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25 February 2019 | Story Ruan Bruwer
Tharina van der Walt
The hammer thrower Tharina van der Walt is one of several first-class athletes among the first-year students at Kovsies this year. She is the South African U18 champ and record-holder in 2018.

Several top athletes, some of whom were the very best in the country in their respective events at school, have joined Kovsies as first-year students. They already had their first taste of glory as Kovsies when they recently won their events at the first-year meeting.
 
Among these first-years are Jannes Schlebusch (javelin thrower), Joviale Mbisha (sprinter), Colette Uys (discus/shot-put), and Tharina van der Walt (hammer thrower), who have all represented South Africa in the past two years.
 
Schlebusch won the silver medal at the World U18 championships in 2017, but was injured last year. Great things were expected for 2019, but during the first-year meeting he injured his ankle to such an extent that he will have to undergo an operation that would put him on the sideline for the rest of the season.
 
Van der Walt was the South African schools champ in the hammer throw for girls U19 in 2018, when she managed to set up a new school record of 57,83 m. She was ranked fourth at the World U18 champs in 2017. At the same meeting, Mbisha ended 14th in the 100 m.
 
Uys, who participated in the CAA Southern Region Youth and Junior Championships last year, achieved a second place in the discus at the 2018 National Secondary Schools Championships for girls U19. Other first-years who took part in the SA’s last year, are Vicky Oelofse (1 500 m) and Michael Skosana (long jump).
 
They will strengthen Kovsie Athletics, which already boasts a large group of athletes with international experience. Of the 16 athletes who participated internationally last year, only Kesa Molotsane and Lara Orrock will not be in action for the students again.
 
■ Imperium Residence won the men’s division and Arista/Amelia were the ladies’ winners.
 

News Archive

Champagne and cancer have more in common than you might think
2013-05-08

 

Photo: Supplied
08 May 2013

No, a glass of champagne will not cure cancer....

…But they have more in common than you might think.

Researchers from the Departments of Microbial Biochemical and Food Biotechnology, Physics and the Centre for Microscopy at the University of the Free State in South Africa were recently exploring the properties of yeast cells in wine and food to find out more of how yeast was able to manufacture the gas that caused bread to rise, champagne to fizz and traditional beer to foam. And the discovery they made is a breakthrough that may have enormous implications for the treatment of diseases in humans.

The team discovered that they could slice open cells with argon gas particles, and look inside. They were surprised to find a maze of tiny passages like gas chambers that allowed each cell to ‘breathe.’ It is this tiny set of ‘lungs’ that puts the bubbles in your bubbly and the bounce in your bread.

But it was the technique that the researchers used to open up the cells that caught the attention of the scientists at the Mayo Clinic (Tumor Angiogenesis and Vascular Biology Research Centre) in the US.

Using this technology, they ultimately aim to peer inside cells taken from a cancer patient to see how treatment was progressing. In this way they would be able to assist the Mayo team to target treatments more effectively, reduce dosages in order to make treatment gentler on the patient, and have an accurate view of how the cancer was being eliminated.

“Yes, we are working with the Mayo Clinic,” said Profes Lodewyk Kock from the Microbial, Biochemical and Food Biotechnology Department at the UFS.

“This technique we developed has enormous potential for cell research, whether it is for cancer treatment or any other investigation into the working of cells. Through nanotechnology, and our own invention called Auger-architectomics, we are able to see where no-one has been able to see before.”

The team of Prof Kock including Dr Chantel Swart, Kumisho Dithebe, Prof Hendrik Swart (Physics, UFS) and Prof Pieter van Wyk (Centre for Microscopy, UFS) unlocked the ‘missing link’ that explains the existence of bubbles inside yeasts, and incidentally have created a possible technique for tracking drug and chemotherapy treatment in human cells.

Their work has been published recently in FEMS Yeast Research, the leading international journal on yeast research. In addition, their discovery has been selected for display on the cover page of all 2013 issues of this journal.

One can most certainly raise a glass of champagne to celebrate that!

There are links for video lectures on the technique used and findings on the Internet at:

1. http://vimeo.com/63643628 (Comic version for school kids)

2. http://vimeo.com/61521401 (Detailed version for fellow scientists)

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