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  • Electronic Resource  (4)
  • 2005-2009  (2)
  • 1980-1984  (2)
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  • Electronic Resource  (4)
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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Clinical and experimental dermatology 30 (2005), S. 0 
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 7 (1980), S. 0 
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Difference in the amounts of H-2K.5 antigens present on erythrocytes was observed, using quantitative absorption method, among several B10 congenic strains. However, no such variation was seen on the lymphocytes and lung cells. The variability in the amount of this antigen on the erythrocyte surface was primarily dependent on the haplotype of the H-2K end in the B10 recombinant strains examined. This suggests that the regulator of H-2 expression on erythrocytes is in this region. Further genetic analysis confirmed that this regulation functions in the cis-position. Finally, the H-2K.5 antigenic activity was expressed on the reticulocytes of all strains tested, but appeared lower in the type 2 group indicating that the regulation begins early in erythropoietic differentiation and eventually results in a complete loss of detectable activity.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 326-328 (Dec. 2006), p. 39-42 
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: This paper demonstrates instantaneous phase-stepping and subsequent phase analysismethods for interferometry and two-dimensional photoelasticity. The camera that has a pixelatedform-birefringent micro-retarder array acquires phase-stepped fringes in a single camera frame.Then, the distributions of Stokes parameters that represent the state of polarization are calculatedfrom a single image. In the case of the polarization interferometer, the phase difference of the twoorthogonally polarized light beam can be easily determined from the Stokes parameters. On theother hand, the phase distributions of the isochromatics and the isoclinics are obtained in the case ofthe photoelasticity. It is emphasized that this method is applicable to real-time inspection of opticalelements as well as the study of the mechanics of time-dependent materials because multipleexposures are unnecessary for sufficient data acquisition in the completion of data analysis
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1459
    Keywords: Adrenoleukodystrophy ; Fatty acid ; Hydrocarbon ; n-alkane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Im Gewebe eines Patienten mit Adrenoleukodystrophie wurde die Zusammensetzung der Fette untersucht. Die Cholesterolester sowohl von Gehirn wie auch von Nebennierengewebe enthielten einen höheren Anteil an Fettsäuren einer Kettenlänge von über C 22. Dies stimmt mit früheren Berichten überein. In der vorliegenden Untersuchung konnte in der Dünnschichtchromatographie der Neutralfettfraktion aus der weißen Substanz des Gehirnes und aus der Nebenniere ein Anteil nachgewiesen werden, der mittels Gaschromatographie und gaschromatographischen Massenspektrometrie als Wasserkohlenstoff des n-alkanes (CnH2n+2, n=16−33) identifiziert wurde. Es dürfte eine Beziehung zwischen der Zunahme des Wasserkohlenstoffes und den Veränderungen im Fettstoffwechsel bei der Adrenoleukodystrophie stehen. Die in abnormer Menge in der weißen Substanz des Gehirnes und in der Nebenniere anfallenden Fettsäuren entsprechen in der Länge der Ketten (C 24–C 26) den Haupt-Peaks des n-alkanes in den entsprechenden Geweben. Im weiteren war gerade in jenen Geweben eine abnorme Ansammlung von n-alkanen nachweisbar, in welchen Cholesterolester mit sehr langen Fettsäureketten stark vermehrt waren.
    Notes: Summary The lipid composition of tissues from a patient with adrenoleukodystrophy was examined. Cholesterol esters of both brain and adrenal tissues contained increased proportions of fatty acids longer than C22 in agreement with previous reports. During this study, thin-layer chromatographic analysis of the neutral lipid fraction from the cerebral white matter and the adrenal gland revealed an unknown spot, which was identified as hydrocarbon of n-alkanes (CnH2n+2, n=16–33) by means of gas-liquid chromatography and gas chromatography/mass spectrometry. There may be a relationship between the accumulation of hydrocarbons and the change in fatty acid metabolism that is the fundamental disorder of ALD, as: (1) the fatty acids abnormally accumulated in cerebral white matter and adrenal gland coincided in chain length (i.e. C24–C26) with the main peaks of n-alkane in the same tissues, and (2) an abnormal accumulation of n-alkanes occurred in the diseased tissues where cholesterol esters with very long chain fatty acids were markedly increased.
    Type of Medium: Electronic Resource
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