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02 February 2021 | Story Dr Willemien Marais | Photo Supplied

The current issue of Communitas, academic journal of the Department of Communication Science in the Faculty of the Humanities at the University of the Free State (UFS), features scholarly articles ranging from indigenous knowledge systems for science and health communication to online discourses about male rape and the use of social media to increase social capital.  

Communitas is a nationally accredited, open-access academic journal publishing scientific articles in the context of community communication, information impact and related disciplines, including corporate and marketing communication, development and health communication, media studies, and journalism.

These articles address real-world challenges in the field of communication, as well as the impact of communication and information in developing societies, including Southern African communities. While the articles range in focus from global participation to area-specific issues in remote rural areas, they all highlight areas or aspects that form part of or contribute to the rich tapestry of the Southern African communication landscape, thus contributing to African knowledge creation.

Interdisciplinary experts write on real-world issues 

In the latest issue of Communitas, Dr Anton Binneman and Dr Corne Davis write about the use of indigenous knowledge systems for science communication in the context of the Square Kilometre Array radio astronomy project, while Lesego Radebe et al. investigate how traditional folk media can be used to convey diabetes mellitus messages at public health-care services. 

In an article by Dr Tsitsi Mkomde and Dr Estelle de Beer, nongovernmental organisations (NGOs) can benefit from their analysis of the communicative decision-making processes used by corporates to make decisions about funding NGOs and other donor recipients. In another NGO-related article, Prof Retha de la Harpe presents a conceptual model for NGOs and volunteer-based organisations to use data generated by an online platform to understand the invisible user.

For marketers and brand communicators, Dr Abyshey Nhedzi provides valuable insight into improving brand-linkage effectiveness for consumers from an African perspective, while Vuyelwa Constance Mashwa et al. focus on the consumer’s perspective in their article on the use of fictional spokes-characters in brand advertisements and communication. 

The increased focus on pro-environmental reputations by consumer brands and how this is reflected in South African print media, provides marketing-communication practitioners with guidelines to distinguish between types of green advertising, as identified by Prof Angelique van Niekerk and Dr Marthinus Conradie. Dr Patrick Mupambwa and Prof Norman Chiliya look at factors that influence the adoption of an e-marketing orientation among Zimbabwean churches. 

Heterosexual responses to lesbian and gay-themed advertisements are the focus of an article by Nkosiville Welcome Madigana et al., while Dr Karabo Sitto and Prof Elizabeth Lubinga analyse online discourses on gendered myths, risks, and the social amplification of male rape. 

With an increasing number of digital natives joining social media and the growing popularity of influencer culture, Dr Stenford Matenda et al. are looking at young people’s use of social media to increase social capital.  An article by Dr Mvuzo Ponono investigates the implications of current debates on fake news for South Africa and how we understand these insights in the context of histories of conflict and high inequality. Dr Ponono is a lecturer in Communication Science at the UFS. 

*Communitas uses a continuous publication (CP) model and authors are invited to submit manuscripts online or email the Editor-in-Chief, Dr Willemien Marais, at maraisw@ufs.ac.za for assistance. The journal is one of the accredited journals of the University of the Free State. Visit the Kovsie Journals webpage for more information. 

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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