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30 December 2019 | Story Thabo Kessah | Photo Rian Horn
UFS Qwaqwa Campus
Hundreds of international botanists will be attending the 46th SAAB Annual Conference on the Qwaqwa Campus.

The University of the Free State Qwaqwa Campus is gearing up to host the 46th Annual Conference of the South African Association of Botanists from 7 to 10 January 2020. Talking about the choice of venue, Chairperson of the Local Organising Committee, Dr Sandy-Lynn Steenhuisen, said the unique setting in the shadow of the Maloti-Drakensberg Mountains highlights the Qwaqwa Campus as a fantastic base for interdisciplinary montane studies. “This is the home of the Afromontane Research Unit (ARU), and it will also give the delegates an opportunity to explore a treasure trove of botanical diversity on a post-conference tour to the top of the Amphitheatre in the Northern Drakensberg,” she said.

International delegates

“The conference will be attended by approximately 250 delegates representing at least 10 countries.  We are very excited to host two international and two national plenaries, namely Prof Peter Linder (University of Zürich), Prof Felipe Amorim (São Paulo State University – UNESP), Prof Annah Moteetee (University of Johannesburg), and our Young Botanist award winner from SAAB 2019, Ryan Rattray from GeneLethu Laboratories.”

SAAB 2020 is open to all researchers, industry partners, and citizen scientists from any botanical field. “The theme will embrace Qwaqwa’s cultural heritage by using the Sesotho phrase ‘Dimela ke bophelo’, which translates to ‘Plants are life’. This theme emphasises the dependence of all earthly life on plants. Delegates are offered the opportunity to book residence accommodation adjacent to the conference venue, and our conference organisers, XL Millennium, are eager to help with registration and any travel arrangements,” she added.

Botanists to be awarded

The conference will also be honouring botanists for their lifetime contributions to the field of plant sciences with the awarding of gold and silver medals, and the best doctoral thesis from the previous year with a bronze medal. These will be awarded during the gala dinner at the end of the conference.

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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