Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 10166-10185 of 20545

    • Género, participación política y adultocentrismo en las biografías de adolescentes líderes del movimiento ... 
      Abah-Sahada Lues, Waleska Alexandra (Universidad de Chile, 2022)
      El presente estudio analiza la participación política de las dirigentas secundarias en Chile, particularmente de aquellas pertenecientes a la Asamblea Coordinadora de Estudiantes Secundarios (ACES) y la Red de Estudiantes ...
    • Génesis de travertinos en Baños Colina y Baños Morales, Cajón del Maipo, Región Metropolitana 
      Anselmo Miranda, Aldo Nicolás (Universidad de Chile, 2017)
      La presente investigación tiene por objetivo establecer un modelo genético para los travertinos que se encuentran en Baños Morales y en el Valle de Colina en el Cajón del Maipo, Chile. Para esto se caracterizó la morfología, ...
    • Génesis del Plutonismo Cenozoico en la Patagonia Extra-Andina al Sur del Punto Triple 
      Sánchez Valenzuela, Alejandro Antonio (Universidad de ChileCyberDocs, 2011)
    • Giant Kiruna-type deposits form by efficient flotation of magmatic magnetite suspensions 
      Knipping, Jaayke L.; Bilenker, Laura D.; Simon, Adam C.; Reich Morales, Martín; Barra Pantoja, Fernando; Deditius, Artur P.; Lundstrom, Craig; Bindeman, Ilya; Munizaga, Rodrigo (Geological Soc Amer, 2015)
      Kiruna-type iron oxide-apatite (IOA) deposits are an important source of Fe ore, and two radically different processes are being actively investigated for their origin. One hypothesis invokes direct crystallization of ...
    • Giant molecular clouds and massive star formation in the Southern Milky Way 
      García, P.; Bronfman Aguiló, Leonardo; Nyman, Lars-Åke; Dame, T. M.; Luna, A. (The American Astronomical Society., 2014-05)
      The Columbia University–Universidad de Chile CO Survey of the southern Milky Way is used to separate the CO(1–0) emission of the fourth Galactic quadrant within the solar circle into its dominant components, giant molecular ...
    • Giant Molecular Clouds in the Southern Milky Way 
      García Fuentes, Pablo Fernando (Universidad de ChilePrograma Cybertesis, 2007)
    • Giant planets around two intermediate-mass evolved stars and confirmation of the planetary nature of HIP 67851c 
      Jones, M. I.; Jenkins, James Stewart; Rojo Rubke, Patricio; Melo, C. H. F. (EDP Sciences, 2015)
      Context. Precision radial velocities are required to discover and characterize exoplanets. Optical spectra that exhibit many hundreds of absorption lines can allow the m s(-1) precision levels required for this work. After ...
    • GIMMS NDVI time series reveal the extent, duration, and intensity of “blooming desert” events in the ... 
      Chávez, R. O.; Moreira-Muñoz, A.; Galleguillos, M.; Olea, M.; Aguayo, J.; Latín, A.; Aguilera-Betti, I.; Muñoz, A. A.; Manríquez, H. (Elsevier B.V., 2019)
      The “blooming desert”, or the explosive development and flowering of ephemeral herbaceous and some woody desert species during years with abnormally high accumulated rainfall, is a spectacular biological phenomenon of the ...
    • GJ 273: on the formation, dynamical evolution, and habitability of a planetary system hosted by an M dwarf ... 
      Pozuelos, Francisco J.; Suárez, Juan C.; Elía, Gonzalo C.de; Berdiñas, Zaira M; Bonfanti, Andrea; Dugaro, Agustín; Gillón, Michaël; Jehin, Emmanuël; Günther, Maximilian N.; Van Grootel, Valérie; García, Lionel J.; Thuillier, Antoine; Delrez, Laetitia; Rodón, José R. (EDP Science, 2020)
      Context. Planets orbiting low-mass stars such as M dwarfs are now considered a cornerstone in the search for planets with the potential to harbour life. GJ 273 is a planetary system orbiting an M dwarf only 3.75 pc away, ...
    • GJ 832c: a super-earth in the habitable zone 
      Wittenmyer, Robert A.; Tuomi, Mikko; Butler, R. P.; Jones, H. R.; Anglada Escudé, Guillem; Horner, Jonathan; Tinney, C. G.; Marshall, J. P.; Carter, B. D.; Bailey, J.; Salter, G. S.; O’Toole, S. J.; Wright, D.; Crane, J. D.; Schectman, S. A.; Arriagada, P.; Thompson, I.; Minniti, D.; Jenkins, James Stewart; Diaz, M. (The American Astronomical Society., 2014)
      We report the detection of GJ 832c, a super-Earth orbiting near the inner edge of the habitable zone of GJ 832, an Mdwarf previously known to host a Jupiter analog in a nearly circular 9.4 yr orbit. The combination of ...
    • GLACE survey: OSIRIS/GTC tuneable filter H alpha imaging of the rich galaxy cluster ZwCl 0024.0+1652 at z=0.395 
      Sánchez Portal, M.; Pintos Castro, I.; Pérez Martínez, R.; Cepa, J.; Pérez García, A. M.; Domínguez Sánchez, H.; Bongiovanni, A.; Serra, A. L.; Alfaro, E.; Altieri, B.; Aragón Salamanca, A.; Balkowski, C.; Biviano, A.; Bremer, M.; Castander, F.; Castañeda, H.; Castro Rodríguez, N.; Chies Santos, A. L.; Coia, D.; Diaferio, A.; Duc, P. A.; Ederoclite, A.; Geach, J.; González Serrano, I.; Haines, Chris; McBreen, B.; Metcalfe, L.; Oteo, I.; Pérez Fournón, I.; Poggianti, B.; Polednikova, J.; Ramón Pérez, M.; Rodríguez Espinosa, J. M.; Santos, J. S.; Smail, I.; Smith, G. P.; Temporin, S.; Valtchanov, I. (ESA, 2015)
      The cores of clusters at 0 less than or similar to z less than or similar to 1 are dominated by quiescent early-type galaxies, whereas the field is dominated by star-forming late-type galaxies. Clusters grow through the ...
    • Glacial geomorphology and paleoglacial behavior estimation in Sierra Baguales (50° S): Paleoclimatic factors ... 
      Araos Espinoza, José Miguel (Universidadn de Chile, 2016)
      The Sierra Baguales Mountain Range (SBMR) forms the eastern foothills of the Patagonian Andes located between 50º and 51º S, topographically isolated from the Southern Patagonian Icefield (SPIF) and under the influence of ...
    • Glaciation as a destructive and constructive control on mountain building 
      Thomson, Stuart N.; Brandon, Mark T.; Tomkin, Jonathan H.; Reiners, Peter W.; Vásquez, Cristián; Wilson, Nathaniel J. (NATURE PUBLISHING GROUP, 2010-09-16)
      Theoretical analysis predicts that enhanced erosion related to late Cenozoic global cooling can act as a first-order influence on the internal dynamics of mountain building, leading to a reduction in orogen width and ...
    • Glacier albedo reduction and drought effects in the extratropical Andes, 1986–2020 
      Shaw, Thomas E.; Ulloa Palominos, Génesis del Pilar; Farías Barahona, David; Fernández Vásquez, Rodrigo Alejandro; Lattus, José M.; McPhee Torres, James (Cambridge University Press, England, 2021)
      Surface albedo typically dominates the mass balance of mountain glaciers, though long-term trends and patterns of glacier albedo are seldom explored. We calculated broadband shortwave albedo for glaciers in the central ...
    • Glacier decline in the Central Andes (33°S): Context and magnitude from satellite and historical data 
      Ruiz Pereira, Sebastian Felipe; Veettil, Bijeesh Kozhikkodan (Elsevier Ltd, 2019)
      Central Andes (33°S) represent a water-scarce region. During arid years, glacier runoff may constitute the main hydrological input at warm season and hence a steadfast deglacierization may represent a decrease in the ...
    • Glacier inventory and recent glacier variations in the Andes of Chile, South America 
      Barcaza, Gonzalo; Nussbaumer, Samuel; Tapia, Guillermo; Valdés, Javier; García, Juan Luis; Videla, Yohan; Albornoz, Amapola; Arias, Víctor (Cambridge University Press, 2017)
      The first satellite-derived inventory of glaciers and rock glaciers in Chile, created from Landsat TM/ETM+ images spanning between 2000 and 2003 using a semi-automated procedure, is presented in a single standardized ...
    • Glacier runoff variations since 1955 in the Maipo River basin, in the semiarid Andes of central Chile 
      Silva Ayala, Álvaro Felipe; Farías Barahona, David; Huss, Matthias; Pellicciotti, Francesca; Mc Phee Torres, James; Farinotti, Daniel (Copernicus, 2020)
      As glaciers adjust their size in response to climate variations, long-term changes in meltwater production can be expected, affecting the local availability of water resources. We investigate glacier runoff in the period ...
    • A glance at the host galaxy of high-redshift quasars using strong damped Lyman-α systems as coronagraphs 
      Finley, Hayley; Petitjean, Patrick; Pâris, Isabelle; Noterdaeme, Pasquier; Brinkmann, Jonathan; Myers, Adam D.; Ross, Nicholas P.; Schneider, Donald P.; Bizyaev, Dmitry; Brewington, Howard; Ebelke, Garrett; Malanushenko, Elena; Malanushenko, Viktor; Oravetz, Daniel; Pan, Kaike; Simmons, Audrey; Snedden, Stephanie (EDP Sciences, 2013)
      We searched quasar spectra from the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS) for the rare occurrences where a strong damped Lyman-α absorber (DLA) blocks the Broad Line Region emission from the quasar and ...
    • A global algorithm for nonlinear semidefinite programming 
      Correa, Rafael; Ramírez Cabrera, Héctor (SIAM PUBLICATIONS, 2004)
      In this paper we propose a global algorithm for solving nonlinear semidefinite programming problems. This algorithm, inspired by the classic SQP (sequentially quadratic programming) method, modifies the S-SDP (sequentially ...
    • Global and concrete quantizations on general type I groups 
      Măntoiu,; Sandoval, (Springer-Verlag Wien, 2019)
      In recent papers and books, a global quantization has been developed for unimodular groups of type I. It involves operator-valued symbols defined on the product between the group G and its unitary dual G^ , composed of ...