales: remote sensing applications of distribution maps and ecological niche models using Google Earth Engine

Combining remote sensing classification with ecological niche modelling in Google Earth Engine, this work delivers a scalable method for monitoring invasive plants. The novel contribution is the first landscape-scale, growth-patterndriven, satellite-based classification of invasive alien plants. Case studies on pompom weed and invasive Tamarix trees show improved accuracy by tracking phenology of species over time, enabling evidence-based management across South Africa.

Supervisors: Professor E Witkowski and Professor M Byrne

TORPEY, David Computer Science

THESIS: Towards understanding visual self-supervised learning: robustness, properties, and applications

The behaviour and properties of visual self-supervised learning (SSL) is not wellunderstood, particularly in comparison to supervised learning. Various factors of SSL were explored, including covariance properties, viewpoint invariance, performance in non-natural, non-object-centric domains, and model type analyses. It was found that SSL was more viewpoint invariant, benefitted from transformation covariance, and had mixed benefits in non-natural domains.

Supervisor: Professor R Klein

WEISS, Bailey Mark Geology, Palaentology and Geophysics

THESIS: The origin of crocodylomorpha: growth history, systematics, and body size evolution

The research sought to understand the relationships, growth, and evolution of early crocodilians from South Africa’s Elliot Formation. Using cutting edge micro-CT images, osteohistology, and comparative anatomy, he described a new gigantic predator, developed a hypothesis for the evolution of crocodilian growth, and clarified the identity of historical specimens collected more than 100 years ago.

Supervisors: Professor J Choiniere, Professor J Botha and Dr K Dollman

WHITTAKER, Gregory Angus Statistics and Actuarial Science

THESIS: Equity in compensation for damages in delict

This thesis addresses inequities in South African delictual compensation by advancing data-driven contingency modelling, expanding actuarial participation through the amicus curiae mechanism, reforming compensation for non-serious injuries, and promoting evidence-based actuarial costing for medical malpractice claims. These methodologies enhance equity and strengthen sustainability in the assessment of pecuniary losses and policy reform.

Supervisor: Professor R Harris

ZOWA, Peace Geology, Palaentology and Geophysics

THESIS: An apatite to unravel magma chamber dynamics, mantle sources and metallogenesis in the Bushveld Complex

The research explores how the world’s largest layered intrusion, the Bushveld Complex, and its satellite bodies formed. By analysing apatite mineral chemistry, his research uncovered evidence of mixing between different magmas and contamination from surrounding rocks. results reveal significant strontium-neodymium isotopic variability and decoupling in apatite, contrasting homogeneous zircon hafnium data. These findings provide fresh insights into how these ancient magmatic systems evolved and became enriched in valuable metals such as PGEs.

Supervisors: Professor G Bybee and Dr B Hayes

The Wits Sterkfontein Caves display