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  • 42.80  (1)
  • larval-adult transformation  (1)
  • Springer  (2)
  • 1985-1989  (2)
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  • Springer  (2)
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  • 1985-1989  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Ecdysteroid-dependent larval-adult oviduct transformation in the milkweed bugOncopeltus fasciatus requires absence of juvenile hormone (1987)
    Springer
    Cellular and molecular life sciences 43 (1987), S. 1115-1117 
    Details
    ISSN: 1420-9071
    Keywords: Insect oviduct ; larval-adult transformation ; juvenile hormone ; Oncopeltus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary It has been tested whether juvenile hormone plays a role in the larval-adult transformation of lateral oviducts in the milkweed bug. The transformation is ecdysteroid-dependent, as was reported previously2. Application of precocene or juvenile hormone III proved that the absence of juvenile hormone is required.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01956055
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  • 2
    Electronic Resource
    Electronic Resource
    Calorimetric absorption spectroscopy of J-aggregate dye monolayers below 0.1 Kelvin (1985)
    Springer
    Applied physics 38 (1985), S. 199-203 
    Details
    ISSN: 1432-0649
    Keywords: 42.80 ; 35 ; 07
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We describe an extremely sensitive method to investigate nonradiative processes following optical excitation. In a low-temperature calorimeter, the sample is irradiated with monochromatic light. The absorbed energy which is converted into phonons leads to a measurable increase of the sample temperature. The lowest detectable dissipated energy is 2·10−12J at a working temperature of 0.03 K. We demonstrate our method with a calorimetric absorption spectrum of J-aggregate monolayers of 1-methyl-1′-octadecyl-2,2′-cyanine. From this spectrum the emission quantum efficiency is obtained as a function of excitation wavelength. A relative minimum is found at the long wavelength edge of the absorption band at 582.5 nm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00697484
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    Paper (German National Licenses)
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