Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1985-1989  (4)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European archives of psychiatry and clinical neuroscience 238 (1989), S. 203-207 
    ISSN: 1433-8491
    Keywords: Narcolepsy ; Bright white light ; Circadian rhythms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Bright white light (5001x) for 4 h/day was applied to seven narcoleptic patients (age 47–65 years, mean 55 years). The effects of the light on the disturbed sleep-wake cycle in narcoleptics were investigated by the measurement of the following parameters: (1) excessive daytime sleepiness and sustained attention (multiple sleep latency test); (2) rest-activity cycles; (3) self-ratings (mood, anxiety, tiredness); (4) urinary cycles of 6-OH melatonin sulphate and cortisol; (5) sleep EEG. Treatment with bright light showed neither objective nor subjective changes in the clinical symptoms of narcolepsy. While similar “dosage” light applications can phase shift human circadian rhythms and improve depression and hypersomnia in winter depression, it is not an appropriate treatment for narcolepsy.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archive of applied mechanics 55 (1985), S. 237-241 
    ISSN: 1432-0681
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Summary The flexibility of a cantilever beam caused by a symmetrical crack in the damped cross-section and the resulting decrease of the natural frequencies is simulated by a spring at the cantilever's support point. Fracture mechanics provide a means for the estimation of the magnitude of the spring stiffness.
    Notes: Übersicht Die durch einen am Einspannquerschnitt vorhandenen Riß bedingte Nachgiebigkeit und weiter die daraus resultierende Eigenfrequenzabsenkung wird durch eine Einspann-Drehfeder des Kragträgers simuliert. Die Größe dieser Drehfeder wird anhand einer vorliegenden Lösung des bruchmechanischen Problems abgeschätzt.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Fresenius' Zeitschrift für analytische Chemie 326 (1987), S. 760-762 
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Summary The course of the hydrogenation of nitrogenous heterocyclic compounds (pyridine, quinoline, isoquinoline, 2-methylpyrrole) has been investigated by means of 1H NMR spectrometry under various conditions. The activation energy has been calculated from the relative abundance of aromatic and aliphatic protons in dependence on the temperature of hydrogenation. The contents of elementary hydrogen obtained from the samples by means of the 1H NMR method and the classical method of elemental analysis were in close agreement with a relative error below 8%.
    Notes: Zusammenfassung Der Verlauf der Hydrierung von heterocyclischen Stickstoffverbindungen (Pyridin, Chinolin, Isochinolin, 2-Methylpyrrol) wurde mit Hilfe der 1H-NMR-Spektrometrie unter verschiedenen Bedingungen untersucht. Die Aktivierungsenergie wurde aus der relativen Häufigkeit der aromatischen und aliphatischen Protonen in Abhängigkeit von der Hydrierungstemperatur berechnet. Die durch 1H-NMR-Methode und durch klassische Elementar-analyse bestimmten Gehalte an elementarem Wasserstoff stimmten mit einem relativen Fehler von 8% überein.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Annali di matematica pura ed applicata 143 (1986), S. 401-409 
    ISSN: 1618-1891
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary Stationary regime of Stimulated Brillouin scattering with zero acoustic loss is studied. Bifurcated branches emanating from trivial solution are computed analytically (global results).
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...