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RAG has a new
name and format:
ACT—
Active, Civic, Teaching.
The University of the Free State (UFS) is ready to kick off the new year with a bang. Get ready to celebrate the start of university with a cause. RAG, as you know it, has a new name and format: ACT—Active, Civic, Teaching.
You get further if you pull in the same direction, rather than various good-intentioned movements on different routes. In a collective effort, four exciting programmes will take flight, which are listed below:
- Schools project for first-year students: mentored by senior students, groups of first-year students will be assigned to, and participate in local school projects. Students will learn to solve problems and work together in small groups as they collaborate on a specific community project involving primary or secondary schools in the Mangaung region.
- Community gardens: This project will help individual student communities to begin and maintain their own vegetable gardens in order to address food insecurity within their own environment.
- Eco-vehicle project for senior students: The aim of the eco-vehicle project is to create an interdisciplinary experience. Undergraduate senior students from a Student Life College (SLC) can work together to build an eco-vehicle from waste material. The track day, along with creative pit stops, will take place on 16 February 2018, preceding the Community celebration of 17 February 2018.
- Community celebration: To foster good relationships between the UFS and the community, we aim to host an annual celebration that will be open to the broader Mangaung community. The celebrations will kick off on the morning of 17 February 2018 with a business relay and a showcase of the eco-vehicles. The festive day will conclude with an evening music concert.
Keep checking the UFS website for updates about more ACT activities during the month of February.
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