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Academic literature on the topic 'Atlas fonctionnel'
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Journal articles on the topic "Atlas fonctionnel"
Delestre, M., A. David, and E. Frampas. "Atlas des anomalies anatomiques de la dyschésie." Côlon & Rectum 13, no. 4 (November 2019): 180–87. http://dx.doi.org/10.3166/cer-2019-0111.
Full textBaiwir, Esther. "Ce que contiennent (et ce que ne contiennent pas) les cartes géolinguistiques : un regard depuis la Galloromania." Travaux de linguistique 87, no. 2 (January 10, 2024): 97–110. http://dx.doi.org/10.3917/tl.087.0097.
Full textFermigier, Alice, Marc Dhenain, and Clément M. Garin. "Étude comparative des réseaux cérébraux en IRM fonctionnelle au repos chez l’humain, le microcèbe et la souris." Bulletin de l'Académie Vétérinaire de France 177 (2024). http://dx.doi.org/10.3406/bavf.2024.71070.
Full textBICHAIN, Jean-Michel, Xavier CUCHERAT, Hervé BRULÉ, Thibaut DURR, Jean GUHRING, Gérard HOMMAY, Julien RYELANDT, and Kevin UMBRECHT. "Liste de référence fonctionnelle et annotée des Mollusques continentaux (Mollusca: Gastropoda & Bivalvia) du Grand-Est (France)." Naturae, no. 11 (December 19, 2019). http://dx.doi.org/10.5852/naturae2019a11.
Full textDissertations / Theses on the topic "Atlas fonctionnel"
Franz, Sébastien. "Réalisations instrumentales pour le contrôle fonctionnel de l'infrastructure et des détecteurs de l'expérience ATLAS." Chambéry, 2009. http://www.theses.fr/2009CHAMS032.
Full textThe European Organization for Nuclear Research or CERN, Geneva, is about to operate the Large Hadron Collider (LHC). This accelerator ring and its particles detectors have been built to try to answer to the actual questions given by the particle physics theories. One of these detectors, ATLAS, has been designed, for instance, to validate, or invalidate, the theories on the existence of the Higgs Boson. The operation of the detector and the quality of its data depend on the quality of the detection elements but it depends also strongly on the good monitoring of its environment. In this respect, the developments presented in this document are focused on the control of the infrastructure of the ATLAS detector and on the ALFA detector (Absolute Luminosity For ATLAS) which is designed to provide an absolute measurement of the luminosity of the LHC beam at the ATLAS interaction point. Two projects which are integrated in the Detector Control System (DCS) are presented in the first part of the document: FPIAA (Finding Persons Inside ATLAS Areas) has been developed as a tool for people safety in the experimental cavern during the maintenance periods of ATLAS. It consists in an application for people localization and an active tracking of people in the cavern. A second application has been developed to measure the level of ionizing radiations and the particles fluency in the detector during its operation. These data will be used to evaluate the aging of the elements of the detector in respect with the level of integrated radiations. The work done on the ALFA detector is focused on particle detection technologies and control applications. The photo detection devices which will be used have been evaluated, the hardware of the trigger counter have been studied and optimized. Finally, preliminary developments on the DCS of the ALFA detector will be presented. Software components have been implemented to configure remotely the front-end electronics of the detector and to perform automated calibrations. A high level communication scheme has also been implemented for data exchange between the ALFA DCS and the system which controls the movements of the detector on the LHC beam
Trebaul, Lena. "Développement d'outils de traitement du signal et statistiques pour l'analyse de groupe des réponses induites par des stimulations électriques corticales directes chez l'humain." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAS045/document.
Full textIntroduction: Low-frequency direct electrical stimulation is performed in drug-resistant epileptic patients, implanted with depth electrodes. It induces cortico-cortical evoked potentials (CCEP) that allow in vivo connectivity mapping of local networks. The multicentric project F-TRACT aims at gathering data of several hundred patients in a database to build a propabilistic functional tractography atlas that estimates connectivity at the cortex level.Methods: Semi-automatic processing pipelines have been developed to handle the amount of stereo-electroencephalography (SEEG) and imaging data and store them in a database. New signal processing and machine-learning methods have been developed and included in the pipelines, in order to automatically identify bad channels and correct the stimulation artifact. Group analyses have been performed using CCEP features and time-frequency maps of the stimulation responses.Results: The new methods performance has been assessed on heterogeneous data, coming from different hospital center recording and stimulating using variable parameters. The atlas was generated from a sample of 173 patients, providing a connectivity probability value for 79% of the possible connections and estimating biophysical properties of fibers for 46% of them. The methodology was applied on patients who experienced auditory symptoms that allowed the identification of different networks involved in hallucination or illusion generation. Oscillatory group analysis showed that anatomy was driving the stimulation response pattern.Discussion: A methodology for CCEP study at the cerebral cortex scale is presented in this thesis. Heterogeneous data in terms of acquisition and stimulation parameters and spatially were used and handled. An increasing number of patients’ data will allow the maximization of the statistical power of the atlas in order to study causal cortico-cortical interactions
Vik, Torbjørn. "Non-gaussian statistical appearance models : Application to the creation of a probabilistic atlas of brain perfusion in medical imaging." Strasbourg 1, 2004. https://publication-theses.unistra.fr/public/theses_doctorat/2004/VIK_Torbjorn_2004.pdf.
Full textSingle Photon Emission Computer Tomography (SPECT) is a 3D functional imaging technique that yields information about the blood flow in the brain (also called brain perfusion). This imaging technique has found application in the diagnostics of head trauma, dementia, epilepsy and other brain pathologies. To this end, SPECT images are analyzed in order to find abnormal blood flow patterns. For localized abnormalities such as stroke, this characterization remains an accessible task, whereas for diffuse and variable abnormalities such as beginning dementia, near-drowning episodes and toxic substance exposure, characterization is difficult. It is therefore necessary to develop quantitative methods in which computer-aided statistical analysis can take advantage of information present in a database of normal subjects. This work deals with the construction and evaluation of a probabilistic atlas of brain perfusion in normal subjects as observed in SPECT images. The goals of such an atlas are twofold: (1) to describe perfusion patterns of the population represented by the atlas in a compact manner, and (2) to identify statistically significant differences between an individual brain perfusion pattern and the probabilistic atlas. The successful creation of a computerized, probabilistic atlas may have far-reaching impact on clinical applications where qualitative (visual) analysis of SPECT images is current practice. Three issues have been central in this work: the statistical models that actually describe brain perfusion, the image processing tools used to make brains "comparable" and the experimental evaluation of the atlas
Eckert, Catherine. "Caractérisation fonctionnelle de l'autolysine AtlA de Enterococcus faecalis et identification des facteurs modulant son activité enzymatique." Paris 6, 2007. http://www.theses.fr/2007PA066328.
Full textBarbe, William. "Recherche de résonances se désintégrant en paire de quarks top-antitop avec l'expérience ATLAS." Thesis, Université Clermont Auvergne (2017-2020), 2019. http://www.theses.fr/2019CLFAC032/document.
Full textThe Standard Model of particle physics describes three of the four fundamental interactions and all of its predictions have been experimentally confirmed. However, there are still questions that the Standard Model cannot answer. Several theoretical models are being explored and some predict new resonances that would decay into a top-antitop quarks pair that could be observed by the ATLAS detector at the LHC collider.In 2026, the LHC will restart after a significant improvement phase to increase its luminosity. It's in this context that the studies on FATALIC, a chip that has been proposed for the replacement of the front-end electronics of the ATLAS hadronic tile calorimeter, were achieved. The studies showed that FATALIC was able to reconstruct the parameters of an analog signal using three gain channels and a dynamic gain switch. The simulations showed that the expected performance of FATALIC's fast channel was within the required specifications.Then, a search for new particles decaying into a top-antitop quarks pair was presented, using 36.1 fb-1 data from the proton-proton collisions at 13 TeV of the LHC for the years 2015 and 2016. This search concentrate on the semi-leptonic decay channel of the top-antitop quarks pair, where the final state has a signature with exactly one lepton, hadronic jets and missing transverse energy. The estimate of the multi-jets background noise was presented. A search in the top-antitop invariant mass spectrum was performed in the two topology resolved and boosted and the compatibility of the data with respect to the Standard Model predictions was tested. No significant deviation from the Standard Model's predictions was found and limits on benchmark models signal cross sections were set.The difficulties encountered in estimating the background noises and on the profiling of the systematic uncertainties for the 36.1 fb-1 analysis has motivated the search for a new method to perform the global background estimate. The Functional Decomposition (FD) algorithm is a new method to search for new particles in an invariant mass spectrum, separating the contribution of the background noise to those of the resonant contributions. FD has been tested to verify its performance on pseudo-data from the top-antitop and « 4t BSM » analyses. First, tests were conducted to check if FD was creating spurious signal. The first version suffered of this problem and FD was then improved to reduce the amount of spurious signal. Finally, signal injection studies were carried out and FD showed difficulties to model the signal's contribution and to separate it from the background noise for signal with widths greater than 3%
Corouge, Isabelle. "Modelisation statistique de formes en imagerie cerebrale." Phd thesis, Université Rennes 1, 2003. http://tel.archives-ouvertes.fr/tel-00003647.
Full textcerebrale.
Dans une premiere partie, nous proposons un modele statistique de la forme des sillons corticaux. Le modele est bati par apprentissage a partir de sillons extraits d'images IRM et dotes d'une representation parametrique. La definition d'un repere intrinseque a la forme sillon permet d'aligner l'ensemble des formes extraites et de construire une population d'apprentissage coherente sur laquelle appliquer une analyse en composantes principales afin de deriver le modele. Ce modele statistique est ensuite etendu a un graphe de sillons afin de decrire non plus seulement les caracteristiques morphologiques d'un sillon, mais aussi les relations de position et d'orientation entre sillons principaux.
L'analyse presentee ici porte sur un sous-graphe defini par un couple de sillons.
Dans une seconde partie, trois applications de la modelisation proposee sont envisagees. D'une part, nous l'utilisons dans un cadre d'evaluation de methodes de recalage global inter-sujets. Pratiquee sur des amers locaux, l'analyse statistique fournit un indicateur de la similarite des formes au sein des populations recalees, et produit un critere de comparaison entre les methodes. D'autre part, nous exploitons la connaissance statistique apportee par le modele sur les sillons dans le contexte de la construction d'atlas anatomiques et fonctionnels. Nous proposons une methode locale et non-lineaire de recalage inter-sujets de donnees fonctionnelles, exprimees sous forme de dipoles MEG (localisations d'activations fonctionnelles), base sur la modelisation des amers anatomiques que sont les sillons corticaux. Exprimentee sur une population de 18 sujets, cette methode s'est averee apte a reduire la variabilite fonctionnelle inter-individuelle observee. Enfin, nous appliquons la methodologie proposee dans le cas des sillons a la modelisation statistique de la forme de frontieres fonctionnelles delimitant des aires visuelles de bas-niveau.
Books on the topic "Atlas fonctionnel"
R, Wheater Paul, Young Barbara PhD, and Heath, John W., Ph. D., eds. Histologie fonctionnelle Wheater. 3rd ed. Paris: Arnette, 1993.
Find full textT, Jahn Warren, and White Mark E, eds. Photographic manual of regional orthopaedic and neurological tests. 3rd ed. Baltimore: Williams & Wilkins, 1997.
Find full textJ, Cipriano Joseph, ed. Photographic manual of regional orthopaedic and neurological tests. 2nd ed. Baltimore, Md., USA: Williams & Wilkins, 1991.
Find full textPhotographic manual of regional orthopaedic and neurological tests. 4th ed. Philadelphia: Lippincott Williams & Wilkins, 2003.
Find full textYOUNG. Atlas d'histologie fonctionnelle. DE BOECK SUP, 2015.
Find full textHendelman, Walter J. Atlas de neuroanatomie fonctionnelle: Première édition française. University of Ottawa Press, 2013.
Find full textAtlas de neuroanatomie fonctionnelle: Première édition française. University of Ottawa Press, 2013.
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