Now showing items 1866-1885 of 4581

    • The H-test probability distribution revisited: Improved sensitivity 

      Busching, Ingo; De Jager, Ocker Cornelis (EDP Sciences, 2010)
    • H.E.S.S. constraints on dark matter annihilations towards the sculptor and carina dwarf galaxies 

      Abramowski, A.; Acero, F.; Aharonian, F.; Akhperjanian, A.G.; Anton, G.; Barnacka, A.; Barres de Almeida, U.; Bazer-Bachi, A.R.; Becherini, Y.; Becker, J.; Behera, B.; Bernlöhr, K.; Bochow, A.; Boisson, C.; Bolmont, J.; Bordas, P.; Borrel, V.; Brucker, J.; Brun, F.; Brun, P.; Bulik, T.; Büsching, Ingo; Carrigan, S.; Casanova, S.; Cerruti, M.; Chadwick, P.M.; Charbonnier, A.; Chaves, R.C.G.; Cheesebrough, A.; Chounet, L. M.; Clapson, A.C.; Coignet, G.; Conrad, J.; Dalton, M.; Daniel, M.K.; De Jager, Ocker Cornelis; De Los Reyes, R.; De Naurois, M.; De Oña Wilhelmi, E.; Degrange, B.; Deil, C.; Dickinson, H.J.; Djannati-Ataï, A.; Domainko, W.; Drury, L.O'C.; Dubois, F.; Dubus, G.; Dyks, J.; Dyrda, M.; Egberts, K.; Eger, P.; Espigat, P.; Fallon, L.; Farnier, C.; Fegan, S.; Feinstein, F.; Fernandes, M.V.; Fiasson, A.; Fontaine, G.; Förster, A.; Füßling, M.; Gallant, Y.A.; Gast, H.; Gérard, L.; Gerbig, D.; Giebels, B.; Glicenstein, J.F.; Glück, B.; Goret, P.; Göring, D.; Hague, J.D.; Hampf, D.; Hauser, M.; Heinz, S.; Heinzelmann, G.; Henri, G.; Hermann, G.; Hinton, J. A.; Hoffmann, A.; Hofmann, W.; Hofverberg, P.; Horns, D.; Jacholkowska, A.; Jahn, C.; Jamrozy, M.; Jung, I.; Kastendieck, M. A.; Katarzyński, K.; Katz, U.; Kaufmann, S.; Keogh, D.; Kerschhaggl, M.; Khangulyan, D.; Khélifi, B.; Klochkov, D.; Kluzniak, W.; Kneiske, T.; Komin, Nu; Kosack, K.; Kossakowski, R.; Laffon, H.; Lamanna, G.; Lennarz, D.; Lohse, T.; Lopatin, A.; Lu, C.C.; Marandon, V.; Marcowith, A.; Masbou, J.; Maurin, D.; Maxted, N.; Mccomb, T.J L.; Medina, M.C.; Méhault, J.; Moderski, R.; Moulin, E.; Naumann, C.L.; Naumann-Godo, M.; Nedbal, D.; Nekrassov, D.; Nguyen, N.; Nicholas, B.; Niemiec, J.; Nolan, S.J.; Ohm, S.; Olive, J.F.; Opitz, B.; Ostrowski, M.; Panter, M.; Paz Arribas, M.; Pedaletti, G.; Pelletier, G.; Petrucci, P.O.; Pita, S.; Pühlhofer, G.; Punch, M.; Quirrenbach, A.; Raue, M.; Rayner, S.M.; Reimer, A.; Reimer, O.; Renaud, M.; Rieger, F.; Ripken, J.; Rob, L.; Rosier-Lees, S.; Rowell, G.; Rudak, B.; Rulten, C.B.; Ruppel, J.; Ryde, F.; Sahakian, V.; Santangelo, A.; Schlickeiser, R.; Schöck, F.M.; Schönwald, A.; Schwanke, U.; Schwarzburg, S.; Schwemmer, S.; Shalchi, A.; Sikora, M.; Skilton, J.L.; Sol, H.; Spengler, G.; Stawarz, Ł.; Steenkamp, R.; Stegmann, C.; Stinzing, F.; Sushch, I.; Szostek, A.; Tavernet, J.P.; Terrier, R.; Tibolla, O.; Tluczykont, M.; Valerius, K.; Van Eldik, C.; Vasileiadis, G.; Venter, Christo; Vialle, J.P.; Viana, A.; Vincent, P.; Vivier, M.; Völk, H J.; Volpe, F.; Vorobiov, S.; Vorster, Michael Johannes; Wagner, S.J.; Ward, M. (Elsevier Science, 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. discovery of VHE y–rays from the quasar PKS 1510–089 

      Abramowski, A.; Acero, F.; Vorster, Michael Johannes; Venter, Christo; Kruger, Petrus Paulus (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 ...
    • H.E.S.S. observations of the binary system PSR B1259–63/LS 2883 around the 2010/2011 periastron passage 

      Abramowski, A.; Acero, F.; Vorster, Michael Johannes; Venter, Christo; Kruger, Petrus Paulus (EDP Sciences, 2013)
      Aims. We present very high energy (VHE; E > 100 GeV) data from the -ray binary system PSR B1259-63/LS 2883 taken around its periastron passage on 15th of December 2010 with the High Energy Stereoscopic System (H.E.S.S.) ...
    • H.E.S.S. observations of the globular clusters NGC 6388 and M15 and search for a dark matter signal 

      Venter, Christo; Vorster, Michael Johannes; Büsching, Ingo; De Jager, Ocker Cornelis (IOP Publishing, 2011)
      Observations of the globular clusters (GCs) NGC 6388 and M15 were carried out by the High Energy Stereoscopic System array of Cherenkov telescopes for a live time of 27.2 and 15.2 hr, respectively. No gamma-ray signal is ...
    • H.G. Stoker (1899–1993) as Christelike filosoof: ’n historiese legende en ikoon, of nog steeds ’n kontemporêre mentor? 

      10169628 - Van der Walt, Barend Johannes (OASIS, 2013)
      OPSOMING: ’n Tradisie, wat ’n filosofiese tradisie insluit, kan alleen lewend bly as die verhaal daarvan aan die jonger geslag oorvertel word. Daarom bied hierdie inleidende en oorsigtelike artikel aan die leser iets oor ...
    • H2 production through electro-oxidation of SO2: identifying the fundamental limitations 

      Kriek, Roelof J.; Rossmeisl, Jan; Siahrostami, Samira; Björketun, Márten E. (Royal Society of Chemistry, 2014)
      Sulphur dioxide (SO2), a known industrial pollutant and pulmonary irritant, is emitted to the atmosphere in excess of 120 Mt per annum. Great strides have been taken to reduce SO2 emissions, but with the growth of ...
    • H2SO4 stability of PBI-blend membranes for SO2 electrolysis 

      Chromik, A.; Kerres, J.; Krajinovic, K.; Schoeman, H.; Krieg, H.M.; Krüger, A.J. (Elsevier, 2012)
      For hydrogen to become a serious contender for replacing fossil fuels, the manufacturing thereof has to be further investigated. One such process, the membrane based Hybrid Sulfur (HyS) process, where hydrogen is produced ...
    • Habakkuk: a guide to prayer 

      Rochester, Kathleen Margaret (Sage, 2012)
      We often do not know how to pray, especially when we are faced with overwhelming questions, blatant injustice or likely disaster. The book of Habakkuk can profitably be seen as a prayer guide, especially for such times. ...
    • Habitat preferences and movement of adult yellowfishes in the Vaal River, South Africa 

      O'Brien, Gordon C.; Jacobs, Francois; Wepener, Victor; Smit, Nicholas J.; Cronje, Linda (Academy of Science of South Africa (ASSAf), 2013)
      The yellowfishes of the Vaal River (Labeobarbus kimberleyensis and L. aeneus) are charismatic, socially and economically important fishes, but very little is known about their interspecies habitat preferences and movement. ...
    • The habits of highly effective community development practitioners 

      Weyers, Michael Louie (Taylor & Francis, 2011)
      This paper is the result of a study aimed at answering the question: ‘What makes effective community development practitioners effective?’ In it, all the articles published over a 10-year period in the Community Development ...
    • Halogenated pollutants in terrestrial and aquatic bird eggs: converging patterns of pollutant profiles, and impacts and risks from high levels 

      Bouwman, Hindrik; Viljoen, Ignatius M.; Quinn, Laura P.; Polder, Anuschka (ELSEVIER, 2013)
      We investigated the presence, levels, relationships, and risks of HCHs, DDTs, chlordanes, mirex, PCBs, and brominated flame retardants (BFRs) in terrestrial and aquatic bird eggs from an area in South Africa where DDT is ...
    • Handling a crisis via a combination of human initiative and godly direction: insights from the Book of Ruth 

      Branch, Robin Gallaher (AOSIS, 2012)
      The biblical text introduces Ruth, a Moabite woman, at a time of personal crisis. She faces destitution. Life has handed her multiple blows, amongst them widowhood and childlessness. Her single asset? Naomi, a cranky, ...
    • Handling learner discipline problems: a psycho-social whole school approach 

      Kourkoutas, Elias E.; Wolhuter, Charl C. (OASIS, 2013)
      Learner discipline is a problem in South African schools. The most serious aspect is addressing learner-discipline problems. Research has shown that teachers are at a loss for effective methods for maintaining discipline. ...
    • The harmonisation of laws and policies within the African Union and the viability of legal pluralism as an alternative 

      Ferreira, Gert Marthinus; Ferreira-Snyman, M P (Social Science Electronic Publishing, 2010)
    • Harvesting of Hartbeespoort Dam micro–algal biomass through sand filtration and solar drying 

      Brink, Jacobus; Marx, Sanette (ELSEVIER, 2013)
      Renewable energy sources such as biomass are becoming more and more important as alternative to fossil fuels. One of the most exciting new sources of biomass is microalgae. One of the major obstacles in the commercial production ...
    • Has the Constitutional Court found the lost ball in the high weeds? The interpretation of section 231 of the South African Constitution' The Comparative and International Law Journal of Southern Africa (2009) 264-271 

      Ferreira, Gerrit; Scholtz, Werner (CILSA, 2009)
      A critical discussion of President of the Republic of South Africa and Others v Quagliani and Others case CCT 24/08 (CC)(unreported) decided on 21 January 2009
    • Have milk, maas or yoghurt every day:  a food–based dietary guideline for South Africa 

      Vorster, H.H.; Wenhold, F.A.M.; Wright, H.H.; Wentzel-Viljoen, E.; Venter, C.S.; Vermaak, M. (MedPharm Publications, 2013)
      A national working group recently reached consensus that a guideline message for milk consumption should form part of the set of revised food-based dietary guidelines (FBDGs) for South Africa. The message was formulated ...
    • He is Risen! A play based on Acts 1:1-12 

      Branch, Robin Gallaher (Gereformeerde Teologiese Vereniging, 2010)