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11 July 2023 | Story André Damons | Photo Supplied
Dr Mirriam Moleko
Dr Mirriam Moleko, a lecturer in the Department of Mathematics, Natural Sciences, and Technology Education in the UFS Faculty of Education, participated in the National Research Foundation’s Black Academics Advancement Programme fellowship and got the opportunity to visit universities and schools in the USA for three weeks.

After completing the National Research Foundation’s Black Academics Advancement Programme (BAAP) fellowship, a lecturer from the University of the Free State (UFS) now wants to train more teachers on issues of access and inclusivity in different mathematics settings. She also wants to establish a centre for access and inclusivity to promote quality teaching that caters to a diverse learner population.

Dr Mirriam Moleko, a lecturer in the UFS’s Department of Mathematics, Natural Sciences, and Technology Education in the Faculty of Education, participated in the BAAP fellowship, an initiative of the National Research Foundation (NRF) and the FirstRand Foundation (FRF), from 2021 to 2022. She also got the opportunity to visit universities and schools in the USA for three weeks.

Supporting emerging academics

Dr Moleko says the BAAP is a prestigious NRF programme which supports well-structured research projects with achievable aims, sound methodologies, and demonstrated prudent use of funds. The programme supports emerging academics to ensure that they develop strong research skills, collaborate with prolific scholars in their fields, visit other universities abroad, give public lectures, and attend international conferences to establish an international footprint.

“The programme allows the candidates awarded the grant to focus on research for two years” she says. “I managed to run my teacher community research project successfully during this period. My goal as an academic and a researcher is to produce work that teachers can relate to and be able to apply in their profession. I have always aspired to empower teachers to be knowledgeable and resourceful”.

“Furthermore, my goal is to strive to partake in critical conversations that are taking place within the mathematics education field, and to contribute my skills and knowledge in addressing the existing challenges, thus being part of the solution. I believe the skills that I have gained on how to conduct quality research will assist me in achieving my goals,” she added.

Benefit from funding

During the period of her fellowship she learned about forming partnerships and collaborating with other scholars in her field, which she believes is an important skill to possess as a developing scholar.

Dr Moleko says the programme played a pivotal role in the attainment of numerous significant accomplishments in her professional career thus far. She also benefitted in terms of funding, which helped her undertake autonomous research and advanced training in her area of expertise, as well as facilitated engagement in collaborative research ventures with esteemed professionals and researchers, both domestically and abroad.

“The research leave that I got enabled me to successfully conceptualise, strategise, and implement a research endeavour that yielded a more profound comprehension of the research gap that I had identified within the teacher community, thus culminating in multiple publications in esteemed periodicals.

“The NRF-BAAP funding also enabled me to undertake training, thereby refining my skill set and augmenting my comprehension of intricate principles. The experience proved to be a crucial factor in my vocational growth and bolstered my aptitude for scholarly inquiry. It also afforded me the chance to engage in mentoring endeavours for fledgling researchers.”

Transformation of the Professoriate Mentoring Programme

Dr Moleko, who is part of the UFS Transformation of the Professoriate Mentoring Programme, says this programme is an excellent initiative which is aimed at preparing young academics for future promotions and offering them skills to be competitive. The programme’s goals include building strong academics who will follow in the footsteps of the university’s current leaders.

She says the programme is critical in supporting young academics by connecting them with seasoned mentors and scholars from various fields of study. It is essential for young academics in terms of maximising their learning, expanding their network, and gaining opportunities to help facilitate their growth.

“I see the programme as a catalyst for change necessary for the university to realise the desired results,” Dr Moleko says.

During her visit to the USA she spent two weeks at Boston College and the University of Rhode Island, and also visited the Center for Applied and Specialised Technology, the Paul V. Sherlock Center on Disabilities (Sherlock Center), and the TechACCESS Center.

“The purpose of my visit was to establish networks and collaborate with prolific scholars outside South Africa on research engagements. Furthermore, the visit was intended for me to meet with my international mentors in person regarding research engagements.

“During my research visit, Prof Elizabeth Dalton from Rhode Island University and a UDL specialist, and I focused on several academic conversations and demonstrations of Universal Design for Learning (UDL) strategies and approaches, as well as the sharing of many online resources available to support the implementation of UDL in inclusive settings.”

News Archive

Research eradicates bacteria from avocado facility
2017-01-17

 Description: Listeria monocytogenes Tags: Listeria monocytogenes

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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