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  • 1980-1984  (5)
  • 79.20  (2)
  • Audiogenic seizures  (2)
  • 33  (1)
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Years
  • 1980-1984  (5)
Year
  • 1
    ISSN: 1432-0649
    Keywords: 33 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 31 (1983), S. 37-44 
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract The areal density and the depth distribution of3He trapped in Ni as a function of the bombarding fiuence was measured in the energy range of 1–25 keV and at angles of incidence between 0 and 85° using nuclear reaction analysis. At fluences below saturation a linear relation is found between the areal density and the fiuence. From its slope the trapping and reflection coefficients can be determined. The experimental data for trapping and reflection coefficients and for the depth profiles were compared with computer simulation results from the TRIM program. To reduce uncertainties in the absolute values of the experimental trapping coefficients, they were normalized to the TRIM values at normal incidence. The dependence of the measured reflection coefficient on the angle of incidence between 0 and 80° shows good agreement with the calculated data for incident energies from 3 to 25 keV, but for 1 keV the measured reflection coefficients are higher than the calculated ones.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Applied physics 33 (1984), S. 265-268 
    ISSN: 1432-0630
    Keywords: 79.20
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Abstract Trapping and particle reflection coefficients for 0.4–10keVD on graphite have been measured for angles of incidence 0≦α≦85° by determining the areal density of implanted D as a function of the implanted fluence. The experimental data are compared to computer calculations with the TRIM-program. The agreement between measurement and calculation is good.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 238 (1983), S. 217-223 
    ISSN: 1434-4726
    Keywords: Kanamycin ; Cochlea damage ; Audiogenic seizures ; Sensitive period for ototoxicity ; Mice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The ototoxicity of kanamycin was investigated in mice treated with the drug either from 6 to 9, 10 to 13, or 15 to 18 days of age. The results showed extensive damage to the outer-hair-cell (OHC) receptors of the cochlea in the 10–13-day group; some less severe damage to the OHC was found in the 6–9-day group, and little damage was observed in the 15–18 day group. The present finding is consistent with the view that the mouse cochlea is most vulnerable to the ototoxic effect of kanamycin during the period of its rapid development, i.e., between 10 and 13 days of age.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    European archives of oto-rhino-laryngology and head & neck 232 (1981), S. 215-220 
    ISSN: 1434-4726
    Keywords: Ototoxizität ; Kanamycin ; Empfindlichkeit ; Maus ; audiogene Anfälle ; Ototoxicity ; Kanamycin ; Sensitive period ; Mice ; Audiogenic seizures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary It has been found that administration of kanamycin (400 mg/kg daily) for 5 days was highly effective in inducing susceptibility to audiogenic seizures in BALB/c mice, if the drug was administered between the age of 10–14 postnatal days. The same drug dosage administered between the age of 5–9, 15–19, or 20–24 postnatal days was found to be ineffective. Since induction of seizure susceptibility is highly correlated with the degree of cochlear damage produced by either ototoxic drugs or noise, it was suggested that the age of 10–14 postnatal days could be the most sensitive period for the ototoxic effect of kanamycin.
    Notes: Zusammenfassung Kanamycin in einer Dosis von 400 mg/kg täglich über 5 Tage bewirkt eine deutliche Empfindlichkeitssteigerung für audiogene Anfälle bei BALB/c-Mäusen, wenn das Medikament zwischen 10. und 14. postnatalem Tag verabreicht wird. Kanamycin in gleicher Dosis hat aber keinen Effekt, wenn es zwischen 5.–9., 15.–19. oder 20.–24. postnatalem Tag gegeben wird. Da die Erhöhung der Anfälligkeit für audiogene Anfälle einen deutlichen Zusammenhang mit dem Grad von Cochleaschaden durch ototoxische Medikamente oder Lärm hat, wird angenommen, daß der 10.–14. postnatale Tag die empfindlichste Periode für den ototoxischen Effekt des Kanamycins darstellt.
    Type of Medium: Electronic Resource
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