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  • 1
    Electronic Resource
    Electronic Resource
    Oxidized aristolane sesquiterpenes from Aristolochia debilis
    Amsterdam : Elsevier
    Phytochemistry 23 (1984), S. 1647-1649 
    Details
    ISSN: 0031-9422
    Keywords: 1(10) aristolenal-(15) ; 1α-hydroxy-9-aristolenone-(8). ; 9α-hydroperoxy-1(10) aristolenone-(2) ; Aristolochia debilis ; Aristolochiaceae ; aristolanes ; sesquiterpenes ; structure elucidation
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)83460-3
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Comparative rheology of nucleated and non-nucleated red blood cells (1981)
    Springer
    Pflügers Archiv 390 (1981), S. 283-287 
    Details
    ISSN: 1432-2013
    Keywords: Nucleated erythrocytes ; Blood rheology ; Viscosity ; Hematocrit ; Capillary circulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The flow properties of nucleated avian (duck) red cell suspensions were determined in narrow glass capillaries (internal diameter 5–11 μm) perfused at constant pressure. Measurements were carried out of cellular and suspending fluid flow velocity and dynamic (tube) hematocrit. Comparison with previous measurements on human erythrocyte suspensions showed that the dynamic hematocrit reduction (Fahraeus effect) of avian cell suspensions was significantly more sensitive to changes of hematocrit than observed on the human cells. It was in addition found that the Fahraeus effect is the dominating phenomenon determining the viscosity of the nucleated cell suspensions, in contrast to suspensions of non-nucleated human red cells. Furthermore, the apparent viscosity of the nucleated cell suspensions is significantly higher than that of human blood at equal capillary diameter and tube hematocrit. In the living capillary bed of birds, the unfavourable rheological properties of the nucleated red cells could be compensated for by a low capillary hematocrit and/or a higher capillary density compared to mammalian species.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00658277
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Kristallstruktur der Orthoferrite der Seltenen Erden. III. Strukturuntersuchung am TmFeO3 (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 356 (1968), S. 163-171 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: X-ray diffractometer data from powdered thulium orthoferrite, TmFeO3, were used for the determination of the crystal structure by least squares methods. The data were corrected for impurity phases and for anomalous dispersion. Precise lattice constants were determined by calibration with admixed high purity silicon powder.
    Notes: Röntgenpulverdiagramme liefern Daten zur Strukturbestimmung des Thuliumorthoferrits. Aus den Integralintensitäten der Reflexe werden nach Berücksichtigung von Fremdphasenüberlagerungen die Koordinaten der Ionen in der Elementarzelle durch Ausgleichsrechnung bestimmt. Die genauen Gitterkonstanten werden durch Vermessung mit Referenzlinien von zugemischtem reinstem Silicium ermittelt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683560307
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  • 4
    Electronic Resource
    Electronic Resource
    Bestimmung der Kristallstruktur der Selenate MSeO4 (M—Mn, Co, Ni) durch Röntgen- und Neutronenbeugung (1968)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 358 (1968), S. 125-137 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The crystal structures of orthorhombic selenates MSeO4 (M — Mn, Co, Ni) have been refined by least square methods from X-ray and neutron diffraction powder data.The metal atoms are octahedrally surrounded by oxygen at an average distance of 2.20 Å. The mean distance in the SeO4 tetrahedron is 1.65 Å.
    Notes: Aus Intensitäten von Pulverdiagrammen (Röntgen- und Neutronenbeugung) wurden die Kristallstrukturen der orthorhombischen Selenate MSeO4 (M — Mn, Co, Ni) durch Ausgleichsrechnung verfeinert. In diesen Verbindungen ist das Selen tetraedrisch von Sauerstoff umgeben; der mittlere Selen-Sauerstoff-Abstand beträgt 1,65 Å. Die Metallatome haben sechs Sauerstoffatome in oktaedrischer Anordnung als nächste Nachbarn; der mittlere Abstand zwischen Metall und Sauerstoff beträgt 2,20 Å.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19683580304
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  • 5
    Electronic Resource
    Electronic Resource
    Kristallstrukturanalyse und Neutronenbeugung ITeil I: Neutronenbeugung an Atomkernen.  -  Teil II: Neutronenbeugung und magnetische Struktur; wird demnächst in dieser Zeitschrift erscheinen. (1969)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 81 (1969), S. 307-320 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Neutronenbeugung als Methode zur Kristallstrukturbestimmung ist eine wertvolle Ergänzung der Röntgenbeugungsmethoden. Nach einer Beschreibung ihrer Grundlagen und ihrer Entwicklung wird die weitergehende Aussagefähigkeit von Neutronenbeugungsexperimenten an Beispielen demonstriert: bei der Strukturanalyse von Benzol, Oxalsäuredihydrat, Vitamin B12, Ferriten, Metallcyaniden und -carbiden,  -  bei der Untersuchung von Wasserstoffbrücken, von ferroelektrischen Effekten sowie der thermischen Bewegung in Kristallen. Auch die anomale Dispersion bei der Beugung von Neutronen wird diskutiert.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19690810903
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  • 6
    Electronic Resource
    Electronic Resource
    Kristallstrukturanalyse und Neutronenbeugung IITeil II: Neutronenbeugung und magnetische Strukturen. - Teil I: Neutronenbeugung an Atomkernen [1]. (1969)
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 81 (1969), S. 984-995 
    Details
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Dieser zweite Teil des Aufsatzes „Kristallstrukturanalyse und Neutronenbeugung“ behandelt die Beugung von Neutronen an magnetisch geordneten Kristallen. Die Neutronenbeugung ist derzeit die einzige zuverlässige Methode zur Bestimmung der Größe, der Richtung und der räumlichen Verteilung von magnetischen Momenten in kristallinen Stoffen. Da die magnetischen Momente im wesentlichen von den ungepaarten Elektronen herrühren, kann so die Verteilung dieser Elektronen im Kristall gemessen werden.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ange.19690812305
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  • 7
    Electronic Resource
    Electronic Resource
    Eine direkte Benzolringspaltung ohne Abbau. I (1914)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 403 (1914), S. 119-167 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19144030202
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  • 8
    Electronic Resource
    Electronic Resource
    Eine direkte Benzolringspaltung ohne Abbau, II (1918)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 416 (1918), S. 1-20 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.19184160102
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  • 9
    Electronic Resource
    Electronic Resource
    Crystal Structure Analysis by Neutron Diffraction IIPart II: Neutron Diffraction and Magnetic Structures. - Part I: Neutron Diffraction at Atomic Nuclei [1]. (1969)
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 8 (1969), S. 950-961 
    Details
    ISSN: 0570-0833
    Keywords: Crystal structure analysis ; Structure elucidation ; Neutron diffraction ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: This second part of the article “Crystal Structure Analysis by Neutron Diffraction” deals with the diffraction of neutrons by magnetically ordered crystals. Neutron diffraction is at present the only reliable method for the determination of the magnitude, direction, and spatial distribution of magnetic moments in crystalline substances. Since the magnetic moments are essentially due to the unpaired electrons, the distribution of these electrons in the crystal can be measured in this way.
    Additional Material: 15 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/anie.196909501
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