نتایج جستجو برای: rf radiation

تعداد نتایج: 269852  

Journal: :journal of biomedical physics and engineering 0
s m j mortazavi 1medical physics and medical engineering department, school of medicine, shiraz university of medical sciences, shiraz, z mostafavi-pour biochemistry department, medical school, shiraz university of medicinal sciences, shiraz, ir iran 3recombinant protein lسازمان های دیگر: 3recombinant protein laboratory, school of advanced medical sciences and technologies, shiraz university

background: over the past few years, the rapid use of high frequency electromagnetic fields like mobile phones has raised global concerns about the negative health effects of its use. adaptive response is the ability of a cell or tissue to better resist stress damage by prior exposure to a lesser amount of stress. this study aimed to assess whether radiofrequency radiation can induce adaptive r...

Journal: :journal of biomedical physics and engineering 0
s. m. j. mortazavi professor of medical physics, medical physics department, school of medicine, shiraz university of medical sciences, shiraz, iran m. motamedifar associate professor of microbiology, department of bacteriology, school of medicine and shiraz hiv/aids research center (sharc), shiraz university of medical sciences, shiraz, iran a. r. mehdizadeh assistant professor of medical physics, medical physics department, school of medicine, shiraz university of medical sciences, shiraz, iran g. namdari student research committee, school of medicine, shiraz university of medical sciences, shiraz, iran m. taheri lecturer of microbiology, laboratory sciences department, school of allied medical sciences, shiraz university of medical sciences, shiraz, iran

background: pre-exposure to radiofrequency radiations of mobile phones would significantly increase the survival rate of exposed animals compared to those exposed to a lethal dose of gamma radiation alone. stimulation of the immune system is believed to be a key mechanism for the induction of this phenomenon, the so-called “adaptive response.” the immune system protects organisms against infect...

2014
Kyoung Ah Kang Hyung Chul Lee Je-Jung Lee Mi-Na Hong Myung-Jin Park Yun-Sil Lee Hyung-Do Choi Nam Kim Young-Gyu Ko Jae-Seon Lee

The objective of this study was to investigate the effects of the combined RF radiation (837 MHz CDMA plus 1950 MHz WCDMA) signal on levels of intracellular reactive oxygen species (ROS) in neuronal cells. Exposure of the combined RF signal was conducted at specific absorption rate values of 2 W/kg of CDMA plus 2 W/kg of WCDMA for 2 h. Co-exposure to combined RF radiation with either H2O2 or me...

The radiofrequency electromagnetic fields (RF-EMFs) produced by widely used mobile phones are classified as possibly carcinogenic to humans by International Agency for Research on Cancer (IARC). Current data on the relationship between exposure to RF-EMFs generated by commercial mobile phones and brain cancer are controversial. Our studies show that this controversy may be caused by several par...

Journal: :journal of biomedical physics and engineering 0
gh mortazavi s a r mortazavi a r mehdizadeh

a large body of evidence now indicates that the amount of mercury released from dental amalgam fillings can be significantly accelerated by exposure to radiofrequency electromagnetic fields (rf-emfs) such as common mobile phones and magnetic resonance imaging (mri). studies performed on the increased microleakage of dental amalgam restorations after exposure to rf-emfs have further supported th...

Journal: :anesthesiology and pain medicine 0
awisul ghazali institution daradia, the pain clinic, kolkata, india gautam das institution daradia, the pain clinic, kolkata, india; institution daradia, the pain clinic, concord tower, 2nd floor, 92/2 a bidhan nagar road, ultadanga, kolkata-700067, india. tel: +91-9339657857 khaled horani institution daradia, the pain clinic, kolkata, india gs anand kumar institution daradia, the pain clinic, kolkata, india palak mehta institution daradia, the pain clinic, kolkata, india debjyoti dutta institution daradia, the pain clinic, kolkata, india

background chronic sacroiliac (si) joint pain constitutes 16% to 30% of the total prevalence of chronic low back pain, which is commonly unilateral. apart from conservative management, various interventional pain management procedures have been reported. intraarticular deposteroid injection has been described as the most evidence-based, but different various radio frequency (rf) procedures have...

2017
P. Mokarram M. Sheikhi S.M.J. Mortazavi S. Saeb N. Shokrpour

BACKGROUND Over the past several years, the rapidly increasing use of mobile phones has raised global concerns about the biological effects of exposure to radiofrequency (RF) radiation. Numerous studies have shown that exposure to electromagnetic fields (EMFs) can be associated with effects on the nervous, endocrine, immune, cardiovascular, hematopoietic and ocular systems. In spite of genetic ...

Journal: :journal of biomedical physics and engineering 0
m eghlidospour smj mortazavi f yousefi sar mortazavi

mobile phone use and wireless communication technology have grown explosively over the past decades. this rapid growth has caused widespread global concern about the potential detrimental effects of this technology on human health. stem cells generate specialized cell types of the tissue in which they reside through normal differentiation pathways. considering the undeniable importance of stem ...

F Yousefi M Eghlidospour, SAR Mortazavi SMJ Mortazavi,

Mobile phone use and wireless communication technology have grown explosively over the past decades. This rapid growth has caused widespread global concern about the potential detrimental effects of this technology on human health. Stem cells generate specialized cell types of the tissue in which they reside through normal differentiation pathways. Considering the undeniable importance of stem ...

2012
Michael Peleg

This paper addresses the argument stating that since the energy of a single Radio Frequency (RF) photon is extremely small it cannot influence matter significantly and therefore RF radiation cannot cause cancer. The argument is shown to be wrong since most known phenomena and uses of RF radiation involve many photons acting in unison. For example, in a particle accelerator, a multitude of RF ph...

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