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Advancing Biogeochemistry Research at the UFS

12 November 2024 | Story Jacky Tshokwe | Photo Supplied

Dr Mariana Erasmus (Vice Director, CMBG) demonstrates some of the equipment in the newly established, state-of-the-art laboratories at the Centre for Mineral Biogeochemistry.

The University of the Free State (UFS) recently hosted a landmark event-the national launch of the South African Biogeochemistry Research Infrastructure Platform (BIOGRIP) - in the Centenary Complex on its Bloemfontein Campus. This significant occasion marked the establishment of the Centre for Mineral Biogeochemistry at the UFS and underscored South Africa’s growing commitment to biogeochemistry research.

Prof Anthea Rhoda welcomed the distinguished gathering of scientists, students, industry leaders, and stakeholders, highlighting the launch as a collaborative milestone in South Africa's scientific journey. In her address, Prof Rhoda emphasised the importance of the interdisciplinary nature of biogeochemistry, where biology, geology, and chemistry converge to offer insights into critical issues such as climate change, water quality, and soil health. She remarked on the necessity of collaboration, explaining that BIOGRIP’s platform, built on shared resources and expertise, exemplifies the power of uniting across institutional boundaries to accelerate impactful discoveries.

The programme featured insightful scientific talks by leading experts, each focusing on how biogeochemistry addresses key environmental issues such as sustainability and resource management. These presentations reinforced BIOGRIP’s commitment to advancing knowledge that can influence policy and improve practices.

Attendees were also given guided tours of the state-of-the-art laboratories in the Centre for Mineral Biogeochemistry, which provided a behind-the-scenes look at the advanced tools and methods employed in studying interactions between minerals, biology, and the environment. For many, this was a highlight, as they observed firsthand how biogeochemical research is conducted and contributes to soil health, pollution control, and environmental conservation.

The launch provided ample networking opportunities, fostering connections among academics, government representatives, industry professionals, and environmental organisations. Over a catered lunch, participants engaged in vibrant discussions about potential collaborations and the role of biogeochemistry in addressing South Africa’s environmental challenges.

The BIOGRIP national launch stands as a milestone event, not only for the UFS, but for the broader South African scientific community. With the establishment of this research platform, South Africa is well-positioned to tackle pressing environmental issues through innovative research and cross-sector collaboration. The event left attendees inspired and motivated, setting an optimistic tone for the future of biogeochemistry research in the region.

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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