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10 December 2019 | Story Ruan Bruwer | Photo Supplied
Tennis
The members of the Kovsie tennis team are, from the left, front: Danique Reynders, Reze Opperman, Daniel de Villiers, Ester de Kock, Lienke de Kock, Anandhi Botha, and Janine de Kock (team manager); back: Marnus Kleinhans (coach), Heinrich Willemse, Emke Kruger, Arne Nel, Ryk Kleinhans, Handre Hoffman, and Ruben Kruger.

The country’s number one student team and South Africa’s second-best club. This is the bragging rights earned by the University of the Free State’s (UFS) tennis team after winning the 2019 University Sport South Africa (USSA) Tennis Championship. 

The Kovsie team claimed their ninth consecutive USSA title on Friday 6 December in Stellenbosch, winning all their matches. The team comprised both men and women – a combination which has been in place since 2010. Since 2010, there has been only one name on the USSA trophy, with the Kovsie team winning from 2010 to 2015 and again from 2017 to 2019. The competition was not hosted in 2016.   

In the 2019 USSA final against Maties, Kovsies was declared the winner, with the score 7-1 after completing seven singles matches and one doubles. A match consisted of four men’s singles, four women’s singles, two men’s doubles, two women’s doubles, and two mixed doubles. 

Arne Nel, Ruben Kruger, Handre Hoffman, Heinrich Willemse, Ester de Kock, and Reze Opperman all won their singles in straight sets. Kruger and Willemse combined for a win in the only doubles match.

On their road to victory, the team had wins over the North-West University (Mafikeng Campus), the University of Cape Town, Stellenbosch University, and the University of Pretoria. The victory over the University of Pretoria in the semi-final was revenge for the Sun City University Championship in March, where they denied Kovsies a fourth consecutive crown in that competition.

Another feather in the cap for Kovsie tennis was that two team members, Willemse and Kruger, along with two management members – Marnus Kleinhans and Janine de Kock, respectively UFS tennis coach and team manager – were chosen for the South African team to the World Student Games in July. 

 



News Archive

Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

Prof Marian Tredoux
17 September 2013

The latest research conducted by Prof Marian Tredoux of the Department of Geology, in collaboration with her research assistant Bianca Kennedy and their colleagues in Germany, placed established theories regarding how minerals of the platinum-group of elements are formed, under close scrutiny.

The article on this research of which Prof Tredoux is a co-author – ‘Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts’ – was published in Nature Communications on 6 September 2013. It is an online journal for research of the highest quality in the fields of biological, physical and chemical sciences.

This study found that atoms of platinum and arsenic create nanoclusters, long before the mineral sperrylite can crystallise. Thus, the platinum does not occur as a primary sulphur compound. The research was conducted at the Steinmann Institute of the University of Bonn, Germany, as well as here in Bloemfontein.

Monetary support from Inkaba yeAfrica – a German-South African multidisciplinary and intercultural Earth Science collaborative of the National Research Foundation (NRF) – made this research possible. Studies are now also being conducted on other metals in the precious metal group, specifically palladium, rhodium and ruthenium.

The discovery of the nanoclusters and the combination with arsenic can have far-reaching consequences for the platinum mine industry, if it can be utilised to recover a greater amount of platinum ore and therefore less wastage ending up in mine dumps. This will signify optimal mining of a scarce and valuable metal, one of South Africa’s most important export products.

For Prof Tredoux, the research results also prove thoughts she already had some twenty years ago around the forming of platinum minerals. “Researchers laughed in my face, but the evidence had to wait for the development of technology to prove it.” Young researchers were very excited at recent congresses about the findings, since the new models can bring new insights.

“Chemistry researchers have been talking about platinum element clusters in watery environments for quite a while, but it was thought that these would not appear in magmas (molten rock) due to the high temperatures (>1 000 degrees celsius).”

Prof Tredoux has already delivered lectures at congresses in Scotland, Hungary, Sweden and Italy on this research.

Read the article at: http://www.nature.com/ncomms/2013/130906/ncomms3405/full/ncomms3405.html

 

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