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  • 42.55
  • Scolytidae
  • Springer  (2)
  • 2005-2009
  • 1985-1989  (2)
  • 1980-1984
  • 1975-1979
  • 1965-1969
  • 1986  (2)
Collection
Keywords
Publisher
  • Springer  (2)
Years
  • 2005-2009
  • 1985-1989  (2)
  • 1980-1984
  • 1975-1979
  • 1965-1969
Year
  • 1
    Electronic Resource
    Electronic Resource
    Sex-specific production of ipsdienol and myrcenol byDendroctonus ponderosae (Coleoptera: Scolytidae) exposed to myrcene vapors (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 1579-1586 
    Details
    ISSN: 1573-1561
    Keywords: Dendroctonus ponderosae ; bark beetle ; Coleoptera ; Scolytidae ; myrcene ; aggregation pheromones ; ipsdienol ; myrcenol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Male mountain pine beetles,Dendroctonus ponderosae Hopkins, produced ipsdienol [97.0% ± 0.3S-(+)] and myrcenol (90.3% ± 4.0E) when exposed to myrcene vapors. Females which were exposed to myrcene vapors did not produce any ipsdienol, but did produce low levels of myrcenol (98.0% ± 0.7E). Neither sex produced detectable levels of ipsdienol or myrcenol when fed for 24 hr on lodgepole pine,Pinus contorta var.latifolia Engelmann. The sex-specific conversion of myrcene to ipsdienol and myrcenol suggests that these compounds may have behavioral significance within the species. In addition, the S-(+)-ipsdienol produced by maleD. ponderosae probably functions as a repellent allomone againstIps pini (Say).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01020265
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  • 2
    Electronic Resource
    Electronic Resource
    Characterization of the noise in continuously operating mode-locked lasers (1986)
    Springer
    Applied physics 39 (1986), S. 201-217 
    Details
    ISSN: 1432-0649
    Keywords: 42.55 ; 42.80
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract An experimental and theoretical investigation of the fluctuations of the pulses from continuous-wave mode-locked lasers is presented. It is shown that these fluctuations can be detected and quantitatively characterized from measurements of the power spectrum of the light intensity. Such power spectra can be measured with great accuracy by shining the laser output on a suitable photodetector and by processing the detector signal with the use of an electronic spectrum analyzer. Different types of noise such as fluctuations of the pulse energy, pulse repetition time, and pulse duration, can be readily recognized from their characteristic spectral signature. Experimental results of noise measurements are presented for a synchronously mode-locked dye laser pumped by an acousto-optically mode-locked argon ion laser, and also for a colliding pulse passively mode-locked dye laser.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00697487
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    Paper (German National Licenses)
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