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  • 1
    Electronic Resource
    Electronic Resource
    III-defined focal low attenuation in the posterior internal capsule: a normal CT finding (1996)
    Springer
    Neuroradiology 38 (1996), S. 124-127 
    Details
    ISSN: 1432-1920
    Keywords: Brain anatomy ; Internal capsule ; Computed tomography ; Corticospinal tract
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Although many pathological changes in the internal capsule may lead to neurological deficits, we often encounter ill-defined focal low attenuation in the posterior limb of the internal capsule (PIC) on CT in patients with no neurological disturbance. Brain CT studies of 141 patients without neurological deficites were reviewed to investigate the position of the focal low attenuation by analysis of a profile density curve. Nine patients with lacunar infarcts only within the posterior internal capsule were also studied. The focal low attenuation areas were ill-defined and bilaterally symmetrical, without mass effect. They were seen consistently within the posterior limb of the posterior internal capsule. Correlation between the distribution of these foci and the position of lacunar infarcts in the posterior internal capsule in nine patients with neurological deficits suggests that they may be related to the corticospinal tract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00604795
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Ill-defined focal low attenuation in the posterior internal capsule: a normal CT finding (1996)
    Springer
    Neuroradiology 38 (1996), S. 124-127 
    Details
    ISSN: 1432-1920
    Keywords: Key words Brain anatomy ; Internal capsule ; Computed tomography ; Corticospinal tract
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Although many pathological changes in the internal capsule may lead to neurological deficits, we often encounter ill-defined focal low attenuation in the posterior limb of the internal capsule (PIC) on CT in patients with no neurological disturbance. Brain CT studies of 141 patients without neurological deficits were reviewed to investigate the position of the focal low attenuation by analysis of a profile density curve. Nine patients with lacunar infarcts only within the posterior internal capsule were also studied. The focal low attenuation areas were ill-defined and bilaterally symmetrical, without mass effect. They were seen consistently within the posterior limb of the posterior internal capsule. Correlation between the distribution of these foci and the position of lacunar infarcts in the posterior internal capsule in nine patients with neurological deficits suggests that they may be related to the corticospinal tract.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00604795
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Reversed-phase chromatgraphic separation of the rare earth elements (1990)
    Springer
    Chromatographia 29 (1990), S. 579-582 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Dynamic ion-exchange ; Rare earth elements ; Lactate complexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Chromatographic behaviour of the rare earth elements on C-18 bonded silica reversed-phase material has been investigated in aqueous lactate media. The lactatocomplexes of the rare earths are distributed and fractionated on the bonded silica column by a mobile phase gradient technique in the presence of hydrophobic ions. The effects of the lactate concentration pH, methanol and hydrophobic ion concentrations in the eluents have been investigated in detail to have the best resulution of the adjacent rare earth elements. Port-column reaction with arsenazo(III) is used to detect the separated rare earth lactatocomplexes. This reversed-phase partition system is suited to separate and detect all rare earth elements within 40 min with good reproducibility.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02261226
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Reversed-phase thin-layer chromatography of the rare earth elements (1988)
    Springer
    Chromatographia 25 (1988), S. 989-992 
    Details
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Reversed-phase chromatography ; Rare earth elements ; Bonded reversed-phase silica
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Partition chromatographic behaviour of the rare earth elements on C18 bonded silica reversed-phase material has been investigated by thin-layer chromatography in methanol — lactate media. The rare earth lactato complexes are distributed and fractionated on bonded silica layers without ion-interaction reagents. The concentration and pH of lactate solution, methanol concentration and temperature have effects on the migration and resolution of the rare earth elements. The partition system is particularly suited to separate adjacent rare earths of middle atomic weight groups, allowing the separation of gadolinium, terbium, dysprosium, holmium, erbium and thulium to be achieved by development to 18 cm distance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02259417
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
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