Browsing by Title Artículos de revistas

Now showing items 4859-4878 of 7545

    • Outer-disk reddening and gas-phase metallicities: The CALIFA connection 
      Marino, R.; Gil de Paz, A.; Sánchez, S.; Sánchez Blázquez, P.; Cardiel, N.; Castillo Morales, A.; Pascual, S.; Vilchez, J.; Kehrig, C.; Molla, M.; Méndez Abreu, J.; Catalán Torrecilla, C.; Florido, E.; Pérez, I.; Ruiz Lara, T.; Ellis, S.; López Sánchez, Ángel R.; González Delgado, R. M.; Lorenzo Cáceres, A. de; García Benito, R.; Galbany, Lluis; Zibett, S.; Cortijo, C.; Kalinova, V.; Mast, D.; Iglesias Paramo, J.; Papaderos, P.; Walcher, C.; Bland Hawthorn, J. (EDP SCIENCES, 2016)
      We study, for the first time in a statistically significant and well-defined sample, the relation between the outer-disk ionized-gas metallicity gradients and the presence of breaks in the surface brightness profiles of ...
    • The outermost ejecta of Type Ia supernovae 
      Tanaka, Masaomi; Mazzali, Paolo; Benetti, Stefano; Nomoto, Ken’ichi; Elias-Rosa, Nancy; Kotak, Rubina; Pignata Libralato, Giuliano; Stanishev, Vallery; Hachinger, Stephan (UNIV CHICAGO PRESS, 2008-04-10)
      The properties of the highest velocity ejecta of normal Type Ia supernovae (SNe Ia) are studied via models of very early optical spectra of six SNe. At epochs earlier than 1 week before maximum, SNe with a rapidly evolving ...
    • Outflow-confined H II regions. I. First signposts of massive star formation 
      Tanaka, Kei; Tan, Jonathan; Zhang, Yichen (IOP PUBLISHING, 2016)
      We present an evolutionary sequence of models of the photoionized disk-wind outflow around forming massive stars based on the Core Accretion model. The outflow is expected to be the first structure to be ionized by the ...
    • Outflows, cores, and magnetic field orientations in W43-MM1 as seen by ALMA 
      Arce Tord, C.; Louvet, F.; Cortés, P. C.; Motte, F.; Hull, C. L. H.; Le Gouellec, V. J. M.; Garay, G.; Nony, T.; Didelon, P.; Bronfman Aguiló, Leonardo (EDP Sciences, 2020)
      Aims. It has been proposed that the magnetic field, which is pervasive in the interstellar medium, plays an important role in the process of massive star formation. To better understand the impact of the magnetic field at ...
    • Outlining of high quality coking coal by concentration–volume fractal model and turning bands simulation ... 
      Afzal, Peyman; Alhoseini, Seyed Hosein; Tokhmechi, Behzad; Ahangaran, Dariush Kaveh; Yasrebi, Amir Bijan; Madani, Nasser; Wetherelt, Andrew (Elsevier, 2014)
      This study aims at identifying the proper parts of C1 and B2 coking coal seams in the North block of East-Parvadeh coal deposit (Central Iran) using the concentration–volume (C–V) fractal modeling according to sulfur and ...
    • Outside-in disk evolution in the large magellanic cloud 
      Gallart, Carme; Stetson, Peter B.; Meschin, Ingrid P.; Pont, Frederic; Hardy, Eduardo (UNIV CHICAGO PRESS, 2008-08-01)
      From the analysis of the color-magnitude diagrams and color functions of four wide LMC fields located from similar or equal to 2 to 6 kpc from the kinematic center of the LMC we present evidence that, while the oldest ...
    • Ovarian Function in Adolescents Conceived Using Assisted Reproductive Technologies 
      Merino, Paulina M.; Lopez, Patricia; Salinas, Abril; Pastene, Carolina; Ferrada Muñoz, Alex Eduardo; Cassorla Goluboff, Fernando; Codner Dujovne, Ethel (Elsevier USA, 2019)
      © 2018 North American Society for Pediatric and Adolescent Gynecology Study Objective: To compare ovarian function between adolescents conceived using assisted reproductive technology (AcART) and adolescents who were ...
    • Over-accumulation of astaxanthin in Haematococcus pluvialis through chloroplast genetic engineering 
      Galarza, Janeth I.; Gimpel, Javier A.; Rojas, Verónica; Arredondo Vega, Bertha O.; Henríquez, Vitalia (Elsevier, 2018)
      The carotenoid biosynthesis pathway of Haematococcus pluvialis has been genetically modified to overproduce astaxanthin, a red pigment of high commercial value. The endogenous phytoene desaturase coding sequence (pds) has ...
    • Over-exposed classes in Java:An empirical study 
      Vidal, S.; Bergel, Alexandre; Díaz Pace, J. A.; Marcos, C. (Elsevier, 2016)
      Java access modifiers regulate interactions among software components. In particular, class modifiers specify which classes from a component are publicly exposed and therefore belong to the component public interface. ...
    • Overcoming Intrinsic Losses With a Physical-Transport Cross-Layer Control System for Low-SNR Links 
      Estévez Montero, Claudio; Azurdia Meza, César; Céspedes Umaña, Sandra (IEEE, 2015)
      Communication over low-SNR environments faces various challenges and data detection designing can be arduous. An aggregative sampling technique with TCP feedback is proposed to transmit in low-SNR channels. The proposed ...
    • Overidentification tests for the exogeneity of instruments in discrete choice models 
      Guevara, Angelo (Elsevier Ltd, 2018)
      Endogeneity is often present in discrete choice models, precluding the consistent estimation of the model parameters. To correct for this problem, the researcher needs to gather exogenous instrumental variables, which ...
    • Overlapping community detection in static and dynamic networks 
      Márquez R. (Association for Computing Machinery, Incacmhelp@acm.org, 2020)
    • Overview of the SDSS-IV MaNGA survey: mapping nearby galaxies at apache point observatory 
      Bundy, Kevin; Bershady, Matthew; Law, David R.; Yan, Renbin; Drory, Niv; MacDonald, Nicholas; Wake, David A.; Cherinka, Brian; Sánchez Gallego, José R.; Weijmans, Anne Marie; Thomas, Daniel; Tremonti, Christy; Masters, Karen; Coccato, Lodovico; Diamond-Stanic, Aleksandar; Aragón-Salamanca, Alfonso; Avila-Reese, Vladimir; Badenes, Carles; Falcón Barroso, J.; Belfiore, Francesco; Bizyaev, Dmitry; Blanc Mendiberri, Guillermo; Bland-Hawthorn, Joss; Blanton, Michael R.; Brownstein, Joel; Byler, Nell; Cappellari, Michele; Conroy, Charlie; Dutton, Aaron; Emsellem, Eric; Etherington, James; Frinchaboy, Peter; Fu, Hai; Gunn, James; Harding, Paul; Johnston, Evelyn; Kauffmann, Guinevere; Kinemuchi, Karen; Klaene, Mark; Knapen, Johan; Leauthaud, Alexie; Li, Cheng; Lin, Lihwai; Maiolino, Roberto; Malanushenko, Viktor; Malanushenko, Elena; Mao, Shude; Maraston, Claudia; McDermid, Richard; Merrifield, Michael; Nichol, Robert; Oravetz, Daniel; Pan, Kaike; Parejko, John; Sanchez, Sebastian; Schlegel, David; Simmons, Audrey; Steele, Oliver; Steinmetz, Matthias; Thanjavur, Karun; Thompson, Benjamin; Tinker, Jeremy; van den Bosch, Remco; Westfall, Kyle; Wilkinson, David; Wright, Shelley; Xiao, Ting; Zhang, Kai (The American Astronomical Society, 2015-01-01)
      We present an overview of a new integral field spectroscopic survey called MaNGA (Mapping Nearby Galaxies at Apache Point Observatory), one of three core programs in the fourth-generation Sloan Digital Sky Survey (SDSS-IV) ...
    • OWA operators in the calculation of the average green-house gases emissions 
      Amirbagheri, Keivan; Merigó Lindahl, José; Guitart Tarres, Laura; Núñez Carballosa, Ana (IOS, 2020)
      This study proposes, through weighted averages and ordered weighted averaging operators, a new aggregation system for the investigation of average gases emissions. We present the ordered weighted averaging operators gases ...
    • Owa-based aggregation operations in multi-expert MCDM model 
      Yusoff, Binyamin; Merigó Lindahl, José; Ceballos, David (Academy of Economic Studies, 2017)
      This paper presents an analysis of multi-expert multi-criteria decision making (ME-MCDM) model based on the ordered weighted averaging (OWA) operators. Two methods of modeling the majority opinion are studied as to aggregate ...
    • Oxide copper nanoparticles stabilized by acrylonitrile and methyl methacrylate polar monomers through a ... 
      Rodríguez, Bárbara; Ramírez, Sara; Gutiérrez, Pablo; Silva, Nataly; Díaz Aburto, Isaac; García González, Andreina Evelin; Martínez, Iván (IOP, 2021)
      This research reports the synthesis of copper oxide nanoparticles (CuONP) functionalized by the polar monomers acrylonitrile (ACN) and methyl methacrylate (MMA). The synthesis was achieved by a practical exchange ligand ...
    • An oximino tautomer of 1-n-decyl-4-hydroxyimino-3-methyl-1H-pyrazol-5(4H)-one 
      Belmar, Julio; Jiménez Carvajal, Claudio; Ortiz, Leandro; Garland, María Teresa; Baggio, Ricardo (BLACKWELL, 2006-02)
      The title compound, C14H25N3O2, consists of a five-membered heterocyclic ring to which a pendant decyl group is attached. The oximino tautomeric character of the molecule is clearly defined by the distribution of well ...
    • Oxygenation variability in Mejillones Bay, off northern Chile, during the last two centuries 
      Díaz Ochoa, J. A.; Pantoja, S.; Lange, G. J. de; Lange, C. B.; Sánchez, G. E.; Acuña, V. R.; Muñoz, P.; Vargas Easton, Víctor (COPERNICUS GESELLSCHAFT MBH, 2011)
      The Peru Chile Current ecosystem is characterized by high biological productivity and important fisheries. Although this system is likely to be severely affected by climate change, its response to current global warming ...
    • Oxygenation variability off Northern Chile during the last two centuries 
      Díaz Ochoa, J. A.; Pantoja, S.; Lange, G. J. de; Lange, C. B.; Sánchez, G. E.; Acuña, V. R.; Muñoz, P.; Vargas, G. (2010)
    • Ozone distribution in the lower troposphere over complex terrain in Central Chile 
      Seguel, Rodrigo J.; Mancilla, Carlos A.; Rondanelli Rojas, Roberto; Leiva Guzmán, Manuel; Morales Segura, Raúl (American Geophysical Union, 2013)
      Observations were performed in 12 communities of Central Chile in order to determine the horizontal gradients of ozone in the Santiago Basin and surrounding valleys. Higher ozone mixing ratios were found northeast of the ...