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12 December 2019 | Story Rulanzen Martin | Photo Johan Roux
Dionne
Dr Dionne van Reenen received her PhD during the December Graduation Ceremonies at the UFS

Very seldom in modern history do we try to critically think about how our bodies and even more those of women are presented in modern popular culture. Through her PhD research project, Dionne van Reenen attempts to critically analyse ideological formations of the body in performance and its discursive distribution in the consumption of contemporary popular media, adding to existing literature and research on the topic.

Her dissertation is titled Performing the Erotic: (Re)presenting the Body in Popular Culture.

Van Reenen, a senior researcher at the Unit for Institutional Change and Social Justice at the University of the Free State (UFS), received her PhD qualification specialising in English on Wednesday 11 December 2019 during the final ceremony of the December Graduation.

Van Reenen has extensive experience in all areas of education. Her work at the Unit for Institutional Change and Social Justice is interdisciplinary, involving both everyday and institutional politics. She also holds a Master’s degree in Philosophy, which she obtained in 2013 from the UFS. In 2016, she chaired the UFS Language Policy Review Committee and established the Gender and Sexual Equity Office, which formulated the Sexual Harassment, Misconduct, and Violence Policy at the UFS. 

Changing of social constructs in media consumption

“My study focuses on performative framings of social constructs of gender, race, and class (along with size, age, and ability) in the ordering processes of society,” she says.  These performative framings in are in turn sustained by the (re)presentation of eroticised bodies in popular visual media in the 21st century. “These framings and orderings are critiqued as nothing new, but simply entertainment product that is trading in ideologies and stereotypes that have long been in sociocultural circulation, and they affect how people think, speak and act.” 

The study also shows that the dynamics of ‘virtuality’ and ‘visuality’ in the digital age are altering traditional demarcations of space, place, time, and community, and have paved the way for formations of global cultures that are, at the same time, informative, expedient, empowering, homogenising, prescriptive, and imperialising.

Whilst the #MeToo movement focused more on gender-based violence, gender inequality, and sexual violence, which are big social issues and do not exist in isolation, Van Reenen used her critical philosophical training to understand how, in the current era, the dominant discourse on representations of the body, particularly marginalised bodies, has been constructed at the popular level. 

With every PhD research dissertation the candidate’s main aim is to add new knowledge to a discipline. For Van Reenen, it is important that her research can contribute to a change in social and cultural constructs by re-imagining the (re)presentations of the body in popular media.

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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