Browse 8,700 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing all 8,700 studies
C. R. Jenkins, D. L. Durgin · 1975
Researchers tested 41 different types of integrated circuits from seven logic families to determine how much electromagnetic pulse (EMP) power it takes to damage them. They found specific failure thresholds for different circuit types and developed a model to predict when untested circuits might fail under EMP exposure.
D J Blundell · 1975
This 1975 technical paper describes the UK's primary standard for measuring microwave noise in the 4.1 GHz frequency band at extremely cold temperatures. The research focused on developing precise calibration methods for measuring equipment rather than studying biological effects. This work established technical foundations for accurately measuring microwave radiation levels.
Stewart J. Allen et al. · 1975
This 1975 study compared computer calculations with actual measurements of how radiofrequency energy (10-50 MHz) is absorbed by human and monkey bodies. Researchers found that prolate spheroid mathematical models accurately predicted RF absorption in test phantoms, but ellipsoid models better represented the actual shape of living bodies.
L. E. DAVIS, SUSAN SHURIN, R. T. JOHNSON · 1975
Researchers exposed embryonic chicken leg bones to electric fields in laboratory conditions to study bone growth effects. They found that pulsed electric fields affected bone development, while constant (static) fields showed no significant changes. This 1975 study helped establish that electromagnetic fields can influence biological processes in developing bone tissue.
Unknown authors · 1975
This 1975 technical report documented the development of a portable electromagnetic leakage monitor designed to detect microwave radiation at 915 MHz and 2450 MHz frequencies. The device was created as a surveyor tool to measure radiation levels from microwave equipment, providing early recognition of the need for monitoring electromagnetic emissions in workplace and consumer environments.
D.K. Cheng · 1975
This 1975 European microwave conference featured invited papers covering technical advances in microwave technology, including radar systems, optical waveguides, and electromagnetic applications. The conference represented the state of microwave engineering knowledge during a period when these technologies were rapidly expanding into commercial and consumer applications. While focused on technical development rather than health effects, this work laid the foundation for understanding microwave behavior that would later become crucial for EMF safety research.
P. S. RAI, H. J. BALL, S. O. NELSON, L. E. STETSON · 1975
Researchers exposed mealworm beetles to 39 MHz radiofrequency radiation and found it significantly reduced female reproduction rates. The effects were stronger with longer exposure times and higher power levels, and surprisingly, treating males had more impact on fertility than treating females directly.
G. N. Catravas · 1975
This 1975 technical report describes coating styrofoam rat cages with quinine for microwave research studies. The work focused on developing proper containment methods for laboratory animals during microwave exposure experiments. This represents early efforts to standardize laboratory protocols for studying microwave radiation effects on living organisms.
Chung-Kwang Chou · 1975
This 1975 doctoral thesis by C.K. Chou examined how electromagnetic fields affect the nervous system, focusing on neurophysiology and microphonics (electrical activity in nerve cells). The research explored the fundamental interactions between EMF exposure and neural function during the early years of EMF health research.
John M. Osepchuk · 1975
This 1975 IEEE technical paper by Osepchuk examined the commercial and industrial applications of microwave power technology. The research focused on understanding why microwave energy was becoming increasingly important for heating and processing applications in various industries. This work helped establish the foundation for modern microwave technology used in everything from food processing to medical treatments.
D. L. Conover et al. · 1975
This 1975 NIOSH study tested radiofrequency field-strength monitors designed to measure worker exposures near RF power sources (15-40 MHz). The preliminary survey found that at least 80% of RF sources exceeded the safety guidelines for both electric and magnetic fields specified in the 1974 ANSI standard. The research highlighted critical gaps in proper RF exposure monitoring techniques for worker protection.
DETLEF ROHL et al. · 1975
Researchers tested 16 cardiac pacemakers against powerful radar radiation in 1975, finding all devices showed interference at power levels between 0.025-62.5 mW/cm². Three of six implanted pacemakers malfunctioned when exposed to radar beams from 1.2 kilometers away, but modified pacemakers with special filtering remained protected even at extremely high exposure levels.
Unknown authors · 1975
The U.S. Navy sponsored research in 1975 examining the biological and ecological effects of extremely low frequency (ELF) electromagnetic fields, likely related to submarine communication systems. This government-funded study represents early official recognition that ELF fields warranted biological investigation. The research contributed to understanding potential environmental and health impacts of military ELF installations.
Mickey GH, Heller JH, Snyder E · 1975
This 1975 technical report investigated non-thermal hazards from radio frequency microwave exposure, focusing on genetic effects including chromosome aberrations in Chinese hamster cells and human lymphocytes. The research examined whether microwave radiation could cause cellular damage through mechanisms other than heating tissue.
Om P. Gandhi · 1975
This 1975 technical report by researcher OP Gandhi examined a proposed increase in radiation safety limits to 50 mW/cm² for frequencies between 3-30 MHz. Gandhi provided scientific commentary on whether this higher exposure threshold would adequately protect human health from electromagnetic radiation in this frequency range.
M. A. PLONUS · 1975
This 1975 technical study examined how electrical currents can ignite the carbon-impregnated foam used in anechoic chambers (specialized rooms designed to absorb electromagnetic waves). Researchers found that voltages above 100 volts could cause fires through direct contact or internal heating, and that burning this foam releases dense toxic smoke.
D.W. Peak, D.L. Conover, W.A. Herman, R.E. Shuping · 1975
This 1975 government report documented power density measurements from marine radar systems, establishing baseline radiation levels from ship-based radar equipment. The research focused on quantifying electromagnetic field exposure levels that maritime workers and nearby populations might encounter from these high-powered radar installations.
Gabriel G. Nahas et al. · 1975
Researchers exposed rats to magnetic fields between 200-1200 Gauss for one month and found no toxic effects or tissue damage. The only notable finding was that young rats exposed to magnetic fields gained more weight than unexposed rats. The study concluded these field strengths should be safe for human exposure lasting several hours.
Michaelson, 1975 · 1975
This 1975 technical report by Michaelson examined microwave exposure standards for personnel safety, focusing on power density limits and radiation protection guidelines. The research addressed how to establish safe exposure levels for workers and the public around microwave-emitting equipment. This work helped establish foundational safety standards that influence modern EMF exposure guidelines.
Watson et al. · 1975
This 1975 study examined why pulsed electric fields enhance embryonic chick bone growth while static (steady) electric fields do not. Researchers found that tissue conductivity causes static electric fields to decay rapidly within biological tissue, explaining why only pulsed fields show biological effects.
Roberts Rugh, Edward I. Ginns, Henry S. Ho, William M. Leach · 1975
Researchers exposed 1,096 mice to microwave radiation to study how female reproductive cycles and pregnancy affect radiation sensitivity. They found female mice were more vulnerable during estrus (heat) than other cycle phases, and pregnant mice exposed on day 8 of pregnancy developed birth defects including brain malformations at doses as low as 5 calories per gram of body weight. The study revealed complex, non-linear dose-response relationships that make predicting biological effects difficult.
Carl H. Durney, Curtis C. Johnson, Habib Massoudi · 1975
This 1975 study used mathematical modeling to analyze how microwave radiation penetrates and is absorbed by a prolate spheroid (egg-shaped object) representing the human body. The research found that power absorption patterns change dramatically depending on how the body is oriented relative to the electromagnetic field source.
Medical Instrument Research Associates, Inc. · 1975
This 1975 technical report examined ophthalmic diathermy, a medical procedure using 13.56 MHz radiofrequency energy to create controlled heating in eye tissues. The technique was used to create chorioretinal adhesions in retinal surgery, representing an early application of RF energy in precision medical treatments.
Unknown authors · 1975
This 1975 Microwave Journal annual index compiled technical articles, application notes, and research on microwave technology. The index catalogued the year's microwave engineering developments, including both industrial applications and emerging research on microwave interactions with biological systems. This type of technical documentation helps track the evolution of microwave technology and early awareness of potential health effects.
Allen Taflove, Morris E. Brodwin · 1975
Researchers used computer modeling to calculate how microwave radiation at 750 MHz and 1.5 GHz penetrates and heats the human eye. At 100 mW/cm² power density and 1.5 GHz frequency, the model predicted dangerous hot spots exceeding 104°F (40.4°C) would form at the center of the eyeball.