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22 September 2021 | Story Michelle Nöthling | Photo Supplied
Emily Matabane.

“I love teaching hearing people Sign Language,” Emily immediately mentions when asked about herself, “so that they can communicate with Deaf people and work with them.” Part of her passion, though, was borne from personal hardship. Emily had a difficult experience when she entered the work environment in 2000, since she was the only Deaf person among an all-hearing staff. Can one even begin to imagine the frustration and isolation she must have experienced? It is no wonder, then, that her vision is for Deaf people to have equal access to information, and for the hearing and Deaf to be able to communicate with each other more freely. And the latter she is pursuing with all her energy.

“When I started working as a Teaching Assistant in the UFS Department of South African Sign Language (SASL) and Deaf Studies,” Emily recalls, “few students were interested in studying Sign Language, because they were not aware of Deaf people and Sign Language.” This has started to change, though, as Emily is noticing a drastic increase in the number of UFS students enrolling for SASL. “I am now familiar with a lot of hearing student who have done Sign Language at our university, and they are very friendly when I meet them. Also, because they are able to greet me in Sign Language!” It is important to note that the department teaches SASL modules to both Deaf and hearing students (and staff) who want to learn the language – which is now also available as an online option.

As a second-year student studying BEd, Emily has formed a close relationship with CUADS (Centre for Universal Access and Disability Support) at the UFS. “CUADS is doing a great job in assisting students with disabilities and catering for their needs. They assist students to have access to education on the same level as other students without disabilities.”

Sign Language is of vital importance to the Deaf community, since it is the language of accessibility for Deaf people. “We are proud and acknowledge Sign Language as a medium of communication,” says Emily. “It allows us to express ourselves, and to teach and transfer our Deaf culture from one generation to the other.”

Ultimately, Emily is hopeful that Sign Language will become embraced, celebrated, and recognised as equal to the other official languages in South Africa.

News Archive

Discovery in Scorpius constellation may signify clean energy for Earth
2017-01-23

 Description: Discovery in Scorpius constellation may signify clean energy for Earth Tags: Discovery in Scorpius constellation may signify clean energy for Earth

Earlier this year, a group of international astronomers
announced the discovery of an exotic binary star system,
AR Scorpii. The system is in the Scorpius constellation.
Photos: Supplied

See article on Nature’s website 

In future, stargazers and astronomers will look at the Scorpius constellation near the Milky Way with new eyes. Earlier this year, a group of international astronomers announced the discovery of an exotic binary star system, AR Scorpii. The system is in the Scorpius constellation.

Prof Pieter Meintjes, researcher in the Department of Physics at the University of the Free State (UFS), worked with four colleagues on what he describes as a “wonderful discovery”. This sensational discovery, which could lead to the production of cleaner energy on Earth, will be published in the research journal, Nature, early in 2017.

Model developed to interpret new set of measurements
The exotic binary star which was discovered consists of a red dwarf and a white dwarf revolving around each other every 3,5 hours. The binary system showed very prominent pulsations of 117 and 118 seconds respectively. The pulsations can be explained by a bundle radiation produced by the white dwarf star.

“These new observations have shown that the radiation is strongly polarised, a sign that we are dealing with synchrotron radiation here. Synchrotron radiation is produced by electrons accelerated to extremely high energy levels in the magnetic field of the white dwarf star,” says Prof Meintjes.

He developed a theoretical model to interpret a new set of measurements that was taken by the 1,9 m telescope and the 10 m SALT telescope at the South African Astronomical Observatory (SAA0).

Totally unique phenomenon could contribute to energy production on Earth
“I further indicated that the interaction between the magnetic fields of the white dwarf star and the red dwarf star induces secondary processes that specifically describe the behaviour of the radiation in the radio band and infrared band accurately. AR Sco is the first white-red dwarf binary system of which all the pulsated radiation could be explained by the synchrotron process, which is totally unique,” says Prof Meintjes.

According to Prof Meintjes, the value of the model lies in the fact that the processes which produce the radiation in AR Sco, can also be applied to produce energy on Earth.

 

Plasma reactors are based on roughly the same processes which apply in AR Sco, and with refining, it could be utilised to generate electricity in future. This will be much cleaner than nuclear energy.

 

The model developed by Prof Meintjes explains all the radiation in the system – from radio waves to X-rays – in terms of electrons accelerated to extremely high energy levels by electric fields in the system, which then produce synchrotron radiation over a very wide band of the electromagnetic spectrum.

Prof Meintjes is currently working on a follow-up article examining the evolution of the AR Sco, in other words, the origin of such a unique system and the final state towards which it is evolving. “My vision for the immediate future is therefore to develop a model for the evolution of the source concerned,” he says.

 

 

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