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Showing results for: interaction

Effects of Polarized Coherent Microwaves Modulated at Extremely Low Frequencies

Research RF Safe Research Library Jan 1, 2025

This review-style text discusses polarized, coherent microwaves that are modulated and pulsed at extremely low frequencies (ELF) and suggests these characteristics may increase biological interactions. It emphasizes that intensity variability and ELF modulation are important for understanding EMF–biology…

Impact of a Terahertz electromagnetic field on the ion permeation of potassium and sodium channels

Research RF Safe Research Library Jan 1, 2025

This biophysics study used molecular dynamics simulations to examine how terahertz electromagnetic fields affect ion permeation in voltage-gated potassium (Kv1.2) and sodium (Nav1.5) channels. The simulations report increased ion permeability at several specific terahertz frequencies, with effects depending on field…

Differential impacts of co-exposures to ELF-EMFs and noise on prostate-specific antigen levels: A longitudinal study.

Research RF Safe Research Library Jan 1, 2025

This 8-year longitudinal study of thermal power station workers assessed co-exposure to occupational noise and ELF-EMFs in relation to PSA levels. Noise exposure (LAeq) was associated with increased log-PSA in both unadjusted and adjusted models, and the association persisted after adjusting for ELF-EMFs. ELF-EMF…

Thermodynamic Considerations on the Biophysical Interaction between Low-Energy Electromagnetic Fields and Biosystems.

Research RF Safe Research Library Jan 1, 2024

This paper presents a thermodynamic model intended to explain how extremely low-frequency electromagnetic fields (ELF-EMFs) may interact with cells. The authors propose that ELF-EMFs directly interfere with the cellular membrane, producing biological responses linked to energy conversion and changes in flows across…

CaATPase enzyme activities and lipid and protein oxidations of grass carp (Ctenopharyngodon idellus) stored at 4 °C for 30 min under electromagnetic fields.

Research RF Safe Research Library Jan 1, 2023

This study evaluated 12 mT electromagnetic fields (100–400 Hz) applied during 30 minutes of cold storage (4 °C) of grass carp. EMF exposure was associated with increased CaATPase activity and frequency-dependent changes in protein and lipid oxidation. NMR results suggested altered water–protein interactions, and the…

Phagocytosis of latex beads by a human monocytic Mono Mac 6 cell line and effects of low-frequency electromagnetic field interaction.

Research RF Safe Research Library Jan 1, 2023

This in vitro study tested whether a low-frequency EMF (7 Hz, 30 mT) alters phagocytosis-related outcomes in the human monocytic Mono Mac 6 cell line. EMF exposure was associated with increased necrosis in cells pre-stimulated with SEB and then undergoing latex bead phagocytosis, while no significant cell-death…

Consciousness and inward electromagnetic field interactions.

Research RF Safe Research Library Jan 1, 2022

This review discusses longstanding EMF theories of mind/brain integration as a potential explanation for unified conscious experience and aspects of the "hard problem" of consciousness. It notes that EMFs are measurable and that correlates have been reported with changes in consciousness, sensory perception, and…

Health disturbances and exposure to radiofrequency electromagnetic fields from mobile-phone base stations in French urban areas.

Research RF Safe Research Library Jan 1, 2021

This cross-sectional survey in five French cities assessed whether measured RF-EMF exposure from mobile-phone base stations was associated with self-reported non-specific and insomnia-like symptoms among residents living within 250 m of a base station. Overall, measured base-station exposure was not associated with…

Characterizing the Binding of Angiotensin Converting Enzyme I Inhibitory Peptide to Human Hemoglobin: Influence of Electromagnetic Fields.

Research RF Safe Research Library Jan 1, 2020

This in vitro study used spectroscopic and conductometry methods to examine binding between human hemoglobin and an angiotensin-converting enzyme inhibitory peptide, with and without electromagnetic field (EMF) exposure. The authors report that EMF changed the Hb–ACEIP interaction and that binding was associated with…

Hepatocellular carcinoma therapy finds a channel on the radio

Research RF Safe Research Library Jan 1, 2019

This EBioMedicine commentary discusses tumour-specific amplitude-modulated RF EMF as an anti-cancer therapy for hepatocellular carcinoma and highlights Cav3.2 (CACNA1H) T-type calcium channels as a proposed mediator of the effect. It notes that the reported whole-body averaged SAR in a treated HCC patient was below…

Effects of single and combined low frequency electromagnetic fields and simulated microgravity on gene expression of human mesenchymal stem cells during chondrogenesis.

Research RF Safe Research Library Jan 1, 2018

This in vitro study exposed human mesenchymal stem cell pellets undergoing chondrogenesis to simulated microgravity (SMG), low-frequency EMF (5 mT, 15 Hz), or both for 3 weeks. SMG significantly changed gene expression and reduced chondrogenic marker expression (including COL2A1). LF-EMF alone showed no…

[Dynamics of biomacromolecules in coherent electromagnetic radiation field].

Research RF Safe Research Library Jan 1, 2014

The abstract describes a mechanism by which coherent electromagnetic fields may induce oscillations and periodic shifts in biomacromolecules without requiring radiation absorption. This effect is attributed to modulation of interaction potentials among atoms/groups involved in non-valence bonds. The authors state…

Specific absorption rate variation in a brain phantom due to exposure by a 3G mobile phone: problems in dosimetry.

Research RF Safe Research Library Jan 1, 2013

This paper describes a SAR measurement system for a 3G mobile phone (1718.5 MHz) using brain phantom material in a Perspex box sized to a small rat volume, with induced fields measured at multiple locations. SAR was computed from induced-field measurements and also estimated experimentally via temperature rise, with…

Simulation of colloidal fouling by coupling a dynamically updating velocity profile and electric field interactions with Force Bias Monte Carlo methods for membrane filtration.

Research RF Safe Research Library Jan 1, 2013

This engineering simulation study models colloidal particle transport and deposition in a membrane filtration channel at a particle volume fraction of 10%. The model couples a dynamically updating crossflow velocity field with particle-particle and particle-membrane interaction potentials (electrostatic double layer…

Quasiuniversal transient behavior of a nonequilibrium Mott insulator driven by an electric field.

Research RF Safe Research Library Jan 1, 2012

This paper presents a theoretical description of nonequilibrium dynamics in a three-dimensional Fermi-Hubbard model driven by an external electric field. The authors report direction-dependent damping of Bloch oscillations and the emergence of a long-lived transient prethermalized state over a broad range of field…

Template-free synthesis and self-assembly of aligned nickel nanochains under magnetic fields.

Research RF Safe Research Library Jan 1, 2011

This engineering/materials study describes a template-free solution-phase method to synthesize well-aligned nickel nanochains under applied magnetic fields. The authors report that nanochain size and morphology can be tuned by reaction temperature and magnetic field conditions, and explain alignment via magnetic…

Interaction quench dynamics in the Kondo model in the presence of a local magnetic field.

Research RF Safe Research Library Jan 1, 2010

This theoretical study analyzes quench dynamics in the Kondo model on the Toulouse line in the presence of a local magnetic field. The authors report exact analytical results for local spin dynamics, finding that relaxation timescales are set by the Kondo scale. They also describe damped transient oscillations in…

Electric field gradients in (111)In-doped (Hf/Zr)3Al2 and (Hf/Zr)4Al3 mixed compounds: ab initio calculations, perturbed angular correlation measurements and site preference.

Research RF Safe Research Library Jan 1, 2010

This materials-physics study investigated quadrupolar hyperfine interactions of (111)In→(111)Cd probes in polycrystalline Zr4Al3 and Hf4Al3 containing minority (Zr/Hf)3Al2 phases. The authors observed a strong preference of (111)In solutes for the minority (Zr/Hf)3Al2 phases. Ab initio EFG calculations were used to…

Quasiparticles of spatially anisotropic triangular antiferromagnets in a magnetic field.

Research RF Safe Research Library Jan 1, 2009

This theoretical/physics study investigates spectral properties of a spin-1/2 Heisenberg antiferromagnet on an anisotropic triangular lattice in a magnetic field. It reports that interchain interactions in a magnetic field generate dominant modes that behave as quasiparticles, featuring anomalous incommensurate…

[Influence of electromagnetic radiation on raf kinase inhibitor protein and its related proteins of hippocampus].

Research RF Safe Research Library Jan 1, 2008

This rat study examined hippocampal RKIP and related markers after exposure to high power microwaves (X-band and S-band) or an electromagnetic pulse. RKIP protein decreased at 6 hours post-exposure, with recovery by 1 day in the EMP group but more prolonged decreases (up to ~7 days) in the microwave groups.…

[A measurement of spontaneous magnetic field by satellites structures of harmonic spectrum].

Research RF Safe Research Library Jan 1, 2007

This study measured satellite structures of second- and third-harmonic spectra reflected from solid targets during femtosecond laser–plasma interactions using an optical multi-channel spectrometer. Red-shifted satellite structures of 2ω0 and 3ω0 were observed, and at ~10^18 W/cm^2 the inferred spontaneous magnetic…

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