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  • 2005-2009
  • 1995-1999
  • 1970-1974  (4)
  • 1860-1869
  • 1972  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of toxicology 29 (1972), S. 73-84 
    ISSN: 1432-0738
    Keywords: 2-Chloroethyl Isocyanate ; Generation of Vapour Atmospheres ; Inhalation Toxicity ; Threshold Limit Values ; orter: 2-Chloräthylisocyanat ; Erzeugung von Dampf-Luft-Gemischen ; Inhalationstoxicität ; Maximale Arbeitsplatzkonzentration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die akute orale Toxicität von 2-Chloräthylisocyanat (CAIC) beträgt 396 mg/kg für männliche Ratten und 630 mg/kg für weibliche Mäuse. Am Kaninchenauge löste die außerordentlich geringe Menge von 5μl CAIC schwere Reizerscheinungen vor allem an der Conjunctiva aus. Auch die irritative Wirkung an der Kaninchenhaut war beträchtlich. In inhalationstoxikologischen Versuchen, deren Methodik durch Beschreibung eines einfachen Verfahrens zur Beladung von Luft ergänzt wurde, erwies sich CAIC als Reizgas ohne erkennbare systemischtoxische Wirkung. Die LC50 für Ratten beträgt bei sechsstündiger Exposition 6,3 ppm. In zwei subakuten Versuchen über 10 Tage mit Konzentrationen von 3,1 und 3,8 ppm überlebten alle Ratten. Zehn Tage nach Versuchsende wurden außer im Respirationstrakt (Tracheobronchitis. Bronchopneumonie) histologisch keine pathologischen Veränderungen gefunden. Es wird eine maximale Arbeitsplatzkonzentration (MAK) von 0,02 ppm vorgeschlagen.
    Notes: Abstract The acute oral toxioity of 2-chloroethyl isocyanate (CAIC) is 396 mg/kg for male rats and 630 mg/kg for female mice. The extremely small quantity of 5 μl CAIC caused severe irritation in the eyes of rabbits, particularly of the conjunctiva. The skin was also affected considerably. Inhalation experiments, involving a new version of a proven method for generating air-vapour mixtures, produced no evidence of systemic toxicity, but let CAIC be classified as an irritant vapour to the respiratory tract. The LC50 for rats is 6.3 ppm after exposure for 6 h, while rats in two experiments involving ten-day exposures to vapour concentrations of 3.1 and 3.8 ppm, respectively, survived. After a fortnight's withdrawal following each experiment, histological examinations showed tracheobronchitis and bronchopneumonia but no pathological change in any other organ examined. A threshold limit value (TLV) of 0.02 ppm is suggested.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of orthopaedic and trauma surgery 73 (1972), S. 33-46 
    ISSN: 1434-3916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Nach konsequenter Untersuchung vieler Coxa valga-Fälle gemäß physikalischen und biologischen Gesetzen sowie morphologischen Standpunkten muß man als Hauptgestalter des Schenkelhals-Schaft-Winkels das periostale Wachstum betrachten und nicht, wie bis jetzt angenommen, das epiphysäre Längenwachstum.
    Notes: Summary Consistent investigation and analysis of cases of “Coxa valga”, as well as careful consideration of biological and physical laws should lead to the conclusion that the formation of the CCD-angle is mainly due to the growth of the bone along its width “growth caused by the periosteum” rather than its elongation.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of wildlife research 18 (1972), S. 185-212 
    ISSN: 1439-0574
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 55 (1972), S. 2934-2940 
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The synthesis of 3, 4-dehydro-2-(3-indolylmethyl)-1-methyl-piperidine-4-carboxylic acid, a new dulcifiant of the indole series being twice as sweet as saccharine, is described.
    Type of Medium: Electronic Resource
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