Catálogo de revistas impresas de la biblioteca

Se encontraron 56 resultados.

Artículo:: Near-infrared background anisotropies from diffuse intrahalo light of galaxies
Autor:: Asantha Cooray, Joseph Smidt, Francesco De Bernardis, Yan Gong, Daniel Stern+ et al.
Resumen:: Measurements of the anisotropy power spectrum of the cosmic near-infrared background radiation show the clustering amplitude to be larger than existing model predictions involving distant primordial galaxies or nearby faint galaxies: the fluctuations are proposed to originate from intrahalo stars of all galaxies with dark-matter haloes of 109 to 1012 solar masses at redshifts of about 1 to 4.
Página:: 514
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7421
Periodo:: 25 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-25.txt

Artículo:: Quasi-periodic events in crystal plasticity and the self-organized avalanche oscillator
Autor:: Stefanos Papanikolaou, Dennis M. Dimiduk, Woosong Choi, James P. Sethna, Michael D. Uchic+ et al.
Resumen:: A crystalline material is investigated that responds to a slowly increasing external stress by exhibiting impulsive ‘avalanche’ behaviour as well as smooth stress release that is approximately as slow as the external stress rate; unusual oscillatory behaviour in the avalanche time series is reported.
Página:: 517
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7421
Periodo:: 25 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-25.txt

Artículo:: Forming all-carbon quaternary stereogenic centres in acyclic systems from alkynes
Autor:: Yury Minko, Morgane Pasco, Lukas Lercher, Mark Botoshansky & Ilan Marek
Resumen:: The synthesis of an all-carbon quaternary stereocentre in an acyclic system is reported; the chemical transformation involves the formation of two new stereogenic centres—including the challenging all-carbon quaternary one in an aldol adduct—via a combined carbometalation–oxidation reaction, giving a stereodefined trisubstituted enolate.
Página:: 522
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7421
Periodo:: 25 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-25.txt

Artículo:: Recent changes to the Gulf Stream causing widespread gas hydrate destabilization
Autor:: Benjamin J. Phrampus & Matthew J. Hornbach
Resumen:: Seismic data and modelling are used to reveal clathrate destabilization along the eastern margin of the United States; the destabilization is probably linked to warming, or a slight shift, in the Gulf Stream.
Página:: 527
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7421
Periodo:: 25 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-25.txt

Artículo:: The origin of the terrestrial noble-gas signature
Autor:: Svyatoslav S. Shcheka & Hans Keppler
Resumen:: The solubility of argon in lower mantle minerals is shown to be much higher than for xenon, so that the depletion of xenon relative to argon in Earth’s atmosphere can be explained by mantle degassing.
Página:: 531
Sección:: LETTERS
Publicación:: Nature
Volúmen:: 490
Número:: 7421
Periodo:: 25 octubre 2012
ISSN:: 00280836
SrcID:: 00280836-2012-10-25.txt

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