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  • Articles: DFG German National Licenses  (3)
  • Cell migration  (1)
  • Key words Aspergillosis  (1)
  • PACS:42.40.Pa; 42.70.Gi; 42.70.Ln  (1)
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  • Articles: DFG German National Licenses  (3)
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Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Phase gratings in the visible and near-infrared spectral range realized by metastable electronic states in $\rm Na_2[Fe(CN)_5NO] \cdot 2H_2O$ (1996)
    Springer
    Applied physics 63 (1996), S. 243-248 
    Details
    ISSN: 1432-0649
    Keywords: PACS:42.40.Pa; 42.70.Gi; 42.70.Ln
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. Phase and amplitude gratings in the visible and near-infrared spectral range can be written in SodiumNitroPrusside (SNP), $\rm Na_2[Fe(CN)_5NO] \cdot 2H_2O$ , single crystals by optical excitation of infinitely long-living metastable electronic states, localized in the $\rm [Fe(CN)_5NO]^{2-}$ anions. Hence, its photorefractive effect does not depend on dopants or defects. The refractive index is modulated by more than $\Delta n = 1 \times 10^{-3}$ in the red $(632.8$ nm) and $\Delta n = 5 \times 10^{-4}$ in the near-infrared region $(1047$ nm). The absorption coefficient is modulated by about $\Delta \alpha = 100$ m $^{-1}$ at $632.8$ nm and 40 m $^{-1}$ at 1047 nm. The wavelength dependence of $\Delta n$ can be explained by strong absorption bands in the ultraviolet considering Kramers-Kronig dispersive analysis. The time constant of the write-read-erase processes and the diffraction efficiency $\eta$ depend on light intensity, wavelength and polarization of the light with respect to the crystallographic axes. After excitation of the metastable states the indicatrix is modulated only along the $a$ - and $b$ -axis of the orthorhombic system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01833793
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Surgical treatment of aspergillus spondylodiscitis (2000)
    Springer
    European spine journal 9 (2000), S. 75-79 
    Details
    ISSN: 1432-0932
    Keywords: Key words Aspergillosis ; Spondylodiscitis ; Debridement ; Spinal fusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Four cases of aspergillus spondylodiscitis were treated with operative debridement and fusion. In this rarely encountered mycotic infection of the spine in immunocompromised patients rapid destruction of the intervertebral disc and vertebral bodies can occur. In advanced cases antimycotic drug therapy is thought to be ineffective and a forcing indication for surgery exists when the destruction is progressive and spinal cord compression is imminent or manifest. Spinal instrumentation can be of help in maintaining or restoring spinal stability and maintaining spinal alignment. ¶In our four patients the aspergillus spondylodiscitis was successfully eradicated and fusion achieved. In two of three patients with a neurologic deficit, this deficit disappeared. Two patients died within 6 months after the operative treatment, due to complications related to the underlying illness. One patient was left with a subtotal paraplegia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s005860050014
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Trinucleate cells and the ultrastructural localisation of bovine placental lactogen (1987)
    Springer
    Cell & tissue research 247 (1987), S. 667-673 
    Details
    ISSN: 1432-0878
    Keywords: Secretory granules ; Cell fusion ; Cell migration ; Immunocytochemistry ; Immunogold localisation ; Placenta ; Placental lactogen ; Trinucleate cell ; Cow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Bovine placental lactogen activity is shown by immunogold electron microscopy to be restricted to (a) the granules and the Golgi body from which they form in the bovine fetal trophectodermal binucleate cell, and (b) granules of similar size and staining reaction in trinucleate “giant” cells found in the maternal uterine epithelium throughout pregnancy. These results support the hypothesis that a fetal binucleate cell forms a maternal giant cell by migration to and fusion with a uterine epithelial cell.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00215761
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    Paper (German National Licenses)
    Fulltext
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