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Electric fields on quasiperiodic potentials.

Research RF Safe Research Library Jan 1, 2010

This theoretical condensed-matter study examines how an electric field affects the electronic spectrum and localization in quasiperiodic chains modeled with Harper and Fibonacci potentials. It reports localized ladder spectra under strong fields and smoothing with linearly decreasing gaps under weak fields. When…

The modulation of the de Haas-van Alphen effect in graphene by electric field.

Research RF Safe Research Library Jan 1, 2010

This theoretical/physics paper examines how an in-plane uniform electric field affects the de Haas-van Alphen (dHvA) effect in graphene. It reports that magnetization, magnetic susceptibility, and dHvA oscillation behavior depend on a dimensionless parameter β = E/(vF B), with divergences described at a critical…

Radiofrequency microtenotomy for the treatment of plantar fasciitis shows good early results.

Research RF Safe Research Library Jan 1, 2010

This small clinical case series evaluated TOPAZ radiofrequency coblation microtenotomy for recalcitrant plantar fasciitis in 14 patients. The abstract reports improved AOFAS hindfoot scores at 3 and 6 months and improvements in several SF-36 domains, with most patients reporting good-to-excellent satisfaction. The…

Cell phones and brain tumors: a review including the long-term epidemiologic data

Research RF Safe Research Library Jan 1, 2009

This paper presents a meta-analysis of 11 peer-reviewed epidemiologic studies examining long-term (>=10 years) cell phone use with laterality analyses. It reports that long-term use is associated with an approximately doubled risk of an ipsilateral brain tumor. The abstract states statistical significance for glioma…

Scientific Committee on Emerging and Newly Identified Health Risks

Research RF Safe Research Library Jan 1, 2009

This SCENIHR Opinion updates earlier 2009 SCENIHR documents on EMF health effects and research needs, focusing on new information and remaining knowledge gaps. The abstract primarily characterizes sources and patterns of exposure across static, ELF, IF, and RF fields in both public and occupational settings. It notes…

Parenting by cell phone: parental monitoring of adolescents and family relations.

Research RF Safe Research Library Jan 1, 2009

This cross-sectional questionnaire study of 196 parent–adolescent dyads examined how cell phone calling patterns relate to perceptions of truthfulness, parental knowledge, and family relationships. More frequent parental calling was associated with lower perceived truthfulness, and calls made when upset were linked…

Electric field switching of the magnetic anisotropy of a ferromagnetic layer exchange coupled to the multiferroic compound BiFeO3.

Research RF Safe Research Library Jan 1, 2009

This paper reports electric-field control of magnetic anisotropy in a Permalloy layer exchange-coupled to a multiferroic BiFeO3 single crystal. The anisotropy is described as arising from magnetic coupling to canted spins in BiFeO3’s cycloidal antiferromagnetic structure. An electric field-induced polarization change…

Evaluation of the efficacy of pulsed electromagnetic field in the management of patients with diabetic polyneuropathy.

Research RF Safe Research Library Jan 1, 2009

This randomized controlled trial evaluated low-power, low-frequency pulsed electromagnetic field (PEMF) therapy at 600 Hz and 800 Hz as an adjunct treatment for diabetic polyneuropathy. Thirty participants were randomized to 600 Hz PEMF, 800 Hz PEMF, or usual medical treatment for 12 days. The abstract reports…

Arthroscopic capsular shrinkage for chronic ankle instability with thermal radiofrequency: prospective multicenter trial.

Research RF Safe Research Library Jan 1, 2008

This prospective multicenter longitudinal trial evaluated arthroscopic thermal radiofrequency capsular shrinkage for chronic ankle instability in adults who failed conservative therapy. The study reports no clinically relevant improvement in mechanical stability, but substantial and statistically significant…

SAR changes in a human head model for plane wave exposure (500 - 2500 MHz) and a comparison with IEEE 2005 safety limits.

Research RF Safe Research Library Jan 1, 2008

This engineering/modeling study derived external electric field values from peak average 10 g SAR in a realistic human head model exposed to plane waves at 500–2500 MHz. The derived fields were compared with IEEE and ICNIRP reference levels across multiple incident directions and polarizations. The authors report…

Plasma-assembled carbon nanotubes: electric field-related effects.

Research RF Safe Research Library Jan 1, 2008

This engineering-focused paper compares carbon nanotube growth in dense low-temperature plasma versus on a substrate surface using hybrid/Monte-Carlo simulations. It reports that plasma parameters strongly influence ion fluxes and nanotube growth kinetics, with large differences in growth rates and fluxes between…

Improvement in magnetic field immunity of externally-coupled transcutaneous energy transmission system for a totally implantable artificial heart.

Research RF Safe Research Library Jan 1, 2008

This engineering study addresses interference between induction-heating cookers and an externally coupled transcutaneous energy transmission system for a totally implantable artificial heart. The authors report that magnetic flux from an IH cooker can couple into the TET transformer and affect system performance. A…

[Microstrip antenna design and system research of radio frequency identification temperature sensor].

Research RF Safe Research Library Jan 1, 2008

This engineering paper introduces an RFID sensor network concept integrating RFID with wireless sensor networks and emphasizes the role of antennas. It discusses coil, dipole, and microstrip antennas and reports designing a microstrip antenna for a wireless temperature monitoring and control system. Measurements are…

Development of a cell phone-based video streaming system for persons with early stage Alzheimer's disease.

Research RF Safe Research Library Jan 1, 2008

This conference paper reports early development of a cell phone-based video streaming system to deliver video reminders for people with early dementia. Carers can record and schedule reminders remotely via a computer and webcam. A first prototype was implemented, with an initial field trial scheduled and a larger…

Radiofrequency dosimetry in subjects implanted with metallic straight wires: a numerical study.

Research RF Safe Research Library Jan 1, 2008

This numerical FDTD study modeled RF exposure at 900 and 1800 MHz in tissue containing thin metallic straight wire implants. The model indicates that the wire can substantially increase local SAR, creating high SAR gradients. Despite this, the authors report that exposures below current safe levels resulted in…

[Evaluation of the occupational risk related to exposure to electromagnetic fields according to the EC Directive 2004/40 EC: exposure during pregnancy].

Research RF Safe Research Library Jan 1, 2007

This article addresses occupational EMF exposure during pregnancy in the context of EU Directive 2004/40/EC, emphasizing the need for workplace risk evaluation. It notes that research evidence on pregnancy risks from occupational EMF exposure is currently scarce and inconclusive. The authors also report insufficient…

AC electric field-induced alignment and long-range assembly of multi-wall carbon nanotubes inside aqueous media.

Research RF Safe Research Library Jan 1, 2007

This engineering study examines multi-wall carbon nanotubes suspended in water exposed to AC electric fields generated by 3D electrodes. It reports field-induced polarization leading to nanotube alignment and long-range, electrically conducting assemblies spanning the electrode gap, with assembly length controlled by…

Magnetic field distribution and signal decay in functional mri in very high fields (up to 9.4 T) using monte carlo diffusion modeling.

Research RF Safe Research Library Jan 1, 2007

This paper models extravascular MRI signal decay (R2/R2*) as a function of blood oxygenation, vessel geometry, and magnetic field strength up to 9.4 T using Monte Carlo diffusion simulations. It reports different vessel-size dependencies for Hahn-spin-echo versus gradient-recalled-echo relaxation across field…

Dependence of RF heating on SAR and implant position in a 1.5T MR system.

Research RF Safe Research Library Jan 1, 2007

This phantom study measured RF-induced heating of a stainless steel humerus implant during 1.5T MR imaging while varying SAR, implant angle to B0, and implant position in the RF coil. Temperature rise at implant tips increased linearly with SAR, with larger rises when the implant was parallel to B0. Heating decreased…

Ultranarrow optical absorption and two-phonon excitation spectroscopy of Cu2O paraexcitons in a high magnetic field.

Research RF Safe Research Library Jan 1, 2007

This physics study reports ultranarrow optical absorption and two-phonon excitation spectroscopy of Cu2O paraexcitons in a high magnetic field at 1.2 K. A magnetic field enabled observation of an otherwise forbidden paraexciton absorption line and allowed measurement of field-dependent oscillator strength and energy…

Biased bilayer graphene: semiconductor with a gap tunable by the electric field effect.

Research RF Safe Research Library Jan 1, 2007

This paper reports that the electronic gap in bilayer graphene can be controlled externally via a gate bias (electric field effect). Using magnetotransport (Shubnikov-de Haas) data and a tight-binding model, the authors extract the gap as a function of electronic density. They report tuning the gap from zero to…

The Effectiveness of a Conductive Patch and a Conductive Bed Pad in Reducing Induced Human Body Voltage Via the Application of Earth Ground

Research RF Safe Research Library Jan 1, 2005

This engineering-style study measured voltage induced on the human body via capacitive coupling to the environment using a high-impedance measurement head. It then applied earth grounding through a conductive patch and a conductive bed pad. Both grounding methods reportedly reduced coupled 60 Hz mains voltage by at…

Physics and biology of mobile telephony

Research RF Safe Research Library Jan 1, 2000

This review argues that current mobile-telephony safety guidelines address excessive microwave heating but may not account for potential non-thermal influences of low-intensity, pulsed radiation. It highlights an asserted oscillatory similarity between pulsed microwave signals and certain electrochemical activities…

The effect of pulsed and sinusoidal magnetic fields on the morphology of developing chick embryos

Research RF Safe Research Library Jan 1, 1997

This animal study reports results from five experimental campaigns over five years examining weak magnetic field exposure and morphological abnormalities in White Leghorn chick embryos. Four campaigns reported statistically significant increases in abnormality rates, while one pulsed-field campaign showed only a…

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