Latest News Archive

Please select Category, Year, and then Month to display items
Categories
UFS News Media Release Research
Years
2017 2018 2019 2020 2021 2022 2023 2024
Months
January February March April May June July August September October November December
Previous Archive
24 March 2021 | Story Ruan Bruwer | Photo Netball South Africa
Defender Refiloe Nketsa is one of four Kovsies chosen for the South African U21 netball team.
With no less than four Kovsies in the South African Under 21 netball team, the near future for this sport at the University of the Free State (UFS) is certainly on the bright side.

Chanel Vrey, Refiloe Nketsa, Rolene Streutker, and Boitumelo Mahloko will be in action for the Baby Proteas, as the team is known, in a challenge series. The team will battle the President’s XII (a South African A team) and Uganda from 25 March in Cape Town. 

They all played for the Free State senior side last year. Vrey and Streutker also played for the Baby Proteas against international competition in 2019.

Mahloko – a former Kovsie – and Nketsa have also represented South Africa at junior level in the past. They were team members in the national U16 team in 2017, and a year later Mahloko made the U20 team and Nketsa the SA U18 team.

Khanyisa Chawane will also be in action in the series, playing for the Proteas, while former Kovsie captain Alicia Puren has been chosen for the President’s XII.

Meanwhile, two hockey players, Saré Laubscher and Zimkhitha Weston, have been picked for the South African U21 women’s hockey team. They would have participated in the African qualifying tournament in Ghana at the end of March. This tournament has, however, been postponed to January 2022. 

This is the third consecutive year that Laubscher has made the team. Weston, a former Kovsie, played for South Africa at the 2018 Youth Olympic Games in Argentina.

The African Hockey Qualifier serves as qualification for the Junior World Cup, which is scheduled for December in Potchefstroom. South Africa has already qualified as hosts for the Junior World Cup, but the African crown is up for grabs in Ghana. 

News Archive

Harvard couple to present lectures on Biostatistics and Mathematics at the UFS
2015-12-07


Professor Donald Rubin

Prof Donald Rubin (John L. Loeb Professor of Statistics at Harvard University) and Elizabeth Zell (MStat - mathematical statistician in the Division of Bacterial Diseases) will visit the University of the Free State (UFS) where they will present lectures on their respective work.

Over his prestigious academic career, Prof Don Rubin’s 400 publications and 13 books have earned him around 180 000 citations at an h-index of 113. He is one of the most cited statisticians/mathematicians/economists/psychologists in the world over the last 10 -15 years. He has supervised 35 PhD candidates as sole-supervisor, 17 more as co-supervisor, with a further eight in the pipeline.

Prof Rubin who will meet with UFS academics in the Department of Mathematics and Actuarial Sciences will also deliver a lecture: Rerandomisation to improve covariate balance in experiments.

Randomised experiments are the “gold standard” for estimating causal effects, yet in practice, chance imbalances often exist in covariate distributions between treatment groups. If covariate data are available before units are exposed to treatments, these chance imbalances can be mitigated by first checking covariate balance before the physical experiment takes place. Provided a precise definition of imbalance has been specified in advance, unbalanced randomisations can be discarded, followed by a rerandomisation. This process can continue until a randomisation yielding balance according to the definition is achieved. By improving covariate balance, rerandomisation provides more precise and trustworthy estimates of treatment effects.

Prof Rubin received an honorary professorship from the Faculty of Natural and Agricultural Sciences at the UFS.


Elizabeth Zell

The lecture will take place on:
Date: Tuesday 8 December 2015
Time: 16:00
Venue: Albert Wessels Auditorium, Bloemfontein Campus

Zell earned her Master’s degree in Statistics at North Carolina State University, and for more than two decades, was an active bio-statistical researcher in various offices of the Centers for Disease Control (CDC). Since 2013, she has been the Principal Statistician and President of Stat-Epi Associates, Inc. Her 150+ publications have earned her 14 500 citations at an h-index of over 50. She is a Fellow of the American Statistical Association, and, in 2010, she received the Statistics Section Government Award for outstanding contributions to statistics and public health by the American Public Health Association. During her career at the CDC, she earned more than 20 CDC research awards and honours.

She will deliver two lectures at the UFS. The first is entitled A Potential Outcomes Approach to Documenting the Public Health Impact of the Introduction of PCV13 for the Prevention of Invasive Pneumococcal Disease. The topic of her second lecture is: Assessing the Effectiveness of Intrapartum Antibiotic Prophylaxis for Prevention of Early-Onset Group B Streptococcus Disease through Propensity Score Design

Elizabeth’s lectures will take place on:
Date: Wednesday 9 December 2015
Time: 10:45 and 13:00
Venue: West Block 111, Bloemfontein Campus

For more information, please contact Dr Michael von Maltitz at VMaltitzMJ@ufs.ac.za.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept