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  • 1985-1989  (4)
  • 79.70  (2)
  • 65.40.-f  (1)
  • Insulin receptor  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Thermodynamic studies of successive phase transitions in BaZnGeO4 and a new solid phase below 186.1 K (1989)
    Springer
    Applied physics 49 (1989), S. 91-94 
    Details
    ISSN: 1432-0630
    Keywords: 64.60.-i ; 64.70.Kb ; 65.40.-f
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The successive phase transitions of BaZnGeO4 have been studied on meltsolidified samples. A new solid phase (named phase VI) has been found below 186.1 K in samples of large particle size (diameter:D≳0.1 mm). The higher temperature crystalline phase V can be supercooled easily down to liquid helium temperature. On heating, however, it transforms into phase VI above 95 K in a slow exothermic process. Heat capacities have been measured by adiabatic calorimetry between 14 and 300 K. The enthalpy and entropy of the V–VI phase transition are 187.1 Jmol−1 and 0.971 J K−1 mol−1, respectively. The corresponding data for the IV–V phase transition at 199.8 K are 229.3 J mol−1 and 1.168 JK−1 mol−1. The phase VI does not appear in samples of smaller particle size (D≲0.1 mm).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00615470
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    5′-flanking DNA of the human insulin receptor gene and long terminal repeat of mouse mammary tumour virus bind to the same nuclear protein(s) (1989)
    Springer
    Diabetologia 32 (1989), S. 877-880 
    Details
    ISSN: 1432-0428
    Keywords: Insulin receptor ; glucocorticoid responsive element ; gel mobility shift analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The interaction of nuclear protein extracted from rat liver and 5′-flanking DNA of the human insulin receptor gene was investigated with the aid of gel mobility shift analysis. When 5′-flanking DNA (-1255/-1206 or -385/-345 base pairs) was incubated with nuclear protein, two or three 32P-DNA species (protein binding DNA fragment(s) and free DNA fragment) were detected. These bands did not disappear in spite of increasing amounts of synthetic poly(dI-dC), showing that nuclear protein binds specifically to 5′-flanking DNA of the insulin receptor gene. Increasing amounts of long terminal repeat of mouse mammary tumour virus resulted in a reciprocal decrease in nuclear protein binding to 5′-flanking DNA of insulin receptor gene. These results suggest that 5′-flanking DNA of insulin receptor gene binds to the same nuclear protein to which long terminal repeat of mouse mammary tumour binds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00297453
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Cluster cations ejected from liquid metal ion source: alkali metals (Li, Na) and group IV elements (Si, Ge, Sn, Pb) (1989)
    Springer
    The European physical journal 12 (1989), S. 225-227 
    Details
    ISSN: 1434-6079
    Keywords: 36.40 ; 79.70 ; 35.20.X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Cluster abundance of Li n + (n≤19), Na n + (n≤25), Si n z+ (n≤8 forz=1, 3≤n≤7 forz=2), Ge n z+ (n≤11 forz=1, 3≤n≤9 forz=2,n=4 forz=3), Sn n z+ (n≤7 forz=1, 3≤n≤9 forz=2,n=4 forz=3) and Pb n z+ (n≤6 forz=1, 5≤n≤7 forz=2) ejected from a liquid metal ion source has been investigated by mass spectrometry. The abundance spectra of alkali metal clusters showed distinct maxima and steps atn=3, 7, 9, 13 and 19 for Li, and atn=3, 5, 11, 13 and 19 for Na. Mass spectra of Si, Ge and Sn clusters were very similar each other, showing intensity drops aftern=4 and 6 (and alson=10 for Ge) for singly charged clusters. The magic numbers observed are discussed in terms of stability of charged clusters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01426943
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Abundance of Na cluster ions ejected from a liquid metal ion source (1989)
    Springer
    The European physical journal 11 (1989), S. 87-91 
    Details
    ISSN: 1434-6079
    Keywords: 36.40 ; 79.70 ; 35.20.X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Sodium cluster ions Na+ n withn ranging up to 25 have been observed from a liquid sodium ion source by using a magnetic mass analyzer. Ion intensity as a function of cluster size showed distinct steps and local maxima atn=3, 5, 11, 13 and 19 (magic numbers), and a pronounced odd-even alternation. The features in the ion abundance curve are attributed to the relative stability of cluster ions. The observed magic numbers are only partially explained by the electronic shell model, indicating need to include a consideration of atomic structure in a cluster.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01436588
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    Paper (German National Licenses)
    Fulltext
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