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29 October 2024 | Story André Damons | Photo Supplied
NRF Researchers 2024
First NRF rating: From top left: Dr Andronicus Akinyelu, Lecturer in the Department of Computer Science and Informatics, received his first Y2 rating, Dr Monique de Milander, Senior Lecturer in the Department of Exercise and Sport Sciences, obtained a C3 rating, while Dr Calvin D. Ullrich, Senior Lecturer in Interdisciplinary Theology: Historical and Constructive Theology, obtained a Y1 rating. Bottom left: Prof Maria Tsakeni, Associate Professor in the School of Mathematics, Natural Sciences, and Technology Education, Prof Matildie Wium, Associate Professor in the Odeion School of Music, and Dr Weldemichael Tesfuhuney, a senior lecturer in the Department of Soil, Crop, and Climate Sciences, all obtained a C2 rating.

The list of National Research Foundation (NRF)-rated researchers at the University of the Free State (UFS) is growing, with 22 researchers recently receiving their first NRF rating, and 14 others obtaining new ratings after re-evaluation. This list is expected to grow even more with results slowly filtering in.

Profs Jan van der Watt, Research Fellow in the Department of Old and New Testament Studies, and Felicity Burt from the Division of Virology and SARChI Research Chair in vector-borne and zoonotic pathogens, are the latest NRF B1 rated researchers. While this is Prof Van der Watt’s first NRF rating, Prof Burt has increased her NRF rating from B3 to B1. The UFS now has 10 B1 rated researchers.

In addition to the new rating of Profs Burt and Van der Watt, the UFS also boasts seven new C1 rated researchers, 14 new C2s, five new C3s, seven new Y2s and one Y1 and B3 rated researchers respectively.

Among the researchers who obtained their first NRF ratings are Dr Bimo Abraham Nkhata, Senior Lecturer at the Centre for Environmental Management; Dr Yolandi Schoeman, Senior Lecturer in the Centre for Mineral Biogeochemistry; and Dr Angélique Lewies, Senior Lecturer in the Department of Cardiothoracic Surgery, who has this year been nominated for the prestigious 2023/2024 NSTF-South32 Awards, popularly known as the “Science Oscars” of South Africa. Dr Nkhata obtained a NRF rating in the C2 category, while both Drs Schoeman and Lewies obtained a Y2 rating.

An honour to be among rated researchers

Other researchers who obtained their first NRF rating include Dr Monique de Milander, Senior Lecturer in the Department of Exercise and Sport Sciences, who obtained a C3 rating and Prof Maria Tsakeni, Associate Professor in the School of Mathematics, Natural Sciences, and Technology Education, who received a C2 rating.

Dr De Milander, a Kinderkineticist who works with the motor development of young children, says she was very surprised to obtain a C3 rating. “I feel honoured receiving this NRF rating. To know that other researchers are reading my work and finding it relevant. It takes a lot of dedication and patience, since this is an endurance race and not a sprint. You need to work many hours, read a lot of new articles and write the articles themselves.

“In addition, collecting the data is not always possible without the assistance of our students at the Department of Exercise and Sport Sciences as fieldworkers. I would like to acknowledge them because without them my research projects would not always be feasible. Furthermore, the publication process is also timeous, thus a lot of time elapses before you start to see the results of your work,” explains Dr De Milander.

According to her, the current project for her NRF rating is the assessment of motor development, attentional deficit hyperactive disorder, anthropometry and academic performance in low- and high-socio-economic primary school learners in Mangaung.

Prof Tsakeni, whose research focuses on the design and implementation of innovative instructional strategies and curriculum innovations in science classrooms, says she is honoured to be among the rated researchers. “The recognition motivates me to continue pushing myself to climb the ladder of rated researchers. The rating makes me feel affirmed to continue with my research work. I am grateful to the Faculty of Education, the UFS, and the NRF for giving me the opportunity and support.”

She would like to upscale the impact of her research by engaging in large-scale studies, international comparative studies, international collaborations, and one day, be a visiting scholar at some prestigious universities.

“The innovations in science classrooms include integrating inquiry-based practical work, education for sustainable development (ESD) and STEM education. The instructional strategies include inquiry-based learning and integrating educational technologies in the classrooms,” says Prof Tsakeni.

Recognition for long-term academic work

Newly C2 rated researcher, Dr Weldemichael Tesfuhuney, a senior lecturer in the Department of Soil, Crop, and Climate Sciences, says: “As an agrometeorologist by profession, I feel a profound mix of pride and motivation after receiving NRF-rating recognition for my long-term academic work.

“This acknowledgment validates my years of dedication in understanding the intricate relationship between meteorology and agriculture. It boosts my confidence and reaffirms my commitment to advancing my academic and research goals.

“Such recognition is a pivotal moment for me; it serves as a powerful reminder of the impact of my research on agricultural practices, particularly in addressing the challenges posed by climate change in arid and semi-arid regions.”

Dr Tesfuhuney, whose research deepens understanding of how meteorological patterns affect agricultural practices, making a significant contribution to the field of Agrometeorology, has established a robust research portfolio focused on the challenges of meteorology and agriculture in arid and semi-arid regions. He has spearheaded several long-term research initiatives, including In-field Rainwater Harvesting (IRWH) techniques, intercropping practices, micrometeorology, and crop modelling simulations, all aimed at improving crop productivity for smallholder farming communities in rural areas.

Currently, Dr Tesfuhuney is expanding his research on underutilised crops in the region, focusing on how these crops can help smallholder farmers adapt to the impacts of climate change while improving nutritional security.

Work on the right track

Dr Calvin D. Ullrich, Senior Lecturer in Interdisciplinary Theology: Historical and Constructive Theology, who obtained a Y1 rating, says though there is much talk in South African academia about the necessity of an NRF rating which is not always positive (at least in the broader humanities), the NRF does have its strengths.

“I think it pushes one to critically consider one’s work as a whole; to reflect on its current shape and to identify lacuna within a broader trajectory. There is something generative about this process in and of itself. Feelings of relief but also of affirmation then: a rigorous peer-review system which acts as a metric, according to which one might be able to say, ‘my work is somehow on the right track’ — I think there is certainly value in that.”

According to Dr Ullrich, pursuing your research and making critical interventions into your field, means the rating can follow as a necessary consequence. Research for him, he continues, like most academics, is deeply personal and exhilarating, and so acquiring the rating can also be seen as just another internal aspect of the research process as opposed to being contingent to it.

He has several research projects currently in the research pipeline including smaller writing projects relating to eco-phenomenology and eco-theology and political theology in South Africa. A larger project, scheduled to begin later next year and continuing for the next three years (2025-2028), involves a more intense investigation of the social dimensions of ‘affects’ and how this could be deployed within the specific social context of faith communities.

It’s humbling

For Prof Matildie Wium, Associate Professor in the Odeion School of Music, her first C2 rating is not only an honour for her contribution to her field, but also a humbling moment, because the experience of applying for a rating makes clear how much room remains for growth.

Her research has two main focus areas: (a) 20th-century South African art music, studied from an analytical-hermeneutic perspective, and (b) the musical practices and experiences of mid-19th-century female opera singers in London, studied by means of archival documents.

“I am currently working on converting conference papers I had delivered recently into articles, mainly on the South African art music side of my endeavours. There are papers about Mimi Coertse (in collaboration with my colleague Dr Albertus Engelbrecht), Hubert du Plessis’s Opus 24 (in collaboration with my past student Dr Melissa Gerber), and Michael Mosoeu Moerane’s tone poem Fatshe la Heso under development.

“I am also co-writing a paper analysing some items from ethnomusicologist Gerhard Kubik’s archive of Àló (Yoruba storytelling) with my colleague Dr Joseph Kunnuji,” says Prof Wium.

Dedication, resilience, and strategic focus

Dr Andronicus Akinyelu, Lecturer in the Department of Computer Science and Informatics, called his first Y2 rating incredibly rewarding as it reaffirms his hard work and perseverance have not been in vain. “It also serves as a great source of motivation for me to continue pushing boundaries and striving for excellence in my academic and research pursuits. I am deeply grateful to God for this achievement. I am delighted to have been successful. It is an important milestone in my academic journey,” he says.

According to him, achieving an NRF rating requires a combination of dedication, resilience, and strategic focus. It involves publishing high-quality research in top-tier journals, supervising postgraduate students, and contributing significantly as a first or corresponding author on various projects.

“My research spans multiple cutting-edge areas, including machine learning, deep learning, computer vision, medical diagnosis, sustainable agriculture, and responsible artificial intelligence (AI). Currently, I’m collaborating with international researchers to develop deep-learning techniques that predict treatment responses in cancer patients.

“This research has the potential to significantly advance personalised medicine by enabling more accurate and timely interventions. Additionally, I am deeply committed to promoting responsible AI by developing frameworks and models that prioritise ethics in AI systems,” says Dr Akinyelu.

Prof Vasu Reddy, Deputy Vice-Chancellor of Research and Internationalisation says: “Congratulations to all our newly rated researchers. We are expecting more in the coming months as the results of applications slowly filter in. We are extremely proud of our rated researchers for the recognition they have received. This is in large part the result of their contribution to producing high-quality research. There are many benefits that accrue to our researchers who are rated, namely an investment in their scholarship, including UFS support, as well as opportunities to further enhance their academic trajectory.”

Other researchers who obtained their first NRF rating: 

  • Dr Ernie Langner (Department of Chemistry, C2)
  • Prof Danrè Strydom (Odeion School of Music, C3) 
  • Prof Lizemari Hugo (School of Nursing, Y2)
  • Prof V.R Clark (Director: Afromontane Research Unit, C1) 
  • Dr Clement Masakure (Department of History, C2)
  • Prof Mariette Reyneke (Department of Public Law, C2)
  • Dr Soumya Ghosh (Department of Genetics, C3)
  • Prof Patricks V Otomo (Department of Zoology and Entomology, C2)
  • Dr Tafadzwa Maramura (Department of Public Administration and Management, Y2)
  • Dr Yibeltal Terefe (Department of Mathematics and Applied Mathematics, C3)
  • Dr Bianca Naude (Department of Political Studies and Governance, Y2)
  • Dr Andronicus Akinyelu (Department of Computer Science and Informatics, Y2)
  • Dr Sogo Abolarin (Office of the Dean: Natural Sciences, Y2)

Researchers who obtained a new rating after re-evaluation: 

  • Prof Carlien Pohl-Albertyn (Microbiology and Biochemistry, went from a C2 to C1 rating)
  • Dr Kate Law (International Studies Group, C1 previously Y1)
  • Prof Paul Fouche (Department Psychology, C1 previously C3)
  • Prof Michelle Engelbrecht (Centre for Health Systems Research & Development, went from C3 to C2)
  • Dr Joseph Sempa (Department of Biostatistics, C3 previously Y2)
  • Prof Oliver Nyambi (Department of English, went from Y1 to C1)
  • Dr Marianne Conradie-Bekker (Department of Chemistry, went from Y2 to C2)
  • Dr Marieka Gryzenhout (Department of Genetics, C1 previously C2)
  • Prof Martin Nyaga (Next Generation Sequencing (NGS) Unit, previously held a Y2 now a B3)
  • Prof Botma Visser (Plant Sciences, went from C2 to C1)
  • Prof Kobus Schoeman (Practical and Missional Theology, went from C3 to C2)
  • Prof Louise Van Den Berg (Nutrition and Dietetics, C3 to C2)
  • Prof Christoph Gauert (Geology, went from C3 to C2) 

News Archive

UFS physicists publish in prestigious Nature journal
2017-10-16

Description: Boyden Observatory gravitational wave event Tags: Boyden Observatory, gravitational wave event, Dr Brian van Soelen, Hélène Szegedi, multi-wavelength astronomy 
Hélène Szegedi and Dr Brian van Soelen are scientists in the
Department of Physics at the University of the Free State.

Photo: Charl Devenish

In August 2017, the Boyden Observatory in Bloemfontein played a major role in obtaining optical observations of one of the biggest discoveries ever made in astrophysics: the detection of an electromagnetic counterpart to a gravitational wave event.
 
An article reporting on this discovery will appear in the prestigious science journal, Nature, in October 2017. Co-authors of the article, Dr Brian van Soelen and Hélène Szegedi, are from the Department of Physics at the University of the Free State (UFS). Both Dr Van Soelen and Szegedi are researching multi-wavelength astronomy.
 
Discovery is the beginning of a new epoch in astronomy
 
Dr van Soelen said: “These observations and this discovery are the beginning of a new epoch in astronomy. We are now able to not only undertake multi-wavelength observations over the whole electromagnetic spectrum (radio up to gamma-rays) but have now been able to observe the same source in both electromagnetic and gravitational waves.”
 
Until recently it was only possible to observe the universe using light obtained from astronomical sources. This all changed in February 2016 when LIGO (Laser Interferometer Gravitational-Wave Observatory) stated that for the first time they had detected gravitational waves on 14 September 2015 from the merger of two black holes. Since then, LIGO has announced the detection of two more such mergers. A fourth was just reported (27 September 2017), which was the first detected by both LIGO and Virgo. However, despite the huge amount of energy released in these processes, none of this is detectable as radiation in any part of the electromagnetic spectrum. Since the first LIGO detection astronomers have been searching for possible electromagnetic counterparts to gravitational wave detections. 
 
Large international collaboration of astronomers rushed to observe source
 
On 17 August 2017 LIGO and Virgo detected the first ever gravitational waves resulting from the merger of two neutron stars. Neutron star mergers produce massive explosions called kilonovae which will produce a specific electromagnetic signature. After the detection of the gravitational wave, telescopes around the world started searching for the optical counterpart, and it was discovered to be located in an elliptical galaxy, NGC4993, 130 million light years away. A large international collaboration of astronomers, including Dr Van Soelen and Szegedi, rushed to observe this source.
 
At the Boyden Observatory, Dr Van Soelen and Szegedi used the Boyden 1.5-m optical telescope to observe the source in the early evening, from 18 to 21 August. The observations obtained at Boyden Observatory, combined with observations from telescopes in Chile and Hawaii, confirmed that this was the first-ever detection of an electromagnetic counterpart to a gravitational wave event. Combined with the detection of gamma-rays with the Fermi-LAT telescope, this also confirms that neutron star mergers are responsible for short gamma-ray bursts.  
 
The results from these optical observations are reported in A kilonova as the electromagnetic counterpart to a gravitational-wave source published in Nature in October 2017.
 
“Our paper is one of a few that will be submitted by different groups that will report on this discovery, including a large LIGO-Virgo paper summarising all observations. The main results from our paper were obtained through the New Technology Telescope, the GROND system, and the Pan-STARRS system. The Boyden observations helped to obtain extra observations during the first 72 hours which showed that the light of the source decreased much quicker than was expected for supernova, classifying this source as a kilonova,” Dr Van Soelen said.

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