Electric and Magnetic Fields Biologic and Clinical Effects of Low-Frequency Magnetic and Electric Fields J. G. Llaurado A. Sances, Jr. J. H. Battocletti

BioScience ◽  
1975 ◽  
Vol 25 (10) ◽  
pp. 668-668
Keyword(s):  
Magnetic Fields ◽  
Electric Fields ◽  
Low Frequency ◽  
Clinical Effects ◽  
Electric And Magnetic Fields

scholarly journals The perturbation of electromagnetic fields at distances that are large compared with the object's size

2014 ◽  
Vol 80 (3) ◽  
pp. 865-892 ◽  
Author(s):  
Paul D Ledger ◽  
William R B Lionheart
Keyword(s):  
Magnetic Fields ◽  
Electromagnetic Fields ◽  
Asymptotic Expansions ◽  
Low Frequency ◽  
Perfect Conductor ◽  
Small Object ◽  
Leading Order ◽  
Material Parameters ◽  
Electric And Magnetic Fields

Abstract We rigorously derive the leading-order terms in asymptotic expansions for the scattered electric and magnetic fields in the presence of a small object at distances that are large compared with its size. Our expansions hold for fixed wavenumber when the scatterer is a (lossy) homogeneous dielectric object with constant material parameters or a perfect conductor. We also derive the corresponding leading-order terms in expansions for the fields for a low-frequency problem when the scatterer is a non-lossy homogeneous dielectric object with constant material parameters or a perfect conductor. In each case, we express our results in terms of polarization tensors.

Analysis of human brain exposure to low-frequency magnetic fields: A numerical assessment of spatially averaged electric fields and exposure limits

2013 ◽  
Vol 34 (5) ◽  
pp. 375-384 ◽  
Author(s):  
Xi-Lin Chen ◽  
Stefan Benkler ◽  
Nicholas Chavannes ◽  
Valerio De Santis ◽  
Jurriaan Bakker ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Human Brain ◽  
Electric Fields ◽  
Low Frequency ◽  
Exposure Limits ◽  
Numerical Assessment ◽  
Brain Exposure

scholarly journals Perception of risk from electric and magnetic fields: Stress effects and psychological aspects

2013 ◽  
Vol 30 (4) ◽  
pp. 497-506
Author(s):  
Marilda Emmanuel Novaes Lipp ◽  
Flavio Eitor Barbieri ◽  
Leonel Santánna ◽  
Ana Paula Justo ◽  
Ana Carolina Cabral ◽  
...  
Keyword(s):  
Risk Perception ◽  
Magnetic Fields ◽  
Low Frequency ◽  
Small Towns ◽  
Regulatory Agencies ◽  
Exposure Level ◽  
Perception Of Risk ◽  
Large Cities ◽  
Electric And Magnetic Fields ◽  
The Government

The present study aimed to investigate the perception of risk in the Brazilian population related to electric and magnetic fields. Six hundred adults were recruited from the surrounding communities. Three hundred of them lived in large cities and an equal number lived in small towns. A short questionnaire was constructed to assess risk perception, trust in government to control risk exposure, level of comfort with exposure to extra-low-frequency electromagnetic fields, measures perceived as necessary to reduce emotional discomfort, and trust in the regulatory agencies. The Lipp Inventory of Stress Symptoms for Adults was applied to assess stress levels. Findings indicate that the majority of the participants in this study did not trust the Government to provide protective measures from exposure to electric and magnetic fields, did not trust the regulatory agencies, felt that there is no adequate risk control and thought about it frequently, and some felt that line installations were being performed in excess and that this should be stopped. Results endorse the need for risk education and indicate that risk perception and feelings should be considered before starting new line installations. Risk communication should incorporate knowledge regarding social cognition since a large proportion of the people were concerned about electric and magnetic fields. Lack of communication can lead to a rejection of necessary transmission line installation, and to unnecessary or exaggerated fear.

Sign in / Sign up

Export Citation Format

Share Document