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Faculty of Natural and Agricultural Sciences honours top graduates

14 April 2025 | Story Martinette Brits | Photo Kaleidoscope Studios

NAS Medal Winners — The four medal winners from the Faculty of Natural and Agricultural Sciences are from left: Christine Rossouw, Philippus Kotzé, Michail Cloete, and Jocelyne Smith.

At the University of the Free State (UFS) April graduation ceremonies, the Faculty of Natural and Agricultural Sciences proudly celebrated the success of 1484 graduates – each one marking a milestone of academic excellence. Among these achievements, four standout students were awarded top honours for their exceptional academic performance.

Jocelyne Smith graduated with a Bachelor of Science Honours in Data Science and received both the prestigious Senate Medal - awarded for the highest weighted average across all UFS faculties - and the Dean’s Medal for achieving the top results in a bachelor honours degree within the faculty.

Joining her in academic distinction were Christine Rossouw, Philippus Kotzé, and Michail Cloete, who each received a Dean’s Medal for outstanding results in their respective qualifications. Rossouw earned top marks in a three-year bachelor's degree, Kotzé in a four-year bachelor's degree, and Cloete for a master’s degree.

From setbacks to success: Jocelyne Smith’s unexpected path to excellence

Jocelyne Smith never intended to pursue Data Science. Her dream was to study medicine and make a meaningful difference in her community. However, when things did not go as planned, she found herself at a difficult crossroads. “I was devastated and unsure what to do next,” she recalls.

A timely suggestion from Prof Eduan Kotzé introduced her to Data Science – a field she had never considered but soon came to love. Now pursuing a master’s degree, Smith says receiving the Senate and Dean’s Medals was a complete surprise. “I just tried to do my best every day,” she says. “Receiving the medals is a reminder that even when life takes an unexpected turn, the destination can still be extraordinary.”

Her journey has been one of perseverance, long nights of study, and a commitment to community and helping others understand complex material. “Helping others deepened my own understanding and made the experience more meaningful,” she adds.

Looking ahead, Smith aims to harness Artificial Intelligence (AI) to revolutionise education in South Africa. “AI can make a real difference if used correctly - especially in education,” she explains. Her research focuses on challenging outdated systems and empowering individuals through innovative, practical technology.

Designing for impact: Michail Cloete’s award-winning architectural journey

For Michail Cloete, architecture is not just about buildings – it is about problem-solving and creating meaningful spaces. Inspired by his father’s work, he pursued architecture with clarity of purpose and deep-rooted passion.

“My academic success was driven by balance, consistency, and a genuine passion for impactful design,” he says. That mindset paid off, earning him the Dean’s Medal for best performance in a master’s degree.

Cloete views the medal not only as personal recognition but also as a tribute to those who supported him. “It reflects the collective effort – the love, support, and sacrifices of my family and friends,” he shares.

Looking forward, Cloete hopes to join an architectural firm that creates spaces with lasting impact, continuing a journey grounded in creativity, commitment, and thoughtful design.

Rooted in passion: Philippus Kotzé recognised for academic excellence

A deep love for farming and a growing interest in agriculture led Philippus Kotzé to pursue a degree in Animal Sciences. His approach to his studies was straightforward: “I went into the course to learn as much as I could. Good marks were just a welcome side-effect.”

Kotzé’s self-discipline, coupled with encouragement of classmates and lecturers, helped him navigate the demands of a four-year degree – resulting in the Dean’s Medal for academic excellence.

“There is a saying, ‘Vele hande maak ligte werk.’ For us, the lights were on for four straight years,” he jokes, crediting the collective effort of his support network for his success.

Now farming full-time, Kotzé aims to grow and diversify within the agricultural sector – bringing the same focused dedication to his career that defined his academic journey.

Bright minds, bold dreams: Christine Rossouw shines in science

Driven by a love for problem-solving and a fascination with how things work, Christine Rossouw found her perfect fit in the sciences. “I love experimenting and figuring things out,” she says. Her curiosity and determination helped her achieve top marks in a Bachelor of Science degree specialising in Chemistry and Physics, earning her the Dean’s Medal for the best results in a three-year bachelor’s degree.

Rossouw credits her success to maintaining a healthy balance. “Work hard, stay curious, and make time to recharge,” she advises. For her academic achievement is just the beginning - a stepping stone toward big ambitions, that include designing fireworks, advancing green energy, and improving plastic recycling.

Although the full weight of the award is still sinking in, Rossouw is already looking to the future – one that promises to be as bright as her ideas.

Words of wisdom: Emmie Pietersen’s message to graduates

Emmie Pietersen, Head of Strategy and Programme Development at Peritum Agri Institute, delivered a heartfelt message to graduates at all three sessions on Thursday, 10 April. Drawing from the lessons that continue to shape her own life, she urged graduates to embrace each day as a gift – a reminder that every moment presents both a chance and a choice.

“Your presence is your brand,” she said, encouraging graduates to carry themselves with both confidence and humility. True success, she explained, lies in the ability to prioritise, to plan with intention, foster meaningful partnerships, and persevere - because failure only happens when we stop trying.

In closing, she shared a powerful message she once gave to her son: “You were fearfully and wonderfully made. Grow your career with courage, but tread softly. Make us Kovsies proud.”

News Archive

Research by experts published in Nature

2011-06-02

The members of the research group are, from the left, front: Christelle van Rooyen, Mariana Erasmus, Prof. Esta van Heerden; back: Armand Bester and Prof. Derek Litthauer.
Photo: Gerhard Louw

A research article on the work by a team of experts at our university, under the leadership of Prof. Esta van Heerden, and counterparts in Belgium and the USA has been published in the distinguished academic journal Nature today (Thursday, 2 June 2011).

The article – Nematoda from the terrestrial deep subsurface of South Africa – sheds more light on life in the form of a small worm living under extreme conditions in deep hot mines. It was discovered 1,3 km under the surface of the earth in the Beatrix Goldmine close to Welkom and is the first multi-cellular organism that was found so far beneath the surface of the earth. The worm (nematode) was found in between a rock face that is between 3 000 and 12 000 years old.

The research can shed some new light on the possibility of life on other planets, previously considered impossible under extreme conditions. It also expands the possibilities into new areas where new organisms may be found.

These small invertebrates live in terrestrial soil subjected to stress almost for 24 hours They live through sunshine, rain, scorching temperatures and freezing conditions. Through time they developed a means to cope with harsh conditions. Terrestrial nematodes (roundworms, not to be confused or related to earthworms) are among those very tough small invertebrates that deal with those conditions everywhere. After insects they are the most dominant multi-cellular (metazoan) species on the planet having a general size of 0,5 to 1 mm and are among the oldest metazoans on the planet, Nature says in a statement on the article.

They inhabit nearly every imaginable habitat form the deep seas to the acid in pitcher . Some nematodes simply eat bacteria and these are the ones we study here. Terrestrial nematodes have developed a survival stage that can take them through hard times (absence of food, extreme temperatures, too little oxygen, crowding, and more).

At the head of the research was Prof. Gaetan Borgonie of the Ghent University in Belgium and a world leader in the discipline of nematode research. He was brought into contact with the South African research leader, Prof. Esta van Heerden, who set up a cooperation agreement with the University of Ghent and Prof. Borgonie. Prof. Van Heerden manages the Extreme Biochemistry group at the UFS and the research was funded by several research grants.

The search for worms began in earnest in 2007, but it was soon clear that the sampling strategy was insufficient. A massive sampling campaign in 2008-2009 in several mines led to the discovery of several nematodes and the new nematode species Halicephalobus mephisto. It is named after the legend of Faust where the devil, also known as the lord of the underworld is called Mephistopheles.

Nature says special filters had to be designed and installed on various boreholes. Unfortunately, there is no easy way of finding a magic formula and designs had to be adapted by trial and error; improving existing designs all the time. The work of the UFS Mechanical Workshop, which manufactured, adapted and helped design it, was crucial in this respect. Filters were left on the holes for varying periods, sometimes for a few hours and sometimes for months. Prof. Derek Litthauer from the UFS played a big role in sampling, filter designs and coming up with ideas for names for the new nematode with Prof. Borgonie.

Research showed that the nematodes can live in the deep for up to 12 000 years. Three students – Armand Bester, Mariana Erasmus and Christelle van Rooyen from the UFS – did the work on this.

The importance of multi-cellular animals living in the ultra-deep subsurface is twofold: The nematodes graze on the existing bacterial population and influence their turnover. Secondly, if more complex multi-cellular organisms can survive in the deep subsurface on earth, this may be good news when looking for life on other planets where the surface is considered too inhospitable (e.g. Mars). Complex life forms can be found in ecosystems previously thought to be uninhabitable. Nature says this expands the possibilities into new areas where new organisms may be discovered.

Future research will focus on selective boreholes to look for more metazoans, so that a better idea of the complexity of the ecosystems there can be obtained. It will also look for metazoans in the deep subsurface on other continents to determine similarities and differences.

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