Rochechouart – La Pouge Périgord

Code Insee commune : 87126Lien Atlas (MCC) :http://atlas.patrimoines.culture.fr/atlas/trunk/index.php?ap_theme=DOM_2.01.02&ap_bbox=0.776;45.790;0.919;45.867 Cette intervention s’inscrit dans le cadre des recherches du trajet et des localisations de captage de l’aqueduc principal alimentant en eau les thermes de l’agglomération antique de Chassenon, situés dans le département de la Charente. Lors des prospections pédestres menées en 2012 dans le département voisin de la Haute-Vienne, sur le ch..

L'alimentation en eau de Chassenon

Identifiant de l'opération archéologique : 204731 Date de l'opération : 2009 (PI) L’alimentation en eau de l'aqueduc principal des thermes de Chassenon. Les prospections pédestres réalisées durant l’année 2009, s’inscrivent dans le cadre de la recherche de l’alimentation en eau de l’aqueduc principal des thermes de Chassenon (Cassinomagus). Une étude géophysique effectuée par Cécilia Bobée en 2007, a suggéré une zone de captage qui a donné lieu, en 2008, ..

Séminaire collectif du Groupe de recherches sur les missions religieuses dans le monde ibérique moderne

Pierre-Antoine Fabre et Bernard Vincent, directeurs d’études Compte rendu non communiqué

Code Generation for an Application-Specific VLIW Processor With Clustered, Addressable Register Files

International audienceModern compilers integrate recent advances in compiler construction, intermediate representations, algorithms and programming language front-ends. Yet code generation for appli\-cation-specific architectures benefits only marginally from this trend, as most of the effort is oriented towards popular general-purpose architectures. Historically, non-orthogonal architectures have relied on custom compiler technologies, some retargettable, but largely decoupled from the evolution of mainstream tool flows. Very Long Instruction Word (VLIW) architectures have introduced a variety of interesting problems such as clusterization, packetization or bundling, instruction scheduling for exposed pipelines, long delay slots, software pipelining, etc. These have been addressed in the literature, with a focus on the exploitation of Instruction Level Parallelism (ILP). While these are well known solutions already embedded into existing compilers, they rely on common hardware functionalities that are expected to be present in a fairly large subset of VLIW architectures. This paper presents our work on back-end compiler for Mephisto, a high performance low-power application-specific processor, based on LLVM. Mephisto is specialized enough to challenge established code generation solutions for VLIW and DSP processors, calling for an innovative compilation flow. Conversely, even though Mephisto might be seen a somewhat exotic processor, its hardware characteristics such as addressable register files benefit from existing analyses and transformations in LLVM. We describe our model of the Mephisto architecture, the difficulties we encountered, and the associated compilation methods, some of them new and specific to Mephisto

Introduction

L’idée du dossier thématique « Libre accès et données de la recherche. Quelle résonance dans les SIC ? » était de proposer un espace d’études et de réflexions autour des données de recherche, avec les cadres théoriques et les approches méthodologiques de notre discipline, sur les quatre axes suivants : 1. Interrogation opérationnelle : analyse des dispositifs de la gestion des données de la recherche (plates-formes, réseaux...), formes de médiation et de communication des données de la recher..

Séminaire du groupe collectif du Groupe de recherches sur les missions religieuses dans le monde ibérique moderne

Bernard Vincent et Pierre-Antoine Fabre, directeurs d’étudesJean-Paul Zuñiga, maître de conférences à l’Université de Reims Le séminaire du Groupe de recherches a poursuivi cette année dans la voie qu’il s’est tracée : la présentation de divers domaines dans lesquels s’inscrit le phénomène missionnaire à l’époque moderne et contemporaine. Ce séminaire vise ainsi d’une part à situer l’histoire religieuse (dans ses dimensions institutionnelle, culturelle, spirituelle, rituelle) dans des cadres ..

A platform for a dialogue to be continued. Forward thinking in agriculture and food

International audienceHow can agriculture produce food for 9 billion inhabitants in 2050 and achieve the Millennium Development Goals of alleviating poverty, reducing hunger and protecting the environment? In order to take up these challenges and to design tomorrow's food and agriculture systems, research organizations have to define strategies and options, and public policy makers their priorities from now on, relying on foresight studies. Various studies have been conducted to assess scenarios for the long-term future of food and agriculture in the world. Each one has its own objectives, methodologies, and results. Analyzing, comparing and discussing hypotheses, methodologies and results were the objectives of the FI4IAR/CTA seminar "Thinking Forward: assessments, projections and foresights", organized during the GCARD 2010 process. This dialogue, which sometimes led to scientific disputes, proved productive and encouraging. Is it a forum that should be continued in the future

Telomere tethering at the nuclear periphery is essential for efficient DNA double strand break repair in subtelomeric region

In the yeast Saccharomyces cerevisiae that lacks lamins, the nuclear pore complex (NPC) has been proposed to serve a role in chromatin organization. Here, using fluorescence microscopy in living cells, we show that nuclear pore proteins of the Nup84 core complex, Nup84p, Nup145Cp, Nup120p, and Nup133p, serve to anchor telomere XI-L at the nuclear periphery. The integrity of this complex is shown to be required for repression of a URA3 gene inserted in the subtelomeric region of this chromosome end. Furthermore, altering the integrity of this complex decreases the efficiency of repair of a DNA double-strand break (DSB) only when it is generated in the subtelomeric region, even though the repair machinery is functional. These effects are specific to the Nup84 complex. Our observations thus confirm and extend the role played by the NPC, through the Nup84 complex, in the functional organization of chromatin. They also indicate that anchoring of telomeres is essential for efficient repair of DSBs occurring therein and is important for preserving genome integrity