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Homegrown excellence: Dr Nthatisi Nyembe shines in Parasitology Research

28 August 2025 | Story Godfrey Mabasa | Photo Kaleidoscope Studios

Dr Nthatisi Nyembe, a faculty member in the Department of Zoology and Entomology at the University of the Free State (UFS) Qwaqwa Campus, is making notable advancements in the field of parasitology. A native of Qwaqwa, Dr Nyembe embodies the potential for academic achievement within the community she serves, representing a commendable instance of homegrown talent.

A respected graduate of the UFS, Dr Nyembe completed her Bachelor of Science degree in Botany expeditiously before pursuing a Bachelor of Science Honours and Master of Science in Zoology, specialising in Parasitology, all on the UFS Qwaqwa Campus. Her postgraduate studies centred on evaluating medicinal plants for compounds with the potential to treat parasitic gastrointestinal nematodes in sheep – an area of significant importance for the sustained well-being of livestock.

Dr Nyembe broadened her academic horizons by earning a Doctor of Philosophy in Animal and Food Hygiene from the Obihiro University of Agriculture and Veterinary Medicine in Hokkaido, Japan. Her doctoral studies widened her scientific understanding and enhanced her expertise in the treatment of parasitic ailments.

Currently, her research focuses on the evaluation of naturally derived substances, synthesised compounds, and nanoscale particles for their potential efficacy in combating parasitic illnesses. Her broader research interests include pharmacological evaluation, the diagnosis and epidemiology of diseases transmissible from animals to humans, cell biology, and animal management, making her contributions essential to both human and veterinary medicine.

Her academic and research background is extensive. She has held research assistant positions at both the Obihiro University and the UFS, and she also concluded a postdoctoral fellowship at the North-West University in the North West province of South Africa.

Beyond her scholarly pursuits, Dr Nyembe engages in activities such as skiing, travelling, reading, and community involvement, reflecting a well-developed character and a commitment to creating a positive impact beyond the academic sphere.

With her international academic experience and firm local connections, Dr Nyembe continues to be a symbol of distinction, inspiring students and contributing to pioneering research that addresses practical challenges.

News Archive

Fracking in the Karoo has advantages and disadvantages

2012-05-25

Dr Danie Vermeulen
Photo: Leatitia Pienaar
25 May 2012

Fracking for shale gas in the Karoo was laid bare during a public lecture by Dr Danie Vermeulen, Director of the Institute for Groundwater Studies (IGS). He shared facts, figures and research with his audience. No “yes” or “no” vote was cast. The audience was left to decide for itself.

The exploitation of shale gas in the pristine Karoo has probably been one of the most debated issues in South Africa since 2011.

Dr Vermeulen’s lecture, “The shale gas story in the Karoo: both sides of the coin”, was the first in a series presented by the Faculty of Natural and Agricultural Science under the theme “Sustainability”. Dr Vermeulen is a trained geo-hydrologist and geologist. He has been involved in fracking in South Africa since the debate started. He went on a study tour to the USA in 2011 to learn more about fracking and he visited the USA to further his investigation in May 2012.

Some of the information he shared, includes:

- It is estimated that South Africa has the fifth-largest shale-gas reserves in the world, following on China, the USA, Argentina and Mexico.
- Flow-back water is stored in sealed tanks and not in flow-back dams.
- Fracturing will not contaminate the water in an area, as the drilling of the wells will go far deeper than the groundwater aquifers. Every well has four steel casings – one within the other – with the gaps between them sealed with cement.
- More than a million hydraulic fracturing simulations took place in the USA without compromising fresh groundwater. The surface activities can cause problems because that is where man-made and managerial operations could cause pollution.
- Water use for shale-gas exploration is lower than for other kinds of energy, but the fact that the Karoo is an arid region makes the use of groundwater a sensitive issue. Dr Vermeulen highlighted this aspect as his major concern regarding shale-gas exploration.
- The cost to develop is a quarter of the cost for an oil well in the Gulf of Mexico.
- Dolerite intrusions in the Karoo are an unresearched concern. Dolerite is unique to the South African situation. Dolerite intrusion temperatures exceed 900 °C.

He also addressed the shale-gas footprint, well decommissioning and site reclamation, radio activity in the shale and the low possibility of seismic events.

Dr Vermeulen said South Africa is a net importer of energy. About 90% of its power supply is coal-based. For continued economic growth, South Africa needs a stable energy supply. It is also forecast that energy demand in South Africa is growing faster than the average global demand.

Unknowns to be addressed in research and exploration are the gas reserves and gas needs of South Africa. Do we have enough water? What will be the visual and social impact? Who must do the exploration?

“Only exploration will give us these answers,” Dr Vermeulen said.

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