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  • 1
    Electronic Resource
    Electronic Resource
    Feeding preferences of eastern spruce budworm larvae in two-choice tests with combinations of host-plant extracts (1985)
    Springer
    Entomologia experimentalis et applicata 38 (1985), S. 221-225 
    Details
    ISSN: 1570-7458
    Keywords: Eastern spruce budworm ; Choristoneura fumiferana ; Tortricidae ; feeding behaviour ; host plant extracts ; sugars/glycosides ; amino acids/bases ; organic acids ; two-choice feeding tests ; fir ; Abies ; spruce ; Picea spp
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Résumé Trois extraits ont été obtenus de chacune de quatre plantes-hôtes: sucres/glycosides; acides aminées/bases organiques; acides organiques. Les quatre plantes-hôtes étudiées furent le sapin baumier, et les épinettes blanc, noir, et rouge. Le comportement gustatoire des larves a été étudié en raison de l'effet de combinaisons d'extraits de chaque plantehôte. Les résultats comparent la préférence des larves ainsi que leur consommation totale envers ces extraits.
    Notes: Abstract Three extracts were obtained from each of four host plants: sugars/glycosides; amino acids/bases; and organic acids. The four hosts studied were balsam fir, black spruce, red spruce, and white spuce. The effects of recombined host plant extracts on the feeding behaviour of eastern spruce budworm larvae were examined in two-choice tests. Results compare feeding preferences as well as feeding rates between combinations of extracts. The importance of each class of polar compounds is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00295254
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  • 2
    Electronic Resource
    Electronic Resource
    Orientation behavior of second-instar larvae of eastern spruce budwormChoristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae) in a y-type olfactometer (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 837-845 
    Details
    ISSN: 1573-1561
    Keywords: Eastern spruce budworm ; Choristoneura fumiferana ; Lepidoptera ; Tortricidae ; conifers ; Picea sp. ; Abies sp. ; host volatiles ; attraction ; larval olfaction ; olfactometer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract A two-choice, wind-tunnel olfactometer was designed and contructed to determine whether second-instar eastern spruce budworm larvae,Christoneura fumiferana (Clem.), could detect and discriminate among host-plant volatiles. Volatiles of current year's growth ofPicea glauca were preferred over those ofP. rubens, P. mariana, or air.Abies balsamea was preferred overP. mariana or air.P. rubens andP. mariana were both preferred over air. Two-year-old growth ofP. glauca, A. balsamea, P. rubens, andP. mariana were all preferred over air. Current year's growth of these host evergreen species was usually preferred over former year's growth of the same species in each case.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01012072
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  • 3
    Electronic Resource
    Electronic Resource
    Tests for induction of feeding preferences in larvae of eastern spruce budworm using extracts from three host plants (1985)
    Springer
    Journal of chemical ecology 11 (1985), S. 809-817 
    Details
    ISSN: 1573-1561
    Keywords: Eastern spruce budworm ; Lepidoptera ; Tortricidae ; Choristoneura fumiferana ; host preference ; deterrence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Feeding preferences to extracts from three host plants were determined for sixth-instar eastern spruce budworm larvae reared on one of three hosts or on artificial diet. Preferences of foliage-reared larvae were compared to those of diet-reared, or naive, larvae. No effect of plant induction was found using amino acids and bases and chloroform extracts on test disks in three-choice experiments. Possible effects of habituation for sugars and glycosides from white spruce were shown. Organic acids contributed to a phenomenon of avoidance learning in larvae reared on all three hosts, showing that this fraction from balsam fir was the least deterrent, while that from black spruce was the most deterrent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00988308
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  • 4
    Electronic Resource
    Electronic Resource
    Well-Defined Metallodendrimers by Site-Specific Complexation (1997)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 725-728 
    Details
    ISSN: 0009-2940
    Keywords: Dendrimers ; Metal complexes ; Nanostructures ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Strong multiple complexation of transition metal ions, Cu(II), Zn(II) and Ni(II) with different generations of well-defined poly(propylene imine) dendrimers as multi(tridentate) ligands has been used to construct nanoscopic assemblies of defined structure and size incorporating a distinct number of metal ions from 2 up to 32.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19971300608
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  • 5
    Electronic Resource
    Electronic Resource
    Feeding preferences of eastern spruce budworm larvae in two-choice tests with extracts of mature foliage and with pure amino acids (1988)
    Springer
    Journal of chemical ecology 14 (1988), S. 1649-1656 
    Details
    ISSN: 1573-1561
    Keywords: Eastern spruce budworm ; Choristoneura fumiferana ; Lepidoptera ; Tortricidae ; amino acids ; proline ; sucrose ; extracts ; host plants ; feeding behavior
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract The feeding preferences and feeding rates of eastern spruce budworm on extracts from mature foliage normally avoided by larvae indicate that the chemical composition of four major host plants does not account for this avoidance. Other factors such as the degree of lignification and/or moisture content of the older foliage may play a more important role. Of 14 amino acids tested, alanine, lysine, proline, and serine stimulated feeding. The interactions of amino acids and sucrose were studied, and the results are discussed in relation to feeding preferences and feeding rates.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01014549
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  • 6
    Electronic Resource
    Electronic Resource
    Das Aluminium-triäthanolaminat Al(OC2H4)3N und seine koordinativen Verhältnisse (1952)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 269 (1952), S. 67-75 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Bereitung und das chemische Verhalten des Aluminium-triäthanolaminats Al(OC2H4)3N werden beschrieben. Diese Verbindung stellt zwar ebenso wie ihr Analogon, der Triäthanolaminborsäureester, einen Innerkomplex dar, unterscheidet sich aber von ihm durch eine erhebliche Neigung zur Assoziation und durch die Fähigkeit, nicht nur über den Stickstoff, sondern auch in merklichem Ausmaß über das Aluminium komplexe Bindungen einzugehen, was durch den größeren Umfang des Aluminiums bedingt sein dürfte.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19522690108
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  • 7
    Electronic Resource
    Electronic Resource
    Thermal and microwave-activate non-aqueous free-radical dispersion polymerization of methyl methacrylate in n-heptane (1996)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 47 (1996), S. 74-78 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Thermal and microwave-induced free-radical non-aqueous dispersion polymerization of methyl methacrylate (MMA) in the presence of poly(styrene)-block-poly(ethene-alt-propene) dispersing agent were compared. For controlled polymerization in the microwave field, a new microwave polymerization reactor was built to afford uniform heating and to control temperature via microwave power variation. At identical MMA concentration and polymerization temperature of 70°C no special effect of the microwave field on conversions, molecular weights and particle sizes of PMMA was detected with respect to conventional thermal free radical dispersion polymerization.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1996.010470202
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  • 8
    Electronic Resource
    Electronic Resource
    Anhydride-cured epoxy resins toughened with diol- and bis(4-hydroxybenzoate)-terminated poly(tetrahydrofuran) liquid rubbers. Part I. Morphology and blend properties (1995)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 46 (1995), S. 68-73 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A novel class of liquid rubber comprises bis(4-hydroxybenzoate)-terminated poly(tetrahydrofuran), which reacts with bisphenol A diglycidyl ether to form segmented liquid rubbers with poly(tetrahydrofuran) and poly(hydroxyether) segments. In anhydride-cured epoxy resins such segmented liquid rubbers afford improved toughness. Diol- and bis(hydroxybenzoate)-terminated poly(tetrahydrofuran)-based liquid rubbers are compared. It is possible to control the polymer morphology by the variation of the molecular architecture of segmented poly(tetrahydrofuran)-based liquid rubbers. The average size of the dispersed rubber phases depends on the molecular weight of the segmented liquid rubbers and correlates with impact strength and stiffness.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1995.010460110
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  • 9
    Electronic Resource
    Electronic Resource
    Anhydride-cured epoxy resins toughened with diol- and bis(4-hydroxybenzoate)-terminated poly(tetrahydrofuran) liquid rubbers. Part II. Phase separation (1995)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 46 (1995), S. 74-78 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The structure formation via spinodal decomposition is monitored by transmission electron microscopy (TEM) and small angle light scattering (SALS) using hexahydrophthalic anhydride cured bisphenol A diglycidyl ether mixed with bis(4-hydroxybenzoate)-terminated poly(tetrahydrofuran) segmented poly(hydroxyether). The poly(tetrahydrofuran) (PTHF) segment has a number average molecular weight of 4500 g/mol. There is good agreement between the particle - particle spacing obtained from the maximum of SALS traces and the digital image analysis of TEM micrographs. Time-resolved SALS measurements are used to study the phase separation kinetics in the epoxy/diol-terminated PTHF system.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1995.010460111
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  • 10
    Electronic Resource
    Electronic Resource
    Decomposition of Composite Explosives Containing Ammonium Nitrate by transient adiabatic gas compression (1995)
    Weinheim : Wiley-Blackwell
    Propellants, Explosives, Pyrotechnics 20 (1995), S. 273-278 
    Details
    ISSN: 0721-3115
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The decomposition products of emulsion explosives and of other composite explosives containing ammonium nitrate, such as ANFO, were investigated. The compounds were thermolyzed at high temperature and pressure on the microsecond and millisecond time scales by adiabatic gas compression. It was found that the first step in emulsion decomposition is pyrolysis of the oil to form reactive intermediates like Hċ and CH3ċ. These reactive species are oxidized by the decomposition products of ammonium nitrate in a later sequence of reaction steps.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prep.19950200509
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