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  • 1
    ISSN: 1433-8580
    Keywords: Renal transplantation ; Graft rejection ; Platelet thrombi ; Antiaggregating drugs
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect of antiaggregating agents - acetylsalicyclic acid (ASA) and dipyridamol - on the rejection of allotransplanted canine kidneys in presensitized animals were studied. Blood flow dropped more markedly in the control group than in the group treated with ASA and dipyridamol. 24 hours after transplantation the blood flow in this group was significantly higher than in the control group (p 2,5 %) and in the third group treated with dipyridamol alone. The cellular rejection started earlier and was more pronounced in the control group. Only in this group vascular rejection and microthrombi were demonstrated. Urine output ceased 24 to 60 hours after transplantation. The immunosuppressive, antiphlogistic and platelet antiaggregating effect of the combined ASA and dipyridamol therapy is thought to be responsible for the better results in this group. In this experimental model the combined treatment of ASA and dipyridamol results in a later onset of cellular rejection, in better blood-flow of the kidney and later onset of anuria.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1433-8580
    Keywords: Renal transplantation ; Graft rejection ; Platelet thrombi ; Antiaggregating drugs ; Nierentransplantation ; Transplantatabstoßung ; Thrombocytenthromben ; Thrombocytenaggregationshemmende Pharmaka
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Thrombocytenaggregationshemmende Pharmaka — Acetylsalicylsäure und 2-Piperazinyl-4-thiomorpholino-pyrido(3,2-d)-pyrimidin-Sulfattrihydrat—werden in ihrer Wirkung auf Abstoßungsreaktionen bei allotransplantierten Nieren an Hunden untersucht. Klinisch findet sich keine Wirksamkeit der Medikamente, dagegen zeigen interessanterweise die histologischen Befunde bei der Acetylsalicylsäuregruppe eine verminderte Abstoßungsreaktion.
    Notes: Summary The effects of anti-thrombotic drugs—Acetyl-salicylic-acid and 2-Piperazinyl-4-thiomorpholino-pyrido(3,2-d)-pyrimidin-sulfat-trihydrat—on rejection reactions of renal allografts in dogs have been studied. From the clinical point of view no effectiveness of the two drugs can be found, whereas the histological findings do clearly show diminished rejection reactions in the Acetylsalicylic-acid group.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 9 (1952), S. 581-585 
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Chichester [u.a.] : Wiley-Blackwell
    Surface and Interface Analysis 16 (1990), S. 331-334 
    ISSN: 0142-2421
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Physics
    Notes: The hydrogen concentration profiles of electrochromic multilayer systems produced by evaporation have been determined by means of nuclear reaction analysis. The H content of individual oxidic materials was found to be larger than for single films, especially for SiO2. The time-dependent H uptake under various ambient conditions was investigated. Systems produced by ion plating were also profiled for hydrogen.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 65 (1993), S. 1116-1117 
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    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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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 68 (1996), S. 1100-1101 
    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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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 70 (1998), S. 1198-1199 
    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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  • 8
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 14 (1979), S. 244-253 
    ISSN: 0030-493X
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The very complex isomerization patterns of methoxy and carbomethoxy substituted cycloalkanes (3- to 7-membered rings) have been investigated using collisional activation, metastable ion characteristics and field ionization kinetics. The extent of isomerization depends on both the ring size and the substituent. Irrespective of the electronic properties of the substituent, ring opening involves exclusively the C-1—C-2 bond whereby linear alkene radical cations are formed. In the case of OCH3- and COOCH3 substituents the position of the resulting double bond (terminal or α,β-unsaturated) is determined more by the ring size of the precursor molecules and less by the electronic properties of the substituents. Contrary to these findings alklyl substituted cycloalkanes (3- to 5-membered rings) rearrange exclusively to terminal alkene radical cations. The barrier for double bond isomerization seems to be substantially influenced by substituents.
    Notes: Unter Benutzung mehrerer Techniken, wie Stoßaktivierung, Charakteristik metastabiler Ionen und Feldionisationskinetik, wird das äußerst komplexe Isomerisierungsverhalten von methoxy- und caarbomethoxysubstituierten Cycloalkanen (drei-bis siebengliedrege Ringe) analysiert. Das Ausmaß der Isomerisierung hängt sowohl von der Ringgröße als auch vom Substituenten ab, während die Ringöffnung unabhängig von den elektronischen Eigenschaften der Substituenten immer die C-1—C-2-Bindung betrifft. Hierbei werden ausschließlich lineare Alken-Radikalkationen erzeugt. Bei OCH3- und COOCH3-Substituenten wird die Lage der resultierenden Doppelbindung terminal oder α,β-ungesättigt hauptsächlich durch die Ringgröße des Cycloalkan-Molekülions und weniger durch den Substituenten beeinfluß. Alkylsubstituierte Cycloalkane (drei- bis fünfgliedrige Ringe) lagern sich allerdings nur zu terminalen Alken-Radikalkationen um. Die Barriere der Doppelbindungswanderung scheint vom Substituenten abhängig zsu sein.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Chalcogenide Glasses with Organic Components. V. The Reactivity in the Glass-forming Systems Selenium, Arsenic, Bromine, 4,4′-Bis(selenenylbromido)azobenzene and Selenium, Arsenic, Iodine, 4,4′-Bis(diiodarsa)biphenyleneSe—As—Br glasses and 4,4′-bis(selenenylbromido)azobenzene react in the solid state. In this case arsenic is an acceptor for bromine, and azobenzene groups will be linked via poly-selenide groups with the glass matrix. The reaction is proved by DTA. At elevated temperatures, the selenium-carbon bond will be replaced by a carbon-bromine link yielding 4,4′-dibromazobenzene. Solid 4,4′-bis(diiodarsa)biphenylene shows a similar reaction with Se—As—I above TG. The pyrolysis takes place at higher temperatures.
    Notes: Gläser des Systems Se—As—Br reagieren im festen Zustand mit 4,4′-Bis-(selenenylbromido)azobenzol. Dabei wirkt Arsen als Bromakzeptor, und die Azobenzolgruppen werden über Polyselenidgruppen mit der Glasmatrix verknüpft. Die Reaktion wurde differentialthermoanalytisch verfolgt. Bei höheren Temperaturen werden die Selen-Kohlenstoff-Bindungen durch Brom-Kohlenstoff-Bindungen ersetzt. 4,4′-Dibromazobenzol kann durch Sublimation isoliert werden. Festes 4,4′-Bis(dijodarsa)biphenyl reagiert in analoger Weise mit unterkühlten Selen-Arsen-Jod-Schmelzen.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie in unserer Zeit 29 (1995), S. 337-337 
    ISSN: 0009-2851
    Keywords: Chemistry ; Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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