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07 September 2018 Photo Stephen Collett
Mathematician makes popular contribution to science Prof Atangana
Prof Atangana is the first African under 40 years of age to be selected as African Academic of Science affiliated in Mathematics. He recently delivered his inaugural lecture and is pictured with Eelco Lukas, Director of the Institute for GroundwaterStudies at the UFS (middle) and Prof Hendri Kroukamp, Acting Vice-Rector: Academic
Prof Abdon Atangana, researcher in the Institute for Groundwater Studies at the University of the Free State (UFS), recently delivered his inaugural lecture on the topic: Understanding God’s Nature with Non-Local Operators.

His research interests are methods and applications of partial and ordinary differential equations, fractional differential equations, perturbation methods, asymptotic methods, iterative methods, and groundwater modelling. Prof Atangana is the founder of the fractional calculus with non-local and non-singular kernels popular in applied mathematics today. He has introduced more than 12 mathematical operators, most of which bear his name (such as the Atangana-Baleanu fractional integral).

He stated: “We will not stop until we change the classical view of doing mathematics. Mathematics is not a subject but a tool given to mankind by God to understand nature. One single mathematical operator cannot portray God’s nature accurately. Therefore the Atangana Baleanu was suggested.”

New weapons

Most physical problems can be expressed in terms of mathematical formulations called differential equations. According to him the differential equation’s aim is to analyse, understand, and predict the future of a physical problem. Prof Atangana introduced the Atangana-Baleanu fractional integral. This brought new weapons into applied mathematics to model complex real-world problems more accurately.

Prof Atangana explained: “The Atangana-Baleanu fractional derivative is able to describe real-world problems with different scales, or problems that change their properties during time and space for instance, the spread of cancer, the flow of water within heterogeneous aquifers, movement of pollution within fractured aquifers, and many others. This crossover behaviour is observed in many empirical systems.”

Sudden change

The Atangana-Baleanu fractional derivative is also able to describe physical or biological phenomena, such as a heart attack, the physiological progression from life to death, structural failure in an aeroplane, and many other physical occurrences with sudden change with no steady state.

The new differential and integral operators are nowadays in fashion and are being applied with great success in many fields to model complex natural phenomena. It is believed that the future of modelling complex real-world problems relies on these non-local operators.

News Archive

UFS hosts sign language workshop to educate parents
2017-05-22

Description: Sign language workshop to educate parents Tags: Sign language workshop to educate parents

Back row; from left; John Keitsemore from
Bartimea School for the Deaf; Philip Cook,
the headmaster at De la Bat School for the
Deaf in Worcester; Jeannie Cook, De la Bat School
for the Deaf; front, from left; Marisa Vermeulen, mother
of two deaf children and teacher at Bartimea
School for the Deaf in Thaba Nchu; Marianne Kühn,
audiologist, and Susan Lombaard, acting Head of the
Department of South African Sign Language.
Photo: Rulanzen Martin

“Ninety percent of deaf children are born into hearing families. When parents first receive the news, they are shocked, angry and confused,” says Susan Lombaard, Acting head of the Department of South African Sign Language at the University of the Free State (UFS).

The department hosted a workshop, “Early intervention options for the child with a hearing loss”, on Friday 12 May 2017 on the Bloemfontein Campus. “It is the first time a sign language workshop of this kind was hosted by the Department of South African Sign Language at the UFS,” says Lombaard, who facilitated the workshop. They hope to make it an annual event.

Parents of deaf children do not always know how they will communicate with their children or where the child must attend school. The workshop aimed to provide parents with the necessary information on different communication options and also touched on school placement.

Support group for parents established
A support group for parents was also established, the first of its kind in the province. It will provide much-needed support, information and guidance for parents of deaf children.

Some of the speakers at the workshop included Anri Esterhuizen, an audiologist; Marianne Kühn from the Carel du Toit Centre, Marisa Vermeulen, who is a mother of two deaf children, and Phillip Cook, the headmaster at De la Bat School for the Deaf in Worcester, in the Western Cape. Jeannie Cook, also a presenter, provided information on sign language acquisition of the small deaf child, which is done through creative play.

Professionals have responsibility
South African Sign Language is a language in its own right and is not international. “Sign language is a visual language with its own grammar and syntax different from spoken language,” Lombaard said.

There has been much controversy surrounding teaching deaf children to speak and teaching them to sign. “We as professionals have the responsibility to provide information on all options. This is to help the parent make informed decisions about communication and school placement.”

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