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Advancing food security; doing it differently

27 September 2021 | Story Leonie Bolleurs | Photo Supplied

Frikkie copy — Dr Frikkie Maré is serving as one of the directors of the non-profit organisation, the Agri Relief Foundation (ARF).

The agricultural sector is used to facing events of abnormal impact, including floods, droughts, veld fires, and disease outbreaks. Even if it is possible to prepare against any of these risks by taking proper measures, for instance by having a farm emergency plan in place or by securing property properly, there are times when it is not possible or practical for the modern-day South African farmer to proactively manage all the risks they are facing.

It is in times like these that the newly established body, the Agri Relief Foundation (ARF), provides an invaluable service to the agricultural sector.

Dr Frikkie Maré, Senior Lecturer in the Department of Agricultural Economics at the University of the Free State (UFS), is one of the directors of this non-profit organisation, which focuses on assisting agricultural producers in need.

This initiative is the brainchild of a number of businesses in the agricultural sector.

He says although there are many institutions in South Africa assisting farmers, most of the current initiatives are geared towards large-scale disasters, such as severe droughts, floods, unpreventable pests and diseases, and veld fires that affect many producers.

Benefiting the wider society

According to Dr Maré, the ARF will focus on helping individual agricultural producers who are in need; both financially and otherwise. This may include elements such as the loss of grazing due to brown locust, assistance after a farm attack or murder to ensure the day-to-day running of the farm, and localised natural disasters such as floods, hail, severe cold, or fire.

The group of directors plays a key role in screening the applications for assistance and deciding, based on merit and the availability of resources, who they can assist.

Besides the direct benefit to the farmer, this initiative also adds value to the wider society. “When the sustainability of an agricultural producer is under threat, it also threatens the livelihoods of his/her workers and their families, the rural economy of the nearest town where they purchase production inputs and general groceries, as well as society at large, as less food and/or fibre will be produced. The assistance of the ARF will therefore ripple out to a much larger level than only the agricultural producer,” explains Dr Maré.

A learning experience

There is also a benefit for the university. In the classroom, Dr Maré will be able to share any knowledge he is gaining in this process with his students. “Agricultural Economics is fundamentally about ensuring the long-term sustainability of agricultural production through concepts, including but not limited to, production economics, natural resource economics, agricultural management, and marketing. My involvement in the ARF will provide examples of what can go wrong in terms of primary production that threatens the sustainability of the enterprise and what can be done to assist,” he says.

Any business or individual can contribute to this noble cause. Financial contributions as well as physical products such as transport, fuel, animal feed, and legal services are welcome.

Dr Maré says they have already received contributions from companies such as Zoetis (animal health), which sponsor a part of their profit from certain products to the foundation on a continuous basis. Lavendula (animal feed) also sponsored the proceeds of a farmers’ information day.

News Archive

Fight against Ebola virus requires more research

2014-10-22

Dr Abdon Atangana
Photo: Ifa Tshishonge

Dr Abdon Atangana, a postdoctoral researcher in the Institute for Groundwater Studies at the University of the Free State (UFS), wrote an article related to the Ebola virus: Modelling the Ebola haemorrhagic fever with the beta-derivative: Deathly infection disease in West African countries.

“The filoviruses belong to a virus family named filoviridae. This virus can cause unembellished haemorrhagic fever in humans and nonhuman monkeys. In literature, only two members of this virus family have been mentioned, namely the Marburg virus and the Ebola virus. However, so far only five species of the Ebola virus have been identified, including: Ivory Coast, Sudan, Zaire, Reston and Bundibugyo.

“Among these families, the Ebola virus is the only member of the Zaire Ebola virus species and also the most dangerous, being responsible for the largest number of outbreaks.

“Ebola is an unusual, but fatal virus that causes bleeding inside and outside the body. As the virus spreads through the body, it damages the immune system and organs. Ultimately, it causes the blood-clotting levels in cells to drop. This leads to severe, uncontrollable bleeding.

Since all physical problems can be modelled via mathematical equation, Dr Atangana aimed in his research (the paper was published in BioMed Research International with impact factor 2.701) to analyse the spread of this deadly disease using mathematical equations. We shall propose a model underpinning the spread of this disease in a given Sub-Saharan African country,” he said.

The mathematical equations are used to predict the future behaviour of the disease, especially the spread of the disease among the targeted population. These mathematical equations are called differential equation and are only using the concept of rate of change over time.

However, there is several definitions for derivative, and the choice of the derivative used for such a model is very important, because the more accurate the model, the better results will be obtained. The classical derivative describes the change of rate, but it is an approximation of the real velocity of the object under study. The beta derivative is the modification of the classical derivative that takes into account the time scale and also has a new parameter that can be considered as the fractional order.

“I have used the beta derivative to model the spread of the fatal disease called Ebola, which has killed many people in the West African countries, including Nigeria, Sierra Leone, Guinea and Liberia, since December 2013,” he said.

The constructed mathematical equations were called Atangana’s Beta Ebola System of Equations (ABESE). “We did the investigation of the stable endemic points and presented the Eigen-Values using the Jacobian method. The homotopy decomposition method was used to solve the resulted system of equations. The convergence of the method was presented and some numerical simulations were done for different values of beta.

“The simulations showed that our model is more realistic for all betas less than 0.5. The model revealed that, if there were no recovery precaution for a given population in a West African country, the entire population of that country would all die in a very short period of time, even if the total number of the infected population is very small. In simple terms, the prediction revealed a fast spread of the virus among the targeted population. These results can be used to educate and inform people about the rapid spread of the deadly disease,” he said.

The spread of Ebola among people only occurs through direct contact with the blood or body fluids of a person after symptoms have developed. Body fluid that may contain the Ebola virus includes saliva, mucus, vomit, faeces, sweat, tears, breast milk, urine and semen. Entry points include the nose, mouth, eyes, open wounds, cuts and abrasions. Note should be taken that contact with objects contaminated by the virus, particularly needles and syringes, may also transmit the infection.

“Based on the predictions in this paper, we are calling on more research regarding this disease; in particular, we are calling on researchers to pay attention to finding an efficient cure or more effective prevention, to reduce the risk of contamination,” Dr Atangana said.

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