Results 171 to 180 of about 14,589 (218)

A quantization of the electromagnetic field

Canadian Journal of Physics, 1983
Quantization of the electromagnetic field in a class of covariant gauges is performed on a positive metric Hilbert space. Although losing manifest covariance, we find at the free field level the existence of two physical spaces where Poincaré transformations are implemented unitarily.
Capri, Anton Z., Grübl, Gebhard, Kobes, Randy   +2 more
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Electromagnetic fields and cells

Journal of Cellular Biochemistry, 1993
AbstractThere is strong public interest in the possibility of health effects associated with exposure to extremely low frequency (elf) electromagnetic (EM) fields. Epidemiological studies suggest a probable, but controversial, link between exposure to elf EM fields and increased incidence of some cancers in both children and adults.
R, Goodman, Y, Chizmadzhev, A, Shirley-Henderson   +2 more
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Quantization of the Electromagnetic Field

2000
In this chapter, we quantize the electromagnetic field and find the commutation relations between the various components of the electric, magnetic fields and the vector potential.
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Link Invariants of Electromagnetic Fields

Physical Review Letters, 2004
The cross-helicity integral is known in fluid dynamics and plasma physics as a topological invariant which measures the mutual linkage of two divergence-free vector fields, e.g., magnetic fields, on a three-dimensional domain. Generalizing this concept, a new topological invariant is found which measures the mutual linkage of three closed two-forms, e ...
v. Bodecker, Hanno, Hornig, Gunnar
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Multidrug Resistance and Electromagnetic Fields

Journal of Bioelectricity, 1990
The effect of low-frequency electromagnetic fields (EMFs) on the multidrug resistant cell line MCF7 dx was studied. In cultures containing 40 mg/ml doxorubicin, incorporation of H3-thymidine was inhibited by exposure to EMFs. The effect may have occurred via functional inhibition of P-glycoprotein.
PETRINI, MARIO, MATTII, LETIZIA, SABBATINI, ANTONIETTA RAFFAELLA MARIA, CARULLI, GIOVANNI, Grassi B, Cadossi R, Conte A, RONCA, GIOVANNI   +7 more
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The remedial electromagnetic field

Journal of Biomedical Engineering, 1989
This paper reviews the history and development of electric and electromagnetic fields used in the treatment of a variety of medical conditions. An account is given of their clinical use and some suggestions are advanced for an explanation of a possible physiological mechanism.
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Electromagnetic Fields and Electromagnetic Waves

2017
Microwaves are not a simple heat source. Substances are heated directly by electromagnetic waves at energies commensurate with microwaves. Therefore, an understanding of the nature of these electromagnetic waves is the dominating discussion on microwave heating.
Satoshi Horikoshi, Robert F. Schiffmann, Jun Fukushima, Nick Serpone   +3 more
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Atoms in Electromagnetic Fields

1994
Atoms in weak broadband quasi-resonant fields - light shifts atoms in linear superpositions of Zeeman sublevels-Zeeman coherences atoms in strong radiofrequency fields - the dressed-atom approach in the RF domain atoms in intense resonant laser beams - the dressed-atom approach in the optical domain the radiative cascade of the dressed atom - photon ...
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Electromagnetic Fields

2008
S. ATERINI, RUGGIERO, MARCO
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Measuring Electromagnetic Fields

Epidemiology, 2000
K C, Jaffa, H, Kim, T E, Aldrich
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