Stochastic Dynamics of Magnetosomes in Cytoskeleton

Rotations of microscopic magnetic particles, magnetosomes, embedded into the cytoskeleton and subjected to the influence of an ac magnetic field and thermal noise are considered. Magnetosome dynamics is shown to comply with the conditions of the stochastic resonance under not-too-tight constraints on the character of the particle's fastening. The excursion of regular rotations attains the value of order of radian that facilitates explaining the biological effects of low-frequency weak magnetic fields and geomagnetic fluctuations. Such 1-rad rotations are effectively controlled by slow magnetic field variations of the order of 200 nT.Comment: LaTeX2e, 7 pages with 3 figure

On the interaction cross section of very fast nucleons /

Prepared for the National Science Foundation Russian Science Translation-Dictionary Project, Columbia University.Translated from Doklady Akademii Nauk SSSR, 91, 511-13 (1953)--title page."November 1953."Includes bibliographical references (page 3).Mode of access: Internet