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04 July 2022 | Story Dr Nitha Ramnath
Leanne Manas and Prof Francis Petersen

You are invited to join multiple award-winning broadcast anchor, Leanne Manas, for a conversation with Prof Francis Petersen, Rector and Vice-Chancellor of the University of the Free State (UFS). Prof Petersen will share insights about his term in office and updates on developments at the UFS.  

Date: Friday, 22 July 2022 
Time:
09:00-11:00 
Venue: Odeion Auditorium, Bloemfontein Campus  

RSVP on or before 20 July to Alicia Pienaar at PienaarAN1@ufs.ac.za  

Refreshments will be served.

(The event is open to the staff and students of the UFS)

Leanne Manas

Leanne Manas is a multiple award-winning broadcast anchor, MC, motivational speaker, businesswoman, UNHCR Goodwill Ambassador, and a renowned leader on the South African media circuit. From Oprah Winfrey to Nelson Mandela, Leanne has interviewed an impressive range of public figures, heads of state, thought leaders, and local and international celebrities. She has also been at the forefront of bringing South Africans some of the biggest news stories over the past two decades. 

She is instantly recognisable as the face of morning television – as anchor of Morning Live, a hard-hitting news broadcast that she has been hosting since 2004. She has been the face of the vast majority of breaking news events in an ever-changing South Africa, most notably the death of Nelson Mandela, the dramatic resignation of Jacob Zuma as RSA President, and the death of the Mother of the Nation, Winnie Madikizela Mandela. She has also anchored four general elections, three provincial elections, and four presidential inaugurations. 

Her career has crossed international borders, broadcasting in the United Kingdom, France, the UAE, Mauritius, Ghana, Kenya, Gabon, Switzerland, the Netherlands, and the United States of America. Broadcasting every day throughout a global pandemic has been the latest event that she has been part of. The total shift of how media is consumed has been a fascinating part of her journey. Leanne has been quoted as saying, “Being able to witness and tell the story of our ever-changing lives is my greatest honour.” 


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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