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Showing results for: shielding

Effects of exposure to GSM mobile phone base station signals on salivary cortisol, alpha-amylase, and immunoglobulin A.

Research Paper Discussions

Effects of exposure to GSM mobile phone base station signals on salivary cortisol, alpha-amylase, and immunoglobulin A Christoph Augner 1, Gerhard W Hacker, Gerd Oberfeld, Matthias Florian, Wolfgang Hitzl, Jörg Hutter, Gernot Pauser Affiliations Expand PMID: 20708499 DOI: 10.1016/S0895-3988(10)60053-0 Abstract…

Why the “99% Blocked” Claim is a Myth: The Best Anti-Radiation Phone Case

Independent Voices RF Safe Feb 1, 2026

RF Safe argues that marketing claims such as “blocks 99% of EMF” for anti-radiation phone cases are misleading because many “lab tests” are reportedly performed on shielding fabric alone rather than on a working phone. The piece frames a phone as a “dynamic radio” and suggests real-world performance may differ from…

RF Safe’s QuantaCase (also known as TruthCase)

Resources RF Safe Jan 16, 2026

RF Safe promotes its QuantaCase (also called TruthCase) as a leading “anti-radiation” phone case for 2026, emphasizing a directional shielding design intended to deflect RF energy away from the body. The article argues the product aligns with consumer-safety guidance such as keeping phones away from the body and…

The Anti‑Radiation Phone Case Market Runs on Percentages. RF Safe Refuses to Sell One.

Independent Voices RF Safe Jan 16, 2026

RF Safe critiques the anti-radiation phone case market for relying on headline percentage-blocking claims that may reflect tests of shielding material rather than real-world phone behavior in a case on a live network. The article argues that poorly designed or misused shielding cases can interfere with a phone’s…

The Anti Radiation Case That Refuses to Sell a Number

Independent Voices RF Safe Jan 16, 2026

RF Safe argues that many “anti-radiation” phone cases market misleading “% blocked” claims based on lab material tests rather than whole-device, real-world performance. The article promotes RF Safe’s TruthCase/QuantaCase as a “physics-first” design that avoids advertising a single blocking percentage and emphasizes…

Best Anti‑Radiation Phone Case 2026: Why QuantaCase (RF Safe) Is the Stand‑Out Choice

Resources RF Safe Jan 3, 2026

RF Safe argues that many “anti-radiation” phone cases use misleading marketing (e.g., fabric-swatch tests, vague “FCC tested” claims) and that some designs may cause phones to increase transmit power if they interfere with antennas. The article provides a checklist of red flags (magnets/metal plates, detachable…

This piece does not argue that radiofrequency (RF) electromagnetic fields “cause” any single disease.

Independent Voices RF Safe Dec 16, 2025

An RF Safe commentary argues that persistent, pulsed “non-native” RF electromagnetic noise can disrupt biological “timing coherence,” leading to downstream “fidelity losses,” particularly in electrically active tissues. It also emphasizes that smartphones are adaptive RF systems that change transmit power and…

Best Anti-Radiation Phone Case 2026: Why QuantaCase is the Only Truthful Choice in a Sea of Scams

Independent Voices RF Safe Dec 11, 2025

RF Safe promotes its QuantaCase as the only “truthful” anti-radiation phone case and argues that many competing shielding cases use misleading “percent blocking” claims and can sometimes increase user exposure depending on design and phone behavior. The post mixes product marketing with broader claims about RF-EMF…

Why Percentage Claims in Anti-Radiation Phone Cases Are Deceptive: The Truth Behind RF Shielding

Independent Voices RF Safe Dec 11, 2025

RF Safe argues that common marketing claims for anti-radiation phone cases (e.g., “99% shielding”) are misleading because they often rely on controlled lab fabric tests that do not reflect real-world phone use. The post claims factors like shield orientation, phone transmit-power increases under obstruction,…

Electromagnetic Interference in the Modern Era: Concerns, Trends, and Nanomaterial-Based Solutions

Research RF Safe Research Library Jan 1, 2025

This review surveys the evolution, sources, and consequences of electromagnetic interference (EMI) in modern environments shaped by IoT, 5G, and smart devices. It discusses disruptions to electrical and medical devices, ecological impacts on wildlife, and potential risks to human health from EMI exposure. The paper…

Comparison Between Broadband and Personal Exposimeter Measurements for EMF Exposure Map Development Using Evolutionary Programming

Research RF Safe Research Library Jan 1, 2025

This exposure-assessment study compares RF-EMF exposure maps produced using a broadband meter versus a personal exposimeter and aims to correct personal exposimeter readings to match broadband-based maps. The authors report that LOS/NLOS-specific correction factors reduce discrepancies, particularly improving LOS…

Earth's magnetic field and its relationship to the origin of life, evolution and planetary habitability

Research RF Safe Research Library Jan 1, 2025

This review synthesizes evidence on Earth's geomagnetic field history and discusses how early establishment of the field (at least 4.2 billion years ago, inferred from zircon magnetism) may have supported planetary habitability via radiation shielding and water preservation. It highlights a proposed near-collapse of…

The Use of Induction Sensors and Helmet-Based Shielding Technology to Identify Differences in Electromagnetic Fields in Patients With Cranial Neurological Disease Versus Healthy Controls.

Research RF Safe Research Library Jan 1, 2023

This observational study used induction sensors with a Mu-metal and copper mesh shielded helmet to measure cortically generated EMFs in patients with cranial neurological disease and compare patterns to previously obtained healthy control data. Fourteen patients (ages 14–81) were analyzed and compared with four…

Measuring the Electromagnetic Field of Human Subjects Using Induction Sensors and a Shielded Helmet Without the Need for a Shielded Room.

Research RF Safe Research Library Jan 1, 2022

This study evaluated whether a lightweight Mu-metal and copper mesh shielded helmet with EMF channels could reduce external electromagnetic interference enough to measure cortically generated EMF using non-contact induction sensors without a shielded room. In five volunteers performing motor, verbalization, and…

Measuring the Electromagnetic Field of the Human Brain at a Distance Using a Shielded Electromagnetic Field Channel.

Research RF Safe Research Library Jan 1, 2022

This study describes a non-contact, non-invasive method to measure electromagnetic activity attributed to the human brain using a lightweight helmet and a shielded EMF channel around a sensor. Volunteers performed metronome-synchronized tasks intended to elicit movement, thoughts of movement, and emotional thought.…

Evaluating the Intrinsic Electromagnetic Field Generated by Neurons From Repetitive Motor Activities in Humans With a Non-contact Non-invasive Electromagnetic Helmet.

Research RF Safe Research Library Jan 1, 2022

This study reports a non-contact, non-invasive helmet system intended to measure intrinsic electromagnetic fields generated by the human brain during stereotyped motor tasks. Volunteers performed repetitive tapping, and the authors report discernible wave changes compared with rest and baseline measurements without a…

Magnetic characterization of Mumetal® for passive shielding of stray fields down to the nano-Tesla level

Research RF Safe Research Library Feb 1, 2021

This engineering study addresses stray magnetic fields as a performance-limiting imperfection for the Compact Linear Collider (CLIC), where simulations indicate sensitivity to fields on the order of 0.1 nT. It presents DC and AC magnetic characterization of two Mumetal® samples (annealed in final form vs…

Mitigation measures of electromagnetic field exposure in the vicinity of high frequency welders.

Research RF Safe Research Library Jan 1, 2017

This paper describes in situ EMF measurements around industrial high frequency (dielectric) welders, framed by Polish labor safety regulations aligned with EU Directive 2013/35/EU. It reports real-world scenarios where excessive EMF exposure can occur near welders, often linked to errors or omissions during…

Extremely low-frequency magnetic fields of transformers and possible biological and health effects

Research RF Safe Research Library Jan 1, 2014

This study measured leakage extremely low-frequency (ELF) magnetic fields around a transformer located on the bottom floor of a three-floor apartment building in Istanbul. The measurements were evaluated against international exposure standards, and the authors report exposures higher than the IARC threshold magnetic…

Cyanide orientational ordering and copper electric field gradients in CuCN.N2H4.

Research RF Safe Research Library Jan 1, 2009

This study reports solid-state NMR (13C and 15N MAS) measurements on CuCN·N2H4 to extract copper quadrupole coupling constants and characterize cyanide ordering. Ab initio calculations were used to determine electric field gradient and chemical shielding tensor orientations needed for spectral analysis. The authors…

Electronic response properties of carbon nanotubes in magnetic fields.

Research RF Safe Research Library Jan 1, 2008

This computational study investigates magnetic linear response properties of achiral and chiral carbon nanotubes using first-principles electronic structure methods. It computes magnetic shielding inside and outside nanotubes due to electronic currents induced by external magnetic fields applied parallel or…

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