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22 September 2021
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Story Michelle Nöthling
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Photo Supplied
Annemarie Le Roux.
“I love working with children.” This is one of the first things Annemarie le Roux mentions when asked to describe herself. This love for children propelled Annemarie into the field of education and she graduated in 2006 with a BEd in Foundation Phase at the UFS. Annemarie immediately immersed herself in the Deaf community, enriching the lives of children at the Thiboloha School for the Deaf in Qwaqwa and the De la Bat School for the Deaf in Worcester.
The academic world enticed Annemarie back to the University of the Free State (UFS) and she was appointed as a junior lecturer in the Department of South African Sign Language (SASL) and Deaf Studies in 2013. Going from strength to strength, Annemarie completed her master’s degree in SASL in 2019, and published an
article earlier this year that she co-wrote with Marga Stander. In this article, they found that SASL “has become an increasingly popular language that hearing university students want to learn as a second language” and subsequently explored different teaching methods used for this emerging group of interested students.
Although now firmly established in academia, Annemarie is still committed to the practical application of SASL. “I am closely involved in student and community engagement through the
SIGNALS Sign Language student association that helps empower the Deaf community and South African Sign Language.” She also interprets for the Deaf community whenever she gets an opportunity, as well as for Deaf students in class and meetings.
On the importance of Sign Language and the recognition of the Deaf community in South Africa, Annemarie believes it will open greater opportunities for development. “More people will be able to learn SASL, and it might even become a subject in school for hearing children.”
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