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09 January 2019 | Story Thabo Kessah | Photo Thabo Kessah
Ntebohiseng Sekhele Read More
Ntebohiseng Sekhele hopes her PhD study will address conservation conflicts that exist between communities and protected areas.

The University of the Free State’s Afromontane Research Unit (ARU) based on the Qwaqwa Campus has recently concluded the process of recruiting candidates for the University Capacity Development Programme (UCDP). Through this programme, two historically disadvantaged South African universities; Universities of the Free State (Qwaqwa Campus) and Venda (UNIVEN) and three universities in the United States will be collaborating on a number of PhD research projects.

“The programme is funded through the US-SA Higher Education Network and will give candidates and their supervisors the opportunity to regularly travel to the USA and spend time at participating US universities where their co-promoters will be based and allow them to collaborate with identified suitable academics based at those institutions,” said Prof Geofrey Mukwada, Associate Professor in Geography and the coordinator of the project.

One of the young academics selected for this is Ntebohiseng Sekhele from the Geography Department. She will be doing her research in collaboration with the Colorado State University.

“I am delighted to be part of this programme and it still feels like a dream. I feel honored to be selected to participate in such a prestigious programme. To be chosen amongst other applicants means the coordinators believe in my potential, and I look forward to working towards my full potential,” said Sekhele, who describes herself as ‘a simple and ambitious village girl from Monontsha in Qwaqwa.’ 

Sekhele’s proposed PhD study will focus on determining strategies and impacts of conservation practices by the local communities. “It will address conservation conflicts that exist between communities and protected areas; different interpretations of sustainability (including indigenous knowledge) and offer recommendations of harmonising the conservation practices with the sustainability of conservation areas. There is a great need to develop management strategies that will simultaneously satisfy conservation and human needs. She will be graduating with an MSc (Environmental Geography) degree in 2019.

Other US universities involved in the UCDP are Appalachian State University (ASU) and University of Montana (UoM).

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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