Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 20040-20059 of 20545

    • Unpredictability in pedestrian flow: The impact of stochasticity and anxiety in the event of an emergency 
      Ramírez, M.; Torres, F.; Toledo, B. A.; Coello, M.; Correa-Burrows, P.; Rogan, J.; Valdivia, J. A. (Elsevier B.V., 2019)
      Random interactions among pedestrians, usually produced by psychological effects (e.g. anxiety), can produce collective nontrivial phenomena in their flow dynamics. Here, we improve our understanding on these phenomena by ...
    • Unraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme ... 
      Acciari, V. A.; Ansoldi, S.; Antonelli, L. A.; Engels, A. Arbet; Baack, D.; Babic, A.; Banerjee, B.; Barres de Almeida, U.; Barrio, J. A.; Becerra Gonzalez, J.; Bednarek, W.; Bellizzi, L. K.; Bernardini, E.; Berti, A.; Besenrieder, J.; Bhattacharyya, W.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bosnjak, Z.; Busetto, G.; Carosi, R.; Ceribella, G.; Cerruti, M.; Chai, Y.; Chilingarian, A.; Cikota, S.; Colak, S. M.; Colin, U.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; Del Puppo, F.; Delfino, M.; Delgado, J.; Depaoli, D.; Di Pierro, F.; Di Venere, L.; Do Souto Espineira, E.; Prester, D. Dominis; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Ramazani, V. Fallah; Ferrara, G.; Foffano, L.; Fonseca, M. V.; Font, L.; Fruck, C.; Fukami, S.; Garcia Lopez, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinovic, N.; Green, D.; Hadasch, D.; Hahn, A.; Hassan, T.; Herrera, J. J.; Hoang, J.; Hrupec, D.; Huetten, M.; Inada, T.; Inoue, S.; Ishio, K.; Iwamura, Y.; Jouvin, L.; Kajiwara, Y.; Kerszberg, D.; Kobayashi, Y.; Kubo, H.; Kushida, J.; Lamastra, A.; Lelas, D.; Leone, F.; Lindfors, E.; Lombardi, S.; Longo, F.; Lopez, M.; Lopez-Coto, R.; Lopez-Oramas, A.; Loporchio, S.; Machado de Oliveira Fraga, B.; Maggio, C.; Majumdar, P.; Makariev, M.; Mallamaci, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martinez, M.; Mazin, D.; Mender, S.; Micanovic, S.; Miceli, D.; Miener, T.; Minev, M.; Miranda, J. M.; Mirzoyan, R.; Molina, E.; Moralejo, A.; Morcuende, D.; Moreno, V.; Moretti, E.; Munar-Adrover, P.; Noda, K.; Nogues, L.; Nozaki, S.; Ohtani, Y.; Oka, T.; Otero-Santos, J.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Pavletic, L.; Penil, P.; Peresano, M.; Persic, M.; Moroni, P. G. Prada; Prandini, E.; Puljak, I.; Rhode, W.; Ribo, M.; Rico, J.; Righi, C.; Rugliancich, A.; Saha, L.; Sahakyan, N.; Saito, T.; Sakurai, S.; Satalecka, K.; Schleicher, B.; Schmidt, K.; Schweizer, T.; Sitarek, J.; Snidaric, I.; Sobczynska, D.; Spolon, A.; Stamerra, A.; Strom, D.; Strzys, M.; Suda, Y.; Suric, T.; Takahashi, M.; Tavecchio, F.; Temnikov, P.; Terzic, T.; Teshima, M.; Torres-Alba, N.; Tosti, L.; van Scherpenberg, J.; Vanzo, G.; Vazquez Acosta, M.; Ventura, S.; Verguilov, V.; Vigorito, C. F.; Vitale, V.; Vovk, I.; Will, M.; Zaric, D.; Petropoulou, M.; Finke, J.; D'Ammando, F.; Balokovi, M.; Madejskic, G.; Mori, K.; Puccetti, Simonetta; Leto, C.; Perri, M.; Verrecchia, F.; Villata, M.; Raiteri, C. M.; Agudo, I.; Bachev, R.; Berdyugin, A.; Blinov, D. A.; Chanishvili, R.; Chen, W. P.; Chigladze, R.; Damljanovic, G.; Eswaraiah, C.; Grishina, T. S.; Ibryamov, S.; Jordan, B.; Jorstad, S. G.; Joshi, M.; Kopatskaya, E. N.; Kurtanidze, O. M.; Kurtanidze, S. O.; Larionova, E. G.; Larionova, L. V.; Larionov, V. M.; Latev, G.; Lin, H. C.; Marscher, A. P.; Mokrushina, A. A.; Morozova, D. A.; Nikolashvili, M. G.; Semkov, E.; Smith, P. S.; Strigachev, A.; Moody, J. W.; Sadun, A. C.; Hovatta, T.; Richards, J. L.; Max-Moerbeck Astudillo, Walter; Readhead, A. C. S.; Lahteenmaki, A.; Tornikoski, M.; Tammi, J.; Ramakrishnan, V.; Reinthal, R. (IOP Publishing, 2020)
      We report on a multiband variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 19. The study uses, among others, data from GLAST-AGILE Support ...
    • Unraveling the Effects of Melt-Mantle Interactions on the Gold Fertility of Magmas 
      Tassara, Santiago; Reich Morales, Martín; Konecke, Brian A.; González Jiménez, José María; Simon, Adam C.; Morata Céspedes, Diego; Barra Pantoja, Fernando; Fiege, Adrián; Schilling, Manuel E.; Corgne, Alexandre (Frontiers Media, 2020)
      The oxidation state of the Earth's mantle and its partial melting products exert a key control on the behavior and distribution of sulfur and chalcophile and siderophile elements between the mantle and crust, underpinning ...
    • Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach 
      Barra Pantoja, Fernando; Reich Morales, Martín; Selby, David; Rojas, Paula; Simon, Adam C.; Salazar, Eduardo; Palma, Gisella (Elsevier, 2017)
      The Andean IOCG clan in the Coastal Cordillera of northern Chile, comprises the iron oxide-Cu-Au sensu stricto, the iron oxide-apatite (IOA), and the stratabound Cu(-Ag) deposits, also known as Manto-type Cu(-Ag) ...
    • Unraveling the Peruvian Phase of the Central Andes: stratigraphy, sedimentology and geochronology of the ... 
      Bascuñán, Sebastián; Arriagada Ortega, César; Le Roux, Jacobus; Deckart, Katja (Wiley-Blackwell, 2016)
      The Salar de Atacama Basin holds important information regarding the tectonic activity, sedimentary environments and their variations in northern Chile during Cretaceous times. About 4000m of high-resolution stratigraphic ...
    • Unresolved versus resolved: testing the validity of young simple stellar population models with VLT/MUSE ... 
      Kuncarayakti, H.; Galbany, Lluis; Anderson, J. P.; Krühler, T.; Hamuy Wackenhut, Mario (EDP Sciences, 2016)
      Context. Stellar populations are the building blocks of galaxies, including the Milky Way. The majority, if not all, extragalactic studies are entangled with the use of stellar population models given the unresolved nature ...
    • UNSTABLE OBJECTS IN MOLECULAR CLOUD LDN133 
      Gyulbudaghian, A. L.; Méndez Bussard, René Alejandro (Springer, 2013)
      The results of investigation of molecular cloud LDN133 and the unstable objects HHL59, HHL59A, HHL59B and HHL59C connected with it are given. The IR nebula and IR star cluster are also connected with LDN133. It is shown ...
    • Unsteady flow and mass transfer in models of stenotic arteries considering fluid-structure interaction 
      Valencia Musalem, Álvaro; Villanueva, Martín (PERGAMON-ELSEVIER SCIENCE LTD, 2009-10)
      In this work the unsteady non-Newtonian blood flow and mass transfer in symmetric and non-symmetric stenotic arteries are numerically simulated considering the fluid-structure interaction (FSI) using the code ADINA. Blood ...
    • Unsupervised blue whale call detection using multiple time-frequency features 
      Cuevas, Alejandro; Veragua, Alejandro; Español Jiménez, Sonia; Chiang, Gustavo; Tobar, Felipe (IEEE, 2017)
      In the context of bio-acoustic sciences, call detection is a critical task for understanding the behaviour of marine mammals such as the blue whale species (Balaeonoptera musculus) considered in this work. In this paper ...
    • Unsupervised intra-speaker variability compensation based on Gestalt and model adaptation in speaker ... 
      Becerra Yoma, Néstor; Garretón, Claudio; Molina, Carlos; Huenupán, Fernando (ELSEVIER, 2008-11)
      In this paper, an unsupervised intra-speaker variability compensation (ISVC) method based oil Gestalt is proposed to address the problem of limited enrolling data and noise robustness in text-dependent speaker verification ...
    • Unsupervised learning of structure in spectroscopic cubes 
      Araya, M.; Mendoza, M.; Solar, M.; Mardones, D.; Bayo, A. (Elsevier B.V., 2018)
      © 2018 Elsevier B.V. We consider the problem of analyzing the structure of spectroscopic cubes using unsupervised machine learning techniques. We propose representing the target's signal as a homogeneous set of volumes ...
    • Unsupervised method for correlated noise removal for multi-wavelength exoplanet transit observations 
      Dehghan Firoozabadi, Ali; Díaz, Alejandro; Rojo Rubke, Patricio; Soto, Ismael; Mahú Sinclair, Rodrigo; Becerra Yoma, Néstor; Sedaghati, Elyar (IOP Publishing, 2017-07-01)
      Exoplanetary atmospheric observations require an exquisite precision in the measurement of the relative flux among wavelengths. In this paper, we aim to provide a new adaptive method to treat light curves before fitting ...
    • Untangling features in the primordial spectra 
      Palma Quilodrán, Gonzalo (IOP, 2015)
      We discuss the possible existence of features in both the primordial power spectrum and bispectrum generated during a stage of single eld cosmic in ation. We argue that there are two main classes of features: those ...
    • Untitled 
      Bravo, Cristian; Davison, Matt; Jofré Cáceres, René; Maldonado, Sebastián; Weber, Richard (IOS Press, 2015)
    • An unusual eight-coordinated copper complex: bis(4,7-diphenyl-1,10-phenanthroline)dinitratocopper(II) 
      Moreno, Yanko; Hermosilla, Patricio; Garland, María Teresa; Peña, Octavio; Baggio, Ricardo (BLACKWELL, 2006-09)
      In the title monomer, [Cu(NO3)(2)(C24H16N2)(2)], the copper(II) cation is eight-coordinate within an octahedral-like polyhedron. The coordination polyhedron is formed by two chelating diphenylphenanthroline groups that de ...
    • Unusual Galactic HiiRegions at the Intersection of the Central Molecular Zone and the Far Dust Lane 
      Anderson, L. D.; Sormani, M. C.; Ginsburg, Adam; Glover, Simon C.O.; Heywood, I.; Rammala, I.; Schuller, F.; Csengeri, T.; Urquhart, J. S.; Bronfman Aguiló, Leonardo (IOP Publishing, 2020)
      Sgr.E is a massive star formation complex found toward the Galactic center that consists of numerous discrete, compact H II regions. It is located at the intersection between the central molecular zone (CMZ) and the far ...
    • An unusual two-dimensional hydrogen-bonding network in bis(2,9-dimethyl-1,10-phenanthrolin-1-ium) peroxodisulfate ... 
      Harvey, Miguel Angel; Baggio, Sergio; Garland, María Teresa; Baggio, Ricardo (BLACKWELL PUBLISHING, 2008-09)
      The title compound, 2C(14)H(13)N(2)(+)center dot S2O82-center dot 2H(2)O, is a protonated amine salt which is formed from two rather uncommon ionic species, namely a peroxodisulfate (pds(2-)) anion, which lies across a ...
    • Unveiling the beta pictoris system, coupling high contrast imaging, interferometric, and radial velocity data 
      Lagrange, A. M; Rubini, P.; Nowak, M.; Lacour, S.; Grandjean, A.; Boccaletti, A.; Langlois, M.; Delorme, P.; Gratton, R.; Wang, J.; Flasseur, O.; Galicher, R.; Kral, Q.; Meunier, N.; Beust, H.; Babusiaux, C.; Le Coroller, H.; Thebault, P.; Kervella, P.; Zurlo, A.; Maire, A.-L.; Wahhaj, Z.; Amorim, A.; Asensio-Torres, Rubén; Benisty, M.; Berger, J.-P.; Bonnefoy, M.; Brandner, W.; Cantalloube, F.; Charnay, B.; Chauvin, G.; Choquet, É.; Clenet, Y.; Christiaens, V.; Coude du Foresto, V.; de Zeeuw, P.T.; Desidera, S.; Duvert, G.; Eckart, A.; Eisenhauer, F.; Galland, F.; Gao, F.; Garcia, P.; García López, R.; Gendron, E.; Genzel, R.; Gillessen, S.; Girard, J.; Hagelberg, J.; Haubois, X.; Henning, T.; Heissel, G.; Hippler, S.; Horrobin, M.; Janson, M.; Kammerer, J.; Kenworthy, M.; Keppler, M.; Kreidberg, L.; Lapeyrere, V.; Le Bouquin, J.-B.; Lena, P.; Merand, A.; Messina, S.; Molliere, P.; Monnier, J. D.; Ott, T.; Otten, G.; Paumard, T.; Paladini, C.; Perraut, K.; Perrin, G.; Pueyo, L.; Pfuhl, O.; Rodet, L.; Rodríguez Coira, G.; Rousset, G.; Samland, M.; Shangguan, J.; Schmidt, T.; Straub, O.; Straubmeier, C.; Stolker, T.; Vigan, A.; Vincent, F.; Widmann, F.; Woillez, J. (EDP Science, 2020)
      Context. The nearby and young beta Pictoris system hosts a well resolved disk, a directly imaged massive giant planet orbiting at similar or equal to 9 au, as well as an inner planet orbiting at similar or equal to 2.7 au, ...
    • Unveiling the gas-and-dust disk structure in HD 163296 using ALMA observations 
      De Gregorio Monsalvo, Itziar; Ménard, Francois; Dent, W.; Pinte, Christophe; López Saavedra, Celso; Klaassen, C.; Hales, A.; Cortés, P.; Rawlings, M. G.; Tachihara, K.; Testi, L.; Takahashi, S.; Chapillon, E.; Mathews, G.; Juhasz, A.; Akiyama, E.; Higuchi, Aya; Saito, M.; Nyman, L. A.; Phillips, N.; Rodón, J.; Corder, S.; Van Kempen, T. (EDP Sciences, 2013)
      Aims. The aim of this work is to study the structure of the protoplanetary disk surrounding the Herbig Ae star HD 163296. Methods. We used high-resolution and high-sensitivity ALMA observations of the CO(3–2) emission ...
    • Unveiling the role of galactic rotation on star formation 
      Utreras Contreras, José; Becerra, Fernando; Escala Astorquiza, Andrés (The American Astronomical Society, 2016-11-10)
      We study the star formation process at galactic scales and the role of rotation through numerical simulations of spiral and starburst galaxies using the adaptive mesh refinement code Enzo. We focus on the study of three ...