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  • Chemical Engineering  (1)
  • Trichoptera  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Survival of Diplectrona modesta banks (Trichoptera : Hydropsychidae) during short periods of desiccation (1981)
    Springer
    Hydrobiologia 77 (1981), S. 61-63 
    Details
    ISSN: 1573-5117
    Keywords: Diplectrona modesta ; Trichoptera ; Hydropsychidae ; intermittent stream ; desiccation survival
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Larvae of the caddisfly, Diplectrona modesta (Hydropsychidae), were found to be permanent inhabitants of a small, intermittent, headwater stream in southern Ontario. They survived desiccation for at least four weeks in summer. A laboratory experiment gave a mean survivorship of 50% after 30 days without water in stream gravel and stones after the larvae had been permitted to construct their shelters. Survivors were those that constructed their tubes deep in the substrate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00006388
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  • 2
    Electronic Resource
    Electronic Resource
    The stabilizing properties of some lead stabilizers (1979)
    Brookfield, Conn. : Wiley-Blackwell
    Journal of Vinyl and Additive Technology 1 (1979), S. 47-50 
    Details
    ISSN: 0193-7197
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Four different lead stabilizing systems are investigated to determine their stabilizing efficiency in PVC against thermal degradation and photodegradation. The best results were achieved with the complex stabilizer, 2-basic lead phosphite-sulfite.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/vnl.730010111
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