EMF Research Studies

Azione battericida di alcune radiazioni a breve lunghezza d'onda

O. Cimitan · 1951

L'azione delle microonde sui batteri

Maurizio Terni, Pietro Lombardini · 1951

The dielectric behaviour of some types of human tissues at microwave frequencies

H. F. Cook · 1951

Influence des ondes à haute fréquence sur l'hypercholestérinémie

Albert DE LOZ · 1951

Estimation of Protein Hydration by Dielectric Measurements at Microwave Frequencies

G. H. Haggis, T. J. Buchanan, J. B. Hasted · 1951

THE EFFECT OF SHORT WAVE DIATHERMY UPON DIGITAL CIRCULATION AS DETERMINED BY MICROPLETHYSMOGRAPHY

Grynbaum BB, Megibow RS, Bierman W · 1950

LA RICERCA SCIENTIFICA

Giorgio Piccardi · 1950

LESIONS OF THE EYE FROM RADIANT ENERGY

David G. Cogan, M.D. · 1950

Effects of Intense Microwave Radiation on Living Organisms

J. W. Clark · 1950

CORNEA AND SCLERA: Review of the Literature

MILTON L. BERLINER, M.D. · 1950

Some Effects of Very High Radio Frequency Irradiations on the Germination and Metabolism of Certain Small Seeds

Herbert Jonas · 1950

EFFECT OF DIATHERMY CURRENTS ON METAL IMPLANTS IN THE BODY WALL

George Smith · 1950

Eleven Wistar rats weighing 150 g received implants of tantalum wire, stainless steel wire, or stainless steel wire gauze. Long-wave coagulation diathermy for three minutes produced no burning in rats with any of the three implant types.

The effects of microwaves - A preliminary investigation

Boyle AC, Cook HF, Buchanan TJ · 1950

The Relationship Between Deep Tissue Temperature and Blood Flow During Electromagnetic Irradiation

Alfred W. Richardson et al. · 1950

THE EFFECT OF MICROWAVES ON BONE AND BONE MARROW AND ON ADJACENT TISSUES

Joseph P. Engel et al. · 1950

Researchers exposed anesthetized and trained dogs to microwave diathermy at 2,450 megacycles per second and measured temperature changes in tibial cortex, marrow, muscle, and subcutaneous tissue. For subcutaneously located bone, 30 minutes at 65 watts raised tibial cortex temperature by 5.0 degrees (C.) and marrow by 3.4 degrees (C.). For submuscularly located bone, the same exposure raised cortex by 3.8 degrees (C.) and marrow by 3.0 degrees (C.). A rectangular director allowed higher temperatures in subcutaneously located bone without excessively heating adjacent soft tissue. An impedance-matching transformer increased tissue temperature rises by approximately 300 per cent.

The Survival of Bacteria in High-Frequency Electric Fields

S. E. Jacobs, Margaret J. Thornley, P. Maurice · 1950

Researchers exposed various bacteria, principally Bacterium coli and Staphylococcus aureus, to high-frequency electric fields at 1-65 Mc/s with external electrodes while preventing lethal temperature rise. They used a low-powered variable-frequency generator (1-710 Mc/s) and a high-powered 44 Mc/s diathermy unit. Bacterial survival was judged by viable plate counts using duplicate samples. No significant mortality occurred in any experiment, even at high voltage gradients. The results consistently failed to confirm Fleming's 1944 report of high mortality.

TESTICULAR TEMPERATURE IN MAN

Herbert F. Newman, Seymour F. Wilhelm · 1950

Researchers measured testicular temperatures in 28 volunteers using tissue thermocouples inserted through the scrotal skin. Testicular temperatures were usually lower than rectal temperatures and changed with environmental temperature. Inguinal canals were warmer than the testes in most anesthetized men (average 2.7°F) and warmer than scrotal cavities in all cases (average 3.6°F).

A Comparative Study of the Temperature Changes Produced by Various Thermogenic Agents

Alma J. Murphy, W. D. Paul, H. M. Hines · 1950

Greater temperature increases occurred in superficial tissues in 247 of 266 experiments, while the least increase was at the 3 cm depth in 240 of 266 experiments. The greatest temperature rise in living tissue occurred during the first ten minutes of irradiation, and dead tissue showed greater temperature increases than living tissue for all wavelengths. After irradiation, living tissue temperatures tended to equalize across all measured depths, while only shorter wavelengths left the surface warmer than deeper tissue.

RADIATION DAMAGE TO THE GENETIC MATERIAL

H. J. MULLER · 1950

BEDSIDE ULTRASHORT WAVE TREATMENT

Hubner · 1950

Dielectric Properties of the Human Body for Wave-lengths in the 1-10 cm. Range

T. S. England · 1950

Researchers extended earlier dielectric measurements at 3-18-cm. wavelength to 1-27-cm. and 10-0-cm. wavelengths using surgical tissue specimens. Absorption and phase constants were recorded for each tissue in a waveguide, with measurement accuracies of +10 per cent in absorption and +5 per cent in phase at 1-27-cm., and +5 per cent in absorption and +2 per cent in phase at 10-0-cm. Most tissues behaved like water, fat and bone were relatively transparent, and malignant and normal tissues did not differ significantly.

LOCAL EFFECTS OF MICROWAVE RADIATION ON TISSUES IN THE ALBINO RAT

Leonard Essman, Charles S. Wise · 1950

DIELECTRIC PROPERTIES OF TISSUES IMPORTANT IN MICROWAVE DIATHERMY

J. F. HERRICK, D. G. JELATIS · 1950

The study measured dielectric constant and loss of freshly excised tissues including liver, muscle, fat, bone, and bone marrow. The researchers used a microwave dielectrometer they designed and built for the measurements. They also presented dielectric properties of certain body fluids and designed a transformer to improve microwave power transfer into muscle.

A METHOD FOR DECREASING REFLECTION OF MICROWAVES BY TISSUE

Jerome W. Gersten, Khalil G. Wakim, Frank H. Krusen · 1950

ELECTROCOAGULATION OF THE SCLERA: REDUCTION IN OCULAR VOLUME AND PATHOLOGIC CHANGES PRODUCED

Harold G. Scheie, Bourne Jerome · 1949