Effect of radiofrequency microtenotomy on degeneration of tendons: an experimental study on rabbits.
Research
RF Safe Research Library
Jan 1, 2014
This experimental rabbit study evaluated radiofrequency microtenotomy (Rf-mt) in prostaglandin E1-induced Achilles tendon degeneration. Rf-mt increased vascularity based on histopathology and immunohistochemistry. However, the authors report no significant difference in tendon healing compared with a sham-control…
Effects of 900 MHz electromagnetic field emitted by cellular phones on electrocardiograms of guinea pigs.
Research
RF Safe Research Library
Jan 1, 2014
This animal study examined whether RF-EMF from cellular phones affects electrocardiograms in guinea pigs. Thirty guinea pigs were randomized to control (no exposure) or RF-EMF exposure (890–915 MHz; SAR 0.95 W/kg) for 12 hours per day over 30 days. The study reports no significant effects on ECG findings under these…
Assessment and comparison of total RF-EMF exposure in femtocell and macrocell base station scenarios.
Research
RF Safe Research Library
Jan 1, 2014
This study assessed and compared total RF-EMF exposure for a mobile-phone user in an office environment when connected to an indoor femtocell base station versus a conventional macrocell base station. Using a framework that combines near-field and far-field exposure, the authors report a 20–40× reduction in total…
No influence of acute RF exposure (GSM-900, GSM-1800, and UMTS) on mouse retinal ganglion cell responses under constant temperature conditions.
Research
RF Safe Research Library
Jan 1, 2014
This double-blind in vitro study exposed isolated mouse retinae to GSM-900, GSM-1800, and UMTS RF-EMF at SARs up to 20 W/kg while maintaining constant temperature. Changes in retinal ganglion cell responses to light stimuli were compared before, during, and up to 35 minutes after exposure. The authors report no…
Use of portable exposure meters for comparing mobile phone base station radiation in different types of areas in the cities of Basel and Amsterdam.
Research
RF Safe Research Library
Jan 1, 2014
This exposure assessment study used portable exposure meters to characterize variability and repeatability of mobile phone base station RF-EMF measurements in urban areas of Basel and Amsterdam. Reported exposure levels varied by area type and city, with downtown/business areas showing higher ranges than residential…
Interference between active implanted medical devices and electromagnetic field emitting devices is rare but real: results of an incidence study in a population of physicians in France.
Research
RF Safe Research Library
Jan 1, 2014
This cross-sectional incidence survey used a postal questionnaire to assess physician-observed interference incidents between EMF-emitting devices and active implanted medical devices (AIMDs) in France. Among 1,188 participating physicians, 16% reported AIMD failures, typically of moderate severity but sometimes…
The alteration of spontaneous low frequency oscillations caused by acute electromagnetic fields exposure.
Research
RF Safe Research Library
Jan 1, 2014
This double-blind, randomized, crossover study examined whether 30 minutes of near-field LTE radiofrequency exposure near the right ear alters resting-state brain activity measured by fMRI. The authors report decreased ALFF in multiple temporal and frontal/paracentral regions after real exposure compared with sham,…
A pilot neighborhood study towards establishing a benchmark for reducing electromagnetic field levels within single family residential dwellings.
Research
RF Safe Research Library
Jan 1, 2014
This pilot study reports EMF field audits in 29 single-family residential dwellings in an urban Toronto neighborhood, measuring RF, power-frequency electric and magnetic fields, and high-frequency voltage transients. The authors frame EMF as an indoor pollutant and note a lack of international consensus on exposure…
Reactive oxygen species elevation and recovery in Drosophila bodies and ovaries following short-term and long-term exposure to DECT base EMF.
Research
RF Safe Research Library
Jan 1, 2014
This animal study measured ROS in Drosophila bodies and ovaries after short- and long-term exposure to DECT base RF (1.88–1.90 GHz; SAR 0.009 W/kg). The abstract reports increased ROS in bodies after 6 h exposure and in ovaries after 0.5–1 h exposure, with apparent saturation under longer continuous exposure. It also…
Investigating short-term exposure to electromagnetic fields on reproductive capacity of invertebrates in the field situation.
Research
RF Safe Research Library
Jan 1, 2014
This field experiment examined short-term (48-hour) exposure to RF EMF from a GSM 900 MHz mobile phone base station on reproductive endpoints in four invertebrate species. The study reports no significant effects of exposure metrics on fecundity or number of offspring, and notes that distance was not a suitable proxy…
Exposure Knowledge and Risk Perception of RF EMF.
Research
RF Safe Research Library
Jan 1, 2014
This cross-sectional survey study (LEXNET project) examined how subjective exposure knowledge relates to risk perception (RP) for different RF EMF sources. Respondents were more concerned about base stations than other sources. Regression results suggested that most exposure-characteristic features (except distance)…
Electromagnetic Radiofrequency Radiation Emitted from GSM Mobile Phones Decreases the Accuracy of Home Blood Glucose Monitors.
Research
RF Safe Research Library
Jan 1, 2014
This study tested whether radiofrequency emissions from a ringing GSM mobile phone affect home blood glucose monitor readings. Among 45 female nondiabetic students, the group measured in the presence vs absence of a ringing phone showed larger changes between two readings than a repeat-measurement control group…
[Modulation of Ca(2+)-dependent proteinase activity in invertebrates and fish under the action of weak low-frequency magnetic fields].
Research
RF Safe Research Library
Jan 1, 2013
This study examined whether weak low-frequency magnetic fields affect Ca2+-dependent proteinases (calpains) in fish and invertebrates using in vivo and in vitro experiments. The authors report a significant decrease in calpain activity in animals exposed to a field tuned to Ca2+ parametric resonance, and substantial…
Study on effective improvement of mobile phone sound quality in a noise environment for the hearing-impaired.
Research
RF Safe Research Library
Jan 1, 2013
This study evaluated whether the NAL-NL1 hearing-aid fitting formula is appropriate for hearing-impaired mobile communication, comparing it with a modified fitting formula. Speech materials were low-pass filtered at 8 kHz and presented through a mobile phone for word-recognition testing in quiet and noisy conditions.…
Effect of pulsed radiofrequency neuromodulation on clinical improvements in the patients of chronic intractable shoulder pain.
Research
RF Safe Research Library
Jan 1, 2013
This study evaluated pulsed radiofrequency (PRF) neuromodulation of the suprascapular nerve in 11 patients with chronic shoulder pain from adhesive capsulitis and/or rotator cuff tear. Pain (VAS) and shoulder-related quality of life/function (OSS) were assessed before treatment and monthly after PRF for up to 9…
Investigation of electric field enhancement between metal blocks at the focused field generated by a radially polarized beam.
Research
RF Safe Research Library
Jan 1, 2013
This engineering/optics study examines focusing properties of a radially polarized beam interacting with gold metal cubes arranged along the beam propagation direction. It reports >20d7 electric field enhancement between two cubes separated by bb/10 on the optical axis, linked to a strong longitudinal field and…
Linear and stable photonic radio frequency phase shifter based on a dual-parallel Mach-Zehnder modulator using a two-drive scheme.
Research
RF Safe Research Library
Jan 1, 2013
This paper presents a theoretical and experimental demonstration of a photonic RF phase shifter based on a dual-parallel Mach-Zehnder modulator using a two-drive scheme. The approach aims to mitigate residual optical carrier effects and avoid a lowest-frequency limitation from an optical filter by driving the…
Combined bipolar radiofrequency surgery of the tongue base and uvulopalatopharyngoplasty for obstructive sleep apnea.
Research
RF Safe Research Library
Jan 1, 2013
This study evaluated combined bipolar radiofrequency surgery of the tongue base (RFBT) with uvulopalatopharyngoplasty (UPPP) in a single session for obstructive sleep apnea, compared with UPPP alone. The combined procedure was associated with improvements in AHI, ODI, sleepiness, and snoring, while mean oxygen…
Biodegradable shape memory nanocomposites with thermal and magnetic field responsiveness.
Research
RF Safe Research Library
Jan 1, 2013
This engineering study reports fabrication of a biodegradable PLLA shape-memory nanocomposite incorporating surface-modified Fe3O4 nanoparticles. The composite showed improved tensile/mechanical and shape-memory properties compared with PLLA, and shape recovery could be triggered by an alternating magnetic field.…
Radiofrequency upper thoracic sympathectomy in the treatment of critical upper limb ischemia--a case series.
Research
RF Safe Research Library
Jan 1, 2013
This paper reports three cases of upper limb critical ischemia with chronic hand/finger defects treated using radiofrequency upper thoracic sympathectomy (thermolysis). The authors state that standard conservative treatments had failed and surgery was initially not indicated. They report the intervention was…
Pulsed radiofrequency in peripheral posttraumatic neuropathic pain: A double blind sham controlled randomized clinical trial.
Research
RF Safe Research Library
Jan 1, 2012
This double-blind, randomized, sham-controlled trial evaluated pulsed radiofrequency applied to injured peripheral nerves for peripheral posttraumatic neuropathic pain. Among 43 analyzed participants, PRF did not show statistically significant benefit over sham for pain reduction at 3 months, nor for neuropathic pain…
A wireless magnetoresistive sensing system for an intraoral tongue-computer interface.
Research
RF Safe Research Library
Jan 1, 2012
This engineering paper presents an intraoral version of the Tongue Drive System (iTDS) built into a dental retainer. It uses four 3-axis magnetoresistive sensors to detect tongue motion and transmits digitized data wirelessly via a dual-band 27/432 MHz transmitter, with configuration updates via a 13.56 MHz inductive…
A mm-sized wirelessly powered and remotely controlled locomotive implant.
Research
RF Safe Research Library
Jan 1, 2012
This engineering paper describes a mm-scale implantable device that is wirelessly powered and remotely controlled to locomote in a fluid medium. The prototype is reported to receive 500 µW from a 2 W, 1.86 GHz RF power signal at 5 cm and to support 2.5–25 Mbps data rates using asynchronous PWM on the carrier. The…
Citrate-capped gold nanoparticle electrophoretic heat production in response to a time-varying radiofrequency electric-field.
Research
RF Safe Research Library
Jan 1, 2012
This in vitro study examines RF-induced heat production in citrate-capped gold nanoparticle suspensions while minimizing confounding Joule heating from ionic buffers. It reports size-dependent heating detectable only for ≤10 nm particles, with heating scaling with concentration and surface area and being attenuated…
Effects of radiofrequency radiation on human ferritin: an in vitro enzymun assay.
Research
RF Safe Research Library
Jan 1, 2012
This in vitro study tested whether 900 MHz GSM mobile phone radiation affects ferritin measurements in human serum wells. Exposed wells (30 minutes, speech-mode phone) showed a statistically significant decrease in ferritin compared with unexposed controls. The authors propose RF exposure may influence…