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17 April 2019 | Story Leonie Bolleurs
Science ambassadors
Friends Tekano Mbonani and Chaka Mofokeng are pursuing graduate degrees in respectively Physics at the University of the Free State (UFS) and Astronomy at the University of the Western Cape. The two got together and decided to reach out to the high school, Leseding Technical Secondary School, where they came from.

It was a full house as more than 120 learners packed the hall at the Leseding Technical Secondary School in the Free State, where two young Astronomy researchers had come home to tell their younger peers about their studies and career prospects across South Africa.

Chaka Mofokeng and Tekano Mbonani are both former learners at the high school. Currently pursuing graduate degrees – for Mbonani in Physics at the University of the Free State (UFS), and for Mofokeng in Astronomy at the University of the Western Cape – the two friends got together and decided to reach out to the high school where they came from.

The event took place in January before schoolwork, tests, and exam preparations are occupying learners’ minds, inviting them to think about the big picture – the future, and how to be part of it. This is timely, because in July last year, the MeerKAT radio telescope was inaugurated in the Karoo. The MeerKAT is the first step to the international SKA telescope project, but it is already one of the best radio telescopes in the world and has placed South Africa firmly on the world map of radio astronomy and engineering.

Building a bridge
“This project enables us to build a bridge between secondary and tertiary institutions. Currently focused on senior secondary students, we aim to promote science through outreach events and activities. Using science and technology-based activities and events, such as stargazing at an observatory or exploring the universe in a planetarium, we want to attract these future secondary graduates. We also provide mentorship, hoping to help them improve their academic performance in matric,” said Mbonani.

For a whole morning, they spoke about their journeys, about science, about the skills that scientists acquire during their studies and all the opportunities such studies open up in an era where the 4th Industrial Revolution is predicted to reduce the number of jobs in many traditional professions. They addressed their peers in both English and Sesotho.

Astronomy in South Africa contributes to critical-skills development. Investing in the MeerKAT, for example, meant that over a thousand bursaries were made available through the SKA South Africa Human Capacity Development programme. Young scientists like Mofokeng and Mbonani have the opportunity to be part of MeerKAT science projects through their studies, using machine learning and other skills that are high in demand in today’s world. This was one of the messages they brought home.

Gaining new skills

“As an Astronomy research student, I have gained skills such as data analysis, mathematical modelling, communication and writing, programming, and teamwork, among others. These are requirements for most companies and institutions. With the unfolding of the 4th Industrial Revolution, such skills sets make young and aspiring scientists the perfect candidates for making the most of future opportunities,” reflected Mofokeng.

Most of the learners said they have never attended a science-outreach event. They were inspired by the young scientists’ stories and nearly half of them said they could see themselves pursuing a career in science. The learners also expressed a strong interest in more events of this kind, as well as mentorship during Grades 11 and 12 from peers at university. They asked about the salaries earned by astronomers, how long the studies take, and where astronomers are working in South Africa.

This initiative, started by two bright young scientists, hopefully marks the beginning of many more events of this kind. Mofokeng and Mbonani are already planning what to do on their next trip home.

News Archive

UFS alumnus receives PhD in Statistics from the University of Oxford
2016-06-03

Description: DW Bester  Tags: DW Bester

In May of this year, DW Bester obtained
a DPhil in Statistics at the University of
Oxford.
Photo: Supplied

On 14 May this year, Dr DW Bester received a DPhil in Statistics from the University of Oxford. The entire ceremony, which was held in the Sheldonian Theatre in Oxford, was conducted in Latin, as has been the case for the past 800 years.

Dr Bester completed his undergraduate studies and his honours degree at the University of the Free State (UFS). “At first, I was only planning to study for a master’s degree, but was privileged to get an opportunity to do a PhD as well. I didn’t think twice!” he says.

Studies at the University of Oxford


Universities in England do not require a master’s degree for PhD studies. With the help of Prof Max Finkelstein from the UFS Department of Mathematical Statistics and Actuarial Science, Dr Bester registered for the DPhil programme in Statistics directly after his honours studies.

“The title of my thesis was: Joint survival models: A Bayesian investigation of longitudinal volatility. It dealt with a problem in the medical field to determine the cause of stroke risk: is it the absolute level of blood pressure, or the volatility thereof? The analysis of this question led to interesting models which needed advanced application techniques. I had to study these techniques and write programmes for their application.

Although Dr Bester is working currently as the technical head of a company that calculates insurance for power stations, satellites, rockets, and cyber risks, he would like to continue working with his Oxford supervisor in future to make the techniques they have developed more accessible for researchers outside of the field of statistics.
 
“Studying at Oxford requires hard work, perseverance, and a lot of luck. Luck plays a big role, since there are no guarantees that hard work will ensure you a spot in one of the top universities.

Regarding his studies at Oxford, Dr Bester thinks back on his exposure to the GNU/Linux operating system, and free software. “I have seen how valuable this is for analyses in practice. I also had the privilege of meeting the father of free software, Richard Stallman,” Dr Bester says.

2011 Rhodes Scholar

He was elected as Rhodes Scholar in 2011. According to Dr Bester, who has been interested in Mathematics since high school, the Rhodes scholarship was something of a fluke. He applied for the Rhodes scholarship on the recommendation of Prof Robert Schall of the Department of Mathematical Statistics and Actuarial Science.

Role of the UFS in his successes


In addition to the continued support from the team of passionate professors and lecturers at the UFS, the actuarial degree at the UFS is fraught with statistics. Emphasis is also placed on Bayesian statistics. This was crucial to his studies at Oxford. According to Dr Bester, this topic is emphasised strongly in the international statistics community.

Dr Bester regards the work done by two of his lecturers, Michael von Maltitz and Sean van der Merwe, among his highlights at the UFS. Since our first year, they have created an atmosphere of camaraderie among the students. “I think this contributed to the success of everybody. They also make an effort to present topics outside of the syllabus regularly,” says Bester.

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