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  • 1995-1999  (4)
  • 1965-1969
  • 1925-1929
  • 1995  (4)
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  • 1995-1999  (4)
  • 1965-1969
  • 1925-1929
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  • 1
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 46-48 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We have studied the growth and the properties of BN films prepared by exclusive deposition of mass separated 11B+ and 14N+ ions. BN films grown with ion energies of 500 eV and at substrate temperatures of 350 °C show the IR absorption peak at 1080 cm−1, characteristic for c-BN. These films are nearly stoichiometric and, with transmission electron diffraction, the presence of c-BN nanocrystals was revealed. We compare the growth conditions for ion beam deposition on BN, CN, and diamondlike carbon and propose that the nucleation of nanocrystalline c-BN is related to the ionicity of the BN bond. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of oral rehabilitation 22 (1995), S. 0 
    ISSN: 1365-2842
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: summary An unusual case of lipoma arising in the floor of the mouth of a 70-year-old man is presented. The unusual appearance suggests that the tumour be included as a rare possibility in the differential diagnosis of swellings in the floor of the mouth that can also adversely affect lower denture stability.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International orthopaedics 19 (1995), S. 265-268 
    ISSN: 1432-5195
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Nous avons trouvé à l'analyse de la technique opératoire de l'arthroplastie du genou par la prothèse Whiteside Mark II que cette intervention consiste en une succession de 42 étapes distinctes. Certaines de ces étapes sont plus importantes que d'autres et jouent un rôle clé. Il n'existe pas dans la littérature de méthode permettant d'établir qu'une étape donnée d'une intervention joue un rôle clé dans cette intervention. Notre analyse a identifié quatre caractéristiques d'une étape clé: 1) l'opération ne peut être poursuivie sans cette étape; 2) la durée de l'étape clé est nettement plus longue que celle des autres étapes; 3) l'étape requiert des corrections nettement plus souvent que les autres étapes; et 4) ces corrections prennent nettement plus de temps que pour les autres étapes. Grâce à cette méthodologie rigoureuse, deux étapes ont montré les quatre caractéristiques requises et peuvent donc être appelées étapes clé. Ce sont le positionnement du guide de coupe fémorale et les coupes fémorales initiales. Nous croyons que cette méthodologie analytique peut s'appliquer à d'autres interventions chirurgicales afin de mieux comprendre le détail de leur complexité.
    Notes: Summary We have analyzed the operation of knee arthroplasty using the Whiteside Mark II prosthesis, and found that it could be broken down into 42 steps, some of which are more important than others and can be considered as critical. We have identified 4 criteria to evaluate a critical step: 1) it must be necessary to complete the procedure, 2) it must take a significantly longer time to perform than other steps, 3) it must be revised significantly more frequently than other steps and 4) it must take significantly longer to revise than other steps. Two steps have been found to which all 4 criteria applied, namely placement of the femoral cutting jig and the first femoral saw cuts.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 33 (1995), S. 289-293 
    ISSN: 1434-6079
    Keywords: 36.40 ; 34.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The electronic energy loss of a positively charged projectile passing through a sodium cluster is calculated by the semiclassical Vlasov method. The electron density before impact is obtained within the localdensity approximation in the jellium model. For the dynamical response, the Vlasov equations are solved by test particle discretization. The model gives the correct breathing mode and dipole Mie frequencies. The energy deposit is calculated as a function of projectile velocity, charge and impact parameter and is compared with theoretical and tabulated values for bulk sodium.
    Type of Medium: Electronic Resource
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