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09 May 2019 | Story Eugene Seegers | Photo Johan Roux
Jan-Albert van den Berg
Prof Rantoa Letšosa, Dean of the Faculty of Theology and Religion; Prof Jan-Albert van den Berg; Prof Kobus Schoeman, Head of the Department of Practical and Missional Theology; and Prof Engela van Staden, Vice-Rector: Academic.

“Have we — have I — thought sufficiently about the deeper and sacred meaning of everyday life?” Intriguingly, this was how Prof Jan-Albert van den Berg concluded his inaugural lecture on 28 March 2019. During this journey, Prof Van den Berg took his listeners via the scenic route, starting with a mere outline of the divine — first a sketch, then a drawing, until a fully-fledged painting emerges — ending with a manifestation of glory as seen by each individual.

Faith in popular culture

“Practical theology,” said Prof Van den Berg, “implies a specific sensitivity and feeling for the description and meaning of practice and praxis. The use of narratives is one possible way of understanding and documenting a specific involvement in praxis.”

As an object lesson from popular culture, Prof Van den Berg cited the now-infamous-yet-ultimately-beneficial amateur restoration of the Ecce Homo by octogenarian Cecilia Giménez in Borja, Spain. The original fresco, ‘Behold the Man’, was painted in 1930 by Spaniard Elías García Martínez. By 2012, the artwork had suffered the ravages of time, until Giménez’s enthusiasm for art restoration happened to it. At first, the historical society and local townsfolk were up in arms. However, since 2012, Borja’s flagging tourist industry has been revived, and the proceeds from the picture’s fame help to fund not only a local museum but a care home for the elderly as well. 

The entire debacle quickly went viral on social media and the internet, leading Prof Van den Berg to comment on the underlying significance of social media as a field of praxis. As a nod to this aspect of modern culture, he specifically used hashtags (#sketching, #drawing, #painting, #tweetingGod, #findingthesacred) for the subtitles of his lecture. He said, “This is how the Twitter world in particular talks about God, in order to express multiple and compound understandings of daily life.” 

Evergreen Bible student

Prof Van den Berg’s love of practical theology dated back to his days as a student, when he said he learnt that “theology was not just a noun but a verb”. He said: “Practical theology’s description of the Divine in everyday life represents, for me, the relevance and topicality with which I associate theology.” He added that the title of his inaugural lecture directly relates to this understanding, as much as it can be strongly associated with his recent doctoral thesis at the University of Queensland, entitled Tweeting God: A practical theological analysis of the communication of Christian motifs on Twitter.

Expressions of faith in the mundane

In answering his question, mentioned at the outset, Prof Van den Berg said: “Perhaps there is more to be seen, heard, and read in everyday-life texts of the Cecilias of the world who take up their ‘paintbrushes’ ”. Stating that formal theological language has, in certain aspects, lost some of its impact and that many people have turned a deaf ear to the articulation of these truths, Prof Van den Berg concluded that “one must envision possible alternative descriptions, in the form of existing practices of #tweetingGod, finding the sacred in everyday life”.



News Archive

Mathematical methods used to detect and classify breast cancer masses
2016-08-10

Description: Breast lesions Tags: Breast lesions

Examples of Acho’s breast mass
segmentation identification

Breast cancer is the leading cause of female mortality in developing countries. According to the World Health Organization (WHO), the low survival rates in developing countries are mainly due to the lack of early detection and adequate diagnosis programs.

Seeing the picture more clearly

Susan Acho from the University of the Free State’s Department of Medical Physics, breast cancer research focuses on using mathematical methods to delineate and classify breast masses. Advancements in medical research have led to remarkable progress in breast cancer detection, however, according to Acho, the methods of diagnosis currently available commercially, lack a detailed finesse in accurately identifying the boundaries of breast mass lesions.

Inspiration drawn from pioneer

Drawing inspiration from the Mammography Computer Aided Diagnosis Development and Implementation (CAADI) project, which was the brainchild Prof William Rae, Head of the department of Medical Physics, Acho’s MMedSc thesis titled ‘Segmentation and Quantitative Characterisation of Breast Masses Imaged using Digital Mammography’ investigates classical segmentation algorithms, texture features and classification of breast masses in mammography. It is a rare research topic in South Africa.

 Characterisation of breast masses, involves delineating and analysing the breast mass region on a mammogram in order to determine its shape, margin and texture composition. Computer-aided diagnosis (CAD) program detects the outline of the mass lesion, and uses this information together with its texture features to determine the clinical traits of the mass. CAD programs mark suspicious areas for second look or areas on a mammogram that the radiologist might have overlooked. It can act as an independent double reader of a mammogram in institutions where there is a shortage of trained mammogram readers. 

Light at the end of the tunnel

Breast cancer is one of the most common malignancies among females in South Africa. “The challenge is being able to apply these mathematical methods in the medical field to help find solutions to specific medical problems, and that’s what I hope my research will do,” she says.

By using mathematics, physics and digital imaging to understand breast masses on mammograms, her research bridges the gap between these fields to provide algorithms which are applicable in medical image interpretation.

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