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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

Nuclear Medicine on the forefront of cancer research
2017-07-10

Description: Nuclear Medicine on the forefront of cancer research Tags: Nuclear Medicine, cancer research, Dr Je’nine Horn-Lodewyk’s, tumour detection method, cancer, Department of Nuclear Medicine 

Dr Je’nine Horn-Lodewyk’s tumour detection method
could be the cost-effective breakthrough needed to decrease
the mortality rate in breast cancer patients.
Photo: Anja Aucamp

The field of Nuclear Medicine in South Africa and the rest of the world are expanding rapidly due to the development of hybrid cameras and new radiopharmaceuticals. These developments have a huge impact on the diagnosis and therapy of cancer.

The most advanced of these cameras, Positron emission tomography combined with normal CTs (PETCT), are not yet widely available in South Africa due to the cost of the cameras and the radiopharmaceuticals. A more cost-effective alternative can be of great benefit. To achieve this, the focus should be on developing new radiopharmaceuticals that can be used with the current cost-effective gamma cameras, according to University of the Free State researcher, Dr Je’nine Horn-Lodewyk from the Department of Nuclear Medicine.

Fluorodeoxyglucose (18F-FDG), a radiolabelled glucose analogue, is currently the radiopharmaceutical most commonly used in PET/CT imaging for mainly oncology indications. Although it is considered the gold standard for imaging in several malignancies, it does have certain disadvantages. An 18F-FDG PET/CT diagnostic imaging study can cost between R25 000 and R35 000 for a single patient in the private sector. The 18F-FDG is also more radioactive, which requires much stricter handling and shielding to avoid high radiation dosages to staff and patients.

Successful research potential innovative solution
In the search for the ideal radiopharmaceutical for tumour detection, the South African National Nuclear Energy Corporation (Necsa) developed a local synthesis process for ethylenedicysteine-deoxyglucose (EC-DG). EC-DG is also a glucose analogue similar to FDG. They succeeded in labelling the compound with Technetium-99-metastable-pertechnetate (99mTcO4-), the most common nuclear medicine isotope used for approximately 95% of nuclear medicine procedures, creating 99mTc-EC-DG.

In partnership with Dr Horn-Lodewyk, this compound was successfully used in various animal models and clinical scenarios, resulting in approval by the Medicine Control Council to use it in a human study. Research is also planned in order to investigate diagnostic accuracy in other cancers like lymphoma.  The end result of this research can produce a radiopharmaceutical that is cost effective, does not require the use of costly specialised equipment, has no significant side-effects, no special patient preparation, renders late imaging possible, and has decreased radiation risks.

Dr Horn-Lodewyk is grateful for the support of her mentor, Prof Anton Otto, as well as Dr Gert Engelbrecht, Head of the Department of Nuclear Medicine, Prof Jan Rijn Zeevaart from North-West University’s Preclinical Drug Development Platform and Necsa, and Judith Wagener from Necsa. This innovative research would also not have been possible without the financial assistance of Dr Glen Taylor and Eleanor van der Westhuizen in the Directorate of Research Development.

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