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18 April 2019 | Story Valentino Ndaba
Be Safe on road
Be safe on the roads: Prevention is better than a hospital ward or coffin.

Safety starts with you, non-compliance ends you. A traffic spike over the Easter holidays does not justify disobeying road rules. The university is counting on all students, both drivers and pedestrians, to continue prioritising safety on the roads.

Don’t be a statistic, take responsibility
The 2018 Preliminary Easter Road Safety Report issued by the Department of Transport, indicated that most accidents were caused by irresponsibility.  “In 2018, human factor contributed 89,5% to crashes as compared to the 74,3% in 2017. The number of jay-walking pedestrians killed on our roads also increased to 38% as compared to 25,2% in 2017,” said Minister of Transport, Blade Nzimande.

The university implores you to play a role in reducing these numbers in 2019.

On driving and cellphones
According to Arrive Alive, the use of communication devices while driving is prohibited. “No person shall drive a vehicle on a public road while holding a cellular or mobile telephone or any other communication device in one or both hands or with any other part of the body, unless such a device is affixed to the vehicle or is part of the fixture in the vehicle.”

Pedestrian duties
Pedestrians are encouraged to practice caution when using sidewalks and while crossing the road. When walking, face oncoming traffic and pay attention to traffic signs so as not to constitute a source of danger to yourself or to traffic.

Safe speed saves lives
A general speed limit of 60 kilometres per hour shall apply to all public roads within urban areas, 100 kilometres per hour on public roads, and 120 kilometres per hour on freeways. Abide by these speed limits, unless stated otherwise by traffic signs.

More tips on drunken driving, wearing seat belts, and other aspects of road safety are easily available on the Arrive Alive website.

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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