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18 April 2024 | Story Leonie Bolleurs | Photo Stephen Collett and Leonie Bolleurs
Left: Wikus Vorster is the Dean’s Medal winner in the final-year third-year curriculum. He completed his BSc Actuarial Science degree. Pictured with him is the Dean of the Faculty of Natural and Agricultural Sciences, Prof Paul Oberholster. Right: Mienke Botha completed the BScAgric Animal Science programme. She received the Dean’s Medal for the best grades in the final-year fourth-year curriculum.

A total of 1 582 students graduated in the Faculty of Natural and Agricultural Sciences at the April graduation ceremonies of the University of the Free State (UFS). The faculty honoured four students for achieving the best results in respectively the third-year curriculum, the fourth-year curriculum, final-year honours, and final-year master’s.

Dr Snowy Khoza, a seasoned non-executive, senior adviser, acknowledged strategist, and development activist in the infrastructure development space, addressed the graduates in the first two sessions of the day.

She urged graduates to remember that graduation is not just an end, but a new beginning – a launching pad for future endeavours and aspirations. “Whether you choose to pursue further studies, embark on a career in research, industry, or entrepreneurship, or devote yourself to making a difference in your community, know that the world is ripe with possibilities waiting to be explored.”

Dr Khoza sponsored R50 000 to each Dean’s Medal recipient from the first two graduation ceremonies of the day.

Actuarial Science right up my alley

Wikus Vorster, who completed his BSc Actuarial Science degree, received the Dean’s Medal in the final-year third-year curriculum in the Faculty of Natural and Agricultural Sciences. He was also awarded the Senate Medal for achieving the highest weighted average across all undergraduate and postgraduate qualifications in all faculties of the UFS. Vorster, who has always had a love for numbers and programming, says it is truly an honour to see his hard work recognised in this way.

“Actuarial Science always seemed to be right up my alley since it combines all my favourite academic interests,” he says. According to him, every module had something to offer.

His strategy for academic success was to put in an enormous amount of hard work and sacrifice. The support from family and friends also helped him to perform at his best.

Vorster aspires to become the best-qualified actuary he can by continuing to develop his understanding of risk, programming, and statistics.

Give your best at all times

Mienke Botha, who grew up on a farm in an agriculturally driven community, surrounded by truly passionate farmers, completed the BScAgric Animal Science programme. She received the Dean’s Medal for the best grades in the final-year fourth-year curriculum. About receiving this honour, Botha says, “I never really worked that hard just for the recognition; on the contrary, I truly enjoyed it.”

She continues, “I find my Animal Nutrition, Animal Physiology, and Animal Breeding subjects rewarding in my third and fourth year. I love how they all integrate into each other and how they can be applied together in the practical industry. It also helps to fully understand the science and to base farming decisions on this.”

Her approach to success is to give her best at all times. She believes that discipline is one aspect of life that will carry over to all others. Moreover, she states, “I always strived to use the abilities and talents I have received from the Lord to the fullest.”

Having experienced the satisfaction and happiness that work in this field can bring, Botha comments that she would like to quality as a ruminant nutritionist, focusing on the dietary needs and feeding management of animals, such as cattle, sheep, and goats.

The little we know about the small things in life

Rinus Behrens completed his BSc Honours in Food Science and was awarded the Dean’s Medal for achieving the best results in the final-year honours class. He says that with the talents that God gave him, he aimed from the beginning to do only his best.

He believes that if one truly has an interest in the work you are doing, you should be excited to talk about it. “You will not only gain more knowledge; studying will also become easier.” During his studies, the subjects of Food Microbiology and Meat Science specifically stood out for Behrens. “My research on crocodile meat – regarding the microbial and physio-chemical aspects thereof – required me to use the knowledge obtained from those subjects as a whole to fully understand what may have led to the results I obtained. Both of these subjects opened my eyes in terms of how little we really know about the small things in life. Something as small as the smallest bacteria can have such a major influence on our lives. As scary as it seems, it excites me!”

Behrens is of the opinion that Food Science influences everyone, even if you don’t know it. “We all eat food, and getting behind the science of it all is what truly excites me. This is where I feel I can have the greatest impact on many people's lives while enjoying every moment of what I am doing.”

Future steps for him after completing his PhD are to pursue a career in research microbiology, food auditing, or further research based on the microbiology of crocodile meat.

Theory of Architecture – changing the way I see and think about architecture

The Dean’s Medal for the final-year master’s class went to an Architecture student, Arran Wood. It is the role his lecturers played in his success that stood out to him. “I am grateful for the amazing support and encouragement I’ve received over the years from my lecturers, who spent so much of their own effort into teaching me what I know about architecture,” he comments.

Both of his parents are in the building industry; his father worked in construction and design and his mother as a civil engineer. “Even though it was always my decision, growing up I gained a passion to work in these fields and that is why I chose architecture,” he says.

During his studies, it was especially Theory of Architecture that fascinated him. “It changed the way I see and think about architecture and even about life,” he remarks.

Just like the other medal winners, Wood also believes that hard work played a key role in his success. Hard work, late nights, and never giving up was his strategy when studying. 

For the future, he hopes to make a difference and bring meaning to the work he does. “I care deeply about South Africa and the people in it,” he concludes. 

NAS Medalists 2024

Left to right: Rinus Behrens completed his BSc Honours in Food Science and was awarded the Dean’s Medal for achieving the best results in the final-year honours class, while an Architecture student, Arran Wood, received the Dean’s Medal for the final-year master’s class.

News Archive

UFS study on cell development in top international science journal
2008-09-16

A study from the University of the Free State (UFS) on how the change in the packaging of DNA with cell development influenced the expression of genes, will be published in this week’s early edition of the prestigious international, peer-reviewed science journal, the Proceeding of the National Academy of Sciences of the USA (PNAS).

The PNAS journal has an impact factor of 10, which means that studies published in the journal are, on average, referred to by ten other scientific studies in a two year period. The South African Journal of Science, by comparison, has an impact factor of 0.7.

The UFS study, funded by the Wellcome Trust and the National Research Foundation (NRF), looked at how the change in the packaging of DNA with cell development influenced the expression of genes. It is very relevant to research on stem cells, an area of medicine that studies the possible use of undifferentiated cells to replace damaged tissue.

Prof. Hugh Patterton, of the Department of Microbial, Biochemical and Food Biotechnology at the UFS, who led the study, said: "We are extremely proud of this study. It was conceived in South Africa, it was performed in South Africa, the data were analysed in South Africa, and it was published from South Africa."

When a gene is expressed, the information encoded in the gene is used to manufacture a specific protein. In eukaryotes, which include humans, there is approximately 1m of DNA, containing the genes, in every cell. This length of DNA has to fit into a cell nucleus with a diameter of only about 10 micrometer. In order to fit the DNA into such a small volume, eukaryotic cells wrap their DNA onto successive protein balls, termed nucleosomes. Strings of nucleosomes, resembling a bead of pearls, is folded into a helix to form a chromatin fiber. The study from the UFS investigated how the binding of a specific protein, termed a linker histone, that binds to the length of DNA between nucleosomes, influenced the formation of the chromatin fiber and also the activity of genes.

"We found that the linker histone bound to chromatin in yeast, which we use as a model eukaryote, under conditions where virtually all the genes in the organism were inactive. It was widely believed that the binding of the linker histone caused the inactivation of genes. We studied the relationship between the amount of linker histone bound in the vicinity of each gene and the expression of that gene for all the genes in yeast, using genomic techniques. We made the surprising discovery that even through the linker histone preferentially bound to genes under conditions where the genes were shut off, this inactivation of genes was not caused by the binding of the linker histone and folding of the chromatin,” said Prof. Patterton.

He said: “Instead our data strongly suggested that the observed anti-correlation was due to the movement of enzymes along the DNA molecule, involved in processing the information in genes for the eventual manufacture of proteins. This movement of enzymes displaced the linker histones from the DNA. This finding now requires a rethink on aspects of how packaging of DNA influences gene activity."

Prof. Patterton said that his research group, using the Facility for Genomics and Proteomics as well as the Bioinformatics Node at the UFS, was currently busy with follow-up studies to understand how other proteins in nucleosomes affected the activities of genes, as well as with projects to understand how chemicals found in red wine and in green tea extended lifespan. "We are certainly having a marvelous time trying to understand the fundamental mechanisms of life, and the UFS is an exciting place to be if one was interested in studying life at the level of molecules," he said.


Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
18 September 2008
 

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