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  • 1
    Electronic Resource
    Electronic Resource
    Neural processing of human faces: a magnetoencephalographic study (1998)
    Springer
    Experimental brain research 118 (1998), S. 501-510 
    Details
    ISSN: 1432-1106
    Keywords: Key words Face processing ; Magnetoencephalography ; Evoked responses ; Human subjects
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  This is a whole head magnetoencephalographic (MEG) study of the neural processing of briefly presented images of human faces in 14 normal subjects. The experiments involved three tasks of increasing complexity, involving image categorisation, image comparison and the identification of emotion. The analyses were based on average responses to repeated stimuli in the different image categories. These averages were processed to give numerical measures of the power within defined regions and latency spans. The only statistically significant difference in these data between the response to faces and other images is in the right occipito-temporal channels at a latency of 140 ms. The face-specific response is largely independent of the task. Source modelling suggests an extended source in the ventral occipito-temporal region. The analysis supports the notions of both face-specificity and right hemisphere dominance for all image types at early latencies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002210050306
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    d.c. Magnetic fields of the human leg as a function of position and relaxation (1983)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 2 (1983), S. 650-659 
    Details
    ISSN: 0392-6737
    Keywords: Biomagnetism (including magnetocardiography) ; Superconducting devices ; superconducting magnets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Le ricerche sul campo magnetico intorno alla gamba umana con l’uso di un magnetometro SQUID producono risultati consistenti e riproducibili che possono essere rappresentati mediamente due linee di corrente, orientate inversamente, parallele all’asse della gamba. I campi sono condizionati dall’attività muscolare, che decade col tempo di rilassamento della gamba.
    Notes: Summary Investigations of the magnetic field around the human leg using a SQUID magnetometer yield consistent, reproducible results which can be modelled by 2 oppositely oriented line currents parallel to the leg axis. The fields are affected by muscle activity, decaying with the time of relaxation of the leg.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02455962
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    An efficient magnetic flux integration method for bounded current sources (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 4925-4927 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The magnetic flux threading a general pickup coil system is expressed as a power series expansion in which the source and detector dependencies are separated. Specific expressions are developed for the commonest coil system—a single circular coil. For a given configuration, the maximum error is simply related to the number of terms retained in the expansion. Actual computations show that, for a single circular coil, and for configurations typically encountered in biomagnetic studies, the power series expansion method is about 20 times faster than direct integration of the vector potential over the coil perimeter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338361
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Non-invasive monitoring of ionic current flow during development by SQUID magnetometry (1988)
    Springer
    Cellular and molecular life sciences 44 (1988), S. 673-678 
    Details
    ISSN: 1420-9071
    Keywords: SQUID ; magnetometry ; ionic current ; development ; chick
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ionic currents flowing in developing organisms produce weak magnetic fields that can be detected using SQUID magnetometers. The method is non-invasive and dc recording is possible. To date SQUID magnetometers have mainly been used in human studies. The features of the technique are described and the prospects of extending its use to developmental studies are discussed. Feasible instrumental specifications are indicated. A recent SQUID magnetometer investigation of ionic current flow in the developing chick in ovo is summarised as an illustration of the magnetometer method. The paper as a whole argues that magnetometry is a useful alternative or adjunct to electrode-based experiments on the electrophysiology of developing organisms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01941028
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Entropy and magnetization measurements relating to the nature of the adsorbed phases of helium-3 under pressure (1980)
    Springer
    Journal of low temperature physics 38 (1980), S. 475-496 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: NMR and compressional cooling experiments have been carried out in Vycor porous glass immersed in liquid 3He in a Pomeranchuk cell at various temperatures and pressures. The expected nucleation of a solid phase near the substrate at a few bar does not take place, but compressional cooling occurs at about 2/3 bar below the melting curve. Modification of a simple statistical layer model to take into account the two-dimensional nature of the second layer gives better agreement with the observations, but other considerations show that the phase is probably fluid. These experiments therefore show the existence of a previously undiscovered high-density (〉solid) disordered phase which is probably mobile. The NMR measurements show that the ferromagnetic interactions in the adsorbed 3He are larger than in bulk liquid, and increase with increasing pressure and decreasing temperature.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00114338
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    The flux growth of rare earth germanomolybdates and germanotungstates (1974)
    Springer
    Journal of materials science 9 (1974), S. 845-849 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The growth of R2GeMoO8 and R2GeWO8 crystals from the flux systems R2O3-GeO2-MO3-PbO, where M = Mo or W, is described. A preliminary investigation of their magnetic properties is reported. The X-ray powder pattern data for R2GeWO8 with R = Gd, Tb, Dy, Ho and Er are given.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00761805
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    Paper (German National Licenses)
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