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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 90 (1968), S. 5127-5131 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 38 (1982), S. 309-310 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary A hydrocarbon (Z)-1, 12-heptadecadiene, was synthesized from the major sex pheromone of the corn earworm,Heliothis zea (Boddie). In field tests, significant disruption of the sexual behavior ofH. zea males was obtained, comparable to the pheromone (Z)-11-hexadecenal. This novel diolefin should be inexpensive, exhibit improved stability, and may lead to improved methods of control.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 28 (1972), S. 1111-1112 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Männchen vonMusca domestica werden von Kohlenwasserstoffextrakten aus der Cuticula weiblicherMusca domestica, M. autumnalis undHaematobia irritan angelockt (gleiche oder ähnliche Pheromone), nicht aber von entsprechenden Extrakten ausStomoxys calitrans, Glossina morsitans, G. austeni, Fannia canicularis undCochliomyia hominivorax.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 38 (1982), S. 473-475 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Sexual responses of adult maleG. pallidipes towards baited decoys show that a contact sex pheromone for this species is present in the hydrocarbon fraction of the adult female cuticle. Results are consistent with the view that the pheromone is a C35 compound and is present in sufficient quantity in newly emerged females to elicit maximum responses from males. Thus, maturation of sexual responsiveness is considered to be behavioural in females of this species.
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 273 (1978), S. 76-76 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THIOTEPA and several of its analogues chemosterilise male mosquito pupae, but the use of these compounds in the field has been restricted because of the presence of mutagenic residues inside the pupae. We were therefore interested in Sharma's1 proposal for eliminating mutagenic resi-dues of ...
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 254 (1975), S. 51-53 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Observations made during the routine mating of one male to one female in a glass tube show that pairing in G. morsitans is achieved very rapidly. The problem of eliminating possible sources of sex recognition related to female behaviour (characteristic movements, sound production, or scent ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Bulletin of environmental contamination and toxicology 9 (1973), S. 365-369 
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Summary Collection or storage of insects in 70% IPA was found to cause loss of body weight, major loss of nonpolar insecticides from submerged specimens, and transfer of insecticide to previously uncontaminated specimens. These effects may by no means be limited to mirex, since any chlorinated hydrocarbon is relatively lipophilic and may behave similarly. Residues reported for treated insects that have been collected or stored in alcohol may have been reduced to 12% of the original value. Moreover, small untreated vertebrates and invertebrates trapped in alcohol with insecticideladen insects are likely to absorb significant amounts of insecticide from the solution. The changes in residue levels owing to the 70% IPA used, though variable, were found to be as large as an order of magnitude, and the use of a correction factor would be badly misleading.
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  • 8
    ISSN: 1570-7458
    Keywords: Lepidoptera ; Pyralidae ; navel orangeworm ; Amyelois transitella ; pheromone mimic ; mating disruption ; Z,Z-1,12,14-heptadecatriene ; Z,Z-11,13-hexadecadienal
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Le Z-Z-1,12,14-heptacécatriène, qui mime l'aldéhyde Z-Z-11,13-hexadécadénial, principal composé de la phéromone de A. transitella Walker, a été essayé pour interrompre les accouplements dans la nature. Un conditionnement avec plastique stratifié a mieux dispersé le triène que la présentation en capsules de polyéthylène. Comme dans le cas des autres produits examinés précédemment, ce triène a interrompu l'attraction sexuelle (réduction du nombre de mâles capturés dans les pièges, réduction du nombre d'accouplements) de A. transitella dans les vergers d'amandiers, pendant moins longtemps que l'aldéhyde. Placé dans des pièges contenant des femelles vierges, il est efficace comme l'aldehyde pendant 5 semaines, pendant 3 semaines lorsqu'il est placé autour des pièges et pendant 13 jours quand il est utilisé dans des parcelles de 9 arbres. Des essais ultérieurs avec d'autres présentations et des quantités plus élevées de triène devraient montrer si ce produit peut être utilisé pour l'interruption des accouplements. Les analogues de phéromones ont généralement une plus grande stabilité et un coût de synthèse moins élevé que les aldéhydes.
    Notes: Abstract A novel olefinic analog, Z,Z-1,12,14-heptadecatriene, was synthesized from Z,Z-11,13-hexadecadienal, a major pheromone component of the navel orangeworm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae), and evaluated as a potential disruptant of mating communication in commercial almond orchards. The effectiveness of the triene as a disruptant was compared to that of the aldehyde by evaluating the reduction in captures of feral males in female-baited traps and the reduction in mating success for females. The triene was highly effective in bringing about reductions in male captures in traps in all tests relative to controls. This effectiveness lasted as long as 5 weeks in one test and was influenced by type of dispenser, release rate and proximity of dispensers to female-baited traps. In none of the tests did the triene outperform the aldehyde in reducing male captures. The results of mating success tests showed the triene to be ineffective relative to controls (26% reduction) while the aldehyde yielded 100% reductions in matings during a 6-day period.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of optimization theory and applications 53 (1987), S. 219-235 
    ISSN: 1573-2878
    Keywords: Optimal control ; existence theory ; sporadically catching-up optimality ; infinite-horizon optimal control problems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper, we extend the existence theory of Brock and Haurie concerning the existence of sporadically catching-up optimal solutions for autonomous, infinite-horizon optimal control problems. This notion of optimality is one of a hierarchy of types of optimality that have appeared in the literature to deal with optimal control problems whose cost functionals, described by an improper integral, either diverge or are unbounded below. Our results rely on the now classical convexity and seminormality hypotheses due to Cesari and are weaker than those assumed in the work of Brock and Haurie. An example is presented where our results are applicable, but those of the above-mentioned authors do not.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of optimization theory and applications 48 (1986), S. 265-287 
    ISSN: 1573-2878
    Keywords: Optimal control ; Hamilton-Jacobi theory ; infinite horizon ; equivalent variational problems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper, we extend Carathéodory's concept of equivalent variational problems to infinite-horizon optimal control problems. In such a setting, the usual concept of a minimum need not exist, and we therefore consider a weaker definition of optimality, known as catching up optimality. The extension presented here leads us to a Hamilton-Jacobi theory for infinite-horizon optimal control problems that closely parallels the classical work of Carathéodory as well as providing sufficient conditions for optimality. Finally, we show that the results given here subsume several previously known results as a special case.
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