Browse 8,655 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 1,361 studies from Glaser RF/Microwave Archive with extracted diagrams
James W. Frazer et al. · 1976
Air Force researchers exposed monkeys to extremely high-power 26 MHz radiofrequency radiation (500-1000 mW/cm²) for 6 hours to study thermal effects. The monkeys experienced immediate temperature increases but their bodies successfully regulated heat, reaching stable temperatures after 1.5 hours even at the highest exposure levels.
Robert H. Lenox et al. · 1976
This 1976 study developed microwave techniques to rapidly shut down brain enzymes in living rodents for research purposes. The researchers found that microwave energy could quickly and evenly inactivate brain enzymes while keeping the brain tissue intact for further study. This was primarily a methodological study to improve laboratory research techniques.
Morris E. Brodwin, Allen Taflove, John E. Matz · 1976
Researchers in 1976 developed a method to measure electric fields inside biological tissue using embedded diodes and dual-frequency microwave exposure. The technique could detect fields in 4 centimeters of soft tissue while keeping power density at 10 milliwatts per square centimeter. This represented early work on understanding how electromagnetic fields penetrate and distribute within living tissue.
Arthur W. Guy, Michael D. Webb, Carrol C. Sorensen · 1976
Researchers used scale models and thermographic imaging to measure how much radiofrequency energy the human body absorbs when exposed to high-frequency electromagnetic fields. They found that exposure to 31 MHz radiation at 10 mW/cm² can create power absorption densities as high as 5.63 W/kg in certain body regions. This pioneering 1976 study helped establish methods for measuring EMF absorption that are still used today.
James H. Merritt, Richard H. Hartzell, James W. Frazer · 1976
Researchers exposed rats to 1.6 GHz microwave radiation for 10 minutes, causing a 4°C temperature rise and measuring brain neurotransmitter changes. The radiation decreased key brain chemicals including norepinephrine, serotonin, and dopamine - effects that went beyond simple heating. This suggests microwave radiation can directly alter brain chemistry in ways that temperature alone cannot explain.
S. J. BAUM et al. · 1976
Researchers exposed rodents to intense electromagnetic pulse (EMP) radiation for 94 weeks, delivering 250 million pulses at extremely high field strength (447 kV/m). Despite this massive exposure, scientists found no biological effects on blood chemistry, chromosomes, fertility, or tumor development. This 1976 study suggests rodents can tolerate very high levels of pulsed electromagnetic radiation without measurable harm.
P. C. W. Davies, M. Stenhoff · 1976
This 1976 research examined ball lightning, a rare atmospheric phenomenon involving glowing spheres of light that appear during thunderstorms. The study investigated the electromagnetic properties of these mysterious formations. While not directly about health effects, this work contributes to our understanding of natural electromagnetic phenomena in the environment.
Colin A. Vincent · 1976
This 1976 research examined how ions move through liquid solutions when exposed to electric fields, studying the fundamental physics of electrical conductance and ion mobility. The work explored how charged particles behave under electrical influence in solutions. This foundational research helps us understand how electric fields interact with biological systems at the cellular level.
Multiple authors including Prof. E. Grant et al. · 1976
The 1976 International Microwave Power Institute symposium in Belgium brought together researchers to discuss microwave technology applications and biological effects. This early conference examined microwave heating systems, medical uses, and safety considerations across multiple industries. The proceedings represent foundational research into how microwave radiation interacts with biological systems.
Stuart O. Nelson · 1976
Researchers measured how 9.4 GHz microwave radiation interacts with rice weevils and wheat kernels by determining their dielectric properties (how materials respond to electromagnetic fields). This 1976 study established baseline data for understanding how microwaves penetrate biological tissues and agricultural materials. The findings help explain why certain frequencies are more effective for pest control and food processing applications.
K. Natarajan, N. Jagannathan · 1976
This 1976 study examined health hazards from radar exposure among operating personnel who worked with radar equipment. The research discussed various health risks and explored methods for monitoring field strength and protecting workers from radar radiation.
Neil T. Larsen · 1976
This 1976 study describes the development of a new technical instrument for measuring microwave power levels with improved accuracy. The researchers created a DC-substitution power meter that can measure bolometer resistance more precisely than previous instruments. This represents an advancement in the tools used to quantify radiofrequency energy levels.
Norbert N. Hankin · 1976
This 1976 technical report by N. Hankin examined the radiation characteristics of traffic radar systems used by law enforcement. The study focused on measuring and documenting the electromagnetic field emissions from police radar equipment. This research provided early documentation of radar exposure levels that officers and the public encounter from speed detection devices.
Norbert N. Hankin et al. · 1976
This 1976 EPA study analyzed major high-power radiofrequency sources including satellite terminals, radars, and broadcast transmitters to determine which posed the greatest environmental exposure risk. The research found that broadcast transmitters (radio and TV stations) represent the most environmentally significant source category due to their number, power levels, and proximity to populated areas.
Henry S. Ho · 1976
Researchers calculated how microwave energy from four different frequencies (433, 750, 918, and 2450 MHz) penetrates and absorbs into triple-layered tissue models of different sizes. The study found that energy absorption patterns are highly uneven and vary dramatically based on both the frequency used and the size of the tissue being exposed.
Peter Atkins · 1976
This 1976 research by P. Atkins examined how magnetic fields influence chemical reactions, particularly focusing on radical formation and spin states in molecular processes. The study explored magnetic field effects on homolysis (bond-breaking reactions) and catalytic processes. This foundational work helps explain the basic mechanisms by which magnetic fields can alter biological chemistry.
Robert C. Manthei, Zorach R. Glaser · 1976
Researchers exposed rabbits to pulsed microwave radiation at 2.17 GHz for 60 minutes daily over 60 days, then monitored their sleep patterns using brain wave recordings. The study aimed to determine if chronic microwave exposure would alter normal sleep cycles, particularly REM sleep stages. This research explored whether sleep disruption could serve as an early indicator of nervous system adaptation to electromagnetic radiation.
Ronald J. Spiegel · 1976
This 1976 study calculated how extremely low frequency (ELF) electromagnetic fields from Navy communications systems and high-voltage power lines induce electrical currents in spherical models representing humans and animals. The researchers developed mathematical models to predict field penetration and energy absorption, though they acknowledged the models could only estimate effects within an order of magnitude.
Tell R A · 1976
This 1976 technical report measured radiofrequency field intensities directly around an FM broadcast station antenna. The research documented actual RF exposure levels that people might encounter near broadcast facilities. This type of field measurement data helps establish baseline exposure levels from major RF sources in our environment.
Robert H. Lenox et al. · 1976
This 1976 study developed a microwave applicator to rapidly shut down brain enzymes in living animals for research purposes. The researchers found their modified microwave technique provided faster and more uniform enzyme inactivation while keeping brain tissue intact for further study. This represents early research into how microwave energy directly affects biological processes in the central nervous system.
Stewart J. Allen et al. · 1976
This 1976 study measured how much radiofrequency energy (10-50 MHz) was absorbed by live monkeys and human-like models when exposed to RF fields. Researchers used both living animals and artificial phantoms to understand power absorption patterns across different frequencies, comparing experimental results with theoretical predictions.
James C. Lin · 1976
This 1976 study examined how different types of electromagnetic waves penetrate mammalian heads using computer models. Researchers found that 918 MHz waves deposit more energy in brain tissue than 2450 MHz waves, making lower frequencies potentially more harmful despite similar overall power absorption.
James D. Grissett · 1975
This 1975 technical study addressed a critical problem in EMF research: when scientists try to study magnetic field effects on living systems, the equipment generates unwanted electric fields that interfere with results. Researchers developed a method using multiple capacitor banks to cancel out these electric fields, allowing cleaner separation of magnetic versus electric field effects.
O. P. Gandhi · 1975
This 1975 study by O.P. Gandhi examined how rats absorb radiofrequency radiation at different frequencies and orientations. The research found that RF absorption peaks dramatically when the animal's body length matches about one-quarter of the radiation's wavelength, creating a resonance effect that increases absorption by 2.5 to 3.5 times normal levels.
William B. Stavinoha et al. · 1975
Researchers exposed 4-day-old mice to high-frequency electromagnetic radiation and tracked their growth for up to 16 weeks. The study found no effects on growth or development in these young mice. This early research from 1975 suggests newborn mice can tolerate certain levels of RF exposure without obvious developmental impacts.