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  • 1
    Electronic Resource
    Electronic Resource
    Os odontoideum in identical twins: perspectives on etiology (1993)
    Springer
    Skeletal radiology 22 (1993), S. 525-527 
    Details
    ISSN: 1432-2161
    Keywords: Os odontoideum ; Atlas and axis, abnormalities ; Atlas and axis, fractures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Most authorities favor the hypothesis of an acquired etiology of os odontoideum. We present the cases of identical twin sisters with os odontoideum in association with a congenital partial fusion of the posterior elements of the second and third cervical vertebrae, and discuss the implications. We believe that this is the first report of familial os odontoideum in a context which suggests a genetic etiology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00209102
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Distribution ofK α L n satellite yields for mediumZ elements bombarded with16O ions (1989)
    Springer
    The European physical journal 14 (1989), S. 37-43 
    Details
    ISSN: 1434-6079
    Keywords: 34.50 ; 34.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract K α X-ray spectra were measured with a Du Mond type curves crystal spectrometer for42Mo and46Pd targets bombarded with oxygen ions at 5.5 MeV/u energy (i.e. at velocity closely matching those of the targetL-shell electrons). The distribution ofL-shell vacancies produced in collisions with simultaneousK-shell ionization is deduced from the measured yield distribution of theK α X-ray satellites. The distribution shows deviations from the binomial ones. The deviations can be accounted for by assuming that theL-shell vacancy production is due to two uncorrelated processes: the direct ionization by impact and the electron capture from theL-shell of the target atom into theK-shell of the projectile, both occurring at nearly central collisions. The corresponding probability values are deduced using simple statistical considerations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01401341
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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