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01 February 2019 | Story Zama Feni | Photo Charl Devenish
Disease Control and Prevention InStory
From left, seated: Dr Mathew Esona, CDC delegate; Dr Michael Bowen, CDC delegate; Dr Martin Nyaga, lead Researcher at the UFS-NGS Unit; standing: Mojalefa Buti, Office of the Vice-Dean, UFS Faculty of Health Sciences; Dr Glen Tylor, Senior Director, Directorate Research Development; Cornelius Hagenmeier, Director, Office for International Affairs; and Dr Saheed Sabiu, Postdoctoral Research Fellow in the Faculty of Natural and Agricultural Sciences.

In pursuit of efforts to advance research on viruses and disease control, the United States-based Centre for Disease Control and Prevention (CDC) has made a commitment to enhance the University of the Free State (UFS) Next Generation Sequencing (NGS) Unit’s data collection systems and further empower its staff and students.

UFS and US guests explore areas of mutual; cooperation

During a visit to the university in early December last year CDC delegation, Dr Michael Bowen and Dr Mathew Esona, a meeting was held with the lead Researcher at the UFS-NGS Unit, Dr Martin Nyaga; Senior Director of the UFS Directorate Research Development, Dr Glen Tylor; Director of UFS Office for International Affairs, Cornelius Hagenmeier; and Dr Saheed Sabiu Postdoctoral Research Fellow in the Faculty of Natural and Agriculture Sciences. It was in this meeting that areas of mutual collaboration and engagement between the two institutions which include technology transfer, funding and wet and dry laboratory quality control and capacity development were identified.

The UFS-NGS Unit, established in 2016, enjoys longstanding networking and collaborative ventures with renowned researchers in Africa, the USA, and Europe – which in return, have contributed immensely to the research activities of the university as a whole.

Dr Nyaga said in an effort to advance genomics research in the NGS Unit, the visitors have committed themselves to initiate and further enhance capacity development for the unit’s staff and students.

US guests impressed with advanced equipment at UFS

The CDC delegation were intrigued that the UFS also operates a Miseq Illumina platform like the one used at their enteric-viruses laboratory. It could thus be in line to assist in developing exclusive pipelines for the analysis of NGS data generated by the UFS-NGS Unit.

This is a personal sequencing system, which is a powerful state-of-the-art next-generation sequencer. It uses sequencing-by-synthesis technology capable of sequencing up to 15GB of high-quality filtered bases per run, with up to 600 base-pair read lengths. This allows the assembly of small genomes or the detection of target variants with unmatched accuracy, especially within homo-polymer regions.

UFS and CDC engagements still on

Further engagements about the identified areas of collaboration are ongoing between Hagenmeier, Dr Bowen, and Dr Nyaga, who are currently working on appropriate mechanisms to enact the envisaged collaboration between the two institutions.

The NGS Unit received research awards from the World Health Organisation, South African Medical Research Council, Poliomyelitis Research Foundation, and the National Research Foundation for different aspects of genomics research, and more recently from the Bill and Melinda Gates Foundation for the Enteric Viruses Genome Initiative, involving four African countries (South Africa, Ghana, Malawi, and Cameroon).

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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