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  • 1995-1999  (2)
  • 1990-1994  (1)
  • 74.62.Dh  (2)
  • L2/HNK-1 carbohydrate  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Determination of structural elements of the L2/HNK-1 carbohydrate epitope required for its function (1994)
    Springer
    Glycoconjugate journal 11 (1994), S. 345-352 
    Details
    ISSN: 1573-4986
    Keywords: L2/HNK-1 carbohydrate ; antibody recognition ; laminin binding ; neural migration and process outgrowth
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The L2/HNK-1 carbohydrate epitope has been shown to carry an unusual 3′-sulfoglucuronic acid linkedO-glycosidically through a neolactosyl-type back bone to a ceramide residue. Using monoclonal antibodies, the same or a closely related epitope has also been detectedN-glycosidically linked to glycoproteins, amongst them several neural cell adhesion molecules. We used synthetic glycolipids carrying sulfated or non-sulfated glucuronic acid attached to ceramide through glycans of different length to show that not only the sulfated glucuronic acid but also the neolactosyl-type backbone is essential for the recognition of the L2/HNK-1 carbohydrate by a monoclonal antibody, its binding to laminin and its role in neural cell migration and outgrowth of processes from neurons and astrocytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00731208
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Pressure effect on anomalous suppression ofT c around x=1/8 in La2−xBaxCuO4 and La1.8−xx Nd0.2BaxCuO4 (1996)
    Springer
    Journal of low temperature physics 105 (1996), S. 311-316 
    Details
    ISSN: 1573-7357
    Keywords: 74.72.Dn ; 74.62.Dh ; 74.62.Fj ; 74.62.−c
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In La2−xBaxCuO4 (LBCO) and La1.8−xNd0.2BaxCuO4 (LNBCO), the low-temperature structural change at T1 (=60–110K), resulting from tilt of the CuO6 octahedra, is easily suppressed at high pressures. However, the structural change of LNBCO (x=0.125) remains up to 2GPa though it jumps from T1(∼110K) to T* (∼60K), where the electric resistivity ϱ begins to upturn, at 0-1.5GPa. The upturn of ϱ is also suppressed at high pressures, and the superconducting critical temperature Tc is fully restored except in a very narrow x-range around x=0.125. The Tc for x ≈0.125 is appreciably lower at 2GPa than those for other Ba-contents.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00768404
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Electronic specific heat of La2−xSrxCu1−yMyO4(M=Ga, Zn): Impurity effects on a D-wave superconductor (1996)
    Springer
    Journal of low temperature physics 105 (1996), S. 521-526 
    Details
    ISSN: 1573-7357
    Keywords: 74.25.Bt ; 74.62.Dh ; 74.72.Dn
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The electronic specific heat Cel was studied in Ga- and Zn-doped La2−xSrxCuO4 (0.16≤x≤0.22) at T≤10K. Partial substitution of Ga or Zn for Cu suppresses Tc and revives the T-linear electronic specific heat, γT, markedly. The γ(y)/γn vs Tc/Tc0 relation for Zn-doped samples with x≥0.2 is in good agreement with the theoretical one for resonant impurity scattering in a d-wave superconductor, while those for Ga-doped samples and for Zn-doped samples with x ≤ 0.2 deviate slightly from the theoretical curve. The deviation will be discussed in relation to changes in the magnetic properties of 3d electrons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00768438
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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