Volume 114 Number 9/10

South African Journal of Science volume 114 number 9/10 Food security is key to achieving UNAIDS targets Vancomycin-resistant enterococci in South Africa First ground-based recording of elusive sprites over southern Africa Publication incentives based on journal rankings disadvantage local journals Volume 114 EDITOR-IN-CHIEF Number 9/10 John Butler-Adam Academy of Science of South Africa Sep/Oct 2018 MANAGING EDITOR Linda Fick Academy of Science of South Africa South African ONLINE PUBLISHING Journal of Science SYSTEMS ADMINISTRATOR Nadine Wubbeling Academy of Science of South Africa ONLINE PUBLISHING ADMINISTRATOR Sbonga Dlamini eISSN: 1996-7489 Academy of Science of South Africa ASSOCIATE EDITORS Nicolas Beukes Leader Department of Geology, University of Johannesburg And out into the world they go … research on the international stage John Butler-Adam .................................................................................................................... 1 Chris Chimimba Department of Zoology and Entomology, University of Pretoria Obituary Claire Penn: Speech-language pathologist, teacher, supervisor, researcher and Linda Chisholm mentor (1951–2018) Centre for Education Rights and Transformation, University of Jennifer Watermeyer ................................................................................................................ 2 Johannesburg Book Review Teresa Coutinho Department of Microbiology and The Square Kilometre Array radio telescope: A media darling Plant Pathology, University of Pretoria Ian S. Glass ............................................................................................................................. 3 What kind of people have we formed in our university graduates? Tania Douglas Chrissie Boughey .................................................................................................................... 4 Division of Biomedical Engineering, University of Cape Town Commentary Menán du Plessis Department of General Linguistics, Using the curriculum to enhance teaching and learning Stellenbosch University Chrissie Boughey ..................................................................................................................... 5 Maryna Steyn Searching for David within the Goliath of alien woody plant invasions in the School of Anatomical Sciences, Western Cape Province University of the Witwatersrand Anthony J. Mills & Jessica L. Allen ........................................................................................... 8 Pieter Steyn The ecology of drought – a workshop report Department of Chemistry and Polymer Science, Anthony M. Swemmer, William J. Bond, Jason Donaldson, Gareth P. Hempson, Stellenbosch University Johan Malherbe & Izak P.J. Smit .............................................................................................. 11 Marco Weinberg Publication incentives based on journal rankings disadvantage local publications Department of Molecular Medicine Alan T.K. Lee & Carol A. Simon ................................................................................................. 14 and Haematology, University of the Witwatersrand Does South African research output promote innovation? Roula Inglesi-Lotz & Anastassios Pouris ................................................................................... 17 Patricia Whitelock South African Astronomical Observatory Review Article ASSOCIATE EDITOR Emergence of vancomycin-resistant enterococci in South Africa: Implications MENTEES for public health Maitumeleng Nthontho Frank E. Tatsing Foka, Ajay Kumar & Collins N. Ateba ................................................................ 20 Department of Education Management and Policy Studies, Aetiological doctrines and prevalence of pellagra: 18th century to middle University of Pretoria 20th century Margaretha Viljoen, Priyesh Bipath & Johannes L. Roos ........................................................... 27 Yali Woyessa Department of Civil Engineering, Central University of Technology EDITORIAL ADVISORY BOARD Research Article Laura Czerniewicz Centre for Higher Education Monthly average daily solar radiation simulation in northern KwaZulu-Natal: Development, University of Cape Town A physical approach Betty Kibirige ........................................................................................................................... 34 Roseanne Diab Academy of Science of South Africa Food insecurity, HIV status and prior testing at South African primary healthcare clinics Hassina Mouri Makandwe Nyirenda, Renee Street, Tarylee Reddy, Susie Hoffman, Department of Geology, Suraya Dawad, Kelly Blanchard, Theresa M. Exner, Elizabeth A. Kelvin, Joanne University of Johannesburg E. Mantell & Gita Ramjee .......................................................................................................... 42 Johann Mouton Alcohol and other drug use among women seeking substance abuse treatment Centre for Research on Science and in the Western Cape, South Africa Technology, Stellenbosch University Siphokazi Dada, Nadine Harker Burnhams, Ria Laubscher, Charles Parry & Bronwyn Myers ..... 48 Sershen Naidoo First report of bacterial endophytes from the leaves of Pellaea calomelanos in School of Life Sciences, University of KwaZulu-Natal South Africa Siphiwe G. Mahlangu & Mahloro H. Serepa-Dlamini ................................................................ 55 Maano Ramutsindela Department of Environmental & Mapping chlorophyll-a concentrations in a cyanobacteria- and algae-impacted Geographical Science, University of Vaal Dam using Landsat 8 OLI data Cape Town Oupa E. Malahlela, Thando Oliphant, Lesiba T. Tsoeleng & Paidamwoyo Mhangara .................... 64 Published by Application of science and technology by the South African food and beverage the Academy of Science of industry South Africa (www.assaf.org.za) Lisa-Claire Ronquest-Ross, Nick Vink & Gunnar O. Sigge ......................................................... 73 with financial assistance from the Department of Science & Technology. First ground-based observations of sprites over southern Africa Stanislaus Nnadih, Mike Kosch, Peter Martinez & Jozsef Bor .................................................... 84 Design and layout SUN MeDIA Bloemfontein T: 051 444 2552 E: [email protected] Correspondence and enquiries [email protected] Copyright All articles are published under a Creative Commons Attribution Licence. Copyright is retained by the authors. Disclaimer The publisher and editors accept no responsibility for statements made by the authors. Submissions Submissions should be made at www.sajs.co.za Cover caption In an image captured from the International Space Station, a red sprite can be seen above a lightning flash (image: NASA). In an article on page 84, Nnadih and colleagues present the first ground-based recordings of sprites over southern Africa. Leader And out into the world they go … research on the international stage The Leader in the July/August issue of the South African Journal of international collaboration often translates into higher citation impact, Science reflected briefly on the loss of senior university managers who increases in networks and access to more funding opportunities. have left the local system to take up leading positions in universities elsewhere in the world. The Leader mentioned that this has also been true of scientists and scholars – and in this Leader we reflect on a different aspect of internationalisation – changes in patterns of research output and cooperation. To do so, the Leader relies substantially on the June 2018 issue of SciBytes1, published by the DST-NRF Centre of Excellence in Scientometrics and Science, Technology and Innovation Policy (SciSTIP). The authors of the June issue, Prof. Johann Mouton and Dr Jaco Blanckenberg, have granted permission to draw on their work here. In making their calculations, the authors make use of the Web of Science database, and confine their assessment to South Africa’s publications in two categories: ‘articles’ and ‘review articles’. This means that they exclude documents such as books, book chapters and conference proceedings in their counts which are based on three indicators: 1 (1) publication output, (2) international collaboration and (3) citation Source: Mouton and Blanckenberg visibility or impact. Figure 1: South Africa’s publication collaboration profile (2000–2016). In the 17-year period between 2000 and 2016, three major shifts have In 2000, about a third of South Africa’s papers involved co-authorship taken place in the nature of South African scientific publishing. First, with at least one foreign author. By 2016, this proportion had increased research publications have not just increased (as might be expected) to 50%. The increase in international collaboration has occurred at but increased significantly. Secondly, South African scientists have the ‘expense’ of national collaboration (which declined from 47% come to collaborate considerably more frequently with scientists and to 34% over the same period) as well as a clear decline in single- scholars internationally than before. Thirdly, the growth in South Africa’s authored publications. There is a small, but steady, trend of increasing publication output has taken place at the same time as there has been an collaboration with scientists and scholars in the rest of Africa: this increase in the visibility of our scientific papers. proportion increased from a near-zero base in 2000 to 5% in 2016.

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