Browsing Arthur (Articles) by Title

Browsing Arthur (Articles) by Title

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  • Ubufundisi bonyana womgquba : in memoriam of Vuyani Shadrack Vellem 
    Buqa, Wonke (AOSIS, 2022-12-21)
    Vuyani Vellem was a distinguished scholar of black theology of liberation. A number of giants of black scholarship and theologians have written constructive tributes in recognition of his work, particularly in academia. ...
  • Ukraine war : a war of languages and bodies 
    Meylahn, Johann-Albrecht (AOSIS, 2022-12)
    For most readers, myself included, the views and opinions on the Russian attack and consequent war in Ukraine are dependent on the main media houses, who present the situation in a certain language. In this article, Badiou's ...
  • Uncertainty and sensitivity analysis of a remote-sensing-based Penman-Monteith model to meteorological and land surface input variables 
    Majozi, Nobuhle; Mannaerts, Chris M.; Ramoelo, Abel; Mathieu, Renaud; Verhoef, Wouter (MDPI, 2021-02)
    This study analysed the uncertainty and sensitivity of core and intermediate input variables of a remote-sensing-data-based Penman–Monteith (PM-Mu) evapotranspiration (ET) model. We derived absolute and relative uncertainties ...
  • Uncertainty, spillovers, and forecasts of the realized variance of gold returns 
    Gupta, Rangan; Pierdzioch, Christian (MDPI, 2021-09)
    Using data for the group of G7 countries and China for the sample period 1996Q1 to 2020Q4, we study the role of uncertainty and spillovers for the out-of-sample forecasting of the realized variance of gold returns and ...
  • Understanding the differential impacts of COVID-19 among hospitalised patients in South Africa for equitable response 
    Phaswana-Mafuya, Nancy; Shisana, O.; Jassat, Waasila; Baral, S.D.; Makofane, K.; Phalane, E.; Zuma, K.; Zungu, Nompumelelo Precious; Chadyiwa, M. (South African Medical Association, 2021-11)
    BACKGROUND : There are limited in-depth analyses of COVID-19 differential impacts, especially in resource-limited settings such as South Africa (SA). OBJECTIVES : To explore context-specific sociodemographic heterogeneities ...
  • Understanding the influence of teachers’ beliefs and professional dispositions on technology use in South African secondary schools before and during COVID 
    Sackstein, Suzanne Lee; Matthee, Machdel C.; Weilbach, Elizabeth Helena (Lizette) (EasyChair, 2022)
    Those advocating for technology integration within education claim that teachers need to reform their pedagogic practices to make learning more engaging and relevant. While educational technology researchers claim teachers ...
  • Understanding the role of rheology in the plastic settlement and shrinkage cracking of early age concrete 
    Kolawole, John Temitope; Combrinck, Riaan; Boshoff, W.P. (Billy) (RILEM Technical Letters, 2022-12)
    Understanding the plastic (settlement/shrinkage) cracking phenomena of early‐age concrete is important in‐order to establish a holistic approach to minimise its occurrence. One of the factors associated with early‐age ...
  • An unexpected new flightless dung beetle species (Coleoptera: Scarabaeidae : Scarabaeinae : Endroedyolini) from the Cederberg Mountains, South Africa 
    Daniel, Gimo M.; Strumpher, Werner P.; Deschodt, Christian M. (Magnolia Press, 2022-01-28)
    Silvaphilus joselmae Daniel, Strümpher & Deschodt, new species is diagnosed and described from the Cederberg Mountains, South Africa. The tribal affiliation of Silvaphilus Roets & Oberlander, 2010 is briefly discussed. ...
  • The unexplored possibilities, perceptions and ethical implications of gene-editing allergic disease : engaging stakeholders in South Africa 
    Castelyn, Camille De Villebois (Allergy Society of South Africa, 2022-09)
    Clinically approved cell and gene therapies are opening up future possibilities to treat and prevent myriad diseases, which may include allergic diseases. In South Africa, this could help alleviate the high disease burden ...
  • A unified molecular-wide and electron density based concept of chemical bonding 
    Cukrowski, Ignacy (Wiley, 2022-05)
    Chemical bonding is at heart but, not being a quantum mechanical-defined physical property of a system, is a subject of endless and often fruitless debates. Having so many and very different models of chemical bonding ...
  • A unified rule-based small-signal modelling technique for two-switch, non-isolated DC-DC converters in CCM 
    Masike, Lebogang; Gitau, Michael Njoroge; Adam, Grain P. (MDPI, 2022-07-27)
    The inherent non-linear behavior of switch-mode power supplies complicates the task of computing their linear models, which are essential for a model-oriented control design of DC–DC converters. In a model-oriented control ...
  • Unilateral left spontaneous adrenal haemorrhage in a middle aged male. A case report 
    Zulu, Sphamandla (Elsevier, 2021-09)
    BACKGROUND : Adrenal haemorrhage is a rare condition, traditionally diagnosed at autopsy. Aetiology of adrenal haemorrhage can be traumatic or non-traumatic related. Rare cases of spontaneous adrenal haemorrhage, mostly ...
  • Unique patterns of mating pheromone presence and absence could result in the ambiguous sexual behaviors of Colletotrichum species 
    Wilson, Andi M.; Lelwala, Ruvini V.; Taylor, Paul W.J.; Wingfield, Michael J.; Wingfield, Brenda D. (Genetics Society of America, 2021)
    Colletotrichum species are known to engage in unique sexual behaviors that differ significantly from the mating strategies of other filamentous ascomycete species. For example, most ascomycete fungi require the expression ...
  • Univariate and multivariate GARCH models applied to bitcoin futures option pricing 
    Venter, Pierre Johan; Mare, Eben (MDPI, 2021-06-10)
    In this paper, the Heston–Nandi futures option pricing model is applied to Bitcoin futures options. The model prices are compared to market prices to give an indication of the pricing performance. In addition, a multivariate ...
  • A universal power-law prescription for variability from synthetic images of black hole accretion flows 
    Georgiev, Boris; Pesce, Dominic W.; Broderick, Avery E.; Wong, George N.; Dhruv, Vedant; Wielgus, Maciek; Gammie, Charles F.; Chan, Chi-kwan; Chatterjee, Koushik; Emami, Razieh; Mizuno, Yosuke; Gold, Roman; Fromm, Christian M.; Ricarte, Angelo; Yoon, Doosoo; Joshi, Abhishek V.; Prather, Ben; Cruz-Osorio, Alejandro; Johnson, Michael D.; Porth, Oliver; Olivares, Hector; Younsi, Ziri; Rezzolla, Luciano; Vos, Jesse; Qiu, Richard; Nathanail, Antonios; Narayan, Ramesh; Chael, Andrew; Anantua, Richard; Moscibrodzka, Monika; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Asada, Keiichi; Azulay, Rebecca; Bach, Uwe; Baczko, Anne-Kathrin; Ball, David; Balokovic, Mislav; Barrett, John; Bauböck, 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; Broguiere, Dominique; Bronzwaer, Thomas; Bustamante, Sandra; Byun, Do-Young; Carlstrom, John E.; Ceccobello, Chiara; Chatterjee, Shami; Chen, Ming-Tang; Chen, Yongjun; Cheng, Xiaopeng; Cho, Ilje; Christian, Pierre; Conroy, Nicholas S.; Conway, John E.; Cordes, James M.; Crawford, Thomas M.; Crew, Geoffrey B.; Cui, Yuzhu; Davelaar, Jordy; De Laurentis, Mariafelicia; Dempsey, Jessica; Desvignes, Gregory; Dexter, Jason; Doeleman, Sheperd S.; Dougal, Sean; Dzib, Sergio A.; Eatough, Ralph P.; Falcke, Heino; Farah, Joseph R.; Fish, Vincent L.; Fomalont, Ed; Ford, H. Alyson; Fraga-Encinas, Raquel; Freeman, William T.; Friberg, Per; Fuentes, Antonio; Galison, Peter; García, Roberto; Gentaz, Olivier; Godd, Ciriaco; Gomez-Ruiz, Arturo I.; Gomez, José L.; Gu, Minfeng; Gurwel, Mark; Hada, Kazuhiro; Haggard, Daryl; Haworth, Kari; Hech, Michael H.; Hesper, Ronald; Heumann, Dirk; Ho, Luis C.; Ho, Paul; Honm, Mareki; Huang, Chih-Wei L.; Huang, 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; Jorstad, Svetlana; 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; Koch, Patrick M.; Koyama, Shoko; Kramer, Carsten; Kramer, Michael; Krichbaum, Thomas P.; Kuo, Cheng-Yu; La Bella, Noemi; Lauer, Tod R.; Lee, Daeyoung; Lee, Sang-Sung; Lehner, Luis; Leung, Po Kin; Levis, Aviad; Li, Zhiyuan; Lico, Rocco; Lindah, Greg; Lindqvist, Michael; Lisakov, Mikhail; Liu, Jun; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-Ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin J.; Lu, Ru-Sen; Mao, Jirong; Marchili, Nicola; Markof, Sera; Marrone, Daniel P.; Marscher, Alan P.; Martí-Vidal, Iván; Matsushita, Satoki; Matthews, Lynn D.; Menten, Karl M.; Michalik, Daniel; Mizuno, Izumi; Moran, James M.; Moriyama, Kotaro; Muller, Cornelia; Mus, Alejandro; Musok, Gibwa; Myserlis, Ioannis; Nadolski, Andrew; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayanan, Gopal; Natarajan, Iniyan; Fuentes, Santiago Navarro; Neilsen, Joey; Neri, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Nowak, Michael A.; Oh, Junghwan; Okino, Hiroki; Ortiz-Leon, Gisela N.; Oyama, Tomoaki; Palumbo, Daniel C. M.; Filippos Paraschos, Georgios; Park, Jongho; Parsons, Harriet; Patel, Nimesh; Pen, Ue-Li; Piétu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Pötzl, Felix M.; Preciado-Lopez, Jorge A.; Pu, Hung-Yi; Ramakrishnan, Venkatessh; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; Romero-Cañizales, Cristina; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Ruiz, Ignacio; Ruszczyk, Chet; Rygl, Kazi L. J.; Sanchez, Salvador; Sanchez-Arguelles, David; Sanchez-Porta, 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.; Wagner, Jan; Ward-Thompson, Derek; Wardle, John; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wiik, Kaj; Witzel, Gunther; Wondrak, Michael F.; Wu, Qingwen; Yamaguchi, Paul; Young, André; Young, Ken; Yuan, Feng; Yuan, Ye-Fei; Zensus, J. Anton; Zhang, Shuo; Zhao, Guang-Yao; Zhao, Shan-Shan (IOP Publishing, 2022-05)
    We present a framework for characterizing the spatiotemporal power spectrum of the variability expected from the horizon-scale emission structure around supermassive black holes, and we apply this framework to a library ...
  • Unpacking the implications of SARS-CoV-2 breakthrough infections on COVID-19 vaccination programs 
    Dzinamarira, Tafadzwa; Tungwarara, Nigel; Chitungo, Itai; Chimene, Munashe; Iradukunda, Patrick Gad; Mashora, Moreblessing; Murewanhema, Grant; Rwibasira, Gallican Nshogoza; Musuka, Godfrey (MDPI, 2022-02)
    Despite an array of preventive global public health interventions, SARS-CoV-2 has continued to spread significantly, infecting millions of people across the globe weekly. Newer variants of interest and concern have ...
  • Unraveling synergism between various GH family xylanases and debranching enzymes during hetero-xylan degradation 
    Malgas, Samkelo; Mafa, Mpho S.; Mathibe, Brian N.; Pletschke, Brett I. (MDPI, 2021-11-09)
    Enzymes classified with the same Enzyme Commission (EC) that are allotted in different glycoside hydrolase (GH) families can display different mechanisms of action and substrate specificities. Therefore, the combination ...
  • Unraveling the complexity of the rhomboid Serine protease 4 family of Babesia bovis using bioinformatics and experimental studies 
    Gallenti, Romina; Hussein, Hala E.; Alzan, Heba F.; Suarez, Carlos E.; Ueti, Massaro; Asurmendi, Sebastian; Benitez, Daniel; Araujo, Flabio R.; Rolls, Peter; Sibeko-Matjila, Kgomotso Penelope; Schnittger, Leonhard; Florin-Christensen, Monica (MDPI, 2022-03-12)
    Babesia bovis, a tick-transmitted apicomplexan protozoon, infects cattle in tropical and subtropical regions around the world. In the apicomplexans Toxoplasma gondii and Plasmodium falciparum, rhomboid serine protease 4 ...
  • An unusual cause of dyspnoea – can you spot the diagnosis? 
    Joseph, Darren; Pannell, N.; Tintinger, Gregory (South African Medical Association, 2022)
    A 66-year-old man presented with a complaint of shortness of breath. He had a significant smoking history but no known medical conditions. Two years prior, he had been involved in a motor vehicle accident and sustained ...
  • Update on current approaches, challenges, and prospects of modeling and simulation in renewable and sustainable energy systems 
    Yoro, Kelvin O.; Daramola, Michael Olawale; Sekoai, Patrick T.; Wilson, Uwemedimo N.; Eterigho-Ikelegbe, Orevaoghene (Elsevier, 2021-10)
    Modeling and simulation (M&S) is a well-known scientific tool that could be used to analyze a system or predict its behavior before physical construction. Despite being an established methodical tool in engineering, only ...