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21 August 2019
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Story Thabo Kessah
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Photo Thabo Kessah
Keafon Jumbam is gearing herself for the institutional Three Minute Thesis competition.
Keafon Jumbam is a PhD candidate whose research on food and foxes has won her the first prize of R8 000 in the recent Faculty of Natural and Agricultural Sciences’ Postgraduate Flash Fact Competition. Her brief in the competition was to
summarise her research in three minutes, using only one static slide.“The competition started at departmental level on both campuses. The idea was that the best student in each department is then selected to go for the faculty-level competition on the Bloemfontein Campus. Summarising the entire research into three minutes is no easy feat, but a great way to gauge how well one has mastered your work,” she said.
Far-reaching research
“Thought-provoking presentations on research, ranging from technology to track academic progress, traditional medicine as alternatives to expensive prescriptions, and suggesting insects as food alternatives to curb hunger in this era of severe droughts and food shortages. The competition was tough, but it highlighted the level of research competitiveness on the Qwaqwa Campus. I hope that more students will join in such opportunities to build themselves up and to showcase our research output as Qwaqwa students,” added Jumbam from the
Department of Zoology and Entomology.
Institutional finals
Her next challenge is the institutional competition to be held on 23 August 2019, which could qualify her for the national competition.
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