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22 September 2021 | Story Michelle Nöthling | Photo Supplied
Lerato Sheila Thamahane.

Lerato Thamahane may be able to speak and understand all nine of South Africa’s official African languages, but it is a tenth language she is devoting her life to: South African Sign Language (SASL).

With nearly ten years’ experience as a SASL interpreter in several settings – ranging from the medical and mental-health fields to that of conferences and Deafblind interpreting – Lerato is living her life’s purpose. “I regard myself as a member of the Deaf community and a servant at the same time.”

Lerato lives by the principle that the more perspectives she gains on the world, the better service as an interpreter she can provide. This is also part of the reason why Lerato decided to take on the role of student again to study BA Language Practice to provide her with an even broader perspective on the field. 

But why does Lerato feel so strongly about SASL? It is only through Sign Language, Lerato explains, that one can bridge the divide between the world of the hearing and that of the Deaf. “SASL is the only way for the minority Deaf group to receive and transfer information,” Lerato emphasises. “Deaf people cannot communicate in any other way.” Now, consider for a moment the plight of a Deaf child in South Africa. To receive education in SASL, most Deaf children have to move far away from home at a very young age in order to attend a school for the Deaf. For many years, schools for the Deaf did not include other languages as subjects, which prevented Deaf school-leavers from entering higher education. Although this situation has largely changed, Deaf students are still fighting an uphill battle when entering higher education institutions where prejudice and ignorance still persist. This is where the work of the Centre for Universal Access and Disability Support (CUADS) and the Department of South African Sign Language (SASL) and Deaf Studies makes such a crucial difference.

“I firmly believe,” Lerato says, “that only Sign Language can open opportunities for all groups of the Deaf community – from Deaf children to adults, and from the uneducated to the most educated Deaf people.” It is for this reason, Lerato argues, that our constitution needs to recognise SASL in order to give Deaf people full and equal access to information, to education, and ultimately, to all the opportunities South Africa has to offer.


News Archive

Dr Charlotte Boucher and Lindi Heyns examine possible anti-microbial activity in the skin of Western olive toad species
2014-12-22

 

Researchers Lindi Heyns and Dr Charlotte Boucher are working together on an interdisciplinary project between the Departments of Zoology and Entomology and Veterinary Biotechnology at the University of the Free State (UFS). The focus of their research is on the preliminary biochemical description of skin secretions in some South African toads.

The project forms part of an Honours study executed by Dwayne Pike under Heyns’ supervision. He is co-supervised by Dr Boucher who is assisting with the biochemical and microbiological assays.

Dr Boucher said, “Amphibians are characterised by the presence of cutaneous glands spread over the skin. There are two types of glands, namely mucous and granular (poison), located on the inner surface of the epidermis. Mucous glands are widely dispersed over the skin, while granular glands can be grouped and enlarged in specific regions. Mucous glands are generally associated with maintenance of humidity and cutaneous respiration, whereas granular glands function in chemical defence against predators and/or microbial infection. Studies indicate that the compounds produced by the granular glands belong to numerous chemical classes with diverse pharmacological activities.”

The products secreted by granular glands are rich in low molecular weight constituents of varied molecular types, including proteins, peptides and toxins. These secretions make the toad foul-tasting to predators and even toxic to other frog species. In addition, amphibians offer an attractive source of novel antimicrobials. Studies indicate that as a response to inhabiting microorganism-rich environments they synthesise and secrete a diverse array of antimicrobial peptides (AMPs) as an innate form of defence. Extensive research by various other research groups has been carried out on antimicrobial peptides of the genus Rana; however, hardly any studies have investigated the antimicrobial activity of African frog species.

The focus of this preliminary project is to determine the protein composition of the glandular secretions of the Western olive toad (Amietophrynus poweri), using biochemical tests, such as SDS-PAGE also known as protein gel electrophoresis combined with mass-spectrometry used to identify unknown peptides and proteins. This will give us an overview of the composition of the glandular secretions. Furthermore, we are also looking at microbiological tests, which include assays that test for possible anti-microbial activity against various bacterial and fungal species.

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