EMF Research Studies

EPIDEMIOLOGIC APPROACH TO THE STUDY OF MICROWAVE EFFECTS

Charlotte Silverman · 1979

CELL GROWTH IN A LOW-INTENSITY, 60 Hz MAGNETIC FIELD

S. S. Kronenberg, T. S. Tenforde · 1979

MICROWAVE INDUCED HYPERTHERMIA – RADIOTHERAPY IN THE TREATMENT OF SUPERFICIAL HUMAN MALIGNANCIES

Harvey et al. · 1979

Researchers treated ten patients with superficial metastatic tumors using microwave hyperthermia at 2450 MHz. Hyperthermia was delivered at 43°C for 45 minutes using a dielectrically loaded tapered or conformal wave guide applicator. Heat alone produced one complete response, one partial response, and one minor response among the 10 patients. Five lesions that did not respond to heat alone were then treated with hyperthermia plus radiation therapy, resulting in three complete responses and two partial responses.

EFFECTS OF MICROWAVE-INDUCED HYPERTHERMIA ON THE RAT BLOOD-BRAIN BARRIER

Carl H. Sutton, Frederick B. Carroll · 1979

Researchers used Sprague-Dawley male rats to study the tolerance of the blood-brain barrier to microwave irradiation at 2450 MHz. Horseradish peroxidase was administered 30 minutes before sacrifice to assess barrier disruption, and brains were analyzed after perfusion. In normothermic rats, the barrier was disrupted after 10 minutes at 45°C, 15 minutes at 42°C, and 60 minutes at 40°C; in hypothermic rats, disruption occurred after longer durations at the same temperatures.

BIOEFFECTS OF RF/MICROWAVE RADIATION

Bob Curtis · 1979

MICROWAVE-INDUCED HYPERTHERMIA: AN EXPERIMENTAL ADJUNCT TO BRAIN TUMOR THERAPY

G.M. Samaras et al. · 1979

DOSIMETRIE THERMIQUE ET CHAUFFAGE PAR MICROONDES – CONCEPTION DES SONDES-APPLICATEURS

D.D. N'GUYEN et al. · 1979

BIOLOGICAL EFFECTS OF RADIO FREQUENCY WAVES

James C. Lin, John C. Nelson, Merlin E. Ekstrom · 1979

Researchers exposed C3H mice to 148 MHz RF energy at 0.5 mW/cm2 for one hour a day, five days a week, for 10 weeks starting shortly after birth. They monitored body weight daily for ten weeks then weekly, drew blood at multiple ages for analysis, and performed necropsy with histopathology on randomly selected animals. No effects were found on blood cells, body mass, or lesion incidence, onset, prevalence, extent, or type compared to sham controls.

MICROWAVE BIOEFFECTS AND RADIATION SAFETY

M. Wayne Greene et al. · 1979

Microwave Bioeffects Research: Historical Perspectives On Productive Approaches

H.P. Schwan · 1979

Dielectric perturbation of hydrogen-bonded systems by high electric fields

L. Hellemans, M. De Maeyer, R. Ooms · 1979

Holographic Assessment of a Hypothesized Microwave Hearing Mechanism

Allan H. Frey, Elaine Coren · 1979

Introduction, Brief Background, and Some Uses of Radiofrequency (RF) Sealers, Heaters, and Gluers

Zory R. Glaser · 1979

RF sealers, heaters, and gluers are also known as heat sealers, fusers, nolders, fasteners, embossers, high frequency sealers or dryers, electronic or electromagnetic sealers or welders, and dielectric heaters. Most devices operate between 3 and 100 MHz, with sealers commonly using ISM bands at 13, 27, and 40 MHz. An estimated 20,000 sealers are in use operated by approximately 30 to 40,000 workers.

Biopsychological Studies of Microwave Irradiation

Charles L. Sheridan et al. · 1979

The longevity study of mice exposed in utero to near-lethal 2450-MHz microwave radiation is in its third year with mortality rising in both groups. Spontaneous tumors appeared in two control mice (n=81) but not in radiated mice (n=83), a difference too narrow to exclude chance. Acute studies in anesthetized rats, guinea pigs, and rabbits showed that brief near-lethal 2450-MHz exposures produced whole-body temperature rises of 4.5 to 12 K and altered thermal distributions, with the brain stem appearing thermally privileged. Twelve pilot studies were completed to optimize microwave hyperthermia as adjuvant treatment for experimentally induced glioblastoma in rats.

Microwave Radiation and Chlordiazepoxide: Synergistic Effects on Fixed-Interval Behavior

John R. Thomas, Linda S. Burch · 1979

Four male Long-Evans rats were trained on a fixed-interval schedule requiring a lever press for food pellets. The rats were exposed to 2.45 GHz pulsed microwave radiation at an average power density of 1 mW/cm² for 30 minutes before behavioral sessions. Chlordiazepoxide alone increased response rates up to a maximum, but combined with microwave radiation the drug's effects were potentiated. Behavior returned to baseline after each session.

Abstracts National Institute of Environmental Health Sciences Second Biennial Science Seminar

M. J. Ortner et al. · 1979

Researchers exposed isolated rat peritoneal mast cells to 2450 MHz microwave radiation at 8.5 and 42.5 mW/ml for up to 3 hours while maintaining the cells at 37°C. The exposure caused no change in cell morphology or viability as measured by Trypan Blue exclusion. Prior or simultaneous microwave exposure did not alter the cells' secretory response to compound 48/80. Heating cells to 45°C for 10 minutes made them refractory to 48/80, but microwave-exposed cells at 37°C responded normally, indicating no heat-induced membrane damage.

THRESHOLDS FOR PHYSIOLOGICAL EFFECTS DUE TO RF AND MAGNETIC FIELDS USED IN NMR IMAGING

Thomas F. Budinger · 1979

BEHAVIORAL AND PSYCHOLOGICAL EFFECTS OF MICROWAVE RADIATION

Don R. Justesen · 1979

IRLG NOTICE – ESTABLISHMENT OF RADIOFREQUENCY-MICROWAVE COMMITTEE

Mays L. Swicord, Chairman · 1979

The Food and Drug Administration, Environmental Protection Agency, Occupational Safety and Health Administration, and Consumer Product Safety Commission announced the formation of the committee. The committee held its first meeting on October 12, 1977, and two later monthly meetings. The National Institute for Occupational Safety and Health and the Federal Emergency Management Agency participated and were invited to join the committee. The committee drafted a radiation protection philosophy statement with several recommendations.

Radiofrequency (RF) Sealers and Heaters: Potential Health Hazards and Control

Unknown authors · 1979

DESIGN SPECIFICATIONS FOR A LARGE-VOLUME, DC TO 60 Hz, 0.1 TESLA (PEAK) MAGNET FOR PRIMATE EXPERIMENTATION

T. S. Tenforde, C. G. Dols, A. A. Lake, R. D. Hay · 1979

IRLG Radio Frequency/Microwave Committee: Interim Statement on RF Sealers

William A. Herman, Zorach R. Glaser · 1979

Simultaneous Microwave Local Heating and Microwave Thermography, Possible Clinical Applications

D.D. N'Guyen, A. Mamouni, Y. Leroy, E. Constant · 1979

A basic experiment showed the possibility of combining microwave local heating of subcutaneous living tissue with microwave radiometry using the same system. The system used a 4.6 GHz generator for heating and a 9.6 GHz radiometer with 60 MHz bandwidth for temperature measurement. In beef, 5 W of heating power produced an 8°C temperature increase in 10 minutes, and radiometric measurements agreed fairly with thermocouple readings. The authors suggested the method could help detect diseased tissue such as breast carcinoma, which becomes warmer than healthy tissue after microwave exposure.

Physical basis and technology of microwave radiometry

A. Mamouni, D.D. N'Guyen, M. Robillard, M. Chivé, Y. Leroy · 1979

The authors describe microwave radiometry systems that detect thermal noise to measure subcutaneous temperature without invasion. Two receivers were built with nearly 1 GHz bandwidth, one at 9 GHz and the other tunable from 2.5 to 3.5 GHz, and could resolve temperature changes of 0.2° or 0.15° within several seconds. Muscle measurements during exercise showed temperature increases higher than those from infrared thermography, confirming that the method reveals subcutaneous temperature.

RADIOTHERMOMETRIE MICROONDE A 9 GHz : Applications aux Cancers du sein et à des localisations tumorales diverses. MONACO - 11-15 Juin 1979 Résultats Préliminaires

A. MAMOUNI, Y. LEROY, M. SANSEL, M. GAUTHERIE · 1979