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Showing results for: magnetic field

Bioelectricity in Morphogenesis

Research RF Safe Research Library Jan 1, 2025

This narrative review discusses bioelectricity arising from membrane potentials and its role in morphogenesis beyond neural tissues. It reports that evidence supports bioelectric signals influencing embryonic development, tissue repair, and disease-related processes, and summarizes cellular mechanisms for generating…

Occupational exposure to extremely low-frequency magnetic fields (ELF-MF) and postmenopausal breast cancer risk

Research RF Safe Research Library Jan 1, 2025

This population-based case-control study in Montréal (2008–2011) evaluated occupational extremely low-frequency magnetic field (ELF-MF) exposure and postmenopausal breast cancer risk using a job-exposure matrix linked to lifetime job histories. Overall, it reports no association between occupational ELF-MF exposure…

The effect of alpha-lipoic acid on liver damage induced by extremely low-frequency electromagnetic fields in a rat model

Research RF Safe Research Library Jan 1, 2025

This rat study assessed whether alpha-lipoic acid (ALA) modifies liver effects from extremely low-frequency magnetic field (ELF-MF) exposure. ELF-MF exposure (2 mT, 4 hours/day for 30 days) was associated with increased liver pathology and higher apoptosis markers (TUNEL, caspase-3) compared with other groups. ALA…

Female Crabs Are More Sensitive to Environmentally Relevant Electromagnetic Fields from Submarine Power Cables

Research RF Safe Research Library Jan 1, 2025

This controlled laboratory study examined sex-specific behavioral responses of juvenile shore crabs to magnetic fields intended to represent submarine power cable EMFs. Females showed consistent attraction to EMF-exposed zones across 500–3,200 μT exposures, whereas males showed no consistent spatial preference. The…

Systematic reviews and meta-analyses for the WHO assessment of health effects of exposure to radiofrequency electromagnetic fields, an introduction

Research RF Safe Research Library Jan 1, 2025

This editorial introduces a special issue supporting the WHO assessment of health effects from RF-EMF exposure, based on nine protocols and twelve systematic reviews developed over four years by more than 80 experts. It summarizes that human evidence for major cancers was moderate-certainty for no or only small…

Prospective long-term follow-up of patients with idiopathic environmental intolerance attributed to electromagnetic fields after a provocation trial

Research RF Safe Research Library Jan 1, 2025

This long-term follow-up recruited participants from an earlier IEI-EMF provocation trial and re-administered the same questionnaire by telephone. Of 70 completers (35 IEI-EMF patients and 35 referents), 62.9% of patients reported recovery after an average of 1.8 years, with most recoveries described as spontaneous.…

Acoustic Pressures in the Head from Pulsed Microwaves: Can They Explain the Havana Syndrome?

Research RF Safe Research Library Jan 1, 2025

This preprint discusses the microwave auditory effect, in which pulsed microwave exposure can produce perceived clicks or buzzing sensations. It considers whether acoustic pressures in the head generated by pulsed microwaves could explain health conditions such as "Havana Syndrome." The abstract emphasizes evaluating…

Instruments and Measurement Techniques to Assess Extremely Low-Frequency Electromagnetic Fields

Research RF Safe Research Library Jan 1, 2025

This paper presents a quantitative framework for selecting extremely low-frequency electromagnetic field (ELF-EMF) measurement instruments. It uses a weighted scoring matrix across six criteria and a logic-based flowchart to guide instrument choice based on operational needs. The framework is demonstrated in an…

Effect of Static Electromagnetic Field on Growth Parameters, Survival Rate, Sex Distribution, Ratio, and Liver and Gonadal Health of Zebrafish

Research RF Safe Research Library Jan 1, 2025

This animal study exposed zebrafish embryos to static electromagnetic fields for 63 days post-hatching across aquariums positioned 30–99 cm from the source, with an EMF-free control. The abstract reports strong shifts in sex distribution (including 100% female at the closest distance), markedly reduced survival in…

Exposure of human lymphocytes to sweeping-frequency extremely low frequency magnetic field

Research RF Safe Research Library Jan 1, 2025

This in vitro study exposed human umbilical cord blood lymphocytes to a sinusoidal sweeping-frequency ELF magnetic field (3–26 Hz) for 48 hours at amplitudes from 6 to 24 μT. It reports no statistically significant effects on DNA damage/repair foci or apoptosis measures overall. A non-significant trend at 8 μT showed…

Radiofrequency Electromagnetic Field Emissions and Neurodevelopmental Outcomes in Infants: A Prospective Cohort Study

Research RF Safe Research Library Jan 1, 2025

This prospective cohort study followed 105 neonates/infants for one year and measured household RF-EMF using a selective radiation meter, categorizing exposure into tertiles. Higher household RF-EMF exposure was associated with lower ASQ-3 neurodevelopmental scores, particularly in motor and problem-solving domains,…

Impact of Radiofrequency Electromagnetic Fields on Cardiac Activity at Rest: A Systematic Review of Healthy Human Studies

Research RF Safe Research Library Jan 1, 2025

This systematic review evaluated evidence on RF-EMF exposure and cardiac activity (heart rate and heart rate variability) in healthy humans at rest. Across 28 studies spanning 100 to 110,000 MHz and exposures from minutes to a week, most studies reported no significant effects on resting heart rate, and HRV findings…

Smartphone Usage Patterns and Sleep Behavior in Demographic Groups: Retrospective Observational Study

Research RF Safe Research Library Jan 1, 2025

This retrospective observational study analyzed Murmuras app data from 1074 participants in 2022 to examine demographic differences in smartphone use and nocturnal smartphone inactivity duration (a proxy for sleep-related behavior). Nighttime smartphone use increased, especially for social media and entertainment,…

Weak Radiofrequency Field Effects on Biological Systems Mediated through the Radical Pair Mechanism

Research RF Safe Research Library Jan 1, 2025

This 2025 review examines claims of biological effects from weak, nonthermal RF magnetic fields and evaluates whether such effects could be mediated by the radical pair mechanism (RPM). It reports that aligning RPM theory with low-level experimental observations remains difficult and that many experimental findings…

Magnetic Field Measurement of Various Types of Vehicles, Including Electric Vehicles

Research RF Safe Research Library Jan 1, 2025

This exposure assessment measured magnetic fields inside modern Japanese EVs, PHEVs, and ICEVs during actual driving using methods aligned with IEC 62764-1:2022. All measured magnetic flux density values were reported to be below ICNIRP public exposure reference levels. The study mapped in-cabin field sources and…

Analysis of Human Exposure to Electric and Magnetic Fields While Charging and Driving an Electric Vehicle

Research RF Safe Research Library Jan 1, 2025

This paper describes planned experimental measurements of electric and magnetic fields generated by electric vehicles during charging and driving. The abstract emphasizes that occupants can experience notable EMF exposure due to proximity to vehicle electrical systems, while stating that specific health risks in the…

Single-cell analysis reveals the spatiotemporal effects of long-term electromagnetic field exposure on the liver

Research RF Safe Research Library Jan 1, 2025

This animal study exposed mice to 2.45 GHz electromagnetic fields daily for up to 5 months and assessed liver effects using serum tests, lipidomics, histology, and single-cell/spatiotemporal transcriptomics. The authors report that hepatic cell types differed in sensitivity, with hepatocytes, endothelial cells, and…

Low frequency magnetic field exposure and neurodegenerative disease: systematic review of animal studies

Research RF Safe Research Library Jan 1, 2025

This systematic review synthesizes animal studies on low frequency magnetic field exposure in relation to neurodegenerative diseases. It reports no support for a causal induction of Alzheimer’s-type neuropathology in naive animals, while noting that evidence is too limited to draw strong conclusions for motor neuron…

Proteomic Characterization of Human Peripheral Blood Mononuclear Cells Exposed to a 50 Hz Magnetic Field

Research RF Safe Research Library Jan 1, 2025

This in vitro study compared proteomic profiles of PBMCs from three human donors after 24-hour exposure to a 50 Hz, 1 mT extremely low-frequency magnetic field versus unexposed cells. The abstract reports broad protein expression changes, including upregulation of proteins associated with metabolic processes and…

Microleakage of Amalgam Restorations after Exposure to Electromagnetic Fields of a Commercial Hair Dryer: An Ex-Vivo Study

Research RF Safe Research Library Jan 1, 2025

This ex-vivo experimental study tested whether electromagnetic fields from a commercial hair dryer affect microleakage of class V dental amalgam restorations in 100 extracted human teeth. Several exposure groups showed significantly higher dye-penetration microleakage scores than the unexposed control, while one…

Radiofrequency electromagnetic fields reduce bumble bee visitation to flowers

Research RF Safe Research Library Jan 1, 2025

This blinded, two-year study examined whether RF-EMF exposure at 2.4 and 5.8 GHz affects pollinator visitation to Salvia and Lavandula. The authors report no significant effect on honey bee visitation rates. They report a significant reduction in bumble bee visits per observation period under RF-EMF exposure, which…

Exposure to radiofrequency electromagnetic fields and IARC carcinogen assessment: Risk of Bias preliminary literature assessment for 10 key characteristics of human carcinogens

Research RF Safe Research Library Jan 1, 2025

This review examined experimental literature on whether RF-EMF exposures within ICNIRP (2020) limits affect IARC key characteristics of human carcinogens. It identified 159 articles and found that 38% of in vitro/in vivo measurements reported statistically significant effects, but higher study quality was associated…

A novel approach for assessments of radiofrequency electromagnetic fields exposure in buildings near telecommunication infrastructure

Research RF Safe Research Library Jan 1, 2025

This paper proposes a new methodology to better assess indoor RF-EMF exposure in buildings near telecommunication base station antennas by refining measurement-point selection. Implemented in four multi-storey buildings in Natal, Brazil, indoor electric field peaks and averages were reported to be substantially…

Auto-Induced Downlink Radiofrequency Electromagnetic Field Exposure at 3.5 GHz With Focusing Near the Head

Research RF Safe Research Library Jan 1, 2025

This exposure-assessment study uses FDTD simulations to evaluate auto-induced downlink RF-EMF exposure at 3.5 GHz when downlink energy is focused toward user equipment near the head. Exposure varied substantially by device position (ear, eyes, nose) and by the precoding technique used. The authors report that the…

In-Situ Measurements of Radiofrequency Electromagnetic Fields Measurements Around 5G Macro Base Stations in the UK

Research RF Safe Research Library Jan 1, 2025

This exposure assessment performed RF spot measurements in line-of-sight to 56 active 5G macro base stations across 30 publicly accessible UK locations. Power density was measured across 420 MHz–6 GHz under multiple scenarios (background, streaming, downlink speed test, and extrapolated SS-RSRP decoding). Reported…

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