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23 September 2020 | Story Prof Theodore Petrus | Photo Supplied
Prof Theodore Petrus is Associate Professor of Anthropology at the University of the Free State.

As we as a South African nation prepare to celebrate Heritage Day on 24 September, and as we reflect on our heritage during Heritage Month, what stands out clearly is that this year’s heritage celebrations will be somewhat … different. It will not be like previous celebrations because as a country, we – along with our fellow continental and global citizens – have experienced what can be described as one of the greatest health, social, and economic challenges that we as a species have ever faced. The repercussions and impact of the COVID-19 pandemic will be felt for some time to come. And it is this realisation that may cast a little damper on our celebrations during this #Heritage Month.

But what can our shared heritage as South Africans teach us about who we are as a people, and how can this knowledge help us to adapt to and overcome the long-term challenges wrought not only by the pandemic, but also by the many other challenges facing us? 

Heritage Day is a celebration of our cultural heritage and diversity as a nation. It presents us with an opportunity to reflect on our individual and collective heritage. It is also an opportunity for us to take stock of the cultural and other resources that enable and empower us to take ownership of what we want to be as a nation, as a country, as a people. 
So, in view of the questions raised earlier, here are some ideas on what I think our shared heritage can teach us:

1. The heritage of where we come from

Inasmuch as our past is a painful one – a past that still has lingering effects decades after the transition to a democratic dispensation – it still plays a fundamental role in shaping who we are now, and who we want to become.
Colonialism and apartheid sought to suppress our indigenous cultures and traditions, and had a negative impact on our psyche, self-confidence, and dignity as indigenous and African people. But one positive that came from this, is that if it was not for our shared heritage of colonialism and apartheid, we probably would not have become the nation we needed to become to bring it to an end.  

Instead of destroying symbols of that painful past, we need to shift our perspective to re-interpret those symbols in a new way. The power of cultural symbols lies in their meanings. Symbolic anthropologist Victor Turner spoke about the ‘multivocality of symbols’, meaning that we can ascribe whatever meanings to our cultural symbols we choose. Let us reflect on how we can change the current meanings we ascribe to our cultural symbols that reflect an awareness of how the heritage of where we come from does not keep us trapped in negative and painful meanings of these symbols, but instead inspire us to create new positive meanings.

2. The heritage of where we are now

After 1994, we began the process of creating a new contemporary heritage as a nation struggling to free itself of the burden of a painful past. And while it was difficult, we have made significant strides. Yes, we do still face challenges rooted in the past: institutional and structural violence; race and diversity-related issues; intercultural and intergroup conflicts; crime and violence against men, women, and children; corruption at various levels of governance; and others. We are also faced with ‘newer’ challenges as a country that is part of the globalised world. Poverty, inequality, unemployment, slow economic growth, and ailing infrastructure are all contemporary problems, some of them rooted in the past, others the product of the contemporary context. 

What can we learn from our shared heritage of where we are now that can help us to overcome these contemporary challenges? We need to remind ourselves of what we are capable of as a nation. We have ended an oppressive regime, not once but twice. And, with all of the challenges, problems, and obstacles, we are still here.

3. The heritage of where we are going

This might sound strange, because heritage usually refers to the past and present. Rarely do we speak of heritage in a future-oriented context. However, as a nation, given our past and given our present, where we come from and where we are now determines where we are going. 

As South Africans, we need to ask the question: where do we want to go? Are we heading in that direction? If not, how do we change course so that we do go in the right direction? I have no simple answer. But what I can suggest is that it should start with critical self-reflection, both individually and collectively. We also need to ask ourselves what legacy we want to leave for future generations. Do we want them to still be struggling with the same problems and challenges that we are dealing with right now? Or do we want to leave them a legacy of a nation that stood up to its challenges, took ownership of them, and found a way to overcome them?

A globally devastating pandemic. A painful past. A present wrought with seemingly insurmountable obstacles. As a South African, as a child of the soil, I know that as a nation we can overcome, and we can emerge better and stronger. That is our heritage. The heritage of hope.

 

Opinion article by Prof Theodore Petrus, Department of Anthropology, University of the Free State 

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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