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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

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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