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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 lecturer overcomes barriers to become world-class researcher
2016-09-05

Description: Dr Magteld Smith researcher and deaf awareness activist Tags: Dr Magteld Smith researcher and deaf awareness activist

Dr Magteld Smith researcher and deaf awareness
activist, from the Department of Otorhinolaryngology
at the UFS.
Photo: Nonsindiso Qwabe

Renowned author and disability activist Helen Keller once said the problems that come with being deaf are deeper and more far-reaching than any other physical disability, as it means the loss of the human body’s most vital organ, sound.

Dr Magteld Smith, researcher at the Department of Otorhinolaryngology (Ear, Nose and Throat) at the University of the Free State, said hearing loss of any degree can have psychological and sociological implications which may impair the day-to-day functioning of an individual, as well as preventing the person from reaching full potential. That is why Smith is making it her mission to bring about change in the stigmatisation surrounding deafness.

Beating the odds
Smith was born with bilateral (both ears) severe hearing loss, which escalated to profound deafness. But she has never allowed it to hinder her quality of life. She matriculated from a school for the deaf in 1985. In 2008 she received a cochlear implant   a device that replaces the functioning of the damaged inner ear by providing a sense of sound to the deaf person   which she believes transformed her life. Today, she is the first deaf South African to possess two masters degrees and a PhD.

She is able to communicate using spoken language in combination with her cochlear implant, lip-reading and facial expressions. She is also the first and only deaf person in the world to have beaten the odds to become an expert researcher in various fields of deafness and hearing loss, working in an Otorhinolaryngology department.

Advocating for a greater quality of life
An advocate for persons with deafness, Smith conducted research together with other experts around the world which illustrated that cochlear implantation and deaf education were cost-effective in Sub-Saharan Africa. The cost-effectiveness of paediatric cochlear implantation has been well-established in developed countries; but is unknown in low resource settings.

However, with severe-to-profound hearing loss five times higher in low and middle-income countries, the research emphasises the need for the development of cost-effective management strategies in these settings.

This research is one of a kind in that it states the quality of life and academic achievements people born with deafness have when they use spoken language and sign language as a mode of communication is far greater than those who only use sign language without any lip-reading.

Deafness is not the end

What drives Smith is the knowledge that deaf culture is broad and wide. People with disabilities have their own talents and skills. All they need is the support to steer them in the right direction. She believes that with the technological advancements that have been made in the world, deaf people also have what it takes to be self-sufficient world-changers and make a lasting contribution to humanity.

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