711 research outputs found
Ran Blake, un homme en noir
Le Laura, de Ran Blake un homme en noir et Jeanne Lee a marqué l’histoire du jazz d’un diamant noir il y aura cinquante ans cette année. Chef-d’oeuvre inaugural, il a largement occulté une oeuvre unique, quelque peu secrète, profondément marquée par l’univers du cinéma noir
Jazz et musique improvisée, de la presse au pressoir
Comment exercer le
métier de bibliothécaire
musical dans le
paysage contrasté que
dessinent majors et
indépendants ? Entre
le rêve des marchands
et l’utopie réalisée :
parcours dans un champ
de mines
Constraining the nuclear equation of state at subsaturation densities
Only one third of the nucleons in Pb occupy the saturation density
area. Consequently nuclear observables related to average properties of nuclei,
such as masses or radii, constrain the equation of state (EOS) not at
saturation density but rather around the so-called crossing density, localised
close to the mean value of the density of nuclei: 0.11 fm.
This provides an explanation for the empirical fact that several EOS quantities
calculated with various functionals cross at a density significantly lower than
the saturation one. The third derivative M of the energy at the crossing
density is constrained by the giant monopole resonance (GMR) measurements in an
isotopic chain rather than the incompressibility at saturation density. The GMR
measurements provide M=1110 70 MeV (6% uncertainty), whose extrapolation
gives K=230 40 MeV (17% uncertainty).Comment: 4 pages, 4 figure
Transcription profiling of the chilling requirement for bud break in apples: a putative role for FLC-like genes.
doi:10.1093/jxb/erv0
The human OPA1delTTAG mutation induces premature age-related systemic neurodegeneration in mouse
Dominant optic atrophy is a rare inherited optic nerve degeneration caused by mutations in the mitochondrial fusion gene OPA1. Recently, the clinical spectrum of dominant optic atrophy has been extended to frequent syndromic forms, exhibiting various degrees of neurological and muscle impairments frequently found in mitochondrial diseases. Although characterized by a specific loss of retinal ganglion cells, the pathophysiology of dominant optic atrophy is still poorly understood. We generated an Opa1 mouse model carrying the recurrent Opa1(delTTAG) mutation, which is found in 30% of all patients with dominant optic atrophy. We show that this mouse displays a multi-systemic poly-degenerative phenotype, with a presentation associating signs of visual failure, deafness, encephalomyopathy, peripheral neuropathy, ataxia and cardiomyopathy. Moreover, we found premature age-related axonal and myelin degenerations, increased autophagy and mitophagy and mitochondrial supercomplex instability preceding degeneration and cell death. Thus, these results support the concept that Opa1 protects against neuronal degeneration and opens new perspectives for the exploration and the treatment of mitochondrial diseases
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