نتایج جستجو برای: 12 hz electromagnetic

تعداد نتایج: 688376  

Weak microwave radiation (WMR) in our environment has raised health concerns in the public. Among those, communication frequencies are more than ever becoming widespread and their effects need thorough studies. A correct understanding of these effects in-vivo by in-vitro experiments shall preferentially use primary cells. In this study we compared non-modulated (CW) and modulated WMR exposure o...

2015
S. M. J. Mortazavi S. Rahimi A. Talebi A. Soleimani A. Rafati

BACKGROUND The rapid development of wireless telecommunication technologies over the past decades, has led to significant changes in the exposure of the general public to electromagnetic fields. Nowadays, people are continuously exposed to different sources of electromagnetic fields such as mobile phones, mobile base stations, cordless phones, Wi-Fi routers, and power lines. Therefore, the last...

F Samiee M Mohammadi-Zadeh Khoshroo M Soltani Mehdi Shamsaie Mehrgan, S.P Hosseini Shekarabi

All organisms are probably exposed to different types of electromagnetic fields (EMFs). This study is an attempt to evaluate the effect of extremely low-frequency EMFs (50 Hz) on some growth parameters and survival rate of common carp fingerling. The fry (n = 120, averaged 16.76 ± 0.88 g in initial weight) was exposed to ELF-EMF at four intensities of 0.1, 0.5, 1 and 2 mT only once for 2 h and ...

Asad-Allah Zarifkar Gholamreza Hamzavi, Karim Rastegar Mehdi Movahedi

Introduction: Biological effects of magnetic fields have been investigated by scientists for many years and a vast amount of research using different frequencies and intensities have been performed on humans and laboratory animals. The results of these studies, which have mostly been done by applying high frequencies, have shown that electromagnetic fields are effective on structure and functio...

Introduction: Electrochemotherapy (ECT) is a cancer treatment modality to permeabilize cell membrane facilitating the non-permeant molecules to gain access to the cytosol of cells. Nevertheless, environmental electromagnetic fields (EMFs) may disturb the efficiency of ECT. The present study aimed to investigate the effect of EMFs 900 MHz pulse-modulated by 217 Hz extremely low-frequency fields ...

Journal: :General physiology and biophysics 2009
Göknur Güler Zerrin Türközer Elcin Ozgur Arin Tomruk Nesrin Seyhan Cimen Karasu

Modern age exposes humans to an increasing level of electromagnetic activity in their environment due to overhead power lines and transformers around residential areas. Studies have shown that treatment with antioxidants can suppress the oxidative damage induced by electromagnetic fields in various frequencies of the non-ionizing radiation band. In this study, we detected protein carbonyl conte...

Journal: :China Foundry 2021

The effect of a low-frequency alternating magnetic field (AMF, 0 A Hz, 5 10 15 Hz) on the hot tearing susceptibility (HTS) magnesium alloy (EV31) was systematically studied using combination experiment and numerical simulation. By observing macroscopic cracks in joints “T” samples, tendency samples analyzed. HTS can be predicted via simulation crack coefficient (CSC). microstructure morphology ...

2015
Qian-Ru Zhao Jun-Mei Lu Jin-Jing Yao Zheng-Yu Zhang Chen Ling Yan-Ai Mei

Animal studies have shown that electromagnetic field exposure may interfere with the activity of brain cells, thereby generating behavioral and cognitive disturbances. However, the underlying mechanisms and possible preventions are still unknown. In this study, we used a mouse model to examine the effects of exposure to extremely low-frequency (50 Hz) electromagnetic fields (ELF MFs) on a recog...

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