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  • 1965-1969  (11)
  • 1950-1954
  • 1968  (11)
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Material
Years
  • 1965-1969  (11)
  • 1950-1954
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Fluoroolefins. II. Isomerization of .beta.-substituted perfluoroolefins. Kinetic vs. equilibrium control (1968)
    s.l. : American Chemical Society
    The @journal of organic chemistry 33 (1968), S. 1854-1860 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01269a033
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    APPLICATION OF ERYTHROPOIETIN ANTISERA TO STUDIES OF ERYTHROPOIESIS (1968)
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 149 (1968), 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.1749-6632.1968.tb15162.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Coulometric titration wustite (1968)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 72 (1968), S. 485-488 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100848a016
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of pH upon the nuclear magnetic resonance spectra of nucleosides and nucleotides (1968)
    s.l. : American Chemical Society
    Biochemistry 7 (1968), S. 1038-1043 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00843a024
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Separating and isolating Aroma and Flavor Constituents of Roasted Peanuts (1968)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 33 (1968), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A technique was developed for the extraction of quantities of peanuts and for the separation of those extracts into fractions of different chemical categories, each of which had a distinct aroma. Twelve acids were identified; the presence of hexanal, 2,4-decadienal and β-sitosterol was confirmed; and evidence was gathered that indicates the presence of aliphatic lactones. In addition, 2-oxooctanal and a dihydroxynaphthaleneacetic acid were also found to be present. Gas chromatographic examination of the acid fractions from three varieties of peanuts showed some qualitative and quantitative differences.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1968.tb09081.x
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    Paper (German National Licenses)
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  • 6
    facet.materialart.
    Unknown
    Sex, brain damage, and race effects in the progressive matrices with retarded populations (1968)
    Worcester, Mass. : Periodicals Archive Online (PAO)
    Journal of Social Psychology. 76 (1968) 207 
    Details
    ISSN: 0022-4545
    Topics: Psychology , Sociology
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:1143-1968-076-00-000034
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  • 7
    Electronic Resource
    Electronic Resource
    Induction of specific food preference in lepidopterous larvae (1968)
    Springer
    Entomologia experimentalis et applicata 11 (1968), S. 211-230 
    Details
    ISSN: 1570-7458
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Description / Table of Contents: Zusammenfassung Larven des letzten Entwicklungsstadium von Manduca sexta (Sphingidae) und Heliothis zea (Noctuidae), die an verschiedenen Wirtspflanzen gezüchtet wurden, bevorzugten in individuellen Nahrungswahlversuchen jene Pflanzenarten, an welchen sie sich entwickelten. Diese induzierte Präferenz ist spezifisch für die induzierende Pflanzenart und nicht einfach eine allgemeine Verschiebung der Reizschwelle für Frass- bzw. Vergällungsstoffe. Die Stärke der durch verschiedene Wirtspflanzen induzierten Präferenz variierte von Pflanze zu Pflanze erheblich. Es war nicht möglich, Präferenz für eine Pflanzenart ausserhalb des Wirtspflanzenkreises zu induzieren. In den an künstlicher Nahrung gezüchteten Raupen entwickelte sich die Präferenz für eine gegebene Wirtspflanze bereits während einer eintägigen Ernährung an derselben. Die einmal erworbene Präferenz wurde selbst durch zwei Häutungen und Ernährung mit künstlicher Nahrung nicht ausgelöscht. Demnach wird angenommen, dass die als Basis für die induzierte Präferenz dienende Rezeptoreninformation im Zentralnervensystem gespeichert wird. Die wahrscheinliche ökologische Bedeutung der induzierten Präferenz wird besprochen.
    Notes: Abstract Last instar larvae of Manduca sexta (Johanssen) and Heliothis zea (Boddie), fed on different host plants or on artificial diet, and then tested individually, have shown clear preference for the plant previously eaten. This induced preference is specific for the inducing plant species and is not merely a change in the insect's general threshold of food acceptability. The extent to which preference can be induced by various host plants differs considerably. No induction is possible with plants outside the insect's host range. In larvae fed on artificial diet preference to a given host plant can be induced even by a one-day feeding on it. A preference once induced is not wiped out by two larval moults and subsequent feeding on an artificial diet. Thus it is supposed that the information serving as a basis for the induced feeding habit is stored in the central nervous system. The possible ecological significance of the induced preference is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00305230
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    The Nilgiri langur (Presbytis johnii) mother-infant dyad (1968)
    Springer
    Primates 9 (1968), S. 45-68 
    Details
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract There is considerable inter-generic and inter-specific variation in the mode and quality of the mother-infant relationship. Although the Nilgiri langur mother-infant dyad resembles that reported for most colobids, there are important differences. The Nilgiri and south Indian langur mother-infant pattern resemble each other more than each resembles the north Indian pattern. The Nilgiri langur mother-infant relationship differs from the north Indian pattern (especially) in the relative disinterestedness the Nilgiri langur mother exhibits for her infant, the earlier onset of weaning, the limited period of infant transferring, and the limited amount of mother-infant social interaction. It is suggested that the quality of the mother-infant bond influences the infant's socialization experience and hence, affects the social order. Therefore, the Nilgiri langur social organization reflects adjustments to not only an arboreal existence, a lack of predation and correlated features, but also to processes linked to the mother-infant relationship social interaction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01795885
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Analysis of a Nilgiri langur (Presbytis johnii) home range change (1968)
    Springer
    Primates 9 (1968), S. 29-43 
    Details
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Little published information exists detailing home range changes among nonhuman primates. Resulting from human destruction of the habitat, one of the observed Nilgiri langur troops was forced to relocate its home range, during which several interesting behavioral patterns emerged. Most important was the observation that the animals were very reluctant to desert the home range, even when the last trees in the core area were being destroyed. Adult males and adult females responded differently to the destruction and resultant shift. The males appeared less nervous than the females and deserted the home range prior to them. The reaction of surrounding troops to the shift of troop A, strongly suggests territorial behavior among Nilgiri langurs. Finally, this shift, along with other observations reported elsewhere, demonstrates that Nilgiri langurs are quite adaptable and appear to possess the ability to survive in an ecology being rapidly destroyed by the human population.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01795884
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Nilgiri langur (Presbytis johnii) territorial behavior (1968)
    Springer
    Primates 9 (1968), S. 351-364 
    Details
    ISSN: 0032-8332
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract During 1250 hours of observation 84 intertroop encounters were witnessed suggesting territorial behavior. Most of these involved an exchange by adult males of visual and/or vocal signals. Chasing was rare, and when it occurred, it seemed to be “ritual chasing.” The amount of intertroop male intolerance was unexpected. Arboreal animals occupying upper story vegetation which provided an unobstructed view of the surroundings, could easily avoid contact. It is therefore interesting that males regularly sought other males to display against. Although encounters were frequent, the cost to the participants was minimal because physical contact and injury rarely occurred. The exact function of Nilgiri langur territories is unclear. Presumably, territorial behavior regulated population dispersal, especially of adult males, and population numbers. Territorial behavior also protected core areas against incursions which indirectly prevented, or minimized, overfeeding and overcrowding.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01730876
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