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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Digestive diseases and sciences 44 (1999), S. 691-696 
    ISSN: 1573-2568
    Keywords: ALCOHOL ; ALCOHOL ABUSE ; DUODENUM ; LYMPHOCYTES ; SECRETORY IgA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The aim of this study was to investigate whetherchronic alcohol abuse alters the number and distributionof mononuclear cells of the duodenal mucosa. The numberof common leukocyte antigen (CLA)-positive interepithelial lymphocytes (IEL), Blymphocytes (BL), IgAproducing plasma cells (IgA-PC),and macrophages (MP) was quantitatively evaluated inbiopsies of the duodenal mucosa of patients with alcoholabuse compared to subjects without alcohol abuse.Biopsies from the descending part of the duodenum wereobtained by endoscopy from two groups of patients withchronic alcohol abuse (group A1, abstinence 〈5 days, N = 21) and group A2 abstaining 5-10 days(N = 6). Twenty-five subjects without alcohol abuseserved as controls (C). Immunohistochemical staining wasdone by avidinbiotin- complex method. In addition, the content of IgA in the plasma cells wasdetermined by using a TV-densitometric method. Thenumber of B-lymphocytes in the lamina propria wasincreased by 37% in group A1 (P 〈 0.005). A distinctdecrease was observed in group A1 compared to C in thenumber of IEL that were CLA positive (–50%, P 〈0.025) and in the number of macrophages (–54%, P〈 0.025). In group A2 the differences in the number of B lymphocytes and macrophages were no longerseen. In A1, there was no significant change in thenumber of IgA-producing plasma cells or in the number ofinterepithelial lymphocytes counted after H&E staining compared to the controls. There was nodifference in content of IgA in the IgA-producing plasmacells. From these results it is concluded that chronicalcohol abuse significantly influences the gut-associated immune system, possibly byincreasing the permeability of the gut mucosa tomacromolecules that act as antigens.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 73 (1961), S. 408-408 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für die chemische Industrie 76 (1964), S. 535-535 
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 68 (1996), S. 1070-1070 
    ISSN: 0009-286X
    Keywords: Chemistry ; Industrial Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1. Nous avons établi l'isotherme de saturation de 25° pour le système ternaire Ca++—H+—NO3-—H2O. Le diagramme de solubilité se compose de 4 courbes qui représentent les solutions saturées des sels suivants: Ca(NO3)2,4H2O, Ca(NO3)2,3H2O, Ca(NO3)2,2H2O et Ca(NO3)2 anhydre.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 34 (1951), S. 231-243 
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Nous avons établi pour 25° le diagramme de solubilité du système quaternaire Ca++—NH4+—H+—NO3-—H2O.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 322 (1963), S. 297-309 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Alkyl-bis(dimethylamino) boranes can be obtained by solvolysis of alkyl boron dichlorides in dimethyl amine, or by alkylation of bis(dimethylamino)-chloro-borane with alkyl lithium. Their reactions with HCl, HBr and HJ was studied.
    Notes: Alkyl-bis(dimethylamino)((dimethylamino))borane erhält man bei der Dimethylaminolyse von Alkylbordichloriden oder bei der Alkylierung von Bis(dimethylamino)-chloroboran mit Alkyl-Lithium. Ihr Verhalten gegenüber den Halogenwasserstoffen HCl, HBr und HJ wurde untersucht.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 342 (1966), S. 297-306 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The RAMAN spectrum and the IR spectrum in the range 500-4000 cm-1 of liquid 1,8,10,9-triazaboradecaline were recorded. Major frequencies were assigned by comparing the data with the IR spectra of the corresponding N-dideuterated and 10B-labeled derivatives and by taking into consideration the expected vibrational spectrum of the compound. In accordance with the PMR spectrum, the structure of 1,8,10,9-triazaboradecaline as a bicyclic B-N-C system was confirmed; the bonding situation is discussed briefly.
    Notes: Vom 1,8,10,9-Triazaboradekalin wurde im flüssigen Zustand das RAMAN-Spektrum und das IR-Spektrum von 500-4000 cm-1 aufgenommen. Durch Vergleich mit den IR-Spektren der entsprechenden N-dideuterierten und 10B-markierten Verbindung und Berücksichtigung des Erwartungsspektrums wird eine Zuordnung zu den Grundschwingungen durchgeführt. In Übereinstimmung mit dem 1H-Kernresonanzspektrum wird die Struktur der Verbindung als bicyclisches Bor-Stickstoff-Kohlenstoff-System bestätigt. Die Bindungsverhältnisse werden kurz diskutiert.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 340 (1965), S. 329-336 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The reactions of aminoboranes with 1,3-diaminopropane and 3,3′-diaminodipropylamine are described; they offer ready access to boron-carbon-nitrogen heterocycles and to borazine derivatives. The reaction paths are discussed in terms of the planar arrangement of a N—B—N grouping.
    Notes: Die Reaktionen von Aminoboranen mit 1,3-Diaminopropan und 3,3′-Diaminodipropylamin werden beschrieben. Sie bieten leichten Zugang zu Bor-Stickstoff-Kohlenstoff-Heterocyclen und zu Borazolderivaten. Die Reaktionen lassen sich an Hand der ebenen Anordnung einer N—B—N-Gruppierung diskutieren.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 344 (1966), S. 329-336 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The infrared spectrum of 1,3,2-diazaboracyclohexane has been recorded and major absorptions were assigned. The nature of the chemical bonding in 1,3,2-diazaboracycloalkanes is discussed on the basis of spectroscopic data.
    Notes: Das Infrarot-Spektrum von 1,3,2-Diazaboracyclohexan wurde aufgenommen und die Hauptbanden zugeordnet. Die Auswertung spektroskopischer Daten von 1,3,2-Diazaboracycloalkanen erlaubt eine Diskussion der Bindungsverhältnisse der BNC-Heterocyclen.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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