نتایج جستجو برای: low frequency electromagnetic fields

تعداد نتایج: 1838387  

Journal: :Philosophical Transactions of the Royal Society B: Biological Sciences 2005

Journal: :Journal of Environmental Health Science and Engineering 2014

2009
Antonietta Albanese Emilio Battisti Daniela Vannoni Emilia Aceto Gianmichele Galassi Stefania Giglioni Valentina Tommassini Nicola Giordano

This study investigated the effects of electromagnetic fields on enzymes involved in purine metabolism in human peripheral blood mononuclear cells in vitro. Cells were obtained from 20 volunteers. We tested both low-energy, extremely low frequency (ELF; 100-Hz) electromagnetic fields and the Therapeutic Application of Musically Modulated Electromagnetic Fields (TAMMEFs); the latter is character...

2012
Henry Lai

s on Effects of Extremely Low Frequency (ELF) EMF on DNA 27 (E)effect reported; 14 (NE)no significant effect reported Ahuja YR, Vijayashree B, Saran R, Jayashri EL, Manoranjani JK, Bhargava SC. In vitro effects of low-level, low-frequency electromagnetic fields on DNA damage in human leucocytes by comet assay. Indian J Biochem Biophys. 36(5):318-322, 1999. (E) The sources for the effects of ele...

Journal: :Anesthesiology 2009
Jang Ho Roh Deok Won Kim Sung Jin Lee Ji Young Kim Sung Won Na Seung Ho Choi Ki Jun Kim

BACKGROUND Numerous electronic devices have been introduced into operating rooms. Although little is known about the relationship between exposure to electromagnetic fields and health hazards, several studies have demonstrated causal relationships between electromagnetic fields exposure and various symptoms, cancers, and other diseases. METHODS This study was approved by the Institutional Rev...

2003
Jingong Pan Kang-Nian Zhu MengChu Zhou Zhi Y. Wang

It is well known that electromagnetic fields play a critical role in all biological evolutionary processes. The natural low resonant frequency may interact with the biological signaling pathway through liquid, especially water. Our hypothesis is that the structured water cluster may be not only an excellent carrier for nutrition and energy, but also an excellent carrier for low frequency inform...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده فنی 1393

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2004
Henry Lai

Nonionizing electromagnetic fields (EMF) have photon energy less than 10eV, a level not sufficient to produce ions by ejection of orbital electrons from atoms. The biological effects of two types of nonionizing electromagnetic fields are being studies intensely: extremely-lowfrequency (ELF) electromagnetic field and radiofrequency radiation. Extremely-low-frequency EMF covers the frequency rang...

Journal: :SIAM J. Math. Analysis 2000
Habib Ammari Jean-Claude Nédélec

The main result of this paper is to reduce the calculation of higher-order terms in the asymptotic expansions of the electric and magnetic elds at low frequencies to the solutions of certain canonical problems. We also provide a new and simple variational proof of the convergence of the electric and magnetic elds solutions of the scattering problem for the Maxwell equations as the frequency goe...

Journal: :Neuroscience letters 2005
Yanlin Lei Tianyue Liu Fraser A W Wilson Dongming Zhou Yuanye Ma Xintian Hu

In the present study, we examined the effects of extremely low-frequency (ELF) electromagnetic fields on morphine-induced conditioned place preferences in rats. During the conditioning phase (12 days), three groups of rats were placed in a sensory cue-defined environment paired with morphine (10mg/kg, i.p.) following exposure to either 20 Hz (1.80 mT) or 50 Hz (2.20 mT) or sham electromagnetic ...

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