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13 March 2024 Photo Sonia Small
Prof Sethulego Matebesi
Prof Sethulego Matebesi is an Associate Professor and Academic Head of Department of Sociology at the University of the Free State.

Opinion article by Prof Sethulego Matebesi, Associate Professor and Academic Head of Department of Sociology, University of the Free State.


There was a time when weekly news coverage of South Africa was dominated by various forms of racism, racial discrimination, xenophobia, and related intolerance incidents that painted a grim picture of respect for human rights

However, in the history of contemporary South Africa there has been plenty of optimism about the prospect of deepening the understanding of human rights in order to entrench a human rights culture among citizens. This optimism is underscored by a range of deliberate actions by the South African government to promote, protect, and monitor the development and observance of human rights through, for example, the South African Human Rights Commission and the Commission for Gender Equality.

Yet, while these institutions – and many other policy instruments to ensure compliance – are central to creating an environment conducive to advancing rights enshrined in the Bill of Rights, citizens also hold significant responsibility to prevent the escalation of discrimination and racial tension. But many of us face an uncomfortable truth we have become accustomed to avoiding: the ability to show unusual restraint in the face of injustice.

The challenge of combating practices that glorify intolerance

Beyond formal political rights, human rights also entail the progressive realisation of the right to the structural social determinants of well-being, such as access to clean water, food, and a healthy environment. However, while the process of social change in South Africa has many unique attributes, the response to the process reflects two extremes.

There are, on the one hand, those who cultivate an image as defenders of the rights of the ‘oppressed’ and are predominantly black activists, and on the other hand, anti-transformation forces who stall the move of the country towards a more inclusive and egalitarian future and are primarily white activists. These activists, whether advancing the reclamation of rights, perpetuate legacies of the past instead of asserting a positive commitment to eradicating socially constructed barriers to equality.

These activists are found everywhere. They are part of our education, religious, political, and social establishments. Reflecting on the painful past of the country, these activists do not help foster diversity as an ethos but advance the conscious and unconscious practices of structural racism. Aided by hyper-personalised social media feeds, these activists can stretch the boundaries of logic and destabilise fragile and established democratic and human rights.

The problem, they claim, is that those who embrace diversity and want to find amicable solutions to longstanding social injustices are either advocates of white supremacy or want to abrogate their right to freedom of expression. In such cases, when people in a hate frenzy find something to hate together, they become bonded. And anything contrary to their beliefs goes into an echo chamber of mockery. 

I do not want to establish a potentially trivialising affinity with branding activists who assert their rights as an attack on human rights. But attention is drawn to instances where noble objectives to confront the tentacles of human rights abuses have been weaponised against what is perceived as ‘the other.’

But how can we navigate this fundamental societal defect? Collective agency to advance the ethos of human rights

After three decades of democracy, attempts to eliminate systematic and institutionalised under-privilege must be welcomed. Likewise, our response to the perceived threats to efforts to enhance diversity as an ethos in public institutions and society matters. In many instances, when subjugated to hatred, hostility, or even violence, there is a tendency to believe that the best approach to such an absurd situation is more absurdity. At its most benign, such a response is not helpful to efforts to embrace diversity. At its weirdest, it garners public sympathy for hate groups and activists.

While there have been concerted efforts internationally and nationally for the progressive realisation of social rights and efforts to strengthen democratic resilience and rights-respecting societies, South Africans have been passing the buck. Rights-respecting citizens have a choice to make. They can continue to pass the buck or help build a culture where everyone achieves their potential and develops into responsible citizens.

I am convinced that beyond formal politics, the attainment of respect for cultural diversity and professing the freedom, equality, and unity of all peoples are contingent upon our collective activism and shared commitments to these values. This collective approach – although some may view it as illusory – is, in fact, our most potent weapon. Reinforcing its commitment strengthens our collective agency and resolve to respect human rights and fundamental freedoms.

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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