نتایج جستجو برای: pulsed electromagnetic fields

تعداد نتایج: 338732  

2012
Masroor H. S. Bukhari Z. H. Shah

The possibility of intrinsic electromagnetic fields within living cells and their resonant self-interaction and interaction with ambient electromagnetic fields is suggested on the basis of a theoretical and experimental study. It is reported that intrinsic electromagnetic fields are produced in the form of radio-frequency and infra-red photons within atoms (which may be coupled or uncoupled) in...

برزگری فیروز ابادی, فاطمه, میرحسینی, محبوبه,

Introduction: Access to modern methods for increasing the percentage of in vitro human and animal mature oocytes can be useful in the treatment of some forms of human infertility as well as proliferation of many domestic and wild animals which generation is endangered. Effect of low- frequency electromagnetic fields on in vitro growth and maturation of mouse oocytes is recently considered as a ...

Journal: :journal of biomedical physics and engineering 0
smj mortazavi s rahimi a talebi a soleimani a rafati

introduction : 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 fi elds. nowadays, people are continuously exposed to different sources of electromagnetic fi elds such as mobile phones, mobile base stations, cordless phones, wi-fi routers, and power lines. therefore,...

Journal: :Biochemical and biophysical research communications 2002
Dimitris J Panagopoulos Andreas Karabarbounis Lukas H Margaritis

A biophysical model for the action of oscillating electric fields on cells, presented by us before [Biochem. Biophys. Res. Commun. 272(3) (2000) 634-640], is extended now to include oscillating magnetic fields as well, extended to include the most active biological conditions, and also to explain why pulsed electromagnetic fields can be more active biologically than continuous ones. According t...

2017
Samir Kumar Praharaj

Sir, I read with great interest the review article on Lhermitte’s sign by Khare and Seth.[1] The sign occurs, inter alia, in multiple sclerosis, in traumatic lesions of the cervical cord, and in subacute combined degeneration. I agree that very few studies are available on Lhermitte’s sign and there is need of more research in this particular field. In this current review, treatment with extrac...

Journal: :IEEE Transactions on Magnetics 1982

Journal: :Physical chemistry chemical physics : PCCP 2014
Daungruthai Jarukanont João T S Coimbra Bernd Bauerhenne Pedro A Fernandes Shekhar Patel Maria J Ramos Martin E Garcia

We report on the viability of breaking selected bonds in biological systems using tailored electromagnetic radiation. We first demonstrate, by performing large-scale simulations, that pulsed electric fields cannot produce selective bond breaking. Then, we present a theoretical framework for describing selective energy concentration on particular bonds of biomolecules upon application of tailore...

2013
Alaa H. Ali

Electromagnetic forming (EM forming or magneforming) is a type of high velocity, cold forming process for electrically conductive metals, most commonly copper and aluminum. The work piece is reshaped by high intensity pulsed magnetic fields that induce a current in the work piece and a corresponding repulsive magnetic field, rapidly repelling portions of the work piece. The work piece can be re...

2017
Enrica Capelli Filippo Torrisi Letizia Venturini Maria Granato Lorenzo Fassina Giuseppe Francesco Damiano Lupo Giovanni Ricevuti

The aim of the present study was to investigate on the effects of a low-frequency pulsed electromagnetic field (LF-PEMF) in an experimental cell model of Alzheimer's disease (AD) to assess new therapies that counteract neurodegeneration. In recent scientific literature, it is documented that the deep brain stimulation via electromagnetic fields (EMFs) modulates the neurophysiological activity o...

Journal: :iranian biomedical journal 0
شهین احمدیان shahin ahmadian سعید رضایی زارچی saeed rezaei zarchi بهرام بلوری bahram bolouri

the efficacious effects of pulsed electromagnetic field (pemf) under the certain field parameters like frequency and the field intensity have been reported for various tissue and molecules. since collagen is found abundantly in most tissue structures, this research was designed to further investigate the effects of extremely low frequency (elf) pemf on the synthesis of the epidermal collagen. t...

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