Now showing items 6651-6670 of 6971

    • Álvarez, Javier; Mpodozis Marín, Constantino; Blanco Quintero, Idael; García Casco, Antonio; Arriagada Ortega, César; Morata Céspedes, Diego (Elsevier, 2013)
      The La Pampa Gneisses are an enclave of orthogneisses emplaced within late Paleozoic to Triassic granitoids of the Chollay Batholith, in the Cordillera Frontal, to the east of Vallenar. Previous geochronological data (a ...
    • Deckart, Katja; Hervé Allamand, Francisco; Fanning, Mark; Ramírez, Valeria; Calderón, Mauricio; Godoy, Estanislao (2014)
      The Coastal Batholith of south-central Chile between latitudes 33° and 40°S is composed of calc-alkaline granitoids emplaced in a relatively restricted time period. New SHRIMP U-Pb zircon ages on eight quartzdioritic to ...
    • Vargas Easton, Víctor; Palacios Monasterio, Carlos; Reich Morales, Martín; Luo, Shangde; Shen, Chuan-Chou; González, Gabriel; Wu, Yi-Chen (Elsevier, 2011)
      The convergence of the Nazca and South American plates along the subduction margin of the central Andes results in large subduction earthquakes and tectonic activity along major fault systems. Despite its relevance, the ...
    • Baloian Tataryan, Nelson; Zurita Alarcón, Gustavo (2012)
      Knowledge management is a critical activity for any organization. It has been said to be a differentiating factor and an important source of competitiveness if this knowledge is constructed and shared among its members, ...
    • Henshaw, Jonathan D.; Kruijssen, J. M. Diederik; Longmore, Steven N.; Riener, Manuel; Leroy, Adam K.; Rosolowsky, Erik; Ginsburg, Adam; Battersby, Cara; Chevance, Melanie; Meidt, Sharon E.; Glover, Simon C.O.; Hughes, Annie; Kainulainen, Jouni; Klessen, Ralf S.; Schinnerer, Eva; Schruba, Andreas; Beuther, Henrik; Bigiel, Frank; Neville Blanc Mendiberri, Guillermo; Emsellem, Eric; Henning, Thomas; Herrera, Cynthia N.; Koch, Eric W.; Pety, Jerome; Ragan, Sarah E.; Sun, Jiayi (Nature, 2020)
      Statistical analysis of velocity fluctuations in the interstellar medium (ISM) of the Milky Way and NGC 4321 show that the motion of molecular gas over scales ranging from 0.1 to 1,000 pc is similar, and consistent with ...
    • Hamuy Wackenhut, Mario; Maza Sancho, José (The Astronomical journal, 97: 720-725, 1989, 1989-03)
      UVBRI photoelectric sequences for fifteen AGNs were obtained with 0.6, 0.9, and 1-m telescopes. The data include 473 observations for 118 stars, giving an average of 4.0 observations per star, and 7.9 stars per sequence. ...
    • Galbany, Lluis; Hamuy Wackenhut, Mario; Phillips, Mark M.; Suntzeff, Nicholas B.; Maza Sancho, José; De Jaeger, Thomas; Moraga, Tania; González Gaitán, Santiago; Krisciunas, Kevin; Morrell, Nidia; Thomas Osip, Joanna; Krzeminski, Wojtek; Gonzalez, Luis; Antezana, Roberto; Wishnjewski, Marina; McCarthy, Patrick; Anderson, Joseph; Gutierrez, Claudia; Stritzinger, Maximilian; Folatelli, Gastón; Anguita, Claudio; Galaz, Gaspar, 1967-; Green, Elisabeth; Impey, Chris; Kim, Yong-Cheol; Kirhakos, Sofia; Malkan, Mathew; Mulchaey, John; Phillips, Andrew; Pizzella, Alessandro; Prosser, Charles; Schmidt, Brian; Schommer, Robert; Sherry, William; Strolger, Louis; Wells, Lisa; Williger, Gerard (OP PUBLISHING, 2016)
      We present a compilation of UBVRIz light curves of 51 type II supernovae discovered during the course of four different surveys during 1986-2003: the Cerro Tololo Supernova Survey, the Calan/Tololo Supernova Program (C&T), ...
    • Söchting, Ilona K.; Coldwell, Georgina V.; Clowes, Roger G.; Campusano Brown, Luis; Graham, Matthew J. (Royal Astronomical Society, 2012-04-03)
      detected using a fully automated search in the Cosmic Evolution Survey field. The detection algorithm is based on density peak extraction from a density distribution sampled usingVoronoi tessellation within overlapping ...
    • Finger Camus, Ricardo; Mena, F. P.; Baryshev, A.; Khudchenko, A.; Rodriguez, R.; Huaracan, E.; Alvear, A.; Barkhof, J.; Hesper, R.; Bronfman Aguiló, Leonardo (EDP Sciences, 2015)
      Context. Deep spectral-line surveys in the mm and sub-mm range can detect thousands of lines per band uncovering the rich chemistry of molecular clouds, star forming regions and circumstellar envelopes, among others ...
    • Mancilla Almonacid, D.; Jaeschke Ubiergo, R.; Núñez, A.; Allende, S. (IOP Publishing, 2020)
      It is shown that the interplay between curvature and interfacial Dzyalonshinsky-Moriya interaction (DMI) is a pathway to ultrafast domain wall (DW) dynamics in ferromagnetic nanotubes. In this work, we theoretically study ...
    • Dellacherie Lefebvre, Claude; Martínez Aguilera, Servet; San Martín Aristegui, Jaime (2009)
      In this article we study which infinite matrices are potential matrices. We tackle this problem in the ultrametric framework by studying infinite tree matrices and ultrametric matrices. For each tree matrix, we show the ...
    • Quintero, Y.; Mosquera, E.; Diosa, J.; Garcia, A. (Springer, 2020)
      The influence of synthesis parameters using the ultrasonic-assisted sol-gel method on the properties of TiO2 nanostructures was studied. Different synthesis conditions such as long stirring time, type of acid used as the ...
    • Martorell, A.; Alfageme Roldán, F.; Vilarrasa Rull, E.; Ruiz-Villaverde, R.; Romaní De Gabriel, J.; García Martínez, F.; Vidal Sarro, D.; Velasco Pastor, M.; Ciudad Blanco, C.; Segura Palacios, J. M.; Rodríguez Bandera, A. I.; Pascual Ramírez, J. C.; Sancho Sánchez, (Blackwell Publishing Ltd, 2019)
      Background: It has been reported that clinical evaluation consistently underestimates the severity of hidradenitis suppurativa (HS). Objective: To determine the usefulness of ultrasound as a diagnostic tool in HS compared ...
    • Polo, Efraín; Ibarra-Arellano, N.; Prent-Peñaloza, Luis; Morales-Bayuelo, Alejandro; Henao, José; Galdámez, Antonio; Gutiérrez, Margarita (Academic Press Inc., 2019)
      The chalcone and bis-chalcone derivatives have been synthesized under sonication conditions via Claisen-Schmidt condensation with KOH in ethanol at room temperature (20–89%). The structures were established on the basis ...
    • Gutiérrez Moreno, A.; Moreno, H.; Costa Hechenleitner, Edgardo; Feibelman, W.A. (The American Astronomical Society, 1997-08-10)
      We present UV observations of the symbiotic stars Hen 1213, Hen 1341, and Hen 1761, made almost simultaneously with optical observations during 1995; previous optical observations were made during 1987 and 1991. The UV ...
    • Clowes, Roger G.; Haberzettl, Lutz; Raghunathan, Srinivasan; Williger, Gerard M.; Mitchell, Sophia M.; Sochting, Ilona K.; Graham, Matthew J.; Campusano Brown, Luis (Oxford Univ. Press, 2016)
      We investigate the strength of ultraviolet Fe ii emission in fainter quasars compared with brighter quasars for 1.0 a parts per thousand currency sign z a parts per thousand currency sign 1.8, using the Sloan Digital Sky ...
    • Sameshima, H.; Maza Sancho, José; Matsuoka, Y.; Oyabu, S.; Kawara, K.; Yoshii, Y.; Asami, N.; Ienaka, N.; Tsuzuki, Y. (WILEY-BLACKWELL PUBLISHING, 2009)
      We present spectra of six luminous quasars at z ∼ 2, covering rest wavelengths 1600−3200 Å. The fluxes of the UV Fe II emission lines and MgII λ2798 doublet, the line widths of Mg II and the 3000 Å luminosity were obtained ...
    • Zambra, Valeska; Clerc Gavilán, Marcel; Barboza, Raouf; Bortolozzo, Umberto; Residori, Stefania (Amer Physical Soc, 2020)
      Electrically driven nematic liquid crystals layers are ideal contexts for studying the interactions of local topological defects, umbilical defects. In homogeneous samples the number of defects is expected to decrease ...
    • Pérez Vera, Víctor (Universidad de Chile, 2012)
    • Röthlisberger, David; Denker, Marcus; Tanter, Éric Pierre (PERGAMON-ELSEVIER SCIENCE LTD, 2008-07)
      Dynamic, unanticipated adaptation of running systems is of interest in a variety of situations, ranging from functional upgrades to on-the-fly debugging or monitoring of critical applications. In this paper we study a ...