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  • 1990-1994  (1)
  • 1985-1989  (1)
  • 5B elements  (1)
  • Myelin sheath thickness  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Anatomy and embryology 178 (1988), S. 537-541 
    ISSN: 1432-0568
    Keywords: Myelin sheath thickness ; g Ratio ; Frog sciatic nerve ; Axon caliber
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Frog sciatic nerves show a continuing addition of new myelinated and nonmyelinated fibers with body growth. Along with increases in fiber number there are also marked changes in axon calibers and in the relative thickness of the myelin sheaths. Our data show that frog nerves, as opposed to mammalian nerves, are composed of fibers of different ages, stages of growth and stages of myelination.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0044-2313
    Keywords: Intermetallic phases (ternary) ; lithium ; 4A metals ; 5B elements ; preparation ; crystal structure ; X-ray ; neutron scattering ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Ternary Intermetallic Phases of Lithium, Transition Metals of the 4th Group and Elements of the 5th Maingroup with Statistical Metal Distribution in the „Cation“-SubstructureThe results of X-ray investigations and neutron diffraction on new and in some cases already known [1, 2] ternary intermetallic phases of Lithium with transition metals of the 4th group (b) and those of the 5th main group (X = P, As, Sb, Bi) will be reported. They crystallize in a partly „filled“ antifluorite type structure with a statistical Li/B-distribution in the tetrahedral sites. The structures are obviously stabilized by small amounts of enclosed d-elements.
    Notes: Es wird über Röntgenstrukturuntersuchungen und Neutronenbeugung an neuen und einigen schon bekannten [1, 2] ternären intermetallischen Phasen des Lithiums mit Elementen der 4. Nebengruppe (B) und Elementen der 5. Hauptgruppe (X = P, As, Sb, Bi) berichtet. Sie kristallisieren in einer teilweise „aufgefüllten“ Antifluorit-Struktur mit statistischer Li/B-Besetzung der Tetraederlücken, die offenbar durch den Einbau von geringen Mengen der Übergangsmetalle stabilisiert wird.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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