glow discharge generated when the skin is subjected to trains of triangular electric pulses. These properties are modified when the skin is exposed to EMF generated by computer screens. Materials able to shield EMF from VDU and 50-60 Hz are at hand: these frequencies are the most likely to be perceived as skin damaging, and these materials are advantageously used in skin care products claiming the capability to shield these EMFs. After topical application of creams able to shield or dampen the intensity of electromagnetic radiation, the electric properties of the surface of the skin are less prone to undergo the modifications induced by the exposure to electromagnetic fields.
Principles of the experimentation GDV Technique allows the monitoring of individual reactions to different treatments [ 11,12,13 ]. The experiments was performed with healthy volunteers from 18 to 40 years old. Control measurements( before exposure to EMF) were taken when subjects had remained in a computer-free environment for at least 20 minutes. The computer monitor used for measuring changes in GDV was a standard electron-beam tube computer monitor with 17’’ screen. Control measurements with computer turned on and off without turn on the monitor demonstrated that the GDV signal was constant for volunteers not exposed to EMF.
The Gas Discharge Visualization Measurements of individual reaction to EMF have been performed using Gas Discharge Visualization( GDV) technique [ 11 ], which generate images of the air gap around the skin during the glow discharge consequent to the stimulation of the skin with a train of triangular electrical pulses. The electric field initiates electron-ion avalanches, which result in a gas discharge along the dielectric surface. The spatial distribution of discharge channels can
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glow discharge generated when the skin is subjected to trains of triangular electric pulses. These properties are modified when the skin is exposed to EMF generated by computer screens. Materials able to shield EMF from VDU and 50-60 Hz are at hand: these frequencies are the most likely to be perceived as skin damaging, and these materials are advantageously used in skin care products claiming the capability to shield these EMFs. After topical application of creams able to shield or dampen the intensity of electromagnetic radiation, the electric properties of the surface of the skin are less prone to undergo the modifications induced by the exposure to electromagnetic fields.
MATERIALS AND METHODS
Principles of the experimentation GDV Technique allows the monitoring of individual reactions to different treatments [ 11,12,13 ]. The experiments was performed with healthy volunteers from 18 to 40 years old. Control measurements( before exposure to EMF) were taken when subjects had remained in a computer-free environment for at least 20 minutes. The computer monitor used for measuring changes in GDV was a standard electron-beam tube computer monitor with 17’’ screen. Control measurements with computer turned on and off without turn on the monitor demonstrated that the GDV signal was constant for volunteers not exposed to EMF.
The Gas Discharge Visualization Measurements of individual reaction to EMF have been performed using Gas Discharge Visualization( GDV) technique [ 11 ], which generate images of the air gap around the skin during the glow discharge consequent to the stimulation of the skin with a train of triangular electrical pulses. The electric field initiates electron-ion avalanches, which result in a gas discharge along the dielectric surface. The spatial distribution of discharge channels can