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Electrocardiography --- His bundle --- Heart Conduction System --- ELECTROCARDIOGRAPHY
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Brugada syndrome --- Bundle-branch block --- Ventricular fibrillation
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Heart conduction system --- Bundle-branch block --- Heart conduction system --- Bundle-branch block
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Bundle of His --- Bundle-Branch Block --- Models, Cardiovascular --- Ventricular Function --- Hemodynamics --- Cardiac Pacing, Artificial --- physiopathology --- physiopathology --- physiology --- methods
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intensive care unit --- care bundle --- anesthesia --- echocardiography --- acute respiratory failure --- trauma --- Orthopaedics. Traumatology. Plastic surgery
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Bloc de branche du faisceau de His --- Bundle-branch-block --- 616.12-073.97
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Sunao Tawara's epoch-making work on the excitation conduction system of the mammalian heart paved the way for the advancement of modern cardiology in the 20th century. Even today, more than 90 years after the publication of the German monograph "Das Reizleitungssystem des Säugetierherzen", his precise account of the conduction system from the atrioventricular node through the His-Purkinje system to the ordinary ventricular muscle fibers retains all of its original actuality.This English edition of Tawara's monograph will serve as an invaluable reference for both basic and clinical cardiolog
His bundle. --- Heart conduction system. --- Cardiac conduction system --- Conducting system of the heart --- Conduction system of the heart --- Conductive system of the heart --- Connecting system of the heart --- Heart --- Atrioventricular bundle --- Bundle of His --- Fasciculus atrioventricularis --- Heart conduction system --- Conduction system
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This work offers a contribution in the geometric form of the theory of several complex variables. Since complex Grassmann manifolds serve as classifying spaces of complex vector bundles, the cohomology structure of a complex Grassmann manifold is of importance for the construction of Chern classes of complex vector bundles. The cohomology ring of a Grassmannian is therefore of interest in topology, differential geometry, algebraic geometry, and complex analysis. Wilhelm Stoll treats certain aspects of the complex analysis point of view.This work originated with questions in value distribution theory. Here analytic sets and differential forms rather than the corresponding homology and cohomology classes are considered. On the Grassmann manifold, the cohomology ring is isomorphic to the ring of differential forms invariant under the unitary group, and each cohomology class is determined by a family of analytic sets.
Algebraic geometry --- Differential geometry. Global analysis --- Grassmann manifolds --- Differential forms. --- Grassmann manifolds. --- Invariants. --- Geometry, Differential. --- Géométrie différentielle. --- Differential invariants. --- Invariants différentiels. --- Forms, Differential --- Continuous groups --- Geometry, Differential --- Grassmannians --- Differential topology --- Manifolds (Mathematics) --- Calculation. --- Cohomology ring. --- Cohomology. --- Complex space. --- Cotangent bundle. --- Diagram (category theory). --- Exterior algebra. --- Grassmannian. --- Holomorphic vector bundle. --- Manifold. --- Regular map (graph theory). --- Remainder. --- Representation theorem. --- Schubert variety. --- Sesquilinear form. --- Theorem. --- Vector bundle. --- Vector space. --- Géométrie différentielle. --- Invariants différentiels.
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The physics of porous media is, when taking a broad view, the physics of multinary mixtures of immiscible solid and fluid constituents. Its relevance to society echoes in numerous engineering disciplines such as chemical engineering, soil mechanics, petroleum engineering, groundwater engineering, geothermics, fuel cell technology… It is also at the core of many scientific disciplines ranging from hydrogeology to pulmonology. Perhaps one may affix a starting point for the study of porous media as the year 1794 when Reinhard Woltman introduced the concept of volume fractions when trying to understand mud. In 1856, Henry Darcy published his findings on the flow of water through sand packed columns and the first constitutive relation was born. Wyckoff and Botset proposed in 1936 a generalization of the Darcy approach to deal with several immiscible fluids flowing simultaneously in a rigid matrix. This effective medium theory assigns to each fluid a relative permeability, i.e. a constitutive law for each fluid species. It remains to this day the standard framework for handling the motion of two or more immiscible fluids in a rigid porous matrix even though there have been many attempts at moving beyond it. When the solid constituent is not rigid, forces in the fluids and the solid phase influence each other. von Terzaghi realized the importance of capillary forces in such systems in the thirties. An effective medium theory of poroelasticity was subsequently developend by Biot in the mid fifties. Biot theory remains to date state of the art for handling matrix-fluid interactions when the deformations of the solid phase remain small. For large deformations, e.g. when the solid phase is unconsolidated, no effective medium theory exists.
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Introduction : Les Pneumonies Acquises sous Ventilation Mécanique (PAVM) sont des infections ayant des conséquences en matière de santé publique. L’enregistrement de celles ci et de leurs soins de prévention est nécessaire afin d’analyser le phénomène sur la durée. La compliance du personnel aux soins de prévention est importante pour prévenir ces infections. Matériel et méthode : Une étude descriptive rétrospective a été réalisée au sein des unités de soins intensifs du CHU de Liège. Elle est répartie en trois phases. La première dure 6 semaines et permet de recueillir le nombre de PAVM. La seconde dure 3 semaines et permet d’informer les équipes de soins intensifs sur les soins de prévention à l’aide de plusieurs séances. La troisième dure 6 semaines et permet de recueillir le taux de compliance du personnel dans les soins de prévention des PAVM à l’aide de deux outils. Cette phase permet également de recueillir les taux d’enregistrements des PAVM et des soins de prévention s’y rapportant, ainsi que le nombre de PAVM avant et après les séances d’information. Résultats et conclusions : L’objectif principal est de s’assurer, pour la première fois au CHU, de la compliance infirmière dans les soins de prévention des PAVM en vérifiant si ce qui a été encodé correspond avec les soins réalisés. Le taux de compliance de l’autoévaluation infirmière recueilli à l’aide des deux outils est de 80,36% lors de la troisième phase, après les séances d’information. Le nombre de PAVM déclarées par les médecins de salle et confirmées par les médecins spécialisés représente 27% (3 confirmées sur les 11) des PAVM déclarées dans la première phase et 25% dans la troisième phase (1 confirmée sur les 4). Cependant, 33% (2 sur 6) du nombre total de PAVM de l’étude n’ont pas été déclarées et ont été retrouvées après analyse approfondie des dossiers des patients. Le nombre de PAVM est de 4,19/1000 jours de ventilation durant la première phase et de 3,62/1000 jours de ventilation dans la troisième phase (p-valeur = n.s.). Néanmoins, la comparaison entre la première phase et la troisième phase montre que les populations ont une tendance à ne pas être identiques en termes d’âge (p-valeur : 0,057), de sexe (p-valeur : 0,093) et sont statistiquement différentes en termes de proportion de grippe (p-valeur 0,021), on ne peut donc que supposer l’influence des séances d’information sur le nombre de PAVM. Introduction : Ventilator-Associated Pneumonia (VAP) are infections with consequences for public health. Registration of these and their preventive care is important to analyze the phenomenon over time. Staff compliance to preventive care is necessary to prevent these infections. Matérial and method : A retrospective descriptive study was realized in intensive care units of the University Hospital of Liège. It is divided into three phases. The first lasts 6 weeks and collects the number of VAPs. The second one lasts 3 weeks and informs the intensive care teams about preventive care with several information sessions. The third lasts 6 weeks and collects staff compliance rate in VAP prevention care using two tools. This phase is also used to collect VAP registration and preventive care rates, and the number of VAPs before and after the information sessions. Results and conclusions : The main objective is to ensure, for the first time, nurse compliance in VAP prevention care by verifying if what has been encoded matches what has been executed. The compliance rate of the nurse self-assessment collected using the two tools is 80.36% during the third phase, after the information sessions. The number of VAPs reported by care unit’s physicians and confirmed by specialist physicians represents 27% (3 confirmed on 11) of the VAPs reported in the first phase and 25% in the third phase (1 confirmed on 4). However, 33% (2 on 6) of the total number of VAPs in the study were not reported and were found after careful analysis of patient records. The number of VAPs is 4,19/1000 ventilation days during the first phase and 3,62/1000 ventilation days in the third phase (p-value = n.s.). Nevertheless, the comparison between the first phase and the third phase shows that populations have a tendency not to be identical in terms of age (p-value: 0.057), sex (p-value: 0.093) and are statistically different in terms of proportion of flu (p-value 0.021), we can therefore only suppose the influence of information sessions on the number of VAPs.
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