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  • 1
    Electronic Resource
    Electronic Resource
    Der dexamethason-suppressions-test: Ein biologischer marker der endogenen depression? (1984)
    Springer
    European archives of psychiatry and clinical neuroscience 234 (1984), S. 137-146 
    Details
    ISSN: 1433-8491
    Keywords: Dexamethasone suppression test ; Psychiatric disorders ; Intervening variables ; Dexamethason-Suppressions-Test ; Psychiatrische Erkrankungen ; intervenierende Variable
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In den letzten Jahren wurde in zahlreichen Publikationen der Dexamethason-Suppressions-Test (DST) als geeignetes Instrument zur Diagnostik endogener Depressionen dargestellt. Eigene Untersuchungen an 333 psychiatrischen Patienten und 121 gesunden Kontrollpersonen sprechen gegen eine differentialdiagnostische Wertigkeit des DST. Diese Aussage wird durch neuere Befunde anderer Arbeitsgruppen gestützt. Diagnoseunabhängige Variable wie Schweregrad der Erkrankung, Gewichtsverlust, Schlafstörungen, situativer Stress, Medikamenten- und Alkohol-Entzug sowie die Pharmakokinetik von Dexamethason scheinen entscheidend das Testergebnis zu beeinflussen.
    Notes: Summary In the past few years there have been numerous publications, which have stressed the value of the Dexamethasone Suppression Test (DST) as a diagnostic marker of endonous depression. Our own studies in 333 psychiatric inpatients and 121 healthy subjects did not reveal a differential diagnostic use for the DST. This result is in good agreement with recent results published in the literature. Our own data demonstrate, however, that intervening variables, such as severity of illness, weight loss, sleep disturbances, situational stress, drug and alcohol withdrawal and the pharmacokinetics of dexamethasone, have an important influence on the DST results, regardless of the diagnostic classification.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00381220
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  • 2
    Electronic Resource
    Electronic Resource
    [3 + 2]-Cycloadditionen von Allylkationen - Synthese von Permethylcyclopenten und anderen hochsubstituierten CyclopentenenDiese Arbeit wurde von der Deutschen Forschungsgemeinschaft, dem Fonds der Chemischen Industrie und durch Chemikalienspenden der Hoechst AG und BASF AG unterstützt. Wir danken Dr. E. Wilhelm für die NMR-Spektren. (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 93 (1981), S. 1069-1070 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19810931207
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  • 3
    Electronic Resource
    Electronic Resource
    Ein Titan(IV)-Komplex mit zwei koordinativ gebundenen Wassermolekülen: [(π-C5H5)2 Ti(H2O)2](NO3)2 (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 476 (1981), S. 62-68 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A Titanium (IV) Complex with Two Coordinatively Bonded Water Molecules: [(π-C5H5)2Ti(H2O)2](NO3)2(π-C5H5)2Ti(NO3)2 and H2O react in acetone to form the diaquo complex [(π-C5H5)2-Ti(H2O)2](NO3)2 (A). An X-ray analysis shows the titanium atom to be nearly tetrahedrally coordinated. Mean values of distances: Ti—O 2.01 Å, Ti—Z 2.03 Å (Z = center of ring); angles: O—Ti—O 92.7°, Z—Ti—Z 133.6°. Anions and cations are joined by hydrogen bonds to form strands that run in the direction of the crystallographic a axis. A crystallizes in the orthorhombic space group Pnma with Z = 4 and lattice parameters at - 100°C a = 7.601(2), b = 13.458(4) and c = 13.139(4) Å.
    Notes: (π-C5H5)2Ti(NO3)2 reagiert mit Wasser in Aceton unter Bildung des Diaquokomplexes [(π-C5H5)2Ti(H2O)2](NO3)2 (A). Eine Röntgenstrukturanalyse ergibt, daß das Ti-Atom eine annähernd tetraedrische Koordination besitzt. Mittelwerte der Abstände: Ti—O 2,01 Å, Ti—Z 2,03 Å (Z = Ringzentrum); Winkel: O—Ti—O 92, 7°, Z—Ti—Z 133,6°. Die Anionen und Kationen sind entlang der kristallographischen a-Achse durch Wasserstoffbrücken zu Strängen verknüpft. A kristallisiert in der orthorhombischen Raumgruppe Pnma mit Z = 4 und den Gitterkonstanten bei — 100°C a = 7,601(2), b = 13,458(4) und c = 13,139(4) Å.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814760508
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  • 4
    Electronic Resource
    Electronic Resource
    Strukturchemie titan-organischer Verbindungen: Die Struktur von [(π-C5H5)2 Ti(NO3)]2O (1981)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 479 (1981), S. 113-118 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Structural Chemistry of Organotitanium Compounds: Structure of [(π-C5H5)2Ti(NO3)]2OCareful hydrolysis of (π-C5H5)2Ti(NO3)2 in tetrahydrofuran yields crystals of [(π-C5H5)2Ti(NO3)]2O (A). Crystal data of A: monoclinic, space group P21/c; lattice constants: a = 12.656(4), b = 10.181(5), c = 16.197(3) Å, ß = 93.57(3)º, Z = 4. As an X-ray analysis shows, the NO3 groups act as monodentate ligands with Ti—O distances of 2.085 and 2.059 Å. The ligands are arranged in a nearly tetrahedral way around the Ti atoms. The bond angle at the bridging O atom is 171.8º.
    Notes: Bei der vorsichtigen Hydrolyse von (π-C5H5)2Ti(NO3)2 in Tetrahydrofuran entsteht der Zweikernkomplex [(π-C5H5)2Ti(NO3)]2O (A) Kristalldaten von A: monoklin, Raumgruppe P21/c; Gitterkonstanten: a = 12,656(4), b = 10,181(5), c = 16,197(3) Å, ß = 93,57(3)º und Z = 4. Eine Röntgenstrukturanalyse ergibt, daß die Nitratgruppen als einzähnige Liganden mit Ti—O-Abständen von 2,085 und 2,059 Å fungieren. Die Ti-Atome weisen eine annähernd tetraedrische Koordination auf. Der Winkel am Brücken-O-Atom beträgt 171,8º.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19814790813
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  • 5
    Electronic Resource
    Electronic Resource
    Microcomputers in small injection molding machines - operation and design (1984)
    Hoboken, NJ : Wiley-Blackwell
    Advances in Polymer Technology 4 (1984), S. 51-60 
    Details
    ISSN: 0730-6679
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Modern, trend-setting small injection molding machines should be designed so that they open up new applications to the plastics processor through utilization of microelectronics. In the sector of control, it would be equivalent to stagnation if only the familiar functions were realized with modern control circuits of a higher integration level and if the possibilities of these modules were not utilized to simplify operation, to expand the technological possibilities, and to illustrate the sequences of processes. The mechanical and hydraulic designs should be adjusted to these requirements.The design and extent of the electronic control system should be such as to ensure an economically reasonable relation between extra price and additional benefit - a basic requirement for offering standard supplies.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/adv.1984.060040105
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  • 6
    Electronic Resource
    Electronic Resource
    Abbau einiger Harnsäureglykol-äther durch Lauge (1925)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 58 (1925), S. 2740-2747 
    Details
    ISSN: 0365-9631
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19250581207
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