A Route to Chaotic Behavior of Single Neuron Exposed to External Electromagnetic Radiation.
Research
RF Safe Research Library
Jan 1, 2017
This computational study investigates nonlinear membrane-potential dynamics in a Fitzhugh-Nagumo single-neuron model that includes an external electromagnetic radiation term. The authors report that increasing the frequency of an external transmembrane current leads to mode selection among periodic, quasi-periodic,…
Influence of Growth Rate and Magnetic Field on Microstructure and Properties of Directionally Solidified Ag-Cu Eutectic Alloy.
Research
RF Safe Research Library
Jan 1, 2016
This materials study examined how growth rate and an external magnetic field affect microstructure and properties in directionally solidified Ag-Cu eutectic alloys. The lamellar spacing followed the Jackson-Hunt model with a reported constant of 5.8 µm³/s. Increasing magnetic field tilted eutectic growth and…
Radio frequency induced heating of an insulated wire during magnetic resonance imaging.
Research
RF Safe Research Library
Jan 1, 2016
This engineering study investigated RF-induced power deposition near straight insulated leads in an MRI context under different incident electric field profiles. Using 3-D electromagnetic simulations, the authors compared simulation-derived power deposition with implant model predictions. For the setups examined,…
An innovative therapy for peri-implantitis based on radio frequency electric current: numerical simulation results and clinical evidence.
Research
RF Safe Research Library
Jan 1, 2016
This conference paper describes a peri-implantitis therapy using radio frequency electric current and presents numerical simulations alongside referenced clinical evidence. The abstract reports 81% successful treatment across 66 implants in 46 patients. FEM modeling suggests current preferentially concentrates in…
Variation of radio frequency induced power deposition due to second surrounding tissue.
Research
RF Safe Research Library
Jan 1, 2016
This engineering study investigated RF-induced power deposition from insulated leads of different lengths positioned near two surrounding tissues. The authors report that both the electromagnetic lead models and the resulting power deposition depended strongly on the electrical properties of both tissues. Using a…
In-to-out body path loss for wireless radio frequency capsule endoscopy in a human body.
Research
RF Safe Research Library
Jan 1, 2016
This engineering study uses a 3D electromagnetic solver to simulate in-to-out body RF path loss for a wireless capsule endoscopy link. The capsule antenna is tuned for the 402 MHz MICS band while accounting for human body properties. The authors examine how capsule misalignment, rotation, and the human body model…
Evaluation of the electric field in the brain during transcranial direct current stimulation: A sensitivity analysis.
Research
RF Safe Research Library
Jan 1, 2016
This computational study used finite element modeling to estimate the electric field distribution in the brain during tDCS for two electrode montages targeting the left DLPFC. It systematically varied isotropic tissue conductivity profiles to assess sensitivity of predicted E-field magnitude and components in the…
Measurement and Modeling of Personal Exposure to the Electric and Magnetic Fields in the Vicinity of High Voltage Power Lines.
Research
RF Safe Research Library
Jan 1, 2016
This study reports experimental measurements and numerical modeling of electric and magnetic fields near a high voltage substation in Annaba, Algeria. Field intensities were measured at multiple heights intended to correspond to sensitive human body regions and were validated using finite element simulations. The…
Effect of zero magnetic field on cardiovascular system and microcirculation.
Research
RF Safe Research Library
Jan 1, 2016
This study examined cardiovascular and microcirculation responses in healthy adults under zero magnetic field conditions generated by an "ARFA" magnetic field modeling facility. Participants were tested twice, once in zero magnetic field and once in a sham condition, with measures including capillary blood flow,…
Environmental Radiofrequency Electromagnetic Fields Exposure at Home, Mobile and Cordless Phone Use, and Sleep Problems in 7-Year-Old Children
Research
RF Safe Research Library
Oct 28, 2015
This cohort study of 2,361 seven-year-old children assessed modeled residential/school RF-EMF from base stations, reported indoor sources, and children’s mobile/cordless phone use in relation to parent-reported sleep quality. Most sleep subscales were not associated with base-station RF-EMF, though sleep duration…
Memory performance, wireless communication and exposure to radiofrequency electromagnetic fields: A prospective cohort study in adolescents
Research
RF Safe Research Library
Jan 1, 2015
This prospective cohort study followed 439 adolescents for one year to assess whether wireless device use and estimated RF-EMF dose were associated with changes in memory performance. Higher cumulative mobile phone call duration and higher modeled RF-EMF brain and whole-body dose were associated with decreases in…
The role of the location of personal exposimeters on the human body in their use for assessing exposure to the electromagnetic field in the radiofrequency range 98-2450 MHz and compliance analysis: evaluation by virtual measurements
Research
RF Safe Research Library
Jan 1, 2015
This study used numerical modeling with a human body model to evaluate how the placement of a single body-worn personal exposimeter affects RF electric-field measurements in the 98–2450 MHz range. Across 256 simulated exposure scenarios, the body substantially altered measured values compared with the unperturbed…
Validity of at home model predictions as a proxy for personal exposure to radiofrequency electromagnetic fields from mobile phone base stations
Research
RF Safe Research Library
Jan 1, 2015
This exposure-assessment study compared modeled at-home RF-EMF from mobile phone base stations (NISMap) with 24-hour personal measurements in 93 Dutch participants. Correlations were low to moderate, with better agreement for time spent at home than for the full 24-hour period. While modeled estimates could rank…
[Modulation of Ca(2+)-Dependent Proteiolysis under the Action of Weak Low-Frequency Magnetic Fields].
Research
RF Safe Research Library
Jan 1, 2015
This animal/model-organism study examined whether weak low-frequency magnetic fields tuned to a proposed parametric resonance for calcium ions affect Ca(2+)-dependent proteolysis. It reports time-dependent modulation of Ca(2+)-dependent proteinase activity in fish and whelk and states that a minimal exposure time for…
[Radiofrequency ablation can reverse the abnormal circulating microRNA expression changes in patients with atrial fibrillation].
Research
RF Safe Research Library
Jan 1, 2015
This pre/post study measured circulating microRNA profiles in 30 atrial fibrillation patients before and 3 months after radiofrequency ablation, comparing results with 10 healthy controls. The authors report that numerous miRNAs differed from controls at baseline and shifted after ablation, with several highlighted…
[Early and Delayed Effects of Radio Frequency Electromagnetic Fields on the Reproductive Function and Functional Status of the Offspring of Experimental Animals].
Research
RF Safe Research Library
Jan 1, 2015
This experimental animal study examined RF EMF effects on reproduction in CBA mice and on the morphofunctional status of their offspring under two exposure models. The authors report that repeated short-term RF EMF exposure (5 days, 10 minutes per day, 1.2 mW/cm2) affected pregnancy course, litter number, fertility,…
In Vivo Wireless Monitoring System of Cardiovascular Force Data.
Research
RF Safe Research Library
Jan 1, 2015
This paper describes development of a fully implantable biotelemetry system that wirelessly transmits cardiac biomechanical force data along with ECG. The system uses a microcontroller with a bidirectional RF transceiver and was tested in a porcine model. The authors report successful transmission and recording of…
Effect of marination in gravy on the radio frequency and microwave processing properties of beef.
Research
RF Safe Research Library
Jan 1, 2015
This engineering/food science study measured dielectric constant (ε'), dielectric loss factor (ε″), and power penetration depth in beef and gravy preparations across 27–1,800 MHz and 20–130 °C. The dielectric properties generally decreased with increasing frequency, and penetration depth decreased with increasing…
Electromagnetic fields counteract IL-1β activity during chondrogenesis of bovine mesenchymal stem cells.
Research
RF Safe Research Library
Jan 1, 2015
This in vitro study examined whether electromagnetic fields (EMFs) influence chondrogenic differentiation of bovine mesenchymal stem cell pellets, with and without the inflammatory cytokine IL-1β. The authors report EMFs had limited effects on chondrogenesis in the absence of inflammation, but in the presence of…
Experimental model for ELF-EMF exposure: Concern for human health.
Research
RF Safe Research Library
Jan 1, 2015
This in vitro study examined whether extremely low frequency EMF exposure alters MCP-1 expression in several human cell lines. Cells were exposed to a 50 Hz sinusoidal field at 1 mT (rms), and the authors report that MCP-1 expression was modified in a cell-type-dependent manner. The findings are described as…
Exposure to radio-frequency electromagnetic fields from broadcast transmitters and risk of childhood cancer: a census-based cohort study
Research
RF Safe Research Library
Apr 1, 2014
This census-based cohort study in Switzerland examined modeled RF-EMF exposure from broadcast transmitters and childhood cancer risk using two cohort approaches. Across analyses, no association was reported for all cancers or childhood leukemia. Findings for CNS tumors were inconsistent, and the incidence density…
Impact of 900 MHz electromagnetic field exposure on main male reproductive hormone levels: a Rattus norvegicus model
Research
RF Safe Research Library
Jan 1, 2014
This animal experiment exposed 20 adult male Sprague-Dawley rats to 900 MHz RF-EMF for 1, 2, or 4 hours per day over 30 days, with a sham-exposed control group. Hormone levels (FSH, LH, inhibin B, activin B, prolactin, testosterone) were measured by ELISA before exposure and at 15 and 30 days. After 30 days, the long…
Electromagnetic radiation (Wi-Fi) and epilepsy induce calcium entry and apoptosis through activation of TRPV1 channel in hippocampus and dorsal root ganglion of rats
Research
RF Safe Research Library
Jan 1, 2014
This animal study examined 2.45 GHz Wi-Fi exposure in a PTZ-induced epilepsy rat model using freshly isolated hippocampal and DRG neurons. The authors report that epilepsy increased Ca(2+) influx, oxidative stress markers, and apoptosis-related outcomes, and that Wi-Fi exposure produced additional increases in…
Assessment of the neurotoxic potential of exposure to 50Hz extremely low frequency electromagnetic fields (ELF-EMF) in naïve and chemically stressed PC12 cells
Research
RF Safe Research Library
Jan 1, 2014
This in vitro study tested acute (30 min) and sub-chronic (48 h) 50 Hz ELF-EMF exposure up to 1000 µT in naïve and chemically stressed PC12 cells. Across assays of Ca2+ homeostasis, ROS production, and membrane integrity, the study reports no consistent or measurable neurotoxic effects under the tested conditions.…
Pulsed electromagnetic field treatment enhances healing callus biomechanical properties in an animal model of osteoporotic fracture
Research
RF Safe Research Library
Jan 1, 2014
This animal study evaluated whether daily pulsed electromagnetic field (PEMF) treatments improve delayed fracture healing in skeletally mature ovariectomized (OVX) rats. By 6 weeks, PEMF-treated rats showed improved hard callus elastic modulus and radiographic evidence of better callus bridging compared with sham…