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  • 1
    Electronic Resource
    Electronic Resource
    Exclusion mapping of the X-linked dominant chondrodysplasia punctata/ichthyosis/cataract/short stature (Happle) syndrome: possible involvement of an unstable pre-mutation (1992)
    Springer
    Human genetics 〈Berlin〉 89 (1992), S. 659-665 
    Details
    ISSN: 1432-1203
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Homology with the mouse bare patches mutant suggests that the gene for the X-linked dominant chondrodysplasia punctata / ichthyosis / cataract / short stature syndrome (Happle syndrome) is located in the human Xq28 region. To test this hypothesis, we performed a linkage study in three families comprising a total of 12 informative meioses. Multiple recombinations appear to exclude the Xq28 region as the site of the gene. Surprisingly, multiple crossovers were also found with 26 other markers spread along the rest of the X chromosome. Two-point linkage analysis and analysis of recombination chromosomes seem to exclude the gene from the entire X chromosome. Three different mechanisms are discussed that could explain the apparent exclusion of an X-linked gene from the X chromosome by linkage analysis: (a) different mutations on the X chromosome disturbing X inactivation, (b) metabolic interference, i.e. allele incompatibility of an X-linked gene, and (c) an unstable pre-mutation that can become silent in males. We favour the last explanation, as it would account for the unexpected sex ratio (M∶F) of 1.2∶1 among surviving siblings, and for the striking clinical variability of the phenotype, including stepwise increases in disease expression in successive generations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221958
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  • 2
    Electronic Resource
    Electronic Resource
    Investigation of the stress-dependent magnetic easy axis in steel using magnetic Barkhausen noise (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 4242-4252 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Angular-dependent magnetic Barkhausen noise (MBN) measurements were performed on a pipeline steel sample for various values of applied uniaxial stress at three angles with respect to the sample's zero stress magnetic easy axis direction. It was observed that the response of the MBN signal to stress was dependent upon the direction of the stress with respect to the zero stress easy axis. The stress response of the MBN signal was greatest for (i) tensile stresses oriented perpendicular to the zero stress easy axis direction and (ii) compressive stresses applied parallel to the easy axis direction. The modification of the MBN signal under an applied stress was attributed primarily to a change in the 180° domain wall population in the material investigated. Results were described by a model that considered regions of locally correlated domain behavior, termed "interaction regions,'' that were typically the size of grains within the steel material. A basic result of the model was the stress required to modify the number of 180° domain walls within an interaction region. Theoretical calculations of these threshold stresses for a typical grain size were found to be in agreement with the range of applied stresses that was observed to modify the angular-dependent MBN signal obtained from the sample. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361878
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  • 3
    Electronic Resource
    Electronic Resource
    Soft Tissue Retention of Strontium-90 in the Beagle (1966)
    [s.l.] : Nature Publishing Group
    Nature 212 (1966), S. 703-704 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Strontium-90 was given to the dogs by means of a single intravenous injection in early adulthood (527 ±53 days) as described previously4. Whole body retentions were measured in vivo6 with a scintillation counter (8 in. x 4 in. Nal) and a multi-channel (400) analyser. Weighed fractions of the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/212703a0
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  • 4
    Electronic Resource
    Electronic Resource
    Correlation of magnetic Barkhausen noise with core loss in oriented 3% Si–Fe steel laminates (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 3156-3167 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The angular dependence of surface magnetic Barkhausen noise (MBN) with flux densities up to 1.7 T on eight different samples of oriented 3% Si–Fe steel laminate was investigated. On two of the samples encircle MBN measurements were performed. MBN energy values were obtained by integrating the square of the MBN voltage signal with respect to time. The angular variation of the MBN energy signal was modeled by considering anisotropic internal fields that moderate 180° domain wall motion and the local eddy current field interactions between spatially correlated Barkhausen events. The eddy current field interactions arising between 180° domain walls that lie along the sample's primary easy axis direction were represented by a parameter, α′. α′ had a cos θ angular dependence where θ is the angle of the applied sweep field with respect to the sample rolling direction. The angular averaged MBN energy signal, 〈Energy〉, was evaluated and compared with core losses measured using the standard Epstein technique at 1.5 T. Surface MBN measurements on samples with higher 〈Energy〉 demonstrated lower core loss. This was associated with a larger proportion of microscopic eddy currents generated parallel to the sample plane which were, therefore, uncoupled from macroscopic eddy currents generated by the bulk magnetization of the sample. Larger surface 〈Energy〉 signals were identified with a finer domain wall structure. For samples with a nonzero α′, the core loss was observed to decrease with increasing α′ magnitude. This was interpreted as a result of a reduction of microscopic eddy currents arising from an increase in interactions between simultaneously moving 180° domain walls. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361258
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  • 5
    Electronic Resource
    Electronic Resource
    Characterization of the magnetic easy axis in pipeline steel using magnetic Barkhausen noise (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 7983-7988 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The angular dependence of magnetic Barkhausen noise (MBN) on eight surfaces through the thickness of a 2% Mn steel pipeline sample was investigated. The MBN signal was analyzed by integrating the square of the MBN voltage signal with respect to the time axis. The resulting value, referred to as the MBN energy signal, was modeled by considering the irreversible motion of 180° domain walls, under the influence of an oriented magnetic field. An expression for the angular dependence of the MBN energy signal was derived and was given by energy=α cos2 θ+β, where α and β are the fitting parameters and θ is the angle between the maximum MBN signal and the applied sweep field. The α parameter was associated with the irreversible motion of 180° walls that contributed to the net macroscopic easy axis near the surface of the sample, while the β parameter was associated with the isotropic background MBN signal. The energy equation could be used to fit the data for all sweep field amplitudes in which the MBN spectrum was observed. A dependence of the α and β parameters on the applied sweep field amplitude was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356561
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  • 6
    Electronic Resource
    Electronic Resource
    Effect of tensile stress on the 3D reversible and irreversible differential magnetic susceptibilities (2001)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 89 (2001), S. 7251-7253 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetic hysteresis loops in three orthogonal directions are measured for a line pipe steel sample while the external magnetic field is applied in a direction perpendicular to the tensile stress direction. The total magnetization vector is calculated. This tends to the stress direction when tensile stress is applied. The reversible and irreversible differential magnetic susceptibilities are derived. It is found that the susceptibilities in all three directions are enhanced with increasing tensile stress, although the increase in the stress direction is much larger than in the other directions. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1355341
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of order of stress and field application on the measured flux density in 1% Mn pipeline steel (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 62 (1987), S. 2914-2917 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Experiments involving different orders of field and stress application on the measured flux density in 1% Mn pipeline steel samples were performed in order to examine the validity of LeChatelier's principle. In the low-field regions the flux density in the sample was found to be strongly dependent on the order of applied stress and field, as stated by Bozorth. The results obtained for stress-induced magnetization changes were in accordance with the Jiles–Atherton theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.339372
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  • 8
    Electronic Resource
    Electronic Resource
    Sweat production in children's feet (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 10 (1985), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The rate of sweating from the feet of children aged 4–14 yr was measured by collecting the sweat produced at rest into weighed socks.Although individual variation was great, sweat production per unit surface area remained fairly constant throughout childhood. Sweat production per foot, however, showed an increase with age and foot size, leveling off in early adolescence. These results that the rate of sweat production from each eccrine gland increases as the foot grows.The rate of sweating from the feet of childen aged 4-14yr was measures by collecting the sweat producer at rest into weighted socks.Although individual variation was great, sweat production per unit surface area remained fairly constant throughout childhood. Sweat production per foot, however, showed an increase with age and foot size, levelling off in early adolescence. These results suggest that the rate of sweat production from each eccrine gland increases as the foot grows.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1985.tb00562.x
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  • 9
    Electronic Resource
    Electronic Resource
    Razoxane (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Clinical and experimental dermatology 6 (1981), S. 0 
    Details
    ISSN: 1365-2230
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2230.1981.tb02371.x
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  • 10
    Electronic Resource
    Electronic Resource
    Practical and psychological problems for parents of children with epidermolysis bullosa (1986)
    Oxford, UK : Blackwell Publishing Ltd
    Child 12 (1986), S. 0 
    Details
    ISSN: 1365-2214
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Summary Parents of children with epidermolysis bullosa were sent a questionnaire seeking information on problems associated with the condition; 45% replied and their responses are discussed in terms of reported needs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2214.1986.tb00504.x
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