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28 January 2022 | Story Prof Sethulego Matebesi | Photo Sonia Small (Kaleidoscope Studios)
Prof Sethulego Matebesi
Prof Sethulego Matebesi.

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


In Teams of Rivals, author Doris Goodwin notes how former American president Abraham Lincoln created value by surrounding himself with people who have the capacity and the tenacity to challenge him. Despite many of the challenges he faced throughout his presidency, he managed to build a common cause with his cabinet to foster the interests of Americans. In a completely different text, Crisis of Conscience: Whistleblowing in an Age of Fraud, Tom Mueller laments how people fail to act out of apathy, complicity, or fear. 


These two distinct texts raise the question of how leadership should react to criticism and the requisite degree of freedom of speech that public representatives should have. 


Similarly, the back-and-forth saga between Tourism Minister Lindiwe Sisulu and President Cyril Ramaphosa over whether she apologised for her opinion piece that criticised black judges, effectively drills home a longstanding historical lesson. This lesson is that political astuteness is a phenomenon as old as the history of politics itself.

Although the astuteness shown by Sisulu against critics from her political party may be puzzling, her public exchanges that a statement by President Cyril Ramaphosa was a ‘misrepresentation’ of their meeting are more puzzling. 
But why is this puzzling? What are we to do about what some call a show of unprecedented defiance and others assertiveness? We also need to ask whether Sisulu’s stance can be adequately explained by those who label her as being arrogant and who deserve to be fired by President Ramaphosa.

A political travesty to apologise on behalf of Sisulu

Public apologies are a common occurrence globally. They often come by way of assuming guilt, expressing remorse, and admitting responsibility. Thus, proper apology etiquette requires the ‘wrongdoer’ to deliver the apology. However, this was not the case with Minister Sisulu.

Sisulu acted in a very public way with her opinion piece and her response to the ‘apology in her name’ released by the presidency. Certainly, with her experience as a public figure, she was aware of the implications of her actions.

Furthermore, she was consistent with her narrative against criticism directed towards her. Yet, we do not know why the presidency saw the need to apologise on behalf of Sisulu. Perhaps it had unreasonable expectations that Sisulu would publicly accept what she disagreed with privately.

Notwithstanding the sincerity of the presidency in dealing with this matter, supporters of President Ramaphosa will, on the one hand, be disillusioned by this own goal. At the same time, those who support Minister Sisulu may be encouraged by her steadfast refusal to accept a coerced apology used as a shaming mechanism. She inadvertently represents a dynamic articulation of an alternative repertoire of contention within the ANC.

Lately, we have witnessed a surge of nationalism globally during the COVID-19 pandemic. The Economist referred to the narrative battle between China and the United States over the pandemic as a ‘new scold war’, threatening to tear the world apart. But, as this Sino-US relationship reminds us, what is at stake is less the tit-for-tat scold war between Sisulu and Ramaphosa that threatens to spiral out of control, than the subdued attempts to attain constituent support within the ANC.

Sisulu herself has never publicly indicated her availability to contest the presidency of the ANC at its next elective conference. By any measure, if she does have such aspirations, stepping forward and engaging politically is one thing, but open defiance of authority is another. Since there are no permanently privileged constituencies in political malaise created by regeneration projects such as the organisational renewal drive of the ANC, the struggle to articulate and establish the interests of those who are aggrieved within the party is an ongoing process.

But where does this leave President Ramaphosa?

Many commentators have noted that his long game is no longer effective. However, President Ramaphosa wants to upend the notion that robust debates within the structures of the ANC are not tolerated. He is wary of the propensity of ANC structures to support those who are victimised. And while the scold war is in full swing, others will join in trying to win the hearts and minds of ANC members.

Meanwhile, when failure to act decisively in the face of predictable situations facing the country, particularly during a crisis; we can then no longer talk about protecting the interests of South Africans.

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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