Now showing items 1945-1964 of 6984

    • Bustos, Carlos; Pérez Cerda, Marcia; Alvarez Thon, Luis; Barrales Salcedoa, Enrique; Garland, María Teresa (WILEY-BLACKWELL, 2012-02)
      There are two independent molecules, A and B, in the asymmetric unit of the title compound, C19H20N4, in each of which the N=N double bond has an E conformation. The dihedral angles between the pyrazole ring and the p-tolyl ...
    • Escobar, Carlos A.; Vega, Andrés; Sicker, Dieter; Ibañez, Andrés (WILEY-BLACKWELL PUBLISHING, 2008-09)
      The molecular conformation of the title compound, C18H18O5, is stabilized by a strong intramolecular hydrogen bond between the hydroxyl and carbonyl groups. The C = C double bond displays an E configuration while the ...
    • Suárez, Francisco; Lobos, Felipe; Fuente Stranger, Alberto de la; Vilà Guerau de Arellano, Jordi; Prieto Santa, Ana; Meruane Naranjo, Carolina; Hartogensis, Óscar (MDPI, 2020)
      In the endorheic basins of the Altiplano, water is crucial for sustaining unique ecological habitats. Here, the wetlands act as highly localized evaporative environments, and little is known about the processes that control ...
    • Suárez, Francisco; Lobos, Felipe; Fuente Stranger, Alberto de la; Vilà-Guerau de Arellano, Jordi; Prieto, Ana; Meruane Naranjo, Carolina; Hartogensis, Óscar (MDPI, 2020)
      In the endorheic basins of the Altiplano, water is crucial for sustaining unique ecological habitats. Here, the wetlands act as highly localized evaporative environments, and little is known about the processes that control ...
    • Figueroa Morales, Nuris; Rivera, Aramis; Soto Bertrán, Rodrigo; Lindner, Anke; Altshuler, Ernesto; Clement, Eric (Amer Assoc Advancement Science, 2020)
      One notable feature of bacterial motion is their ability to swim upstream along corners and crevices, by leveraging hydrodynamic interactions. This motion through anatomic ducts or medical devices might be at the origin ...
    • Gaete, Ximena; Vivanco, Maritza; Lopez, Patricia; Rocha, Ana; Sepúlveda, Carolina; Codner Dujovne, Ethel (Blackwell Publishing Ltd, 2019)
      © 2018 John Wiley & Sons A/S. Published by John Wiley & Sons LtdBackground: Recent studies have suggested that there is an earlier age of onset of puberty in healthy boys. However, no study has determined the age of pubertal ...
    • Moreno Moncada, Patricio; Simi, E.; Villa-Martínez, R. P.; Vilanova, I. (Elsevier Ltd, 2019)
      The history and dynamics of deciduous Nothofagus forests along the eastern slopes of the central Patagonian Andes (44°-49°S) remain insufficiently studied and understood, particularly at timescales ranging from centuries ...
    • Lili, Song; Sandset, Else Charlotte; Arima, Hisatomi; Heeley, Emma; Delcourt, Candice; Chen, Guofeng; Yang, Jie; Wu, Guojun; Wang, Xia; Lavados Germain, Pablo Manuel; Huang, Yining; Stapf, Christian; Wang, Jiguang; Robinson, Thompson; Chalmers, John; Lindley, Richard I.; Anderson, Craig S. (BMJ Publishing Group, 2016-12)
      Objective Antithrombotic agents increase risks of intracerebral haemorrhage (ICH) and associated adverse outcomes. We determined differential effects of early blood pressure (BP) lowering in patients with/without ...
    • Mundnich, Karel; Orchard Concha, Marcos (Elsevier, 2016-07)
      This work presents a novel online early detector of high-volatility clusters based on uGARCH models (a variation of the GARCH model), risk-sensitive particle-filtering-based estimators, and hypothesis testing procedures. ...
    • Hervé Allamand, Francisco; Fanning, C. Mark; Calderón, Mauricio; Mpodozis Marín, Constantino (Elsevier, 2014)
      One of the major geological units of the Main Andean Range (Frontal Cordillera) of north–central Chile is a group of composite and heterochronous late Paleozoic–early Mesozoic batholiths that extends for 500 km roughly ...
    • Barrado, D.; De Gregorio Monsalvo, Itziar; Huelamo, N.; Morales Calderón, M.; Bayo, A.; Palau, A.; Ruiz, M.; Riviere Marichalar, P.; Bouy, H.; Morata, O.; Stauffer, J. R.; Eiroa, C.; Noriega Crespo, A. (EDP Sciences S A, 2018)
      Aims. The early evolutionary stage of brown dwarfs (BDs) is not very well characterized, especially during the embedded phase. Our goal is to gain insight into the dominant formation mechanism of very low-mass objects and ...
    • Burgos, Héctor; Hernández, Alejandro; Constandil, Luis; Ríos, Miguel; Flores, Osvaldo; Puentes, Gustavo; Hernández, Karina; Morgan, Carlos; Valladares Boasi, Luis; Castillo, Amparo; Cofre, Christian; Milla, Luis A.; Sáez-Briones, Patricio; Barra, Rafael (Elsevier B.V., 2019)
      Moderate reduction of dietary protein (from 25% to 8% casein) in pregnant rats, calorically compensated by carbohydrates, gives rise to ‘hidden prenatal malnutrition’ (HPM) in the offspring since it does not alter body and ...
    • Gaspar, Pablo A.; Castillo, Rolando I.; Maturana, Alejandro; Villar, María J.; Ulloa, Karen; González, Gabriel; Ibaceta, Osvaldo; Ortiz, Andrea; Corral, Sebastián; Mayol, Rocío; De Angel, Valeria; Aburto, María B.; Martínez, Antígona; Corcoran, Cheryl M.; Silva, Hernán (Blackwell Publishing, 2019)
      © 2018 John Wiley & Sons Australia, LtdAim: Early detection and intervention (EDI) is a main challenge in psychosis research. The Chilean schizophrenia (SZ) national program has universal support and treatment by law for ...
    • Cybulski, Ryan; Yun, Min S.; Erickson, Neal; De la Luz, Victor; Narayanan, Gopal; Montaña, Alfredo; Sánchez, David; Zavala, Jorge A.; Zeballos, Milagros; Chung, Aeree; Fernández, Ximena; Gorkom, Jacqueline van; Haines, Chris; Jaffé, Yara L.; Montero Castaño, María; Poggianti, Bianca M.; Verheijen, Marc A. W.; Yoon, Hyein; Deshev, Boris Z.; Harrington, Kevin; Hughes, David H.; Morrison, Glenn E.; Schloerb, F. Peter; Velazquez, Miguel (Royal Astronomical Society, 2016-07)
      An understanding of the mass build-up in galaxies over time necessitates tracing the evolution of cold gas (molecular and atomic) in galaxies. To that end, we have conducted a pilot study called CO Observations with the ...
    • Rathborne, Jill; Jackson, J. M.; Chambers, E. T.; Stojimirovic, I.; Simon, R.; Shipman, R.; Frieswijk, W. (The American Astronomical Society, 2010-05-20)
      Identified as extinction features against the bright Galactic mid-infrared background, infrared dark clouds (IRDCs) are thought to harbor the very earliest stages of star and cluster formation. In order to better characterize ...
    • Taddia, F.; Sollerman, J.; Leloudas, G.; Stritzinger, M. D.; Valenti, S.; Galbany, Lluis; Kessler, R.; Schneider, D. P.; Wheeler, J. C. (ESO, 2015)
      Context. Type Ib/c supernovae (SNe Ib/c) have been investigated in several single-object studies; however, there is still a paucity of works concerning larger, homogeneous samples of these hydrogen-poor transients, in ...
    • Madariaga, Raúl; Ruiz Tapia, Sergio (Springer, 2016)
      We review the development of earthquake dynamics taken from the point of view of the origin of seismic radiation instead of the detailed study of rupture propagation on complex surfaces. Many features of seismic radiation ...
    • Melgar, Diego; Crowell, Brendan W.; Geng, Jianghui; Allen, Richard M.; Bock, Yehuda; Riquelme, Sebastián; Hill, Emma M.; Protti, Marino; Ganas, Athanassios (Amer Geophysical Union, 2015)
      GPS instruments are noninertial and directly measure displacements with respect to a global reference frame, while inertial sensors are affected by systematic offsets—primarily tilting—that adversely impact integration ...
    • Shrivastava, Mahesh N.; González, Gabriel; Moreno, Marcos; Soto, Hugo; Schurr, Bernd; Salazar, Pablo; Báez, Juan Carlos (Nature Publishing Group, 2019)
      We performed an integrated analysis of the coseismic slip, afterslip and aftershock activity of the 2014 M w 8.1 Pisagua earthquake. This earthquake seems to be spatially located between two major historical earthquakes, ...
    • Toledo, P.; Riquelme Muñoz, Sebastián; Campos Muñoz, Jaime (Copernicus Gesellschaft MBH, 2015)
      We study the main parameters of earthquakes from the perspective of the first digit phenomenon: the nonuniform probability of the lower first digit different from 0 compared to the higher ones. We found that source ...