The EMF Biochip™ Technology- Neutralizing the Effects of EMF Field
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Review on Biophysical Modelling and Simulation Studies for Transcranial Magnetic Stimulation
Review on Biophysical Modelling and Simulation Studies for Transcranial Magnetic Stimulation Jose Gomez-Tames1, Ilkka Laakso2, and Akimasa Hirata1 1. Nagoya Institute of Technology, Department of Electrical and Mechanical Engineering, Nagoya, Aichi 466-8555, Japan 2. Department of Electrical Engineering and Automation, Aalto University, FI-00076, Finland. Corresponding author: Jose Gomez-Tames Nagoya Institute of Technology Tel & Fax: +81-52-735-7916 E-mail:[email protected] 1 Abstract Transcranial magnetic stimulation (TMS) is a technique for noninvasively stimulating a brain area for therapeutic, rehabilitation treatments and neuroscience research. Despite our understanding of the physical principles and experimental developments pertaining to TMS, it is difficult to identify the exact brain target as the generated dosage exhibits a non-uniform distribution owing to the complicated and subject-dependent brain anatomy and the lack of biomarkers that can quantify the effects of TMS in most cortical areas. Computational dosimetry has progressed significantly and enables TMS assessment by computation of the induced electric field (the primary physical agent known to activate the brain neurons) in a digital representation of the human head. In this review, TMS dosimetry studies are summarised, clarifying the importance of the anatomical and human biophysical parameters and computational methods. This review shows that there is a high consensus on the importance of a detailed cortical folding representation and an accurate modelling of the surrounding cerebrospinal fluid. Recent studies have also enabled the prediction of individually optimised stimulation based on magnetic resonance imaging of the patient/subject and have attempted to understand the temporal effects of TMS at the cellular level by incorporating neural modelling. -
EHC 238 Front Pages Final.Fm
This report contains the collective views of an international group of experts and does not necessarily represent the decisions or the stated policy of the International Commission of Non- Ionizing Radiation Protection, the International Labour Organization, or the World Health Organization. Environmental Health Criteria 238 EXTREMELY LOW FREQUENCY FIELDS Published under the joint sponsorship of the International Labour Organization, the International Commission on Non-Ionizing Radiation Protection, and the World Health Organization. WHO Library Cataloguing-in-Publication Data Extremely low frequency fields. (Environmental health criteria ; 238) 1.Electromagnetic fields. 2.Radiation effects. 3.Risk assessment. 4.Envi- ronmental exposure. I.World Health Organization. II.Inter-Organization Programme for the Sound Management of Chemicals. III.Series. ISBN 978 92 4 157238 5 (NLM classification: QT 34) ISSN 0250-863X © World Health Organization 2007 All rights reserved. Publications of the World Health Organization can be obtained from WHO Press, World Health Organization, 20 Avenue Appia, 1211 Geneva 27, Switzerland (tel.: +41 22 791 3264; fax: +41 22 791 4857; e- mail: [email protected]). Requests for permission to reproduce or translate WHO publications – whether for sale or for noncommercial distribution – should be addressed to WHO Press, at the above address (fax: +41 22 791 4806; e-mail: [email protected]). The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. -
Applied Engineering Using Schumann Resonance for Earthquakes Monitoring
applied sciences Article Applied Engineering Using Schumann Resonance for Earthquakes Monitoring Jose A. Gazquez 1,2, Rosa M. Garcia 1,2, Nuria N. Castellano 1,2 ID , Manuel Fernandez-Ros 1,2 ID , Alberto-Jesus Perea-Moreno 3 ID and Francisco Manzano-Agugliaro 1,* ID 1 Department Engineering, University of Almeria, CEIA3, 04120 Almeria, Spain; [email protected] (J.A.G.); [email protected] (R.M.G.); [email protected] (N.N.C.); [email protected] (M.F.-R.) 2 Research Group of Electronic Communications and Telemedicine TIC-019, 04120 Almeria, Spain 3 Department of Applied Physics, University of Cordoba, CEIA3, Campus de Rabanales, 14071 Córdoba, Spain; [email protected] * Correspondence: [email protected]; Tel.: +34-950-015396; Fax: +34-950-015491 Received: 14 September 2017; Accepted: 25 October 2017; Published: 27 October 2017 Abstract: For populations that may be affected, the risks of earthquakes and tsunamis are a major concern worldwide. Therefore, early detection of an event of this type in good time is of the highest priority. The observatories that are capable of detecting Extremely Low Frequency (ELF) waves (<300 Hz) today represent a breakthrough in the early detection and study of such phenomena. In this work, all earthquakes with tsunami associated in history and all existing ELF wave observatories currently located worldwide are represented. It was also noticed how the southern hemisphere lacks coverage in this matter. In this work, the most suitable locations are proposed to cover these geographical areas. Also, ELF data processed obtained from the observatory of the University of Almeria in Calar Alto, Spain are shown. -
A Review of the Safety of Transcranial Magnetic Stimulation
Pioneers in nerve stimulation and monitoring A REVIEW OF THE SAFETY OF TRANSCRANIAL MAGNETIC STIMULATION by Anwen Evans BSc, MSc © The Magstim Company Limited © The Magstim Company Limited The Safety of Transcranial Magnetic Stimulation Acknowledgement and Overview of Report Acknowledgement The author wishes to thank Professor Anthony T Barker, of the Royal Hallamshire Hospital, Sheffield, for all help received during the writing of this review © The Magstim Company Limited - 3 - 19 April 2007 The Safety of Transcranial Magnetic Stimulation Acknowledgement and Overview of Report © The Magstim Company Limited - 4 - 19 April 2007 The Safety of Transcranial Magnetic Stimulation Acknowledgement and Overview of Report Overview of Report The benefits of transcranial magnetic stimulation were first demonstrated in 1985. Recent developments mean that the technique is now moving out of the research laboratory and into the clinical setting. This report provides an overview of the evidence for the safety of transcranial magnetic stimulation as a medical technique. A literature search was undertaken using Pubmed and Google Scholar as the search engines. Parameters included the use of ‘transcranial magnetic stimulation’ with or without ‘safety’. The resultant report sets out some of the most common side effects of transcranial magnetic stimulation and evaluates their incidence and their comparative seriousness. The literature up to late 2006 suggests that unintentional seizure induction using single pulse TMS is a rare event. The intensity of stimulation required to reliably induce seizure is many times that used routinely in TMS and rTMS. Furthermore, the commonest side effect of TMS is headache. Research has also shown that single-pulse TMS is safe to administer in children and adolescents. -
Journal of Electromagnetic Analysis and Applications Special Issue on Bioelectromagnetics
Journal of Electromagnetic Scientific Research Open Access Analysis and Applications ISSN Online: 1942-0749 Special Issue on Bioelectromagnetics Call for Papers Bioelectromagnetics is the study of the effect of electromagnetic fields on biological systems. Bioelectromagnetism is studied primarily through the techniques of electrophysiology. In the late eighteenth century, the Italian physician and physicist Luigi Galvani first recorded the phenomenon while dissecting a frog at a table where he had been conducting experiments with static electricity. As one of most important worldwide problems in the modern life, bioelectromagnetics is of great attractions to researchers. In this special issue, we intend to invite front-line researchers and authors to submit original researches and review articles on exploring bioelectromagnetics. Potential topics include, but are not limited to: Bioelectromagnetic healing Numerical analysis of bioelectromagnetic fields Design of biomedical instruments Beneficial biological effects of non-ionizing electromagnetic fields Electromagnetic stimulation of human tissue Electromagnetic modeling of human body Electromagnetic interference with medical devices Authors should read over the journal’s Authors’ Guidelines carefully before submission. Prospective authors should submit an electronic copy of their complete manuscript through the journal’s Paper Submission System. Please kindly notice that the “Special Issue” under your manuscript title is supposed to be specified and the research field “Special -
Testimony of Professor Martin Blank Before the British Columbia Utilities Commission
COMMONWEALTH OF VIRGINIA BEFORE THE STATE CORPORATION COMMISSION APPLICATION OF ) ) PATH ALLEGHENY VIRGINIA ) TRANSMISSION CORPORATION ) CASE NO. PUE 2009-00043 ) For approval and certificate of electric ) Transmission facilities under Va. Code ) Sec. 56-46.1 and the Utilities Facilities Act, ) Va. Code sec. 65-265.1 et seq. ) DIRECT TESTIMONY AND EXHIBITS OF PROFESSOR MARTIN BLANK DEPARTMENT OF PHYSIOLOGY AND CELLULAR BIOPHYSICS COLLEGE OF PHYSICIANS AND SURGEONS COLUMBIA UNIVERSITY SUBMITTED ON BEHALF OF RESPONDENTS ALFRED T. GHIORZI AND IRENE A. GHIORZI 1 Q: Please state your name and business address. Ans: My name is Martin Blank. I am a professor at Columbia University, as well as a consultant on scientific matters related to my research on electromagnetic fields (EMF). My consulting business address is 157 Columbus Drive, Tenafly, NJ 07670. Q: Please summarize your educational and professional background. Ans: I have PhD degrees from Columbia University and University of Cambridge. I am an Associate Professor in the Department of Physiology and Cellular Biophysics at Columbia University, College of Physicians and Surgeons, where I have been teaching and doing research for over 45 years. I have taught Medical Physiology to first year medical, dental and graduate students, including a year as Course Director in charge of 250 students. However, my primary responsibility has been to conduct research, and I have specialized in the effects of EMF on cell biochemistry and cell membrane function. My most recent research is on health related effects of electromagnetic fields (EMF), primarily on stress protein synthesis and enzyme function. I have lectured on my research around the world. -
Through-The-Earth Electromagnetic Trapped Miner Location Systems. a Review
Open File Report: 127-85 THROUGH-THE-EARTH ELECTROMAGNETIC TRAPPED MINER LOCATION SYSTEMS. A REVIEW By Walter E. Pittman, Jr., Ronald H. Church, and J. T. McLendon Tuscaloosa Research Center, Tuscaloosa, Ala. UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF MINES Research at the Tuscaloosa Research Center is carried out under a memorandum of agreement between the Bureau of Mines, U. S. Department of the Interior, and the University of Alabama. CONTENTS .Page List of abbreviations ............................................. 3 Abstract .......................................................... 4 Introduction ...................................................... 4 Early efforts at through-the-earth communications ................. 5 Background studies of earth electrical phenomena .................. 8 ~ationalAcademy of Engineering recommendations ................... 10 Theoretical studies of through-the-earth transmissions ............ 11 Electromagnetic noise studies .................................... 13 Westinghouse - Bureau of Mines system ............................ 16 First phase development and testing ............................. 16 Second phase development and testing ............................ 17 Frequency-shift keying (FSK) beacon signaler .................... 19 Anomalous effects ................................................ 20 Field testing and hardware evolution .............................. 22 Research in communication techniques .............................. 24 In-mine communication systems .................................... -
Modelling of the Electrochemical Treatment of Tumours
TRITA-KET R115 ISSN 1104-3466 ISRN KTH/KET/R-115-SE MMOODDEELLLLIINNGG OOFF TTHHEE EELLEECCTTRROOCCHHEEMMIICCAALL TTRREEAATTMMEENNTT OOFF TTUUMMOOUURRSS EVA NILSSON DOCTORAL THESIS Department of Chemical Engineering and Technology Applied Electrochemistry Royal Institute of Technology Stockholm 2000 AKADEMISK AVHANDLING som med tillstånd av Kungliga Tekniska Högskolan i Stockholm, framlägges till offentlig granskning för avläggande av teknisk doktorsexamen fredagen den 10 mars 2000 kl. 13.00 i Kollegiesalen, Valhallavägen 79, Kungliga Tekniska Högskolan, Stockholm. ABSTRACT The electrochemical treatment (EChT) of tumours entails that tumour tissue is treated with a continuous direct current through two or more electrodes placed in or near the tumour. Promising results have been reported from clinical trials in China, where more than ten thousand patients have been treated with EChT during the past ten years. Before clinical trials can be conducted outside of China, the underlying destruction mechanism behind EChT must be clarified and a reliable dose-planning strategy has to be developed. One approach in achieving this is through mathematical modelling. Mathematical models, describing the physicochemical reaction and transport processes of species dissolved in tissue surrounding platinum anodes and cathodes, during EChT, are developed and visualised in this thesis. The considered electrochemical reactions are oxygen and chlorine evolution, at the anode, and hydrogen evolution at the cathode. Concentration profiles of substances dissolved in tissue, and the potential profile within the tissue itself, are simulated as functions of time. In addition to the modelling work, the thesis includes an experimental EChT study on healthy mammary tissue in rats. The results from the experimental study enable an investigation of the validity of the mathematical models, as well as of their applicability for dose planning. -
Investigating the Effects of Magnetic Fields Generated During Transcranial Magnetic Stimulation Using Computer and Biological Models
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2020 Investigating the effects of magnetic fields generated during Transcranial Magnetic Stimulation using computer and biological models Joseph Boldrey Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Recommended Citation Boldrey, Joseph, "Investigating the effects of magnetic fields generated during Transcranial Magnetic Stimulation using computer and biological models" (2020). Graduate Theses and Dissertations. 18281. https://lib.dr.iastate.edu/etd/18281 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Investigating the effects of magnetic fields generated during Transcranial Magnetic Stimulation using computer and biological models by Joseph Corrie Boldrey A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Electrical Engineering (Electromagnetics, Microwave, and Nondestructive Evaluation) Program of Study Committee: David C. Jiles, Major Professor Long Que Ian Schneider Mani Mina The student author, whose presentation of the scholarship herein was approved by the program of study committee, is solely responsible for the content of this thesis. The Graduate College will ensure this thesis is globally accessible and will not permit alterations after a degree is conferred. Iowa State University Ames, Iowa 2020 Copyright © Joseph Corrie Boldrey, 2020. All rights reserved. ii TABLE OF CONTENTS Page ABSTRACT .................................................................................................................................. -
Extremely Low Frequency (Elf) Fields
This report contains the collective views of an international group of experts and does not necessarily represent the decisions or the stated policy of either the World Health Organization, the United Nations Environment Programme, or the International Radiation Protection As- sociation. Environmental Health Criteria 35 EXTREMELY LOW FREQUENCY (ELF) FIELDS - Published under the joint sponsorship of the United Nations Environment Programme, the World Health Organization, and the International Radiation Protection Association S World Health Organization V Geneva, 1984 Is- ISBN 92 4 154095 8 - ©World Health Organization 1984 Publications of the World Health Organization enjoy copyright protec- tion in accordance with the provisions of Protocol 2 of the Universal Copy- right Convention. For rights of reproduction or translation of WHO publica- tions, in part or in toto, application should be made to the Office of Publica- tions, World Health Organization, Geneva, Switzedand. The World Health Organization welcomes such applications. The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, or con- cerning the delimitation of its frontiers or boundaries. The mention of specific companies of of certain manufacturers' products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a similar nature that are not men- tioned. Errors and omissions excepted, the names of proprietary products are distingthshed by initial capital letters. PRINTED IN FINLAND 8416131 vAI.4MALA - 5500 -3- CONTENTS Page ENVIRONMENTAL HEALTH CRITERIA FOR EXTREMELY LOW FREQUENCY (ELF) FIELDS I. -
Questions and Answers About Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields OET BULLETIN 56
Federal Communications Commission Office of Engineering & Technology Questions and Answers about Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields OET BULLETIN 56 Fourth Edition August 1999 Questions and Answers about Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields OET BULLETIN 56 Fourth Edition August 1999 Authors Robert F. Cleveland, Jr. Jerry L. Ulcek Office of Engineering and Technology Federal Communications Commission Washington, D.C. 20554 INTRODUCTION Many consumer and industrial products and applications make use of some form of electromagnetic energy. One type of electromagnetic energy that is of increasing importance worldwide is radiofrequency (or "RF") energy, including radio waves and microwaves, which is used for providing telecommunications, broadcast and other services. In the United States the Federal Communications Commission (FCC) authorizes or licenses most RF telecommunications services, facilities, and devices used by the public, industry and state and local governmental organizations. Because of its regulatory responsibilities in this area the FCC often receives inquiries concerning whether there are potential safety hazards due to human exposure to RF energy emitted by FCC-regulated transmitters. Heightened awareness of the expanding use of RF technology has led some people to speculate that "electromagnetic pollution" is causing significant risks to human health from environmental RF electromagnetic fields. This document is designed to provide factual information and to answer some of the most commonly asked questions related to this topic.1 WHAT IS RADIOFREQUENCY ENERGY? Radio waves and microwaves are forms of electromagnetic energy that are collectively described by the term "radiofrequency" or "RF." RF emissions and associated phenomena can be discussed in terms of "energy," "radiation" or "fields." Radiation is defined as the propagation of energy through space in the form of waves or particles. -
Magnetite in Human Tissues: a Mechanism for the Biological Effects of Weak ELF Magnetic Fields
Bioelectromagnetics Supplement 1 :101-113 (1992) Magnetite in Human Tissues: A Mechanism for the Biological Effects of Weak ELF Magnetic Fields- Joseph L. Kirschvink, Atsuko Kobayashi-Kirschvink, Juan C. Diaz- Ricci, and Steven J. Kirschvink Division of Geological and Planetary Sciences, The California Institute of Technol- ogy, Pasadena, California (J.L. K., A. K. -K., J. C.D. -I?.); Department of Mathematics, San Diego State University, San Diego, California (S.J. K.) Due to the apparent lack of a biophysical mechanism, the question of whether weak, low- frequency magnetic fields are able to influence living organisms has long been one of the most controversial subjects in any field of science. However, two developments during thc past decade have changed this perception dramatically, the first being the discovery that many organisms, including humans, biochemically precipitate the ferrimagnetic mineral magnetite (Fe,O,). In the magnetotactic bacteria, the geomagnetic response is based on either biogenic magnetite or greigite (Fe,S,). and reasonably good evidence exists that this is also the case in higher animals such as the honey bee. Second, the development of simple behavioral conditioning experiments for training honey bees to discriminate magnetic fields demonstrates conclusively that at least one terrestrial animal is capable of detecting earth-strength magnetic fields through a sensory process. In turn, the exist- ence of this ability implies the presence of specialized receptors which interact at the cellular level with weak magnetic fields in a fashion exceeding thermal noise. A simple calcu- lation shows that magnetosomes moving in response to earth-strength ELF fields are capable of opening trans-membrane ion channels, in a fashion sitnilar to those predicted by ionic resonance models.