EMF Research Studies

THE EFFECTS OF MICROWAVE DIATHERMY ON THE EYE: AN EXPERIMENTAL STUDY

Louis Daily Jr. et al. · 1959

Germ-Gas Electronic Detectors

John F. Mason · 1959

Some Electrical and Radiation Hazards in the Laboratory

R. Stuart Mackay · 1959

The paper reviews electrical and radiation hazards in laboratories, including high-voltage shocks and X-ray generation from high-voltage equipment. Low-voltage hazards include severe burns from rings across battery terminals and high-voltage spikes when interrupting coil current. Radiofrequency radiation acts mainly through thermal effects, the eye is especially sensitive to cataracts, and a tolerance of 0.01 W/cm² is suggested.

Relation of Interrupted Pulsed Microwaves to Biological Hazards

William B. Deichmann, M. Keplinger, E. Bernal · 1959

Electrical Properties of Mitochondrial Membranes

Helmut Pauly, Lester Packer, H. P. Schwan · 1959

Researchers measured the electrical capacity of rat liver mitochondrial membranes by analyzing the frequency dependence of admittance in suspensions of swollen mitochondria. The membrane capacity was found to be 0.5 to 0.6 /F/cm2 and depended on potassium chloride ion concentration. The swollen mitochondria had internal ion concentrations proportional to the external medium, suggesting they could adjust their internal ion concentration. Internal mitochondrial conductance was approximately half that of the external medium, even with a 10-fold KCl concentration difference. The data suggested anisotropic electrical behavior explained by internal membranes.

Dielectric Absorption of Microwaves in Human Tissues

J. R. Mallard, J. G. Lawn · 1959

RESEARCH ON THE THERMAL CONDUCTIVITY AND DIATHERMANCY OF ALBINO RAT SKIN

Guy P. doLhery, Willard L. Derksen, Thomas I. Monahan · 1959

A Transistorized Bio-Tachometer

Harve M. Hanish · 1959

The bio-tachometer automatically measures time relationships of quasi-periodic biological signals by converting intervals into amplitude variations. The device uses a two-transistor ramp generator in a Miller integrator configuration triggered by biological signals. Testing on a resting gopher snake showed cardiac rate changes of approximately 20 beats per minute over the respiratory cycle. Testing on a stimulated rattlesnake showed consistent heart rate increases of 15 to 30 beats per minute.

Temperature Control in a Bio-Satellite

K. L. Cappel · 1959

Penetration of Corneal Opacities by Infrared Electronics

Joel Friedman · 1959

The Temperature Response of Skin Exposed to Penetrating and Non-Penetrating Radiation

Thomas P. Davis · 1959

The Predictability of Thermally-Induced Epidermal Injury

F. C. Henriques · 1959

Bionegative Actions of Microwaves

Victor T. Tomberg · 1959

Characterization of the Thermal Response Among Animals Exposed to Microwaves or Increased Environmental Temperature

Sol M. Michaelson, Roderick A. E. Thomson, Joe W. Howland · 1959

Experimental radiation cataracts induced by microwave radiation

Russell L. Carpenter et al. · 1959

Researchers exposed 56 male New Zealand white rabbits to continuous-wave radiation at 2450 MC with power densities from 0.12 to 0.40 WATTS/CM. Higher power densities required shorter exposure times to induce cataracts, with a six-minute exposure at 0.28 WATTS/CM. being the minimum cataractogenic single exposure. Repeated subthreshold exposures also caused cataracts, with two four-minute exposures two weeks apart proving cataractogenic.

MICROWAVE RADIATION HAZARDS TO PERSONNEL FROM BUORD RADAR

H. S. Overman · 1959

STUDIES ON THE BIOLOGICAL EFFECTS OF MICROWAVE IRRADIATION OF THE DOG AND RABBIT

J. W. Howland, S. Michaelson · 1959

A New Physical Method of creating Chromosomal Aberrations

John H. Heller, A. A. Teixeira-Pinto · 1959

Researchers used a pulsed radio-frequency source at 27 Mc./s. with pulses of 5 X 10-5 sec. and 80 to 180 pulses per second. Garlic root tips were exposed for 5 minutes between insulated electrodes with no temperature rise in the water. Observed chromosomal aberrations included linear shortening of chromosomes, pseudochiasmiata, amitotic division, bridging, and irregularities in the chromosomal envelope.

EVALUATION OF OPTICAL METHODS IN BIOMEDICAL RESEARCH

Raymond Jonnard · 1959

The author presents optical systems as diffraction-limited, noisy, linear-communication channels with spatial-frequency response limited by a generalized interaction principle. The theory uses frequency analysis to evaluate optical system performance, predicting that filtration methods improve performance in relative frequency applications. A sampling theorem similar to communication theory is applied, where N = 2RT with time replacing length. Total optical noise reduces the effective aperture, and the analysis leads to a relation similar to Shannon's theorem for maximum information transmission rate in a noisy channel. The paper introduces a generalized principle of optical indeterminacy and discusses how observation interacts with biological objects, limiting complete predictability.

Evolution of Concepts Concerning the Application of High-Frequency Currents Upon Living Organisms

Robert Wallis · 1959

Alternating Current Spectroscopy of Biological Substances

H. P. Schwan · 1959

THE NEURAL EFFECTS OF MICROWAVE IRRADIATION

Robert T. Nisset et al. · 1959

THE STRUCTURE OF WATER AND THE INFLUENCE OF ELECTROMAGNETIC FIELDS OF LOW FREQUENCY

G. Piccardi · 1959

Lighting Regimen and Experimental Method: Light-Synchronized Periodicity Analysis

Franz Halberg · 1959

ANNUAL PROGRESS REPORT - INVESTIGATIONS OF THE BIOLOGICAL EFFECTS OF MICROWAVE RADIATION

Nieset · 1958