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  • 1
    Electronic Resource
    Electronic Resource
    Acceleration of femtosecond pulses to superluminal velocities by Gouy phase shift (1996)
    Springer
    Applied physics 63 (1996), S. 481-484 
    Details
    ISSN: 1432-0649
    Keywords: 42.10 ; 42.60.E
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The phase and the group velocities are calculated in a three-dimensional neighbourhood of the focus of an aberration-free lens illuminated by a spatially Gaussian beam. The Gouy phase shift caused by the diffraction results in superluminal pulse propagation on the optical axis within the Rayleigh range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01828944
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Light microscopic response of neuronal somata, dendrites and axons to post-mortem concussive head injury (1992)
    Springer
    Acta neuropathologica 83 (1992), S. 499-503 
    Details
    ISSN: 1432-0533
    Keywords: Post-mortem head injury ; Induced argyrophilia ; Neurons ; Dendrites ; Axons
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Forty anesthetized rats were cooled below 3°C by 30-min transcardial perfusion of chilled physiological saline before a concussive head injury. The animals were then perfusion-fixed with a buffered formaldehyde-glutaraldehyde solution. Another forty rats were fixed by 30-min transcardial perfusion of the same fixative before a similar concussive head injury. In brain sections of both groups of animals a new silver method stained, in a Golgi-like fashion, a number of neurons and long axonal segments scattered among unstained ones. The similarity between these findings and those obtained following in vivo concussive head injuries described in accompanying papers suggests that the formation of traumatically induced argyrophilic neuronal damage is independent of metabolic processes, i.e., it may be a primary morphopathological process.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00310026
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Preparative affinity membrane electrophoresis (1996)
    Weinheim : Wiley-Blackwell
    Electrophoresis 17 (1996), S. 224-226 
    Details
    ISSN: 0173-0835
    Keywords: Preparative affinity electrophoresis ; Gradiflow ; Dextran blue ; Serum proteins ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Using the patented Gradiflow system in conjunction with newly developed affinity membranes, the suitability of an electrokinetic technique for affinity fractionation was investigated. Blue dextran incorporated into an affinity membrane was used to deplete a solution of horse serum of albumin, with the result that a majority of serum proteins were enriched tenfold relative to albumin. The technique, when fully developed, would offer some advantages over affinity chromatography, since to a degree it is possible to control which components of the sample are presented to the affinity matrix. Furthermore, the technique would extend the capabilities of the already multifunctional Gradiflow system.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/elps.1150170138
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    Paper (German National Licenses)
    Fulltext
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