Grynbaum BB, Megibow RS, Bierman W · 1950
Researchers in 1950 used a sensitive microplethysmograph device to measure blood circulation in fingers of 10 healthy people during short wave diathermy (radiofrequency heating) treatments. This early study aimed to settle debates about whether RF heating affects blood flow in extremities. The research represents one of the first attempts to precisely measure how radiofrequency energy impacts human circulation.
Gersten JW, Wakim KG, Krusen FH · 1950
This 1950 study examined how to make microwave heating of human tissue more efficient by reducing the high reflection that occurs at skin surfaces. Researchers tested a dielectric material called mycalex as an impedance matching device to improve energy transfer from air to tissue. The work aimed to enable more targeted heating of specific tissue areas for medical applications.
David G. Cogan, M.D. · 1950
This 1950 research by Dr. Cogan examined how different types of radiant energy cause damage to human eyes. The study investigated lesions caused by ultraviolet, infrared, and visible light radiation. This early work helped establish our understanding of how electromagnetic radiation can harm eye tissue.
Boyle AC, Cook HF, Buchanan TJ · 1950
This 1950 study by A.C. Boyle represents one of the earliest scientific investigations into microwave radiation's biological effects on humans. The research examined heating effects and potential tissue damage from microwave exposure, marking a foundational moment in EMF health research. This pioneering work helped establish the scientific framework for understanding how microwave energy interacts with human biology.
England TS · 1950
This 1950 research by England examined how microwave radiation interacts with human body tissues by measuring dielectric properties. The study investigated how the human body absorbs and conducts electromagnetic energy in the microwave frequency range. This foundational work helped establish early understanding of how microwave radiation penetrates and affects human tissue.
Herbert F. Newman, Seymour F. Wilhelm · 1950
This 1950 research by Newman examined testicular temperature regulation in men using thermocouples to measure temperatures within the scrotal cavity. The study investigated how environmental conditions affect the natural cooling mechanisms that keep testicles at optimal temperatures for sperm production. This foundational work established baseline data for understanding male reproductive physiology.
Hubner · 1950
This 1950 study examined bedside ultrashort wave diathermy treatment, which used radiofrequency electromagnetic fields for therapeutic heating of body tissues. The research investigated medical applications of RF energy that operated at frequencies similar to those used in modern wireless devices. This represents early documentation of intentional human exposure to RF electromagnetic fields for therapeutic purposes.
T. S. England · 1950
This 1950 study measured how microwave radiation at three different wavelengths (1.27 cm, 3.18 cm, and 10 cm) interacts with human body tissues taken from surgical operations. Researchers analyzed the dielectric properties of various tissues to understand how microwaves penetrate and affect different parts of the human body. This foundational research helped establish how electromagnetic fields interact with biological tissues.
J. F. HERRICK, D. G. JELATIS · 1950
This 1950 study examined how microwave energy penetrates and heats different human tissues for medical diathermy treatments. Researchers measured the dielectric properties of various tissues to understand how they absorb microwave radiation. The findings helped establish early safety parameters for therapeutic microwave heating in medical settings.
Jerome W. Gersten, Khalil G. Wakim, Frank H. Krusen · 1950
This 1950 study examined how microwaves heat human tissue and found that skin reflects most of the energy, making heating inefficient. Researchers proposed using impedance matching devices on the skin to improve energy transfer and enable targeted heating of specific tissue areas.
Ira Gore, Norman H. Isaacson · 1949
This 1949 autopsy study examined 17 patients who died from hyperpyrexia (extremely high fever) during fever therapy, a medical treatment once used for conditions like syphilis. Researchers documented the pathological changes that occurred when body temperature reached dangerous levels, providing insights into how extreme heat affects human tissues and organs.
Gore I, Isaacson NH · 1949
This 1949 autopsy study examined 17 patients who died from hyperpyrexia (extremely high fever) during fever therapy treatments. Researchers analyzed tissue damage and organ changes to understand how extreme heat affects the human body. While not directly EMF-related, this research provides important baseline data on thermal effects that helps inform modern RF exposure safety standards.
Gersten JW, Wakim KG, Herrick JF, Krusen FH · 1949
This 1949 study examined how microwave radiation affects blood circulation and tissue temperature in humans for therapeutic applications. The research was conducted during the early development of magnetron technology, which could generate high-power microwaves in the 300 to 300,000 megacycle frequency range. The study represents one of the earliest investigations into how microwave energy interacts with human tissue.
Herman J. Flax, Ruth N. Miller, Steven M. Horvath · 1949
This 1949 study examined how shortwave diathermy (a medical heating device using radio frequencies) affected blood circulation in human legs. Researchers found conflicting results - some studies showed decreased blood flow despite tissue heating of 4 degrees Celsius, while others reported 69% increases in circulation. The controversy highlighted early concerns about RF energy's unpredictable effects on blood vessels.
Gersten JW, Wakim KG, Herrick JF, Krusen FH · 1949
This 1949 study examined how microwave radiation affects blood circulation and tissue temperature in humans. The research was conducted during the early development of microwave technology, when scientists were exploring therapeutic applications using magnetron oscillators that could generate focused microwave energy.
England TS, Sharples NA · 1949
This 1949 study investigated how microwave radiation interacts with human body tissues by measuring their dielectric properties (how materials respond to electromagnetic fields). This was pioneering research that helped establish the scientific foundation for understanding how microwaves penetrate and affect biological tissues. The work provided early insights into how electromagnetic fields behave in the human body.
Gersten JW, Wakim KG, Herrick JF, Krusen FH · 1949
This 1949 study examined how microwave radiation affects blood circulation and tissue temperature in humans, marking early research into microwave therapeutic applications. The researchers explored microwaves in the 300 to 300,000 megacycle frequency range using newly developed magnetron technology originally created for military radar systems. This represents some of the first documented human exposure to controlled microwave radiation for medical purposes.
Horvath SM, Miller RN, Hutt BK · 1948
This 1948 study by Horvath examined how microwave radiation heats human tissues, investigating temperature gradients and thermal effects in the body. The research explored microwave diathermy applications and measured tissue temperature changes during exposure. This represents some of the earliest scientific investigation into how microwave energy interacts with human biology.
Charles S. Wise · 1948
This 1948 study measured blood flow changes in human forearms during radiofrequency diathermy treatment using plethysmographic recordings. The research challenged earlier findings that suggested RF heating decreased blood flow, instead confirming that tissue heating increases circulation as expected from basic physiology.
Bierman W. · 1948
This 1948 medical paper by Dr. Bierman examined the therapeutic use of artificially induced fever to treat infections like gonorrhea and syphilis, during the transition period when antibiotics like penicillin were becoming available. The research documented fever therapy methods and their effectiveness compared to emerging chemical treatments.
E. van Someren, E. C. Rollason · 1948
This 1948 study measured radiation emissions from welding arcs and found they produce the same intensity of radiation at the welder's eye as direct sunlight. Researchers used specialized equipment including vacuum thermopiles and absorption cells made from bull's eye tissue to quantify the radiation exposure. The findings highlighted a significant occupational health concern for welders who face intense electromagnetic radiation during their work.
Rajewsky, V., Schwan, H. · 1948
This 1948 research by Bajevsky measured how human blood responds to ultra-high frequency electromagnetic radiation by studying its dielectric properties and electrical conductivity. The study examined how blood tissue interacts with radiofrequency fields, providing early data on how biological materials behave when exposed to EMF. This foundational work helped establish baseline measurements for understanding how electromagnetic energy interacts with human tissue.
Steven M. Horvath, Ruth V. Miller, Bruce K. Holt · 1948
This 1948 study examined how microwave radiation at 12.3 MHz heats human tissue, using thermocouples inserted into subjects' thighs to measure temperature changes. Researchers tested different power levels (25, 50, and 80 watts) to understand how microwaves could be used for medical heating therapy. The study found that microwaves effectively heated deep tissue, providing early evidence of biological effects from electromagnetic radiation.
OSBORNE, SL, FREDERICK, MS · 1948
This 1948 study investigated how 12-centimeter wavelength microwave radiation heats human and animal tissues, likely for medical diathermy applications. The research examined tissue heating effects from high-frequency electromagnetic fields, providing early scientific documentation of how microwave energy interacts with biological tissues. This work represents foundational research into microwave heating mechanisms that would later inform both medical applications and safety standards.
Steven M. Horvath, Ruth V. Miller, Bruce K. Hutt · 1948
This 1948 study by Horvath examined how microwave radiation heats human tissue, exploring temperature gradients and thermal effects. The research investigated microwave radiation's potential for therapeutic heating applications, particularly in diathermy treatments. This represents some of the earliest scientific documentation of how microwaves interact with human tissue.
