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22 May 2020 | Story Leonie Bolleurs | Photo Supplied
Prof Das Steÿn was announced as the recipient of the prestigious Stals Prize this week (19 May 2020), awarded by the Suid-Afrikaanse Akademie vir Wetenskap en Kuns.

Prof Das Steÿn, former Head and currently a research fellow in the Department of Urban and Regional Planning at the University of the Free State (UFS), has been named the recipient of the prestigious Stals Prize this week (19 May 2020), awarded by the Suid-Afrikaanse Akademie vir Wetenskap en Kuns (South African Academy for Science and Arts).

The current Head of the Department, Prof Maléne Campbell, together with two academics from the North-West University, Profs Juanée Cilliers (Head of the Urban and Regional Planning group) and Ewert Kleynhans (School of Economic Sciences), nominated Prof Steyn for the award.

A lifetime’s work

The Stals Prize for Urban and Regional Planning was awarded to Prof Steÿn, based on his numerous publications in Afrikaans, the important role he played in the planning profession in South Africa, his major contribution to the planning of literature, as well as the academic development of urban and regional planning. The award recognises Prof Steÿn for a lifetime's work in the field of urban and regional planning – including his appointment as a lecturer (1980-2009) and also for his time as editor of the journal Stads-en Streekbeplanning / Town and Regional Planning / Meralo ya Ditoropo le Mabatowa (2000-2019).

“As editor of the journal for Urban and Regional Planning, Prof Steÿn set a very high standard. So much so that this UFS journal was listed earlier this year on the international SciELO (Scientific Electronic Library Online), a Norwegian database. As an academic, his research and theoretical knowledge of normative planning are also highly regarded,” says Prof Campbell.

Motivating Prof Steÿn’s nomination for the Stals Prize, Prof Campbell states that as editor, he has sought to highlight issues in the South African planning industry through well-founded headlines. “The journal also grew from a small local journal to a journal that is being read every month in more than 60 countries on the free access platform,” she adds.

In addition to this journal, Prof Steÿn has also published in other journals and written books that have appeared bilingually in South Africa. Then there is also a work that has appeared in Dutch in the Netherlands with his contribution in Afrikaans.

He applied a combination of the urbanistic concept with Christian philosophy in his work and published some articles on the topic.

Distinction between thought and action

Prof Steÿn says that in urbanistics, a distinction is made between the framework of thought and action. It is a matter of answering the ‘what?’, ‘how?’, and ‘why?’ questions.

He believes urbanistics is particularly useful in public participation to bring the various role players in planning together. It makes it possible to distinguish between the considerable number of factors that complicate matters. South Africa, with its unique situation regarding planning, may be able to make good use of this concept.

As example, he uses the matter of providing basic services such as electricity to a community. “At the first level of infrastructure, the problem of providing electricity is easy to solve: x people use y units, implying that z units must be provided. This solves the ‘what?’ part of the problem. The ‘how?’ question in the superstructure is also relatively easy to answer. Different engineers may have different solutions about the appropriate design of the distribution network and how it should link to the greater whole. Still, in the end, the most effective design will be sufficient.”
 
“The major crisis is in the ‘why?’ question. At the ideological level, basic services mean different things to different people. Basic services to the Marxist are a right that every person must receive free of charge, while the capitalist considers it a commodity that every human being should pay for to receive.”

“This simple example shows that there is a definite difference in viewpoints about the mere provision of electricity and that these attitudes of people will, as a matter of course, influence the planning process itself,” he explains. 

Recognising outstanding work

The Suid-Afrikaanse Akademie vir Wetenskap en Kuns awards the Stals Prize for, among others, high-quality publications or a series of high-quality publications (preferably in Afrikaans) whereby extraordinary contributions are made to the practice of science.

News Archive

UFS study on cell development in top international science journal
2008-09-16

A study from the University of the Free State (UFS) on how the change in the packaging of DNA with cell development influenced the expression of genes, will be published in this week’s early edition of the prestigious international, peer-reviewed science journal, the Proceeding of the National Academy of Sciences of the USA (PNAS).

The PNAS journal has an impact factor of 10, which means that studies published in the journal are, on average, referred to by ten other scientific studies in a two year period. The South African Journal of Science, by comparison, has an impact factor of 0.7.

The UFS study, funded by the Wellcome Trust and the National Research Foundation (NRF), looked at how the change in the packaging of DNA with cell development influenced the expression of genes. It is very relevant to research on stem cells, an area of medicine that studies the possible use of undifferentiated cells to replace damaged tissue.

Prof. Hugh Patterton, of the Department of Microbial, Biochemical and Food Biotechnology at the UFS, who led the study, said: "We are extremely proud of this study. It was conceived in South Africa, it was performed in South Africa, the data were analysed in South Africa, and it was published from South Africa."

When a gene is expressed, the information encoded in the gene is used to manufacture a specific protein. In eukaryotes, which include humans, there is approximately 1m of DNA, containing the genes, in every cell. This length of DNA has to fit into a cell nucleus with a diameter of only about 10 micrometer. In order to fit the DNA into such a small volume, eukaryotic cells wrap their DNA onto successive protein balls, termed nucleosomes. Strings of nucleosomes, resembling a bead of pearls, is folded into a helix to form a chromatin fiber. The study from the UFS investigated how the binding of a specific protein, termed a linker histone, that binds to the length of DNA between nucleosomes, influenced the formation of the chromatin fiber and also the activity of genes.

"We found that the linker histone bound to chromatin in yeast, which we use as a model eukaryote, under conditions where virtually all the genes in the organism were inactive. It was widely believed that the binding of the linker histone caused the inactivation of genes. We studied the relationship between the amount of linker histone bound in the vicinity of each gene and the expression of that gene for all the genes in yeast, using genomic techniques. We made the surprising discovery that even through the linker histone preferentially bound to genes under conditions where the genes were shut off, this inactivation of genes was not caused by the binding of the linker histone and folding of the chromatin,” said Prof. Patterton.

He said: “Instead our data strongly suggested that the observed anti-correlation was due to the movement of enzymes along the DNA molecule, involved in processing the information in genes for the eventual manufacture of proteins. This movement of enzymes displaced the linker histones from the DNA. This finding now requires a rethink on aspects of how packaging of DNA influences gene activity."

Prof. Patterton said that his research group, using the Facility for Genomics and Proteomics as well as the Bioinformatics Node at the UFS, was currently busy with follow-up studies to understand how other proteins in nucleosomes affected the activities of genes, as well as with projects to understand how chemicals found in red wine and in green tea extended lifespan. "We are certainly having a marvelous time trying to understand the fundamental mechanisms of life, and the UFS is an exciting place to be if one was interested in studying life at the level of molecules," he said.


Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
18 September 2008
 

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