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Six from Natural and Agricultural Sciences receive PhDs at December graduations

07 December 2023 | Story Leonie Bolleurs | Photo Charl Devenish

Today, after years of hard work, a group of PhD graduates in the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) stepped onto the stage in the Callie Human Centre with a sense of accomplishment and excitement to receive their doctoral degrees. The graduates covered an array of topics in their studies – from the use of virtual reality in health-care education to the well-being of sheep.

Avoiding cybersickness

Dr Bennie Botha, Lecturer in the Department of Computer Science and Informatics, created a framework for use in immersive virtual clinical simulations by virtual reality users (students), software developers, researchers, and educators. According to him, this can help to avoid cybersickness – much the same as motion sickness – a condition that can occur when an individual's perception of motion conflicts with their visual senses.

“The result is a more inclusive immersive virtual reality experience for students who would otherwise not be able to engage with this technology and reap the benefits it can bring to their education,” says Dr Botha, who wants to establish a global footprint and advance the use of all types of virtual reality in an African context.

He submitted his thesis: A framework to prevent or minimise cybersickness during immersive virtual clinical simulation.

Agricultural extensionists of the future

Dr Lindie von Maltitz, Lecturer in the Department of Agricultural Economics, conducted two studies in her research. The first was to determine the crucial skills and competencies that agricultural extensionists need in their modern-day workplace. The second focused on the available undergraduate curricula offered in South Africa, which fail to address these critical skills and competencies. She found a list of skills and professional competencies that are not sufficiently covered in the available curricula, and some are lacking entirely.

In the last chapter of her thesis, Skills and competencies of agricultural extension professionals in South Africa: implications for higher education curricula, Dr Von Maltitz provides recommendations on what to include in curricula at higher education institutions that will equip the agricultural extensionists of the future to excel in their profession and contribute to agricultural development. “I am excited to contribute more to curriculum development, especially in the field of agriculture in general. Farming with my husband for the past 20 years has allowed me to obtain first-hand experience in farming and agri-business. I have walked the road, and I am still walking it. I teach by bringing theory into context with real-life situations that I have personally experienced,” she states.

The well-being of sheep

Society often questions how we treat the animals we eat. Dr Leon Kruger, Lecturer in the Department of Animal Science, delves into this question through his research, titled: The effect of temperament and stress on production and immune response in sheep. His study explores, among others, the impact of short-term stress on production performance in sheep, the effect of stress on immune response post-vaccination, and the relationship between a sheep's temperament and stress.

“The focus is not just on doing what's perceived as best for the animals, but on applying practices that limit stress. We so often hear of marketing slogans such as grass-fed or grain-fed or Karoo lamb. Just imagine how the consumer would appreciate a slogan such as stress-free reared. It is not that far-fetched,” he believes.

Dr Kruger’s future research plans include investigating stressor effects associated with livestock auctions, examining the entire process from loading on the farm to unloading on the new farm. “I also want to compile a species vocabulary, analysing specific sounds that animals make in different situations. I want to describe the sound of an animal and link it to a situation, for example, the sound a ewe makes shortly after she lambs,” he says.

Adapting to climate change

Dr Anathi Makamane, Junior Lecturer in the Department of Sustainable Food Systems and Development, says the realisation that her research findings have spurred a tangible project aimed at increasing the capabilities of extension workers is immensely fulfilling. “Being part of a community dedicated to sustainable agriculture and witnessing the transformative impact of research outputs underscores the profound satisfaction derived from this journey,” she states.

Her thesis, Capacity of extension and advisory services in supporting farmers to adapt to climate change in the Eastern Cape, South Africa, sheds light on the critical role that extension workers play in assisting farmers with climate change adaptation. “My research outputs have translated into a practical project that aims to enhance the capacity of extension workers, ensuring that they possess the requisite skills to support farmers effectively,” explains Dr Makamane.

“Looking forward, my future goals involve the continued pursuit of research that directly contributes to the betterment of agricultural practices. Beyond this, I aim to engage in broader conversations on sustainable agriculture, collaborating with stakeholders to advocate for evidence-based policies that can benefit farmers nationwide,” she adds.

Managing potential environmental risks

With her PhD, Dr Megan Welman Purchase, Scientific Officer in the Department of Geology, explored the stability of iron-cyanide minerals found in the waste material of gold mines, commonly known as gold mine dumps or tailings facilities. The title of her thesis is: An investigation of the iron-cyanide mineralisation in gold mine dumps.

She says the implications of her work are of great significance for society. “Understanding the stability of iron-cyanide minerals helps in assessing and managing potential environmental risks associated with gold mine dumps. Moreover, the revelation that natural microbes can play a role in remediating cyanide contamination suggests a more sustainable and eco-friendly approach to addressing environmental concerns related to mining activities. This has the potential to positively impact both the environment and communities near mining sites,” Dr Welman Purchase explains.

The article has been cited by international authors at least three times since its publication, demonstrating its value to a global audience.

In future steps, Dr Welman Purchase would like to delve deeper into and understand these gold mine tailings facilities. “Additionally, I plan to investigate the specific conditions under which these natural remediation mechanisms are most effective, paving the way for practical and scalable applications in mining and environmental management,” she states, excited to be involved in science that can make a difference.

Improving soil erosion conservation efforts

With her thesis, Dr Marike Stander, Lecturer in the Department of Geography, delved into the intricacies of soil erosion with her research. Concentrating on a catchment in the Eastern Free State renowned for erodible soils, her analysis of sediments unravelled their origins.

Highlighting the far-reaching consequences, Dr Stander says that “soil erosion has detrimental effects on agricultural productivity by degrading arable land quality, but also that sedimentation in water bodies diminishes reservoir storage capacity with a myriad of adverse effects on aquatic environments”. She adds that a profound understanding of soil erosion processes, coupled with identifying and quantifying sediment sources, can pinpoint conservation efforts. “For agricultural land, it means sustaining productivity and food security, and for water resources, it holds value in planning reservoir placement, optimising water storage and ensuring healthy aquatic environments,” she explains.

In line with global initiatives, she adds, “Healthy soils play a pivotal role in achieving many of the United Nations’ sustainable development goals (SDG), since it links to safeguarding terrestrial ecosystems, reversing land degradation, and promoting sustainable agriculture, to name but a few.”

“It is rewarding to contribute to the often-overlooked global environmental issue of soil erosion. The potential to make even a slight impact on the environment and society is meaningful and fulfilling,” she says.

News Archive

During 2011: Highlights at the UFS

2011-12-01

2011 was a phenomenal year in the life of the University of the Free State and the memorable moments will be engraved in the history of this proud institution.

World Universities Forum honours the UFS

The UFS was awarded the World Universities Forum (WUF) Award for Best Practice in Higher Education during 2010.The Best Practice Award recognises the most significant practices of the year around the world. The university’s implementation of a number of interlocking innovations to transform the institution is recognised with the award.

These innovations include: campus-wide racial integration for students; reinvigoration of the academic culture; nurturing of the most promising young scholars by means of the Vice-Chancellor's Prestige Young Scholars Programme; sending 71 first-year students to top American universities to assist with their development into non-racial campus leaders; the revision of the undergraduate curriculum to promote a cross-disciplinary approach to key societal problems; raising the entry requirements; the facilitation of open access to campus leadership through sessions with the Vice-Chancellor and Rector; extension of this spirit of dialogue internationally through the inauguration of its International Advisory Council consisting of key thinkers and practitioners; the identification of 20 of the most dysfunctional high schools in the Free State and the building of relationships with those schools.

This university-school partnership is based on a strict contract of reciprocal commitments to increase the chances of black children attending university. The WUF applauded this as the most innovative step.

New branding for our 107-year old institution

Our university turned a fresh new page with the launch of a new brand that will take the institution on its path to new horizons.

Two primary brands were adopted – an evolved academic crest and a new marketing brand for the institution’s offerings and services. The very foundation of the UFS is built on a dynamic learning environment where academic excellence and the development of leadership qualities. The new brand seeks to adapt to the changing needs of society, without sacrificing its rich history and heritage.

The rebranding process involved one of the most expansive and intensive process of consultations with staff, alumni, Senate, Council and other stakeholders.

The new brand is anchored in the university’s renewed motto “In Veritate Sapientiae Lux” (In Truth is the Light of Wisdom), which has been evolved to embrace the diversity of the community at the university without losing its essence.

Archbishop Desmond Tutu receives an honorary doctorate

One of the great sons of Africa, Archbishop Emeritus Desmond Tutu, received an honorary doctor of Theology and opened the International Institute for Studies in Race, Reconciliation and Social Justice on the Bloemfontein Campus at the beginning of 2011.

The Institute originated in the Reitz incident of 2008 and embodies the UFS’s determination to be a place where reconciliation, forgiveness and social justice would not only be studied, but where it would also be applied. Students and scholars from across the world can study the theory and practice of building societies across the boundaries of race, as well as religion, gender, disabilities and national origin.

By honouring Dr Tutu, the UFS recognises the contribution he has made in the field of Theology through his teachings and the books he has written. The UFS not only honoured him as a moral and religious leader who has maintained his integrity as a Christian, but also as “a great son of South Africa who has made a huge contribution to peace, reconciliation and justice in South Africa and in the world”.

Reconciliation closes book on the Reitz incident

The Reitz incident, that has taken the UFS to front pages and news headlines, could come to closure this year with a reconciliation ceremony between the former students and staff members. The parties involved could meet in private and also took part in a public ceremony with many dignitaries witnessing the closure of the incident and repercussions it had.

Messages of apology were read by Prof. Teuns Verschoor, Vice-Rector: Institutional Affairs, on behalf of the UFS, and Mr Danie Grobler, on behalf of the former students. A message of acceptance of the apologies was read by Ms Emmah Koko on behalf of the workers.

Deputy Chairperson of the South Africa Human Rights Commission, Commissioner Pregs Govender, said of this historic event: “The courage and compassion shown by the workers together with the students’ willingness to embrace the spirit of change have enabled a process of justice, transformation and reconciliation that is an inspiring example for South Africa.”

Grade 12s attend first Leadership Summit

More than 280 learners from all over South Africa and Namibia attended a three-day Leadership Summit on the Bloemfontein Campus in April 2011. The goal of the summit was to enable young leaders to develop their leadership capabilities by looking beyond their normal boundaries.

Prof. Jonathan Jansen, Vice-Chancellor and Rector, addressed the learners on leadership while Mr Louie de Necker, a training consultant, spoke about conflict resolution. Other highlights included a visit to the Boyden Observatory, picnic suppers, an introduction to residence life, a social evening, and a prize-giving ceremony aimed at learners who distinguished themselves as potential leaders during the three-day visit.

UFS honours great teachers

Our university and Sunday Times have joined hands in identifying 150 of the greatest teachers, who moved, inspired and transformed South Africans during their time at school. The project culminated in the book Great Teachers.

These are the teachers who stood out among their colleagues and made a lasting impact on their learners, inspiring them to excel, long after the mathematical equations and English literature tests are forgotten. The book is a powerful account of inspired and inspiring teachers.

All proceeds from the sales of the book will be used to provide bursaries to student teachers of today, who may become the great teachers for tomorrow’s generation.

Graduations now a celebration

By changing its format, graduations are now a festival to celebrate years of hard work and dedication of students and lecturers at our university. Some of the changes include the gathering of the procession on the Red Square in front of the Main Building, from where it moves to the Callie Human Centre. The graduation programme is also filled with music and song items with various young speakers addressing and inspiring the audience.

A total of 83 doctorates were conferred this year, making it the highest number in the history of the university.

African Student Affairs Conference a huge success

The first African Student Affairs Conference (ASAC) was hosted by our university. The conference was attended by delegates from universities across the continent and was aimed to place the focus on issues relating to student affairs in an African context.

Delegates shared and exchanged strategies, ideas and resources, and discussed issues related to the work of student-affairs professionals. A delegate from Nigeria said it was an important conference for Africa and it should become a regular event.

Research published in Nature

A research article on the work by a team under the leadership of Prof. Esta van Heerden, and counterparts in Belgium and the USA, has been published in the distinguished academic journal Nature on 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 (nematode) living under extreme conditions in deep, hot mines. It was discovered in one of the gold mines in the Free State.

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.

Postgraduate School is one of a kind

Our Postgraduate School was launched with the aim of bringing research-bases education in line with national priorities and the focus of the UFS Academic Turnaround Strategy of 2010. It spans across our facilities.

The focus of the school is to produce graduates who are global citizens, research literate and able to reflect ethically on the purpose, process and product of research; to improve throughput rates of postgraduate students; and to make the experience of being a postgraduate at our university one which is stimulating, enjoyable and which contributes to the development of people beyond the limits of their disciplines.

Oprah Winfrey now a Kovsie

World attention was drawn to our university when an honorary doctorate in Education was conferred on media icon Oprah Winfrey on 24 June 2011 at our Bloemfontein Campus. The graduation was probably the biggest ceremony of its kind in South Africa, with more than 4 500 people attending.

Our university honoured her for her accomplishments and unparalleled work as a global media leader, as well as a philanthropist with vision and foresight in the field of education and development.

Prof. Jonathan Jansen, Vice-Chancellor and Rector of our university, said: “It is a great privilege for us to be the first South African university to honour Ms Winfrey in this way and to be able to recognise a global icon of her stature.”

UFS doctors make history in South Africa

Two procedures took the UFS to the forefront of the medical world this year.

History was made with the first implant of a special new aortic valve in South Africa. The advantage of this new valve is that it can be implanted percutaneously through a catheter from the groin. This eliminates the need for invasive surgery.

The valve is made from porcine pericardium (tissue derived from pigs) and is mounted on an expandable stent, which is threaded along an artery, until it reaches its desired position. The valve is especially useful in older patients who suffer from aortic valve disease and pose a high surgical risk. It also reduces hospitalisation time.

A rare malignant tumour was also removed in groundbreaking heart surgery. What makes this operation unique, is that the suspicious mass, identified in the heart of a 51-year old man, was rapidly growing into a highly invasive cardiac tumour seen in a small number of patients worldwide.

In the highly complex, 10-hour operation the entire right heart chamber had to be removed and the heart reconstructed.

School of Open Learning adds value

The activities of the new school are driven by a central principle: opening up access to those who have not had the opportunity to study at a higher-education institution due to geographical location, socio-economic circumstances or other factors.

Programmes are delivered through a blended-learning model, which blends contact teaching with distance education.

The school will collaborate with our various faculties, and is managing the continuing education-sponsored endeavours of the Faculty of Education. These include projects for in-service training of teachers in Mathematics, Natural and Physical Sciences, Languages, Literacy, Economic and Management Sciences, Technology and various areas of Management and Leadership.

Second group of young leaders abroad

A second group of first-year students in the Leadership for Change Programme visited universities in the USA, Europe and Asia. Our university could extent the programme to 150 students, up from 71 in 2010.

These students are seen as a leadership core, not only for their university life, but also in public life outside the university borders.

The main purpose behind the programme is to expose students to positive models of racial integration. Their experiences will go a long way towards changing and enriching the minds of young leaders, who have committed to building a truly non-racial society in South Africa.

Odeion School of Music launched

Our former Department of Music transformed into the Odeion School of Music. The name Odeion name portrays not only an excellent asset in the Free State, but also nationally and internationally.

The school’s new name bears the respected Odeion brand and a number of successful and respected ensembles operate under this brand. These include the residential Odeion String Quartet, student ensembles, the Junior Odeion String Quartet, the Odeion Sinfonia, and the Odeion Choir.

The formation of the school paths the way for more flexibility to complement its profile with new developments. These include the application of prestigious international experts as artistic fellows, membership to progressive European, jointly-developed degree programmes and curriculum development initiatives, the founding of a chair in Orchestra Conducting, a master’s degree in Arts Management, as well as the incorporation of bio-kinetics in the teaching methodologies of performance practice.

World-class Chemistry facilities opened

World-class Chemistry facilities, with state-of-the art equipment, opened on the Bloemfontein Campus.

The upgrading of the facilities and addition and replacement of equipment were the single biggest investment at our university in a long time.

Specialised research by the Department of Chemistry includes X-ray crystallography, electrochemistry, synthesis of new molecules, the development of new methods to determine rare elements, water purification, as well as the measurement of energy and temperatures responsible for phase changes in molecules, the development of agents to detect cancer and other defects in the body, and many more.

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