|Setup||exposures for vertical time-varying and static magnetic field were performed in a two-dimensional coil system; horizontal field generated by three coils consisting of 300 turns of 1 mm copper wire each, spaced 98 mm apart; electric current through the middle coil reduced by 58% to improve the homogeneity of the field; vertical field generated by two Helmholtz coils with a diameter of 346 mm and 740 turns of 1 mm copper wire, spaced 182 mm apart; coil system placed in an underground room, whose walls were build as a Faraday cage; two warm water baths shielded from the MF of the stirring motor and the heating device by a 1 cm thick 200 cm x 170 cm aluminum plate; twelve 1.5 ml tubes exposed simultaneously in a water bath in the exposure device|
|Sham exposure||A sham exposure was conducted.|
|Additional info||environmental low frequency field (40-1000 Hz): B=0.09 µT sham exposure done under the environmental static magnetic field of B=16 µT|
The predictions of the investigated model that at a frequency of 60 Hz the biological effect under investigation would significantly be altered at the amplitudes of 1.3 and 3.9 µT could not be confirmed (i.e. no effects on calcium efflux under exposure).