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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

Great turnout for Hannes Meyer Symposium in Cardiothoracic Surgery
2017-05-05

Description: Hannes Meyer Symposium  Tags: Hannes Meyer Symposium

Symposium attendees watch attentively as
Dr Johan Brink demonstrated a MAZE procedure
with a pig’s heart.
Photo: Supplied

The University of the Free State’s Faculty of Health Sciences hosted the annual Hannes Meyer Symposium in Cardiothoracic Surgery. The symposium was organised by Prof Francis Smit, head of the department of Cardiothoracic Surgery at the UFS, with the support from the Society of Cardiothoracic Surgeons of South Africa and the European Association of Cardiothoracic Surgery (EACTS). Over the past 16 years this symposium has steadily been growing in stature and prestige leading to the resounding success that was this year’s event.

Medical advancements explored
The aim of the symposium is to provide an overview of the latest advances in Cardiothoracic Surgery and perfusion as well as providing hands-on training via simulation to trainees from South Africa and the rest of the African continent. Didactic lectures and papers by registrars were an integral component of the symposium. The South African community was represented by various heads of departments, trainees, senior specialists and perfusionists from all the training centres in the country. There were also delegates representing Uganda, Mozambique, Nigeria and Zambia.

Heart surgery off to new heights
Simulation in Cardiothoracic Surgery and Perfusion can be compared to airline pilots with high risk, with complex surgeries being first done in simulators before being attempted in the real world. The UFS is proud to have a state-of-the-art simulation facility, which was used to facilitate the programme.

The range of simulation was extensive and included simple procedural models to complex full theatre setups with Human Performance Models in perfusion that simulated crisis scenarios with the aid of computerised devices that react in real time to human intervention.

Industry support highly appreciated
This event was coordinated by Dr Jehron Pillay, senior registrar in the Department of Cardiothoracic Surgery and Marilee Janse van Vuuren, deputy-director clinical technology, in the department. This was the first time that such extensive simulation models were used in the programme and judging from the positive response received, it has certainly set the benchmark for all future events.

The event has received invaluable support over the years from EACTS that has selected Bloemfontein as the site of its African training programme as a result of the high level of training and education achieved here.

The academic discussions were chaired by Profs Marko Turina and Jose Pomar (past presidents of EACTS) and Pieter Kappetein (past secretary general of EACTS) who are extremely well known internationally for their contribution to advancing Cardiothoracic training and education.

Our guests from EACTS presented didactical lectures on research methodology, international randomised trials and discussed recent developments and controversies in cardiothoracic surgery.

Registrars from all South African units presented a thoracic and cardiac surgery paper from each unit highlighting specific disease conditions, moderated by heads of departments and the international panel.

An event of this magnitude requires significant financial support and the medical industry in South Africa stepped up to the plate in providing financial and logistical support in order to make it possible.

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