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30 November 2021 | Story Leonie Bolleurs | Photo Supplied
Prof Johan Meyer, Senior Professor in the Department of Mathematics and Applied Mathematics, says he is looking forward to learning from others in the field during this collaboration.

What do trees, black holes, earthquakes, and time structures have in common? 

The answer to this question is that these, in one way or the other, form the focus of some of the abstracts delivered during the Annual Congress of the South African Mathematical Society. The society has as its main objective the advancement of mathematics in South Africa. 

The Department of Mathematics and Applied Mathematics at the University of the Free State (UFS), in conjunction with the South African Mathematical Society (SAMS 2021), is hosting the 64th Annual Congress of the society this week (29 November to 1 December 2021).

Prof Johan Meyer, Senior Professor in the department, says the congress, which is being conducted online, is focusing on all aspects of mathematics research, including history and teaching.

Learning from others in the field

The congress, which aims to share the latest research results in mathematics, will be attended by staff and students from universities across South Africa as well as abroad. “Anyone from the public is, of course, welcome to attend or even share their results if they are also involved in mathematics research,” adds Prof Meyer. 

He says that he is looking forward to learning from others in the field during this collaboration. 

The congress will include discussions on more than 120 abstracts, covering category theory, algebra, topology, logic; functional analysis and operator theory; finite groups and combinatorial structures; graph theory and combinatorics; lie symmetries and nonlinear differential equations; and applied and numerical mathematics.

Array of interesting topics presented

“It is important in many areas of science and engineering to predict and to simulate rare, random events, the occurrence of which may have negative or even catastrophic consequences. Examples include internet server overflows, mechanical breakdowns, floods, and financial crashes. Rare events can also have a positive effect, triggering for example chemical reactions or driving genetic evolution via random mutations.” Prof Hugo Touchette from Stellenbosch University will be shedding some light on this interesting topic in his presentation on Predicting and simulating rare events.

Prof Jeandrew Brink, Associate Professor in the Department of Mathematics and Applied Mathematics at the UFS, is presenting a plenary session on the topic Determining the geometry of strong field space-times in spite of tacitly assuming the answer during every measurement. In South Africa, state-of-the art pulsar timing data from the MeerKAT telescope will make a considerable contribution to conducting GR orbital tests. Prof Brink comments on how pulsar timing tests differ from tests using gravitational wave detectors, as well as what we can learn from the framework already employed to perform pulsar timing measurements.

News Archive

UFS doctors fight childhood cancer
2016-09-02

Description: Childhood cancer  Tags: Childhood cancer

Prof David Stones and Dr Jan du Plessis of the
University of Free State’s paediatric oncology ward
are helping little lives, one patient at a time.
Photo: Nonsindiso Qwabe

Of 23 paediatric oncology specialists nationally, Prof David Stones and Dr Jan du Plessis of the University of Free State are the only ones in the province.

Committed to giving holistic care to their patients, the two doctors specialise in all types of childhood cancers, the most common being leukaemia, brain tumour, and nephroblastoma.

They describe the childhood malignancy as a lethal disease, unpredictability being its harshest trait. “With cancer, you can just never know. It precipitates and multiplies, and leads to the failure of other organs. You can just always hope, and keep trying,” said Du Plessis.

The paediatric oncology unit of the Universitas Academic Hospital, their unit, is the liveliest floor in the entire building. It is also the third busiest in South Africa, serving a demographic that spans the Free State and Northern Cape, as well as parts of North West, Eastern Cape and Lesotho.

Each year, the unit receives more than 100 new childhood cancer patients. In 2015, the unit had 113 newly diagnosed patients, an increase from 93 in 2014.

Lack of knowledge poses a serious challenge
According to the two experts, the lack of insight and awareness of the disease remain a big challenge to fighting it. “It is frustrating. Parents and family members don’t know anything about it. Nurses and doctors aren’t always clinically trained to pick up the early warning signs. By the time a diagnosis is made, life and death is on a 50% margin,” Stones said.

Poverty, a lack of resources, overcrowding and a range of health issues are other factors that have a profound effect on the diagnosis and treatment of the disease.

Making a contribution that will last
With a desire to see an improvement on life outcomes in the health sector, the team is focusing on educating the country’s doctors of tomorrow. Their unit is the only one in the country that actively involves medical students in an oncology unit, giving them practical experience and exposure to the individual cases each patient presents. They have also produced a substantial amount of research literature on childhood malignancies in South Africa as a developing country.

Driven by passion to see a better South Africa
The doctors are passionate about the work they do, and remain hopeful there will be a change in the incidence of childhood cancer   not just in decreased levels of the disease, but also in the overall state of well-being of young South Africans.

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