Saint-Amé – Le Saint-Mont, chapelle Sainte-Claire

La plus ancienne des abbayes féminines rurales d’Austrasie, le monasterium Habendum, est une fondation luxovienne, installée, vers 620, dans un castrum tardo-antique au sommet d’un relief dominant le piémont vosgien et le confluent de la Moselle et de la Moselotte. Le Saint-Mont – telle est depuis le xiiie s. la dénomination en usage pour désigner ce sommet – est abandonné par les religieuses dans les premières décennies du ixe s. puis réoccupé au xiie s., jusqu’à la Révolution française, par..

Worldwide Distribution of Major Clones of Listeria monocytogenes

Listeria monocytogenes is worldwide a pathogen, but the geographic distribution of clones remains largely unknown. Genotyping of 300 isolates from the 5 continents and diverse sources showed the existence of few prevalent and globally distributed clones, some of which include previously described epidemic clones. Cosmopolitan distribution indicates the need for genotyping standardization

Origin and mobility of Iron Age Gaulish groups in present-day France revealed through archaeogenomics

The Iron Age period occupies an important place in French history, as the Gauls are regularly presented as the direct ancestors of the extant French population. We documented here the genomic diversity of Iron Age communities originating from six French regions. The 49 acquired genomes permitted us to highlight an absence of discontinuity between Bronze Age and Iron Age groups in France, lending support to a cultural transition linked to progressive local economic changes rather than to a massive influx of allochthone groups. Genomic analyses revealed strong genetic homogeneity among the regional groups associated with distinct archaeological cultures. This genomic homogenisation appears to be linked to individuals’ mobility between regions as well as gene flow with neighbouring groups from England and Spain. Thus, the results globally support a common genomic legacy for the Iron Age population of modern-day France that could be linked to recurrent gene flow between culturally differentiated communities

Synthesis and X-Ray Structure of a Borohydrido Metallocene of Neodymium and its Use as Pre-catalyst in Nd/Mg Dual-Component Ethylene and Isoprene Polymerisations.

Cp*2Nd(BH4)(THF) (1) (Cp* = C5Me5) has been readily obtained in one step from Nd(BH4)3(THF)3 and fully characterized by 1H NMR, IR spectroscopy, and elemental analysis. Its X-Ray structure displays a neutral monomeric complex, bearing one slightly distorted terminal BH4 group. Associated to nBuEtMg, 1 affords a highly active catalyst for ethylene polymerisation, the first one prepared from a borohydrido organolanthanide pre-catalyst. In the same experimental conditions, the catalytic behaviour of 1 is similar to that of previously described Cp*2NdCl2Li(Et2O)2 (2). The 1/nBuEtMg system is not deactivated even in the presence of large excesses of THF. In contrast to its chloro homologue 2, the addition of 1 equivalent of nBuEtMg to 1 affords a catalyst for a trans-selective polymerisation of isoprene

D’Amé à l’abbesse Imma, Approche topographique du Romarici mons (VIIe – IXe siècle)

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