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
King, Justesen, Clarke · 1971
Researchers trained rats to detect microwave radiation using behavioral conditioning techniques. The rats could reliably sense 12.25-centimeter microwaves at power levels as low as 0.5 milliwatts per gram. This demonstrates that mammals can physically detect microwave energy at relatively low exposure levels.
Ira T. Kaplan et al. · 1971
Researchers exposed rabbits to 2.4 GHz microwave radiation at power levels similar to early wireless devices to test Soviet claims that low-level microwaves affect heart rate. They found no heart rate changes at 10 mW/cm², but did observe effects at much higher power densities (100 mW/cm²). This suggests earlier Soviet findings may have been statistical variations rather than real biological effects.
S. Baranski · 1971
Researchers exposed 200 guinea pigs and rabbits to microwave radiation at 3.5 mW/cm² for 3 hours daily over 3 months. The study found significant blood system changes including increased lymphocytes, abnormal bone marrow cells, and damaged lymph nodes and spleen tissue. The researchers concluded these effects couldn't be explained by heating alone.
Harold L. Bassett et al. · 1971
This 1971 technical paper describes three different laboratory systems for exposing biological samples to microwave radiation in controlled research settings. The study focused on engineering solutions for creating uniform microwave fields rather than testing health effects. These exposure systems became foundational tools for subsequent biological EMF research.
McRee D, Walsh P · 1971
Researchers in 1971 built and calibrated a specialized microwave exposure system designed to study biological effects of 2450 MHz radiation. The system could deliver precise power densities from 0.01 to 200 mW/cm² with uniform field distribution across a 15 cm diameter area. This technical achievement provided researchers with a standardized tool for conducting controlled microwave bioeffects studies.
C. K. O'BRIEN, A. W. RICHARDSON, H. M. KAPLAN · 1971
Researchers exposed rats to intense 2450 MHz microwave radiation (the same frequency used in microwave ovens) at lethal doses for 6-8 minutes. The study found significant liver damage including cell death, structural changes to cell nuclei, and loss of cellular energy stores, with cells closest to major blood vessels showing the most severe damage.
Jerzy Tajchert, Eustachy Chmurko · 1971
Polish researchers in 1971 investigated how microwave radiation affects the eye in animal studies. This early research examined the biological effects of microwave exposure, focusing on power density measurements and the importance of radiation modulation. The study contributed to our understanding of how electromagnetic fields in the microwave range can impact sensitive tissues like the eye.
M. A. Henderson · 1971
This 1971 research by Henderson examined the use of controlled hyperthermia (targeted heating) as a cancer treatment method. The study focused on how precisely controlled heat application could be used therapeutically against malignant tumors. This represents early foundational work in hyperthermia cancer therapy, which later became relevant to EMF health research as electromagnetic fields are commonly used to generate therapeutic heating.
George M. Samaras, Lawrence R. Muroff, George E. Anderson · 1971
Researchers exposed rats to high-intensity microwave radiation while controlling their environment with liquid-nitrogen-cooled air. They found that keeping the rats cool during microwave exposure actually prolonged their survival compared to rats exposed without temperature control. This suggests that heat, not just the microwaves themselves, plays a critical role in microwave-related health effects.
J.A. Tanner, C. Romero-Sierra · 1971
This 1971 technical report examined non-ionizing electromagnetic radiation as a form of atmospheric pollution, studying microwave effects on birds including collision patterns, neurological changes, and egg production impacts. The research investigated how microwave radiation might affect wildlife behavior and physiology, including brain wave patterns and nerve tissue damage.
Brady, M.M. · 1971
This 1971 research examined whether microwave radiation poses health hazards to humans, representing early scientific inquiry into electromagnetic field safety concerns. The study explored radiation dosimetry methods and potential biological effects from microwave frequency exposures. This work helped establish the foundation for modern EMF health research and safety standards.
C. L. Schepens, M.D. · 1971
This 1971 study examined the evolution of retinal detachment treatments, comparing traditional methods like diathermy with newer techniques including cryotherapy, photocoagulation, and scleral buckling. The research evaluated whether advances in electrosurgical and thermal treatments represented genuine progress or created confusion in medical practice.
G. Bertharion, B. Servantie, R. Joly · 1971
French researchers in 1971 studied how radar radiation affects brain electrical activity in white rats using electrocorticography (brain wave monitoring). This early research examined the central nervous system's response to high-frequency electromagnetic radiation from radar systems. The study represents pioneering work in understanding how EMF exposure influences brain function.
Arthur W. Guy · 1971
This 1971 study developed a groundbreaking method using thermal imaging to measure electromagnetic fields inside biological tissues exposed to microwave sources. Researchers created tissue-equivalent phantom models and used thermographic cameras to map heating patterns, allowing them to calculate field strengths throughout the tissue. The technique proved accurate when compared to theoretical predictions and helped improve microwave medical applicators.
Michael J. Schmidt, Dennis E. Sokoloff, G. Alan Robison · 1971
This 1971 study estimated cyclic adenosine monophosphate (cAMP) in discrete regions of rat brains after the rats were killed by microwave irradiation, tested as a way to fix brain tissue. Amounts were highest in the cerebellum and brainstem, intermediate in the hypothalamus and midbrain, and lowest in the hippocampus and cortex. Whole-brain concentrations in microwaved rats were comparable to those in frozen samples.
Miles F. Buchman · 1971
This 1971 study by Buchman examined how electromagnetic fields interact with bone tissue, focusing on the natural electrical properties that help bones heal fractures. The research explored bone's piezoelectric characteristics, which generate electrical signals when mechanically stressed, and how external electromagnetic fields might influence these natural healing processes.
Brihaye M, Oosterhuis JA · 1971
This 1971 study investigated experimental transscleral cryocoagulation of the retina in animal models. The research examined using extreme cold applied through the sclera (white part of the eye) to create controlled tissue damage in retinal tissue. This technique was being developed as a potential treatment method in ophthalmology.
James A. Jolly, Robert L. Tate · 1971
Researchers in 1971 exposed Douglas-fir tree seeds to microwave energy to test whether it would improve germination rates. They found that the optimal microwave treatment increased overall seedling yield by more than 25% and dramatically accelerated early germination by over 800%. This demonstrates that microwave radiation can significantly alter biological processes in living organisms.
M. F. Tansy et al. · 1971
This 1971 study exposed rats to high-frequency radio waves and found significant changes in their digestive systems. The exposed animals showed weakened muscle contractions in their colons and faster stomach emptying compared to unexposed controls. This research demonstrates that RF radiation can disrupt normal gastrointestinal function in mammals.
Allan H. Frey · 1971
This 1971 review by Allan Frey examined early research showing that low-power radiofrequency energy can affect biological functions in living organisms. The paper analyzed sparse Western research data and explored potential mechanisms behind these biological effects. Frey concluded that modulated RF energy poses possible hazards to personnel even at low power levels.
P. S. Rai, H. J. Ball, S. O. Nelson, L. E. Stetson · 1971
Researchers exposed mealworm beetle pupae or larvae over 60 days old to 39 MHz radiofrequency fields and found it caused abnormal development of head and chest appendages in adult beetles. Higher RF energy levels caused more larval deaths and more deformed adults. The damage appeared to be caused by heat injury to developing tissue structures.
Ye. A. Lobanova, A.V. Goncharova · 1971
This 1971 Russian study examined how ultra-short and short wave electromagnetic radiation affected conditioned reflexes (learned behaviors) in white rats. The research investigated whether EMF exposure could disrupt the nervous system's ability to form and maintain learned responses. While specific findings aren't available, this early work explored EMF's potential impact on brain function and behavior.
H. Dean McKay · 1971
This 1971 research by McKay focused on developing methods to measure and monitor electromagnetic pollution across the radio frequency spectrum. The study addressed the growing need for systematic EMF measurement techniques as electronic devices became more prevalent. This represents early recognition that electromagnetic emissions from technology required scientific monitoring.
J. Damelin · 1971
This 1971 government report examined radiation hazards from VHF and UHF frequencies, establishing safety guidelines for electromagnetic radiation exposure. The study focused on power density measurements and protection protocols for these radio frequency bands. This represents early official recognition of potential health risks from RF radiation exposure.
P. JITARIU, C. SCHNELLER-PAVELESCU, ELENA CHERA · 1971
Researchers exposed 20 rabbits to a rectangular pulsating electromagnetic field for 10 consecutive days and observed changes in their white blood cell counts and composition. Leukocyte counts rose 12.158% after 5 exposures and 21.896% after 10, while neutrophils decreased and monocytes, basophils and lymphocytes increased. The authors describe a new distribution of the leucocytes, yet within the homeostasis limits.