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Mostrando ítems 81-90 de 189
Artículo
Imprints of historical pollution and the 218-60 BCE tsunamigenic period in southwestern Spain
(Universidad Nacional Autónoma de México (UNAM), 2020)
The Doñana National Park is a Biosphere Reserve located within the estuary of the Guadalquivir River (SW Spain). It is mainly composed of extensive fluvio-tidal marshes partially protected by an elongated sandy spit. ...
Artículo
Asymptotically nonexpansive mappings in modular function spaces
(Elsevier, 2002-01-15)
In this paper, we prove that if ρ is a convex, σ-finite modular function satisfying a ∆2-type condition, C a convex, ρ-bounded, ρ-a.e. compact subset of Lρ and T : C → C a ρ-asymptotically nonexpansive mapping, then T has ...
Artículo
A refinement of the concept of equilibrium in multiple objective continuous games
(Real Academia de Ciencias Exactas, Físicas y Naturales, 1999)
This paper considers a perfection refinement of the concept of equihbrium for multiple objective non-zero sum games. Based on the ideas of van Damme (1991) on perturbed games and stability the concept of perfect equilibrium ...
Ponencia
The aquation of Po(IV): A quantum chemical study
(American Institute of Physics, 2007)
The aim of this work is to present theoretical resuhs of the hydration of the Po(IV) in solution. Particular attention is paid to the level of calculation needed to properly describe the system under study: Po(IV) coordination ...
Artículo
Purely dynamical signature of the orientational glass transition
(American Physical Society, 1999-10-04)
The dynamics of the freezing transition of the rotator phase crystal of ethanol into its orientational glass phase is monitored by measurements of molecular rotational components in the quasielastic neutron scattering ...
Artículo
Anharmonic double-phonon excitations in the interacting boson model
(American Physical Society, 2002-12-01)
Double−γ vibrations in deformed nuclei are analyzed in the context of the interacting boson model. A simple extension of the original version of the model towards higher-order interactions is required to explain the observed ...
Artículo
Metallicity maps of the globular cluster system in the galaxy
(IOP Publishing Ltd., 1993-01-10)
The spatial metallicity distribution in the Galaxy, as depicted by the globular cluster system, is analyzed. Two metallicity maps (on the ω - |Z| plane) corresponding to the halo and disk subsamples (Zinn 1985) have been ...
Artículo
Chiral sulfur derivatives in the allylation of acyl hydrazones: C 2-symmetric bis-sulfinamides as enhanced chiral organic promoters
(Royal Society of Chemistry, 2010-10)
Monosulfinamides and C2-symmetric bis-sulfinamides are convenient neutral chiral promoters in the allylation of acyl hydrazones, the nature of the spacer and the substituent at the sulfinyl sulfur are key elements for the ...
Artículo
Orientational transitions in a nematic liquid crystal confined by competing surfaces
(American Physical Society, 2001)
The effect of confinement on the orientational structure of a nematic liquid crystal model has been investigated by using a version of density-functional theory. We have focused on the case of a nematic confined by opposing ...
Artículo
Anharmonic double-γ vibrations in nuclei and their description in the interacting boson model
(American Physical Society, 2000-04-01)
Double-γ vibrations in deformed nuclei are studied in the context of the interacting boson model with special reference to their anharmonic character. It is shown that large anharmonicities can be obtained with interactions ...