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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 93 (1988), S. 50-54 
    ISSN: 0942-0940
    Keywords: Optic nerve lesion ; operative treatment ; conservative treatment ; head injury
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The problems of therapy are described by comparing a retrospective (17 cases) to a prospective (12 cases) study of cases of traumatic lesions of the optic nerve. Intensive cooperation between specialists and a quick diagnosis facilitate the decision regarding treatment and lead to better results. Indication for surgical treatment — transcranial or transethmoidal approach — should be confined to posttraumatic deterioration of optic nerve function in combination with fractures of the optic canal, and to its deterioration in spite of proper conservative treatment — shock treatment and cortisone infusions-.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of orofacial orthopedics 47 (1986), S. 429-445 
    ISSN: 1615-6714
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The present paper describes the procedure of the “Viennese Concept” in the treatment of cleft lip and palate: 1. Prolabium closure at the end of the first week of life, 2. velorrhaphy at the end of the first year of life, 3. rehabilitation of upper lip and nose at the end of the fourth year, 4. palatorrhaphy at the end of the sixth year of life. Conservative orthodontic treatment is only begun following velorrhaphy with a maxillary cover plate and continues until closure of the hard palate. The goals of the “Viennese Concept” are as follows: 1. Normal development of the maxilla and of the middle parts of the face, 2. normalized function of the orofacial and velar muscles in due time to provide normal speech and auditory development, 3. early reduction of aesthetic impairments in order to avoid late psychological sequelae. To obtain objective assessment of maxillary growth measurements on models were done. The results show unimpaired growth of the maxilla up to the age of twelve.
    Abstract: Résumé La publication suivante décrit le procédé du traitement des fentes labiales et palatines selon le «Concept de Vienne»: 1. La fermeture uniquement du prolabium à l'âge d'une semaine, 2. velorrhaphie à la fin de la première année, 3. correction esthétique de la lèvre supérieure et du nez à la fin de la quatrième année et 4. palatorrhaphie à la fin de la sixième année. Ce n'est qu'après la fermeture du voile du palais (velorrhaphie) que le traitement orthodontique commence avec une plaque supérieure et se poursuit jusqu'à la fermeture de la voûte du palais (palatorrhaphie). Les buts du «Concept de Vienne» en sont les suivants: 1. Développement normal du maxillaire supérieur, 2. fonction normalisée à temps des muscles orofaciaux et vélaires pour l'évolution du langage et de l'ouïe, 3. amélioration à temps de l'aspect esthétique du patient pour éviter des troubles psychiques ultérieurs dans la vie. On a effectué des mesures sur les modèles pour contrôler objectivement le développement du maxillaire. Les résultats indiquent une croissance régulière jusqu'à l'âge de douze ans.
    Notes: Zusammenfassung Die vorliegende Arbeit beschreibt die Vorgangsweise des „Wiener Konzeptes” zur Behandlung von Lippen-Kiefer-Gaumen-Spalten: 1. Lippenrotverschluß am Ende der ersten Lebenswoche, 2. Verlorrhaphie am Endes des ersten, 3. Rehabilitation von Oberlippe und Nase am Ende des vierten und 4. Palatorrhaphie am Ende des sechsten Lebensjahres. Die konservative kieferorthopädische Behandlung setzt erst nach der Verlorrhaphie mit einer Oberkieferabdeckplatte ein und wird bis zum Verschluß des harten Gaumens fortgesetzt. Ziele des „Wiener Konzeptes” sind 1. normale Entwicklung des Oberkiefer- und Mittelgesichtskomplexes, 2. rechtzeitig normalisierte Funktion der orofazialen und velaren Muskulatur für Sprach- und Gehörentwicklung, 3. frühzeitige Minderung der ästhetischen Beeinträchtigung, um psychische Spätschäden zu vermeiden. Zur Objektivierung des Oberkieferwachstums wurden Modellvermessungen durchgeführt. Die Ergebnisse zeigen ein ungestörtes Wachstum des Oberkiefers bis zum zwölften Lebensjahr an.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 29 (1989), S. 513-522 
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    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: The acoustic emission behavior during tensile loading of two common epoxy systems of different ductility was investigated at different loading rates. At low threshold voltage, it was possible to register acoustic emissions before the final failure. Only very few emissions were recorded compared with the amount commonly recorded for metals and composite materials. The acoustic emissions detected were of burst-type, revealing a brittle damage accumulation process. They originated from the initiation and incremental growth of microcracks of stochastic nature. The events occurred before gross yielding and during the final “brittle” failure process. Basically no events were detected between gross yielding and the final failure during which large scale yielding, necking, and stable crack growth took place. The occurrence of events at the different loading rates was strongly influenced by the yielding behavior and fracture toughness, characterized by the yield stress σy and the plane-strain fracture toughness KIc respectively. KIc was inversely dependent on the total number of events up to gross yielding. The event distribution normalized with respect to the conditions at gross yielding was hardly affected by the loading rate.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 29 (1989), S. 523-530 
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    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: The plane-strain fracture toughness of two common epoxy systems of different ductility were determined at different loading rates, according to ASTM E 399 for metallic materials. The ASTM standard was applicable, but underestimated slightly the specimen thickness required for KIc. KIc decreased with an increasing loading rate and with an increasing yield stress. The fracture surfaces were all very smooth as long as plane-strain conditions prevailed.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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