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Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display monitors Genet. Mol. Biol.
Carbonari,Karina; Gonçalves,Luciane; Roth,Daniela; Moreira,Patrick; Fernández,Ricardo; Martino-Roth,Maria da Graça.
It is well recognized that electromagnetic fields can affect the biological functions of living organisms at both cellular and molecular level. The potential damaging effects of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube video display monitors (VDMs) has become a concern within the scientific community. We studied the effects of occupational exposure to VDMs in 10 males and 10 females occupationally exposed to VDMs and 20 unexposed control subjects matched for age and sex. Genetic damage was assessed by examining the frequency of micronuclei in exfoliated buccal cells and the frequency of other nuclear abnormalities such as binucleated and broken egg cells. Although there were no...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Micronucleus test; Mutagenicity; Electromagnetic fields.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300024
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On Huygens' principle for Dirac operators associated to electromagnetic fields Anais da ABC (AABC)
CHALUB,FABIO A.C.C..
We study the behavior of massless Dirac particles, i.e., solutions of the Dirac equation with m = 0 in the presence of an electromagnetic field. Our main result (Theorem 1) is that for purely real or imaginary fields any Huygens type (in Hadamard's sense) Dirac operators is equivalent to the free Dirac operator, equivalence given by changes of variables and multiplication (right and left) by nonzero functions.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Huygens' principle; Dirac operators; Electromagnetic fields; Hadamard's problem.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652001000400002
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