Download or read book L effet de la proth se totale du genou sur la cin matique 3D written by Gabriel Larose and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: La prothèse totale du genou (PTG) est une chirurgie couramment pratiquée pour traiter les patients souffrant d'arthrose sévère du genou. Bien que cette technique chirurgicale soit efficace pour diminuer la douleur, améliorer la fonction du genou et rentable d'un point de vue socio-économique, un pourcentage non négligeable de patients n'est pas satisfait suite à la chirurgie, principalement due à une douleur persistante ou due à une perception d'avoir une mauvaise fonction articulaire, sans cause identifiée. Cependant, l'impact de cette chirurgie sur la cinématique tridimensionnelle (3D) du genou demeure mal compris. Dans le but de mieux comprendre pourquoi certains patients ressentent toujours de la douleur suite à cette chirurgie, cette étude analysera, dans un premier temps, l'effet prospectif de la chirurgie sur la cinématique 3D du genou. Puis dans un second temps, comparera la cinématique 3D de sujet souffrant de douleur à celle de sujets asymptomatiques suite à la prothèse. Pour parvenir à ces deux objectifs, deux études distinctes ont été entreprises. Une première étude prospective a porté sur l'évolution de la cinématique 3D du genou d'un groupe de 19 sujets, recrutés sur la liste d'attente pour prothèse totale du genou de deux chirurgiens du CHUM, hôpital Notre-Dame, puis la cinématique a été comparée avec un groupe contrôle de 17 sujets avec des genoux sains. Une seconde étude a comparé la cinématique 3D de 20 sujets souffrant de douleur post-PTG avec 20 sujets avec des genoux asymptomatiques suite à leur chirurgie. La première étude a permis de montrer que la cinématique dans le plan frontal suite à la prothèse totale du genou était corrigée vers celle des sujets sains. Contrairement à celle mesurée dans les autres plans (sagittal et axial) qui, malgré de petites corrections, demeure différente de la cinématique des sujets sains. La seconde étude a permis d'identifier un marqueur biomécanique de la douleur chez les sujets souffrant de douleur post-PTG. Effectivement, contrairement aux sujets asymptomatiques, suite à leur chirurgie, les patients souffrants de douleur marchent avec une contracture en flexion plus importante tout au long de la phase d'appui. Les résultats de ces deux études tendent à montrer que la prothèse totale du genou modifie la cinématique 3D du genou, sans toutefois redevenir semblable à celle d'un genou normal. De plus, certains marqueurs biomécaniques peuvent être associés à de la douleur suite à la chirurgie. Une meilleure compréhension de l'impact de la PTG sur la cinématique 3D du genou permettra d'offrir de meilleurs traitements en préparation et après la chirurgie et pourrait mener à de nouveaux designs de prothèses.

Download or read book From Technological to Virtual Art written by Frank Popper and published by . This book was released on 2007 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frank Popper traces the development of immersive, interactive new media art from its antecedents through today's digital, multimedia, & networked art.

Download or read book Memory Evolutive Systems Hierarchy Emergence Cognition written by A C Ehresmann and published by Elsevier. This book was released on 2007-05-25 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Memory Evolutive Systems; Hierarchy, Emergence, Cognition provides comprehensive and comprehensible coverage of Memory Evolutive Systems (MEM). Written by the developers of the MEM, the book proposes a mathematical model for autonomous evolutionary systems based on the Category Theory of mathematics. It describes a framework to study and possibly simulate the structure of living systems and their dynamic behavior. This book contributes to understanding the multidisciplinary interfaces between mathematics, cognition, consciousness, biology and the study of complexity. It is organized into three parts. Part A deals with hierarchy and emergence and covers such topics as net of interactions and categories; the binding problem; and complexifications and emergence. Part B is about MEM while Part C discusses MEM applications to cognition and consciousness. The book explores the characteristics of a complex evolutionary system, its differences from inanimate physical systems, and its functioning and evolution in time, from its birth to its death. This book is an ideal reference for researchers, teachers and students in pure mathematics, computer science, cognitive science, study of complexity and systems theory, Category Theory, biological systems theory, and consciousness theory. It would also be of interest to both individuals and institutional libraries. Comprehensive and comprehensible coverage of Memory Evolutive System Written by the developers of the Memory Evolutive Systems Designed to explore the common language between sciences

Download or read book Tools for Thought written by Howard Rheingold and published by MIT Press. This book was released on 2000-04-13 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a highly engaging style, Rheingold tells the story of what he calls the patriarchs, pioneers, and infonauts of the computer, focusing in particular on such pioneers as J. C. R. Licklider, Doug Engelbart, Bob Taylor, and Alan Kay. The digital revolution did not begin with the teenage millionaires of Silicon Valley, claims Howard Rheingold, but with such early intellectual giants as Charles Babbage, George Boole, and John von Neumann. In a highly engaging style, Rheingold tells the story of what he calls the patriarchs, pioneers, and infonauts of the computer, focusing in particular on such pioneers as J. C. R. Licklider, Doug Engelbart, Bob Taylor, and Alan Kay. Taking the reader step by step from nineteenth-century mathematics to contemporary computing, he introduces a fascinating collection of eccentrics, mavericks, geniuses, and visionaries. The book was originally published in 1985, and Rheingold's attempt to envision computing in the 1990s turns out to have been remarkably prescient. This edition contains an afterword, in which Rheingold interviews some of the pioneers discussed in the book. As an exercise in what he calls "retrospective futurism," Rheingold also looks back at how he looked forward.

Download or read book Unconventional Computing 2007 written by Andrew Adamatzky and published by Luniver Press. This book was released on 2007 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconventional computing is the quest for groundbreaking new algorithms and computing architectures based on and inspired by the principles of information processing in physical, chemical and biological systems. The timely scientific contributions in this book include cutting-edge theoretical work on quantum and kinematic Turing machines, computational complexity of physical systems, molecular and chemical computation, processing incomplete information, physical hypercomputation, automata networks and swarms. They are nicely complemented by recent results on experimental implementations of logical and arithmetical circuits in a domino substrate, DNA computers, and self-assembly. The book supports interdisciplinary research in the field of future computing and contributes toward developing a common interface between computer science, biology, mathematics, chemistry, electronics engineering, and physics.