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  • 1985-1989  (2)
  • 1905-1909
  • 21.60.F  (1)
  • Transverse ligament  (1)
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Years
  • 1985-1989  (2)
  • 1905-1909
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Skeletal radiology 14 (1985), S. 111-116 
    ISSN: 1432-2161
    Keywords: Predens space ; Atlantoaxial motion ; Atlantodens interval ; Transverse ligament
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract “V” shaped widening of the predens space (PDS) in flexion can be a worrisome finding in trauma patients, possibly representing injury to the transverse ligament. These patients may also show widening of the C-1/C-2 interspinous distance. We think this appearance is usually due to increased flexion mobility at the atlantoaxial level with developmental elongation or laxity of the cranial end of the transverse ligament and/or the posterior ligamentous complex. Tearing of only the cranial end of the transverse ligament must be extremely rare, if it occurs at all; there is no reported proven case. Tearing of only posterior ligaments seems possible and should be evaluated clinically.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: 21.60.C ; 21.60.E ; 21.60.F
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In recent years, the method for unitarizing nonunitary Dyson boson realizations of shellmodel algebras has been both generalized and substantially simplified through the introduction of overtly group-theoretical methods. In this paper, these methods are applied to the boson-odd-particle realization of the algebra SO(2v+1) forv single-particle levels, adapted to the group chain SO(2v+ l)⊃SO(2v)⊃U(v), which Marshalek first derived by brute force summation of a Taylor expansion and later Okubo by a largely algebraic technique.
    Type of Medium: Electronic Resource
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