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UFS implements interventions to increase diversity of researchers

03 January 2022 | Story André Damons | Photo Supplied

Seven supported academics from the Afromontane Research Unit (ARU) on the Qwaqwa Campus saw an increase in their H-indices (Google Scholar) during 2020.

Over the past few years, the university has implemented special interventions to increase the diversity of UFS researchers, including targeted appointments and focused research capacity development and support. Strategic interventions relating to National Research Foundation (NRF) rating resulted in the UFS having a well-established cohort of rated researchers.

According to the recent internal research report, the UFS has 144 researchers in the A, B and C categories (established according to NRF criteria), and 57 researchers under the age of 40 who are considered emerging researchers in the P and Y categories. This brings the total to 201 rated researchers in 2021, compared to 188 in 2020, and 164 in 2019. The university also has 57 Y-rated researchers.

Furthermore, the university submitted 51 applications to the NRF under the 2020 rating call, including 21 first-time applications (of which four were unsuccessful) and 26 who were invited to reapply to keep their ratings active (of which all were successful).

Prof Corli Witthuhn, Vice-Rector: Research and Internationalisation, says the UFS has been able to appoint outstanding young researchers over the past eight years. “Not only did these exceptional individuals contribute to our scholarship and research productivity, but they also increased our diversity. The increase in the diversity of our NRF-rated academics is an aspect of the research portfolio that I am most proud of,” says Prof Witthuhn.

Highlighted trends regarding NRF-rated researchers

• There has been a constant growth in the number of rated researchers, from 127 in 2016 to 202 in 2021.
• The majority of NRF-rated researchers (186 in 2021) are from the Bloemfontein Campus. The number of rated researchers from the Qwaqwa Campus increased from 4 in 2016 to 13 in 2021. The South Campus increased its number of rated researchers by two in 2021, with a current total of three rated researchers.
• The Faculty of Natural and Agricultural Sciences has the highest percentage of rated researchers (45%) in 2021, followed by the Faculty of the Humanities (29%).
• The percentage of rated white researchers declined from 92% in 2016 to 78% in 2021, and the rated black researchers increased from 6% in 2016 to 17% in 2021.
• The percentage of rated female researchers increased from 27% in 2016 to 34% in 2021.
• Rated researchers in the C2 and C3 rating categories declined slightly, from 52% in 2019 to 47% in 2021. There is still positive growth in the number of young (Y1/Y2) rated researchers – from 14% in 2016 to 27% in 2021.

Ratings and promotions

The university hosts a total of six South African Research Chairs (SARChI) funded by the NRF / Department of Science and Innovation (DSI), of which four are held by women. Three chairs are appointed in the Faculty of Natural and Agricultural Sciences and the Faculty of Education, while the faculties of Economic and Management Sciences and Health Sciences appointed one chair each. Two research chairs have been renewed for 2021-2025.

Seven supported academics from the Afromontane Research Unit (ARU) on the Qwaqwa Campus saw an increase in their H-indices (Google Scholar) during 2020, while one new Y1 NRF rating was awarded and another was increased to C2 level. Two ARU-supported academics achieved professorial status in the same year.

Twenty-five young academics on the cusp of NRF rating and promotion to the rank of Associate Professor are participating in the Future Professoriate Mentoring Programme, while the 25 participants of the ESAP group have completed their doctorates over the past three years and are working towards obtaining a Y-rating. As a result of the outstanding progress of the first cohort of the mentoring programme during 2020, a second cohort of ESAP scholars was selected in March 2021. More than 80% of the 75 group members are younger than 40 years.

Drs Frans Kruger and Lodewyk Sutton also received NRF Y-ratings in November 2020. The ESAP programme currently has three recipients of the FirstRand NRF Black African Advancement Fellowship Programme: Dr Eugene Baron (Practical Theology), Dr Mirriam Moleko (School of Mathematics and Science Education), and Dr Neo Pule (Psychology). Dr Lizemari Hugo from the School of Nursing also received a FAIMER (Foundation for Advancement of International Medical Education and Research) fellowship. Dr Mikateko Höppener (Centre for Development Support) has been selected to participate in the national DHET Future Professoriate Programme.

Publication output units show significant increase

The publication output units (books, conference proceedings, and journal articles) by UFS researchers, as measured and reported to the Department of Higher Education and Training (DHET), show consistent growth from 2016 to 2020. The output units increased significantly in 2019 and 2020 after a slight decrease in 2017.

There has also been a notable increase in books/chapters since 2018. Journal articles also showed constant growth from 2017 onwards, especially from 2019 to 2020, with a 20% growth in journal outputs visible; however, conference proceedings declined last year.

Main contributors

The faculties of Natural and Agricultural Sciences, the Humanities, and Theology and Religion remain the main contributors to the university’s publication output. Four faculties (Economic and Management Sciences, Education, Health Sciences, and Theology and Religion) increased their share of units in 2020 compared to the 2016-2019 period.

The journal output units generated from scholarly articles published in internationally indexed journals remained more than 80% (82% in 2017, 85% in 2018, 81% in 2019, and 85% in 2020). Only 15% of journal articles were published in South African indexed (DHET) journals (compared to 24% in 2016). Since 2016, there has been a clear shift towards publications in internationally indexed journals.

The following nine in-house journals are being administered by the UFS:

Acta Academica (editor: Henning Melber), Acta Structilia (editor: K Kajimo-Shakantu), Acta Theologica (editor: Jan-Albert van den Berg), Communitas (editor: Willemien Marais), Journal for Juridical Science (editor: Bradley Smith), Journal for Translation Studies in Africa (editor: Kobus Marais), Perspectives in Education (editor: Jan Nieuwenhuis), Southern Journal for Contemporary History (editor: Neil Roos), and Town and Regional Planning (editor: Maléne Campbell).

All are DHET-accredited, except for the Journal for Translation Studies in Africa, a new KovsieJournals title.

News Archive

Research eradicates bacteria from avocado facility

2017-01-17

Listeria monocytogenes as seen under an electron
microscope. The photo was taken with a transmission
electron microscope at the microscopy unit of the UFS.
Bacteriophages (lollipop-like structures) can be seen
next to the bacterial cells.
Photo: Supplied

“The aim of my project was to identify and characterise the contamination problem in an avocado-processing facility and then to find a solution,” said Dr Amy Strydom, postdoctoral fellow in the Department of Microbial Biochemical and Food Biotechnology at the University of the Free State (UFS).

Her PhD, “Control of Listeria monocytogenes in an Avocado-processing Facility”, aimed to identify and characterise the contamination problem in a facility where avocados were processed into guacamole. Dr Strydom completed her MSc in food science in 2009 at Stellenbosch University and this was the catalyst for her starting her PhD in microbiology in 2012 at the UFS. The research was conducted over a period of four years and she graduated in 2016. The research project was funded by the National Research Foundation.

The opportunity to work closely with the food industry further motivated Dr Strydom to conduct her research. The research has made a significant contribution to a food producer (avocado facility) that will sell products that are not contaminated with any pathogens. The public will then buy food that is safe for human consumption.

What is Listeria monocytogenes?

Listeria monocytogenes is a food-borne pathogenic bacterium. When a food product is contaminated with L. monocytogenes, it will not be altered in ways that are obvious to the consumer, such as taste and smell. When ingested, however, it can cause a wide range of illnesses in people with impaired immune systems. “Risk groups include newborn babies, the elderly, and people suffering from diseases that weaken their immune systems,” Dr Strydom said. The processing adjustments based on her findings resulted in decreased numbers of Listeria in the facility.

The bacteria can also survive and grow at refrigeration temperatures, making them dangerous food pathogens, organisms which can cause illnesses [in humans]. Dr Strydom worked closely with the facility and developed an in-house monitoring system by means of which the facility could test their products and the processing environment. She also evaluated bacteriophages as a biological control agent in the processing facility. Bacteriophages are viruses that can only infect specific strains of bacteria. Despite bacteriophage products specifically intended for the use of controlling L. monocytogenes being commercially available in the food industry, Dr Strydom found that only 26% of the L. monocytogenes population in the facility was destroyed by the ListexP100TM product. “I concluded that the genetic diversity of the bacteria in the facility was too high and that the bacteriophages could not be used as a control measure. However, there is much we do not understand about bacteriophages, and with a few adjustments, we might be able to use them in the food industry.”

Microbiological and molecular characterisation of L. monocytogenes

The bacteria were isolated and purified using basic microbiological culturing. Characterisation was done based on specific genes present in the bacterial genome. “I amplified these genes with polymerase chain reaction (PCR), using various primers targeting these specific genes,” Dr Strydom said. Some amplification results were analysed with a subsequent restriction digestion where the genes were cut in specific areas with enzymes to create fragments. The lengths of these fragments can be used to differentiate between strains. “I also compared the whole genomes of some of the bacterial strains.” The bacteriophages were then isolated from waste water samples at the facility using the isolated bacterial strains. “However, I was not able to isolate a bacteriophage that could infect the bacteria in the facility.

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