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26 April 2022 | Story Dr Qinisani Qwabe
Dr Qinisani Qwabe
Dr Qinisani Qwabe

South Africa recently witnessed a catastrophic natural disaster that resulted in the loss of life, livelihoods, and infrastructural damage. This occurred in KwaZulu-Natal where hundreds of people lost their lives as a result of extensive flooding and mudslides. President Cyril Ramaphosa declared a national state of disaster to which we should all respond. Specific reference was made to the public and private sectors, as well as civil society.

While I applaud the various stakeholders that have extended a helping hand, my heart bleeds for the vulnerable groups whose voices remain unheard, even under normal circumstances. One cannot help but wonder if aid will reach the isolated regions that suffered the adverse effects of these heavy rains, or if all developmental efforts will be prioritised to certain economic hubs of the province such as the eThekwini Metro and the capital, uMgungundlovu.

KwaZulu-Natal is among the poorest provinces in the country. Corroborating this claim is a report that was released by Statistics South Africa earlier this year which reveals that about 52% of the province’s population are considered to be ‘poor’,and live at the lower end of the poverty line.

Drawing from my experiences of the rural communities of KwaZulu-Natal with whom I have worked, many suffer from the triple challenge of poverty, inequality, and unemployment, and rely on agriculture for their livelihood and to put food on the table. Their supplementary income is obtained from government support grants. The graphic scenes that have been shown on the media illustrate the devastating effects of the heavy rains in regions within the agricultural sector. Fields have been washed away, crops and livestock have been lost. This is happening when the province is still trying to resuscitate its economy after the widespread looting that took place in July last year, which had a calamitous effect on businesses and livelihoods.

While this is an injury mainly for the people of KwaZulu-Natal, it is my wish that we all join hands in contributing towards the restoration of livelihoods. In agreement with the president’s assertion, we can all play a part in rebuilding the province. This includes institutions of higher learning, particularly the Community Engagement Directorates whose mandate is to drive socioeconomic development to external communities.

Related article:
Opinion: KZN floods expose significant socio-economic and environmental vulnerabilities

KZN FLOODS

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.

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