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  • 1980-1984  (2)
  • Anaerobic threshold  (1)
  • Delia antiqua
  • Helianthus annuus
  • 1
    Electronic Resource
    Electronic Resource
    Specificity of the anaerobic threshold in endurance trained cyclists and runners (1981)
    Springer
    European journal of applied physiology 47 (1981), S. 93-104 
    Details
    ISSN: 1439-6327
    Keywords: $$\dot V$$ O2 max ; Anaerobic threshold ; Bicycle ergometer ; Treadmill
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study examined the specificity of maximum aerobic power and the anaerobic threshold (AT) in 10 endurance-trained cyclists and 10 endurance-trained runners who performed continuous progressive work tests on the bicycle ergometer and treadmill. Dependent ‘t’ tests for $$\dot V$$ O2 max l/min−1 indicated that the cyclists scored higher on the bicycle ergometer ( $$\bar X$$ =4.5 l/min−1) than the treadmill ( $$\bar X$$ =4.34 l/min−1) but the difference was not statistically significant. By contrast, the runners fared significantly better (p〈0.05) on the treadmill ( $$\bar X$$ =68.1 ml/kg·min−1) compared with the bicycle ergometer ( $$\bar X$$ =61.7 ml/kg·min−1). When the AT was expressed as a percentage of $$\dot V$$ O2 max, there were no significant differences between the cyclists (66.3%) and runners (61.2%) on the bicycle ergometer or the runners (77.3%) and cyclists (74.3%) on the treadmill. However, this tendency for the better score to be registered by the group tested on the activity for which it trained was most pronounced when the AT was expressed in l/min−1 and ml/kg·min−1·Independent ‘t’ tests accordingly indicated that the cyclists (3.0 l/min−1) had significantly (p〈0.05) greater AT's than the runners (2.56 l/min−1) on the bicycle ergometer whereas the runners (52.7 ml/kg·min−1) had significantly (p〈0.05) higher AT's than the cyclists (46.8 ml/kg·min−1) on the treadmill. These data suggest that the adaptive responses to exercise are in part a function of the specific movement patterns executed in training. Thus, if $$\dot V$$ O2 max and the AT are to be measured in the laboratory, the tests must allow optimal innervation of the specifically trained muscle fibres.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00422487
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Search for potent attractants of onion flies (1984)
    Springer
    Journal of chemical ecology 10 (1984), S. 1477-1488 
    Details
    ISSN: 1573-1561
    Keywords: Delia antiqua ; onion fly ; Diptera ; Anthomyiidae ; food attractants ; host attractants ; microbial attractants ; Klebsiella pneumoniae ; bacteria ; Allium ; onion ; garlic ; chive
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Of various chopped vegetables tested,Allium spp. high in propyl-containing alkyl sulfides (e.g.,cepa group) caught the most onion flies in trapping tests in the field. Fly catches to chopped onion increased with bait quantity. Attractancy of chopped onion changed dramatically during aging in the field; catch increased over the first few days, peaked at ca. fivefold over fresh material by 3–5 days, and then declined sharply. This age-dependent increase in attraction was not seen for garlic (known to have antimicrobial properties) nor with chopped onion mixed with chopped garlic. These data suggested that attraction of onion flies to onions was strongly influenced by microbial activity associated with decomposing onions. The bacteriumKlebsiella pneumoniae was identified as a major colonizer of onions maximally attractive to onion flies. This increased attraction is not due to the previously reported microbially produced volatiles ethyl acetate and tetramethyl pyrazine.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00990317
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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