نتایج جستجو برای: extremely low frequency electromagnetic field
تعداد نتایج: 2368407 فیلتر نتایج به سال:
Zinc as an essential trace element was reported to be involved in regulation of the growth and aging of cells. In this study, rat adipose-derived mesenchymal stem cells were exposed to extremely low frequency electromagnetic field (ELF-EMF) of 50 Hz and 20 mT to evaluate whether exposure to ELF-EMF in the presence of zinc sulfate (ZnSO4) affects the telomerase reverse transcriptase (...
Background and aims: Extremely low frequency magnetic field (ELF) is part of Spectrum of electromagnetic waves with range 30 to 300 Hz. The average magnetic field exposures in the workplace have been found to be higher in “electrical occupations” than in other occupations such as office work. The interaction between magnetic fields produced by power lines and substations with living organisms a...
Background and purpose: Angiogenesis has a role in many vital processes also many developmental processes are influenced by an electromagnetic field. In the present study the synergic effects of silver nanoparticles and low-frequency electromagnetic field on angiogenesis in the chick embryo chorioallantoic membrane (CAM). Materials and method: In this experimental study, (Ross strain )...
Introduction: Breast cancer is the most common cancer and the first cause of cancer-related death in women worldwide. Although admirable achievements have been made in finding new therapeutic interventions, introducing efficient approaches with the least side effect is still undoubtedly demanded. Exposure to extremely-low frequency electromagnetic field (ELF-EMF) with specific parameters of fre...
OBJECTIVE To compare occupational exposure to extremely-low-frequency magnetic field (ELF-MF) between dentists practicing in dental clinics and those employed in hospitals. METHODS Thirty-two dentists who worked at clinics (n=15) and 33 dentists employed at hospital dental departments (n=7) voluntarily provided their informed consent to participate in this measurement study. The study dentist...
This study was aimed to observe that extremely low frequency magnetic field (ELF-MF) may be relevant to changes of major neurotransmitters in rat brain. After the exposure to ELF-MF (60 Hz, 2.0 mT) for 2 or 5 days, we measured the levels of biogenic amines and their metabolites, amino acid neurotransmitters and nitric oxide (NO) in the cortex, striatum, thalamus, cerebellum and hippocampus. The...
The article reviews the current state of large-scale studies about the impact of electromagnetic field on natural environment. The scenario of investigations – simulation of natural conditions at the workplace, taking into consideration the influence both low and high frequency electromagnetic fields is shown.The biological effects of low and high frequency electromagnetic fields are below pres...
Introduction: Melanoma is a type of skin censers that is started from melanocyte cells. Conventional methods for diagnosis of cancers include shape, size, and skin tumour colour measurement, the disorder in tumour situation, create scars, bleeding, and touch the site of the injuries. Researches are continuing to find simpler and safer methods in cancer diagnostic. Methods and Materials: The mo...
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