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29 March 2022
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Story Teli Mothabeng
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Philmon Bitso, Student Recruitment Officer, with the top-10 cohort of the class of 2021 Free State Star of Stars.
The Department of Student Recruitment Services at the University of the Free State (UFS) hosted its annual Free State Star of Stars competition at the Amanzi Private Game Reserve during the first week of March. The event saw some of the brightest young minds in the Free State inducted as UFS first-year students into this year’s top-10 cohort for the competition. This marks the first Star of Stars event since the beginning of the COVID-19 pandemic.
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This new cohort consists of a dynamic group of academically gifted students from Quintile 1-3 schools in the Free State who are currently enrolled for different UFS academic programmes, ranging from Medicine, Law, Education, and various Bachelor of Science courses. Many of these students had to overcome insurmountable challenges to perform as well as they did in their Grade 12 academic year and to become part of the top-10 cohort for the class of 2021. Due to the COVID-19 pandemic, the Department of Student Recruitment Services was forced to take a different approach to celebrate these deserving students; consequently, a weekend-long induction camp was the substitute for the annual gala dinner.
Apply for the 2022 Free State Star of Stars competition
The UFS realised the need to establish a platform that recognises and celebrates the diverse and, in most instances, difficult circumstances that disadvantaged schools (Quintile 1-3) are facing. Consequently, the Star of Stars competition was developed and established in 2016. This competition provides disadvantaged Grade 12 learners from all districts in the Free State an opportunity to showcase their excellence, while motivating them to aspire to achieve more.
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