the role of low-pressure rf plasma in the inactivation of escherichia coli o157, klebsiella pneumoniae, proteus mirabilis, and enterobacter sakazakii using n2-o2 and sf6 gases was assessed. 1×109 colony-forming units (cfus) of each bacterial isolate were placed on three polymer foils. the effects of pressure, power, distance from the source, and exposure time to plasma gases were optimized. the...

mri workers are occupationally exposed to static and time-varying gradient magnetic fields.  while the 24-hour time-averaged exposure to static magnetic fields is about a few mt, the maximum static field strength can be as high as 500 mt during patient set up. over the past several years, our lab has performed extensive experiments on the health effects of exposure of animal models and humans t...

In the past three decades, study on the biological effects of extremely low-frequency electromagnetic fields (ELF-EMFs) has been of interest to scientists. Although the exact mechanism of its effect is not fully understood, free radical processes has been proposed as a possible mechanism. This study was designed to evaluate the effect of 50-Hz EMFs on the mRNA levels of seven antioxidant genes ...