Rapid response to the M_w 4.9 earthquake of November 11, 2019 in Le Teil, Lower Rhône Valley, France

On November 11, 2019, a Mw 4.9 earthquake hit the region close to Montelimar (lower Rhône Valley, France), on the eastern margin of the Massif Central close to the external part of the Alps. Occuring in a moderate seismicity area, this earthquake is remarkable for its very shallow focal depth (between 1 and 3 km), its magnitude, and the moderate to large damages it produced in several villages. InSAR interferograms indicated a shallow rupture about 4 km long reaching the surface and the reactivation of the ancient NE-SW La Rouviere normal fault in reverse faulting in agreement with the present-day E-W compressional tectonics. The peculiarity of this earthquake together with a poor coverage of the epicentral region by permanent seismological and geodetic stations triggered the mobilisation of the French post-seismic unit and the broad French scientific community from various institutions, with the deployment of geophysical instruments (seismological and geodesic stations), geological field surveys, and field evaluation of the intensity of the earthquake. Within 7 days after the mainshock, 47 seismological stations were deployed in the epicentral area to improve the Le Teil aftershocks locations relative to the French permanent seismological network (RESIF), monitor the temporal and spatial evolution of microearthquakes close to the fault plane and temporal evolution of the seismic response of 3 damaged historical buildings, and to study suspected site effects and their influence in the distribution of seismic damage. This seismological dataset, completed by data owned by different institutions, was integrated in a homogeneous archive and distributed through FDSN web services by the RESIF data center. This dataset, together with observations of surface rupture evidences, geologic, geodetic and satellite data, will help to unravel the causes and rupture mechanism of this earthquake, and contribute to account in seismic hazard assessment for earthquakes along the major regional Cévenne fault system in a context of present-day compressional tectonics

Altimetry for the future: Building on 25 years of progress

In 2018 we celebrated 25 years of development of radar altimetry, and the progress achieved by this methodology in the fields of global and coastal oceanography, hydrology, geodesy and cryospheric sciences. Many symbolic major events have celebrated these developments, e.g., in Venice, Italy, the 15th (2006) and 20th (2012) years of progress and more recently, in 2018, in Ponta Delgada, Portugal, 25 Years of Progress in Radar Altimetry. On this latter occasion it was decided to collect contributions of scientists, engineers and managers involved in the worldwide altimetry community to depict the state of altimetry and propose recommendations for the altimetry of the future. This paper summarizes contributions and recommendations that were collected and provides guidance for future mission design, research activities, and sustainable operational radar altimetry data exploitation. Recommendations provided are fundamental for optimizing further scientific and operational advances of oceanographic observations by altimetry, including requirements for spatial and temporal resolution of altimetric measurements, their accuracy and continuity. There are also new challenges and new openings mentioned in the paper that are particularly crucial for observations at higher latitudes, for coastal oceanography, for cryospheric studies and for hydrology. The paper starts with a general introduction followed by a section on Earth System Science including Ocean Dynamics, Sea Level, the Coastal Ocean, Hydrology, the Cryosphere and Polar Oceans and the ‘‘Green” Ocean, extending the frontier from biogeochemistry to marine ecology. Applications are described in a subsequent section, which covers Operational Oceanography, Weather, Hurricane Wave and Wind Forecasting, Climate projection. Instruments’ development and satellite missions’ evolutions are described in a fourth section. A fifth section covers the key observations that altimeters provide and their potential complements, from other Earth observation measurements to in situ data. Section 6 identifies the data and methods and provides some accuracy and resolution requirements for the wet tropospheric correction, the orbit and other geodetic requirements, the Mean Sea Surface, Geoid and Mean Dynamic Topography, Calibration and Validation, data accuracy, data access and handling (including the DUACS system). Section 7 brings a transversal view on scales, integration, artificial intelligence, and capacity building (education and training). Section 8 reviews the programmatic issues followed by a conclusion

Altimetry for the future: building on 25 years of progress

In 2018 we celebrated 25 years of development of radar altimetry, and the progress achieved by this methodology in the fields of global and coastal oceanography, hydrology, geodesy and cryospheric sciences. Many symbolic major events have celebrated these developments, e.g., in Venice, Italy, the 15th (2006) and 20th (2012) years of progress and more recently, in 2018, in Ponta Delgada, Portugal, 25 Years of Progress in Radar Altimetry. On this latter occasion it was decided to collect contributions of scientists, engineers and managers involved in the worldwide altimetry community to depict the state of altimetry and propose recommendations for the altimetry of the future. This paper summarizes contributions and recommendations that were collected and provides guidance for future mission design, research activities, and sustainable operational radar altimetry data exploitation. Recommendations provided are fundamental for optimizing further scientific and operational advances of oceanographic observations by altimetry, including requirements for spatial and temporal resolution of altimetric measurements, their accuracy and continuity. There are also new challenges and new openings mentioned in the paper that are particularly crucial for observations at higher latitudes, for coastal oceanography, for cryospheric studies and for hydrology. The paper starts with a general introduction followed by a section on Earth System Science including Ocean Dynamics, Sea Level, the Coastal Ocean, Hydrology, the Cryosphere and Polar Oceans and the “Green” Ocean, extending the frontier from biogeochemistry to marine ecology. Applications are described in a subsequent section, which covers Operational Oceanography, Weather, Hurricane Wave and Wind Forecasting, Climate projection. Instruments’ development and satellite missions’ evolutions are described in a fourth section. A fifth section covers the key observations that altimeters provide and their potential complements, from other Earth observation measurements to in situ data. Section 6 identifies the data and methods and provides some accuracy and resolution requirements for the wet tropospheric correction, the orbit and other geodetic requirements, the Mean Sea Surface, Geoid and Mean Dynamic Topography, Calibration and Validation, data accuracy, data access and handling (including the DUACS system). Section 7 brings a transversal view on scales, integration, artificial intelligence, and capacity building (education and training). Section 8 reviews the programmatic issues followed by a conclusion

Cooling equine embryo for 24h prior to vitrification: What are the consequences on its viability?

International audienc

Analyse des facteurs cliniques, histologiques et moléculaires impliqués dans la récidive des cancers colorectaux de stade II

Introduction : L'évaluation des facteurs de risque de rcécidive chez des patients suivis pour un cancer colorectal de stade II (CCR) est capitale pour identifier les patients qui pourraient être traités par chimiothérapie adjuvante. Bien que certains de ces facteurs soient bien identifiés (perforation, stade T, nombre de ganglions analysés, faible degré de différenciation), de nombreuses études s'intéressent à trouver d'autres facteurs prédictifs, encore plus fiables. But : Etudier des facteurs de récidive cliniques, histologiques et moléculaires dans une série de patients pris en charge pour un CCR de stade II. Matériel et Méthodes : Nous avons recueilli rétrospectivement les données cliniques, histologiques de 100 patients pris en charge dans deux centres d'oncologie digestive à Nantes (CHU de Nantes et Institut de Cancérologie de l'Ouest, René Gauducheau) entre le 1er août 2001 et le 21 décembre 2009 (suivi minimal de 3 ans). Les blocs tumoraux ont été désarchivés afin d'analyser, prospectivement le statut des microsatellites et la mutation du gène BRAF. Résultats : Parmi les 100 patients étudiés (âge médian 70,5 ans {23-96} dont 61 hommes), 18 (18%) ont récidivé pendant la période de suivie. Aucun facteur prédictif histologique ou moléculaire de récidive n'a été identifié, mais la localisation tumorale droite était associée avec une diminution significative de la SSR à 3 ans (p=0,048). De plus, la présence d'une anémie ou d'un syndrome rectal révélateur était associée avec une tendance à l'amélioration de la SSR à 3 ans (p= 0,061 et p= 0,052 respectivement). Il n'a pas été identifié d'association entre risque de récidive et l'âge, le sexe, la présence d'une perforation ou occlusion révélatrice, du degré de différenciation, de la présence de VELIPI. Conclusion : Les patients pris en charge pour un CCR de stade II ont une meilleure SSR à 3 ans lorsque la localisation tumorale est colique droite.NANTES-BU Médecine pharmacie (441092101) / SudocSudocFranceF

Insémination artificielle équine

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Quelle est la place des professionnels de santé dans l’adhésion aux programmes thérapeutiques en ligne de l’insomnie ? Éléments de réflexion issus de l’étude Sleep-4-All-1 et protocole de l’étude Sleep-4-All-2.0

La thérapie cognitivocomportementale de l’insomnie (TCC-I) demeure difficile d’accès pour les patients atteints de cancer. Sa digitalisation semble une solution prometteuse pour bénéficier au plus grand nombre. La faisabilité d’un programme TCC-I québécois a été démontrée en France, tout en révélant les limites d’un dispositif suivi en autonomie et à distance. L’enjeu reste de mieux comprendre le rôle des professionnels de santé dans l’accompagnement des patients dans ce type de programme. C’est l’objectif de l’étude Sleep-4-All-2.0 dont nous présenterons ici le protocole.Cognitive behavioral therapy for insomnia (CBTI) remains difficult to access for patients with cancer. Its digitalization seem like a promising solution to benefit as many people as possible. The feasibility of a Quebec CBTI program was thus demonstrated in France, while revealing the limits of a self-help remote program for patients with cancer. The challenge remains to better understand with the Sleep-4-All-2.0 protocol study the role of healthcare professionals in supporting patients in this type of program

Présentation et premiers résultats du programme 1000 génomes caprins : VarGoats

International audienc

Présentation et premiers résultats du programme 1000 génomes caprins : VarGoats

International audienc