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19 March 2018 Photo Rulanzen Martin
Prof Solomon writes book on human security in Africa
Prof Hendri Kroukamp, Acting Vice-Rector: Academic; Prof Hussein Solomon; and Prof Heidi Hudson, Dean of the Faculty of the Humanities, at the book launch.

An acclaimed academic regarding security issues on the African continent, Prof Hussein Solomon, recently launched the book African Security in the twenty-first Century.

The book, which was launched on 13 March 2018 at the Archive for Contemporary Affairs on the Bloemfontein Campus of the University of the Free State (UFS), took three years to complete and has 11 chapters and 300 pages.

“It has been difficult, some of the chapters did not appear, but will be released as journal articles,” Prof Solomon said.

Focus more on human than state security
“This particular book project had its origins four years ago at the African Studies Association conference, which was held in San Diego,” Prof Solomon said. 

This is where he met Stephen Emmerson, co-author of the book. “We attempted to make the book as comprehensive as possible, covering all the major sources of insecurity on the African continent – from resource conflict to conflicting identities to drug-trafficking and terrorism,” he said.

The approach of this book was to focus on human security, which is the security of ordinary Africans, in contrast to that of the state and/or regime security. 

News Archive

Prof Tredoux turns theories regarding the formation of metals on its head
2013-09-17

 

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

 

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