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  • 1
    Monograph available for loan
    Monograph available for loan
    Gruppendiskussionen : ein Praxis-Handbuch (2018)
    Wiesbaden : Springer Fachmedien Wiesbaden GmbH | Wiesbaden : Springer VS
    Details Availability
    Call number: IASS 19.92570
    Type of Medium: Monograph available for loan
    Pages: XVIII, 331 Seiten , Illustrationen , 24 cm x 16.8 cm, 593 g
    Edition: 2. Auflage
    ISBN: 3658189363 , 9783658189365 , 9783658189372 (electronic)
    URL: Inhaltstext
    Language: German
    Branch Library: RIFS Library
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  • 2
    Electronic Resource
    Electronic Resource
    An operator ideal in connection with gaussian measures and applications to nuclearity of integral operators (1982)
    Springer
    Mathematische Annalen 258 (1982), S. 319-328 
    Details
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01450685
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  • 3
    Electronic Resource
    Electronic Resource
    On ther-nuclearity of Gaussian covariances and the composition of nuclear operators (1983)
    Springer
    Mathematische Annalen 262 (1983), S. 377-381 
    Details
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01456015
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  • 4
    Electronic Resource
    Electronic Resource
    Entropy and eigenvalues of certain integral operators (1984)
    Springer
    Mathematische Annalen 268 (1984), S. 127-136 
    Details
    ISSN: 1432-1807
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01463877
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  • 5
    Electronic Resource
    Electronic Resource
    Entropy and eigenvalues of weakly singular integral operators (1988)
    Springer
    Integral equations and operator theory 11 (1988), S. 64-86 
    Details
    ISSN: 1420-8989
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper the asymptotic behaviour of entropy numbers and eigenvalues of weakly singular integral operators acting between Lp-spaces over arbitrary bounded open domains in ℝN are investigated. The singularities contain not only power but also logarithmic terms. In particular, we consider the case where the (power) order of the singularity equals half of the dimension of the domain, thus refining earlier results of H. König [6].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01236654
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  • 6
    Electronic Resource
    Electronic Resource
    Eigenvalues of integral operators with smooth positive definite kernels (1987)
    Springer
    Archiv der Mathematik 49 (1987), S. 525-534 
    Details
    ISSN: 1420-8938
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01194301
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  • 7
    Electronic Resource
    Electronic Resource
    Einfache Synthesen von symmetrischen Bis(trimethylsilyl)-ethenen (1978)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 111 (1978), S. 3119-3123 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Simple Syntheses of Symmetrical Bis(trimethylsilyl)ethenestrans-1-(Chlorodimethylsilyl)-2-(trimethylsilyl)ethene (3) is obtained by direct addition of chlorodimethylsilane (2) to mono(trimethylsilyl)ethyne (1) in the presence of H2PtCl6 and trans-formed into trans-1,2-bis(trimethylsilyl)ethene (40 by reaction with CH3MgI. The zinc chloride-catalyzed reaction of chlorine or bromine with 1,2-bis(trimethylsilyl)ethyne (5) leads to trans-1,2-dichloro- (6) or trans-1,2-dibromo-1,2-bis(trimethylsilyl)ethene (7). Further interaction of chlorine or bromine with 6 or 7 gave 1,1,2,2-tetrachloro- (8), 1,2-dibromo-1,2-dichloro- (10), and 1,1,2,2-tetrabromo-1,2-bis(trimethylsilyl)ethene (9). Elimination of chlorotrimethylsilane from 8 produced 1,1,2-trichloro-2-(trimethylsilyl)ethene (11).
    Notes: trans-1-(Chlordimethylsilyl)-2-(trimethylsilyl)ethen (3) konnte durch direkte Addition von Chlordimethylsilan (2) an Mono(trimethylsilyl)ethin (1) in Anwesenheit von H2PtCl6 gewonnen und mit CH3MgI in trans-1,2-Bis(trimethylsilyl)ethen (4) übergeführt werden. Die ZnCl2-katalysierte Umsetzung von Chlor bzw. Brom mit 1,2-Bis(trimethylsilyl)ethin (5) ergab trans-1,2-Dichlor-(6) bzw. trans-1,2-Dibrom-1,2-bis(trimethylsilyl)ethen (7). Weitere Einwirkung von Chlor bzw. Brom auf 6 und 7 lieferte 1,1,2,2-Tetrachlor- (8), 1,2-Dibrom-1,2-dichlor- (10) und 1,1,2,2-Tetrabrom-1,2-bis(trimethylsilyl)ethan (9). Durch Chlortrimethylsilan-Eliminierung entstand aus 8 1,1,2-Trichlor-2-(trimethylsilyl)ethen (11).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19781110912
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  • 8
    Electronic Resource
    Electronic Resource
    Synthese und Reaktionen von 3,4-Bis(trimethylsilyl)-1-pyrazolinen1,2) (1981)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 114 (1981), S. 2293-2299 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Reactions of 3,4-Bis(trimethylsilyl)-1-pyrazolines1,2)1,3-Dipolar cycloaddition of diazomethane to the trans-1,2-bis(trimethylsilyl)ethenes 1a-c affords the trans-3,4-bis(trimethylsilyl)-1-pyrazolines 2a-c. Thermolysis of 2a-c yields stereospecifically the trans-1,3-bis(trimethylsilyl)propenes 7b, c and d. The pyrazoline 2c is dehalogenated with Zn to give 3(5),4-bis(trimethylsilyl)pyrazole (8). Reaction of 2a with tetrachloro-o-benzoquinone and of 2b and c with methanolic NaOH leads to dehydrosilylation and elimination of halogenotrimethylsilane, respectively, with formation of the pyrazoles 9-11. 10 and 11 can be desilylated by treatment with acid to yield 12 and 13, resp.
    Notes: Durch die 1,3-dipolare Cycloaddition von Diazomethan an die trans-1,2-Bis(trimethylsilyl)ethene 1a-c werden die trans-3,4-Bis(trimethylsilyl)-1-pyrazoline 2a-c gewonnen. Die Thermolyse von 2a-c führt stereospezifisch zu den trans-1,3-Bis(trimethylsilyl)propenen 7b, c und d. Das Pyrazolin 2c wird durch Reaktion mit Zn zu 3(5),4-Bis(trimethylsilyl)pyrazol (8) dehalogeniert. Bei der Einwirkung von Tetrachlor-o-benzochinon auf 2a und von methanolischer NaOH auf 2b und c tritt Dehydrosilylierung bzw. Halogentrimethylsilan-Eliminierung zu den Pyrazolen 9-11 ein. 10 und 11 lassen sich protolytisch zu 12, 13 entsilylieren.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19811140625
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  • 9
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    Lack of tree layer control on herb layer characteristics in a subtropical forest, China (2011)
    Wiley
    Details
    Publication Date: 2011-07-28
    Description: Question: Knowledge of the interaction between understorey herb and overstorey tree layer diversity is mostly restricted to temperate forests. How do tree layer diversity and environmental variables affect herb layer attributes in subtropical forests and do these relationships change in the course of succession? Do abundance and diversity of woody saplings within the herb layer shift during succession? Location: Subtropical broad-leaved forests in southeast China (29°8′18″-29°17′29″N, 118°2′14″118°11′12″E). Methods: A full inventory of the herb layer including all plants below 1-m height was done in 27 plots (10 × 10 m) from five successional stages (〈20, 〈40, 〈60, 〈80 and ≥80 yr). We quantified the contribution of different life forms (herbaceous, woody and climber species) to herb layer diversity and productivity and analysed effects of environmental variables and tree layer diversity on these attributes. Results: Herb layer composition followed a successional gradient, as revealed by non-metric multidimensional scaling (NMDS), but diversity was not correlated to the successional gradient. There was no correlation of diversity across layers. Herb layer productivity was neither affected by tree layer diversity nor by herb layer diversity. Although abundance of woody species in the herb layer decreased significantly during succession, woody species contributed extraordinarily to herb layer species diversity in all successional stages. All environmental factors considered had little impact on herb layer attributes. Conclusions: The subtropical forest investigated displays an immense richness of woody species in the herb layer while herbaceous species are less prominent. Species composition of the herb layer shows a clear successional pattern, however, the presence or absence of certain species appears to be random.
    Print ISSN: 1100-9233
    Electronic ISSN: 1654-1103
    Topics: Biology
    Published by Wiley on behalf of The International Association for Vegetation Science (IAVS).
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  • 10
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    Linking above- and belowground traits to soil and climate variables: an integrated database on China's grassland species (2017)
    Wiley
    In: Ecology
    Details
    Publication Date: 2017-03-01
    Description: Knowledge of plant functional traits and trait-environment interactions is important for characterizing species strategies and understanding ecological processes. However, comprehensive field data on both above- and belowground traits, together with their environmental variables are scarce. Biome-scale studies are particularly lacking. Here we present two large-scale datasets that include functional traits of leaves and fine roots and their corresponding soil and climatic variables in China's grasslands. Leaf, fine root and soil samples were collected in three biogeographic regions: temperate grassland on the Inner Mongolia Plateau, alpine grassland on the Tibetan Plateau, and mountain grassland in the Xinjiang mountain areas. Field data were collected over two periods. The first dataset collected between 2003 and 2004 includes thirteen foliar traits (leaf mass per area, LMA; photosynthetic nitrogen use efficiency, PNUE; water use efficiency, WUE; stomatal conductance for water vapor, Gs; transpiration rate, TR; mass and area based photosynthetic capacity, Amass and Aarea; mass and area based carbon concentrations, Cmass and Carea; nitrogen concentrations, Nmass and Narea; and phosphorus concentrations, Pmass and Parea) for 170 species at 173 sites. The second dataset collected between 2006 and 2007 includes six sets of analogous traits for both leaves and fine roots (C, N and P concentrations; leaf thickness/root diameter; specific leaf area, SLA/specific root length, SRL; and tissue density) for 139 species at 82 sites, along with soil attributes (soil total and organic carbon, STC and SOC; total and available N, STN and SAN; total and available P, STP and SAP; pH, bulk density and moisture). Moreover, associated information was also gathered, including geographical location (latitude, longitude and altitude), climate (mean annual temperature, MAT; mean annual precipitation, MAP; growing season temperature, GST; growing season precipitation, GSP; potential evapotranspiration, PET; and actual evapotranspiration, AET) and site descriptions (vegetation and soil types). The datasets are unique because they integrate plant above- and belowground traits, climate and soil factors over broad regional, elevational, and taxonomic ranges in understudied regions (e.g. the Tibetan Plateau). This is the only database on China's grassland species for unrestricted global access. These datasets will make a valuable contribution to future large-scale trait-based ecological studies. This article is protected by copyright. All rights reserved.
    Print ISSN: 0012-9658
    Electronic ISSN: 1939-9170
    Topics: Biology
    Published by Wiley on behalf of The Ecological Society of America (ESA).
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