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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 349 (1979), S. 557-558 
    ISSN: 1435-2451
    Keywords: Sunken drain ; Internal biliary tract drainage ; Malignant obstructive jaundice ; Verlorener Drain ; Innere Gallengangsdrainage ; Maligner Verschlußikterus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei über 4000 Gallenwegs-Eingriffen wurde bei 35 Kranken der verlorene Drain eingelegt 3mal wegen einer Carcinominfiltration von außen, 27mal wegen eines proximalen Hepaticuscarcinoms und 5mal wegen eines Echinococcus multilocularis. Die postoperative Letalität beträgt 8,5 %. Die Nachuntersuchungen zeigen, daß etwa ein Viertel der Carcinomträger innerhalb von 6 Monaten an der Grundkrankheit verstorben ist, daß aber auch 5 Patienten über die Beseitigung der Abflußbehinderung ihre schwere Carcinomkrankheit bis zu 21/4 Jahre überstanden haben. Bessere Erfolge bringt der verlorene Drain beimEchinococcus alveolaris. Hier wurden mehrjährige beschwerdefreie Intervalle beobachtet.
    Notes: Summary In over 4000 interventions on the biliary tract a sunken drain was inserted in 35 patients: 3 times because of carcinomatous infiltration from outside, 27 times because of a proximal hepatic carcinoma and 5 times because ofEchinococcus multilocularis. The postoperative mortality was 8.5 %. Follow-up examinations show that a little more than a quarter of carcinoma patients died of the primary disease within 6 months but also that 5 patients survived their serious cancer disease for up to 21/4 years after the removal of the drainage obstruction. The sunken drain gives better results in Echinococcus alveolaris. Trouble-free intervals of many years were observed.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 355 (1981), S. 239-239 
    ISSN: 1435-2451
    Keywords: Benign obstructive jaundice ; Malignant obstructive jaundice ; Operability ; Preoperative diagnostics ; Benigner Verschluß-Ikterus ; maligner Verschluß-Ikterus ; Operationsindikationen ; Präoperative Diagnostik
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der Verschluß-Ikterus ist ein Symptom einer ernsten Erkrankung; ihm liegt ein multifaktorielles Geschehen zugrunde. Die für die erfolgreiche Therapie so notwendige Frühdiagnose ist oft nicht möglich, da es meist nur unbestimmte Frühsymptome gibt. Die einzig erfolgversprechende Therapie ist die kurative Operation. Dies bedeutet beim benignen Verschluß die Frühsanierung und beim malignen Verschluß die radikale Tumorentfernung.
    Notes: Summary Obstructive jaundice is a sign of serious disease; it is based on multifactorial events. Early diagnosis, which is of vital importance to successful treatment, is often impossible since in most of the cases there are only nonspecific prodromal symptoms. The only treatment promising success is the curative operation. In benign obstruction this means early sanitation, and in malignant obstruction eradication of the tumor.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Langenbeck's archives of surgery 355 (1981), S. 291-298 
    ISSN: 1435-2451
    Keywords: Malignant obstructive jaundice ; Operability ; Surgical management ; Maligner Verschluß-Ikterus ; Operationsindikation ; chirurgische Therapie
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Der maligne Verschluß-Ikterus ist ausnahmslos eine lebensbedrohliche Erkrankung. Bei fehlender Frühsymptomatik ist fast ein Viertel der Kranken primär vollkommen inoperabel, und nur bei einem Fünftel der Tumor resezierbar. Auch bei operablen Fällen sind die Erfolge bescheiden; beim Papillencarcinom lassen sich die höchsten und längsten Überlebenszeiten erreichen. Die wesentliche Chance besteht in der entscheidenden Verbesserung und Verkürzung der präoperativen Diagnostik.
    Notes: Summary Malignant obstructive jaundice is invariably a disease endangering life. Since there are no prodromal symptoms, nearly one-fourth of the patients are primarily inoperable when seen, and in one-fifth is the tumor resectable. Even in operable cases success is moderate; the highest and longest rates of survival can be achieved with papillary carcinoma. A substantial chance lies in the decisive improvement and shortening of preoperative diagnostics.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 23 (1989), S. 193-199 
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Wie alle lebenden Organismen befinden sich Pflanzen in einem Dilemma: Einerseits sind Schwermetall-Ionen entscheidend für ihre optimale Entwicklung, auf der anderen Seite führen zu hohe Schwermetallkonzentrationen zu Vergiftungserscheinungen. Es wird beschrieben, mit welchem Chemismus sich Pflanzen (und ein Teil der Pilze) vor zuviel Schwermetall-Ionen schützen.
    Additional Material: 6 Ill.
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  • 5
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 13 (1969), S. 535-540 
    ISSN: 0021-8995
    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 , Physics
    Notes: Polyesters based on tetrabromophthalic anhydride are self-extinguishing in the range of 8-12% bromine content and nonburning at higher levels of the latter. An increase in bromine content results in higher flexural and tensile strenght and flexural modulus, while impact resistance is slightly reduced. Mechanical Properties vary with bromine content in the 0-12% range and remain practically unaffected at higher levels up to 23%.
    Additional Material: 5 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 594 (1955), S. 21-32 
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1979 (1979), S. 1205-1211 
    ISSN: 0170-2041
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Stereochemistry of 3,3′-(1,2-Diethylethylene)diphenols1-Chloro-1-(3-methoxyphenyl)propane 5 was converted by C-C coupling in to a mixture of dia-stereomeric 3,4-bis(3-methoxyphenyl)hexanes 6, which could be separated by crystallization into the meso- and rac-compounds 6a and 6b, respectively. After ether cleavage meso-3,3′-(1,2-di-ethylethylene)diphenol and rac-3,3′-(1,2-diethylethylene)diphenol (2a and 2b) were obtained; the latter was resolved via the diastereomeric (+)- and (-)-3,3′-(1,2-diethylethylene)diphenyl-3,4-bis[3-D-(+)-3-bromo-2-oxo-8-bonanylsulfonates] (7) into (+)-3,3′-(1,2-diethylethylene)diphenol and (-)-3,3′-(1,2-diethylethylene)diphenol [(+)-2b and (-)-2b]. The absolute configuration of the optical enantiomers could be established by means of oxidative degradation of (+)-2b.
    Notes: Aus 1-Chlor-1-(3-methoxyphenyl)propan (5) wurde durch C-C-Verknüpfung das Diastereomerenpaar 3,4-Bis(3-methoxyphenyl)hexan 6 erhalten. Durch Kristallisation konnten hieraus die meso- und die rac-Verbindungen 6a bzw. 6b isoliert warden. Die Spaltung der Ether führte zu meso-3,3′-(1,2-Diethylethylen)diphenol und rac-3,3′-(1,2-Diethylethylen)diphenol (2a bzw. 2b). Verbindung 2b wurde über die diastereomeren (+)- und (-)-3,3′-(1,2-Diethylethylen)diphenyl-3,4-bis[3-D-(+)-3-brom-2-oxo-8-bornanylsulfonate] (7) in (+)-3,3′-(1,2-Diethylethylen)diphenol und (-)-3,3′-(1,2-Diethylethylen)diphenol [(+)-2b bzw. (-)-2b] aufgetrennt. Die absolute Konfiguration der optischen Antipoden wurde durch oxidativen Abbau von (+)-2b ermittelt.
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  • 8
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Chemistry of Sulfur Diimides, III. Reactions of Aromatic Bis-amino Compounds with N-Sufinyl Sulfonamides and N,N'-Bis-arylsulfonyl-sulfur DiimidesBifunctional amino compounds 1 react with N-sulfinyl-p-toluene sulfonamide (2) and N,N'-bis-[p-toluenesulfonyl]-sulfur diimide (3) to give the derivatives 4-8, depending on the nature of X. By reaction with 2,3-dimethyl-1,3-butadiene the cyclic sulfur diimide 8b gives the adduct 11, the alkaline cleavage of which yields the pyrrole 12.
    Notes: Bifunktionelle Aminoverbindungen 1 reagieren mit N-Sulfinyl-p-toluolsulfonamid (2) und N.N'-Bis-[p-toluolsulfonyl]-schwefeldiimid (3) in Abhängigkeit von der Art der Gruppe X zu den Derivaten 4-8. Das cyclische Schwefeldiimid 8b liefert mit 2.3-Dimethyl-1.3-butadien das Addukt 11, dessen alkalische Spaltung zum Pyrrol 12 führt.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0044-8249
    Keywords: Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
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  • 10
    ISSN: 0173-0835
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Aldoses, ketoses and uronic acids were derivatized successfully within 15 min at a temperature of 90°C by reductive amination with 4-aminobenzonitrile. Subsequently, the derivatives were separated as their borate complexes by capillary zone electrophoresis, using 175 mM borate buffer, pH 10.5, as carrier. The electrophoretic mobilities were determined by the complex stability, which was found to depend on the number of hydroxyl groups on any given carbohydrate derivative, the presence of substituents, and most strongly on the configuration of the vicinal hydroxyl groups at C-3 and C-4 in aldoses and uronic acids, and with regard to ketoses on those at C-4 and C-5. Time of analysis could be reduced considerably by the use of micellar electrokinetic chromatography, which separated 4-aminobenzonitrile sugar derivatives on the basis of their differential partitioning into an electroendosmotically driven aqueous phase and into sodium dodecyl sulfate micelles. Optimum resolution was achieved with a Tris-phosphate buffer, pH 7.5, containing 100 mM of sodium dedecyl sulfate. The method made it possible to resolve several carbohydrates which had not been resolved successfully by means of capillary zone electrophoresis, such as glucose and fructose. Moreover, separation selectivity could be adjusted by varying the capillary temperature. Finally, on-column UV monitoring at 285 nm allowed the detection of glucose with a lower mass detection limit of 1 fmol and a concentration sensitivity of 0.3 μM.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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