Portail HAL du Collège de France
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22122 research outputs found
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"Tennyi Lingpa (b. 1480–d.1535)"
No full textBiography of bsTan gnyis gling pa Padma Tshe dbang rgyal po (b. 1480–d.1535)
“Book-review of Esler Dylan, Effortless Spontaneity. The Dzogchen Commentaries by Nubchen Sangye Yeshe”
No full textInternational audienc
Byzantine Geometric Metrology. An Overview with an Edition of the Compendium
No full textInternational audienceThe article presents an overview of Byzantine geometric metrology and an edition of a complete yet anonymous set of metrological prescriptions, here called the Compendiu
La Lampe du Discernement, Commentaire sur la Consécration au Dynamisme (du Discernement) (rTsal dbang ti ka rig pa’i sgron ma)
No full text“The Intertextual Conversation between the Psalms and the Book of Jeremiah: Psalm 78 as a Test Case”
No full textInternational audienc
Luttinger surface dominance and Fermi liquid behaviour of topological Kondo insulators SmB and YbB
No full textInternational audienceDefying the traditional classification into metals and insulators, several materials simultaneously display metallic thermal properties and insulating electric behaviour, as if they hosted quasiparticles carrying entropy but not charge. Among them, some materials also possess quantum oscillations in magnetic fields as if they had well-defined Fermi surfaces despite the insulating gap. This remarkable dichotomy has been observed in the topological Kondo insulators SmB and YbB. Prompted by the peculiar mixed-valence nature of these compounds, involving and electrons of the lanthanide, we propose an explanation of their intriguing properties drawing inspiration from the physics of the pseudogap phase in underdoped cuprates. We argue that the and subsystems, when considered separately, act, respectively, as electron- and hole-doped Mott insulators, featuring Fermi pockets coexisting with Luttinger surfaces responsible for the pseudogap. When the two are coupled to each other a hybridisation gap opens up, and the whole turns into a topological insulator endowed with genuine chiral edge states. However, the Luttinger surfaces persist and support neutral quasiparticles. This scenario, supported by numerical simulations within the dynamical cluster approximation, effectively resolves the paradoxical phenomenology of SmB and YbB
Les pratiques d'un orientalisme en situation coloniale : retour d’enquête
No full textInternational audienc
Proteomic analysis of SARS-CoV-2 particles unveils a key role of G3BP proteins in viral assembly
No full textInternational audienceConsiderable progress has been made in understanding the molecular host-virus battlefield during SARS-CoV-2 infection. Nevertheless, the assembly and egress of newly formed virions are less understood. To identify host proteins involved in viral morphogenesis, we characterize the proteome of SARS-CoV-2 virions produced from A549-ACE2 and Calu-3 cells, isolated via ultracentrifugation on sucrose cushion or by ACE-2 affinity capture. Bioinformatic analysis unveils 92 SARS-CoV-2 virion-associated host factors, providing a valuable resource to better understand the molecular environment of virion production. We reveal that G3BP1 and G3BP2 (G3BP1/2), two major stress granule nucleators, are embedded within virions and unexpectedly favor virion production. Furthermore, we show that G3BP1/2 participate in the formation of cytoplasmic membrane vesicles, that are likely virion assembly sites, consistent with a proviral role of G3BP1/2 in SARS-CoV-2 dissemination. Altogether, these findings provide new insights into host factors required for SARS-CoV-2 assembly with potential implications for future therapeutic targeting