Now showing items 15889-15908 of 35397

    • Guilmant, F. 2012. Sonates 1 - 5. [CD-bespreking] 

      Carstens, Christiaan (Die Suider-Afrikaanse Kerkorrelistevereniging, 2012)
    • Guilt in Bereavement: The Role of Self-Blame and Regret in Coping with Loss 

      Stroebe, Margaret; Stroebe, Wolfgang; Van de Schoot, Rens; Schut, Henk; Abakoumkin, Georgios; Li, Jie (Public Library of Science, 2014)
      Despite the apparent centrality of guilt in complicating reactions following bereavement, scientific investigation has been limited. Establishing the impact of specific components associated with guilt could enhance ...
    • Guise, D. 1993. Freedom for all. The orange river proposals. [Boek resensie] 

      Anoniem (The South African Society of History Teaching, 1995)
    • Gum ghatti and acrylic acid based biodegradable hydrogels for the effective adsorption of cationic dyes 

      Fosso-Kankeu, E.; Mittal, H.; Mishra, Shivani B.; Mishra, Ajay K. (Elsevier, 2015)
      This article reports biosorption properties of Gum ghatti and acrylic acid based graft co-polymers for the adsorption of methylene blue (MB) and rhodamine B (RhB). Gg–cl–PAA removed 99% MB and 98% RhB from the respective ...
    • Gut microbiota of Busseola fusca (Lepidoptera: Noctuidae) 

      Snyman, Maxi; Gupta, Arvind Kumar; Bezuidenhout, Cornelius Carlos; Claassens, Sarina; Van den Berg, Johnnie (Springer, 2016)
      Busseola fusca (Fuller) (Lepidoptera: Noctuidae) is a stemborer pest that attacks maize (Zea mays) throughout sub-Saharan Africa. Genetically modified maize has been shown to be effective against B. fusca. However, resistance ...
    • Gyorfi T Against the New Constitutionalism (Edward Elgar Publishing Cheltenham, UK 2016) 

      Venter, F (2017-05-16)
      This contribution reviews the book entitled Against the New Constitutionalism authored by Tamas Gyorfi. He challenges the pivotal role given to judges in constitutional adjudication.
    • H-selfadjoint roots of H-selfadjoint matrices and H-polar decompositions over the quaternions 

      Van Straaten, M. (North-West University (South Africa), 2022)
      All vector spaces in this thesis will be endowed with an indefinite inner product defined by an invertible Hermitian matrix H. We study cases where the H has either complex or quaternion entries depending on the context. We ...
    • The H-test probability distribution revisited: Improved sensitivity 

      Busching, Ingo; De Jager, Ocker Cornelis (EDP Sciences, 2010)
    • H. Pieter Van der Westhuizen op 90 : 'n Biografiese oorsig 

      Meyer, Jaco (Die Suider-Afrikaanse Kerkorrelistevereniging, 2021)
      Hercules Pieter van der Westhuizen (*1931) is a South African composer who served on the Interchurch Review Commission of the Afrikaans Psalm Anthology in 1977. His contributions to the church and choir repertoire in ...
    • H. Rider Haggard : a critical study of his prose fiction 

      Terblanche, Johan David Villiers (North-West University (South Africa), 19??)
      "No abstract"
    • H.E.S.S. and Fermi-LAT observations of PSR B1259-63/LS 2883 during its 2014 and 2017 periastron passages 

      Abdalla, H.; Arcara, C.; Backes, M.; Barnard, M.; Böttcher, M.; Chand, T.; Chandra, S.; Kreter, M.; Ndiyavala, H.; Schutte, H.; Seyffert, A.S.; Van der Walt, D.J.; Van Rensburg, C.; Venter, C.; Wadiasingh, Z.; Zacharias, M.; Żywucka, N.; Fermi LAT; H.E.S.S. Collaboration (EDP Sciences, 2020)
      Context. PSR B1259–63/LS 2883 is a gamma-ray binary system consisting of a pulsar in an eccentric orbit around a bright Oe stellar-type companion star that features a dense circumstellar disc. The bright broad-band emission ...
    • H.E.S.S. and Suzaku observations of the Vela X pulsar wind nebula 

      Abdalla, H.; Arcaro, C.; Backes, M.; Barnard, M.; Böttcher, M.; Chand, T.; Chandra, S.; Ndiyavala, H.; Schutte, H.; Seyffert, A.S.; Van der Walt, D.J.; Van Rensburg, C.; Venter, C.; Wadiasingh, Z.; Zacharias, M.; Zywucka, N.; H.E.S.S. Collaboration (EDP Sciences, 2019)
      Context. Pulsar wind nebulae (PWNe) represent the most prominent population of Galactic very-high-energy gamma-ray sources and are thought to be an efficient source of leptonic cosmic rays. Vela X is a nearby middle-aged ...
    • H.E.S.S. constraints on dark matter annihilations towards the Sculptor and Carina dwarf galaxies 

      Abramowski, A.; Büsching, I.; De Jager, O.C.; Venter, C.; Vorster, M.; H.E.S.S. Collaboration (Elsevier, 2011)
      The Sculptor and Carina dwarf spheroidal galaxies were observed with the H.E.S.S. Cherenkov telescope array between January 2008 and December 2009. The data sets consist of a total of 11.8 h and 14.8 h of high quality data, ...
    • H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud 

      Abramowski, A.; Böttcher, M.; Davids, I.D.; Ivascenko, A.; Krüger, P.P.; Pekeur, N.W.; Spanier, F.; Sushch, I.; Venter, C.; Vorster, M.; H.E.S.S. Collaboration (EDP Sciences, 2015)
      G349.7+0.2 is a young Galactic supernova remnant (SNR) located at the distance of 11.5 kpc and observed across the entire electromagnetic spectrum from radio to high energy (HE; 0.1 GeV <E< 100 GeV) γ-rays. Radio and ...
    • H.E.S.S. detection of very high-energy γ-ray emission from the quasar PKS 0736+017 

      Abdalla, H.; Arcaro, C.; Backes, M.; Barnard, M.; Böttcher, M.; Chand, T.; Chandra, S.; Ndiyavala, H.; Schutte, H.; Seyffert, A.S.; Van der Walt, D.J.; Van Rensburg, C.; Venter, C.; Wadiazingh, Z.; Zacharias, M.; Zywucka, N.; H.E.S.S. Collaboration (EDP Sciences, 2020)
      Context. Flat-spectrum radio-quasars (FSRQs) are rarely detected at very high energies (E ≥ 100 GeV) due to their low-frequency-peaked spectral energy distributions. At present, only six FSRQs are known to emit very ...
    • H.E.S.S. discovery of very high energy γ-ray emission from PKS 0625−354 

      Abdalla, H.; Barnard, M.; Davids, I.D.; Garrigoux, T.; Ivascenko, A.; Pekeur, N.W.; Seyffert, A.S.; Spanier, F.; Sushch, I.; Van der Walt, D.J.; Van Rensburg, C.; Venter, C.; Wadiasingh, Z.; H.E.S.S. Collaboration (Oxford Univ Press, 2018)
      PKS 0625−354 (z = 0.055) was observed with the four High Energy Stereoscopic System (H.E.S.S.) telescopes in 2012 during 5.5 h. The source was detected above an energy threshold of 200 GeV at a significance level of 6.1σ. ...
    • H.E.S.S. discovery of very-high-energy gamma-ray emission of PKS 1440-389 

      Prokoph, H.; Böttcher, M.; Sushch, I.; Becherinia, Y.; Boisson, C. (Sissa Medialab, 2015)
      Blazars are the most abundant class of known extragalactic very-high-energy (VHE, E>100 GeV) gamma-ray sources. However, one of the biggest difficulties in investigating their VHE emission resides in their limited number, ...
    • H.E.S.S. discovery of VHE y-rays from the quasar PKS 1510-089 

      Abramowski, A.; Casanova, S.; Krüger, P.P.; Pekeur, N.W.; Sheidaei, F.; Venter, C.; Vorster, M.; H.E.S.S. Collaboration (EDP Sciences, 2013)
      The quasar PKS 1510-089 (z = 0.361) was observed with the H.E.S.S. array of imaging atmospheric Cherenkov telescopes during high states in the optical and GeV bands, to search for very high energy (VHE, defined as E ≥ 0.1 ...
    • The H.E.S.S. Galactic plane survey 

      Abdalla, H.; Barnard, M.; Böttcher, M.; Garrigoux, T.; Ivascenko, A.; Krüger, P.P.; Pekeur, N.W.; Seyffert, A.S.; Spanier, F.; Sushch, I.; Van der Walt, D.J.; Van Rensburg, C.; Venter, C.; Wadiasingh, Z.; Zacharias, M.; H.E.S.S. Collaboration (EDP Sciences, 2018)
      We present the results of the most comprehensive survey of the Galactic plane in very high-energy (VHE) γ-rays, including a public release of Galactic sky maps, a catalog of VHE sources, and the discovery of 16 new sources ...
    • The H.E.S.S. II GRB observation scheme 

      Parsons, R.D.; Garrigoux, T.; Schüssler, F.; Balzer, A.; Füssling, M. (AIP, 2017)
      Gamma-ray bursts (GRBs) are some of the Universe’s most enigmatic and exotic events. However, at energies above 10 GeV their behaviour remains largely unknown. Although space based telescopes such as the Fermi-LAT have ...