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  • Alpha rhythm  (1)
  • Biomagnetism (including magnetocardiography)  (1)
  • Bone  (1)
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Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Retinotopic map on the visual cortex for eccentrically placed patterns: First noninvasive measurement (1983)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 410-419 
    Details
    ISSN: 0392-6737
    Keywords: Biomagnetism (including magnetocardiography) ; Superconducting devices ; superconducting magnets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Il campo magnetico corticale osservato, suscitato da uno stimolo presentato a varie eccentricità nel campo visivo, è stato interpretato come derivante da dipoli di corrente lungo la scissura longitudinale. La profondità della sorgente aumenta con l’aumento dell’eccentricità, in accordo con la classica mappatura retinotopica.
    Notes: Summary The observed cortical magnetic field evoked by a stimulus presented at various eccentricities in the visual field was interpreted as arising from current dipoles along the longitudinal fissure. The depth of the source increased as the eccentricity was increased, in agreement with the classical retinotopic map.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02455941
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Osteoporosis: diagnosis by plain chest film versus dual photon bone densitometry (1990)
    Springer
    Skeletal radiology 19 (1990), S. 27-30 
    Details
    ISSN: 1432-2161
    Keywords: Osteoporosis ; Single and dual photon bone densitometry ; Vertebra, density ; Bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Readers of chest radiographs often comment on the presence of osteoporosis. We have hypothesized that diagnoses of osteoporosis from chest films are not reliable even when made by experienced radiologists. To test this hypothesis, we had nine radiologists estimate the degree of bone density seen on 45 lateral chest films. We compared their estimates of bone density to the results of dual photon bone densitometry of the lumbar spine. We found that there was little ability to accurately diagnose osteoporosis by chest film since the group of nine readers achieved accuracies ranging from 0.59 to 0.64. Therefore, we feel it is unjustified to comment upon the presence or absence of osteoporosis on the basis of chest films.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00197924
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Evolution of neuromagnetic topographic mapping (1990)
    Springer
    Brain topography 3 (1990), S. 113-127 
    Details
    ISSN: 1573-6792
    Keywords: Alpha rhythm ; Current source-density ; Magnetic source imaging ; Mental imagery ; Neuromagnetism ; Somatically evoked response ; SQUID field sensors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Magnetoencephalography has developed during the past twenty years with a different overall emphasis than found in electroencephalography. These differences are explored in selected applications. One dominant feature of magnetic studies is a quantitative approach to characterize the strength of neuronal activity, as well as its position within the brain. There is evidence from recent analyses of current source-density measurements in animal models that the deduced peak neuronal strength can also be interpreted in terms of the spatial extent of activity across cortex.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01128868
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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