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22 September 2022 | Story Kelebogile Olivier | Photo Supplied
Kelebogile Olivier
Kelebogile Olivier, Criminology Lecturer and Secretary of the University of the Free State Women’s Forum

Opinion article by Kelebogile Olivier, Lecturer in the Department of Criminology, and Secretary of the University of the Free State Women’s Forum.
The World Federation of the Deaf declared September to be Deaf Awareness Month in the 1950s. The Deaf Federation of South Africa (DeafSA) and the South African National Deaf Association (SANDA) both promote awareness of the rights of Deaf persons in South Africa. During Deaf Awareness Week, deaf people are highlighted for their accomplishments and challenges (Deaf Awareness 2022) There growing is awareness about hearing loss, deafness, Deaf culture, and sign language. By understanding deafness and the culture of the deaf community, hearing people can better understand deafness. This year's theme is Building Inclusive Communities for all through the promotion of deafness, Sign Language, and Deaf culture. This piece is a personal reflection of my experiences as a parent of a child who has hearing loss.

Access South African Sign Language as a medium of education 

The education of deaf and hard-of-hearing learners is influenced by several factors both negatively and positively. The lack of Deaf role models for deaf learners, the lack of recognition of South African Sign Language (SASL) as a Language of Learning and Teaching (LOLT), and the lack of fluency in SASL among teachers are some of these factors (Magongwa, 2010). 

The education system is considering bi-modal communication. However, the challenge is finding schools where sign language is taught. A school such as Carel du Toit special school in Bloemfontein has a vision to teach spoken language and support children with hearing impairments. Therefore, it does not offer sign language as a language of education.

Baritimea School for blind and hearing-loss children is an alternative school situated outside Bloemfontein which teaches sign language. One thing about this school is that the kids learn sign language and are confident in their communication. It has an excellent teaching and learning vision which it has managed to actively reach. 

The use of sign language in South Africa has advanced greatly. South African Sign Language (SASL) is set to become the 12th official language of the country after government regulations were passed recently. SASL will now be recognised by the Department of Basic Education as a home language and part of the national school curriculum in grades R-12 under the gazetted amendment. This means that deaf learners will now be able to select SASL as a home language in schools. The department has also made amendments on the passing criteria for learners who select SASL as a home language in schools.

As SASL is the first language for most members of the deaf community, these positive changes will significantly impact learners’ ability to excel in school. “This Regulation is called the Amendment Regulations pertaining to the National Curriculum Statement Grades R-12, 2022 and will come into effect on the date of publication in the Government Gazette.” A growing number of South Africans are fluent in the language, and this will ultimately lead to a more inclusive language and a greater appreciation of deaf culture.

Firsthand experience and the rollercoaster of parenting a child with hearing impairment

I found out about my son’s hearing impairment in the middle of 2018, based on pure maternal instinct. I took the decision to have him assessed by a speech therapist believing he had a simple speech problem. In that initial assessment, it was confirmed that the problem was not speech but that he has severe hearing loss. So began the journey to what felt like a million tests and hospital visits. That year alone my son was under anesthesia more than four times.

Initially, he was fitted with hearing aids, which medical aid did not cover. Other costs included an unbudgeted R30 000 the audiologist charged for the devices. He had grommets fitted by an ENT, his hearing was tested while under anesthesia, and his hearing was tested various times until hearing aids were confirmed not to be the best option for him. 

Due to the severity of his hearing loss, towards the end of 2018, a decision was made to fit him with cochlear implants. With all this technology, a weekly speech therapy appointment, constant mapping, and regular audiograms, we were well on the way to a speaking child. Unfortunately, despite implants, the speech progress was delayed.

Personal interaction with the deaf community 

My first experience of deaf communities and the challenges they face daily in simply trying to communicate and navigate a world that is designed not for them began in my undergraduate year module, introduction to sign language. Although some communities, organisations, and institutions of higher education have tried to move toward inclusivity, one does not need to look too deep to notice that the world is not designed for people with any type of impairment, especially in developing nations.

My experience of the deaf community felt like a mere drop in the ocean when 10 years post my undergraduate learning, I could not engage in a conversation with a deaf person. My limited experience and knowledge of deafness and the community were emphasised when my son was diagnosed with severe hearing loss. I realised there is so much to learn and navigating deafness is sometimes a lonely space, until you find even just one person to help you into the deaf society.

We are now considering bi-modal communication. In addition to working on his speech and hearing, we plan to use sign language to support it, especially for educational purposes. Although progress has been made towards inclusivity, we still have a long way to go.

Positive school experiences for deaf or hearing-impaired children

Deaf children should have the same experiences of schooling as every other child in the country. A clean school, a bright and safe playground, and access to sports facilities at the school. This alone would make a difference in how they experience the world as deaf and hearing-impaired children. Rather than the frustration they face daily, they need to have hope that this world will improve. Their safe spaces should at least be exactly that, safe! 

News Archive

Nanotechnology breakthrough at UFS
2010-08-19

 Ph.D students, Chantel Swart and Ntsoaki Leeuw


Scientists at the University of the Free State (UFS) made an important breakthrough in the use of nanotechnology in medical and biological research. The UFS team’s research has been accepted for publication by the internationally accredited Canadian Journal of Microbiology.

The UFS study dissected yeast cells exposed to over-used cooking oil by peeling microscopically thin layers off the yeast cells through the use of nanotechnology.

The yeast cells were enlarged thousands of times to study what was going on inside the cells, whilst at the same time establishing the chemical elements the cells are composed of. This was done by making microscopically small surgical incisions into the cell walls.

This groundbreaking research opens up a host of new uses for nanotechnology, as it was the first study ever in which biological cells were surgically manipulated and at the same time elemental analysis performed through nanotechnology. According to Prof. Lodewyk Kock, head of the Division Lipid Biotechnology at the UFS, the study has far reaching implications for biological and medical research.

The research was the result of collaboration between the Department of Microbial, Biochemical and Food Biotechnology, the Department of Physics (under the leadership of Prof. Hendrik Swart) and the Centre for Microscopy (under the leadership of Prof.Pieter van Wyk).

Two Ph.D. students, Chantel Swart and Ntsoaki Leeuw, overseen by professors Kock and Van Wyk, managed to successfully prepare yeast that was exposed to over-used cooking oil (used for deep frying of food) for this first ever method of nanotechnological research.

According to Prof. Kock, a single yeast cell is approximately 5 micrometres long. “A micrometre is one millionth of a metre – in laymen’s terms, even less than the diameter of a single hair – and completely invisible to the human eye.”

Through the use of nanotechnology, the chemical composition of the surface of the yeast cells could be established by making a surgical incision into the surface. The cells could be peeled off in layers of approximately three (3) nanometres at a time to establish the effect of the oil on the yeast cell’s composition. A nanometre is one thousandth of a micrometre.

Each cell was enlarged by between 40 000 and 50 000 times. This was done by using the Department of Physics’ PHI700 Scanning Auger Nanoprobe linked to a Scanning Electron Microscope and Argon-etching. Under the guidance of Prof. Swart, Mss. Swart en Leeuw could dissect the surfaces of yeast cells exposed to over-used cooking oil. 

The study noted wart like outgrowths - some only a few nanometres in diameter – on the cell surfaces. Research concluded that these outgrowths were caused by the oil. The exposure to the oil also drastically hampered the growth of the yeast cells. (See figure 1)  

Researchers worldwide have warned about the over-usage of cooking oil for deep frying of food, as it can be linked to the cause of diseases like cancer. The over-usage of cooking oil in the preparation of food is therefore strictly regulated by laws worldwide.

The UFS-research doesn’t only show that over-used cooking oil is harmful to micro-organisms like yeast, but also suggests how nanotechnology can be used in biological and medical research on, amongst others, cancer cells.

 

Figure 1. Yeast cells exposed to over-used cooking oil. Wart like protuberances/ outgrowths (WP) is clearly visible on the surfaces of the elongated yeast cells. With the use of nanotechnology, it is possible to peel off the warts – some with a diameter of only a few nanometres – in layers only a few nanometres thick. At the same time, the 3D-structure of the warts as well as its chemical composition can be established.  

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt@ufs.ac.za  
18 August 2010
 

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