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26 September 2018
The Cardiac Simulation lab in action

There’s an electric atmosphere in the operating theatre of the Faculty of Health Sciences, as Dr Taha Gwila and his team focus with intense concentration on the fleshy exposed heart beating rhythmically in the opened chest of the patient lying in front of them. The enormous demands of open-heart surgery are evident to everyone looking on. But there’s a catch. 

The patient is faceless and rubberised. The red liquid flowing in the pipes that network from the body is not blood. And the pulsating heart was beating in the body of a pig not too long ago. 

Cutting edge technology
 
This Cardiac Simulation laboratory supplied by Medtronic is the newest addition to the School of Biomedical Sciences’ clinical simulation and skills unit. 

“There’s nothing like this in Africa, and only a few in the world,” says a beaming Prof Francis Smit, Head of Cardiothoracic Surgery at the Faculty of Health Sciences.
He explains that this new cutting edge medical technology will revolutionise the way cardiac surgeons and other health professionals are trained and assessed.

Practicing specific procedures

The simulation facilities give students with various levels of competency the opportunity to practice specific procedures in their own time and at their own pace.
“Traditionally training followed the apprentice model, where surgeons started with simple tasks and worked their way up. They assisted senior personnel and their exposure to procedures depended on the conditions presented by the patients before them,” explains Prof Smit.

The simulation technology now enables them to repeatedly practise a certain procedure without any risk to a patient. A sophisticated electronic grading system gives detailed feedback after each session, so they know in which areas to improve.  

Simulated emergencies

The system also allows trainers to create a medical emergency that the trainees then have to deal with.

“Assisting senior surgeons with high levels of competency means that in the past, trainees would often never get the chance to experience these kinds of complications during operating procedures. Now we give them a chance to build that confidence so they’ll be able to handle different situations.”  

Training hub for Africa
 

The UFS cardiothoracic programme is being designed to become a training hub for the whole of Southern Africa, combining distance learning with an on-site high-fidelity simulation and assessment centre.

“This is 100% real!” says an excited Dr Gwila after successfully completing his first simulation session. “As a Senior Registrar at the Cardiothoracic Department I’ve done similar procedures on real patients and there’s really no difference at all. Every registrar should do this before ever touching a real body.”

News Archive

Producers to save thousands with routine marketing strategies, says UFS researcher
2014-09-01

 

Photo: en.wikipedia.org

Using derivative markets as a marketing strategy can be complicated for farmers. The producers tend to use high risk strategies which include the selling of the crop on the cash market after harvest; whilst the high market risks require innovative strategies including the use of futures and options as traded on the South African Futures Exchange (SAFEX).

Using these innovative strategies are mostly due to a lack of interest and knowledge of the market. The purpose of the research conducted by Dr Dirk Strydom and Manfred Venter from the Department of Agricultural Economics at the University of the Free State (UFS) is to examine whether the adoption of a basic routine strategy is better than adopting no strategy at all.

The research illustrates that by using a Stochastic Efficiency with Respect to a Function (SERF) and Cumulative Distribution Function (CDF) that the use of five basic routine marketing strategies can be more rewarding. These basic strategies are:
• Put (plant time)
• Twelve-segment pricing
• Three-segment pricing
• Put (pollination)(Critical Moment in production/marketing process), and
• Pricing during pollination phase.

These strategies can be adopted by farmers without an in-depth understanding of the market and market-signals. Farmers can save as much as R1.6 million per year on a 2000ha farm with an average yield.

The results obtained from the research illustrate that each strategy is different for each crop. Very important is that the hedging strategies are better than no hedging strategy at all.

This research can also be applicable to the procurement side of the supply chain.

Maize milling firms use complex procurement strategies to procure their raw materials, or sometimes no strategy at all. In this research, basic routine price hedging strategies were analysed as part of the procurement of white maize over a ten-year period ranging from 2002–2012. Part of the pricing strategies used to procure white maize over the period of ten years were a call and min/max strategy. These strategies were compared to the baseline spot market. The data was obtained from the Johannesburg Stock Exchange’s Agricultural Products Division better known as SAFEX.

The results obtained from the research prove that by using basic routine price-hedging strategies to procure white maize, it is more beneficial to do so than by procuring from the spot market (a difference of more than R100 mil).

Thus, it can be concluded that it is not always necessary to use a complex method of sourcing white maize through SAFEX, to be efficient. By implementing a basic routine price hedging strategy year on year it can be better than procuring from the spot market.

Understanding the Maize Maze by Dr Dirk Strydom and Manfred Venter (pdf) - The Dairy Mail


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