نتایج جستجو برای: low frequency electromagnetic fields
تعداد نتایج: 1838387 فیلتر نتایج به سال:
introduction: there are general concerns about the hazardous impacts of the cell phones radiation on the human health. in this study, the structural and biochemical changes of the mice kidney were assessed after cell phone exposure in. materials and methods: a total of 40 balb/c mice were randomly divided into the control and experimental groups. the experimental group exposed to cell phone dev...
Background: The increasing use of telecommunication devices such as Wi-Fi modems and mobile phones in the recent years can change the cellular structure of microorganisms so the generation of electromagnetic waves has led to concern in the community whenever be exposed to these fields and may have harmful effects on human health.Material and Methods: Standard strains of bacteria were prepared o...
An extremely large earthquake (with magnitude of 8.2) happened on 8 August 1993 near the Guam island, and ultra-low-frequency (ULF) (frequency less than 1 Hz) electromagnetic fields were measured by 3-axis induction magnetometers at an observing station (with the epicentral distance of 65 km) with sampling frequency of 1 Hz. In order to study electromagnetic signature of prefracture criticality...
A fundamental model consisting of charged particles moving in free space exposed to alternating and direct current (ACDC) electromagnetic fields is analyzed. Effects of charged particles initial position and initial velocity to cyclotron resonance frequency are observed. Strong effects are observed revealing that effects of electric and magnetic fields on a charged particle in free space varies...
background: men are unavoidably exposed to ambient electromagnetic fields (emf) generated from various electrical gadgets and from power transmission lines. prostate gland plays an important role in secretion of semen as largest accessory gland of male reproductive system. it seems that protection of this gland against emf is important in spermatogenesis process. objective: the goal of this stu...
Current technologies have become a source of omnipresent electromagnetic pollution from generated electromagnetic fields and resulting electromagnetic radiation. In many cases this pollution is much stronger than any natural sources of electromagnetic fields or radiation. The harm caused by this pollution is still open to question since there is no clear and definitive evidence of its negative ...
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