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  • Lepidoptera  (2)
  • Complex dielectric constant  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Ultrastructure of exocrine prothoracic gland ofDatana ministra (Drury) (Lepidoptera: Notodontidae) and the nature of its secretion (1986)
    Springer
    Journal of chemical ecology 12 (1986), S. 2039-2050 
    Details
    ISSN: 1573-1561
    Keywords: Datana ministra ; Lepidoptera ; Notodontidae ; exocrine prothoracic gland ; ultrastructure ; dispersal pheromone ; dodecanol ; dodecyl acetate ; dodecyl formate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Datana ministra larvae possess a gland situated in the ventral anterior portion of the prothorax. The gland consists of a single sac and is only charged with secretion in the last instar. Its orifice, a simple slit, opens into a transverse invagination of the integument in the cervical margin of the prosternite. The components of the gland have been identified by GC and GCMS and have been shown to be dodecanol, dodecyl acetate, and dodecyl formate. The morphology of the gland and the chemistry of the secretion are discussed in relation to other notodontid larvae which have been investigated. It is conjectured that the secretion is not defensive in nature but may function as a dispersal pheromone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01041995
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  • 2
    Electronic Resource
    Electronic Resource
    Morphology of the prothoracic defensive gland ofSchizura concinna (J.E. Smith) (Lepidoptera:Notodontidae) and the nature of its secretion (1979)
    Springer
    Journal of chemical ecology 5 (1979), S. 165-177 
    Details
    ISSN: 1573-1561
    Keywords: Schizura concinna ; Lepidoptera ; Notodontidae ; prothoracic ; defensive gland ; allomone ; defensive secretion ; decyl acetate ; dodecyl acetate ; 2-tridecanone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The larval defensive gland ofSchizura concinna (J.E. Smith) is situated in the thorax and consists of two sacs joined by an interglandular neck. Its orifice opens into a transverse invagination of the integument at the cervical margin of the prosternite. The major component of the defensive secretion, formic acid, was identified as itsp-bromophenacyl ester. Ancillary components decyl acetate, dodecyl acetate, and 2-tridecanone from the anterior portion of the gland were identified by GLC and GS-MS.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988232
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  • 3
    Electronic Resource
    Electronic Resource
    Impedance spectroscopy (1992)
    Springer
    Annals of biomedical engineering 20 (1992), S. 289-305 
    Details
    ISSN: 1573-9686
    Keywords: Impedance ; Immittance ; Complex dielectric constant ; Complex modulus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Technology
    Notes: Abstract Impedance spectroscopy (IS) is a general term that subsumes the small-signal measurement of the linear electrical response of a material of interest (including electrode effects) and the subsequent analysis of the response to yield useful information about the physicochemical properties of the system. Analysis is generally carried out in the frequency domain, although measurements are sometimes made in the time domain and then Fourier transformed to the frequency domain. IS is by no means limited to the measurement and analysis of data at the impedance level (e.g., impedance vs. frequency) but may involve any of the four basic immittance levels: thus, most generally, IS stands for immittance spectroscopy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02368532
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