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  • 1
    Electronic Resource
    Electronic Resource
    A postbuckminsterfullerene view of carbon in the galaxy (1992)
    s.l. : American Chemical Society
    Accounts of chemical research 25 (1992), S. 106-112 
    Details
    ISSN: 1520-4898
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ar00015a002
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  • 2
    Electronic Resource
    Electronic Resource
    Ecology and Management of the Colorado Potato Beetle (1990)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Entomology 35 (1990), S. 81-100 
    Details
    ISSN: 0066-4170
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.en.35.010190.000501
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  • 3
    Electronic Resource
    Electronic Resource
    Enhanced magnetic coercivities in Fe nanowires (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 75 (1999), S. 3363-3365 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We describe a way of generating films (〈2 mm2; 〈40 μm thick) of aligned Fe-filled carbon nanotubes. These Fe nanowires are usually composed of single Fe crystals, and have dimensions from 5–40 nm outer diameter and 〈10 μm in length. The carbon tubes, which coat the wires, have external diameters of ∼20–70 nm and are 〈40 μm in length. High-resolution electron energy loss spectroscopy, x-ray powder diffraction, and elemental mapping of the tubular structures reveal only characteristic metallic signals and the effective absence of oxygen (or any other nonmetallic element) within the wires. The material exhibits coercivities in the 430–1070 Oe range, i.e., greater than those reported for Ni and Co nanowires. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.125352
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  • 4
    Electronic Resource
    Electronic Resource
    Controlled production of aligned-nanotube bundles (1997)
    [s.l.] : Macmillan Magazines Ltd.
    Nature 388 (1997), S. 52-55 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Carbon nanotubes might be usefully employed in nanometre-scale engineering and electronics. Electrical conductivity measurements on the bulk material, on individual multi-walled and single-walled nanotubes and on bundles of single-walled nanotubes have revealed that they may behave as metallic, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/388052a0
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  • 5
    Electronic Resource
    Electronic Resource
    Condensed-phase nanotubes (1995)
    [s.l.] : Nature Publishing Group
    Nature 377 (1995), S. 687-687 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - Carbon nanotubes1 are conventionally prepared by gas-phase deposition in arc reactors, or by thermal decomposition of hydrocarbons2. We have found that the synthesis of nanotubes from a condensed phase is also possible. Specifically, we have prepared multi-walled nanotubes by passing ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/377687a0
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  • 6
    Electronic Resource
    Electronic Resource
    The S-oxidative degradation of a novel corticosteroid tipredane (INN). Part I: Preliminary investigations into the hydrogen peroxide S-oxidation of tipredane
    Amsterdam : Elsevier
    Journal of Pharmaceutical and Biomedical Analysis 10 (1992), S. 269-277 
    Details
    ISSN: 0731-7085
    Keywords: Corticosteroid ; S-oxidation ; dithioketal ; peroxide ; site and stereoselectivity ; sulphoxide epimers.
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0731-7085(92)80039-P
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of Photosensitive Chemicals on Malaria Parasite Cells (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 346 (1980), S. 0 
    Details
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1749-6632.1980.tb22114.x
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  • 8
    Electronic Resource
    Electronic Resource
    Volatile cues used by the parasitoid, Aphytis melinus, for host location: California red scale revisited (1998)
    Springer
    Entomologia experimentalis et applicata 88 (1998), S. 235-245 
    Details
    ISSN: 1570-7458
    Keywords: foraging behavior ; olfactometer ; host location ; Aonidiella aurantii ; Aphytis melinus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Aphytis melinus DeBach (Hymenoptera: Aphelinidae) is a biological control agent of diaspidid scale insects. The parasitoid has a narrow host range but its hosts are polyphagous. We determined the source of volatile cues the wasp uses to locate its few host species when those hosts occur on more than one host plant species. We addressed four questions in regard to the use of volatile cues in host location of California red scale, Aonidiella aurantii (Maskell) (Homoptera: Diaspididae): (1) Does A. melinus use volatile cues to assist in host location? (2) Are these cues innately recognized or learned? (3) Are cues produced by female California red scale, or from other sources? (4) Are the cues specific to the host or host plant? These questions were tested through the use of a Y-tube olfactometer. Female A. melinus used volatile cues to orient toward both infested and uninfested host plant material. Wasps learned these cues by associating odors from the host plant with host presence. They had no innate preferences for scale insect or host plant volatile stimuli. Contrary to previous studies, we found no evidence of orientation toward the female-produced sex pheromone of California red scale, nor to volatile cues from the attacked host stage. Wasps given experience with scale insects growing on lemon fruit subsequently oriented toward lemon and orange fruit and leaves. The scale species with which the wasp was given experience did not affect this preference. Wasps given experience with California red scale growing on squash did not orient toward infested lemon fruit. The host ranges of the parasitoid and its hosts are used to explain the adaptive value for the evolution of learned rather than fixed responses to cues used in foraging behavior.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003400215721
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  • 9
    Electronic Resource
    Electronic Resource
    Priming Aphytis: behavioral modification of host selection by exposure to a synthetic contact kairomone (1996)
    Springer
    Entomologia experimentalis et applicata 78 (1996), S. 263-269 
    Details
    ISSN: 1570-7458
    Keywords: Aphytis melinus ; kairomone ; O-caffeoyltyrosine ; host recognition ; learning
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The introduced parasitoid, Aphytis melinus DeBach (Hymenoptera: Aphelinidae), utilizes a kairomone, O-caffeoyltyrosine, to recognize California red scale, Aonidiella aurantii (Maskell) (Homoptera: Diaspididae). Wasps used in augmentative release programs for California red scale on California citrus are reared on oleander scale, Aspidiotus nerii Bouché (Homoptera: Diaspididae), themselves reared on squash. The goals of this study were: 1) to determine if long-term rearing on oleander scale had caused A. melinus to develop a preference for oleander scale, and 2) to determine if the preference of oleander-reared A. melinus for California red scale might be enhanced by exposing them to synthetic O-caffeoyltyrosine prior to release. Wasps that were removed from their hosts as pupae and allowed to emerge as adults isolated from their hosts retained a strong preference for California red scale regardless of rearing host. This preference was reduced if wasps were allowed to emerge from oleander scale, thus acquiring early adult experience with oleander scale. The preference for California red scale was restored, however, by exposing wasps reared on oleander scale to synthetic O-caffeoyltyrosine prior to bioassay. Exposure of A. melinus reared in commercial insectaries to O-caffeoyltyrosine prior to release may be a means to improve the effectiveness of such wasps in augmentative release programs to control California red scale.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00193445
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  • 10
    Electronic Resource
    Electronic Resource
    Increased parasitization of California red scale in the field after exposing its parasitoid, Aphytis melinus, to a synthetic kairomone (1997)
    Springer
    Entomologia experimentalis et applicata 82 (1997), S. 73-81 
    Details
    ISSN: 1570-7458
    Keywords: O-caffeoyltyrosine ; host recognition ; learning ; biological control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The introduced parasitoid, Aphytis melinus DeBach (Hymenoptera: Aphelinidae), utilizes a kairomone, O-caffeoyltyrosine, to recognize California red scale, Aonidiella aurantii (Maskell) (Homoptera: Diaspididae). Wasps used in augmentative release programs for California red scale on California citrus are reared on oleander scale, Aspidiotus nerii Bouché (Homoptera: Diaspididae), themselves reared on squash. Previous laboratory studies demonstrated that wasps reared on oleander scale but exposed to O-caffeoyltyrosine before bioassay more readily accepted California red scale covers for probing than wasps reared similarly but not exposed to O-caffeoyltyrosine. The goal of this study was to determine if wasps reared on oleander scale but exposed to O-caffeoyltyrosine actually parasitized a greater number of field-reared California red scale than unconditioned wasps. In order to distinguish between progeny of conditioned and unconditioned wasps in the field, we utilized two A.melinus strains that carried different electrophoretically distinguishable alleles. In half of the releases, Strain ‘A’ was conditioned to O-caffeoyltyrosine and Strain ‘B’ served as the control, while this pattern of conditioning was reversed for the remaining releases. Although there were differences in the rates of population growth of the two strains, whichever strain was the conditioned strain left a greater than expected number of progeny compared to the control strain in all comparisons. Exposure of A. melinus reared in commercial insectaries to O-caffeoyltyrosine prior to release may be a means to improve the effectiveness of such wasps in augmentative release programs to control California red scale.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1002910400320
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