نتایج جستجو برای: electromagnetic phenomenaadverse effects

تعداد نتایج: 1611144  

2005
Ralf Rapp

The theory of thermal photon and dilepton emission from hot and dense hadronic matter, as well as from the Quark-Gluon Plasma, is reviewed in the context of extracting in-medium properties of the matter constituents. In phenomenological applications to ultrarelativistic heavy-ion collisions we focus on low transverse-momentum ”anomalies” as recently observed in photon and dilepton spectra by WA...

2004
A. Duncan E. Eichten

The inclusion of electromagnetic effects in unquenched QCD can be accomplished using ensembles generated in dynamical simulations with pure QCD provided the change in the quark determinant induced by a weak electromagnetic field can be efficiently computed. A stochastic technique for achieving this in the case of dynamical domain wall calculations is described.

2005
Charles Gale

We discuss some of the aspects of the physics of relativistic nuclear collisions, in particular those having to do with the observation of electromagnetic radiation. We concentrate on what such measurements tell us about the local, in-medium properties of the environment from which they emerge. The contribution from different sources are considered: that from the partonic sector of QCD, and tha...

Journal: :Environmental Health Perspectives 1993
N Paneth

Some laboratory experiments have suggested that power-frequency electric and magnetic fields (EMF) may be capable of influencing calcium efflux from cell membranes, pineal function, and circadian rhythms. As yet, however, no consistent, replicable laboratory model has been developed for any of these effects. Most assessments of human volunteers exposed to EMF have been negative, but occasional ...

2005
Henry Lai

Radiofrequency electromagnetic field=radiation (RFR) covers a large segment of the electromagnetic spectrum and falls within the nonionizing bands. Its frequency ranges between 3KHz and 300GHz. Cellular phones, wireless transmission towers for radio, TV, and telecommunication, radar and many other applications emit RFR. Different frequencies of RFR are used in different applications. For exampl...

1998
J. E. Amaro A. Molinari

Following recent studies of non–relativistic reductions of the single–nucleon electromagnetic current operator, here we extend the treatment to include meson exchange current operators. In contrast to the traditional scheme where approximations are made for the transferred momentum, transferred energy and momenta of the initial–state struck nucleons, we treat the problem exactly for the transfe...

2003

INTRODUcnON ing was halted in 1962. Subsequently, 11.01 Explosions of conventional reliance has been placed on underhigh explosives can produce electroground testing, analysis of existing atmagnetic signals and so the generation mospheric test data, nonnuclear simulaof an electromagnetic pulse (EMP) from tion, and theoretical calculations. a nuclear detonation was expected. Extended efforts hav...

Journal: :Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2004
Thomas L Smith Donna Wong-Gibbons Jane Maultsby

PURPOSE Pulsed electromagnetic fields (PEMF) are used clinically to expedite healing of fracture non-unions, however, the mechanism of action by which PEMF stimulation is effective is unknown. The current study examined the acute effects of PEMF stimulation on arteriolar microvessel diameters in the rat cremaster muscle. The study hypothesis was that PEMF would increase arteriolar diameters, a ...

Journal: :Physical review letters 2009
Carlos Palenzuela Matthew Anderson Luis Lehner Steven L Liebling David Neilsen

In addition to producing gravitational waves, the dynamics of a binary black hole system could induce emission of electromagnetic radiation by affecting the behavior of plasmas and electromagnetic fields in their vicinity. We here study how the electromagnetic fields are affected by a pair of orbiting black holes through the merger. In particular, we show how the binary's dynamics induce a vari...

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