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Digitale Medien

Stimulative Vaporization of Phenyl-mercuric Acetate by Mercury-resistant Bacteria (1968)

TONOMURA, K. ; MAEDA, K. ; FUTAI, F. ; [weitere]

[s.l.] : Nature Publishing Group

Nature 217 (1968), S. 644-646

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] Fig. 1. Uptake of 203Hg-PMA by mercury-resistant bacteria. The washed cells of the organism (8.8 x 108) were incubated in 1 ml. of 0.02 M phosphate buffer, pH 7.2, containing 90 p.p.m. PMA. Radioactivity in the whole medium (O), supernatant fluids (?), and cells (?) was assayed. PMA in supernatant ...

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1038/217644b0

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Digitale Medien

Electrodynamics of the ionosphere (1966)

Maeda, K. ; Kato, S.

Springer

Space science reviews 5 (1966), S. 57-79

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ISSN: 1572-9672

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract We review various important studies in the field of electrodynamics of the ionosphere. Four topics are presented; (1) conductivity, (2) wind and the dynamo theory, (3) drift and its effect on the ionosphere formation and (4) interaction between wind and electromagnetic field. We point out some important future problems. They are: (1) We need to consider in the dynamo theory of the geomagnetic daily variation the connection of the ionosphere of both hemispheres by lines of force of the geomagnetic field. (2) Non-periodic wind may be important for producing electric field. (3) Drift to cause interchange of ionization contained in tubes of the geomagnetic field lines, and diffusion of ionization in these tubes control dynamic behaviours of the F2 region. (4) Interaction between wind and electric current presents a new problem. (5) The ionosphere and the magnetosphere react to each other.