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16 April 2025 | Story Andre Damons | Photo Kaleidoscope Studios
Ambrose du Plessis
Dr Ambrosé du Plessis, lecturer in the Department of Public Administration and Management, at his graduation of the University of the Free State (UFS) April graduation ceremonies.

With coalition governments becoming more common in South Africa and proven to be unstable, a lecturer at the University of the Free State (UFS) devised an alternative contextual coalition-led framework towards a functioning political-administrative dichotomy. This instability adversely affects service delivery. 

The framework was devised by Dr Ambrosé du Plessis, lecturer in the UFS Department of Public Administration and Management, as part of his PhD research and focused on the City of Johannesburg Metropolitan Municipality. He hopes it can offer valuable lessons for the broader context of South Africa’s evolving political landscape, particularly in light of the 2024 national coalition-led Government of national Unity (GNU). 

Dr Du Plessis graduated with a Doctor of Philosophy with specialisation in Public Administration and management at the UFS April graduation ceremonies. Prof Liezel Lues, Professor of Public Administration and Management, in the Department of Public Administration and Management, was his supervisor. 

Dr Du Plessis is part of the newest cohort of the Emerging Scholar Accelerator (ESAP) mentoring programme for mostly lecturers who are less than five years post-PhD. This group falls within the Transformation of the Professoriate Mentoring Programme which aims to grow a critical mass of excellent emerging scholars at the university who are equipped to assume senior academic and research positions. 

 

Political-administrative dichotomy

With his thesis titled ‘The Political-Administrative Dichotomy in coalition-led metropolitan municipalities: A South African Perspective’, he focuses on the interface between politics and administration. Says Dr Du Plessis: “The political-administrative dichotomy discourse is unable to account for coalition politics in most of South Africa’s metropolitan municipalities. More importantly, political and administrative instability has become common in most of South Africa’s coalition-led metropolitan municipalities.

“What makes my research particularly interesting is that it transcends Public Administration by incorporating contributions from Political Science through critical discourse analysis. I also conducted interviews with political office-bearers, the South African Local Government Association in Gauteng province, as well as subject experts – both national and international – in public administration, political science, and constitutionalism, to uncover deeper nuances relating to local lived experiences and international perspectives,” says Dr Du Plessis. 

According to him, the increasing prevalence of coalition-led governments in South Africa’s metropolitan municipalities necessitates a reconceptualisation of the political-administrative interface. Traditional interpretations of the political-administrative dichotomy have proved inadequate in explaining the multifaceted and dynamic interactions characteristic of contemporary coalition governance. This study responds to that gap by proposing a nuanced, context-sensitive, and theoretically enriched framework that better reflects the realities of coalition-led metropolitan municipal governance in the South African context.

 

The findings of the research 

“Building on comparative and critical discourse analyses, this research advances a polychotomous framework – one that transcends mono-theoretical and discipline-bound approaches by integrating insights from Public Administration and Political Science. The framework acknowledges the existence of both formal and informal political-administrative relationships and interrogates how these configurations influence governance outcomes in coalition-led municipalities, with specific reference to the City of Johannesburg (CoJ) Metropolitan Municipality.

“The findings underscore the limitations of classical dichotomy theory, particularly in accounting for the intersectionality between coalition politics and the institutional architecture of local government. In contrast to the dichotomy discourse, which narrowly focuses on political principals and administrative office-bearers, this research situates the interface within a broader institutional and societal matrix that includes political parties, non-state actors, and citizen constituencies.”

Dr Du Plessis say although this study was confined to local government and the CoJ, he believes it makes a meaningful knowledge contribution with real-world impact, paving the way for continued exploration and innovation in both research and practice concerning the political-administrative interface in coalition-led metropolitan municipalities. “More importantly, I hope it sparks critical reflection on the central nervous system of government and governance in South Africa, highlighting the urgent need to reconfigure not only political and administrative arrangements, but also the broader governance frameworks required to manage coalition politics effectively.”

 

PhD journey 

Obtaining his PhD, Dr Du Plessis says, is extremely emotional as he hopes to have inspired the broader family and future generations of students. It is both a liberating and proud moment for him for which he is deeply grateful and extremely overjoyed. This is not only the achievement of a personal and academic goal, but also the fulfilment of a journey filled with perseverance, growth, and purpose.

Like most PhDs, his journey was characterised by challenges that not only tested his intellectual ability but also his drive to succeed. There were moments of “profound loneliness”, self-doubt and even an overwhelming sense of guilt and shame. He had to deal with mental health challenges and experienced the well-known imposter syndrome. However, the support from his wife, Natasha, and Prof Lues, as well as colleagues like Dr Marevé Biljohn, Head of the Department of Public Administration and Management, the Faculty of Economic and Management Sciences PhD support group under the leadership of Prof Tina Kotze and Mrs Igna du Plooy and the REAP programme under the leadership of Dr Henriette van der Berg and Dr Karen Booysen, were essential in completing his PhD. They guided him through the academic and emotional trials of this journey with unwavering compassion.

News Archive

Mathematical methods used to detect and classify breast cancer masses
2016-08-10

Description: Breast lesions Tags: Breast lesions

Examples of Acho’s breast mass
segmentation identification

Breast cancer is the leading cause of female mortality in developing countries. According to the World Health Organization (WHO), the low survival rates in developing countries are mainly due to the lack of early detection and adequate diagnosis programs.

Seeing the picture more clearly

Susan Acho from the University of the Free State’s Department of Medical Physics, breast cancer research focuses on using mathematical methods to delineate and classify breast masses. Advancements in medical research have led to remarkable progress in breast cancer detection, however, according to Acho, the methods of diagnosis currently available commercially, lack a detailed finesse in accurately identifying the boundaries of breast mass lesions.

Inspiration drawn from pioneer

Drawing inspiration from the Mammography Computer Aided Diagnosis Development and Implementation (CAADI) project, which was the brainchild Prof William Rae, Head of the department of Medical Physics, Acho’s MMedSc thesis titled ‘Segmentation and Quantitative Characterisation of Breast Masses Imaged using Digital Mammography’ investigates classical segmentation algorithms, texture features and classification of breast masses in mammography. It is a rare research topic in South Africa.

 Characterisation of breast masses, involves delineating and analysing the breast mass region on a mammogram in order to determine its shape, margin and texture composition. Computer-aided diagnosis (CAD) program detects the outline of the mass lesion, and uses this information together with its texture features to determine the clinical traits of the mass. CAD programs mark suspicious areas for second look or areas on a mammogram that the radiologist might have overlooked. It can act as an independent double reader of a mammogram in institutions where there is a shortage of trained mammogram readers. 

Light at the end of the tunnel

Breast cancer is one of the most common malignancies among females in South Africa. “The challenge is being able to apply these mathematical methods in the medical field to help find solutions to specific medical problems, and that’s what I hope my research will do,” she says.

By using mathematics, physics and digital imaging to understand breast masses on mammograms, her research bridges the gap between these fields to provide algorithms which are applicable in medical image interpretation.

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