THE HAZARDS OF RADIO TRANSMITTERS AND THEIR CORRECTION
READ H. CARD · 1957
Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 2,339 studies (Human Studies)
READ H. CARD · 1957
Abramson DI, Harris AJ, Beaconsfield P, Schroeder JM · 1957
W. G. Egan · 1957
H. P. Schwan, C. F. Kay · 1957
Charles W. Simon, Logan E. Anderson · 1956
S. I. Brody · 1956
H. R. Meahl · 1956
The author summarized that continuous exposure to a field intensity of 0.001 watt per square centimeter appears to cause no harmful effects to either animals or men. Monitoring instruments can detect fields exceeding 0.001 watt per Square cm. Microwaves may be greatly intensified by reflections from objects that do not reflect light well. The paper calls for monitoring microwave radiation to limit exposure and describes two inexpensive monitoring devices. Materials and techniques to limit field strength are also indicated.
H. P. SCHWAN, K. LI · 1956
C. I. Barron, A. A. Love, A. A. Baraff · 1956
CHARLES I. BARRON, ARTHUR A. LOVE, ALBERT A. BARAFF · 1955
George H. Day · 1955
Herman P. Schwan, Kam Li · 1955
J. B. Millard · 1955
Herman P. Schwan, Kam Li · 1955
Herman P. Schwan, Geo Morris Piersol · 1955
J. B. MILLARD · 1955
L. Sinisi · 1954
Herman P. Schwan, Edwin L. Carstensen, Kam Li · 1954
Herman P. Schwan, Geo. Morris Piersol · 1954
The authors classify biological effects of high-frequency currents and radiation into thermal, specific thermal, and nonthermal categories, and state that nonthermal effects cannot withstand criticism. They report that selective heating of microscopic particles such as bacteria or cells is not possible because the temperature rise is less than 1/1000°C, and selective heating only occurs for particles at least 1 mm in diameter. The review finds that fatty tissue is heated more than muscle at all practical current therapy frequencies up to about 100 Mc. It also calculates that a coupling medium with a dielectric constant of about 65 can reduce reflection losses to about 7 per cent at 1000 Mc.
Sidney I. Brody · 1953
F. B. Benjamin · 1953
James D. Hardy, Irving Jacobs, Margaret D. Meixner · 1953
Herman P. Schwan, Kam Li · 1953
They also measured temperature dependence for fatty tissue, kidney, heart muscle, and liver. The analysis attributed the frequency dependence to cellular structure, water polarity, and protein content.
Herman P. Schwan, Edwin L. Carstensen, Kam Li · 1953
EMILY E. MUELLER, ROBERT LOEFFEL, SEDGWICK MEAD · 1953