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26 July 2022
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Story Bulelwa Moikwatlhai
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Photo Supplied
Experiencing the UFS in person for the first time are from the left: Sandor Potjer (VU Amsterdam), Bulelwa Moikwatlhai (UFS OIA), Ricarda Kochems (Bremen University, Germany), Froukje Pronk (VU Amsterdam) and Matome Mokoena (UFS OIA)
As the UFS COVID-19 Regulations and Required Vaccination Policy has been lifted with immediate effect – allowing 100% capacity of both students and staff members and a fully operational campus – the
Office for International Affairs welcomes its first physical exchange cohort after two years. The cohort of students hail from the various international partners of the UFS, namely the
University of Bremen in Germany, the Vrije Universiteit Amsterdam, and Sciences PO Bordeaux in France. The students will be hosted in the UFS faculties of the Humanities, Economic and Management Sciences, and Natural and Agricultural Sciences, respectively.
These students have been paired with
Umoja Buddy Programme ambassadors to help ensure their smooth transition and integration into student life at the UFS. Furthermore, the students received an invitation from the President of the
International Student Association (ISA), Courtney Madziwa, to join their association, thus exposing them to students from other countries to learn about the various cultures.
On 18 July, the Office for International Affairs (OIA) arranged a hybrid orientation programme for the exchange students, including those students who have not yet arrived on the Bloemfontein Campus. The students took part in an icebreaker activity, where they had the opportunity to learn from and teach other participants about their home countries. Dr Cornelius Hagenmeier, Director of the OIA, welcomed the exchange students to the Bloemfontein Campus, and expressed excitement to have physical exchanges again. Furthermore, the guest presenters ranged from student leadership, staff members, and service providers.
The presentations were practical, demonstrating, among others, how to create a password on the institutional website – presented by Mr Molemo Mohapi from UFS ICT. The presentation on how to fully utilise Blackboard was facilitated by Ms Vuthihi Mudau from the UFS CTL division. We take the safety of all our students seriously, so Ms Elise Oberholzer from the UFS Protection Services has given the students some tips on how to safeguard themselves.
Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17
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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