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  • 1
    Electronic Resource
    Electronic Resource
    Diethylaluminum chloride-amine complex mediated aminolysis of activated cyclopropanes (1986)
    s.l. : American Chemical Society
    The @journal of organic chemistry 51 (1986), S. 1372-1374 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00358a045
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  • 2
    Electronic Resource
    Electronic Resource
    Facile and highly effective synthesis of (-)-mevalonic-2-d and -4-d acid lactones (1986)
    s.l. : American Chemical Society
    The @journal of organic chemistry 51 (1986), S. 1077-1079 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo00357a025
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  • 3
    Electronic Resource
    Electronic Resource
    Chelation-controlled synthesis of (.+-.)-muscarine (1980)
    s.l. : American Chemical Society
    The @journal of organic chemistry 45 (1980), S. 3375-3376 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01304a056
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  • 4
    Electronic Resource
    Electronic Resource
    Experimental investigation of the nonreciprocal phase shift of a transverse electric mode in a magneto-optic rib waveguide (1999)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 74 (1999), S. 2918-2920 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Magnetic garnet films of composition (Nd,Lu,Bi)3(Fe,Al,Ga)5O12 are grown by liquid-phase epitaxy on [111] oriented substrates of gadolinium gallium garnet. They have positive uniaxial anisoptropy and support lattices of parallel stripe domains. A monomode optical rib waveguide is prepared by photolithography and ion-beam etching parallel to the (112¯) direction, which is the preferred direction of the stripe domains. A magnetic domain pattern can be created such that a domain wall is located at the rib center while the adjacent walls stick to the flanks of the rib. At a wavelength of 1.3 μm a nonreciprocal phase shift of the guided fundamental transverse electric mode is observed. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.123965
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  • 5
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    Unknown
    Schellings Philosophie der Weltalter (1962)
    Meisenheim, etc. : Periodicals Archive Online (PAO)
    Zeitschrift für philosophische Forschung. 16:4 (1962:Okt./Dez.) 600 
    Details
    ISSN: 0044-3301
    Topics: Philosophy
    Notes: BERICHTE UND MITTEILUNGEN
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:0045-1962-016-04-000008
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  • 6
    Electronic Resource
    Electronic Resource
    Neural market structure analysis: Novel topology-sensitive methodology (2001)
    Bradford : Emerald
    European journal of marketing 35 (2001), S. 894-916 
    Details
    ISSN: 0309-0566
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Economics
    Notes: Over the last decade various parametric approaches toward modelling segmented perception-preference structures such as combined MDS and latent class procedures have been introduced. These methods, however, are not tailored for qualitative data describing consumers' redundant and fuzzy perceptions of brand images. A completely different method is based on topology-sensitive vector quantization (VQ) for consumers-by-brands-by-attributes data. It maps the segment-specific perceptual structures into bubble-pie-bar charts with multiple brand positions demonstrating perceptual distinctiveness or similarity. Though the analysis proceeds without any distributional assumptions, it allows for significance testing. The application of exploratory and inferential data processing steps to the same database is statistically sound and particularly attractive for market structure analysts. A brief outline of the VQ method is followed by a sample study with travel market data, which proved to be particularly troublesome for conventional processing tools.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/EUM0000000005730
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  • 7
    Electronic Resource
    Electronic Resource
    Cadmium-Untersuchungen im Bereich von Umwelt-, Boden- und Sorteneinflüssen bei Tabak sowie der Cadmium-Übergang in den Zigarettenrauch (1985)
    Springer
    European food research and technology 180 (1985), S. 306-311 
    Details
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Zusammenfassung Die in dieser Arbeit angeführten Ergebnisse basieren auf zehn Jahre dauernden Untersuchungen der staatlichen Tabakforschung Forchheim: Emissionen in die Umwelt können bei Tabak wie bei allen anderen Kulturpflanzen zu höheren Cadmium (Cd)-Gehalten führen. Geologische Bodenverhältnisse können den Cd-Transfer Boden/Pflanze beeinflussen. Genetisch bedingte Sortenunterschiede in der Cd-Aufnahme wurden sowohl im praktischen Tabakanbau als auch in speziellen Vegetationsversuchen nachgewiesen. Vergleiche zwischen in- und ausländischen Rohtabaken ergaben Cd-Gehalte in der gleichen Größenordnung. Eine Überprüfung repräsentativer Marken des deutschen Zigarettenangebotes (Filter-und Strangzigaretten) erbrachte 0.05 μg Cd/Zigarette als mittleren Transfer „Zigarette/Hauptstromrauch”, was einem mittleren Cd-Transfer von 5,1 entspricht.
    Notes: Summary The results as outlined in this paper are based on a 10-year-investigation by the Tobacco Research Institute, Forchheim. Emissions into the environment may lead to higher Cd-content of tobacco and other crops. Geological soil conditions may influence the soil/plant — Cd-transfer. Genetically dependent variety differences in Cd-uptake can be found in field as well as in greenhouse experiments. A comparison between domestic and foreign leaf tobaccos showed Cd-levels at the same order of magnitude. Analyses of German cigarette brands (with and without filter) demonstrated that 0.05 γ Cd/cigarette are transferred from cigarette tobacco into the mainstream smoke, corresponding to a mean transfer rate of 5.1%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01851275
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  • 8
    Electronic Resource
    Electronic Resource
    Maximizing the SDMA Mobile Radio Capacity Increase by DOA Sensitive Channel Allocation (1999)
    Springer
    Wireless personal communications 11 (1999), S. 63-77 
    Details
    ISSN: 1572-834X
    Keywords: wireless communication ; smart antennas ; SDMA ; channel allocation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Electrical Engineering, Measurement and Control Technology
    Notes: Abstract In a cellular mobile radio system an SDMA (Space Division Multiple Access) component can be implemented for the reuse of radio channels physically incorporated by time, frequency or code slots. Since SDMA is based on the spatial separation of different users operating in the same channel, a DOA (Direction of arrival) sensitive channel allocation scheme is essential for maximizing system capacity. In this paper we present the Eigenvector method, a computationally efficient algorithm to do this job. We also present simulation results on the Eigenvector method operating in a typical urban mobile radio cell. The simulated blocking probabilities are then used to predict the capacity increase which can be expected after adding an SDMA component to a conventional mobile radio system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018610130390
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  • 9
    Electronic Resource
    Electronic Resource
    Druckabhängigkeit des Restionisationsstromes in verschiedenen Gasen (1935)
    Springer
    The European physical journal 93 (1935), S. 22-34 
    Details
    ISSN: 1434-601X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Zusammenfassung Der Reststrom einer Ionisationskammer von 4 Litern Rauminhalt von der Kolhörsterschen Form wird in Abhängigkeit von der Art und dem Druck des Füllgases (Luft, Argon, Kohlensäure bis 15 Atm., Wasserstoff bis 5 Atm.) durch Versenken in 235 m Wassertiefe gemessen. In der Gestalt der erhaltenen Druck-Ionisationskurven kann man die Eigenschaften der für den Reststrom in Betracht kommenden Strahlung und der Ionisation in den verschiedenen Gasen erkennen. Ar gibt bei allen Drucken den höchsten Reststrom, Luft und insbesondere CO2 einen wesentlich geringeren. An Hand der gemessenen Kurven werden Richtlinien für möglichst günstige Füllungsbedingungen für Strahlungsapparate angegeben.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01341188
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  • 10
    Electronic Resource
    Electronic Resource
    Untersuchungen über Cäsium-137 und Strontium-90 aus dem Kernwaffenfallout am Beispiel des Tabaks (1983)
    Springer
    European food research and technology 176 (1983), S. 27-31 
    Details
    ISSN: 1438-2385
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Zusammenfassung In Proben von Tabaken des deutschen Anbaus und des Zigarettenmarktes wurden 42 bis 75 pCi Cäsium-137 und 702 bis 903 pCi Strontium 90 pro Kilogramm gefunden. Das Vorkommen dieser Radionuklide in Tabak ist auf den Fallout von Kernexplosionen zurückzuführen. Bei Berilcksichtigung mittlerer Transferraten dieser Radionuklide in das Hauptstromrauchkondensat und eines mittleren Zigarettenkonsums wurden Ganzkbrperinhalations Strahlendosen von 10−3 bis 10−4 mrem/Jahr und Person errechnet, die in der gleichen Größe wie die durch die Atemluft verursachten Strahlendosen liegen. Sie sind um Zehnerpotenzen kleiner als die Strahlenexposition durch die Ingestion dieser Radionuklide mit der Gesamtnahrung.
    Notes: Summary 42 to 75 pCi cesium-137 and 702 to 903 pCi strontium-90 per kg were found in samples of tobacco of German origin and from commercial cigarette. The presence of these radionuclides in tobacco is attributed to the fallout from nuclear explosions. Taking into consideration mean transfer rates of the radionuclides in the main stream smoke condensate and average consumption of cigarettes, whole body radiation doses for inhalation have been calculated to be in the range 10- s to 10−4 mrem/year and per person. This means, they are in the same order of magnitude as radiation doses by inhalation of ambient air. They are smaller by a factor of 10−4 than the radiation exposure due to ingestion of these radionuclides from the total diet.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01089342
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