130 research outputs found

    EMPATHIE ET MEDIATION: CRÉER UN COURS EN LIGNE

    Get PDF
    The DELCYME project offers a self-learning platform to improve knowledge and culture for young professionals who will carry out an internship in a country with one of the following target languages: German, French, Spanish, Italian or Polish. The course is personalized for each learner and the topics covered are linked to both daily and working life. The authors of the project aim to define activities adapted to each level, select or create course materials, propose a progression and create tasks, from simple to more complex levels. Lesson design and the final task involve several participants. In this article, we will explore how the creation process can be described and defined by the terms empathy and mediation.   Empatia e mediazione: creare un corso online Il progetto DELCYME offre una piattaforma di autoapprendimento per migliorare la conoscenza e la cultura di giovani professionisti che svolgeranno un tirocinio in un paese con una delle seguenti lingue target: tedesco, francese, spagnolo, italiano o polacco. Il corso è personalizzato per ogni studente e gli argomenti trattati sono legati sia alla vita quotidiana che a quella lavorativa. Gli autori del progetto mirano a definire attività adatte ad ogni livello, selezionare o creare materiali per il corso, proporre una progressione e creare compiti, dai livelli più semplici a quelli più complessi. La progettazione della lezione e il compito finale coinvolgono diversi partecipanti. In questo articolo esploreremo come il processo di creazione può essere descritto e definito con i termini empatia e mediazione

    The granite hosted gold deposit of Moulin de Chéni (Saint-Yrieix district, Massif Central, France): petrographic, structural, fluid inclusion and oxygen isotope constraints

    Get PDF
    The Moulin de Chéni orogenic gold deposit is the only granite-hosted deposit of the Saint-Yrieix district, French Massif Central. It occurs in 338±1.5Ma-old peraluminous leucogranites and is characterized by intense microfracturing and bleaching of the granite in relation to pervasive sulfide crystallization. Formation of quartz veins and gold deposition occurred in two successive stages: an early "mesozonal” stage of quartz-sulfide (Fe-As-S) deposition, usually devoid of gold and a late "epizonal” stage of base metal and gold deposition. Both stages postdate peak metamorphism and granite intrusion. The genesis of the deposit is the result of four successive fluid events: (1) Percolation of aqueous-carbonic metamorphic fluids under an assumed lithostatic regime of 400-450°C, at a maximum depth of 13km; (2) Formation of the main quartz lodes with coeval K-alteration and introduction of As and S from aqueous-carbonic fluids percolating along regional faults. Arsenopyrite and pyrite deposition was linked to the alteration of Fe-silicates into K-feldspar and phengite at near-constant iron content in the bulk granite. Temperature was similar to that of the preceding stage, but pressure decreased to 100-50MPa, suggesting rapid uplift of the basement up to 7.5km depth; (3) The resulting extensional tectonic leads to the deposition of gold, boulangerite, galena and sphalerite in brecciated arsenopyrite and pyrite from aqueous fluids during a mixing process. Temperature and salinity decrease from 280 to 140°C and 8.1wt% eq. NaCl to 1.6wt% eq. NaCl, respectively; (4) Sealing of the late fault system by barren comb quartz which precipitated from dilute meteoric aqueous fluids (1.6wt% eq. NaCl to 0.9wt% eq. NaCl) under hydrostatic conditions at 200-150°

    Reconstructing fluid-flow events in Lower-Triassic sandstones of the eastern Paris Basin by elemental tracing and isotopic dating of nanometric illite crystals

    No full text
    International audienceLower- to Middle-Triassic sandstones from eastern Paris Basin were buried to a maximum depth of 2500 m at a paleo-temperature of about 100 °C. They contain extensive amounts of authigenic platy and filamentous illite particles similar to those reported in reservoirs generally buried at 3000 to 5000 m and subjected to temperatures of 120 to 150 °C. To evaluate this unexpected occurrence, such sandstones were collected from drill cores between 1825 and 2000 m depth, and nanometric-sized sub-fractions were separated. The illite crystals were identified by XRD, observed by SEM and TEM, analyzed for their major, trace, rare-earth elements and oxygen isotope compositions, and dated by K-Ar and Rb-Sr.Illite particles display varied growth features in the rock pore space and on authigenic quartz and adularia that they postdate. TEM-EDS crystal-chemical in situ data show that the illite lath/fiber and platelet morphologies correspond at least to two populations with varied interlayer charges: between 0.7 and 0.9 in the former and between 0.8 and 1.0 in the latter, the Fe/Fe+Mg ratio being higher in the platelets. Except for the deeper conglomerate, the PAAS-normalized REE patterns of the illite crystals are bell-shaped, enriched in middle REEs. Ca-carbonates and Ca-phosphates were detected together with illite in the separates. These soluble components yield 87Sr/86Sr ratios that are not strictly in chemical equilibrium with the illite crystals, suggesting successive fluids flows with different chemical compositions. The K-Ar data of finer <0.05 μm illite separates confirm two crystallization events at 179.4 ± 4.5 and 149.4 ± 2.5 Ma during the Early and Late Jurassic. The slightly coarser fractions contain also earlier crystallized or detrital K-bearing minerals characterized by lower δ18O values. The δ18O of the finest authigenic illite separates tends to decrease slightly with depth, from 18.2 (± 0.2) to 16.3 (± 0.2) ‰, suggesting different but contemporaneous crystallization conditions deeper in the section.The illite platelets and filaments crystallized in changing physical-chemical crystallization conditions induced by fluids flows through the host-rock pore system. These flow events were probably driven by repetitive rifting episodes of the North Atlantic Ocean, although located several hundreds kilometers away from eastern Paris Basin, and/or by fracturing events in the nearby basement of the Vosges Massif. Complex relationships between geodynamical events, thermal anomalies, and advective fluids confirm that remote tectonic activities can impact quiescent basins, even if located far from tectono-thermal activities, by discrete and long-distance fluid flows

    Evolution of porewater composition through time in limestone aquifers: Salinity and D/H of fluid inclusion water in authigenic minerals (Jurassic of the eastern Paris basin, France)

    No full text
    International audiencePast water circulations can significantly reduce the porosity and permeability of marine limestones. This is particularly the case in the Middle (Bathonian/Bajocian) to Upper (Oxfordian) Jurassic limestones from the eastern border of the Paris Basin. The knowledge of the timing, the temperature and composition of paleowaters is essential to model the hydrological evolution in this area where the Callovian–Oxfordian claystones are studied for the storage of nuclear wastes. In this way, fluid inclusions hosted in low-temperature (< 60°C) authigenic calcite, quartz and celestite crystals were analyzed by Raman spectroscopy and mass spectrometry to determine the chlorinity and D/H ratios. Chlorinity measurements (mmol Cl per liter of water) in fluid inclusions trapped in authigenic crystals during the late Jurassic/early Cretaceous period revealed unexpected high values, up to 3800 mmol l− 1, indicating that brines were involved in some of the diagenetic crystallization processes. By contrast, fluid inclusions in calcite cements of Cenozoic age within the Oxfordian limestones have low Cl concentration (less than 150 mmol l− 1), thus showing that a dilution event caused by water infiltrations during the Cretaceous uplift of this part of the basin has flushed out the original saline porewater. By coupling δD of fluid inclusion with δ18O of calcite crystals, we estimate that calcite precipitation occurred at temperatures between 25 and 53°C. The hydrogen isotope composition of calcite-forming water is different between the Middle Jurassic (δD ranging from − 20 to − 35.8‰V-SMOW) and the overlying Oxfordian limestone (δD from − 59.5 to − 44.8‰V-SMOW). Present-day groundwaters are also of distinct composition on both sides of the Oxfordian claystones, indicating that limestone aquifers underwent independent hydrologic evolutions since the early diagenetic Jurassic cementation

    Impact of basin burial and exhumation on Jurassic carbonates diagenesis on both sides of a thick clay barrier (Paris Basin, NE France).

    No full text
    27 pagesInternational audienceSeveral diagenetic models have been proposed for Middle and Upper Jurassic carbonates of the eastern Paris Basin. The paragenetic sequences are compared in both aquifers to propose a diagenetic model for the Middle and Late Jurassic deposits as a whole. Petrographic (optical and cathodoluminescence microscopy), structural (fracture orientations) and geochemical (δ18O, δ13C, REE) studies were conducted to characterize diagenetic cements, with a focus on blocky calcite cements, and their connection with fracturation events. Four generations of blocky calcite (Cal1-Cal4) are identified. Cal1 and Cal2 are widespread in the dominantly grain-supported facies of the Middle Jurassic limestones (about 90% of the cementation), whereas they are limited in the Oxfordian because grain-supported facies are restricted to certain stratigraphic levels. Cal1 and Cal2 blocky spars precipitated during burial in a reducing environment from mixed marine-meteoric waters and/or buffered meteoric waters. The meteoric waters probably entered aquifers during the Late Cimmerian (Jurassic/Cretaceous boundary) and Late Aptian (Early Cretaceous) unconformities. The amount of Cal2 cement is thought to be linked to the intensity of burial pressure dissolution, which in turn was partly controlled by the clay content of the host rocks. Cal3 and Cal4 are associated with telogenetic fracturing phases. The succession of Cal3 and Cal4 calcite relates to the transition towards oxidizing conditions during an opening of the system to meteoric waters at higher water/rock ratios. These meteoric fluids circulated along Pyrenean, Oligocene and Alpine fractures and generated both dissolution and subsequent cementation in Oxfordian vugs in mud-supported facies and in poorly stylolitized grainstones. However, these cements filled only the residual porosity in Middle Jurassic limestones. In addition to fluorine inputs, fracturation also permitted inputs of sulphur possibly due to weathering of Triassic or Purbeckian evaporites or H2S input during Paleogene times

    Innovación y formación

    No full text
    Resumen tomado de la publicaciónMás allá de palabras grandilocuentes, innovar supone aportar mejoras en una situación dada. Sin duda, el mundo educativo necesita adaptarse a un mundo en continua y rápida evolución en el que distintos tipos de circunstancias obligan a replantear el papel de profesores y alumnos en su práctica cotidiana. Se hace necesario identificar qué factores favorecen el éxito de prácticas docentes tanto por lo que concierne a los alumnos como a las dinámicas de gestión del centro o a las metodologías didácticas. Igualmente es conveniente dar a conocer aquellos hallazgos que puedan favorecer la mejor formación del alumnado.MadridMadrid (Comunidad Autónoma). Servicio de Formación del Profesorado. CRIF Las Acacias; Calle General Ricardos, 179; 28025 Madrid; Tel. +34915250893; Fax +34914660991; [email protected]

    Qualité de vie à long terme après autogreffe de cellules souches hématopoïétiques

    No full text
    BORDEAUX2-BU Santé (330632101) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

    Identification des motivations et freins à la promotion du don du sang en médecine générale

    No full text
    L'objectif de notre étude était d'identifier les motivations et freins à la promotion du don de sang (DDS) en médecine générale, de déterminer si les médecins généralistes (MG) se sentaient prêts à être acteurs pour promouvoir cet acte solidaire, et de recueillir l'avis d'un échantillon de patients pour savoir s'ils seraient réceptifs à une information donnée par leur médecin traitant. Notre étude descriptive menée entre le 5/09 et le 15/12/11, comportait un questionnaire envoyé par email, via l'ordre des médecins de Gironde, à 1591 médecins généralistes installés et thésés, et un second, distribué à une patientèle d'un cabinet de médecine générale situé à Caudéran. A travers cette étude, il ressort que 86 % des patients et des MG sont concernés par le sujet et que plus de 70 % pensent que le MG a un rôle direct dans la promotion du DDS et la sensibilisation des patients. MG et patients souhaitent être informés sur les DDS, les lieux de collecte et 90 % seraient favorables à des plaquettes d'informations dans les salles d'attente. 57 % des médecins aimeraient avoir une formation dans le cadre de la formation médicale continue, 68 % pourraient y consacrer du temps dans la consultation. Si le MG adhère à l'idée de promouvoir le sujet, investi d'une mission de santé publique pour renforcer la prise de conscience individuelle, le manque de temps dans la consultation et les nombreuses sollicitations dont il est l'objet constituent des freins majeurs. Concernant les patients, près de 60 % seraient plus réceptifs si le MG abordait le sujet en consultation et pensent que leur comportement aurait changé s'ils avaient été sensibilisés dès le plus jeune âge par leur MG. Devant les besoins croissants en unités de sang, et la difficulté de trouver de nouveaux donneurs, promouvoir le DDS grâce à la formation et la sensibilisation des MG tôt dans leur cursus, mais aussi des autres professionnels de santé, en collaboration avec l'Etablissement français du sang, peut être une solution.BORDEAUX2-BU Santé (330632101) / SudocSudocFranceF
    corecore