Browsing Workspace (UPSpace) by Title

Browsing Workspace (UPSpace) by Title

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  • Photo-and thermoresponsive N-salicylideneaniline derivatives : solid-state studies and structural aspects 
    Hulushe, Siya T.; Malan, F.P. (Frederick); Hosten, Eric C.; Lobb, Kevin A.; Khanye, Setshaba D.; Watkins, Gareth M. (Royal Society of Chemistry, 2022-10)
    N-Salicylideneaniline (SA) and its derivatives are known to possess chromism upon exposure to external stimuli. Herein, we present mechanochemical synthesis of a series of photo-and thermoresponsive SA-derivatives and ...
  • Photo-fenton oxidation of methyl orange dye using South African ilmenite sands as a catalyst 
    Butt, Alicia Levana; Mpinga, John Kabangu; Tichapondwa, Shepherd Masimba (MDPI, 2021-11-29)
    In this study, the viability of South African ilmenite sands as a catalyst in the photo-Fentonlike degradation of methyl orange (MO) dye was investigated. The mineralogy and other properties of the material were characterized. ...
  • Photocatalytic degradation of rhodamine B using CuS-doped ZnS under visible light irradiation 
    Mugumo, Rachel; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (Italian Association of Chemical Engineering, 2022)
    This study investigates the photocatalytic activity of CuS/ZnS in the degradation of Rhodamine B, an azo dye in textile wastewater generated through processing operations in textile industries which provides significant ...
  • Photocatalytic degradation of tetracycline using visible-lightdriven porous g-C3N4 nanosheets catalyst 
    Phakathi, Nothando A.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (The Italian Association of Chemical Engineering, 2022)
    Tetracycline is one of the most widely prevalent antibiotics, and it is used for both veterinary and human medical care purposes. Tetracycline is not fully absorbed in the digestive tract of humans and animals, and it is ...
  • Photogrammetry analysis of a vacuum-membrane solar dish using elliptical television antennas 
    Swanepoel, Jonathan Kyle; Roosendaal, Casey; Le Roux, Willem Gabriel (American Institute of Physics, 2022-05)
    The design of a solar dish usually involves the complex trade-off between cost and optical quality. The use of off-the-shelf elliptical television antennas in a vacuum-membrane solar dish array is investigated in this ...
  • Physical activity and related factors in pre-adolescent southern African children of diverse population groups 
    Pretorius, Adeline; Wood, Paola; Becker, Piet J.; Wenhold, Friedeburg Anna Maria (MDPI, 2022-08-11)
    Tailored obesity management includes understanding physical activity (PA) and its context, ideally in childhood before the onset of health risk. This cross-sectional study determined, by sex and population, the PA of ...
  • Physical demands of tennis across the different court surfaces, performance levels and sexes: a systematic review with meta-analysis 
    Pluim, Babette M.; Jansen, Marleen G.T.; Williamson, Samuel; Berry, Cain; Camporesi, Silvia; Fagher, Kristina; Heron, Neil; Janse van Rensburg, Dina Christina; Moreno-Perez, Víctor; Murray, Andrew; O’Connor, Sean R.; De Oliveira, Fabio Carlos Lucas; Reid, Machar; Van Reijen, Miriam; Saueressig, Tobias; Schoonmade, Linda J.; Thornton, Jane S.; Webborn, Nick; Ardern, Clare (Springer, 2023-04)
    BACKGROUND : Tennis is a multidirectional high-intensity intermittent sport for male and female individuals played across multiple surfaces. Although several studies have attempted to characterise the physical demands of ...
  • Physiological effects of physical activity on neurocognitive function in people living with HIV : a systematic review of intervention and observational studies 
    Nweke, Martins C.; Mshunqane, Nombeko; Govender, N.; Akinpelu, O.A. (LAM Publications Limited, 2021-03-01)
    The inadequacy of antiretroviral therapy in the treatment of HIV-associated neurocognitive disorders paves a way for regular physical activity as a lifestyle modification alternative. However, uncertainty exists among ...
  • Phytoremediation of Cr(VI) in wastewater using the vetiver grass (Chrysopogon zizanioides) 
    Masinire, Farai F.; Adenuga, Dorcas Oluyemisi; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (Elsevier, 2021-10)
    In this study, the phytoremediation of Cr(VI) in wastewater using vetiver grass (Chrysopogon zizanioides) was investigated. The influence of parameters such as initial concentration, grass density, and solution pH was ...
  • PID-MPC implementation on a chiller-fan coil unit 
    Sanama, Conrad; Xia, Xiaohua; Nguepnang, M. (Hindawi, 2022-09)
    A proportional, integral, and derivative-model predictive controller (PID-MPC) is implemented to enhance the performance of a chiller-fan coil unit with regards to temperature, humidity, and CO2 level control. The sublayer ...
  • Pilot study on the current management of children with COVID-19 In hospitals in Bangladesh : findings and implications 
    Nusrat, Nadia; Haque, Mainul; Chowdhury, Kona; Adnan, Nihad; Lutfor, Afzalunnessa Binte; Karim, Enamul; Hassan, Mahmuda; Rabbany, Arif; Begum, Dilara; Mohammad Nazmul Hasan; Sihan, Nazmus; Zaman, Sifat Uz; Islam, Salequl; Schellack, Natalie; Gowere, Marshall; Kurdi, Amanj; Godman, Brian (Bangladesh Academy of Sciences, 2021-09)
    OBJECTIVE : The focus on COVID-19 in children in low- and middle-income countries including Bangladesh has been on addressing key issues including poor vaccination rates as well as mental health issues, domestic violence ...
  • Pilots after shoulder surgery and rehabilitation in a dedicated musculoskeletal rehabilitation unit of a major airline returned to work earlier when compared to standard rehabilitation by external providers 
    Hohmann, Erik; Pieterse, Renier Johannes (Elsevier, 2022-01)
    PURPOSE : The purpose of this study was to compare the time to return to work (RTW) for pilots who underwent shoulder surgery and underwent rehabilitation within a dedicated musculoskeletal rehabilitation (MSK) unit of a ...
  • Pitiful rooftop solar uptake in sunny South Africa : a policy, funding and service delivery perspective 
    McKay, Tracey; Hendricks, Donavan (Frontiers Media, 2022-09-20)
    Despite rolling blackouts, high electricity prices, a favorable climate and the size of the South African economy, rooftop photovoltaic (PV) solar products have low levels of middle-income residential market penetration. ...
  • The place of African belief and germ theory on the causes of human diseases 
    Anizoba, Emmanuel C. (AOSIS, 2021-12-15)
    This study looks into the African belief about the mystical causes of diseases and the tenets of Western germ theory. Despite widespread Western medical practices, African people still strongly believe in the mystical ...
  • Planar hypohamiltonian oriented graphs 
    Burger, Alewyn P.; De Wet, J.P. (Johan); Frick, Marietjie; Van Cleemput, Nico; Zamfirescu, Carol T. (Wiley, 2023)
    In 1978 Thomassen asked whether planar hypohamiltonian oriented graphs exist. Infinite families of such graphs have since been described but for infinitely many it remained an open question whether planar hypohamiltonian ...
  • Plasmonic effect and bandgap tailoring of Ag/Ag2S doped on ZnO nanocomposites for enhanced visible-light photocatalysis 
    Ichipi, Emmanuel O.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (Elsevier, 2022-06)
    Please read abstract in the article.
  • Platelet function, role in thrombosis, inflammation, and consequences in chronic myeloproliferative disorders 
    Repsold, Lisa; Joubert, Anna Margaretha (MDPI, 2021-11-05)
    Platelets are conventionally defined as playing a vital role in homeostasis and thrombosis. This role has over the years transformed as knowledge regarding platelets has expanded to include inflammation, cancer progression, ...
  • Point and density forecasting of macroeconomic and financial uncertainties of the USA 
    Salisu, Afees A.; Gupta, Rangan; Ogbonna, Ahamuefula E. (Wiley, 2021-07)
    We forecast macroeconomic and financial uncertainties of the USA over the period of 1960:Q3 to 2018:Q4, based on a large dataset of 303 predictors using a wide array of constant-parameter and time-varying models. We find ...
  • The polarized image of a synchrotron-emitting ring of gas orbiting a black hole 
    Narayan, Ramesh; Palumbo, Daniel C. M.; Johnson, Michael D.; Gelles, Zachary; Himwich, Elizabeth; Chang, Dominic O.; Ricarte, Angelo; Dexter, Jason; Gammie, Charles F.; Chael, Andrew A.; The Event Horizon Telescope Collaboration; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Algaba, Juan Carlos; Anantua, Richard; Asada, Keiichi; Azulay, Rebecca; Baczko, Anne-Kathrin; Ball, David; Baloković, Mislav; Barrett, John; Benson, Bradford A.; Bintley, Dan; Blackburn, Lindy; Blundell, Raymond; Boland, Wilfred; Bouman, Katherine L.; Bower, Geoffrey C.; Boyce, Hope; Bremer, Michael; Brinkerink, Christiaan D.; Brissenden, Roger; Britzen, Silke; Broderick, Avery E.; Broguiere, Dominique; Bronzwaer, Thomas; Byun, Do-Young; Carlstrom, John E.; Chan, Chi-kwan; Chatterjee, Shami; Chatterjee, Koushik; Chen, Ming-Tang; Chen (陈永军), Yongjun; Chesler, Paul M.; Cho, Ilje; Christian, Pierre; 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; Doeleman, Sheperd S.; Eatough, Ralph P.; Falcke, Heino; Farah, Joseph; Fish, Vincent L.; Fomalont, Ed; Ford, H. Alyson; Fraga-Encinas, Raquel; Friberg, Per; Fromm, Christian M.; Fuentes, Antonio; Galison, Peter; García, Roberto; Gentaz, Olivier; Georgiev, Boris; Goddi, Ciriaco; Gold, Roman; Gomez, Jose L.; Gomez-Ruiz, Arturo I.; Gu, Minfeng; Gurwell, Mark; Hada, Kazuhiro; Haggard, Daryl; Hecht, Michael H.; Hesper, Ronald; Ho, Luis C.; Ho, Paul; Honma, Mareki; Huang, Chih-Wei L.; Huang, Lei; Hughes, David H.; Ikeda, Shiro; 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; Kofuji, Yutaro; Koch, Patrick M.; Koyama, Shoko; Kramer, Michael; Kramer, Carsten; Krichbaum, Thomas P.; Kuo, Cheng-Yu; Lauer, Tod R.; Lee, Sang-Sung; Levis, Aviad; Li, Yan-Rong; Li, Zhiyuan; Lindqvist, Michael; Lico, Rocco; Lindah, Greg; Liu, Jun; Liu, Kuo; Liuzzo, Elisabetta; Lo, Wen-Ping; Lobanov, Andrei P.; Loinard, Laurent; Lonsdale, Colin; 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.; Mizuno, Izumi; Mizuno, Yosuke; Moran, James M.; Moriyama, Kotaro; Moscibrodzka, Monika; Muller, Cornelia; Musoke, Gibwa; Mus Mejías, Alejandro; Nagai, Hiroshi; Nagar, Neil M.; Nakamura, Masanori; Narayanan, Gopal; Natarajan, Iniyan; Nathanail, Antonios; Neilsen, Joey; Neri, Roberto; Ni, Chunchong; Noutsos, Aristeidis; Nowak, Michael A.; Okino, Hiroki; Olivares, Hector; Ortiz-Leon, Gisela N.; Oyama, Tomoaki; Ozel, Feryal; Park, Jongho; Patel, Nimesh; Pen, Ue-Li; Pesce, Dominic W.; Pietu, Vincent; Plambeck, Richard; PopStefanija, Aleksandar; Porth, Oliver; Potzl, Felix M.; Prather, Ben; Preciado-Lopez, Jorge A.; Psaltis, Dimitrios; Pu, Hung-Yi; Ramakrishnan, Venkatessh; Rao, Ramprasad; Rawlings, Mark G.; Raymond, Alexander W.; Rezzolla, Luciano; Ripperda, Bart; Roelofs, Freek; Rogers, Alan; Ros, Eduardo; Rose, Mel; Roshanineshat, Arash; Rottmann, Helge; Roy, Alan L.; Ruszczyk, Chet; Rygl, Kazi L. J.; Sanchez, Salvador; Sanchez-Arguelles, David; Sasada, Mahito; Savolainen, Tuomas; Schloerb, F. Peter; Schuster, Karl-Friedrich; Shao, Lijing; Shen, Zhiqiang; Small, Des; Sohn, Bong Won; SooHoo, Jason; Sun, He; Tazaki, Fumie; Tetarenko, Alexandra J.; Tiede, Paul; Tilanus, Remo P. J; Titus, Michael; Toma, Kenji; Torne, Pablo; Trent, Tyler; Traianou, Efthalia; Trippe, Sascha; van Bemmel, Ilse; Van Langevelde, Huib Jan; Van Rossum, Daniel R.; Wagner, Jan; Ward-Thompson, Derek; Wardle, John; Weintroub, Jonathan; Wex, Norbert; Wharton, Robert; Wielgus, Maciek; Wong, George N.; Wu, Qingwen; Yoon, Doosoo; Young, Andre; Young, Ken; Younsi, Ziri; Yuan, Feng; Yuan, Ye-Fei; Zensus, J. Anton; Zhao, Guang-Yao; Zhao, Shan-Shan (IOP Publishing, 2021-05-01)
    Synchrotron radiation from hot gas near a black hole results in a polarized image. The image polarization is determined by effects including the orientation of the magnetic field in the emitting region, relativistic motion ...
  • Political campaigns in South Africa : does celebrity endorsement influence the intention to vote? 
    Madinga, Nkosivile Welcome; Maziriri, Eugine Tafadzwa; Mototo, Lebogang Thato; Chuchu, Tinashe (Wiley, 2021-05)
    From presidential campaigns to social awareness campaigns, celebrities have gradually become central fixtures in modern politics. They tend to be information platforms for candidates and parties they either clearly support ...