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19 November 2018 | Story Charlene Stanley | Photo Charlene Stanley
On Social Media, Racism, and Cannabis
Prof John Mubangizi, Dean of the Faculty of Law, encouraged delegates at the Fifth Annual International Mercantile Conference to share ideas on best international practice in their various fields.

“Don’t say anything online that you wouldn’t want plastered on a billboard with your face on it.”

This famous quote by international tech expert Erin Bury should be a guiding light when it comes to online habits in the workplace, according to Francois Cilliers, UFS Lecturer in Mercantile Law.

In his presentation Could Social Media be the Gateway to Employment Discrimination? he warned that employees have a responsibility not to bring their employers in disrepute through their comments on social media.

“Posts, updates, tweets, and comments are considered to be publications and can therefore never be seen as privileged information,” he explained.

Responsibility on employees and employers alike

He pointed out that employers also had a responsibility regarding the way in which they use the information about prospective employees obtained via social media.

“Nowadays, approximately 75% of companies hire through social media. In the US, recruiting companies spend hours researching candidates, making full use of what they can find on social media. It was found that 50–80% of employers frowned upon posts and pictures featuring drug and alcohol abuse, profanity, and bad grammar.”

He warned that employers needed to tread lightly, as a decision not to employ someone as a result of information on the prospective employee’s political views and sexual orientation could constitute unfair discrimination as set out in the Employment Equity Act.
   
“An employer who wishes to use a screening process (utilising social media) has to prove that the information and the process is objectively necessary and can be justified with reference to the inherent requirements of the job,” he explained.

“As technology and electronic systems advance, so too should the applicable labour laws.”

Cilliers’ presentation formed part of the Fifth Annual International Mercantile Law Conference recently hosted by the Faculty of Law on the Bloemfontein Campus.

Incorporating new technology in teaching and research

“This conference is an opportunity to share ideas on best practice in what is perceived as a ‘difficult’ field within Law,” said Prof John Mubangizi, Dean of the Faculty of Law, as he opened the proceedings. Topics in the discussion sessions ranged from Racism in the workplace and The underrepresentation of females in the judiciary, to Decriminalisation of cannabis: A recipe for healthy employer-employee relations?

“Conferences such as these help us to take advantage of the newest developments in technology to advance our teaching and research,” said Prof Mubangizi.

“To quote Einstein: ‘We can’t solve problems by using the same kind of thinking we used when we created them.’”

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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