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  • 1
    Electronic Resource
    Electronic Resource
    Measurement of the area of the anterior horn of the right lateral ventricle for the diagnosis of brain atrophy by CT (1983)
    Springer
    Neuroradiology 25 (1983), S. 23-27 
    Details
    ISSN: 1432-1920
    Keywords: Computed tomography ; brain atrophy ; area of the anterior horn of the right lateral ventricle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The area of the anterior horn of the right lateral ventricle and five ventricular indices:(1) maximum width of the anterior horns, (2) minimum width of the anterior horns, (3) sum of these maximum and minimum widths, (4) ventricular index, and (5) cella media index were measured from the CT scans of 198 cases considered to be “normal”. The area of the right anterior horn and indices 1–4 were measured on the slice which most clearly showed Monro's foramina and index 5 was measured on the slice 2 cm above. The size of the ventricular system increased steadily with age. The sum of the maximum and minimum widths of the anterior horns was most highly correlated with the area of the right anterior horn. Using this ventricular index, we graded brain “atrophy” in each age group.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00327475
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Hyperfine interaction of light interstitial impurity nuclei in silicon (1983)
    Springer
    Hyperfine interactions 15 (1983), S. 539-542 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The spin-polarized electronic structure around the light impurity nuclei such as boron and positive muon at tetrahedral interstitial site of silicon is calculated by use of the local spin-density functional formalism and the LCAO-Green's function method. A paramagnetic solution is obtained, and hyper-deep impurity states below the valence band caused by the strong hybridization between the impurity orbitals and the tails of the surrounding host orbitals give large positive contribution to the hyperfine field. The Is core-polarization makes large negative contribution to the hyperfine field in the case of boron.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02159807
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Electronic structure of positive muon in silicon (1984)
    Springer
    Hyperfine interactions 18 (1984), S. 581-584 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The spin polarized electronic structure around a positive muonμ + at the tetrahedral interstitial site of silicon is calculated by use of the LCAO-Green's function method and the local spin density functional formalism. The bonding hyper deep impurity state below the valence band and the antibonding deep one in the gap caused by the strong sp hybridization in the majority spin band give the most large contribution to the hyperfine coupling constant ofμ +. The reduction of the hyperfine coupling constant,A, experienced byμ + at absolute zero is calculated to be 0.406 in satisfactory agreement with the experimental value of 0.405 ± 0.026 or 0.450 ± 0.020.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02064871
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    Paper (German National Licenses)
    Fulltext
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