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13 January 2020 | Story Eugene Seegers | Photo Anja Aucamp
New Way to learn a language
Spearheading the digital expansion of the conversational Sesotho course is IDEAS Lab Director, Johann Möller (middle). With him are from the left: Prof Pule Phindane, CUT; Dr Brenton Fredericks, CUT; Bahedile Letlala, UFS Department of African Languages; and Dr Elias Malete, UFS Department of African Languages.

For many years now, the UFS has been offering a one-year course in conversational Sesotho for staff members; this can then be followed up with the one-year course in advanced conversational Sesotho. The conversational Sesotho for students in the Faculty of Education was introduced in 2018 at the UFS.

The Central University of Technology (CUT) needed a conversational course for its first-year students and approached the Department of African Languages for the development of such a course. Living as we do in a multilingual country; this additional language skill opens doors and often hearts as well.


Using instructional design principles

However, the need was identified by both CUT and UFS to present this crucial information in a way that would be more appealing to digital natives as well as to those less familiar with technology. The Department of African Languages on the UFS Bloemfontein Campus, together with relevant departments from the CUT, approached the IDEAS Lab located on the UFS South Campus, since they already have a reputation for being a specialist on broadcasting and repackaging curricular content for digital presentations. The IDEAS Lab provided technical advice and built the multimedia programme, which will help the user to hear and practice phrases in Sesotho, using instructional design principles. The course will be available to both staff and students belonging to the two universities.

Room for growth

Johann Möller, Director of the IDEAS Lab, says this pilot programme will give both institutions the opportunity to test the use of multimedia for language acquisition. He adds, “Language is extremely complex, and we would like to expand this learning aid in the future.” In fact, the original design has room for growth built into it.

To keep things simple for the user and the building team, it was decided to start out with only four potential everyday scenarios where a staff member would like to speak Sesotho: Firstly, how to greet other persons from different genders; secondly, potential scenarios one might encounter in the university environment itself; thirdly, how to deal with situations at a hospital; and finally, how to use one’s language skills at a filling station.

Pronunciation is key

Each scenario contains three to four conversations that the learner can revise, along with images and audio that illustrate the situation and assist with correct pronunciation. The system does not allow the user to progress unless they have listened to the pronunciations of the sample sentences or phrases.

Further reading material and vocabulary lists are also provided, with the result that people who are using the programme can learn at their own pace. The authoring software Articulate Storyline was used to build the individual scenarios and each conversation or lesson within it. The lessons are also not dependent on an internet connection; they can be downloaded onto a flash memory drive and used offline.

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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