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  • Articles: DFG German National Licenses  (11)
  • 1
    Electronic Resource
    Electronic Resource
    Neue Beobachtungen über den Zusammenhang der Verringerung des Seh- und Hörvermögens an Patienten mit Degeneratio pigmentosa retinae (1961)
    Springer
    Graefe's archive for clinical and experimental ophthalmology 163 (1961), S. 575-579 
    Details
    ISSN: 1435-702X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Unsere Ergebnisse in ihrer Gesamtheit überblickend stellen wir fest, daß wir bei allen 26 Untersuchten eine nervöse Schwerhörigkeit verschiedenen Grades gefunden haben, welche bei höheren Frequenzen stärker ausgeprägt war. Wir könnten weder zwischen Sehschärfe und Schwerhörigkeit, noch zwischen Gesichtsfeldeinengung und der Letzterwähnten einen Zusammenhang finden. Unentschieden blieb auch die Frage der Lateralisierung. Nach unseren Befunden progrediiert die Schwerhörigkeit mit zunehmendem Alter—im Gegensatz zur Abnahme der Sehschärfe—nicht; es scheint vielmehr, als ob die Hörverminderung ein mit der D.p.r. zusammenhängenderZustand wäre. Die Frage blieb auch nach unseren Regressionsuntersuchungen offen, ob die Schwerhörigkeit bei D.p.r. labyrinthären oder retrolabyrinthären Ursprunges ist.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00683207
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  • 2
    Electronic Resource
    Electronic Resource
    Energy-dispersive, bulk specimen X-ray microanalytical measurement of the intracellular Na+/K+ ratio in human laryngeal tumors (1987)
    Springer
    Journal of cancer research and clinical oncology 113 (1987), S. 197-202 
    Details
    ISSN: 1432-1335
    Keywords: Intracellular Na+ content ; Mitogenesis ; X-ray microanalysis ; Laryngeal tumors ; Human biopsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Energy-dispersive X-ray microanalysis was performed on human biopsy materials taken during laryngoscopic intervention in 18 cases. The removed tissue pieces were divided into two parts. One of them was used for pathohistological studies, the other was processed for X-ray microanalysis by the freeze-fracture freeze-drying method. Of the cases investigated 4 proved to be of benign character, whereas the rest contained carcinoma planocellulare keratoides or nonkeratoides. Bulk specimen energy-dispersive X-ray microanalysis of 135 cells from the benign tissue samples revealed an average Na+/K+ molar ratio of 0.13±0.01 (SEM) in the intracellular space, with a regular Gaussian distribution. In the cases of carcinomas 641 cells were measured, the average of the same ratio was 0.67±0.03 (SEM) due mostly to an increase in the Na+ content. The distribution of data was apparently not normal in the cancerous samples. These observations and some theoretical considerations support the notion that the intracellular Na+/K+ ratio correlates with the proliferative capacity of tissues. The relevance of some recent biochemical results is also discussed in this respect.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00391444
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  • 3
    Electronic Resource
    Electronic Resource
    Patterning polymer metal precursor for high temperature superconductor films (1997)
    Springer
    Journal of materials science 16 (1997), S. 16-18 
    Details
    ISSN: 1573-4811
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018524111864
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  • 4
    Electronic Resource
    Electronic Resource
    Epitaxial growth of solution deposited Bi $_\mathsf{2}$ Sr $_\mathsf{2}$ CaCu $_\mathsf{2}$ O $_\mathsf{x}$ films (2004)
    Springer
    The European physical journal 39 (2004), S. 149-154 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The epitaxial growth of Bi2Sr2CaCu2O x (Bi2212) high temperature superconducting thin films was studied. The films were solution-deposited from a polymer-containing precursor onto SrTiO3 (001) substrates. Bi2212 formed an epitaxial phase with the c-axis parallel to the substrate normal and an in-plane orientation with the a-axis parallel to the SrTiO3 [110] and [ $\bar{1}$ 10] directions. This phase was found to be robust with respect to small changes in stoichiometry, where the appearance of an additional BiSrCuO phase was observed. This minority phase had no major effect on the epitaxial alignment of the Bi2212 phase or the critical temperature of the thin-film sample.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2004-00191-0
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  • 5
    Electronic Resource
    Electronic Resource
    Patterning polymer metal precursors for high temperature superconducting Bi-Sr-Ca-Cu-O-films (1996)
    Springer
    Journal of low temperature physics 105 (1996), S. 1289-1294 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Bi-Sr-Ca-Cu-O HTSC thin films were prepared from polymer metal precursors in a special annealing procedure. The precursor films can be patterned before the annealing process in which the superconducting phase is generated. We have investigated the patterning of precursor films by UV radiation, and the thermal degradation process by thermogravimetry and mass spectroscopy. The HTSC films were characterized by X-ray diffraction and electrical resistivity measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00753878
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  • 6
    Electronic Resource
    Electronic Resource
    Epitaxial growth of solution deposited YBa2Cu3O7-δ films (2004)
    Springer
    The European physical journal 42 (2004), S. 483-490 
    Details
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The solution deposition of YBa2Cu3O7-δ (Y123) high temperature superconducting thin films was studied. The films were prepared from a polymer-containing precursor onto SrTiO3 (001) and LaAlO3 (001) substrates and mineralized at high temperatures. The process depended on details of the film preparation in a delicate fashion, resulting either in superconducting or non-superconducting thin films. To elucidate this difference in conductivity, scanning electron microscopy and several X-ray diffraction techniques were used to characterize the resulting Y123 layers. Both the morphology of the film and the percentage of non-superconducting minority components are likely to be the origin of the difference in the conductance behavior at low temperatures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjb/e2005-00006-x
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  • 7
    Electronic Resource
    Electronic Resource
    Radiation chemical reactions of poly-p-chlorphenylmethacrylate by ESCA (1985)
    Springer
    Polymer bulletin 14 (1985), S. 147-151 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary ESCA is used to characterize ion beam irradiated P(p-ClPhMA)-samples. The results show a chlorine abstraction. The experimental findings are in accordance with a recently proposed model for a crosslinking mechanism of halogenated aromatic polymers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00708473
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  • 8
    Electronic Resource
    Electronic Resource
    Analysis of poly(chlorophenyl methacrylates) by ultraviolet spectroscopy (1991)
    Springer
    Polymer bulletin 26 (1991), S. 79-86 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary A number of copolymers of methyl methacrylate and chlorophenyl methacrylates of different structure was prepared and analyzed by ultraviolet spectroscopy. It was found that the copolymer composition can be determined using a calibration curve based on mixtures of the appropriate homopolymers. The U. V. spectroscopical results are in good agreement with the chlorine analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00299351
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  • 9
    Electronic Resource
    Electronic Resource
    Investigations of the thermal degradation of polymer metal precursors for high temperature superconducting ceramics (1994)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 349 (1994), S. 256-257 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Polymer metal precursors are characterized by thermal degradation and mass spectrometric thermal analysis while the HTS phases are characterized by X-ray diffraction and measurements of the electrical resistance. It is to be assumed that the methacrylic acid groups of the polymer does not only form salts with the metal ions but also complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00323306
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  • 10
    Electronic Resource
    Electronic Resource
    Crosslinking in halogen containing novolac electron beam negative resists (1995)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 35 (1995), S. 180-183 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Halogenophenol novolac (HPN)-based negative resists exhibit excellent sensitivity and pattern resolution properties. The HPNs act as synergists for crosslinking with other irradiation labile compounds such as naphthoquinone diazide and bisazide vs. hydrogen halide (HX) elimination reaction, resulting in additional crosslinking, probably by aryl radical recombination and/or addition. We describe a new resist formulation based on HPN binder and melamine crosslinker (Cymel 303). In this case the irradiation induced HX elimination additionally catalyzes the melamine crosslinking.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760350210
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