• Monitoring of the radio galaxy M 87 at Very High Energy with MAGIC during a low emission state between 2012 and 2015 

  Arcaro, C.; Richter, S.; Spanier, F.; Bangale, P.; Manganaro, M. (Cambridge Univ Press, 2017)

  We present the preliminary results from observing the nearby radio galaxy M 87 for 156 hours (between the years 2012 and 2015) with the MAGIC telescopes, which lead to a significant very high energy (VHE, E > 100 GeV) ...
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  Techno-economic feasibility of a preoxidation process to enhance prereduction of chromite 

  Kleynhans, E.L.J.; Beukes, J.P.; Van Zyl, P.G.; Fick, J.I.J. (SAIMM, 2017)

  Ferrochrome (FeCr) is vital for the production of stainless and high-alloy ferritic steels, since it is the only source of new Cr units. FeCr production is an energy-intensive process. The pelletized chromite prereduction ...
• Physiological response to angling of Africa’s premier freshwater angling species, the tigerfish Hydrocynus vittatus 

  Gerber, Ruan; Howatson, Glyn; Smit, Nico; Greenfield, Richard; Wagenaar, Ina (Taylor & Francis, 2017)

  Angling fraternities widely promote catch-and-release (C&R) as a fisheries management tool. This study aimed to determine the physiological response of Africa’s premier freshwater angling species, the tigerfish Hydrocynus ...
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  Developing a graphical tool for students to understand air resistance and free fall: when heavier objects do fall faster 

  Ferreira, Annalize; Seyffert, Albertus S.; Lemmer, Miriam (IOP, 2017)

  Abstract Many students find it difficult to apply certain physics concepts to their daily lives. This is especially true when they perceive a principle taught in physics class as being in conflict with their experience. ...
• Evaluating the performance and emission reductions of a coal-derived low-smoke fuel in a conventional household stove 

  Sumbane, Lungile P.; Piketh, Stuart J.; Bunt, John R.; Neomagus, Hein W.J.P. (IEEE, 2017)

  A low-smoke fuel (LSF) produced via the devolatilisation of coal lumps is proposed as an option to combat the health-damaging effects of domestic coal combustion. This study investigates the effect of the LSF particle size ...
• Variability of domestic burning habits in the South African Highveld: a case study in the KwaDela Township (April 2017) 

  Nkosi, C. Ncobile; Piketh, J. Stuart; Burger, P. Roelof; Harrold, Annergan J. (IEEE, 2017)

  Air quality in the South African low-income residential areas is poor due to gaseous and particulate emissions from a range of sources including domestic burning. The absence of data on fuel use and variability in low-income ...
• The relationship between thermal comfort and indoor PM4 mass concentration within low-cost houses in Ikageng 

  Qhekwana, M.; Letsholo, T.; Burger, R.P.; Piketh, S.J. (IEEE, 2017)

  Solid fuels (wood, coal, and biomass) are used as alternative energy sources in South Africa, predominantly in low-income households. Space heating using wood is a common practice to obtain thermal comfort. Consequently, ...
• Rediscovery of Chonopeltis meridionalis Fryer, 1964 (Crustacea: Branchiura) from Labeo rosae Steindachner in the River Olifants, Mpumalanga, and the taxonomic status of C. victori Avenant-Oldewage, 1991 and C. koki Van As, 1992 

  Van As, Liesl L.; Smit, Nico J.; Van As, Jo G. (Springer, 2017)

  Chonopeltis Thiele, 1900 presently comprises 14 species, it is endemic to Africa and its species show a high degree of host-specificity towards fish families and in some cases, individual fish species. Chonopeltis meridionalis ...
• Concept confusion and concept discernment in basic magnetism using analogical reasoning 

  Lemmer, Miriam; Morabe, Olebogeng Nicodimus (IOP, 2017)

  Analogical reasoning is central to all learning, whether in daily life situations, in the classroom or while doing research. Although analogies can aid the learning process of making sense of phenomena and understanding ...
• Habitat associations of fish-parasitic gnathiid isopods in a shallow reef system in the central Philippines 

  Santos, T.R.N.; Sikkel, P.C. (Springer, 2017)

  Gnathiid isopods are among the most common ectoparasitic organisms infesting marine fishes in benthic marine environments, and are best known in coral reef ecosystems. These micropredators are ecologically important, as ...
• Quantitative metabolomics of a xylose-utilizing Saccharomyces cerevisiae strain expressing the Bacteroides thetaiotaomicron xylose isomerase on glucose and xylose 

  Mert, M.J.; La Grange, D.C.; Rose, S.H.; Bamba, T.; Hasunuma, T. (Springer, 2017)

  The yeast Saccharomyces cerevisiae cannot utilize xylose, but the introduction of a xylose isomerase that functions well in yeast will help overcome the limitations of the fungal oxido-reductive pathway. In this study, a ...
• Metabolic risks of neonates at birth following in utero exposure to HIV-ART: the amino acid profile of cord blood 

  Moutloatse, Gontse P.; Lindeque, Zander; Van Reenen, Mari; Reinecke, Carolus J.; Schoeman, Johannes C. (Springer, 2017)

  Introduction Untargeted metabolomics of cord blood indicated that antiretroviral therapy to HIV-infected mothers (HIV-ART) did not compromise the exposed neonates with regard to the stress of neonatal hypoglycaemia at ...
• Cell-free DNA in a three-dimensional spheroid cell culture model: a preliminary study 

  Aucamp, Janine; Calitz, Carlemi; Bronkhorst, Abel J.; Hamman, Sias; Gouws, Chrisna; Pretorius, Piet J. (Elsevier, 2017)

  Background Investigating the biological functions of cell-free DNA (cfDNA) is limited by the interference of vast numbers of putative sources and causes of DNA release into circulation. Utilization of three-dimensional ...
• Bioaccessibility and risk assessment of essential and non-essential elements in vegetables commonly consumed in Swaziland 

  Mnisi, Robert Londi; Mafu, Lihle D.; Ndibewu, Peter P.; Bwembya, Gabriel C. (Elsevier, 2017)

  The green leafy vegetables (Mormodica involucrate, Bidens pilosa and Amaranthus spinosus) are economic; seasonal; locally grown and easily available; easy to propagate and store; highly nutritious food substances that form ...
• Diatom teratologies as biomarkers of contamination: are all deformities ecologically meaningful? 

  Lavoie, Isabelle; Taylor, Jonathan C.; Hamilton, Paul B.; Morin, Soizic; Kim Tiam, Sandra (Elsevier, 2017)

  Contaminant-related stress on aquatic biota is difficult to assess when lethal impacts are not observed. Diatoms, by displaying deformities (teratologies) in their valves, have the potential to reflect sub-lethal responses ...
• Evaluation of fungicides for potential growth regulating properties on sorghum 

  Craven, Maryke; Smith, Karla; Berner, Jacques; Morey, Liesl; McLaren, Neal W. (Elsevier, 2017)

  Fungicidal compounds such as triazoles and strobilurins have been shown to have plant growth regulating properties leading to, amongst others, delayed senescence or increased yield. The aim of the current study was to ...
• Chemical and structural characterization of char development during lignocellulosic biomass pyrolysis 

  Mafu, Lihle D.; Neomagus, Hein W.J.P.; Everson, Raymond C.; Strydom, Christien A.; Okolo, Gregory N.; Bunt, John R. (Elsevier, 2017)

  The chemical and structural changes of three lignocellulosic biomass samples during pyrolysis were investigated using both conventional and advanced characterization techniques. The use of ATR-FTIR as a characterization ...
• Uridine diphosphate-glucuronosyltransferase (UGT) 2B subfamily interspecies differences in carnivores 

  Kondo, Takamitsu; Ikenaka, Yoshinori; Nakayama, Shouta M.M.; Kawai, Yusuke K.; Mizukawa, Hazuki (Oxford Univ Press, 2017)

  UDP-glucuronosyltransferases (UGTs) are among the most important xenobiotic metabolizing enzymes that conjugate a wide range of chemicals. Previous studies showed that Felidae and Pinnipedia species have very low UGT ...
• Two-sample tests for multivariate functional data 

  Jiang, Qing; Meintanis, Simos G.; Zhu, Lixing (Springer, 2017)

  We consider two–sample tests for functional data with observations which may be uni– or multi–dimensional. The new methods are formulated as L2–type criteria based on empirical characteristic functions and are convenient ...
• Goodness-of-fit tests in conditional duration models 

  Meintanis, Simos G.; Milošević, Bojana; Obradović, Marko (Springer, 2017)

  We propose specification tests for the innovation distribution in conditional duration models. The new tests are based either on the cumulative distribution function, or on exponential transforms such as the Laplace transform ...

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