Now showing items 1-20 of 45

    • A pilot study investigating the presence of voids in bulk fill flowable composites 

      Mulder, R.; Mohammed, N.; Du Plessis, A.; Le Roux, S. G. (South African Dental Association, 2017)
      OBJECTIVE: To investigate the presence of voids in bulk fill flowable composites. METHODS: This study investigated two well-known bulk-fill flowable composites, Smart Dentin Replacement (SDR) (Dentsply/Caulk, Milford, ...
    • Underperformance in social studies in grades 5–7 in Namibian primary schools : a case study 

      Carl, Arend E.; Negumbo, Theopolina A. N. (The South African Society for History Teaching, 2017)
      This article focuses on the challenges of learners’ underperformance in Social Studies in Namibia. The study investigated the possible factors that may contribute to learners’ underperformance in Social Studies in the ...
    • The precarious employment position of ministers of religion : servants of God but not of the church 

      Calitz, Karin (Juta Law Publishing, 2017)
      South African courts have in recent years progressively extended protection against unfair dismissal to categories of persons not previously regarded as employees. Courts interpreted labour legislation in light of the ...
    • Wannie Carstens : profeet vir versoening – Sy enigste droom was om die Afrikaanse gemeenskap te versoen 

      Le Cordeur, Michael L. (AOSIS Publishing, 2018)
      Wannie Carstens: An agent for reconciliation. His only dream was to reconcile the Afrikaans community. When I first met Wannie Carstens, I thought to myself: This must be one of those WOW moments that people talk about. ...
    • Critical interdisciplinary dialogues : towards a pedagogy of well-being in stem disciplines and fields 

      Winberg, C.; Bozalek, V. G.; Conana, H.; Wright, J.; Wolff, K. E.; Pallitt, N.; Adendorff, Hanelie (HESA, 2018)
      Students enrolled in Science, Technology, Engineering and Mathematics (STEM) globally and in South Africa are generally not in a state of well-being. International and South African research studies show that undergraduate ...
    • Professional learning for teaching at a research-intensive university : the need for a ‘care-full’ environment 

      Herman, N.; Bitzer, E.; Leibowitz, B. (HESA, 2018)
      The participation of academics in professional learning opportunities for teaching plays an important role in promoting the desired outcomes of higher education teaching and learning. If university teachers pursuing a ...
    • An assessment of algorithms for deriving failure deterministic finite automata 

      Nxumalo, Madoda; Kourie, Derrick G.; Cleophas, Loek; Watson, Bruce W. (South African Institute of Computer Scientists and Information Technologists, 2017)
      Failure deterministic finite automata (FDFAs) represent regular languages more compactly than deterministic finite automata (DFAs). Four algorithms that convert arbitrary DFAs to language-equivalent FDFAs are empirically ...
    • Biocapacity optimization in regional planning 

      Guo, Jianjun; Yue, Dongxia; Li, Kai; Hui, Cang (Nature Research, 2017)
      Ecological overshoot has been accelerating across the globe. Optimizing biocapacity has become a key to resolve the overshoot of ecological demand in regional sustainable development. However, most literature has focused ...
    • Platelet, monocyte and neutrophil activation and glucose tolerance in South African Mixed Ancestry individuals 

      Davison, Glenda M.; Nkambule, Bongani B.; Mkandla, Zibusiso; Hon, Gloudina M.; Kengne, Andre P.; Erasmus, Rajiv T.; Matsha, Tandi E. (Nature Research, 2017)
      Platelet activation has been described in patients with chronic inflammation, however in type 2 diabetes mellitus it remains controversial. We compared levels of platelet leucocyte aggregates, monocyte and granulocyte ...
    • Measuring antigen-specific responses in Mycobacterium bovis-infected warthogs (Phacochoerus africanus) using the intradermal tuberculin test 

      Roos, Eduard O.; Olea-Popelka, Francisco; Buss, Peter; Hausler, Guy A.; Warren, Robin; Van Helden, Paul D.; Parsons, Sven D. C.; De Klerk-Lorist, Lin-Mari; Miller, Michele A. (BMC (part of Springer Nature), 2018)
      Background: Bovine tuberculosis (bTB) caused by Mycobacterium bovis has previously been diagnosed in warthogs and infection can be highly prevalent (> 30%) in endemic areas. Thus, warthogs could potentially be an ...
    • 1000 Genomes-based metaanalysis identifies 10 novel loci for kidney function 

      Gorski, Mathias; Van Der Most, Peter J.; Teumer, Alexander; Chu, Audrey Y.; Li, Man; Mijatovic, Vladan; Nolte, Ilja M.; Cocca, Massimiliano; Taliun, Daniel; Gomez, Felicia; Li, Yong; Tayo, Bamidele; Tin, Adrienne; Feitosa, Mary F.; Aspelund, Thor; Attia, John; Biffar, Reiner; Bochud, Murielle; Boerwinkle, Eric; Borecki, Ingrid; Bottinger, Erwin P.; Chen, Ming-Huei; Chouraki, Vincent; Ciullo, Marina; Coresh, Josef; Cornelis, Marilyn C.; Curhan, Gary C.; d’Adamo, Adamo Pio; Dehghan, Abbas; Dengler, Laura; Ding, Jingzhong; Eiriksdottir, Gudny; Endlich, Karlhans; Enroth, Stefan; Esko, Tonu; Franco, Oscar H.; Gasparini, Paolo; Gieger, Christian; Girotto, Giorgia; Gottesman, Omri; Gudnason, Vilmundur; Gyllensten, Ulf; Hancock, Stephen J.; Harris, Tamara B.; Helmer, Catherine; Hollerer, Simon; Hofer, Edith; Hofman, Albert; Holliday, Elizabeth G.; Homuth, Georg; Hu, Frank B.; Huth, Cornelia; Hutri-Kahonen, Nina; Hwang, Shih-Jen; Imboden, Medea; Johansson, Asa; Kahonen, Mika; Konig, Wolfgang; Kramer, Holly; Kramer, Bernhard K.; Kumar, Ashish; Kutalik, Zoltan; Lambert, Jean-Charles; Launer, Lenore J.; Lehtimaki, Terho; De Borst, Martin H.; Navis, Gerjan; Swertz, Morris; Liu, Yongmei; Lohman, Kurt; Loos, Ruth J. F.; Lu, Yingchang; Lyytikainen, Leo-Pekka; McEvoy, Mark A.; Meisinger, Christa; Meitinger, Thomas; Metspalu, Andres; Metzger, Marie; Mihailov, Evelin; Mitchell, Paul; Nauck, Matthias; Oldehinkel, Albertine J.; Olden, Matthias; Penninx, Brenda W. J. H.; Pistis, Giorgio; Pramstaller, Peter P.; Probst-Hensch, Nicole; Raitakari, Olli T.; Rettig, Rainer; Ridker, Paul M.; Rivadeneira, Fernando; Robino, Antonietta; Rosas, Sylvia E.; Ruderfer, Douglas; Ruggiero, Daniela; Saba, Yasaman; Sala, Cinzia; Schmidt, Helena; Schmidt, Reinhold; Scott, Rodney J.; Sedaghat, Sanaz; Smith, Albert V.; Sorice, Rossella; Stengel, Benedicte; Stracke, Sylvia; Strauch, Konstantin; Toniolo, Daniela; Uitterlinden, Andre G.; Ulivi, Sheila; Viikari, Jorma S.; Volker, Uwe; Vollenweider, Peter; Volzke, Henry; Vuckovic, Dragana; Waldenberger, Melanie; Wang, Jie Jin; Yang, Qiong; Chasman, Daniel I.; Tromp, Gerard; Snieder, Harold; Heid, Iris M.; Fox, Caroline S.; Kottgen, Anna; Pattaro, Cristian; Boger, Carsten A.; Fuchsberger, Christian (Nature Research, 2017)
      HapMap imputed genome-wide association studies (GWAS) have revealed >50 loci at which common variants with minor allele frequency >5% are associated with kidney function. GWAS using more complete reference sets for imputation, ...
    • Growing-up (habitually) barefoot influences the development of foot and arch morphology in children and adolescents 

      Hollander, Karsten; De Villiers, Johanna Elsabe; Sehner, Susanne; Wegscheider, Karl; Braumann, Klaus-Michael; Venter, Ranel; Zech, Astrid (Nature Research, 2017)
      The development of the human foot is crucial for motor learning in children and adolescents as it ensures the basic requirements for bipedal locomotion and stable standing. Although there is an ongoing debate of the ...
    • Surveillance of healthcare-associated infection in hospitalised South African children : Which method performs best? 

      Dramowski, A.; Cotton, M. F.; Whitelaw, A. (Health & Medical Publishing Group, 2017)
      Background. In 2012, the South African (SA) National Department of Health mandated surveillance of healthcare-associated infection (HAI), but made no recommendations of appropriate surveillance methods. Methods. Prospective ...
    • Kaposi’s sarcoma : good outcome with doxorubicin, bleomycin and vincristine sulphate (ABV) chemotherapy and highly active antiretroviral therapy 

      Hesseling, P. B.; Katayi, E.; Wharin, P.; Bardin, R.; Kouya, F.; Palmer, D.; Glenn, M.; Kruger, M. (Health & Medical Publishing Group, 2017)
      There is little published information on effective treatment of Kaposi’s sarcoma (KS) in children in low-income countries. We prospectively treated 12 patients with an institutional review board-approved protocol consisting ...
    • Robustness of rigid and adaptive networks to species loss 

      Nuwagaba, Savannah; Zhang, Feng; Hui, Cang (Public Library of Science, 2017)
      Controversies in the complexity-stability debate have been attributed to the methodologies used such as topological vs. dynamical approaches or rigid vs. adaptive foraging behaviour of species. Here, we use a bipartite ...
    • Vacuum polarization energy for general backgrounds in one space dimension 

      Weigel, H. (Elsevier, 2017)
      For field theories in one time and one space dimensions we propose an efficient method to compute the vacuum polarization energy of static field configurations that do not allow a decomposition into symmetric and anti-symmetric ...
    • Consistency between SU(3) and SU(2) covariant baryon chiral perturbation theory for the nucleon mass 

      Ren, Xiu-Lei; Alvarez-Ruso, L.; Geng, Li-Sheng; Ledwig, Tim; Meng, Jie; Vacas, M. J. Vicente (Elsevier, 2017)
      Treating the strange quark mass as a heavy scale compared to the light quark mass, we perform a matching of the nucleon mass in the SU(3) sector to the two-flavor case in covariant baryon chiral perturbation theory. The ...
    • No evidence for extensions to the standard cosmological model 

      Heavens, Alan; Fantaye, Yabebal; Sellentin, Elena; Eggers, Hans; Hosenie, Zafiirah; Kroon, Steve; Mootoovaloo, Arrykrishna (American Physical Society, 2017)
      We compute the Bayesian evidence for models considered in the main analysis of Planck cosmic microwave background data. By utilizing carefully defined nearest-neighbor distances in parameter space, we reuse the Monte Carlo ...
    • Glass transitions in monodisperse cluster-forming ensembles : vortex matter in type-1.5 superconductors 

      Diaz-Mendez, Rogelio; Mezzacapo, Fabio; Lechner, Wolfgang; Cinti, Fabio; Babaev, Egor; Pupillo, Guido (American Physical Society, 2017)
      At low enough temperatures and high densities, the equilibrium configuration of an ensemble of ultrasoft particles is a self-assembled, ordered, cluster crystal. In the present Letter, we explore the out-of-equilibrium ...
    • Solving Dirac equations on a 3D lattice with inverse Hamiltonian and spectral methods 

      Ren, Z. X.; Zhang, S. Q.; Meng, J. (American Physical Society, 2017)
      A new method to solve the Dirac equation on a 3D lattice is proposed, in which the variational collapse problem is avoided by the inverse Hamiltonian method and the fermion doubling problem is avoided by performing spatial ...