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  • Digital computer  (1)
  • Incisor growth  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 26 (1978), S. 29-31 
    ISSN: 1432-0827
    Keywords: Tetracycline ; Incisor growth ; Incisor unimpeded eruption
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary Twenty-four hours after a tetracycline injection, the unimpeded, and more rapidly erupting, mouse mandibular incisor contained 20% to 44% more tetracycline than the contralateral, uncut incisor. It was concluded that the increased tetracycline incorporation reflected a higher rate of mineralization associated with faster tooth formation in the unimpeded tooth. By measuring the amount of tetracycline which became incorporated at different times after an incisor was shortened, it was possible to investigate an early stage of the response of the incisor to cutting. A significant increase in the capacity of the tooth to incorporate tetracycline was detectable 4 h after shortening the tooth, and this was maximal after another 4 h.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Medical & biological engineering & computing 11 (1973), S. 262-267 
    ISSN: 1741-0444
    Keywords: Digital computer ; anaesthesia control ; respiration control
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire Cet article décrit le contrôle d'un certain nombre de variables physiologiques interactives par un ordinateur on-line fonctionnant en temps réel. Il est démontré qu'un système contrôlé par ordinateur peut, en surveillant les valeurs de la pression artérielle, le pourcentage de CO2 en fin de cycle et le pourcentage de O2 respiré, maintenir la respiration et l'anesthésie d'un animal recevant de l'air dans des tolérances strictes. Sous le contrôle d'un ordinateur, il est possible de compenser les perturbations aléatoires des paramètres du système et l'on peut traiter automatiquement les changements affectant les niveaux désirés des variables.
    Abstract: Zusammenfassung Die Steuerung einer Anzhhl von in Wechselwirkung stehenden physiologischen Variablen durch einen on-line, in real-time arbeitenden Rechner wird vorgeführt. Es wird gezeigt, dass ein komputergesteuertes System durch die Überwachung des arteriellen Blutdruckes, der endzyklischen CO2 Konzentration und der inspirierten O2 Konzentration, die Respiration und d Anaesthesie eines beatmeten Tieres innerhalb enger Toleranzgrenzen erbalten kann. Es ist möglich, unter Rechnerkontrolle statistisch auftretende Störungen der Systemparameter anzukompensieren, und Abweichungen von den gewünschten Werten der Variablen können automatisch berücksichtigt werden.
    Notes: Abstract Control of a number of interactive physiological variables by an online computer, operating in real time, is demonstrated. It is shown that a computer-controlled system, by monitoring values of arterial blood pressure, end-tidal CO2 percentage and inspired O2 percentage, can maintain the respiration and anaesthesia of a ventialted animal within close tolerances. Under computer control, it is possible to compensate for random disturbances of the system parameters, and changes in the desired levels of the variables can be dealt with automatically.
    Type of Medium: Electronic Resource
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