Zobrazeno 1 - 2
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pro vyhledávání: '"B R R, Persson"'
Publikováno v:
Bioelectromagnetics. 24(6)
The question of whether very weak low frequency magnetic fields can affect biological systems, has attracted attention by many research groups for quite some time. Still, today, the theoretical possibility of such an interaction is often questioned a
Publikováno v:
Oikos. 25:140
Lichens of the genus Cladonia, mainly C. alpestris, collected during 1882-1972 were analyzed for stable lead and 210Pb. The specific activity of 210Pb (210Pb/Pb ratio) indicates a constant value of about 2 mCi/kg up to 1940, and then decreased to 0.6