Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
28 October 2020 | Story Leonie Bolleurs | Photo Supplied
Prof Edilegnaw Wale Zegeye, who has joined the UFS Department of Agricultural Economics, believes university education is not just a requirement for learners to receive a certificate; it is a means to change their character, capacity, and reasoning.

Edilegnaw Wale Zegeye joined the Department of Agricultural Economics at the University of the Free State (UFS) as Professor of Agricultural Development Economics and Policy on 1 October 2020.

True to his belief that life is like riding a bicycle – to keep your balance, you must keep moving (Albert Einstein) – Prof Zegeye is not planning to wait for life to happen. He says that he is looking forward to engaging with his colleagues in the department regarding new challenges in the areas of teaching, research, and community engagement.

Teaching and learning

Prof Zegeye believes COVID-19 has made it necessary to come up with new ways and means of realising effective teaching and learning. He is convinced that even though online teaching has suddenly become the norm, many universities, including the UFS, will in future have to adopt some form of a hybrid, merging online with contact classes. 

“Given the uncharted territories we have to navigate, I foresee operational and content-related challenges in this area,” he says. 

These challenges, he believes, will require disrupting the status quo courageously, without neglecting the implications for teaching and learning outcomes.

Prof Zegeye is of the opinion that university education is not just a requirement for learners to receive a certificate. “It is a means to change their character, capacity, and reasoning. It is not about learning facts but enabling learners to think critically.”

His goal for his students is to enable them to master the subject matter content, not just memorise lecture notes to pass examinations. “Students should not expect everything from us, as teaching and learning is a two-way process. It is not a transfer of knowledge from a lecturer to students,” he says.

According to Prof Zegeye, success in teaching and learning is the outcome of the collective engagement of the lecturer, students, and the subject matter. He believes that was why Benjamin Franklin once said: “Tell me and I forget. Teach me and I remember. Involve me and I learn.”

Research

“In relation to research, the biggest challenge I anticipate is in terms of linking evidence-based knowledge with policy, implementation, and impact on the ground.”

He says the biggest challenge was to ensure that the knowledge generated is taken up by the relevant organisations and authorities in order to address the development-policy problem being examined. “This would, among other things, call for fixing the knowledge-action gap, addressing conflicts of interest, and engaging all the relevant stakeholders along, what I would call, the Research-Knowledge-Policy-Impact Nexus,” says Prof Zegeye. 

Prof Zegeye has more than twenty years of experience with higher education institutions, including the positions of Senior Lecturer, Associate Professor, Professor, and Honorary Professor (current appointment) in Agricultural Economics at the University of KwaZulu-Natal (UKZN). 

Although he spent several years at UKZN, he started his academic career at Alemaya University in Ethiopia. It was also at this university that he received a BSc in Agricultural Economics. He continued with his studies and obtained a master’s degree in Agricultural Development Economics from Wageningen University (the Netherlands), and later a doctoral degree in Agricultural and Natural Resources Economics from the University of Bonn. He obtained all degrees with distinction. 

Prof Zegeye has also gained valuable experience from working as an economist on the Genetic Resources Policy Initiative (GRPI) project of Bioversity International in Kenya. He has also been a consultant to, among others, the International Food Policy Research Institute and the International Livestock Research Institute. 

“Building on my experiences, I strongly believe that there is always room for improvement in whatever we do. If we all agree with that philosophy, all of us have a unique contribution to make to achieve excellence in what we do. There is a need to remind ourselves that excellence is not a destination; it is a journey that all of us need to take as a collective responsibility,” states Prof Zegeye. 

Published articles

To date, he has published more than 80 papers on water use in smallholder agriculture, agrobiodiversity conservation and technology adoption on smallholder farms, agricultural development policy, and impact assessment of development projects/programmes/policies. Prof Zegeye is also associate editor of the International Journal of Climate Change Strategies and Management and serves as a reviewer for various internationally accredited journals.

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
 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept