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Background: Biological effects of extra-low-frequency (ELF) magnetic fields (MF) have lacked a credible mechanism of interaction between MFs and living material. Objectives: Examine the effect of ELF-MFs on cancer cells. Methods: Five…

General Physics · Physics 2012-09-27 Ying Li , Paul Heroux

Background: Biological effects of extra-low-frequency (ELF) magnetic fields (MFs) have lacked a credible mechanism of interaction between MFs and living material. Objectives: To examine the effect of ELF-MFs on cancer cells. Methods: Five…

Tissues and Organs · Quantitative Biology 2014-04-15 Ying Li

Extremely low frequency electromagnetic fields aren't considered as a real carcinogenic agent despite the fact that some studies have showed impairment of the DNA integrity in different cells lines. The aim of this study was evaluation of…

Subcellular Processes · Quantitative Biology 2013-01-24 Cosmin Teodor Miha , Gabriela Vochita , Florin Brinza , Pincu Rotinberg

The effects of a pulsed low frequency electromagnetic field were investigated on photoluminescence of well characterized water and prepared under controlled conditions (container, atmospheric, electromagnetic, and acoustic environments).…

Chemical Physics · Physics 2016-08-16 Philippe Vallée , Jacques Lafait , Pascale Mentré , Marie-Odile Monod , Yolène Thomas

Cell assemblies manipulation by optogenetics is pivotal to advance neuroscience and neuroengineering. In in vivo applications, photostimulation often broadly addresses a population of cells simultaneously, leading to feed-forward and to…

Neurons and Cognition · Quantitative Biology 2016-04-08 Rocco Pulizzi , Gabriele Musumeci , Chris Van Den Haute , Sebastian Van De Vijver , Veerle Baekelandt , Michele Giugliano

Local field potentials (LFPs) are routinely measured experimentally in brain tissue, and exhibit strong low-pass frequency filtering properties, with high frequencies (such as action potentials) being visible only at very short distances…

Biological Physics · Physics 2016-08-16 C. Bédard , H. Kröger , A. Destexhe

Using a high-frequency field superposed to a linearly polarized bichromatic laser field composed by a wave with frequency $\omega $ and a wave with frequency $2\omega $, we show it is possible to enhance the intensity of a group of high…

Atomic Physics · Physics 2009-11-06 C. Figueira de Morisson Faria , M. L. Du

This work describes an experiment and some results from instability involving the proliferation achieved by cells over some radio frequency electromagnetic field. Saccharomyces cerevisiae cells were cultured, and separate samples were…

Biological Physics · Physics 2018-08-01 W S Dias , E H M Liquer , L C Gontijo , T A Oakes , G S Dias , C Marques , H S Chavez

We report on the effect of a weak magnetic field applied on an iodine cell used to frequency stabilize a laser. A 1.5$~\mu$m laser is frequency tripled in order to excite the molecular transitions at 0.51$~\mu$m and frequency locked on a…

The effect of AC electric fields on the elasticity of supported lipid bilayers has been investigated at the microscopic level using grazing incidence synchrotron x-ray scattering. A strong decrease in the membrane tension up to 1mN/m and a…

Soft Condensed Matter · Physics 2016-06-08 Arnaud Hemmerle , Thierry Charitat , Giovanna Fragneto , Jean Daillant

Non-linear magnetization dynamics is essential for the operation of many spintronics devices. For microwave assisted switching of magnetic elements the low field regime is of particular interest. In addition a large number of experiments…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 Hans G. Bauer , Peter Majchrak , Torsten Kachel , Christian H. Back , Georg Woltersdorf

The interaction of coherent nonlinear structures (such as sub-cycle solitons, electron vortices and wake Langmuir waves) with a strong wake wave in a collisionless plasma can be exploited in order to produce ultra-short electromagnetic…

Plasma Physics · Physics 2009-11-11 S. S. Bulanov , T. Zh. Esirkepov , F. F. Kamenets , F. Pegoraro

The transfer of mechanical signals through cells is a complex phenomenon. To uncover a new mechanotransduction pathway, we study the frequency-dependent transport of mechanical stimuli by single microtubules and small networks in a…

Biological Physics · Physics 2017-05-03 M. D. Koch , N. Schneider , P. Nick , A. Rohrbach

Numerical investigation of the interaction of electromagnetic fields with eukaryotic cells requires specifically adapted computer models. Virtual microdosimetry, used to investigate exposure, requires volumetric cell models, which are…

Theoretical and experimental evidences support the hypothesis that extremely low-frequency electromagnetic fields can affect voltage-gated channels. Little is known, however, about their effect on potassium channels. Kv1.3, a member of the…

Subcellular Processes · Quantitative Biology 2015-08-26 Claudia Cecchetto , Marta Maschietto , Pasquale Boccaccio , Stefano Vassanelli

Ultrafast lasers, with pulse durations below a few picoseconds, are of significant interest to the industry, offering a cutting-edge approach to enhancing manufacturing processes and enabling the fabrication of intricate components with…

Biological Physics · Physics 2024-04-03 Julian Holland , Cristiana Lungu , Rudolf Weber , Max Emperle , Thomas Graf

This work studies the suitability of a set of different materials for manufacturing of more efficient and durable Radio-Frequency Quadrupole (RFQ) structures compared to that currently used in many linear particle accelerators,…

The importance of magnetic fields in three-dimensional magnetoconvection models of the Sun's photosphere is investigated in terms of their influence on the continuum intensity at different viewing inclination angles, and on the intensity…

Solar and Stellar Astrophysics · Physics 2015-06-23 D. Fabbian , F. Moreno-Insertis

Extracellular local field potentials (LFP) are usually modeled as arising from a set of current sources embedded in a homogeneous extracellular medium. Although this formalism can successfully model several properties of LFPs, it does not…

Biological Physics · Physics 2016-08-16 Claude Bédard , Helmut Kröger , Alain Destexhe

During operation, the radio-frequency quadrupole (RFQ) of the LINAC4 at CERN is exposed to high electric fields, which can lead to vacuum breakdown. It is also subject to beam loss, which can cause surface modification, including…

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