Now showing items 7416-7435 of 16692

    • 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 ...
    • H2SO4 stability of PBI–blend membranes for SO2 electrolysis Schoeman 

      Schoeman, Johannes Gerhardus (North-West University, 2011)
      Alternative energy sources are needed if the current use of energy is to be sustained while reducing global warming. A possible alternative energy source that has significant potential is hydrogen. For hydrogen to become ...
    • Haarhoff, D. 1991. The wild South West. Frontier myths and metaphors in literature set in Namibia. 1760 - 1988. [Boek resensie] 

      Coetzee, E R (Departement van Geskiedenis Randse Afrikaanse Universiteit / Department of History Rand Afrikaans University, 1992)
    • 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 ...
    • Haemostatic markers and cardiovascular function in black and white South Africans : the SABPA study 

      Lammertyn, Leandi (2015)
      Motivation In the black population of South Africa, cardiovascular disease (CVD) is rapidly increasing due to urbanisation. Stroke is usually accompanied by a prothrombotic haemostatic profile. Changing lifestyle factors ...
    • Haemostatic variables in African adolescents : the PLAY study 

      Nienaber, Cornelie (North-West University, 2006)
      Cardiovascular disease (CVD) is a major cause of adult morbidity and mortality in developed as well as in developing countries. In black population groups, stroke is more prominent than ischaemic heart disease. This may ...
    • Hakkel en 'n waardering van die tegniek van Tomatis by die remediëring daarvan 

      Van Jaarsveld, Pieter Engelbertus (Potchefstroom University for Christian Higher Education, 1974)
      No abstract available
    • Hall, M. 1987. The changing past: farmers, kings and traders in southern Africa. [Book review] 

      Gebhard, W R L (Afdeling Plaaslike en Streekgeskiedenisnavorsing van die lnstituut vir Geskiedenisnavorsing, RGN / Division for Local and Regional History Research, Institute for Historical Research, HSRC, 1988)
    • Hall, M. 1992. The changing past: farmers, kings and traders in Southern Africa 200 - 1860. [Book review] 

      Goodwin, A R (The South African Society of History Teaching, 1994)
    • Hallmarks of irresponsible and unresponsive governance: Internal xenophobic attacks in South Africa’s municipalities 

      Makwembere, S (2015)
      Municipalities face major pressures to demonstrate that they are responsible and responsive institutions. At present, different policies and institutions exist to guide local governance in pursuit of numerous ideals ...