Browse 8,655 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing all 8,655 studies
Unknown authors
Researchers used computer modeling to study how microwave radiation at 915 MHz and 2450 MHz penetrates a sphere representing biological tissue. They found that the original linear polarization of the waves becomes scrambled and changes direction inside the sphere, except in certain symmetry planes where some polarization is maintained.
Unknown authors
This technical report examined methods for measuring tissue impedance, the electrical resistance properties of biological tissues when exposed to electromagnetic fields. The research focused on developing four-electrode measurement systems and microcomputer-based data processing techniques. Understanding tissue impedance is crucial for assessing how electromagnetic fields interact with and penetrate human tissue.
Unknown authors
Researchers used specialized waveguide equipment to measure how microwave radiation at frequencies of 2.5-4.2 GHz is absorbed by anesthetized mice of different sizes. They found that each mouse has a specific resonant frequency where radiation absorption peaks, determined by the animal's size and weight. The study established mathematical relationships to predict these resonance points based on physical dimensions.
Unknown authors
This technical report examined electromagnetic frequency exposure measurement methodologies, focusing on microwave and radio frequency field strength assessment techniques. The research addressed measurement protocols for mixed EMF sources across different frequency ranges. This type of foundational measurement work is essential for establishing accurate exposure standards and safety guidelines.
Unknown authors
Researchers developed methods to accurately measure how microwave radiation interacts with human tissue by analyzing its electrical properties. The study focused on overcoming technical challenges that make it difficult to measure these properties in biological tissue compared to simple liquids. This foundational work helps scientists better understand and predict how microwave energy deposits in the human body.
Unknown authors
Researchers exposed rats to extremely high-strength 60-Hz electric fields (80-100 kV/m) for up to 4 months and found no effects on heart rate, blood pressure, or ECG patterns. The study was specifically designed to eliminate secondary effects like electrical shocks that may have influenced earlier conflicting research.
James D. Fahnestock, Ralph W. Logan
This technical research by Fahnestock examined methods for addressing electromagnetic interference (EMI) problems, focusing on broadband antenna systems and field strength measurements. The study explored susceptibility testing approaches to solve EMI issues in RF environments. While primarily technical in nature, this work contributes to understanding how electromagnetic fields interact with electronic systems.
Joseph M. Lary, David L. Conover, William E. Murray
Researchers reviewed radiofrequency radiation studies through 1982 and found a clear threshold for harmful effects at 2 watts per kilogram (W/kg) of body weight. Above this level, animals experienced severe health problems including death, dangerous temperature increases, and tissue damage. Below this threshold, effects were primarily temperature-related or involved changes to brain chemistry.
Unknown authors
This conference explored how electromagnetic fields and electrical stimulation can help heal broken bones. Researchers presented studies on using EMF therapy to speed up fracture healing in both laboratory cell cultures and living organisms. The research builds on decades of evidence that specific electromagnetic frequencies can stimulate bone growth and repair.
Hubert Fischer, Horst Müller
This early research paper examined whether radar waves pose health risks to humans, addressing growing concerns about microwave radiation exposure from radar systems. The study investigated the biological effects of radar-frequency electromagnetic fields on human health. This represents important foundational research into radar safety that helped establish early understanding of microwave radiation's potential health impacts.
R. J. Lindquist
This research by R.J. Lindquist examined galvanism, the therapeutic use of direct electrical current applied to the human body. The study investigated how galvanic current creates ion transfer effects and potential therapeutic benefits when electrical current flows through body tissues.
D.M. Deffenbaugh, R.J. Spiegel, J.R. Mann
Researchers developed a sophisticated computer model to predict how the human body heats up when exposed to electromagnetic fields. The model divided the body into thousands of small cells with different tissue properties and calculated thermal responses including metabolism, blood flow, and sweating. This represents an important advance in understanding how EMF exposure translates into measurable biological effects.
Marcia Lowery, Kenneth Dobbie
This research investigated suspected burns from diathermy equipment, which uses radiofrequency energy for medical procedures. The study examined cases where patients may have suffered thermal injuries from RF-based medical devices. This highlights the potential for RF energy to cause tissue damage when exposure levels are high enough.
Vernon E. Rose et al.
This research review examined US microwave exposure criteria, analyzing the biological effects and thermal responses used to establish safety standards. The study evaluated how current exposure limits account for both heating effects and potential non-thermal biological impacts. This type of analysis is crucial for understanding whether existing microwave safety standards adequately protect public health.
Martin L. Meltz
This study presents a proposal for a comprehensive system to track and document occupational chemical exposures while protecting both workers and employers. The author outlines a framework that would require minimal government oversight and low costs while providing crucial exposure data to healthcare providers and researchers for identifying health risks.
Unknown authors
This technical report analyzed total average radiated power from RF sources, examining power density patterns and safe distance calculations around antenna areas. The research focused on measuring how electromagnetic energy spreads from transmitting antennas and determining appropriate exposure limits based on power output.
Unknown authors
The Department of Health Education and Welfare issued a notice about potential measurement errors in EMF monitoring equipment, specifically addressing radio frequency interference problems with instruments like the Holaday 1500 and Narda 8100. The document highlighted how microwave ovens and other RF sources could interfere with accurate EMF readings, compromising measurement reliability.
John F. Davis et al.
This technical paper describes the development of equipment to measure tiny electrical responses in the brain that occur after stimulation. The research focused on creating better methods to detect these weak brain signals, which are normally hidden beneath electrical noise at the scalp surface.
Unknown authors
The FDA's Center for Devices and Radiological Health (CDRH) conducted internal research projects examining how microwave radiation affects biological systems. The studies focused on behavioral changes, cellular membrane effects, and how cells respond to electromagnetic exposure, including interactions with pharmaceutical compounds.
Unknown authors
This technical report appears to focus on radar irradiation measurement methodology, using hydrophones and transducers as detection equipment. The document likely presents figure legends explaining measurement setups and data visualization for radar electromagnetic field studies. While specific findings aren't available, this type of research contributes to understanding how radar systems generate and distribute electromagnetic energy.
Roger Budd, Przemyslaw Czerski, LeRoy W. Schroeder
This technical report by Roger Budd evaluated scientific literature on how RF and microwave radiation affects the immune system and cell membranes. The study used dielectric relaxation spectroscopy to examine cellular responses. The evaluation found mixed effects, suggesting some biological impacts occur but results vary across studies.
Jacques ERRERA
This early research by Jacques Errera examined how high-frequency radio waves (Hertzian waves) behave in colloidal media - substances with particles suspended in liquid, like biological tissues. The study investigated how these electromagnetic fields interact with molecular structures and cause dielectric effects. This foundational work helped establish our understanding of how radio frequency energy penetrates and affects complex biological systems.
Howard E. Clark
This technical report by Howard Clark examines United States government activities and policies related to non-ionizing electromagnetic radiation (EMF) safety programs. The document reviews how federal agencies coordinate radiation protection efforts for the general public and workers exposed to EMF sources like radio waves, microwaves, and power lines.
Unknown authors
This appears to be a journalistic investigation into microwave technology and its applications across radar, telecommunications, and other systems. The piece likely examined the growing use of microwave radiation in various technologies and explored potential health implications. Such reporting was important for bringing public attention to electromagnetic radiation exposure from everyday devices.
Edward H. Grant, Susan E. Keefe, Shin Takashima
Researchers studied how bovine serum albumin (a common protein) responds to radiowave and microwave frequencies from 200 to 10,000 MHz. They discovered that water molecules bind to proteins in a way that creates measurable electrical changes when exposed to these frequencies. This finding helps explain how biological tissues interact with electromagnetic fields at the cellular level.