Now showing items 475-494 of 8729

  • An asymmetric pericyclic cascade approach to oxindoles 

    Richmond, Edward (University of St Andrews, 2014-06) - Thesis
    The research in this thesis describes an asymmetric pericyclic cascade approach to the synthesis of a range of enantioenriched oxindoles using enantiopure oxazolidine derived nitrones and disubstituted ketenes. Chapter 1 ...
  • Asymmetric synthesis of tri- and tetrasubstituted trifluoromethyl dihydropyranones from alpha-aroyloxyaldehydes via NHC redox catalysis 

    Davies, Alyn T.; Pickett, Philip M.; Slawin, Alexandra M. Z.; Smith, Andrew D. (2014-08) - Journal article
    The asymmetric synthesis of tri- and tetrasubstituted trifluoromethyl dihydropyranones via an NHC-catalyzed redox process, introducing methyl, benzyl, and aryl substituents to the C(5) position, is presented. Their ...
  • At home in national parks : a study of power, knowledge and discourse in Banff National Park and Cairngorms National Park 

    Rettie, Kathleen (University of St Andrews, 2006) - Thesis
    National Parks bear greater implications than simply preserving or conserving pockets of landscape. They evoke values of conservation versus development, livelihood economics, environmental stewardship and personal ...
  • At the borders of arthood : a methodology for the definition of art 

    Dos Santos, Miguel F. (University of St Andrews, 2013-11-30) - Thesis
    The first-order debate about the definition of art focuses on the ‘What is art?’ question and those who engage in it answer the question by putting forward definitions (or at least characterizations) of art. The second-order ...
  • At the boundary of place : rethinking the provenance of early Christian architecture 

    Beesley, Mark B. (University of St Andrews, 2010-11-30) - Thesis
    Archaeologists and historians have sought to understand the architecture of the early church using methods common to their respective fields of inquiry. This has included an approach to architecture which classifies buildings ...
  • At the centre: a box full of encounters 

    Aucock, Janet; Proven, Jackie (University of St Andrews, 2012-07-10) - Conference poster
    OR2012 in Scotland coincides with the celebrations for the 600th anniversary of the founding of the University of St Andrews. We describe the shared and collaborative repository infrastructure and services which are being ...
  • At the transition from invertebrates to vertebrates a novel GnRH-like peptide emerges in amphioxus 

    Roch, Graeme; Tello, Javier; Sherwood, Nancy (2013-12-20) - Journal article
    Gonadotropin-releasing hormone (GnRH) is a critical reproductive regulator in vertebrates. Homologous peptides are also found in invertebrates, with a variety of characterized functions. In the amphioxus, an invertebrate ...
  • ATG5 is essential for ATG8-dependent autophagy and mitochondrial homeostasis in Leishmania major 

    Williams, Roderick A. M.; Smith, Terry K.; Cull, Benjamin; Mottram, Jeremy C.; Coombs, Graham H. (2012-05-17) - Journal article
    Macroautophagy has been shown to be important for the cellular remodelling required for Leishmania differentiation. We now demonstrate that L. major contains a functional ATG12-ATG5 conjugation system, which is required ...
  • The Atlas3D project - XXIV. The intrinsic shape distribution of early-type galaxies 

    Weijmans, Anne-Marie; de Zeeuw, P. T.; Emsellem, Eric; Krajnovic, Davor; Lablanche, Pierre-Yves; Alatalo, Katherine; Blitz, Leo; Bois, Maxime; Bournaud, Frederic; Bureau, Martin; Cappellari, Michele; Crocker, Alison; Davies, Roger; Davis, Timothy; Duc, Pierre-Alain; Khochfar, Sadegh; Kuntschner, Harald; McDermid, Richard; Morganti, Raffaella; Naab, Thorsten; Oosterloo, Tom; Sarzi, Marc; Scott, Nicholas; Serra, Paolo; Verdoes Kleijn, Gijs; Young, Lisa (2014-11-11) - Journal article
    We use the Atlas3D sample to perform a study of the intrinsic shapes of early-type galaxies, taking advantage of the available combined photometric and kinematic data. Based on our ellipticity measurements from the Sloan ...
  • The ATLAS3D project - XXV: Two-dimensional kinematic analysis of simulated galaxies and the cosmological origin of fast and slow rotators 

    Naab, T.; Oser, L.; Emsellem, E.; Cappellari, M.; Krajnovic, D.; McDermid, R. M.; Alatalo, K.; Bayet, E.; Blitz, L.; Bois, M.; Bournaud, F.; Bureau, M.; Crocker, A.; Davies, R. L.; Davis, T. A.; de Zeeuw, P. T.; Duc, P.-A.; Hirschmann, M.; Johansson, P. H.; Khochfar, S.; Kuntschner, H.; Morganti, R.; Oosterloo, T.; Sarzi, M.; Scott, N.; Serra, P.; van de Ven, G.; Weijmans, A.; Young, L. M. (2014-11-11) - Journal article
    We present a detailed two-dimensional stellar dynamical analysis of as ample of 44 cosmological hydrodynamical simulations of individual central galaxies with stellar masses of 2 x 1010Msun ∼≤ Mstar ∼≤ 6x 1011Msun. Kinematic ...
  • The ATLAS3D project - XXVI. HI discs in real and simulated fast and slow rotators 

    Serra, Paolo; Oser, Ludwig; Krajnovic, Davor; Naab, Thorsten; Oosterloo, Tom; Morganti, Raffaella; Cappellari, Michele; Emsellem, Eric; Young, Lisa M.; Blitz, Leo; Davis, Timothy A.; Duc, Pierre-Alain; Hirschmann, Michaela; Weijmans, Anne-Marie; Alatalo, Katherine; Bayet, Estelle; Bois, Maxime; Bournaud, Frederic; Bureau, Martin; Davies, Roger L.; de Zeeuw, P. T.; Khochfar, Sadegh; Kuntschner, Harald; Lablanche, Pierre-Yves; McDermid, Richard M.; Sarzi, Marc; Scott, Nicholas (2014-11-11) - Journal article
    One quarter of all nearby early-type galaxies (ETGs) outside Virgo host a disc/ring of HI with size from a few to tens of kpc and mass up to ~ 1e+9 solar masses. Here we investigate whether this HI is related to the presence ...
  • The ATLAS3D project - XXVII. Cold gas and the colours and ages of early-type galaxies 

    Young, L. M.; Scott, N.; Serra, P.; Alatalo, K.; Bayet, E.; Blitz, L.; Bois, M.; Bournaud, F.; Bureau, M.; Crocker, A. F.; Cappellari, M.; Davies, R. L.; Davis, T. A.; de Zeeuw, P. T.; Duc, P.-A.; Emsellem, E.; Khochfar, S.; Krajnovic, D.; Kuntschner, H.; McDermid, R. M.; Morganti, R.; Naab, T.; Oosterloo, T.; Sarzi, M.; Weijmans, A.-M. (2014-11-11) - Journal article
    We present a study of the cold gas contents of the Atlas3D early-type galaxies, in the context of their optical colours, near-UV colours, and Hβ absorption line strengths. Early-type (elliptical and lenticular) galaxies ...
  • The ATLAS3D Project - XXVIII. Dynamically-driven star formation suppression in early-type galaxies 

    Davis, Timothy A.; Young, Lisa M.; Crocker, Alison F.; Bureau, Martin; Blitz, Leo; Alatalo, Katherine; Emsellem, Eric; Naab, Thorsten; Bayet, Estelle; Bois, Maxime; Bournaud, Frederic; Cappellari, Michele; Davies, Roger L.; de Zeeuw, P. T.; Duc, Pierre-Alain; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; McDermid, Richard M.; Morganti, Raffaella; Oosterloo, Tom; Sarzi, Marc; Scott, Nicholas; Serra, Paolo; Weijmans, Anne-Marie (2014-11-11) - Journal article
    We present measurements of the star formation rate (SFR) in theearly-type galaxies (ETGs) of the ATLAS3D sample, based on Wide-field Infrared Survey Explorer (WISE) 22um and Galaxy Evolution Explorer (GALEX) far-ultraviolet ...
  • The Atlas3D Project - XXX. Star formation histories and stellar population scaling relations of early-type galaxies 

    McDermid, Richard M.; Alatalo, Katherine; Blitz, Leo; Bournaud, Frederic; Bureau, Martin; Cappellari, Michele; Crocker, Alison F.; Davies, Roger L.; Davis, Timothy A.; de Zeeuw, P. T.; Duc, Pierre-Alain; Emsellem, Eric; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; Morganti, Raffaella; Naab, Thorsten; Oosterloo, Tom; Sarzi, Marc; Scott, Nicholas; Serra, Paolo; Weijmans, Anne-Marie; Young, Lisa M. (2015-04-21) - Journal article
    We present the stellar population content of early-type galaxies from the ATLAS3D survey. Using spectra integrated within apertures covering up to one effective radius, we apply two methods: one based on measuring line-strength ...
  • The Atlas3D project - XXXI. Nuclear radio emission in nearby early-type galaxies 

    Nyland, Kristina; Young, Lisa M.; Wrobel, Joan M.; Sarzi, Marc; Morganti, Raffaella; Alatalo, Katherine; Blitz, Leo; Bournaud, Frederic; Bureau, Martin; Cappellari, Michele; Crocker, Alison F.; Davies, Roger L.; Davis, Timothy A.; de Zeeuw, P. T.; Duc, Pierre-Alain; Emsellem, Eric; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; McDermid, Richard M.; Naab, Thorsten; Oosterloo, Tom; Scott, Nicholas; Serra, Paolo; Weijmans, Anne-Marie (2016-02-24) - Journal article
    We present the results of a high-resolution, 5 GHz, Karl G. Jansky Very Large Array study of the nuclear radio emission in a representative subset of the ATLAS3D survey of early-type galaxies (ETGs). We find that 51 ± 4% ...
  • The Atlas3D project -- XXIX. The new look of early-type galaxies and surrounding fields disclosed by extremely deep optical images 

    Duc, Pierre-Alain; Cuillandre, Jean-Charles; Karabal, Emin; Cappellari, Michele; Alatalo, Katherine; Blitz, Leo; Bournaud, Frederic; Bureau, Martin; Crocker, Alison F.; Davies, Roger L.; Davis, Timothy A.; de Zeeuw, P. T.; Emsellem, Eric; Khochfar, Sadegh; Krajnovic, Davor; Kuntschner, Harald; McDermid, Richard M.; Michel-Dansac, Leo; Morganti, Raffaella; Naab, Thorsten; Oosterloo, Tom; Paudel, Sanjaya; Sarzi, Marc; Scott, Nicholas; Serra, Paolo; Weijmans, Anne-Marie; Young, Lisa M. (2015-01) - Journal article
    Galactic archaeology based on star counts is instrumental to reconstruct the past mass assembly of Local Group galaxies. The development of new observing techniques and data reduction, coupled with the use of sensitive ...
  • Atmospheres of brown dwarfs 

    Helling, Christiane; Casewell, Sarah (2014) - Journal item
    Brown Dwarfs are the coolest class of stellar objects known to date. Our present perception is that Brown Dwarfs follow the principles of star formation, and that Brown Dwarfs share many characteristics with planets. Being ...
  • Atmospheric drying as the main driver of dramatic glacier wastage in the southern Indian Ocean 

    Favier, V.; Verfaillie, D.; Berthier, E.; Menegoz, M.; Jomelli, V.; Kay, J. E.; Ducret, L.; Malbéteau, Y.; Brunstein, D.; Gallée, H.; Park, Y. -H.; Rinterknecht, V. (2016-09-01) - Journal article
    The ongoing retreat of glaciers at southern sub-polar latitudes is particularly rapid and widespread. Akin to northern sub-polar latitudes, this retreat is generally assumed to be linked to warming. However, no long-term ...
  • Atmospheric electrification in dusty, reactive gases in the solar system and beyond 

    Helling, Christiane; Harrison, R. Giles; Honary, Farideh; Diver, Declan A.; Aplin, Karen; Dobbs-Dixon, Ian; Ebert, Ute; Inutsuka, Shu-ichiro; Gordillo-Vazquez, Francisco J.; Littlefair, Stuart (2016-07) - Journal item
    Detailed observations of the solar system planets reveal a wide variety of local atmospheric conditions. Astronomical observations have revealed a variety of extrasolar planets none of which resembles any of the solar ...
  • Atmospheric origins of perchlorate on Mars and in the Atacama 

    Catling, D. C.; Claire, Mark; Zahnle, K. J.; Quinn, R. C.; Clark, B. C.; Hecht, M. H.; Kounaves, S. (2010) - Journal article
    Isotopic studies indicate that natural perchlorate is produced on Earth in arid environments by the oxidation of chlorine species through pathways involving ozone or its photochemical products. With this analogy, we propose ...