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Prof Abon Atangana
Prof Abdon Atangana, leading applied mathematics scholar at the University of the Free State, who has been awarded the Chevalier de l’Ordre de la Valeur by the President of Cameroon in recognition of his outstanding contributions to science and international academic engagement.

In recognition of his exceptional contributions to science and for promoting a positive image of Cameroon internationally, Prof Abdon Atangana, a leading professor of applied mathematics at the University of the Free State (UFS), has been awarded one of the country’s highest national honours by His Excellency President Paul Biya.

Prof Atangana, who is based in the UFS Faculty of Natural and Agricultural Sciences, was formally informed by the Cameroon High Commission in Pretoria that the President had decided to confer upon him the title Chevalier de l’Ordre de la Valeur (Knight of the Order of Valour).

“I am deeply honoured by this recognition and grateful to the High Commission for conveying the news,” said Prof Atangana.

The Ordre de la Valeur is one of Cameroon’s principal national distinctions, awarded to individuals who have rendered distinguished service or made significant contributions in fields such as science, public service, the arts, or international representation.

“The title Chevalier denotes formal national recognition by the President,” Prof Atangana explained. “It affirms the value of my work and encourages continued research, mentorship, and international collaboration.”

 

A career of global impact and recognition

Prof Atangana’s career is marked by both academic excellence and international engagement. He has consistently ranked among the top 1-2% of applied mathematicians worldwide, according to Stanford University’s global list. His achievements include being the first African mathematician under 40 to become a Fellow of the African Academy of Sciences Affiliates, receiving the UNESCO–TWAS Mohammad A. Hamdan Prize, the AL Fozan UNESCO Award for STEM, and the African Genius Award.

He also serves as Chair of the African Mathematical Union Commission on Research and Innovation and is the first President of the African Society for Industrial and Applied Mathematics (ASIAM).

In a historic milestone for African mathematics, Prof Atangana represented Africa for the first time at the Board Meeting of the International Council for Industrial and Applied Mathematics (ICIAM) in Vietnam in 2025. This prestigious gathering brings together presidents of national and international applied mathematics societies, including the President of the International Mathematical Union, and marks a significant recognition of his leadership on the global stage. 

“Being named Chevalier de l’Ordre de la Valeur recognises years of sustained work and the support of many colleagues and students,” he said. “Professionally, it is an important encouragement to continue my research, mentoring, and international engagement.”

Beyond awards, Prof Atangana has actively promoted Cameroon’s profile in the international scientific community. He has built high-impact research collaborations, supervised and mentored students from Cameroon and across Africa, presented at international conferences, and published research connecting African science with global knowledge networks.

 

Advancing science through the UFS and international collaboration

Much of the work recognised by this honour has been conducted at the University of the Free State.

“The recognition reflects the outcomes of work done at the UFS and signals the university’s contribution to advancing regional research capacity and international partnership,” Prof Atangana said.

His academic engagement in South Africa has enabled him to act as a bridge between institutions, fostering joint research, student exchanges, and collaboration across continents. These activities demonstrate the power of academic engagement in promoting scientific excellence and strengthening international networks.

Looking ahead, Prof Atangana plans to leverage this recognition to expand collaborative research projects, create more opportunities for student exchanges and mentorship, and advance interdisciplinary initiatives addressing regional and global challenges.

“I will continue to promote the value of academic engagement in service of shared scientific and societal goals,” he said. “This recognition will inspire me to strengthen collaborative networks, pursue joint research initiatives, and mentor the next generation of researchers.”

Details of the official medal award ceremony will be shared by the Cameroon High Commission in due course.

News Archive

To tan or not to tan: a burning issue
2009-12-08

 Prof. Werner Sinclair

“Some evidence exists which implies that sunscreens could indeed be responsible for the dramatic rise in the incidence of melanoma over the past three decades, the period during which the use of sunscreens became very popular,” says Prof. Werner Sinclair, Head of the Department of Dermatology at the University of the Free State. His inaugural lecture was on the topic Sunscreens – Curse or Blessing?

Prof. Sinclair says the use of sunscreen preparations is widely advocated as a measure to prevent acute sunburn, chronic sun damage and resultant premature skin aging as well as skin malignancies, including malignant melanoma. There is inconclusive evidence to prove that these preparations do indeed achieve all of these claims. The question is whether these preparations are doing more harm than good?

He says the incidence of skin cancer is rising dramatically and these tumours are induced mostly by the ultra-violet rays.

Of the UV light that reaches the earth 90-95% belongs to the UVA fraction. UVC is normally filtered out by the ozone layer. UVB leads to sunburn while UVA leads to pigmentation (tanning). Because frequent sunburn was often associated with skin cancer, UVB was assumed, naively, to be the culprit, he says.

Exposure to sunlight induces a sense of well-being, increases the libido, reduces appetite and induces the synthesis of large amounts of vitamin D, an essential nutritional factor. The use of sunscreen creams reduces vitamin D levels and low levels of vitamin D have been associated with breast and colon cancer. Prof. Sinclair says the 17% increase in breast cancer from 1981 to 1991 parallels the vigorous use of sunscreens over the same period.

Among the risk factors for the development of tumours are a family history, tendency to freckle, more than three episodes of severe sunburn during childhood, and the use of artificial UV light tanning booths. He says it remains a question whether to tan or not. It was earlier believed that the main carcinogenic rays were UVB and that UVA merely induced a tan. The increase in UVA exposure could have severe consequences.

Prof. Sinclair says the UV light used in artificial tanning booths consists mainly of pure UVA which are highly dangerous rays. It has been estimated that six per cent of all melanoma deaths in the UK can be directly attributed to the use of artificial tanning lights. The use of an artificial tanning booth will double the melanoma risk of a person. “UVA is solely responsible for solar skin aging and it is ironical that tanning addicts, who want to look beautiful, are inflicting accelerated ageing in the process,” he says.

On the use of sunscreens he says it can prevent painful sunburn, but UVA-induced damage continues unnoticed. UVB blockers decrease vitamin D synthesis, which is a particular problem in the elderly. It also prevents the sunburn warning and therefore increases the UVA dosage that an individual receives. It creates a false sense of security which is the biggest problem associated with sunscreens.

Evidence obtained from the state of Queensland in Australia, where the heaviest and longest use of sunscreens occurred, boasted the highest incidence of melanoma in the world. A huge study in Norway has shown a 350% increase in melanoma for men and 440% for women. This paralleled the increase in the use of UVB blocking sunscreens while there was no change in the ozone layer. It did however, occur during that time when tanning became fashionable in Norway and there was an increase especially in artificial tanning.

Prof. Sinclair says: “We believe that sunscreen use does not directly lead to melanoma, but UVA exposure does. The Melanoma Epidemic is a reality. Sunscreen preparations are not the magical answer in the fight against melanoma and the irresponsible use of these preparations can worsen the problem.”

Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
7 December 2009

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