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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 96 (1992), S. 2404-2406 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 98 (1993), S. 6102-6120 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The resonant two-photon ionization spectra of the first benzene–Arn (n≤8) clusters are interpreted in the light of a model calculation, including local energy minima determinations and Monte Carlo simulations. Based on spectral shift information, two types of structures are distinguished: the argon cluster either only solvates one side of the substrate molecule or covers simultaneously both sides. The "wettest'' structures are assigned to sandwich-type forms for n≤4 and to clamshell-type forms beyond. Such a 2D–3D transition in the n=5–8 size range is shown to be specific to small substrate size. In the one-sided forms, the argon cluster geometry is strongly influenced by the presence of the Bz molecule since it adopts a quasiplanar geometry, more or less tightly bound to the substrate depending on its size: the small argon clusters exhibit two types of complexation sites (c and s forms) which are simultaneously visited (surface decoupling) even at low temperature (∼7 K). As the size increases, the c form becomes prevalent and the surface decoupling becomes inhibited. At n=8 a 2D–3D transition is observed: beyond the n=7 species, characterized by a caplike close-packed structure, the one-sided conformers disappear in favor of bridged forms. Additional results on the ionization behavior of the one-sided species show regular variation of the ionization potential with the cluster size.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Inorganic chemistry 32 (1993), S. 5053-5057 
    ISSN: 1520-510X
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An apparatus is described for the measurement of photo processes in mass-selected cluster ions. A gridless reflectron type of time-of-flight (TOF) mass spectrometer is used to select an ion of known mass. The selected ion is photoexcited with a pulsed dye laser. The charged fragments are mass separated in a second linear TOF. A new combination of reflectron and linear TOF is described, which allows one to measure the complete photofragment mass distribution over an arbitrary large mass range for each laser shot, which was not possible earlier. It is discussed how clusters with different temperatures can be prepared. The first measurement of a temperature-dependent effect for mass-selected free cluster ions is presented.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of child psychology and psychiatry 35 (1994), S. 0 
    ISSN: 1469-7610
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Abstract The predictive power of early visual attention in terms of later cognitive functioning was compared to standard developmental test scores and further early predictors of later development. In a longitudinal study of 226 infants at risk visual attention in a habituation-dishabituation paradigm was assessed at 3 months and cognitive development was measured at 3, 24 and 54 months. The results indicated that response decrement and response recovery measures are related lo cognitive outcome in later childhood, but failed to support their superiority over standard developmental test scores or early biological and psychosocial predictors of later IQ. Methodological shortcomings of previous studies and theoretical weaknesses of the habituation concept were discussed as a possible explanation.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1520-6041
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 96 (1992), S. 4131-4133 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of child psychology and psychiatry 32 (1991), S. 0 
    ISSN: 1469-7610
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine , Psychology
    Notes: Abstract– The well known association between child and adolescent psychiatric disorders and chronic adversities was proved in a field sample. Children (356) were investigated at the ages of 8 and 13 years. The association between child psychiatric disorders and chronic adverse conditions in the familial environment—measured by the FAI—was analysed with respect to the variables: age, sex, psychiatric diagnoses, and course (stability) of disorder. The FAI proved to be predictive of psychiatric disorder, in particular of early onset disorder, of disorders in boys, and of conduct disorders. According to the results, the common assumption that chronic adversities cause child psychiatric disorders must be viewed cautiously.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 14 (1942), S. 112-117 
    ISSN: 1432-2242
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Theoretical and applied genetics 14 (1942), S. 1-19 
    ISSN: 1432-2242
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Zusammenfassung Der strenge Winter 1939/40 bot die Möglichkeit, ein großes Material von älteren, zum Teil im Ertragsalter stehenden Kern- und Steinobstsämlingen auf sein Verhalten gegenüber der Frosteinwirkung im Vergleich mit dem Grad der Frostempfindlichkeit der Elternformen zu prüfen. Untersucht wurden beim Apfel Nachkommen von Kultursorten (frei abg. und Kreuzungen zwischen Sorten), von Malus-Arten und Bastardformen (frei abg. und Kreuzungen zwischen Malus-Arten), Nachkommen aus Kreuzungen zwischen Kultursorten und Malus-Arten, aus Kreuzungen der Sorten-Spezies-Bastarde mit Kultursorten, bei der Birne Nachkommen von Kultursorten (frei abg. und Kreuzungen zwischen Sorten) und von Pirus-Arten (frei abg.), von Kirschen Nachkommen aus Kreuzungen zwischen Süßkirschensorten, aus Kreuzungen zwischen Sauerkirschensorten bzw. Amarellen und aus Kreuzungen zwischen Süß-und Sauerkirschen, von Pflaumen Sämlinge von Kultursorten (frei abg. und Kreuzungen zwischen Sorten). Das umfangreichste und aufschlußreichste Material stellten die Apfelsämlinge dar. Das Verhalten der Nachkommenschaften führte zu der Feststellung, daß 1. der für die Ausgangsformen festgestellte Grad der Frostempfindlichkeit eine genotypisch bedingte Eigenschaft ist und 2. daß viele Apfelsorten die für sie typische Reaktion gegen Frost in starkem Maße auf ihre Nachkommen übertragen. Die züchterische Bedeutung dieser Feststellungen liegt darin, daß 1. ein gutes Bild über den Zuchtwert bestimmter Sorten hinsichtlich der Frostresistenz gewonnen wurde und 2. die Ergebnisse der Beobachtungen dazu ermutigen, beim Apfel in der Züchtung auf Frostresistenz auf den schwierigen Weg über die Artbastardierung ganz zu verzichten. Die Annahme einer genotypischen Bedingtheit der sorteneigentümlichen Reaktion gegen-über Frosteinwirkungen wird auch auf die anderen Fruchtgattungen übertragen. Bei der Birne sind die Aussichten für die Auslese frostresistenter Formen aus Nachkommenschaften von Kultursorten bei weitem ungünstiger als beim Apfel. Unter den Kirschen- und Pflaumensämlingen wurden Formen ausgelesen, die genügende Frostresistenz mit ansprechender Fruchtqualität in sich vereinigen.
    Type of Medium: Electronic Resource
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