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04 November 2024 | Story André Damons | Photo Supplied
Dr Emmanuel Arko-Cobbah
Dr Emmanuel Arko-Cobbah, Senior Lecturer and Medical Specialist in the Department of Surgery at the University of the Fee State (UFS) and a trauma surgeon, has recently been inducted as a Fellow of the American College of Surgeons (ACS).

Dr Emmanuel Arko-Cobbah, Senior Lecturer and Medical Specialist in the Department of Surgery at the University of the Fee State (UFS), says he hopes his induction as a fellow of the American College of Surgeons (ACS), will show the world that South Africa also produces great doctors from whom they can learn.

The ACS is dedicated to improving the care of the surgical patient and safeguarding standards of care in an optimal and ethical practice environment. Dr Arko-Cobbah was inducted on 19 October after a rigorous process. He was part of 1 800 candidates from around the world, but mostly from North America, with about 600 from other countries outside of the US and Canada.

Dr Arko-Cobbah, a trauma surgeon, says it feels surreal as it has always been his dream to become a Fellow of the American College of Surgeons, although it often felt like an impossible dream. “I truly thank God, and I am very grateful, because to me, it feels like it's all part of His plans for me, that is why He is making these things possible for me.

“As a trauma surgeon, it makes me feel I have achieved even beyond our borders, and it gives me the opportunity to also share the knowledge we have locally with the rest of the world. We have a lot to offer, but we tend to get underestimated because of where we’re from,” says Dr Arko-Cobbah.

To become a fellow of the ACS, applicants go through a selection process after applying and then they need to be nominated by three different fellows of the American College who are in good standing. If their nominations get accepted, an interview follows whereafter the reports are reviewed by the committee which then decides the outcome.

South Africa produces great doctors

According to Dr Arko-Cobbah, he hopes to put the UFS on the map with this lifelong fellowship so that the world can know South Africa also produces great doctors and that they can learn from these doctors. “The other side of the coin is for me to inspire others to also aim to get into the American College, and to dream even bigger than this. If I could do this, then anybody can. Partner with God, and dream big dreams, and make big plans. That is what I was taught by Pastor At Boshoff since I was a student, and God has always been faithful.”

After qualifying as doctor and becoming a general surgeon at the UFS, and super specialised as a trauma surgeon, Dr Arko-Cobbah completed a Surgical Leadership Programme with Harvard University in Boston, in the US. “God has always been good to me, and I am forever grateful to the support of my wife and family and continued inspiration and mentorship from Prof André Loubser. I am grateful to the late Prof Theron, and the UFS Surgery Department, past and present, for always pushing me to be better. 

News Archive

Research helps farmers save with irrigation
2017-02-15

Description: Irrigation research Tags: Irrigation research

Marcill Venter, lecturer in the Department of
Agricultural Economics at the University of the
Free State, has developed the mathematical
programming system, Soil Water Irrigation
Planning and Energy Management in order to
determine irrigation pump hours.
Photo: Rulanzen Martin

Her advice to farmers is that they should make sure they are aware of the total cost (investment and operating costs) of an irrigation system. In most cases the investment cost is low, but the operating cost over the lifetime of the system is high.

“It is very important to have a look at the total cost and to install the most economic system,” says Marcill Venter, lecturer at the University of the Free State (UFS), who has done research on the economic sustainability of water-pipe systems.

Irrigation systems important components for farming
This research comes at a time when many farmers are relying on their irrigation systems due to persistent drought and low rainfall during 2016. South Africa has also experienced an abnormal increase in electricity tariffs in recent years. Due to tariff increases which threaten the future profitability of irrigation producers, the Water Research Commission (WRC) has launched and financed a project on the sustainable management of irrigation farming systems. “I had the opportunity to work on the project as a researcher,” says Venter.

The heart of every irrigation system is the water pipes that bring life to crops and livestock, and this is what Venter’s research is about. “Water pipes are part of the whole design of irrigation systems. The design of the system impact certain factors which determine the investment and operating costs,” she says.

Mathematical system to help farmers
Venter and Professor Bennie Grové, also from the Department of Agricultural Economics at the UFS, designed the Soil Water Irrigation Planning and Energy Management (SWIP-E) programming model as part of the WRC’s project, as well as for her master’s degree. “The model determines irrigation pump hours through a daily groundwater budget, while also taking into account the time-of-use electricity tariff structure and change in kilowatt requirements arising from the main-line design,” says Venter. The model is a non-linear programming model programmed in General Algebraic Modeling System (GAMS).

Design of irrigation system important for sustainability

The main outcome of the study is that the time-of-use electricity tariff structure (Ruraflex) is always more profitable than the flat-rate structure (Landrate). The interaction between the management and design of a system is crucial, as it determines the investment and operating costs. Irrigation designers should take the investment and operating cost of a system into account during the design process. The standards set by the South African Irrigation Institute (SAII) should also be controlled and revised.

Water-pipe thickness plays major role in cost cuts
There is interaction between water-pipe thickness, investment and operating costs. When thinner water pipes are installed, it increases the friction in the system as well as the kilowatt usage. A high kilowatt increases the operating cost, but the use of thinner water pipes lowers the investment cost. Thicker water pipes therefore lower the friction and the kilowatt requirements, which leads to lower operating costs, but thicker pipes have a higher investment cost. “It is thus crucial to look at the total cost (operating and investment cost) when investing in a new system. Farmers should invest in the system with the lowest total cost,” says Venter.

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