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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 20 (1996), S. 83-86 
    ISSN: 1432-5195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé. Présentation d’une étude rétrospective de 19 cas de luxation sous-astragalienne traités au cours des 15 dernières années. L’âge moyen des patients dont la plupart sont des hommes (63%) est de 31 ans. Les luxations internes sont prédominantes (84%) et parmi elles 37% sont des luxations ouvertes. Des lésions ostéocartilagineuses associées sont très fréquentes atteignant 13 des 19 patients (68%). Le traitement a été chirurgical pour les lésions ouvertes et dans 2 cas de lésions fermées l’une à cause d’une impossibilité de réduction et l’autre pour traiter des lésions vasculaires associées. Nous avons revu 17 des 19 patients avec une évolution de 7,9 années. Les résultats sont bons dans 6 cas, médiocres dans 6 autres et mauvais dans 5. Toutes les luxations ouvertes ont eu des résultats mauvais ou médiocres. Quatre triples arthrodèses ont été nécessaires. Les facteurs de mauvais résultats sont les lésions ouvertes, les lésions osseuses associées et l’immobilisation prolongée.
    Notes: Summary. This is a retrospective study of 19 cases of subtalar dislocation treated in our Department during the last 15 years. The average age of the patients was 31, and the majority were male (63%). Medial dislocations predominated (84%) and 37% were open. Associated osteocartilaginous lesions were very frequent and affected 13 patients (68%). Surgery was required for all the open injuries and for 2 of the closed dislocations. Closed reduction was impossible in one, and another required surgery to treat an associated vascular injury. Seventeen of the 19 patients were reviewed after an average of 7.9 years. The results were good in 6, fair in another 6, and poor in the remaining 5. The results of all the open lesions was only fair or poor. Four patients needed a triple arthrodesis. Factors resulting in a poor result were open lesions, associated bone lesions, and prolonged immobilization.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 15 (2001), S. 245-249 
    ISSN: 1434-6079
    Keywords: PACS. 32.80.Pj Optical cooling of atoms; trapping – 42.50.Vk Mechanical effects of light on atoms, molecules, electrons, and ions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: We have developed and characterized a new method to produce a continuous beam of cold atoms from a standard vapour-cell magneto-optical trap (MOT). The experimental apparatus is very simple. Using a single laser beam it is possible to hollow out in the source MOT a direction of unbalanced radiation pressure along which cold atoms can be accelerated out of the trap. The transverse cooling process that takes place during the extraction reduces the beam divergence. The atomic beam is used to load a magneto-optical trap operating in an ultra-high vacuum environment. At a vapour pressure of 10-8mbar in the loading cell, we have produced a continuous flux of 7×107atoms/s at the recapture cell with a mean velocity of 14 m/s. A comparison of this method with a pulsed transfer scheme is presented.
    Type of Medium: Electronic Resource
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