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  • 1965-1969  (26)
  • 1
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 13 (1965), S. 138-144 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 17 (1968), S. 236-238 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 15 (1966), S. 126-131 
    ISSN: 0942-0940
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 213 (1967), S. 728-730 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We have found that, under anaerobic conditions, flavoquinones of general type I (scheme I) are rapidly and irreversibly bleached by visible light in the presence of phenylacetate anions. During this reaction a quantity of carbon dioxide stoichiometric with the flavin reduced is liberated, as ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 209 (1968), S. 380-408 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The paramagnetic relaxation in single crystals of CeCl3 · 7H2O has been studied by the dispersion-absorption method at temperatures between 1.1 and 4.2
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 190 (1966), S. 135-141 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The effect of the octahedral ligand field on the spin-orbit splitting factor of at 2g -electron in strongly bound complexes is considered including the screening by the ligands.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 217 (1968), S. 373-385 
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The differential magnetic susceptibility X=X′-iX″ of HoCl3, Ho(Y)Cl3, and Ho(La)Cl3 has been measured with a mutual inductance bridge with frequencies from 5.3 c/s to 5.12 kc/s at temperatures between 1.1 and 4.2 °K, and in constant magnetic fields up to 3 kOe. — In monoclinic HoCl3 a magnetic transition has been observed atT=2.15 °K (maximum of X″). No transition occurs for 0.5 and 5% Ho3+ in isomorphic YCl3. — The results for nominal concentrations of 1, 2, and 5% Ho3+ in hexagonal LaCl3 indicate, that there is a considerable precipitation of monoclinic HoCl3 during crystal growth. Relaxation measurements on Ho3+ in hexagonal sites are interpreted in terms of a phonon-bottleneck in the temperature region 1.1 °K≦T≦2.00K with a hot-phonon equilibration time of about 0.2 μs.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 345 (1968), S. 292-298 
    ISSN: 1432-2307
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei der makroskopischen Darstellung von Kalkablagerungen treten die calcifizierten Anteile der inneren elastischen Membran auch an den Milzarterien in Form von gepaarten schwarzen Kalkbändern oder ihren Fragmenten zutage. Diese stellen mineralisierte Ränder von Membranspalten dar und lassen daher die Form und Ausdehnung der Membranlücken an der Innenwand der Arterie makroskopisch erkennen. Die äußeren, sich ausbuchtenden Bögen der geschlängelten Milzarterien zeigen an ihrer inneren elastischen Membran ein stark ausgebildetes Spaltensystem und erweisen sich zugleich als ein bevorzugter Sitz der Membrancalcinose. Die stärkere Entwicklung des Spaltensystems der primären inneren elastischen Membran an den äußeren Bögen der Krümmer stellt offenbar die Folge einer hier stattfindenden Wanddehnung dar, die auch an der Verdünnung der Wand und an dem Auseinanderweichen der adventitiellen elastischen Geflechte erkennbar wird.
    Notes: Summary Calcific deposits have been demonstrated grossly in the internal elastic membrane of splenic arteries. They are seen on the margins of membrane gaps as pairs of continuous or interrupted black bands (“calcific bands”). When the calcification is pronounced, nearly the whole system of ramifying and communicating membrane gaps is discerned grossly on the inner surface of the arteries. On the inside of the convex segments of the tortuous splenic arteries the membrane gaps are more numerous and wider then on the inside of the concave segments. Consequently, the calcific deposits are commoner on the convex segments. The development of gaps in the internal elastic membrane on the convex segments is probably the result of distension by the greater hydraulic pressure on these parts of the tortuous artery. This also leads to thinning of the media and interruption of the elastic networks in the adventitia in these parts of the artery.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 4 (1966), S. 382-390 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Résumé A l'aide d'un pont à induction mutuelle suivantHartshorn (courant alternatif), on a mesuré la susceptibilité magnétique d'échantillons monocristallins et polycristallins de Dy2O3, (Dy, Y)2O3 1:1, Er2O3 et Yb2O3 dans le domaine des températures comprises entre 1,1 et 4,2°K et sous l'influence de champs magnétiques extérieurs allant jusqu'à 3,5 kOe. L'oxyde dilué à l'yttrium reste paramagnétique dans le domaine des températures considérées. Les oxydes concentrés Dy2O3, Er2O3 et Yb2O3 deviennent antiferromagnétique avec des températures de Néel de 1,20°K, 3,40°K et 2,3°K. Au point de transition, les oxydes de dysprosium et d'erbium présentent une relaxation de la magnétisation lors de la modification de la température du bain, les temps de relaxation étant de l'ordre de quelques minutes.
    Abstract: Abstract A mutual inductance bridge (Hartshorn bridge) was used to measure the magnetic susceptibility of single crystals and polycrystals of Dy2O3, 1:1 diluted (Dy, Y)2O3, Er2O3 and Yb2O3 in the temperature region between 1,1 and 4,2°K in external fields up to 3,5 kOe. In this temperature region the yttrium diluted oxide remains paramagnetic whereas the undiluted oxides Dy2O3, Er2O3 and Yb2O3 become antiferromagnetic with Néel temperatures of 1,20°K, 3,40°K and 2,3°K, respectively. At the transition temperature the oxides of dysprosium and erbium show a magnetization relaxation due to bath temperature change. Relaxation times up to several minutes have been observed.
    Notes: Zusammenfassung Die magnetische Suszeptibilität von Einkristallen und Polykristall-Proben von Dy2O3, (Dy, Y)2O3 1:1, Er2O3 und Yb2O3 wurde im Temperaturbereich von 1,1 bis 4,2°K und in äußeren Magnetfeldern bis 3,4 kOe mit einer Wechselstrom-Gegeninduktivitäts-Brücke nachHartshorn gemessen. Das mit Yttrium verdünnte Oxid bleibt im untersuchten Temperaturbereich paramagnetisch; die konzentrierten Oxide Dy2O3, Er2O3 und Yb2O3 werden antiferromagnetisch mit Néel-Temperaturen von 1,20°K, 3,40°K und 2,3°K. Am Umwandlungspunkt zeigen die Oxide von Dysprosium und Erbium eine Relaxation der Magnetisierung bei Änderung der Badtemperatur mit Relaxationszeiten der Größenordnung Minuten.
    Type of Medium: Electronic Resource
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