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Les filtres particulaires sont une famille de méthodes numériques permettant de traiter des problèmes d'estimation non-linéaires et non-Gaussiens. Ils constituent un domaine de recherche actif. En particulier, les nouveaux travaux sur le filtre particulaire dans les groupes de Lie présentés dans cet article démontrent des résultats numériques prometteurs. Les algorithmes proposés sont testés sur un scénario de navigation longue portée.

A complete-spectroscopy investigation of low-lying, low-spin states in the one-proton-hole and one-neutron-hole nucleus $^{206}$Tl has been performed by using thermal neutron capture and γ-coincidence technique with the FIPPS Ge array at ILL Grenoble. The new experimental results, together with data for the one-proton-particle and one-neutron-particle nucleus $^{210}$Bi (taken from a previous study done at ILL in the EXILL campaign), allowed for an extensive comparison with predictions of shell-model calculations performed with realistic interactions. No phenomenological adjustments were introduced in the calculations. In $^{210}$Bi, state energies, transition multipolarities and decay branchings agree well with theory for the three well separated multiplets of states which dominate the low-lying excitations. On the contrary, in $^{206}$Tl significant discrepancies are observed: in the same energy region, six multiplets were identified, with a significant mixing among them being predicted, as a consequence of the smaller energy separation between the active orbitals. The discrepancies in $^{206}$Tl are attributed to the larger uncertainties in the determination of the off-diagonal matrix elements of the realistic shell-model interaction with respect to the calculated diagonal matrix elements, the only ones playing a major role in the case of $^{210}$Bi. The work points to the need of more advanced approaches in the construction of the realistic interactions.

The discovery, in the last twenty years, of several ancientinscriptions in the Creuze and its whereabouts has enabledscholars to add new texts or new readings to the epigraphicrecords of the Limousin region. New insights or newinterpretations concorning onomastic and the Lémovicepopulation have thus been put forward. Most of theseinscriptions reveal a funeral dedication, sometimes engravedon a simple surface and at other times related to a mausoleum.This lends support to the observations made in the field byarchaeologists., La découverte ces vingt dernières années de plusieursinscriptions antiques dans le département de la Creuse et àproximité a été l’occasion d’apporter de nouveaux textes ou denouvelles lectures dans le dossier épigraphique du Limousin.Des nouveautés importantes ou des interprétations nouvellessur l’onomastique et sur la population lémovice ont ainsi puêtre proposées. La plupart révèlent une dédicace funéraire,parfois inscrite sur un simple support, parfois en relation avecun mausolée, validant ainsi les observations archéologiques deterrain.

The discovery, in the last twenty years, of several ancient inscriptions in the Creuze and its whereabouts has enabled scholars to add new texts or new readings to the epigraphic records of the Limousin region. New insights or new interpretations concorning onomastic and the Lémovice population have thus been put forward. Most of these inscriptions reveal a funeral dedication, sometimes engraved on a simple surface and at other times related to a mausoleum. This lends support to the observations made in the field by archaeologists., La découverte ces vingt dernières années de plusieurs inscriptions antiques dans le département de la Creuse et à proximité a été l’occasion d’apporter de nouveaux textes ou de nouvelles lectures dans le dossier épigraphique du Limousin. Des nouveautés importantes ou des interprétations nouvelles sur l’onomastique et sur la population lémovice ont ainsi pu être proposées. La plupart révèlent une dédicace funéraire, parfois inscrite sur un simple support, parfois en relation avec un mausolée, validant ainsi les observations archéologiques de terrain., Blanc Aurélien, Dussot Dominique, Lamoine Laurent, Roger Jacques. Inscriptions dans la cité des Lémovices : de nouveaux textes et de nouvelles lectures pour une meilleure connaissance de la population et de leurs pratiques funéraires. In: Aquitania : une revue inter-régionale d'archéologie, tome 33, 2017. pp. 145-172.

The study of fission yields has a major impact on the characterization and understanding of the fission process and is mandatory for reactor applications. The mass and isotopic yields of the fission fragments have a direct influence on the amount of neutron poisons that limit the fuel burnup and on the evaluation of the residual power of the reactor after shutdown. The fission yields of the plutonium nuclides are also mandatory for the studies on the fuel multi-recycling. In order to significantly improve the precision of nuclear data, more and more fundamental fission models are used in the evaluation processing. Therefore, tests of fission models become a central issue to achieve a coherent libraries of nuclear data. In this framework, an important investigation in the experimental limits of facilities is required to provide complete sets of data with their coherent variance-covariance matrices. In the past with the LOHENGRIN spectrometer of the ILL, priority has been given for the studies in the light fission fragment mass range. The LPSC in collaboration with ILL and CEA has developed a measurement program on symmetric and heavy mass fission fragment distributions. The combination of measurements with ionisation chamber and Ge detectors is necessary to describe precisely the heavy fission fragment region in mass and charge. Recently, new measurements of fission yields and kinetic energy distributions, with different fissioning systems, were performed with this facility. The focus has been done on the selfnormalization of the data to provide new absolute measurements, independently of any libraries, and the experimental covariance matrix. To reach precise measurements, a new experimental procedure was developed along with a new analysis method based on metadata. Because of the complex correction scheme from count rates to yields, a classical propagation uncertainty is not possible. The new analysis path gives the mean value of mass yields, its probability density function and the associated experimental variance-covariance matrices. All this information is a first step to bring nuclear data into statistical tests of the underlying hypothesis of fission models.

International audience; Étude d'une inscription fragmentaire découverte dans le soubassement de l'église de Moussages (Cantal)

This article deals with the connections between elites and territories. It is based on epigraphy in Limousin, France and includes three magistrates of the city of Lemovices and two priests of Confluent. The notion of "elite", though, goes beyond its usual political meaning and should include all the people having an eminent social position in local society., Cet article permet de réaliser un état des lieux des rapports entre élites et territoires à partir de la documentation épigraphique du Limousin. Ce corpus comporte trois magistrats de la cité des Lémovices et deux prêtres du Confluent. Cependant, le concept d’élite dépasse la seule définition politique et permet d’appréhender d’autres individus qui occupent une position éminente dans la société locale.