Browsing by Title

Now showing items 15455-15474 of 24190

    • Nuclear star formation in the hot-spot galaxy HGC 2903 

      Alonso-Herrero, A.; Ryder, S.D.; Knapen, J. (2000-06)
      Circumnuclear regions (CNR) of enhanced star formation (SF) in disk galaxies are usually associated with the presence of stellar bars. Since bars are believed to be one of the most effective mechanisms for transporting ...

    • Nuclear star formation in the hotspot galaxy NGC 2903 

      Alonso-Herrero, A.; Ryder, S.D.; Knapen, J. (2001)

    • The nuclear torus in the active galaxy NGC 1068 

      Young, S.; Packham, C.; Hough, J.; Efstathiou, A. (1996)
      We present near-infrared polarized images of the active galaxy NGC 1068. At these wavelengths, the counter-cone is observed in scattered light. At H (1.64 μm) we detect an absorption band across the counter-cone, which we ...

    • The Nucleic Acids Protocols Handbook 

      Rapley, Ralph (Humana Press, 2000)
      The Nucleic Acid Protocols Handbook is today's most comprehensive up-to-date treasury of all the key molecular biology methods-ranging from DNA extraction to gene localization in situ-needed to function effectively in the ...

    • Nucleosynthesis and early chemical evolution in galaxies 

      Tsangarides, S.; Arnone, E.; Ryan, Sean G. (2003)
      Nucleosynthesis and galactic chemical evolution are inter-linked topics that merge various fields in astronomy and physics. Speakers at the RAS discussion meeting of January 2003 combined theory and observation in understanding ...

    • Nucleosynthesis and stellar evolution 

      Thielemann, Friedrich-Karl; Argast, D.; Brachwitz, F.; Martinez-Pinedo, G.; Rauscher, T.; Liebendoerfer, M.; Mezzacappa, A.; Hoflich, P.; Nomoto, K. (2002)
      Two of the basic building blocks of galaxies are stars and the interstellar medium. The evolution of the abundance composition in the latter and especially the enrichment of heavy elements as a function of space and time ...

    • Nucleosynthesis at the proton drip line - a challenge for nuclear physics 

      Schatz, H.; Bildsten, L.; Gorres, J.; Rauscher, T.; Thielemann, Friedrich-Karl; Wiescher, Michael (American Institute of Physics (AIP), 1998)
      The rp-process in X-ray bursts is investigated using a complete and updated nuclear reaction network from H to Sr, that is coupled to a one dimensional, one zone X-ray burst model. In particular we consider 2p-capture ...

    • Nucleosynthesis in core-collapse supernova explosions triggered by a quark-hadron phase transition 

      Nishimura, Nobuya; Fischer, Tobias; Thielemann, Friedrich-Karl; Froehlich, Carla; Hempel, Matthias; Kaeppeli, Roger; Martinez-Pinedo, Gabriel; Rauscher, T.; Sagert, Irina; Winteler, Christian (2012-10-10)
      We explore heavy-element nucleosynthesis in the explosion of massive stars that are triggered by a quark-hadron phase transition during the early post-bounce phase of core-collapse supernovae. The present study is based ...

    • Nucleosynthesis in massive stars revisited 

      Rauscher, T.; Heger, A.; Hoffman, R. D.; Woosley, S.E. (2001-05-21)
      We have performed the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in a finely-zoned stellar model computed from the onset of central hydrogen burning through explosion ...

    • Nucleosynthesis in massive stars using extended adaptive nuclear reaction networks 

      Heger, A.; Rauscher, T.; Hoffman, R. D.; Woosley, S.E. (American Institute of Physics (AIP), 2001)
      We present the first calculations to follow the evolution of all stable isotopes and their abundant radioactive progenitors in a finely zoned stellar model from the onset of central hydrogen burning through explosion as a ...

    • Nucleosynthesis in massive stars with improved nuclear and stellar physics 

      Rauscher, T.; Heger, A.; Hoffman, R. D.; Woosley, S.E. (2002-09-01)
      We present the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in stellar models computed from the onset of central hydrogen burning through explosion as Type II supernovae. ...

    • Nucleosynthesis in supernovae 

      Thielemann, Friedrich-Karl; Argast, D.; Brachwitz, F.; Martinez-Pinedo, Gabriel; Rauscher, T.; Liebendoerfer, M.; Mezzacappa, A.; Hoflich, P.; Iwamoto, K.; Nomoto, K. (Astronomical Society of the Pacific, 2002)
      The evolution of gas abundances in galaxies and the enrichment of heavy elements as a function of space and time reflects the history of star formation and the lifetimes of the diverse contributing stellar objects. Supernovae ...

    • Nucleosynthesis of heavy elements in massive stars 

      Heger, A.; Woosley, S.E.; Langanke, K.; Kolbe, E.; Rauscher, T.; Hoffman, R. D. (2003-05-05)
      We present nucleosynthesis results form calculations that follow the evolution of massive stars from their birth on the main sequence through their explosion as supernovae. Our simulations include all relevant isotopes and ...

    • The nucleosynthesis of heavy elements in Stars : The key isotope 25Mg 

      Massimi, C.; Koehler, P. E.; Kopecky, S.; Mingrone, F.; Schillebeeckx, P.; Vannini, G.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Barbagallo, M.; Bécares, V.; Bečvář, F.; Belloni, F.; Berthoumieux, E.; Billowes, J.; Bosnar, D.; Brügger, M.; Calviani, M.; Calviño, F.; Cano-Ott, D.; Carrapiço, C.; Cerutti, F.; Chiaveri, E.; Chin, M.P.W.; Colonna, N.; Cortés, G.; Cortés-Giraldo, M.A.; Diakaki, M.; Domingo-Pardo, C.; Durán, I.; Dressler, R.; Eleftheriadis, C.A.; Ferrari, A.M.; Fraval, K.; Ganesan, S.; García, A. R.; Giubrone, G.; Gonçalves, I. F.; González-Romero, E.M.; Griesmayer, E.; Guerrero, C.; Gunsing, F.; Hernández-Prieto, A.; Jenkins, D. G.; Jericha, E.; Kadi, Y.; Käppeler, F.; Karadimos, D.; Kivel, N.; Krtička, M.; Kroll, J.; Lampoudis, C.; Langer, C.; Leal-Cidoncha, E.; Lederer, C.; Leeb, H.; Leong, L. S.; Losito, R.; Mallick, A.; Manousos, A.; Marganiec, J.; Martínez, T.; Mastinu, P.F.; Mastromarco, M.; Mendoza, E.; Mengoni, A.; Milazzo, P.M.; Mirea, M.; Mondalaers, W.; Paradela, C.; Pavlik, A.; Perkowski, J.; Plompen, A.J.M.; Praena, J.; Quesada, J.M.; Rauscher, T.; Reifarth, R.; Riego, A.; Robles, M.S.; Rubbia, C.; Sabaté-Gilarte, M.; Sarmento, R.; Saxena, A. C.; Schmidt, S.L.; Schumann, D.L.; Tagliente, G.; Taín, J. L.; Tarrío, D.; Tassan-Got, L.; Tsinganis, A.; Valenta, S.; Variale, V.; Vaz, P.; Ventura, A.; Vermeulen, M. J.; Vlachoudis, V.; Vlastou, R.; Wallner, A.; Ware, T.; Weigand, M.; Weiss, C.; Wright, T. J.; Žugec, P. (2014-04-14)
      We have measured the radiative neutron-capture cross section and the total neutron-induced cross section of one of the most important isotopes for the s process, the 25Mg. The measurements have been carried out at the ...

    • Nucleosynthesis yields of core-collapse supernovae and hypernovae, and galactic chemical evolution 

      Nomoto, Ken'ichi; Tominaga, Nozomu; Umeda, Hideyuki; Kobayashi, C.; Maeda, Keiichi (2006-10-17)
      We present new nucleosynthesis yields as functions of the stellar mass, metallicity, and explosion energy (corresponding to normal supernovae and hypernovae). We apply the results to the chemical evolution of the solar ...

    • Nucleosynthetic signatures of the first stars 

      Frebel, A.; Aoki, W.; Christlieb, N.; Ando, H.; Asplund, M.; Barklem, P.S.; Beers, T.C.; Eriksson, K.; Fechner, C.; Fujimoto, M.Y.; Honda, S.; Kajino, T.; Minezaki, T.; Nomoto, K.; Norris, J.E.; Ryan, Sean G.; Takada-Hidai, M.; Tsangarides, S.; Yoshii, Y. (2005-04)

    • Nucleotide oligomerization domain 1 is a dominant pathway for NOS2 induction in vascular smooth muscle cells : Comparison with Toll-like receptor 4 responses in macrophages 

      Moreno, L.; McMaster, S.K.; Gatheral, T.; Bailey, L.; Harrington, L.; Cartwright, N.; Armstrong, P.C.J.; Warner, T.D.; Paul-Clark, M.; Mitchell, J.A. (2010-08)
      Background and purpose: Gram-negative bacteria contain ligands for Toll-like receptor (TLR) 4 and nucleotide oligomerization domain (NOD) 1 receptors. Lipopolysaccharide (LPS) activates TLR4, while peptidoglycan products ...

    • Nucleotide sequence analysis of CDR3 elements of a panel of anti-peptide monoclonal antibodies recognizing parathyroid hormone related protein. 

      Rapley, Ralph; Flora, P.S; Walsh, D.J; Walker, M.R (1993)

    • Nucleotide sequence and genome organization of Cucurbit yellow stunting disorder virus RNA1 

      Coutts, Robert H.A.; Livieratos, I.C. (2003-10-01)
      The complete nucleotide sequence of Cucurbit yellow stunting disorder virus (CYSDV) RNA1, a member of the Crinivirus genus in the Closteroviridae, was determined. CYSDV RNA1 is 9126 nucleotides long and contains two ...

    • Nucleotide sequence and phylogenetic analysis of Cucurbit yellow stunting disorder virus RNA 2 

      Livieratos, I.C.; Coutts, Robert H.A. (2002-06)
      The complete nucleotide sequence of Cucurbit yellow stunting disorder virus (CYSDV) RNA 2, a whitefly (Bemisia tabaci)-transmitted closterovirus with a bi-partite genome, is reported. CYSDV RNA 2 is 7,281 nucleotides long ...