Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 1,087 studies from Glaser RF/Microwave Archive with extracted diagrams
D. D. Eley, R. Pethig · 1971
Researchers in 1970 developed a new technique to measure how microwave radiation affects electrical properties in biological materials like rat liver cells and plant chloroplasts. The study measured how microwaves cause charged particles to move differently through living tissues, providing early evidence that electromagnetic fields can alter the electrical behavior of biological systems.
Sol M. Michaelson, Arthur J. Moss · 1971
This 1971 research examined how environmental electromagnetic fields interfere with implanted cardiac pacemakers. The study investigated radiofrequency and microwave sources that could disrupt pacemaker function. This was among the earliest scientific work documenting EMF interference with life-sustaining medical devices.
J. B. MULDER · 1971
This 1971 review examined how electromagnetic energy waves, including visible and invisible light, affect animal behavior patterns. Researchers found that various forms of electromagnetic exposure altered reproductive ability, offspring sex ratios, activity levels, and lifespan in animals. However, studies showed widely inconsistent results even under seemingly similar conditions, highlighting the need for better controlled research.
Sol M. Michaelson, Joe W. Howland, Wm. B. Deichmann · 1971
Researchers exposed dogs to high-intensity microwave radiation at two frequencies (24,000 MHz and 1,285 MHz) for extended periods - up to 2,631 hours over 20 months. Despite power levels 400-500 times higher than typical cell phone exposure, no significant health effects were observed in the animals.
Mills · 1971
This 1971 government document cataloged microwave radiation research projects, examining both thermal (heating) and non-thermal biological effects. The research covered genetic impacts, epidemiological studies, and medical applications like diathermy across various organisms. This represents early recognition that microwave radiation could affect living systems beyond just heating tissue.
Barry Miller · 1971
This 1971 military analysis examined Soviet radar systems to understand their defense doctrine and capabilities. The study focused on VHF and UHF radar technologies used for missile tracking and defense systems. While primarily a military intelligence assessment, it provides insights into high-power radar operations that would later inform civilian EMF exposure research.
William A. Mills et al. · 1971
As of February 1, 1971, the FCC listed 892 TV stations and 7,868 broadcasting stations. The paper concluded that while no hazards had been definitively established at current ambient power levels, the increasing number of radiation sources and exposure levels necessitated measurement and evaluation before possible effects became apparent.
Lyman J. Hardeman · 1971
This 1971 research examined how the Federal Aviation Administration used microwave imaging technology to detect weapons and prevent aircraft hijackings. The study focused on phase-locked antenna systems and holographic techniques for security screening applications.
Lobanova EA, Goncharova AV · 1971
Soviet researchers in 1971 studied how ultrashort and short wave electromagnetic fields affected learned behaviors in white rats. This early research examined whether RF radiation could disrupt the conditioned reflexes that animals use for survival and adaptation. The study represents pioneering work investigating how electromagnetic fields might interfere with basic brain and nervous system functions.
Paul F. Wacker, Ronald R. Bowman · 1971
This 1971 technical analysis examined the fundamental challenges in measuring electromagnetic field exposure near powerful sources. The study found that standard measurement tools based on simple wave propagation were inadequate for complex real-world EMF environments involving multiple interference patterns and varying polarizations. The research highlighted critical gaps in hazard assessment methods that persist today.
V. A. Konovalenko, V. A. Yamshanov · 1971
Soviet researchers in 1971 measured how human blood serum responds to radio frequencies between 1-30 MHz, finding that salt content primarily determines the electrical properties. They discovered that proteins in blood only become electrically significant when salt levels are reduced to very low concentrations.
Herman P. Schwan · 1971
This landmark 1971 study by Herman Schwan examined how microwave and radio frequency radiation interacts with human tissues, establishing foundational principles still used today. The research found that non-thermal biological effects only occur at field strengths that are already thermally dangerous, and proposed a safety guideline of 3 mA/cm² current density for frequencies between 1-1000 MHz.
Byron D. McLees, Edward D. Finch, Marion L. Albright · 1971
Researchers exposed male rats to 13.12 MHz radio frequency radiation for up to 44 hours after liver surgery to test for genetic damage during tissue regeneration. They found no statistically significant differences in cell division, chromosomal damage, or tissue structure compared to unexposed rats. This suggests RF radiation at non-heating levels may not cause detectable genetic harm during rapid cell growth.
Mansel Davies, P. Maurel, A. H. Price · 1971
Researchers in 1971 measured how synthetic protein molecules absorb microwave radiation at frequencies from 3 to 72 GHz. They discovered these helical (spiral-shaped) molecules show distinct absorption patterns between 2-15 GHz, suggesting the protein structure itself vibrates like a spring when exposed to microwaves. This was early evidence that biological molecules can interact with microwave frequencies in specific ways.
Shapiro AR, Lutomirski RF, Yura HT · 1971
This 1971 study developed mathematical models to calculate how microwave radiation penetrates and heats the human head structure. Researchers found that simplified flat-surface models drastically underestimate radiation absorption, while their spherical head model revealed complex heating patterns within brain tissue layers.
Barry Miller · 1971
This 1971 technical analysis examined Soviet radar technology developments, focusing on military applications including surface-to-air missile (SAM) systems and anti-aircraft fire control radars. The research documented the expanding electromagnetic spectrum capabilities of Soviet radar systems during the Cold War era.
N. N. OSBORNE, B. POWELL, G. A. COTTRELL · 1971
This 1971 study examined how electrical stimulation affected amino acid levels in the snail brain. Researchers stimulated selected nerve trunks of Helix pomatia snails with square wave pulses (15 V, 10 msec, 3 per second) for 1 hour and then analyzed the circumoesophageal ganglia. Tyrosine, tryptophan, ornithine, lysine and several other amino acids decreased, while 5-hydroxyindole increased by about 24%.
Sol M. Michaelson · 1971
This comprehensive 1971 review examined the biological effects of microwave radiation exposure, finding that organisms can experience thermal stress at specific frequencies and power levels. The analysis covered effects on multiple body systems including the eyes, blood formation, thyroid, reproductive organs, nervous system, and cardiovascular system. The review aimed to separate scientifically substantiated effects from speculative claims about microwave exposure risks.
S. M. Michaelson · 1971
This 1971 review documented the U.S. military's Tri-Service Program, the first large-scale coordinated effort to study microwave radiation health effects from 1957 onwards. The program tested frequencies from 200 to 24,500 MHz on whole bodies, organs, cells, and enzymes under various exposure conditions. The research validated the 10 milliwatts per square centimeter safety standard that became the foundation for modern EMF exposure limits.
Henry S. Ho et al. · 1971
Researchers tested how microwave radiation at frequencies from 433 to 2450 MHz heats simulated human limbs made of materials mimicking fat, muscle, and bone. They found that theoretical calculations matched experimental results using thermal imaging, showing how microwaves penetrate and heat different tissue layers. This work was intended to help design medical heating devices for therapeutic treatments.
E. ISRAELI, Z. KARNI, Z. SCHUR, D. BARZILAI · 1971
This 1971 laboratory study investigated how static magnetic fields affect collagen production in tissue cultures grown outside the body. The research examined whether magnetic field exposure influences how fibroblast cells produce collagen, the protein that forms connective tissue. This early work helped establish the foundation for understanding how magnetic fields interact with cellular processes.
André-Jean Berteaud et al. · 1971
This 1971 French study investigated whether pulsed and modulated electromagnetic radiation affects the development of Trypanosoma equiperdum infections in laboratory animals. The research examined the relationship between UHF electromagnetic wave exposure and parasitemia (parasite levels in blood). This represents early research into how electromagnetic fields might influence infectious disease progression.
T. W. Barrett · 1971
This 1971 theoretical physics study examined how electromagnetic fields carry information and how biological sensory systems might process that information. The research described different types of information units (quanta) that can exist within electromagnetic fields, including both amplitude and frequency modulated forms. The study concluded that researchers must determine the minimum information unit that any biological sensory system can detect.
Dolores Rotkovska, A. Vacek · 1971
Researchers exposed mice to microwave radiation at 2450 MHz (the same frequency used in microwave ovens) for one hour and found significant effects on blood-forming stem cells in the spleen and bone marrow. The study showed a wave-like pattern where stem cell activity first decreased, then increased beyond normal levels, and the animals became less sensitive to additional radiation exposure.
Paul S. Ruggera, Robert L. Elder · 1971
This 1971 technical report by Paul Ruggera and Robert Elder examined how electromagnetic radiation interferes with cardiac pacemakers. The research investigated electromagnetic interference (EMI) effects on these life-sustaining medical devices. This early work helped establish understanding of how EMF exposure can disrupt critical medical equipment.