Investigation Systems to Study the Biological Effects of Weak Physiological Electric Fields

2016 ◽  
pp. 31-52
Keyword(s):  
Electric Fields ◽  
Biological Effects

Biological effects of narrow band pulsed electric fields

2007 ◽  
Vol 14 (3) ◽  
pp. 663-668 ◽  
Author(s):  
Sunao Katsuki ◽  
Naoyuki Nomura ◽  
Hideto Koga ◽  
Hidenori Akiyama ◽  
Ichiro Uchida ◽  
...  
Keyword(s):  
Electric Fields ◽  
Narrow Band ◽  
Biological Effects ◽  
Pulsed Electric Fields

Possible Biological Effects of 50-Hz Electric Fields: A Progress Report

1985 ◽  
Vol 4 (1) ◽  
pp. 177-194 ◽  
Author(s):  
R. Conti ◽  
P. Nicolini ◽  
P. Cerretelll ◽  
V. Margonato ◽  
A. Veicsteinas
Keyword(s):  
Electric Fields ◽  
Biological Effects ◽  
Progress Report

Long-term biological effects of air ions and D.C. electric fields on Namru mice: Second year report

1985 ◽  
Vol 29 (3) ◽  
pp. 269-283 ◽  
Author(s):  
E. W. Kellogg ◽  
M. G. Yost ◽  
E. J. Reed ◽  
S. H. Madin
Keyword(s):  
Electric Fields ◽  
Biological Effects ◽  
Air Ions ◽  
Second Year

scholarly journals High Power Electromagnetic Waves Exposure of Healthy and Tumor Bearing Mice: Assessment of Effects on Mice Growth, Behavior, Tumor Growth, and Vessel Permeabilization

2021 ◽  
Vol 22 (16) ◽  
pp. 8516
Author(s):  
Jelena Kolosnjaj-Tabi ◽  
Muriel Golzio ◽  
Elisabeth Bellard ◽  
Alexandre Catrain ◽  
Thomas Chretiennot ◽  
...  
Keyword(s):  
Pilot Study ◽  
Electric Fields ◽  
High Power ◽  
Electromagnetic Waves ◽  
Field Experiments ◽  
Narrow Band ◽  
Biological Effects ◽  
Wide Band ◽  
Tumor Bearing ◽  
Peak Value

High power radiofrequencies may transiently or permanently disrupt the functioning of electronic devices, but their effect on living systems remains unknown. With the aim to evaluate the safety and biological effects of narrow-band and wide-band high-power electromagnetic (HPEM) waves, we studied their effects upon exposure of healthy and tumor-bearing mice. In field experiments, the exposure to 1.5 GHz narrow-band electromagnetic fields with the incident amplitude peak value level in the range of 40 kV/m and 150 MHz wide-band electric fields with the amplitude peak value in the range of 200 kV/m, did not alter healthy and tumor-bearing animals’ growth, nor it had any impact on cutaneous murine tumors’ growth. While we did not observe any noticeable behavioral changes in mice during the exposure to narrow-band signals when wide-band HPEM signals were applied, mice could behave in a similar way as they respond to loud noise signals: namely, if a mouse was exploring the cage prior to signal application, it returned to companion mates when wide-band HPEM signals were applied. Moreover, the effect of wide-band signals was assessed on normal blood vessels permeability in real-time in dorsal-chamber-bearing mice exposed in a pilot study using wide-band signal applicators. Our pilot study conducted within the applicator and performed at the laboratory scale suggests that the exposure to wide-band signals with the amplitude of 47.5 kV/m does not result in increased vessel permeability.

scholarly journals Biological effects of exposure to static electric fields in humans and vertebrates: a systematic review

2017 ◽  
Vol 16 (1) ◽  
Author(s):  
Anne-Kathrin Petri ◽  
Kristina Schmiedchen ◽  
Dominik Stunder ◽  
Dagmar Dechent ◽  
Thomas Kraus ◽  
...  
Keyword(s):  
Systematic Review ◽  
Electric Fields ◽  
Biological Effects ◽  
Static Electric Fields

APPLICABILITY OF HOMOGENEOUS HUMAN TRUNK PHANTOM IN ESTIMATING THE RADIATION CHARACTERISTICS OF BODY-WORN DEVICES

2008 ◽  
Vol 05 (01) ◽  
pp. 65-82 ◽  
Author(s):  
LISHENG XU ◽  
MAX Q.-H. MENG ◽  
HONGLIANG REN
Keyword(s):  
Electric Fields ◽  
Human Body ◽  
Biological Effects ◽  
Fdtd Method ◽  
Communication Link ◽  
Human Body Model ◽  
Radiation Characteristics ◽  
Worst Case ◽  
Half Wavelength ◽  
Link Performance

In this paper, the radiation characteristics with respect to the suitability of using homogeneous phantom for testing the compliance of radiation frequency devices are assessed. The Finite-Difference Time-Domain (FDTD) method is applied to analyze the variations of a 900 MHz half-wavelength dipole antenna's biological effects and link performance depending on distance between antenna and human body model. The distance between the surface of the model and the outside exposure source is changed from 25 mm to 1 mm within the range of λ/2π. The distributions of the specific absorption rates (SARs) and the electric fields for various vertical slices of a simplified homogeneous phantom and three anatomical human body trunk models are calculated, respectively. The legs and head have little influence on the radiation characteristics of body-worn, ingestible or implantable wireless devices. The results demonstrate that a homogenous representation of human body is suited for assessing the averaged SARs in human body and confirm that the local energy absorption details and communication link performance need to be analyzed by using the anatomical models or by combining with the worst-case consideration.

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