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12 September 2019 | Story Ruan Bruwer | Photo Varsity Sports
Netball
Jana Scholtz, goal defender and playing in her first year as a regular starter, has been a solid performer for the Kovsie netball team in Varsity Netball.

The building blocks are starting to form a solid basis from where Kovsies can launch an attack to defend the Varsity Netball title they won in 2018. This is according to Karin Venter, one of the team’s assistant coaches.

After losing their first encounter to Tuks, they registered wins over the University of Johannesburg, Tshwane University of Technology, and the North-West University. The match against the Maties in Bloemfontein on 23 September 2019 – the last in the group stage, should determine which of the two teams will book a home semi-final along with Tuks.

“Yes, that is the crucial one,” said Venter, the team’s defensive coach. Her counterpart at the Maties is Adéle Niemand, with whom Venter combined as defenders at Kovsies for several matches in the mid-2000s. Apart from the Maties, the women of the University of the Free State still have to face the Madibaz and the University of the Western Cape (both in Pretoria on 15 and 16 September 2019).

“The combinations are starting to form a unit and our confidence is on the increase. Now we are looking for consistency in our performances.”

According to Venter, they were hit hard by goalkeeper Ané Retief’s injury, which kept her out of the first two matches. This meant that they had to start against Tuks with a first-year student, Chanel Vrey.

“It was tough, but I’m impressed with the way in which she, Ancia Pienaar, and Jana Scholtz – who are all youngsters – stepped up.”

Venter is responsible for the analyses and recons to assist players.

“The programme we are using provides us with all the required footage. You can make notes on it and send these clips to players, which means you don’t have to sit next to a player to explain something. We also provide them with notes and sketches of opponents’ playing patterns, which they must work through as part of their preparation.”

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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