Genralized Robustness of Entanglement

The robustness of entanglement results of Vidal and Tarrach considered the problem whereby an entangled state is mixed with a separable state so that the overall state becomes non-entangled. In general it is known that there are also cases when entangled states are mixed with other entangled states and where the sum is separable. In this paper, we treat the more general case where entangled states can be mixed with any states so that the resulting mixture is unentangled. It is found that entangled pure states for this generalized case have the same robustness as the restricted case of Vidal and Tarrach.Comment: Final version. Editorial changes and references added to independent wor

In brief: 'Revolving door' lobbyists

Jordi Blanes i Vidal, Mirko Draca and Christian Fons-Rosen estimate the value of political connections in Washington

In memory of Marcos Vidal (1974-2016)

With the untimely death of Marcos Vidal, we have lost a good friend and a creative, brilliant colleague who made important contributions to the field of cancer biology through fruit fly research. Marcos began his research into Drosophila at Ross Cagan's laboratory in 2003, first at Washington University in St Louis and later at Mount Sinai Hospital in New York. In 2009 Marcos was appointed as Research Group Leader at the Beatson Institute for Cancer Research in Glasgow

Corrigendum to "The upper atmosphere of the exoplanet HD209458b revealed by the sodium D lines: Temperature-pressure profile, ionization layer and thermosphere" [2011, A&A, 527, A110]

An error was detected in the code used for the analysis of the HD209458b sodium profile (Vidal-Madjar et al. 2011). Here we present an updated T-P profile and briefly discuss the consequences.Comment: Published in Astronomy & Astrophysics, 533, C

Systematic position and cladistic analysis of Gyrasida Koch, a remarkable genus of Praocini (Coleoptera: Tenebrionidae) from Chile

Gyrasida Koch (Pimeliinae: Praocini), distributed in central Chile is elevated to generic status and transferred from Asidini to Praocini on the basis of constant tribal level characters. Prior to this study Gyrasida was considered a subgenus of the South African Afrasida Wilke. Character states of Gyrasida shared with the other genera of Praocini and not shared with genera of Asidini are discussed. A cladistic analysis of the six species of the genus is presented including: G. propensa (Wilke) (type species), G. lucianoi Flores & Vidal, G. fernandoi Flores & Vidal, G. tomasi Vidal, G. franciscae Vidal, and G. camilae Vidal. This article includes a redescription of the genus, habitus photographs, illustrations of external morphology and genitalic features, a cladogram, and a distribution map. Koch (Pimeliinae: Praocini), distributed in central Chile is elevated to generic status and transferred from Asidini to Praocini on the basis of constant tribal level characters. Prior to this study Gyrasida was considered a subgenus of the South African Afrasida Wilke. Character states of Gyrasida shared with the other genera of Praocini and not shared with genera of Asidini are discussed. A cladistic analysis of the six species of the genus is presented including: G. propensa (Wilke) (type species), G. lucianoi Flores & Vidal, G. fernandoi Flores & Vidal, G. tomasi Vidal, G. franciscae Vidal, and G. camilae Vidal. This article includes a redescription of the genus, habitus photographs, illustrations of external morphology and genitalic features, a cladogram, and a distribution map.Fil: Flores, Gustavo Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Provincia de Mendoza. Instituto Argentino de Investigaciones de las Zonas Áridas. Universidad Nacional de Cuyo. Instituto Argentino de Investigaciones de las Zonas Áridas; ArgentinaFil: Vidal, Pedro. Universidad Católica de Chile; Chil