• [1-(Ethoxycarbonyl)-1-cyclopentyl]triphenylphosphonium Bromide, [(C6H5)3PC(C4H8)(COOC2H5)]Br 

      Boys Mardones, Daphne; Araya Maturana, Ramiro; Gonzáles Campos, Oscar Cesar; Manríquez Castro, Víctor (1995)
      The crystal structure of the title phosphonium salt consists of a tetrahedral (C6Hs)P +C(C4HS)- (COOCH2CH3) cation and a Br- anion. The triphenylphosphonium group has P---C(phenyl) distances which are equal within ...
    • 1-ethyl-3-(4-hydroxy-3-methoxyphenyl)-6-methoxy-2-methylindan-5-ol 

      Alvarez Thon, Luis; Carrasco Altamirano, Héctor; Espinoza Catalán, Luis; Gallardo Araya, Claudio; Cardona, Wilson; Ibáñez, Andrés (BLACKWELL PUBLISHING, 2006-05)
      Molecules in the title crystal structure, C20H24O4, are linked into chains of R-4(4)(8) rings along [010] and these chains are linked into sheets via weak C-H center dot center dot center dot pi(arene) interactions. These ...
    • The 1877–1878 El Niño episode: associated impacts in South America 

      Aceituno Gutiérrez, Patricio; Prieto, María del Rosario; Solari, María Eugenia; Martínez, Alejandra; Poveda, Germán; Falvey, Mark (Springer, 2009)
      At times when attention on climate issues is strongly focused on the assessment of potential impacts of future climate change due to the intensification of the planetary greenhouse effect, it is perhaps pertinent to look ...
    • THE 1990 CALAN TOLOLO SUPERNOVA SEARCH 

      Hamuy Wackenhut, Mario; Maza Sancho, José; Wischnjewsky, M.; Antezana, Roberto; González, L. E.; Barrientos, F. (AMER INST PHYSICS, 1993-12)
      We have started a search for supernovae as a collaboration between the University of Chile and the Cerro Tololo Inter-American Observatory, with the aim of producing a moderately distant (0.01 < z < 0.10) sample of Type ...
    • 2-(2-pyridylamino)pyridinium tetrachloridozincate(II) 

      Venegas Yazigi, Diego; Castillo, Carolina; Paredes García, Verónica; Vega, Andrés; Spodine Spiridonova, Evgenia (BLACKWELL PUBLISHING, 2008-06)
      The structure of the title compound, (C10H10N3)(2)[ZnCl4], is composed of C10H9N3H+ ( DPAH(+)) cations and [ ZnCl4](2-) anions. The two pyridyl rings of DPAH+ are approximately coplanar, with a dihedral angle of 7.2 ( ...
    • The 2014 Alma Long Baseline Campaign: An Overview 

      Fomalont, E. B.; Franco Hernández, Ramiro; Hardy Raskovan, Eduardo (IOP Publishing, 2015)
      A major goal of the Atacama Large Millimeter/submillimeter Array (ALMA) is to make accurate images with resolutions of tens of milliarcseconds, which at submillimeter (submm) wavelengths requires baselines up to similar ...
    • 20th Conference of the Collaboration Researchers International Working Group - CRIWG 2014 

      Baloian Tataryan, Nelson; Zurita Alarcón, Gustavo (IEEE, 2015)
      This special number of the IEEE Latin America Transactions includes a selection of the best papers presented at the 20th Conference of the Collaboration Researchers International Working Group, which took place in Santiago ...
    • 250 years of sardine and anchovy scale deposition record in Mejillones Bay, northern Chile 

      Valdés, Jorge; Ortlieb, Luc; Gutiérrez, Dimitri; Marinovic, Luis; Vargas Easton, Víctor; Sifeddine, Abdel (PERGAMON-ELSEVIER SCIENCE LTD, 2008-10)
      Marine oxygen-deficient environments with high sedimentation rates and high primary productivity can provide relevant information regarding variations of ocean–climatic conditions in the past. In the Humboldt current ...
    • 2MASS J035523. 37+ 113343.7: A Young, Dusty, Nearby, Isolated Brown Dwarf Resembling a Giant Exoplanet 

      Faherty, Jacqueline K.; Rice, Emily L.; Cruz, Kelle L.; Mamajek, Eric E.; Núñez, Alejandro (The American Astronomical Society, 2013-01)
      We present parallax and proper motion measurements, near-infrared spectra, and Wide-field Infrared Survey Explorer photometry for the low surface gravity L5γ dwarf 2MASS J035523.37+113343.7 (2M0355). We use these data ...
    • The 31 deg2 release of the stripe 82 x-ray survey: the point source catalog 

      La Massa, Stephanie M.; Urry, C. Megan; Cappelluti, Nico; Böhringer, Hans; Comastri, Andrea; Glikman, Eilat; Richards, Gordon; Ananna, Tonima; Brusa, Marcella; Cardamone, Carie; Chon, Gayoung; Civano, Francesca; Farrah, Duncan; Gilfanov, Marat; Green, Paul; Komossa, S.; Lira Teillery, Paulina; Makler, Martin; Marchesi, Stefano; Pecoraro, Robert; Ranalli, Piero; Salvato, Mara; Schawinski, Kevin; Stern, Daniel; Treister, Ezequiel; Viero, Marco (Cornell University, 2015)
      We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg2 of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy field. In total, 6181 unique X-ray sources are ...
    • 3D kinematics of white dwarfs from the SPY project. II. 

      Pauli, E.-M.; Napiwotzki, R.; Heber, U.; Altmann, Martin; Odenkirchen, M. (EDP SCIENCES S A, 2006-02)
      We present the kinematics of a sample of 398 DA white dwarfs from the SPY project (ESO SN Ia Progenitor surveY) and discuss kinematic criteria for distinguishing of thin-disk, thick-disk, and halo populations. This is the ...
    • 3D sound interactive environments for blind children problem solving skills 

      Sánchez, Jaime; Sáenz, Mauricio (TAYLOR & FRANCIS LTD, 2006-08)
      Audio-based virtual environments have been increasingly used to foster cognitive and learning skills. A number of studies have also highlighted that the use of technology can help learners to develop effective skills such ...
    • 4-Allyl-2-methoxy-5-nitrophenyl acetate 

      Carrasco Altamirano, Héctor; Espinoza Catalán, Luis; Gallardo Araya, Claudio; Cardona, Wilson; Ibáñez, Andrés; Alvarez Thon, Luis (BLACKWELL, 2006-05)
      Molecules of the title compound, C12H13NO5, are linked into chains via weak C-H (...)pi( allyl) interactions and these chains are linked into sheets via C-H (...) O contacts; the sheets, in turn, are interconnected via ...
    • 4-{3,5-Dimethyl-4-[(E)-(4-methylphenyl)diazenyl]-1H-pyrazol-1-yl}benzonitrile 

      Bustos, Carlos; Schott, Eduardo; Mac-Leod-Carey, Desmond A.; Ibáñez, Andrés; Alvarez Thon, Luis (BLACKWELL, 2006-06)
      Mol-ecules in the title compound, C19H17N5, are linked into chains via weak C-H-...pi(cyano) inter-actions, and these chains are linked via C-H-...pi(arene) interactions to form a three-dimensional structure of parallel sheets.
    • 60 GHz Millimeter-wave Bottom-Layer Solutions: Multiplexing Access, Energy Awareness, and Peak-to-Average-Power Ratio 

      Estévez Montero, Claudio; Azurdia Meza, César (IEEE, 2015)
      A clear trend shows that cells are smaller, more homogeneously distributed, higher frequency oriented, and more energy conscious. This points toward wireless systems that implement millimeter-wave modulation; therefore, ...
    • 76 T dwarfs from the UKIDSS LAS: benchmarks, kinematics and an updated space density 

      Burningham, Ben; Cardoso, C. V.; Smith, L.; Leggett, S. K.; Smart, R. L.; Mann, A. W.; Dhital, S.; Lucas, P. W.; Tinney, C. G.; Pinfield, D. J.; Zhang, Z.; Morley, C.; Saumon, D.; Aller, K.; Littlefair, S. P.; Homeier, D.; Lodieu, N.; Deacon, N.; Marley, M. S.; Spaandonk, L. van; Baker, D.; Allard, F.; Andrei, A. H.; Canty, J.; Clarke, J.; Day-Jones, A. C.; Dupuy, T.; Fortney, J. J.; Gomes, J.; Ishii, M.; Jones, H. R. A.; Liu, M.; Magazzú, A.; Marocco, F.; Murray, D. N.; Rojas-Ayala, B.; Tamura, M. (Oxford University Press on behalf of the Royal Astronomical Society, 2013-07)
      We report the discovery of 76 new T dwarfs from the UKIRT Infrared Deep Sky Survey (UKIDSS) Large Area Survey (LAS). Near-infrared broad- and narrow-band photometry and spectroscopy are presented for the new objects, along ...
    • 7D-folding integral in a density-dependent microscopic optical model potential for nucleon-nucleus scattering 

      Arellano Sepúlveda, Hugo; Bauge, E. (AMER PHYSICAL SOC, 2011-09-14)
      Microscopic optical model potentials, based on density-dependent effective interactions, involve multidimensional integrals to account for the full Fermi motion of the target struck nucleon throughout the nucleus. If a ...
    • 8-13 mu m dust emission features in Galactic bulge planetary nebulae 

      Roche, P. F.; Aitken, D. K.; Casassus Montero, Simón; Smith, C. H. (BLACKWELL SCIENCE LTD, 2001-11-01)
      A sample of 25 infrared-bright planetary nebulae (PNe) towards the Galactic bulge is analysed through 8-13 mum spectroscopy. The classification of the warm dust emission features provides a measure of the C/O chemical ...
    • 870 mu m continuum observations of the bubble-shaped nebula Gum 31 

      Duronea, N.; Vásquez, J.; Gómez, L.; Cappa, C.; Firpo, V.; López Caraballo, C.; Rubio López, Mónica (EDP Sciences, 2015)
      Aims. We present here a study of the cold dust in the close environs of the ring nebula Gum 31. We aim at deriving the physical properties of the molecular gas and dust associated with the nebula, and investigating its ...
    • A branch-and-cluster coordination scheme for selecting prison facility sites under uncertainty 

      Hernández, Patricio; Alonso-Ayuso, Antonio; Bravo, Fernanda; Escudero, Laureano F.; Guignard, Monique; Marianov Kluge, Vladimir; Weintraub Pohorille, Andrés Félix (PERGAMON-ELSEVIER, 2012-09)
      A multi-period stochastic model and an algorithmic approach to location of prison facilities under uncertainty are presented and applied to the Chilean prison system. The problem consists of finding locations and sizes of ...