Browsing by Title Artículos de revistas

Now showing items 3130-3149 of 7550

    • Highly emissive host-guest based on nanoclay intercalated with an Eu3+ complex bearing a new Ru2+ organometallic ... 
      Celedón, Salvador; De Camargo, Andréa; Fuentealba, Mauricio; Artigas, Vania; Benavente, Eglantina; González Moraga, Guillermo (Royal Society of Chemistry, 2018)
      This work describes the design, synthesis and physicochemical properties of the highly emissive nanocomposite [bentonite][Eu{(η5-Cp*)Ru(η6-bzac)}3Phen]0.09[H2O]0.22 based on the Eu(III) complex [Eu{(η5-Cp*)Ru(η6-bzac)}3P ...
    • Highly siderophile elements mobility in the subcontinental lithospheric mantle beneath southern Patagonia 
      Tassara, Santiago; González Jiménez, José M.; Reich Morales, Martín; Saunders, Edward; Luguet, Ambre; Morata Céspedes, Diego; Grégoire, Michel; van Acken, David; Schilling, Manuel E.; Barra Pantoja, Luis; Nowell, Geoff; Corgne, Alexandre (Elsevier, 2018)
      Peridotite xenoliths collected from alkali basalts in the Argentinian Patagonia reveal the existence of an ancient depleted Paleoproterozoic mantle that records a subsequentmultistage metasomatic history.Metasomatismis ...
    • Highway franchising and real estate values 
      Engel Goetz, Eduardo; Fischer Barkan, Ronald; Galetovic Potsch, Alexander (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2005-05)
      It has become increasingly common worldwide to auction the construction and operation of new highways to the bidder that charges the lowest toll. The resulting highway franchises often entail large increases in the value ...
    • High‑strength reinforcing steel bars: low cycle fatigue behavior using RGB methodology 
      Egger, Jorge E.; Rojas Barrales, Fabián Rodolfo; Massone Sánchez, Leonardo Maximiliano (Springer, 2021)
      Low cycle fatigue life of high-strength reinforcing steel bars (ASTM A706 Grade 80), using photogrammetry by RGB methodology is evaluated. Fatigue tests are performed on specimens under constant axial displacement with ...
    • Hint of curvature in the orbital motion of the exoplanet 51 Eridani b using 3 yr of VLT/SPHERE monitoring 
      Maire, A. L.; Rodet, L.; Cantalloube, F.; Galicher, R.; Brandner, W.; Messina, S.; Lazzoni, C.; Mesa, D.; Melnick, D.; Carson, J.; Samland, M.; Biller, B. A.; Boccaletti, A.; Wahhaj, Z.; Beust, H.; Bonnefoy, M.; Chauvin, G.; Desidera, S.; Langlois, M.; Henning, T.; Janson, M (EDP Sciences, 2019)
      Context. The 51 Eridani system harbors a complex architecture with its primary star forming a hierarchical system with the binary GJ 3305AB at a projected separation of 2000 au, a giant planet orbiting the primary star at ...
    • Historical and recent large megathrust earthquakes in Chile 
      Ruiz Tapia, Sergio; Madariaga, R. (Elsevier, 2018-05)
      Recent earthquakes in Chile, 2014, Mw 8.2 Iquique, 2015, Mw 8.3 Illapel and 2016, Mw 7.6 Chiloe have put in evidence some problems with the straightforward application of ideas about seismic gaps, earthquake periodicity ...
    • Historical seismicity in oceans from sailors' testimonies 
      Rouland, Daniel; Legrand, Denis; Cisternas, Armando; Streng, Daniel; Gir, Roopa; Souriau, Annie (Springer, 2016)
      Before seismological catalogs were routinely produced, seafarers experienced major seismic events at sea that were documented in their logs. This article analyzes some of these old records-mostly from eighteenth and ...
    • HIV Treatment in Resource-Limited Environments: Treatment Coverage and Insights 
      Khademi, Amin; Sauré Valenzuela, Denis; Schaefer, Andrew; Nucifora, Kimberly; Braithwaite, Scott; Roberts, Mark S. (Elsevier, 2015)
      Background: The effects of antiretroviral treatment on the HIV epidemic are complex. HIV-infected individuals survive longer with treatment, but are less likely to transmit the disease. The standard coverage measure improves ...
    • HIV-related tuberculosis: Mortality risk in persons without vs. With culture-confirmed disease 
      Crabtree-Ramírez, B.; Jenkins, C.; Jayathilake, K.; Carriquiry, G.; Veloso, V.; Padgett, D.; Gotuzzo, E.; Cortes, C.; Mejia, F.; McGowan, C. C.; Duda, S.; Shepherd, B. E.; Sterling, T. R. (International Union against Tubercul. and Lung Dis., 2019)
      BACKGROUND: Tuberculosis (TB) diagnosis in human immunodeficiency virus (HIV) positive persons is difficult, particularly in resource-limited settings. The relationship between TB culture status and mortality in HIV-positive ...
    • Holocene evolution and geochronology of a semiarid fluvial system in the western slope of the Central Andes: ... 
      Cabre Cano, Albert; Aguilar Martorell, Germán; Riquelme Salazar, Rodrigo (Elsevier, 2017)
      In this paper, we discriminate the contribution of the different sediment sources into a river situated in the semiarid region of northern Chile, differentiating the ones driven by the paraglacial response from the ones ...
    • Holocene glacier behavior around the northern Antarctic Peninsula and possible causes 
      Kaplan, M. R.; Strelin, J. A.; Schaefer, J. M.; Peltier, C.; Martini, M. A.; Flores, E.; Winckler, G.; Schwartz, R. (Elsevier, 2020)
      We obtained 49 new Be-10 ages that document the activity of the former Northern Antarctic Peninsula Ice Sheet, and subsequently the James Ross Island Ice Cap and nearby glaciers, from the end of the last glacial period ...
    • Holocene history of río tranquilo glacier, monte San Lorenzo (47°S), Central Patagonia 
      Sagredo, Esteban A.; Reynhout, Scott Andrew; Kaplan, Michael R.; Aravena, Juan C.; Araya, Paola S.; Luckman, Brian H.; Schwartz, Roseanne; Schaefer, Joerg M. (Frontiers Media, 2021)
      The causes underlying Holocene glacier fluctuations remain elusive, despite decades of research efforts. Cosmogenic nuclide dating has allowed systematic study and thus improved knowledge of glacier-climate dynamics ...
    • Holographic surface measurement system for the Fred Young Submillimeter Telescope 
      Ren X., Astudillo P., Graf U.U., Hills R.E., Jorquera S., Nikolic B., Parshley S.C., Reyes N., Weikert L. (SPIE, 2020)
    • Homogeneous analysis of the dust morphology of transition disks observed with ALMA: investigating dust ... 
      Pinilla, P.; Tazzari, M.; Pascucci, I.; Youdin, A. N.; Garufi, A.; Manara, C. F.; Testi, L.; Van der Plas, Gerrit; Barenfeld, S. A.; Canovas, H.; Cox, E. G.; Hendler, N. P.; Pérez, L. M.; van der Marel, N. (Iop Publishing LTD., 2018-05-20)
      We analyze the dust morphology of 29 transition disks (TDs) observed with Atacama Large (sub-)Millimeter Array (ALMA) at (sub-)millimeter emission. We perform the analysis in the visibility plane to characterize the total ...
    • Homogeneous photometry and star counts in the field of 9 Galactic star clusters 
      Seleznev, A. F.; Carraro, Giovanni; Costa Hechenleitner, Edgardo; Loktin, A. V. (Elsevier, 2010)
      We present homogeneous V, I CCD photometry of nine stellar fields in the two inner quadrants of the Galactic plane. The lines-of-view to most of these fields aim in the direction of the very inner Galaxy, where the ...
    • Homogenization of a class of nonlinear eigenvalue problems 
      Baffico Haramoto, Leonardo; Conca Rosende, Carlos; Rajesh, M. (ROYAL SOC EDINBURGH, 2006)
      In this article we study the asymptotic behaviour of the eigenvalues of a family of nonlinear monotone elliptic operators of the form A(epsilon) = - div(a(epsilon) (x, del u)), which are sub-differentials of even, positively ...
    • Homogenization of a Transmission Problem in Solid Mechanics 
      Baffico Haramoto, Leonardo; Conca Rosende, Carlos (1999)
      In this paper we study a simplified model of the behavior of a 3-D solid made from two elastic homogeneous materials separated by a rapidly oscillating interface. We study the asymptotic beha¨ior of the solution of such ...
    • Homogenization of elastic media with gaseous inclusions 
      Baffico Haramoto, Leonardo; Grandmont, C.; Maday, Y.; Osses Alvarado, Axel (SIAM PUBLICATIONS, 2008)
      We study the asymptotic behavior of a system modeling a composite material made of an elastic periodically perforated support, with period epsilon > 0, and a perfect gas placed in each of these perforations, as epsilon ...
    • Homogenization of periodic structures via bloch decomposition 
      Conca Rosende, Carlos; Vanninathan, Muthusamy (1997-12)
      In this paper, the classical problem of homogenization of elliptic operators in arbitrary domains with periodically oscillating coe cients is considered. Using Bloch wave decomposition, a new proof of convergence is ...
    • Hopf-algebraic deformations of products and wick polynomials 
      Ebrahimi-Fard, Kurusch; Patras, Frédéric; Tapia, Nikolas; Zambotti, Lorenzo (Oxford University Press, 2020)
      We present an approach to cumulant–moment relations and Wick polynomials based on extensive use of convolution products of linear functionals on a coalgebra. This allows, in particular, to understand the construction ...