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10 November 2023 | Story Ouma Ngoepe | Photo SUPPLIED
Liezl Geldenhuys (ZZ2), Mellisa Pringle (Lasec), Ouma Ngoepe (CMBG), Prof Maryna de Wit (SFSD), Dr Mariana Erasmus (CMBG), Bernadine Taljaard (ZZ2), Khezwo Nematshema (SFSD), Shahiëda Cloete (SFSD), Jan Andries Viktor (SFSD), Vuyelwa Nkoi (SFSD).
Liezl Geldenhuys (ZZ2), Mellisa Pringle (Lasec), Ouma Ngoepe (CMBG), Prof Maryna de Wit (SFSD), Dr Mariana Erasmus (CMBG), Bernadine Taljaard (ZZ2), Khezwo Nematshema (SFSD), Shahiëda Cloete (SFSD), Jan Andries Viktor (SFSD), Vuyelwa Nkoi (SFSD).

The Centre for Mineral Biogeochemistry (CMBG) at the University of the Free State (UFS) was part of another successful Tritech National Science and Technology Fair 2023 – an exciting STEM (Science, Technology, Engineering, and Mathematics) research competition.

The UFS has partnered with Tritech and other sponsors since 2021 to bridge the gap between high school and tertiary education. Tritech, which started in 2008 and is open to all Grade 7-12 learners, aims to equip them for tertiary education by introducing them to scientific research and incorporating modern technology in research. This is an annual competition that starts at the regional level and goes all the way to the national level, with the national competition held at the Merensky High School, in Tzaneen, Limpopo from 20-21 October 2023.

Schools from across the country take part in the fair, but learners compete in groups rather than schools. 

Every year the Tritech Nationals are divided into four main activities over the weekend: 
  1. On the Friday afternoon the learners present their STEM projects in which they have identified a problem in a community, do research to find a solution, do experiments to test if the solution will solve the problem, then test the solution in the community, and lastly, present their findings to a group of judges and learners in similar fields. Fields include Life Sciences, Engineering and Design, Maths, Science and Technology, Environmental and Social Sciences, Health Sciences and Agricultural Sciences.
  2. Friday evening is usually a fun activity for the learners.
  3. On Saturday morning the learners are exposed to work-related activities that give them insight into professions they could pursue in the science field. This activity is sponsored and presented by the UFS. 
  4. The last activity of the weekend is the prize-giving on Saturday afternoon where the learners get rewarded for the quality of their projects and honour, celebrate, and encourage excellence. 

“Every year the CMBG includes different departments from the UFS in alignment with the theme for the event, to ignite a lasting passion for innovation toward promising careers in the STEM fields. In 2022 the theme for Tritech was “Crime Scene Investigators” and the CMBG team created a very realistic crime scene and laboratory setup to teach the learners about Forensic Science. The learners scored our CSI activity as the best for the weekend and we knew that for the 2023 Nationals, we had our work cut out to do even better,” says Dr Erasmus. 

Learning about food health and safety

This year, Prof Maryna de Wit and her students from the Department of Sustainable Food Systems and Development (SFSD) joined the CMBG team, to introduce learners to food health and safety, food preservation, food systems and development, as well as sensory analyses. 

Island, shipwrecks, and wilderness survival

Dr Mariana Erasmus, Deputy Director of the Centre for Mineral Biogeochemistry (CMBG), spearheads the Tritech team from the UFS. CMBG, as part of its community outreach programme, is not only a sponsor of the event but is also the organiser of the main activity together with another UFS department. 

Dr Erasmus says the theme for Tritech 2023 was “Survival MasterChef”, where for the two activity events, the Tritech learners were “stranded” on an island. This exercise was a great way to promote leadership qualities, encourage creativity and confidence, promote teamwork and active communication, and increase critical thinking in learners, while they got to know more about food health and safety practices.

“It was all island, shipwrecks, and wilderness survival at this year’s event where learners had to survive after being ‘stranded’ on an island. To escape, the learners had to build a boat and while they waited to be rescued, they needed to adapt to island life to survive by preparing healthy meals, as well as preparing meals and drinks to treat dehydration and scurvy,” says Dr Erasmus. 

“During the prize-giving, some of the learners received shadowing opportunities at the UFS and other sponsors to advance their education. Bronze, silver, and gold medals, together with participation certificates, were awarded to other deserving learners.” 

News Archive

UFS cardiologists and surgeons give children a beating heart
2015-04-23

Photo: René-Jean van der Berg

A team from the University of the Free State School for Medicine work daily unremittingly to save the lives of young children who have been born with heart defects by carrying out highly specialised interventions and operations on them. These operations, which are nowadays performed more and more frequently by cardiologists from the UFS School of Medicine, place the UFS on a similar footing to world-class cardiology and cardio-thoracic units.

One of the children is seven-month-old Montsheng Ketso who recently underwent a major heart operation to keep the left ventricle of her heart going artificially.

Montsheng was born with a rare, serious defect of the coronary artery, preventing the left ventricle from receiving enough blood to pump to the rest of the body.

This means that the heart muscle can suffer damage because these children essentially experience a heart attack at a very young age.

In a healthy heart, the left ventricle receives oxygenated blood from the left atrium. Then the left ventricle pumps this oxygen-rich blood to the aorta whence it flows to the rest of the body. The heart muscle normally receives blood supply from the oxygenated aorta blood, which in this case cannot happen.

Photo: René-Jean van der Berg

“She was very ill. I thought my baby was going to die,” says Mrs Bonizele Ketso, Montsheng’s mother.

She says that Montsheng became sick early in February, and she thought initially it was a tight chest or a cold. After a doctor examined and treated her baby, Montsheng still remained constantly ill, so the doctor referred her to Prof Stephen Brown, paediatric cardiologist at the UFS and attached to Universitas Hospital.

Here, Prof Brown immediately got his skilled team together as quickly as possible to diagnose the condition in order to operate on Montsheng.

During the operation, the blood flow was restored, but since Montsheng’s heart muscle was seriously damaged, the heart was unable to contract at the end of the operation. Then she was coupled to a heart-lung machine to allow the heart to rest and give the heart muscle chance to recover. The entire team of technologists and the dedicated anaesthetist, Dr Edwin Turton, kept a vigil day and night for several days.

Prof Francis Smit, chief specialist at the UFS Department of Cardiothoracic Surgery, explains that without this operation Montsheng would not have been able to celebrate her first birthday.

“After the surgery, these children can reach adulthood without further operations. Within two to three months after the operation, she will have a normal active life, although for about six months she will still use medication. Thereafter, she will be tiptop and shortly learn to crawl and walk.”

Mrs Ketso is looking forward enormously to seeing her daughter stand up and take her first steps. A dream which she thought would never come true.    

“Write there that I really love these doctors.”

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