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  • 1
    ISSN: 1436-0578
    Keywords: Schlüsselwörter Simulation ; Crisis Resource Management ; Ausbildung ; Modelle ; Key words Simulation ; Crisis Resource Management ; Training ; Modeling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Simulation is a new technique in anaesthesiology. Full scale simulators are devices capable of modelling exactly important physiological aspects of a patient. These models, a patient mannequin and a realistic enviroment, evoke the impression of treating a real patient. Simulation serves the purposes of training and education, of research and development. It is an excellent tool for the acquisition of knowledge, experience and the training for emergency situations (crisis resource management). Research areas are human factors, ergonomy, physiology and modelling. The available devices still offer room for improvements. Currently there is an increasing number of about 90 installations worldwide and 5 in Germany. With great financial, organisational and personal efforts the centres offer classes for external participants and members of their own institutions. The eventual role of simulation in the training and education of anaesthesiologists and other medical personell still has to be defined.
    Notes: Zusammenfassung Die Simulation in der Anästhesie ist eine neue Technik. Full Scale-Simulatoren sind Geräte, die mit Hilfe von Modellen wichtige physiologische Eigenschaften eines Patienten exakt simulieren. Mit Hilfe dieser Modelle, einer Patientenpuppe und einer realistischen Umgebung kann bei Probanden der Eindruck des Handelns am echten Patienten erzeugt werden. Die Simulation dient der Aus-, Fort- und Weiterbildung, der Forschung und Entwicklung. Mit ihr kann medizinisches Wissen und Erfahrung ebenso vermittelt werden, wie das Management von Notfallsituationen (Crisis Resource Management). Sie dient besonders der Forschung auf den Gebieten Verhalten, Ergonomie, Physiologie, Pharmakologie und Modellbildung. Die vorhandenen Geräte bieten immer noch erheblichen Raum für Verbesserungen und Erweiterungen. Die Simulation erfährt derzeit einen zahlenmäßigen Aufschwung mit weltweit etwa 90 Installationen, in Deutschland gibt es 5 Zentren mit wachsender Tendenz. Diese Zentren führen unter erheblichem finanziellen, organisatorischen und personellen Aufwand regelmäßig Kurse für eigene und externe Teilnehmer durch. Ihr Stellenwert in der Ausbildung von Anästhesisten und anderen Medizinern ist noch nicht endgültig definiert.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 104 (1997), S. 198-200 
    ISSN: 1435-1536
    Keywords: Microemulsion ; calorimetry ; phase transitions and their dynamics ; oscillations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract By differential scanning microcalorimetry we investigate temperature-induced phase transitions and their dynamics in mixtures of water, oil and a non-ionic surfactant. Special emphasis is on an investigation of the transition from a lamellar to a microemulsion phase and on the emulsification failure. The first-order phase transition from a lamellar to a microemulsion phase leads to heat changes up to 1k BT per surfactant molecule. These large values for the latent heat are quantitatively described by an interfacial model which takes into account the temperature dependence of the spontaneous curvature. The dynamics of phase separation due to an emulsification failure leads to oscillations in the specific heat when heated with constant scan speed. The period and amplitude of the oscillations depend on composition and scan speed. A square root dependence on scan speed is found for the period. The values for the heat absorbed during each oscillation are compared with those calculated from the interfacial model, and a mechanism for the origin of the oscillations is proposed.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1439-6327
    Keywords: Venous blood lactate ; Constant-intensity cycle exercise ; Aerobic threshold ; Anaerobic threshold
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Venous blood lactate concentrations [lab] were measured every 30 s in five athletes performing prolonged exercise at three constant intensities: the aerobic threshold (Thaer), the anaerobic threshold (Than) and at a work rate (IWR) intermediate between (Thaer and Than. Measurements of oxygen consumption $$\left( {\dot V_{O_2 } } \right)$$ and heart rate (HR) were made every min. Most of the subjects maintained constant intensity exercise for 45 min at Thaer and IWR, but at Than none could exercise for more than 30 min. Relationships between variations in [lab] and concomitant changes in $$\dot V_{O_2 } $$ or HR were not statistically significant. Depending on the exercise intensity (Thaer, IWR, or Than) several different patterns of change in [lab] have been identified. Subjects did not necessarily show the same pattern at comparable exercise intensities. Averaging [lab] as a function of relative exercise intensity masked spatial and temporal characteristics of individual curves so that a common pattern could not be discerned at any of the three exercise levels studied. The differences among the subjects are better described on individual [lab] curves when sampling has been made at time intervals sufficiently small to resolve individual characteristics.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 0584-8547
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 5
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0630
    Keywords: 42.80 ; 66.30 ; 85.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Eight LiNbO3: Ti waveguides have been fabricated under differing conditions. The effective refractive indices of guided modes have been measured and successfully fitted to Gaussian index profiles. The change of refractive index and titanium concentration are related by a power law, the exponents being different for the extraordinary and the ordinary beam.
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  • 7
    Electronic Resource
    Electronic Resource
    USA/Oxford, UK : Blackwell Science Ltd
    Cephalalgia 16 (1996), S. 0 
    ISSN: 1468-2982
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: A 37-year-old female migrain patient is described, who suffered from episodes with pure lexical agraphia as the only symptom of migraine aura. The MRI showed multiple subcortical white matter lesions. Central inflammatory and demyelinating disorders were excluded. This case suggests that, during a migraine aura, even very circumscribed brain areas involved in complex neuropsychological processing can be affected.
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