Browsing by Title Artículos de revistas

Now showing items 7168-7187 of 7549

    • Twenty Years of Information Systems Frontiers 
      Beydoun, Ghassan; Abedin, Babak; Merigó Lindahl, José; Vera, Melanie (Springer New York LLC, 2019)
      Information Systems Frontiers is a leading international journal that publishes research at the interface between information systems and information technology. The journal was launched in 1999. In 2019, the journal ...
    • Twisted skyrmions through dipolar interactions 
      Castillo Sepúlveda, S.; Corona, R. M.; Núñez, A. S.; Altbir, D. (Elsevier, 2019)
      The manifestations of the dipolar interaction in magnetic nano-devices can take subtle forms. In this work, we address the effects of dipolar interactions on skyrmions textures. The so-called twisted skyrmion is a natural ...
    • Twitter for marijuana infodemiology 
      Cortés, Víctor D.; Velásquez, Juan D.; Ibáñez, Carlos F. (Association for Computing Machinery, 2017)
      Today online social networks seem to be good tools to quicklymonitor what is going on with the population, since they provideenvironments where users can freely share large amounts of infor-mation related to their own ...
    • Two Cd and Hg peroxodisulfate complexes with aromatic amines 
      Díaz de Vivar, Enriqueta; Harvey, Miguel Angel; Garland, María Teresa; Baggio, Sergio; Baggio, Ricardo (BLACKWELL MUNKSGAARD, 2005-05)
      The crystal structures of two complexes containing the peroxodisulfate anion are reported, namely mu-peroxodisulfato-1 kappa O:2 kappa O'-bis[(acetato-kappa O-2,O')aqua(2,2':6',2 ''-terpyridine-kappa N-3,N',N '')cadmium(II)] ...
    • Two close large quasar groups of size ~ 350 Mpc at z ~ 1.2 
      Clowes, Roger G.; Campusano, Luis E.; Graham, Matthew J.; Söchting, Ilona K. (2012)
      The Clowes & Campusano large quasar group (LQG) at ¯z = 1.28 has been re-examined using the quasar data from the DR7QSO catalogue of the Sloan Digital Sky Survey. In the 1991 discovery, the LQG impinged on the northern, ...
    • Two decades of ozone standard exceedances in Santiago de Chile 
      Seguel Albornoz, Rodrigo; Gallardo Klenner, Laura; Fleming, Zoë L.; Landeros, Sofía (Springer, 2020)
      A drastic decline of 2.4 ppbv decade(-1) in the ozone mixing ratio has been measured in Santiago de Chile during the 2000s. Subsequently, in the 2010s, ozone trends stabilized in downtown and showed upward trends in eastern ...
    • Two groups of red giants with distinct chemical abundances in the bulge globular cluster NGC 6553 through ... 
      Tang, Baitian; Cohen, Roger E.; Geisler, Doug; Schiavon, Ricardo P.; Majewski, Steven R.; Villanova, Sandro; Carrera, Ricardo; Zamora, Olga; García Hernández, D. A.; Shetrone, Matthew; Frinchaboy, Peter; Meza, Andrés; Fernández Trincado, J. G.; Muñoz Vidal, Ricardo Rodrigo; Lin, Chien-Cheng; Lane, Richard R.; Nitschelm, Christian; Pan, Kaike; Bizyaev, Dmitry; Oravetz, Daniel; Simmons, Audrey (Oxford University, 2017)
      Multiple populations revealed in globular clusters (GCs) are important windows to the forma-tion and evolution of these stellar systems. The metal-rich GCs in the Galactic bulge are anindispensable part of this picture, ...
    • Two massive star-forming regions at early evolutionary stages 
      Garay Brignardello, Guido; Brooks, Kate J.; Mardones Pérez, Diego; Norris, Ray P.; Burton, Michael G. (2002-11-10)
      We report sensitive Australia Telescope Compact Array radio continuum observations toward IRAS 15596 5301 and 16272 4837, two luminous objects (L > 2 104 L ) thought to represent massive starforming regions in early ...
    • Two new ultracool benchmark systems from WISE+2MASS 
      Gomes, J. I.; Pinfield, D. J.; Marocco, F.; Day Jones, A. C.; Burningham, B.; Zhang, Z. H.; Jones, H. R. A.; Spaandonk, L. van; Weights, D. (Oxford University Press, 2013)
      We have used the Two-Micron All-Sky Survey and the Wide-field Infrared Survey Explorer to look for ultracool dwarfs that are part of multiple systems containing main-sequence stars.We cross-matched L dwarf candidates ...
    • Two one-dimensional zinc(II) coordination polymers: catena-poly[[bis(pentane-2,4-dionato-kappa O-2,O ... 
      Granifo, Juan; Garland, María Teresa; Baggio, Ricardo (BLACKWELL, 2006-02)
      The structures of the two title isomeric compounds, [Zn(C5H7O2)(2)(C12H10N4)](n), are built up around two non-equivalent symmetry centres, one of them at the cation position and the other bisecting the N-N bond in the ...
    • Two year Cosmology Large Angular Scale Surveyor (CLASS) observations: long timescale stability achieved ... 
      Harrington, Kathleen; Datta, Rahul; Osumi, Keisuke; Ali, Aamir; Appel, John W.; Bennett, Charles L.; Brewer, Michael K.; Bustos, Ricardo; Chan, Manwei; Chuss, David T.; Cleary, Joseph; Couto, Jullianna Denes; Dahal, Sumit; Dunner, Rolando; Eimer, Joseph R.; Essinger Hileman, Thomas; Hubmayr, Johannes; Espinoza Inostroza, Francisco Raúl; Iuliano, Jeffrey; Karakla, John; Li, Yunyang; Marriage, Tobías A.; Miller, Nathan J.; Núñez, Carolina; Padilla, Ivan L.; Parker, Lucas; Petroff, Matthew A.; Pradenas Márquez, Bastián Felipe; Reeves, Rodrigo; Fluxa Rojas, Pedro; Rostem, Karwan; Valle, Deniz Augusto Nunes; Watts, Duncan J.; Weiland, Janet L.; Wollack, Edward J.; Xu, Zhilei (IOP, 2021)
      The Cosmology Large Angular Scale Surveyor (CLASS) is a four-telescope array observing the largest angular scales (2 ℓ  200) of the cosmic microwave background (CMB) polarization. These scales encode information ...
    • Two Zn(II) and one Mn(II) complexes using two different hydrazone ligands: spectroscopic studies and ... 
      Ray, Aurkie; Banerjee, Sambuddha; Sen, Soma; Butcher, Ray J.; Rosair, Georgina M.; Garland, María Teresa; Mitra, Samiran (SPRINGER/PLENUM PUBLISHERS, 2008-04)
      Three new coordination complexes of Zn(II) and Mn(II) have been synthesised using two different tridentate N,N,O donor hydrazone ligands, Hpbh and Hacpbh respectively. The complexes [Zn(pbh)2] (1) and [Zn (acpbh)2] (2) ...
    • Two-dimensional block trees 
      Brisaboa, Nieves; Gagie, Travis; Gomez-Brandon, Adrian; Navarro, Gonzalo (Institute of Electrical and Electronics Engineers Inc., 2018)
      The Block Tree (BT) is a novel compact data structure designed to compress sequence collections. It obtains compression ratios close to Lempel-Ziv and supports efficient direct access to any substring. The BT divides the ...
    • Two-Dimensional Distributed Inverted Files 
      Feuerstein, Esteban; Marín, Mauricio; Mizrahi, Michel; Gil Costa, Verónica; Baeza Yates, Ricardo (2009)
      Term-partitioned indexes are generally inefficient for the evaluation of conjunctive queries, as they require the communication of long posting lists. On the other side, document-partitioned indexes incur in excessive ...
    • Two-dimensional dynamic model of a copper sulphide ore bed 
      Sidborn, M.; Casas de Prada, Jesús; Martínez, J.; Moreno, L. (ELSEVIER, 2003-10)
      A two-dimensional dynamic model for bioleaching of secondary copper minerals from a pile has been developed. In the model. aeration of the pile is considered to be due to natural convection caused by the density gradient ...
    • The two-dimensional Lazer-McKenna conjecture for an exponential nonlinearity 
      Pino Manresa, Manuel del; Muñoz, Claudio (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006-12-01)
      We consider the problem of Ambrosetti-Prodi type [GRAPHICS] where Q is a bounded, smooth domain in R-2, phi(1) is a positive first eigenfunction of the Laplacian under Dirichlet boundary conditions and h is an element ...
    • Two-dimensional local null controllability of a rigid structure in a Navier-Stokes fluid 
      Boulakia, Muriel; Osses Alvarado, Axel (2006-07-15)
      We consider the two-dimensional motion of a rigid structure immersed in an incompressible fluid governed by Navier-Stokes equations. The control force acts on a fixed subset of the fluid domain. We prove that our system ...
    • Two-dimensional nanomaterials for the removal of pharmaceuticals from wastewater: a critical review 
      González Poggini, Sergio de Jesús; Rosenkranz, Andreas; Colet Lagrille, Madeleine Natalie (MDPI, 2021)
      The removal of pharmaceuticals from wastewater is critical due to their considerable risk on ecosystems and human health. Additionally, they are resistant to conventional chemical and biological remediation methods. ...
    • Two-dimensional optical chimera states in an array of coupled waveguide resonators 
      Clerc Gavilán, Marcel; Coulibaly, S.; Ferré, M. A.; Tlidi, M. (American Institute of Physics, 2020)
      Two-dimensional arrays of coupled waveguides or coupled microcavities allow us to confine and manipulate light. Based on a paradigmatic envelope equation, we show that these devices, subject to a coherent optical injection, ...
    • Two-level genetic algorithm for evolving convolutional neural networks for pattern recognition 
      Montecino, Daniel A.; Pérez, Claudio A.; Bowyer, Kevin W. (IEEE-Inst Electrical Electronics Engineers, 2021)
      The aim of Neuroevolution is to nd neural networks and convolutional neural network (CNN) architectures automatically through evolutionary algorithms. A crucial problem in neuroevolution is search time, since multiple ...