19 research outputs found

    Fonction publique française : l'éloignement du système de la carrière

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    Microvascular cutaneous coverage in wounds that expose the Achilles tendon: case report

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    Achilles tendon rupture, being one of the main tendon ruptures present, surgery being the most favourable option even taking into account complications such as infections and skin necrosis, it is necessary to develop techniques which help to reduce complications and increase benefits. The methods follow-up of 2 cases of patients with skin defects in the region of the Achilles tendon in patients who were treated at the "Luis Guillermo lbarra lbarra" national rehabilitation institute during the period 2020-2021 in the Traumatology service, treated with radial free flap forearm, using the description of the most used flaps in the literature. Results in both cases integrity of the free radial forearm flap in its entirety, functional recovery for walking, ability to put shoes back on, and without the need for reoperation, as well as a high level of satisfaction by patients. Conclusions if we are talking about an Achilles tendon rupture with a significant skin defect, the free radial forearm flap is an adequate option, if we are talking about a complete defect, the composite flap is the best option, remember that the decision on what type of flap will be used will depend on of the size of the lesion

    Hydrodynamic numerical simulations of a prototypical oxide-metal corium melt representative of fukushima 1-F1 severe accident conditions

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    International audienceIn the frame of Severe Accident studies, the VULCANO-facility at PLINIUS-platform (CEA - Cadarache) is devoted to the understanding of the interaction of corium with a concrete containment pit (Molten Corium Concrete Interaction-MCCI) [1]. The VULCANO VF-U1 experiment was designed to be closer as possible of the MCCI conditions possibly occurring in the Fukushima F1 reactor considering the coexistence of two dispersed phases (metallic liquid droplets and gaseous bubbles) in a continuous phase (oxide melt liquid).A MCCI industrial code was used to perform predictive calculation of the VF-U1 experiment, being closer as possible of Fukushima 1-F1 MCCI conditions. The results shown that the axial ablation is 8 times higher than the radial one. Then, a multiplicative factor of 8 for the axial heat exchange coefficient must be applied to find the final cavity shape. VULCANO VF-U1 Post-Test Analyses have shown that the metallic phase is preferably close to the vertical concrete walls and at the bottom of the test section whereas a stratification due to density difference between the oxide and the metallic phase is expected (as modeling by the MCCI code). Regarding to the real coupling physical effects in the integral the VULCANO-ICB test and the difficulties for the MCCI code to reproduce experimental behaviors, numerical simulations were conducted. For this purpose, a multiphase Volume Of Fluid (VOF) code at AMU (MADIREL) has been developed . In these calculations, the corium has been modelled numerically under isothermal conditions as a two-dimensional dispersed medium with multiple metal drops and gas bubbles. The results showed a possible hydrodynamic re-localization matching to experimental results

    Molten Core Concrete Interaction Test in VULCANO Facility Preventing Initial Interfacial Crusts

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    International audienceIn the frame of the Severe Accident Facilities for European Safety Targets (SAFEST) project,Karlsruhe Institute of Technology (KIT) and the Society for installation and Reactor Safety (GRS)have proposed to realize a Molten Corium Concrete Interaction (MCCI) test in the VULCANO facilitylocated at the PLINIUS experimental platform, CEA Cadarache. The MCCI test, named VBES-U5,was carried out on July 20th, 2017. 50kg of thermite has reacted to melt a prototypic corium in asiliceous concrete test section, which was then heated by induction. The test section was 2Dcylindrical with an inner diameter of 250 mm, an outer diameter of 500 mm, an inner height of 300mm and outer height of 475 mm. MCCI was carried out for 40 min which conducted to an axialablation of 10 mm and a radial ablation of 60 mm. Great care has been taken to prevent initial crustformation (corium composition such that initial contact temperature is above solidus, high powerduring the first minutes). Nevertheless, a pronounced radial ablation has been observed for thissiliceous concrete, similarly to previous VULCANO tests in which initial crust formation was likely tooccur

    X-ray and spectroscopic characterisation of novel mono- and trinuclear Fe(0) complexes derived from 1-dimethylhydrazono-4-phenylbuten-3-ones

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    The reaction between alpha,beta -unsaturated derivatives of monohydrazones of 1,2-dicarbonylic compounds (namely the 1-dimethylhydrazono-4-phenylbuten-3-ones (1a-c)) and di-iron nonacarbonyl affords the novel mono- and trinuclear Fe (0) complexes 2b-c and 3a-c, respectively, with a sigma -N and an eta (2)-coordination upon the C=C bond of the alpha,beta -unsaturated system for the former compounds, which actually generate six-membered metallocycles. With the latter complexes 3a-c, the main structural features are the unexpected presence of a dinuclear iron unit displaying at one end both the sigma -N and sigma -O coordination and at the other an eta (2)-coordination upon the C=N double bond giving rise to an unique organometallic arrangement in the heteroatom-containing moiety and, in addition, an eta (2)-coordination of another Fe(CO)(4) fragment upon the C=C bond of the alpha,beta -unsaturated system also results. The complexes were characterised by spectroscopic methods (IR, MS,H-1 and C-13 NMR) and their structures were confirmed by single-crystal X-ray analysis. (C) 2001 Elsevier Science B.V. All rights reserved

    Comparison between the Short Story Task and the Reading the Mind in the Eyes Test for evaluating Theory of Mind: A replication report

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    Introduction The ability to attribute emotional states, beliefs, and intentions to others has been termed Theory of Mind (ToM), mentalizing, and mind reading. The purpose of this study was to find an instrument to measure ToM in the Mexican population, that would yield similar results to those obtained in other cultures, and could discriminate between individuals. To achieve this objective, we replicated a study which compared two measures of ToM in a sample of English-speaking, neurologically intact adults. Methods A sample of young Mexican adults (n = 118) was evaluated on the Reading the Mind in the Eyes Test (RMET) and a test that uses naturalistic narrative stimuli, the Short Story Task (SST), and on tests of general cognitive ability, executive functions, and empathy. Results We found a significant correlation between the ToM tests, and both tests correlated with verbal ability, general cognitive ability, and empathy, similar to what was seen in a previous study. Both tests discriminated between individuals and were challenging enough that we found no perfect scores. Conclusions These results show that both the RMET, which taps into emotion recognition and its categorization with language, and the SST, which relies on narrative fiction to test the ability to interpret mental states, show concurrent validity in a sample of neurologically intact young adults from a Latin-American culture; these tests may be useful in the clinical setting and for basic research into ToM

    Towards an European consensus on possible causes of MCCI ablation anisotropy in an oxidic pool

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    International audienceOne of the most disputed issues raised by molten corium concrete interaction (MCCI) is how the 2D cavity ablation in an oxidic pool evolves why is the ablation anisotropic with siliceous concretes and isotropic with carbonaceous concretes. The work performed in the frame of the SARNET2 WP6 group during the last 4 years has enabled significant progress on this topic. This paper summarizes this progress using the analysis of recent 2D real material experiments in an oxidic pool and from analytical simulant experiments on 2D heat convection in a bubbling pool, including calculations and recalculations with MCCI codes available in Europe. Firstly, the effective heat transfer coefficients from the bulk pool to the bottom and lateral pool interfaces deduced from MCCI experiments lead to a range of a few 100 W/m2/K. By contrast, a detailed review of possible 2D convection mechanisms shows that the individual heat convection mechanisms (without taking a crust into account) such as gas bubbling convection and solutal convection overestimates the overall heat transfer coefficient, and does not account for the main trends of 2D ablation deduced from MCCI tests, which are very dependent on the composition of concrete components and aggregates. This fact, in turn, points to the effect of more complex pool/concrete interface structures. On the basis of a thorough interpretation of the experimental database and of a detailed comparison of MCCI code predictions, a set of the most realistic and consistent assumptions are identified and major remaining uncertainties are listed. © 2014 Elsevier Ltd
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