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  • 2005-2009  (1)
  • 1985-1989  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Exposure to pulse-modulated radio frequency electromagnetic fields affects regional cerebral blood flow (2005)
    Oxford, UK : Blackwell Science Ltd
    European journal of neuroscience 21 (2005), S. 0 
    Details
    ISSN: 1460-9568
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: We investigated the effects of radio frequency electromagnetic fields (RF EMF) similar to those emitted by mobile phones on waking regional cerebral blood flow (rCBF) in 12 healthy young men. Two types of RF EMF exposure were applied: a ‘base-station-like’ and a ‘handset-like’ signal. Positron emission tomography scans were taken after 30 min unilateral head exposure to pulse-modulated 900 MHz RF EMF (10 g tissue-averaged spatial peak-specific absorption rate of 1 W/kg for both conditions) and sham control. We observed an increase in relative rCBF in the dorsolateral prefrontal cortex on the side of exposure. The effect depended on the spectral power in the amplitude modulation of the RF carrier such that only ‘handset-like’ RF EMF exposure with its stronger low-frequency components but not the ‘base-station-like’ RF EMF exposure affected rCBF. This finding supports our previous observation that pulse modulation of RF EMF is necessary to induce changes in the waking and sleep EEG, and substantiates the notion that pulse modulation is crucial for RF EMF-induced alterations in brain physiology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-9568.2005.03929.x
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  • 2
    Electronic Resource
    Electronic Resource
    Cerebrovaskuläre Komplikationen bei Schwangeren — fünf Kasuistiken (1989)
    Springer
    Archives of gynecology and obstetrics 245 (1989), S. 300-301 
    Details
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Zusammenfassung Subarachnoidalblutungen in der Schwangerschaft sind schicksalhaft. Frühsymptome oder Risikofaktoren gibt es nicht. Nach Diagnosestellung soll die Mutter rasch operiert werden. In der Spätschwangerschaft kann die Sektio in gleicher Narkose durchgeführt werden. Die Indikation für Computertomographie und Angiographie muß großzügig gestellt werden.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02417290
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    Paper (German National Licenses)
    Fulltext
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