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22 October 2020 | Story Leonie Bolleurs | Photo Supplied
Prof Liezel Nel, who received the 2020 Excellence in Learning and Teaching Award in the category Research in Teaching and Learning, says this recognition of her work is undoubtedly an inspiration to continue her research with even more vigour and enthusiasm.

Prof Liezel Nel, Adjunct Professor in the Department of Computer Science and Informatics at the University of the Free State (UFS), was announced as winner in the category Research in Teaching and Learning at the 2020 UFS Excellence in Learning and Teaching Awards, hosted by the Centre for Teaching and Learning in September this year.

Prof Nel, who is passionate about the Computer Science discipline due to its ever-changing nature, says she not only constantly revises the subject material, but also the way in which she presents it to students. “In order to be an effective facilitator, I adjust my teaching and learning strategies based on the needs of my students and their pace and depth of understanding,” she says.

As an adjunct professor, she currently teaches Web Development and Internet Programming modules on both undergraduate and postgraduate level. Prof Nel also supervises master's and PhD projects in the field of Computer Science Education. 

She believes in a research-informed way of teaching that is sensitive to the needs of individual students in a diverse educational context. Prof Nel is constantly investigating innovative ways in which the teaching and learning experiences of Computer Science students can be enhanced. “My teaching philosophy is geared towards the empowerment of my students in order for them to take control of their own learning experiences,” she adds.

Best teaching experience

She is in the position of working with students who are entering higher education for the first time and is of the opinion that especially first-year students need to be exposed to the best possible teaching experience.

“My students and I work together to overcome many of the unique challenges they are experiencing in order to better prepare them on an academic and a personal level for the successful completion of their higher education journey and for a successful career in Computer Science,” she says.

Besides the role that Prof Nel is playing in preparing first-year students, she also participates in the development of postgraduate students. “By involving all my postgraduate students in teaching and learning-related projects, I believe that I am playing a valuable role in shaping a new generation of teaching and learning scholars,” declares Prof Nel.

Continuous excellence

Her work to enhance the learning experiences of her students has received both local and national recognition. Since 2009, she has received numerous awards, including the UFS prestige award for Excellence in e-learning, the UFS prestige award for Excellence in Teaching; and the UFS Vice-Chancellor’s award for Scholarship of Teaching and Learning. Prof Nel also received the National Excellence in Teaching and Learning award from the Higher Education Learning and Teaching Association of Southern Africa and the Council for Higher Education (CHE).

News Archive

Heart-valve studies receive international recognition
2017-07-11

 Description: Heart-valve studies  Tags: Heart-valve studies  

Prof Francis Smit, Head of the Department of
Cardiothoracic Surgery at the UFS, and Manager of the
Robert WM Frater Cardiovascular Research Centre, with
Kyle Davis, Mechanical Engineer at the centre.

Photo: Rulanzen Martin

Three heart-valve studies which have been developed at the Robert WM Frater Cardiovascular Research Centre at the School of Medicine at the University of the Free State (UFS) were recently presented in Monte Carlo at the conference of the prestigious global Heart Valve Society (HVS).

These studies are all headed by Prof Francis Smit, Head of the Department of Cardiothoracic Surgery at the UFS, and Manager of the Robert WM Frater Cardiovascular Research Centre.
Prof Smit says the HVS is a combination of the former heart-valve societies of Europe and the US. “Studies on heart-valve disease, heart-valve-related products and operations, as well as the design and development of new valves were presented. There are both clinical and development divisions.

He says the study in which the hemodynamics of their redesigned mechanical poppet valve was compared to a commercial bi-leaflet mechanical heart valve, was named as the best poster presentation in the experimental valve development and numerical flow dynamics division. The study, which was presented by Kyle Davis, mechanical engineer at the centre, competed against some of the best heart-valve research units in the world.

The redesigned valve, based on the 1960s Cape Town poppet valve, has the potential to provide a low-cost solution for mechanical heart-valve replacement. It is possible to produce the titanium ring with 3-D printers and is, together with the silicon poppet valve, extremely inexpensive compared to current mechanical valve-manufacturing processes.
The advantages of this valve over current mechanical valves is that, due to the effective and laminar flow characteristics, as well as the simple locking mechanisms, there is a reduced chance of valve thrombosis, and the need for anti-clotting drugs is therefore limited.

It was also confirmed that the new valve more than meets the published FDA (Federal Drug Agency) requirements, which determine the minimum standards of valves for human use in the US.

The redesigned valve also has a very low platelet activation impact, which is responsible for platelet thrombosis and leads to valve thrombosis or strokes. This valve is another heart-valve project by the centre, which is also in the process of evaluating a tri-leaflet polyurethane valve developed by them.


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