Analyse de la compétitivité des destinations neige : une approche par les méthodes multicritères et les profils de clientèle

International audienceL'objectif de cet article est de présenter une modalité d'évaluation de la compétitivité des destinations neige qui tienne compte de différents profils de clientèle (Fondus de ski alpin ; ski en famille ; sensations fortes et free-ride ; amateurs de ski de fond et de raquettes). La méthode employée est la méthode multicritère de surclassement ELECTRE III. Cette méthode classe toutes les destinations étudiées de la meilleure à la moins désirable, à partir des préférences de la clientèle révélées à travers ses divers paramètres et notamment les poids des critères. Les destinations étudiées sont des stations classées dans la revue Montagne Leader ; elles se répartissent sur les différents massifs français (Alpes, Massif central, Jura, Vosges et Pyrénées)

Large calcite and bulk-rock volume loss in metacarbonate xenoliths from the Quérigut massif (French Pyrenees)

Chemical mass transfer was quantified in a metacarbonate xenolith enclosed within the granodiorite of the Quérigut massif (Pyrenees, France). Mass balance calculations suggest a strong decrease of CaO, SrO and CO2 contents (up to −90%), correlated with a decrease of modal calcite content as the contact is approached. Most other chemical elements behave immobile during metasomatism. They are therefore passively enriched. Only a small increase of SiO2, Al2O3 and Fe2O3 contents occurs in the immediate vicinity of the contact. Hence, in this study, skarn formation is characterized by the lack of large chemical element influx from the granitoid protolith. A large decrease of the initial carbonate volume (up to −86%) resulted from a combination of decarbonation reactions and loss of CaO and CO2. The resulting volume change has potentially important consequences for the interpretation of stable isotope profiles: the isotope alteration could have occured over greater distances than those observed toda

Radiological profile of anemia on unenhanced MDCT of the thorax

Our aim was to investigate the diagnostic value of unenhanced MDCT in anemic patients. Fifty consecutive patients with proven anemia and 50 nonanemic matched group for age, sex and body mass index were evaluated. In either group, hemoglobin levels were assessed no more than 24h from an unenhanced CT of the thorax. For each patient, the presence of a hyperattenuating aortic wall (aortic ring sign) and/or dense interventricular septum (subjective parameters) were identified by two radiologists who were blinded to the laboratory findings. Furthermore, the aortic CT attenuation values (objective parameter) were also obtained and correlated with the hemoglobin levels. The sensitivity and specificity in detecting anemia were calculated for each variable, and ROC analysis was generated for subjective and objective parameters. Subjective image analysis revealed that the aortic ring sign was more sensitive than the interventricular septum sign for anemia detection (84% vs. 72%), whereas this latter sign was more specific (100% vs. 92%). A good correlation (r = 0.60) was observed between the aortic CT attenuation values and the hemoglobin levels in the whole study population. Using a threshold of ≤35HU for anemia diagnosis, the sensitivity and specificity of aortic CT attenuation value were 84% and 94%, respectively, with the largest area under the curve (0.89) among all diagnostic criteria. However, the best trade-off between sensitivity (80%) and specificity (100%) was obtained from combining both subjective and objective analysis. Interpreting anemia upon unnenhanced MDCT of the thorax is quite feasible. A diagnostic approach that considers both subjective and objective analysis offers the best trade-off between sensitivity and specificit

Bayesian inversion of a chloride profile obtained in the hydraulically undisturbed Opalinus Clay: mass transport and paleo-hydrological implications.

International audienceThe BDB-1 deep inclined borehole was drilled at the Mont Terri rock laboratory (Switzerland) and enabled to acquire elevant data on porewater composition through the Opalinus Clay (OPA) and its bounding formations. Petrophysical measurements were carried out and included water content, water accessible porosity and grain density determination. Conservative anion profiles were obtained by aqueous leaching and out diffusion experiments performed on drillcore samples, and revealed to be consistent with previous studies carried out at the rock laboratory level. Diffusive properties were also investigated using three experimental setups: cubic out diffusion, radial diffusion and through diffusion. These transport parameters were used as a priori values in a Bayesian inversion using a Markov Chain Monte Carlo method to interpret the chloride profile in the Opalinus Clay. Based on a Peclet number analysis using the transport parameters formerly acquired, a purely diffusive scenario enabled specifying the paleohydrogeological evolution of the Mont Terri site from the folding and thrusting of the Jura Mountains to present time and transport parameters

Avaliação da informação documentada (norma ISO 9001:2015): Biotérios convencionais na Venezuela

To assure the quality of work with laboratory animals, it is essential to standardize their breeding and maintenance processes. The ISO 9001:2015 standard meets the requirements that certify the Quality Management Systems of an organization. The work focuses primarily on the establishment and evaluation of documented information of the processes referred to in requirement 7.5 of ISO 9001: 2015; this regulatory requirement is part of a management system that focuses on customer satisfaction with respect to meeting their needs. A descriptive and exploratory research was conducted. An instrument (survey) was designed where information was collected on the use of documentation in production and experimental processes. 22 conventional bioterias registered in the Asociación Venezolana para la Ciencia de Animales de Laboratorio (avecal) were studied. The instrument was sent via email to the Heads of each one of the Bioterias. Data were collected and tabulated according to the variables investigated. It was evidenced that 81.8% of these bioterias do not have documents that allow a control and monitoring of their processes. Likewise, those responsible are unaware of the national legal framework, such as the Ley Orgánica del Sistema Venezolano para la Calidad, Normas Generales de Control Interno de la Contraloría General de la República and the ISO 9001:2015. The design of a methodological guide is recommended, so that national bioterias prepare their documents following clause 7.5 of the ISO 9001: 2015 standard to improve the efficiency of their processes.Para asegurar la calidad de los trabajos con animales de laboratorio, es fundamental estandarizar sus procesos de cría y mantenimiento. La norma ISO 9001:2015 reúne los requisitos que certifican los Sistemas de Gestión de Calidad de una organización. El trabajo se enfoca primordialmente en el establecimiento y evaluación de información documentada de los procesos a los que se hace referencia en el requisito 7.5 de la ISO 9001:2015. Este requisito normativo hace parte de un sistema de gestión que se enfoca en la satisfacción del cliente con respecto a cumplimiento de sus necesidades. La presente investigación. Se realizó una investigación descriptiva y exploratoria. Se diseñó un instrumento (encuesta) donde se recabó información sobre el uso de la documentación en los procesos productivos y experimentales. Se estudiaron 22 bioterios convencionales, registrados en la Asociación Venezolana para la Ciencia de Animales de Laboratorio (avecal). El instrumento se envió vía correo electrónico a los Jefes de Bioterio. Se recogieron y tabularon los datos en función de las variables investigadas. Se evidenció que el 81,8% de estos bioterios no cuenta con documentos que permitan realizar control y seguimiento de sus procesos. Igualmente, los responsables desconocen del marco jurídico nacional, como la Ley Orgánica del Sistema Venezolano para la Calidad, las Normas Generales de Control Interno de la Contraloría General de República y la Norma ISO 9001:2015. Se recomienda el diseño de una guía metodológica, para que los bioterios nacionales elaboren sus documentos siguiendo la cláusula 7.5 de la norma ISO 9001:2015 con el fin de mejorar la eficiencia de sus procesos.Para garantir a qualidade do trabalho com animais de laboratório, é fundamental padronizar seus processos de criação e manutenção. A norma ISO 9001:2015 atende aos requisitos que certificam os Sistemas de Gestão da Qualidade de uma organização. O trabalho se concentra principalmente no estabelecimento e avaliação de informações documentadas dos processos referidos no requisito 7.5 da ISO 9001:2015. Este requisito regulatório faz parte de um sistema de gestão que tem como foco a satisfação do cliente no que diz respeito ao atendimento de suas necessidades. A presente investigação. Realizou-se uma investigação descritiva e exploratória. Foi elaborado um instrumento (survey) para coletar informações sobre o uso da documentação em processos produtivos e experimentais. Vinte e dois biotérios convencionais registrados na Associação Venezuelana de Ciência de Animais de Laboratório (AVECAL) foram estudados. O instrumento foi enviado por e-mail aos responsáveis ​​pelo Biotério. Os dados foram coletados e tabulados com base nas variáveis ​​investigadas. Evidenciou-se que 81,8% desses biotérios não possuem documentos que permitam o controle e acompanhamento de seus processos. Da mesma forma, os responsáveis ​​desconhecem o marco legal nacional, como a Lei Orgânica do Sistema de Qualidade Venezuelano, as Normas Gerais de Controle Interno da Controladoria Geral da República e a Norma ISO 9001:2015. Recomenda-se a elaboração de um guia metodológico, para que os biotérios nacionais elaborem seus documentos seguindo a cláusula 7.5 da norma ISO 9001:2015, a fim de melhorar a eficiência de seus processos

Petit guide de l'accompagnement à la conception collective d'une transition agroécologique à l'échelle du territoire

Le guide méthodologique, à destination des animateurs de terrain est divisé en trois parties. La première est un dictionnaire imagé des concepts clefs des démarches participatives pour la transition agroécologique . La deuxième partie est une narration de l’expérience TATA-BOX, présentée « comme une recette de cuisine », avec son mode d’emploi étape par étape et un retour d’expérience des scientifiques et des participants des ateliers. Une démarche participative nécessite une construction pas à pas afin de s’adapter au contexte dans lequel elle s'inscrit, au jeu d'acteurs considéré, à la question posée. Aussi la troisième section du guide est composée de d’un ensemble de 23 fiches techniques permettant aux animateurs de terrain de : - suivre le cheminement logique pour la conception de leur propre dispositif - d’opter pour les méthodes et outils participatifs les plus adaptés en ayant un aperçu de leur conditions d’application, leur mode d’emploi, de leurs avantages et inconvénient

Video-Based Feedback for Assisting Physical Activity

In this paper, we explore the concept of providing feedback to a user moving in front of a depth camera so that he is able to replicate a specific template action. This can be used as a home based rehabilitation system for stroke survivors, where the objective is for patients to practice and improve their daily life activities. Patients are guided in how to correctly perform an action by following feedback proposals. These proposals are presented in a human interpretable way. In order to align an action that was performed with the template action, we explore two different approaches, namely, Subsequence Dynamic Time Warping and Temporal Commonality Discovery. The first method aims to find the temporal alignment and the second one discovers the interval of the subsequence that shares similar content, after which standard Dynamic Time Warping can be used for the temporal alignment. Then, feedback proposals can be provided in order to correct the user with respect to the template action. Experimental results show that both methods have similar accuracy rate and the computational time is a decisive factor, where Subsequence Dynamic Time Warping achieves faster results

Visual and human-interpretable feedback for assisting physical activity

Physical activity is essential for stroke survivors for recovering some autonomy in daily life activities. Post-stroke patients are initially subject to physical therapy under the supervision of a health professional, but due to economical aspects, home based rehabilitation is eventually suggested. In order to support the physical activity of stroke patients at home, this paper presents a system for guiding the user in how to properly perform certain actions and movements. This is achieved by presenting feedback in form of visual information and human-interpretable messages. The core of the proposed approach is the analysis of the motion required for aligning body-parts with respect to a template skeleton pose, and how this information can be presented to the user in form of simple recommendations. Experimental results in three datasets show the potential of the proposed framework

Image analysis of immediate full-arch prosthetic rehabilitations guided by a digital workflow: assessment of the discrepancy between planning and execution

Background A dentition with adequate function and esthetics is essential for the well-being and quality of life. A full implant-retained fixed prosthetics is an ideal solution for fully edentulous arch, however requires complex planning, surgical, and prosthetic procedure. With the help of digital workflow, it becomes a predictable and fast solution for the dentists and the patients. This retrospective study analyzed the most advanced surgical approach in full-arch rehabilitation with dental implants and immediate loading using digital workflow. Methods Patient records of fully edentulous jaws treated in four clinical centers in Warsaw, Poland, were evaluated. Computer-assisted planning and surgical template fabrication were done using the planning software coDiagnostiX™, based on a pre-op cone beam computed tomography (CBCT) and scanned data of a plaster model. A post-op CBCT was acquired after the placement of four to six implants by the guided system. The influence of different surgical variables on the discrepancy between planning and execution was analyzed, together with the biomechanical indices. Results A total of nine patient records were selected of 12 edentulous jaws treated with 62 implants. The overall mean three-dimensional (3D) offset at the implant base was 1.60 mm, at the tip 1.86 mm. The mean angle of deviation was 4.89°, the mean implant stability quotient (ISQ) 70.42, and the insertion torque 35.58 Ncm. The 3D offsets were influenced by the gender of the patient, treated jaw, the diameter, and length of the implant. The angle of deviation was affected only by the treated jaw. Insertion torque was influenced by the treated jaw, the age of the patient, the length of the implant, tooth type, and the side of the jaw. Discussion Bone quality of the patient and implant preparation procedure influenced the discrepancy between the planning and the execution of the digitally guided implant placement. Dense bone—mandible, posterior area, young age, and man—and multiple preparations of the implant bed—wider and longer implant—could be suggested as risk factors. Conclusion Digital workflow successfully enabled the immediate full-arch rehabilitation with a predictable outcome by different surgeons in multiple centers