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Research Articles (University of Pretoria): Recent submissions

  • The Event Horizon Telescope image of the Quasar NRAO 530 
    Jorstad, Svetlana; Wielgus, Maciek; Lico, Rocco; Issaoun, Sara; Broderick, Avery E.; Pesce, Dominic W.; Liu, Jun; Zhao, Guang-Yao; Krichbaum, Thomas P.; Blackburn, Lindy; Chan, Chi-kwan; Janssen, Michael; Ramakrishnan, Venkatessh; Akiyama, Kazunori; Alberdi, Antxon; Algaba, Juan Carlos; Bouman, Katherine L.; Cho, Ilje; Fuentes, Antonio; Gomez, Jose L.; Gurwell, Mark; Johnson, Michael D.; Kim, Jae-Young; Lu, Ru-Sen; Marti-Vidal, Ivan; Moscibrodzka, Monika; Potzl, Felix M.; Traianou, Efthalia; Van Bemmel, Ilse; Alef, Walter; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Balokovic, Mislav; Barrett, John; Baubock, Michi; Benson, Bradford A.; Bintley, Dan; Bower, Geoffrey C.; Boyce, Hope; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broguiere, Dominique; Bronzwaer, Thomas; Bustamante, Sandra; Byun, Do-Young; Carlstrom, John E.; Ceccobello, Chiara; Chael, Andrew; Chatterjee, Koushik; Chatterjee, Shami; Chen, Ming-Tang; Chen (陈永军), Yongjun; Cheng, Xiaopeng; Christian, Pierre; Conroy, Nicholas S.; Conway, John E.; Cordes, James M.; Crawford, Thomas M.; Crew, Geoffrey B.; Cruz-Osorio, Alejandro; Cui, Yuzhu; Davelaar, Jordy; De Laurentis, Mariafelicia; Deane, Roger; Dempsey, Jessica; Desvignes, Gregory; Dexter, Jason; Dhruv, Vedant; Doeleman, Sheperd S.; Dougal, Sean; Dzib, Sergio A.; Eatough, Ralph P.; Emami, Razieh; Falcke, Heino; Farah, Joseph; Fish, Vincent L.; Fomalont, Ed; Ford, H. Alyson; Fraga-Encinas, Raquel; Freeman, William T.; Friberg, Per; Fromm, Christian M.; Galison, Peter; Gammie, Charles F.; Garcia, Roberto; Gentaz, Olivier; Georgiev, Boris; Goddi, Ciriaco; Gold, Roman; Gomez-Ruiz, Arturo I.; Gu (顾敏峰), Minfeng; Hada, Kazuhiro; Haggard, Daryl; Haworth, Kari; Hecht, Michael H.; Hesper, Ronald; Heumann, Dirk; Ho, Luis C,; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang (黄磊), Lei; Hughes, David H.; Ikeda, Shiro; Impellizzeri, C. M. Violette; Inoue, Makoto; James, David J.; Jannuzi, Buell T.; Jeter, Britton; Jiang, Wu; Jimenez-Rosales, Alejandra; Joshi, Abhishek, V.; Jung, Taehyun; Karami, Mansour; Karuppusamy, Ramesh; Kawashima, Tomohisa; Keating, Garrett K.; Kettenis, Mark; Kim, Dong-Jin; Kim, Jongsoo; Kim, Junhan; Kino, Motoki; Koay, Jun Yi; Kocherlakota, Prashant; Kofuji, Yutaro; Koyama, Shoko; Kramer, Carsten; Kramer, Michael; Kuo, Cheng-Yu; La Bella, Noemi; Lauer, Tod R.; Lee, Daeyoung; Lee, Sang-Sung; Leung, Po Kin; Levis, Aviad; Li (李志远), Zhiyuan; Lindahl, Greg; Lindqvist, Michael; Lisakov, Mikhail; Liu, Kuo; Liuzzo, Elizabeth; Lo, Wen-Ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin J.; MacDonald, Nicholas R.; Mao, Jirong; Marchili, Nicola; Markoff, Sera; Marrone, Daniel P.; Marscher, Alan P.; Matsushita, Satoki; Matthews, Lynn D.; Medeiros, Lia; Menten, Karl M.; Michalik, Daniel; Mizuno, Izumi; Mizuno, Yosuke; Moran, James M.; Moriyama, Kotaro; Muller, Cornelia; Mus, Alejandro; Musoke, Gibwa; Myserlis, Ioannis; Nadolski, Andrew; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayan, Ramesh; Narayanan, Gopal; Natarajan, Iniyan; Nathanail, Antonios; Navarro Fuentes, Santiago; Neilsen, Joey; Neri, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Nowak, Michael A.; Oh, Junghwan; Okino, Hiroki; Olivares, Hector; Ortiz-Leon, Gisela N.; Oyama, Tomoaki; Ozel, Feryal; Palumbo, Daniel C. M.; Paraschos, Georgios Filippos; Park, Jongho; Parsons, Harriet; Patel, Nimesh; Pen, Ue-Li; Pietu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Porth, Oliver; Prather, Ben S.; Preciado-Lopez, Jorge A.; Psaltis, Dimitrios; Pu, Hung-Yi; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ricarte, Angelo; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; Romero-Canizales, Cristina; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Riuz, Ignacio; Ruszczyk, Chet; Rygl, Kazi L. J.; Sanchez, Salvador; Sanchez-Arguelles, David; Sanchez-Portal, Miguel; Sasada, Mahito; Satapathy, Kaushik; Savolainen, Tuomas; Schloerb, F. Peter; Schonfeld, Jonathan; Schuster, Karl-Friedrich; Shao, Lijing; Shen, Zhiqiang; Small, Des; Sohn, Bong Won; SooHoo, Jason; Souccar, Kamal; Sun, He; Tazaki, Fumie; Tetarenko, Alexandra J.; Tiede, Paul; Tilanus, Remo P. J.; Titus, Michael; Torne, Pablo; Trent, Tyler; Trippe, Sascha; Turk, Matthew; van Langevelde, Huib Jan; Van Rossum, Daniel R.; Vos, Jesse; Wagner, Jan; Ward-Thompson, Derek; Wardle, John; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wiik, Kaj; Witzel, Gunther; Wondrak, Michael F.; Wong, George N.; Wu, Qingwen; Yoon, Doosoo; Young, Andre; Young, Ken; Younsi, Ziri; Yuan, Feng; Yuan, Ye-Fei; Zensus, J. Anton; Zhang, Shuo; Zhao, Shan-Shan (IOP Publishing, 2023-02-01)
    We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5−7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*. At z=0.902, this is the ...
  • Comparison of polarized radiative transfer codes used by the EHT collaboration 
    Prather, Ben S.; Dexter, Jason; Moscibrodzka, Monika; Pu, Hung-Yi; Bronzwaer, Thomas; Davelaar, Jordy; Younsi, Ziri; Gammie, Charles F.; Gold, Roman; Wong, George N.; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Balokovic, Mislav; Barrett, John; Baubock, Michi; Benson, Bradford A.; Bintley, Dan; Blackburn, Lindy; Blundell, Raymond; Bouman, Katherine L.; Bower, Geoffrey C.; Boyce, Hope; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broderick, Avery E.; Broguiere, Dominique; Bustamante, Sandra; Byun, Do-Young; Carlstrom, John E.; Ceccobello, Chiara; Chael, Andrew; Chan, Chi-kwan; Chang, Dominic O.; Chatterjee, Koushik; Chatterjee, Shami; Chen, Ming-Tang; Chen (陈永军), Yongjun; Cheng, Xiaopeng; Cho, Ilje; Christian, Pierre; Conroy, Nicholas S.; Conway, John E.; Cordes, James M.; Crawford, Thomas M.; Crew, Geoffrey B.; Cruz-Osorio, Alejandro; Cui, Yuzhu; De Laurentis, Mariafelicia; Deane, Roger; Dempsey, Jessica; Desvignes, Gregory; Dhruv, Vedant; Doeleman, Sheperd S.; Dougal, Sean; Dzib, Sergio A.; Eatough, Ralph P.; Emami, Razieh; Falcke, Heino; Farah, Joseph; Fish, Vincent L.; Fomalont, Ed; Ford, H. Alyson; Fraga-Encinas, Raquel; Freeman, William T.; Friberg, Per; Fromm, Christian M.; Fuentes, Antonio; Galison, Peter; Garcia, Roberto; Gentaz, Olivier; Georgiev, Boris; Goddi, Ciriaco; Gomez-Ruiz, Arturo I.; Gomez, Jose L.; Gu (顾敏峰), Minfeng; Gurwell, Mark; Hada, Kazuhiro; Haggard, Daryl; Haworth, Kari; Hecht, Michael H.; Hesper, Ronald; Heumann, Dirk; Ho, Luis C,; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang (黄磊), Lei; Hughes, David H.; Ikeda, Shiro; Impellizzeri, C. M. Violette; Inoue, Makoto; Issaoun, Sara; James, David J.; Jannuzi, Buell T.; Janssen, Michael; Jeter, Britton; Jiang, Wu; Jimenez-Rosales, Alejandra; Johnson, Michael D.; Jorstad, Svetlana; Joshi, Abhishek V.; Jung, Taehyun; Karami, Mansour; Karuppusamy, Ramesh; Kawashima, Tomohisa; Keating, Garrett K.; Kettenis, Mark; Kim, Dong-Jin; Kim, Jae-Young; Kim, Jongsoo; Kim, Junhan; Kino, Motoki; Koay, Jun Yi; Kocherlakota, Prashant; Kofuji, Yutaro; Koyama, Shoko; Kramer, Carsten; Kramer, Michael; Krichbaum, Thomas P.; Kuo, Cheng-Yu; La Bella, Noemi; Lauer. Tod R.; Lee, Daeyoung; Lee, Sang-Sung; Leung, Po Kin; Levis, Aviad; Li (李志远), Zhiyuan; Lico, Rocco; Lindahl, Greg; Lindqvist, Michael; Lisakov, Mikhail; Liu, Jun; Liu, Kuo; Liuzzo, Elizabeth; Lo, Wen-Ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin J.; Lu, Ru-Sen; MacDonald, Nicholas R.; Mao, Jirong; Marchili, Nicola; Markoff, Sera; Marrone, Daniel P.; Marscher, Alan P.; Marti-Vidal, Ivan; Matsushita, Satoki; Matthews, Lynn D.; Medeiros, Lia; Menten, Karl M.; Michalik, Daniel; Mizuno, Izumi; Mizuno, Yosuke; Moran, James M.; Moriyama, Kotaro; Muller, Cornelia; Mus, Alejandro; Musoke, Gibwa; Myserlis, Ioannis; Nadolski, Andrew; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayan, Ramesh; Narayanan, Gopal; Natarajan, Iniyan; Nathanail, Antonios; Navarro Fuentes, Santiago; Neilsen, Joey; Neri, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Nowak, Michael A.; Oh, Junghwan; Okino, Hiroki; Olivares, Hector; Ortiz-Leon, Gisela N.; Oyama, Tomoaki; Ozel, Feryal; Palumbo, Daniel C. M.; Paraschos, Georgios Filippos; Park, Jongho; Parsons, Harriet; Patel, Nimesh; Pen, Ue-Li; Pesce, Dominic W.; Pietu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Porth, Oliver; Potzl, Felix M.; Preciado-Lopez, Jorge A.; Psaltis, Dimitrios; Ramakrishnan, Venkatessh; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ricarte, Angelo; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; Romero-Canizales, Cristina; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Ruszczyk, Chet; Rygl, Kazi L. J.; Sanchez, Salvador; Sanchez-Arguelles, David; Sanchez-Portal, Miguel; Sasada, Mahito; Satapathy, Kaushik; Savolainen, Tuomas; Schloerb, F. Peter; Schonfeld, Jonathan; Schuster, Karl-Friedrich; Shao, Lijing; Shen, Zhiqiang; Small, Des; Sohn, Bong Won; SooHoo, Jason; Souccar, Kamal; Sun, He; Tazaki, Fumie; Tetarenko, Alexandra J.; Tiede, Paul; Tilanus, Remo P. J; Titus, Michael; Torne, Pablo; Traianou, Efthalia; Trent, Tyler; Trippe, Sascha; Turk, Matthew; Van Bemmel, Ilse; van Langevelde, Huib Jan; Van Rossum, Daniel R.; Vos, Jesse; Wagner, Jan; Ward-Thompson, Derek; Wardle, John; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wielgus, Maciek; Wiik, Kaj; Witzel, Gunther; Wondrak, Michael F.; Wu, Qingwen; Yamaguchi, Paul; Yfantis, Aristomenis; Yoon, Doosoo; Young, Andre; Young, Ken; The Event Horizon Telescope Collaboration (American Astronomical Society, 2023-06-10)
    Interpretation of resolved polarized images of black holes by the Event Horizon Telescope (EHT) requires predictions of the polarized emission observable by an Earth-based instrument for a particular model of the black hole ...
  • Gender-based violence victim support policies in South Africa : an intersectional analysis from the perspective of Indian women in Chatsworth 
    Naidoo, Linda; Wielenga, Cori (Policy Press, 2024)
    This study aimed to assess the implementation of the KwaZulu-Natal 365 Days Policy Framework for the Eradication of Gender-Based Violence, particularly the Victim Support Programme, in the minority Indian community in ...
  • Dosage sensitivity shapes balanced expression and gene longevity of homoeologs after whole-genome duplications in angiosperms 
    Shi, Tao; Gao, Zhiyan; Chen, Jinming; Van de Peer, Yves (Oxford University Press, 2024-10)
    Please read abstract in the article.
  • The limits of virtue politics in an African context 
    Olujohungbe, Benjamin Timi; Owoseni, Adewale O. (Wiley, 2024)
    This paper situates Karl Popper's ‘paradox of tolerance’ as foundation within the context of interrogating multifaceted violent identity politics propagated in contemporary Nigeria. The paper argues that the ‘active’ virtue ...
  • DORA : 48-week weight and metabolic changes in Black women with HIV, in a phase IIIb switch study from dolutegravir- or efavirenz- to doravirine-based first-line antiretroviral therapy 
    Woods, Joana; Sokhela, Simiso; Akpomiemie, Godspower; Bosch, Bronwyn; Moeller, Karlien; Bhaskar, Esther; Kruger, Chelsea; Manentsa, Ncomeka; Tom, Noxolo; Macholo, Philadelphia; Chandiwana, Nomathemba C.; Hill, Andrew; Moorhouse, Michelle; Venter, Willem Daniel Francois (Wiley, 2024)
    OBJECTIVES : Treatment-related weight gain and metabolic complications with antiretroviral integrase-based regimens, especially among Black women, suggest the need for alternative options. METHODS : We conducted a ...
  • A tapestry of human-induced and climate-driven environmental change in western Uganda : the Ndali Crater Lakes Region 
    Schmidt, Peter R.; Walz, Jonathan R.; Besigye, Jackline N.; Lejju, Julius B. (Cambridge University Press, 2024-03)
    Recent archaeological and paleoenvironmental research in the Ndali Crater Lakes Region (NCLR) of western Uganda provide important new insights into anthropogenic impacts on moist forests to the East of the Rwenzori Mountains. ...
  • ‘A cultivated leader and sensible spokesman for black African views’1 : Britain's courting of KaNgwane Chief Minister Enos J. Mabuza 
    Feather, Daniel J. (Wiley, 2024)
    This article analyses British policymakers’ efforts to court Enos John Mabuza, Chief Minister of the self-governing South African homeland of KaNgwane, in the final years of apartheid. It contends that despite taking place ...
  • Staff perspectives on transformational needs at a South African higher education institution 
    Magida, Nontembiso; Yazbek, Mariatha; Thambura, Julius Muchui (Wiley, 2024)
    Transformation reflects the government's engagement and policies in restructuring higher education to cultivate the country's communal economy. Higher education is challenged in providing tertiary education to students ...
  • Internationalization of higher education and emerging national rationales : comparative analysis of the Global North and South 
    Kapfudzaruwa, Farai (Springer, 2024)
    This paper provides a comparative analysis of national rationales to higher education internationalization in the global north and south countries using content analysis. The results reveal that the socio-economic rationales ...
  • COVID-19 experience and student wellbeing amongst publicly funded higher education students in South Africa after the first, and second waves 
    Wildschut, Angelique; Wilson-Fadiji, Angelina (Springer, 2024-08)
    Although higher education students have been identified as one of the social groups most affected by the impact of COVID-19, higher education literature appears to focus more on documenting implications for teaching and ...
  • Assessing blockchain and IoT technologies for agricultural food supply chains in Africa : a feasibility analysis 
    Tang, Andrews; Tchao, Eric Tutu; Agbemenu, Andrew Selasi; Keelson, Eliel; Klogo, Griffith Selorm; Kponyo, Jerry John (Elsevier, 2024-08)
    This review paper delves into the global agricultural food supply chains through the lens of African perspectives, examining the role of blockchain and Internet of Things (IoT) technologies in transforming food traceability. ...
  • Factors associated with willingness to pay for primary health care services in South Africa : a cross-sectional survey of medical schemes members 
    Thsehla, Evelyn M.M.; Hongoro, Charles; Miot, Jacqui; Kgasi, Kate; Marinda, Edmore; Maramba, Esnath; Chabi, Alister; Childs, Barry; Modupe, Olurotimi; Alaba, Olufunke (Sage, 2024-09)
    The cost of healthcare is an issue of concern for both consumers and funders of healthcare in South Africa. The country spends approximately 8% of GDP on health care. Health care is financed through the public sector which ...
  • An inclusive framework for collaboration between midwives and traditional birth attendants and optimising maternal and child healthcare in restricted rural communities in South Africa : policy considerations 
    Musie, Maurine Rofhiwa; Mulaudzi, Fhumulani Mavis; Anokwuru, Rafiat Ajoke; Sepeng, Nombulelo Veronica (MDPI, 2024-02)
    Collaboration between midwives and traditional birth attendants for maternal and child healthcare is a challenge in rural South African communities due to the absence of a guiding framework. To address this, this study ...
  • Holistic sexual-reproductive healthcare services and needs for queer individuals : healthcare providers’ perspectives 
    Seretlo, Raikane J.; Smuts, Hanlie; Mokgatle, Mathildah Mpata (MDPI, 2024-05)
    There are ongoing debates and controversies about whether genderqueer individuals have specific sexual-reproductive healthcare services and needs (SRHSNs). This study intended to identify and explore queer-specific SRHSNs ...
  • Zircon U-Pb and Lu-Hf isotopes reveal the crustal evolution of the SW Angolan Shield (Congo Craton) 
    Ferreira, Ezequiel; Lehmann, Jeremie; Rodrigues, José Feliciano; Hayes, Ben; Merino-Martínez, Enrique; Milani, Lorenzo; Bybee, Grant M.; Smith, Trishya M.O; García-Lobón, José Luis; Tassinari, Colombo C.G.; Ueckermann, Henriette; Sato, Kei; Silva, Paulo Bravo; Correia, João; Labaredas, José; Duarte, Laurent; Molekwa, Mmasetena A.; Manuel, José; da Mata Lourenço Victorino, Américo (Elsevier, 2024-07)
    The crustal evolution of the Angolan Shield (AS) remains poorly constrained. To address this, we analysed U-Pb and Lu-Hf isotopes in detrital and igneous zircons to investigate the age and provenance of extensive sedimentary ...
  • Decolonialisation of education : the pre-service teacher turn 
    Vandeyar, Saloshna (Routledge, 2024)
    Utilising the critically conscious teacher preparation framework and social constructivism, this qualitative case study conducted in 2021 set out to explore how pre-service teachers make the turn towards decolonialisation ...
  • The plant checklist : building the foundation of botanical knowledge in South Africa 
    Victor, Janine E.; Klopper, Ronell Renett; Winter, Pieter J.D.; Le Roux, M. Marianne (Wiley, 2024-08)
    Taxonomic research and resultant checklists play a crucial role in underpinning all biodiversity research. Compiling an inventory of plants that occur in a region or country is a complicated task that can be subject to ...
  • A framework for developing systems engineering management for process plant acquisition projects 
    Moodley, Denver; Oosthuizen, Rudolph (Wiley, 2024)
    South Africa has a history of poor performance on process plant acquisition projects in the process industry that apply chemical processes within large processing facilities to convert raw materials such as crude oil into ...
  • Phylogeny and historical biogeography of the southern African lacewing genus Afroptera (Neuroptera: Nemopteridae: Nemopterinae) 
    Abdalla, Ishtiag H.; Mansell, Mervyn W.; Sole, Catherine L.; Daniel, Gimo M. (Wiley, 2024)
    The lacewing genus Afroptera Abdalla & Mansell (Neuroptera: Nemopteridae: Nemopterinae) is endemic to southern Africa, predominantly found in the Fynbos and Succulent Karoo biomes. The taxonomy of the genus has been recently ...