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37 posts

Cluster Analysis of RF-EMF Exposure to Detect Time Patterns in Urban Environment: A Model-Based Approach

Research RF Safe Research Library Jan 1, 2025

This paper applies a model-based clustering approach (Log-Normal Mixture Model) to continuous RF-EMF monitoring data from the Serbian EMF RATEL network in Novi Sad to characterize temporal exposure patterns. The analysis reports separation of night versus day exposure values and identification of daytime periods where exposure persists longer. The work is positioned as supporting improved understanding of when and where elevated exposures occur in urban environments.

Trends in Malignant and Benign Brain Tumor Incidence and Mobile Phone Use in the U.S. (2000-2021): A SEER-Based Study

Research RF Safe Research Library Jan 1, 2025

This SEER-based ecological study examined U.S. trends (2000–2021) in malignant and benign brain tumor incidence and compared them with national mobile phone subscription trends. Malignant brain tumor incidence in adolescents and adults declined slightly, while benign brain tumor incidence increased over time; temporal lobe tumors and benign acoustic neuromas showed little change. The authors interpret these patterns as not supporting an association between mobile phone use and increased brain cancer risk, while recommending continued surveillance given rising benign tumor incidence and potential latency.

Electrohypersensitivity: what is belief and what is known?

Research RF Safe Research Library Jan 1, 2025

This article addresses electrohypersensitivity (EHS) in the context of public health and EMF-related health concerns. It focuses on distinguishing beliefs about EMF effects from what is currently supported by scientific evidence. The provided text notes ongoing debate and concern and calls for critical assessment of both beliefs and empirical findings.

Deduction of Extrapolation Factors in Realistic Scenarios for In-Situ Assessment of 5G Base Stations

Research RF Safe Research Library Jan 1, 2025

This conference paper examines extrapolation factors used for in-situ EMF exposure assessment of 5G base stations in realistic indoor and outdoor scenarios. Using both frequency-selective and code-selective measurement approaches under varying traffic conditions, it reports substantial variability in extrapolated exposure estimates driven largely by antenna radiation patterns. Outdoor environments showed more stable extrapolation than indoor environments, highlighting challenges for reliable exposure assessment when antenna patterns and network configurations are not well characterized.

An approach for annual analysis of EMF exposure in highly sensitive areas of kindergartens and schools

Research RF Safe Research Library Jan 1, 2025

This paper proposes a time-averaging approach for analyzing long-term EMF exposure using time-series data from three sensors in a regulatory monitoring network. Sensors were installed at two kindergartens and one elementary school, and analyses reported daily/weekly patterns, differences between weekdays and weekends, and site-specific annual increases/decreases. The work emphasizes the value of continuous monitoring in sensitive areas, while not directly assessing health outcomes.

Terahertz Radiation Affects the Dynamics of Neurons by Decreasing Membrane Area Ratio

Research RF Safe Research Library Jan 1, 2025

This study reports that terahertz radiation decreased a neuronal membrane area ratio (cytosol relative to protruding membrane area) beginning on the first day of exposure and persisting during the exposure period. It further reports altered neuronal firing/discharge patterns and increased peak postsynaptic currents associated with the morphology change, supported by a kinetic model. The authors frame the findings as indicating significant effects of terahertz-frequency EMF on neural health and function and suggest potential neuromodulation applications.

Potential influence of geomagnetic activity on blood pressure statistical fluctuations at mid-magnetic latitudes

Research RF Safe Research Library Jan 1, 2025

This six-year time series analysis used over 500,000 blood pressure measurements from two mid-magnetic latitude cities in China to examine associations with geomagnetic activity (Ap index). The study reports that blood pressure fluctuations correlate with geomagnetic activity and share similar periodic patterns, unlike air temperature and PM2.5. The authors conclude that high geomagnetic activity periods may increase risk for individuals with hypertension and note potential clinical and policy relevance.

5G Radiofrequency Exposure Reduces PRDM16 and C/EBP � mRNA Expression, Two Key Biomarkers for Brown Adipogenesis

Research RF Safe Research Library Jan 1, 2025

This animal study exposed juvenile and young adult Wistar rats to 5G (3.5 GHz) or 2G (900 MHz) radiofrequency fields (1.5 V/m) for 1–2 weeks and measured brown adipose tissue-related gene expression by RT-qPCR. The abstract reports significant downregulation of PRDM16 and C/EBP mRNA after 5G exposure, while UCP1-dependent thermogenesis markers were not significantly changed at the transcriptional level. The authors interpret these findings as a potential partial disruption of brown adipocyte differentiation and raise EMF safety concerns, while calling for further confirmatory research.

Relationship between radiofrequency-electromagnetic radiation from cellular phones and brain tumor: meta-analyses using various proxies for RF-EMR exposure-outcome assessment

Research RF Safe Research Library Jan 1, 2024

Moon et al. (2024) report a systematic review and meta-analysis on cellular phone RF-EMR and brain tumor risk. The abstract summary states elevated risks for three brain tumor types in analyses considering ipsilateral (same-side) phone use and reports increased risk with heavy and long-term use. The text also highlights disagreement with the 2024 WHO review and raises methodological concerns about WHO conclusions.

Effect of Exposure to 900 MHz GSM Mobile Phone Radiofrequency Radiation on Estrogen Receptor Methylation Status in Colon Cells of Male Sprague Dawley Rats

Research RF Safe Research Library Mar 1, 2017

This animal study exposed male Sprague-Dawley rats to 900 MHz GSM mobile phone RF radiation for 4 hours and assessed ERα promoter methylation in colon tissue. The authors report altered ERα methylation patterns versus controls after RF exposure. They also report no radioadaptive response in ERα methylation following a subsequent 3 Gy Co-60 gamma challenge.

Microwave frequency electromagnetic fields (EMFs) produce widespread neuropsychiatric effects including depression

Research RF Safe Research Library Jan 1, 2016

This 2016 narrative review proposes that non-thermal microwave/lower-frequency EMFs act primarily through activation of voltage-gated calcium channels (VGCCs), with calcium channel blockers reported to block EMF effects. It summarizes animal, occupational, and epidemiological literature and reports that exposures from base stations, heavy mobile phone use, and wireless smart meters are associated with neuropsychiatric symptoms, sometimes with doseresponse patterns. The author concludes that multiple lines of evidence collectively support that non-thermal microwave EMF exposures can produce diverse neuropsychiatric effects including depression.

Biological effects from electromagnetic field exposure and public exposure standards

Research RF Safe Research Library Jan 1, 2008

This review describes public concerns and scientific reports of non-thermal biological effects from low-intensity ELF and RF exposures. It lists multiple health endpoints reported to be associated with ELF and/or RF and highlights the BioInitiative Report’s conclusion that a reasonable suspicion of risk exists at environmentally relevant levels. The authors argue that existing public exposure standards should be lowered and that mobile phone SAR guidelines should be revised based on biology and long-term risk claims.

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