منابع مشابه
Armand Leroi
widespread decisions, such as how a group of primates decide where to travel after a rest period or how a flock of birds decides when to leave a foraging patch. “Unless all members decide on the same action, some will be left behind and will forfeit, at least temporarily, the advantages of group living,” they write. “Thus, in order to maintain group cohesion, social animals — like humans — have...
متن کاملArmand Borel ( 1923 – 2003 )
The Swiss mathematician Armand Borel died August 11, 2003, in Princeton from a rapidly evolving cancer. Few foreign mathematicians had as many connections with France. He was a student of Leray, he took part in the Cartan seminar, and he published more than twenty papers in collaboration with our colleagues Lichnerowicz and Tits, as well as with me. He was a member of Bourbaki for more than twe...
متن کاملOp-brhe130268 1931..1932
We have known about the strong association between AS and the HLA-B*27 (B*27) gene for the past 40 years; however, the mechanism with which only some allomorphs of the HLA-B27 molecule, as well as some other HLA class I molecules, are involved in the occurrence of SpAs is still unclear [1]. In this issue of Rheumatology, Cauli et al. [2] present data that may aid our understanding of this mecha...
متن کاملObservations concerning Gödel’s 1931
This article demonstrates the invalidity of Theorem VI in Gödel’s 1931, showing that propositions (15) and (16), derived from the definition 8.1, in its proof, are false in PA. Introduction. Developed as a consequence of the crisis of the foundation of mathematics due to the discovery of the antinomies, Hilbert’s formalism planned as criterions of adequacy for the axiomatic systems, the achieve...
متن کاملHorace Judson (1931–2011)
Scientists, I once heard, have an easier time of it than composers and artists. In a ‘‘new’’ field, such as molecular biology, anything that happened more than three weeks ago is ancient history (as Sidney Brenner once said). We bold scientific searchers, like born agains, rise each morning to fashion a new world, with our own discoveries in the form of facts, lots of them (check out the length...
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ژورنال
عنوان ژورنال: médecine/sciences
سال: 2020
ISSN: 0767-0974,1958-5381
DOI: 10.1051/medsci/2020136