From owner-emf-bio@net.bio.net Wed Jan 01 22:00:00 1997 Path: biosci!biosci!not-for-mail From: Ben Greenebaum Newsgroups: bionet.emf-bio Subject: Bioelectromagnetics Vol. 17, No. 6, 1996 Table of Contents Date: 2 Jan 1997 10:09:05 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 101 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <5agtk1$nr6@net.bio.net> NNTP-Posting-Host: net.bio.net BIOELECTROMAGNETICS VOLUME 17, No. 6, 1996, Table of Contents ============================================================================== NOTE: Please contact your library or the authors for reprints or further information about specific articles, NOT the editor, Society or Publisher! For information about the journal, contact the Editor. For member subscription information, contact the Society at 7519 Ridge Road, Frederick, MD 21702-3519. For library or other non-member subscription information, contact the Publisher, Wiley/Liss, Inc., 605 Third Avenue, New York, NY 10158-0012, Attn.: Subscription Dept., 9th Floor. Ben Greenebaum, Editor University of Wisconsin-Parkside, Box 2000, Kenosha, WI 53141-2000 414-595-2065; Fax 414-595-2056 Internet: bems@cs.uwp.edu ============================================================================== Bioelectromagnetics Journal of the Bioelectromagnetics Society, the Society for Physical Regulation in Biology and Medicine, and the European Bioelectromagnetics Assocation Volume 17, Number 6, 1996 (c) Wiley-Liss, Inc. i Editor's Note Articles 427 Activation-Dependent and Biphasic Electromagnetic Field Effects: Model Based on Cooperative Enzyme Kinetics in Cellular Signaling C. Eichwald and J. Walleczek 436 Coronary Heart Diseases: Assessment of Risk Associated With Work Exposure to Ultralow-Frequency Magnetic Fields N.G. Ptitsyna, G. Villoresi, Y.A. Kopytenko, V.A. Kudrin, M.I. Tyasto, E.A. Kopytenko, N. Iucci, P.M. Voronov, and D.B. Zaitsev 445 Conductivity of a Chronic Wound Model Robert Goldman and Solomon Pollack 450 Electric Fields and Proliferation ina Chronic Wound Model Robert Goldman and Solomon Pollack 458 Conductivities of Pig Dermis and Subcutaneous Fat Measured With Rectangular Pulse Electrical Current K. Cheng, P.P. Tarjan, and P.M. Mertz 467 Weak Extremely-Low-Frequency Magnetic Field-Induced Regeneration Anomalies in the Planarian Dugesia tigrina K.A. Jenrow, C.H. Smith, and A.R. Liboff 475 Characterizing Cellular Systems by Means of Dielectric Spectroscopy Eugen Gheorghiu 483 Numerical and Experimental Dosimetry of Petri Dish Exposure Setups Michael Burkhardt, Katja Pokovic, Marcel Gnos, Thomas Schmid, and Niels Kuster 494 Spatial Learning Deficit in the Rat After Exposure to a 60 Hz Magnetic Field Henry Lai 497 Effect of Continuous-Wave and Amplitude-Modulated 2.45 GHz Microwave Radiation on the Liver and Brain Aminoacyl-Transfer RNA Synthetases of in Utero-Exposed Mice Gyorgyi Kubinyi, Gyorgy Thuroczy, Jozsef Bakos, Erzsebet Boloni, Hanna Sinary, and Laszlo D. Szabo 504 Protein Kinase C Activity Is Altered in HL60 Cells Exposed to 60 Hz AC Electric Fields O. Holian, R.D. Astumian, R.C. Lee, H.M. Reyes, B.M. Attar, and R.J. Walter Brief Communications 510 Measurements Described in a Paper by Blackman, Blanchard, Benane, and House are Statistically Invalid Robert K. Adair 512 Nonbionmial Distribution of Relative Neurite Outgrowth in PC-12 Cells Carl F. Blackman, Dennis E. House, and Janie Page Blanchard 516 Mechanical Vibration in "Double-Wound" Magnetic Field Exposure Coils Robert A. Jones, Jan Walleczek, and W. Ross Adey 519 No Effect of Exposure to Static and Sinusoidal Magnetic Fields on Nitric Oxide Production by Macrophages S. Mnaimneh, M. Bizri, and B. Veyret 522 Referees for Bioelectromagnetics, 1996 527 Author Index for Volume 17 531 Subject Index for Volume 17 (c) 1996 Wiley-Liss, Inc. From owner-emf-bio@net.bio.net Wed Jan 01 22:00:00 1997 Path: biosci!biosci!not-for-mail From: afrey@UU.NET (Allan Frey) Newsgroups: bionet.emf-bio Subject: An application of emf? Date: 2 Jan 1997 11:07:12 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 42 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <5ah110$ia@net.bio.net> NNTP-Posting-Host: net.bio.net The following press release was fowarded: Friday December 27 10:06 AM EST Heating Homes With Microwaves NEW YORK - Microwave heating could warm the home, double as a power supply, and cut home heating costs by as much as 75 percent, according to scientists at the Microwave Research Center in Marlborough, N.H. A report in the Dec. 18 issue of New Scientist describes how researchers are acting as "guinea pigs" for the experimental home heating system, which warms people by exciting the body's water molecules, thus raising body temperature. The microwave home heating test room has one wall containing a hole that permits a standard 800-watt transmitter to send microwaves into the room. The walls are lined with metal to reflect microwaves around the room, and giant metal blades attached to the walls "stir" the microwaves to prevent hot spots -- much as a carousel in a microwave oven rotates food to ensure even heating or cooking. The researchers discovered that they felt some warmth at microwave levels that were "several hundred times less than the level inside a microwave oven." They believe the system would be efficient, slash household heating bills, and, since microwaves can cause light bulbs to switch on, the system could be used to power "wireless lights." Some critics say the system is "doomed"; others point to the many hurdles that must be overcome. Technical problems involving uneven heating of furniture and other objects in a room would have to be worked out. Safety is an issue, since heat could build up in parts of the body that are very exposed, such as the eyes. Some say the skull might concentrate microwaves into the brain. Even if the system eventually was proven safe, it may be difficult to persuade the public of its safety. Even advocates admit that microwave heating of homes won't happen any time soon. According to Buffer, it will take "a decade of research before we see any movement." From owner-emf-bio@net.bio.net Fri Jan 03 22:00:00 1997 Path: biosci!biosci!not-for-mail From: woodley@travel-net.com (Richard W. Woodley) Newsgroups: bionet.emf-bio Subject: Bridlewood EMF Info Service Additions Date: 3 Jan 1997 17:09:59 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 11 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <5akal7$34r@net.bio.net> NNTP-Posting-Host: net.bio.net We have recently added a new section on the National Academy of Sciences EMF report and responses to it and a new link to the World Health Organization International EMF Project as well as made some other revisions to the site. More to come in the New Year. ********************* Richard W. Woodley ********************* woodley@travel-net.com *********** www.ncf.carleton.ca/~ab190/ -------------------------------------------------------------- National Capital Freenet Information Provider Bridlewood Electromagnetic Fields (EMFs) Information Service www.ncf.carleton.ca/bridlewood-emfinfo/ From owner-emf-bio@net.bio.net Sat Jan 18 22:00:00 1997 Path: biosci!biosci!not-for-mail From: Allan Frey Newsgroups: bionet.emf-bio Subject: Charter & access information Date: 19 Jan 1997 09:20:02 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 189 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <5btl42$evi@net.bio.net> Reply-To: afrey@UU.NET NNTP-Posting-Host: net.bio.net Newsgroup's charter & access The emf-bio Newsgroup was set up by the International Society for Bioelectricity, a FASEB* Society (afrey@uunet.uu.net Allan H. Frey), for use by the biological research community. *FASEB (The Federation of American Societies in Experimental Biology) is the largest coalition of life sciences societies in the United States, and represents over 42,000 biomedical and biological scientists. Charter and moderation policy: The purpose of the Newsgroup is to provide a means of easy communication among people doing research in or interested in electromagnetic field interactions with biological systems. It also provides the general biological community with a window into a field which has broad implications for biology. The Newsgroup is primarily for discussions among bioscientists. Lay people interested in hazards should contact the appropriate groups for such information such as the National EMR Alliance (212-554-4073). Those interested in arguing about hazards, which is a policy issue, have other forums where discussions of hazard policy issues are appropriate. The Newsgroup can be used for activities such as discussion of books, articles, methods and experiments. Theories can be debated and the validity of experiments and approaches can be discussed. Important new findings can be announced. Users can pose questions on techniques to be used in experiments and seek solutions for problems they have encountered in experiments. A preprint of a paper can be posted for comment before sending it in for publication or starting the next experiment. Journal editors and scientists can post papers or abstracts of papers accepted for publication or published papers. Announcements of funding for new programs and jobs can be posted. The newsgroup is moderated, but the bounds of the charter are loose. Only the clearly inappropriate messages as defined by the charter will not appear. The emf-bio newsgroup is a regular usenet group. You can access it when you read newsgroups. The first time type: get bionet.emf-bio After that it will appear as a newgroup (if there is news) whenever you read the newsgroups that you have subscribed to. If you only have email and can't read newsgroups, do the following: send a mail message to the Internet address biosci-server@net.bio.net Leave the Subject: line of the message blank and enter the following line into the body of the mail message: subscribe emf-bio This message will be automatically read by the computer and your e-mail address will be extracted from the mail header and added to the list. Allan Allan H. Frey, Moderator email afrey@uunet.uu.net 11049 Seven Hill Lane voice 301.299.5181 Potomac, MD 20854, USA How to look at archives: ------------------------------------ Archives for EMF-BIO/bionet.emf-bio are kept in the anonymous FTP account at net.bio.net [134.172.2.69]. Look in the directory pub/BIOSCI/EMF-BIO for posting archives. Each file is assigned a date such as 9312 for December 1993. Please note that ours is a UNIX system and all file and directory names are case-sensitive, i.e., upper case file names are different from lower case names. You can also access these same files via Gopher if you start a gopher session using net.bio.net as your gopher server. Gopher also allows you to view the individual messages within each monthly archive file. The files are in the EMF-BIO directory. WWW/Mosaic users can open the URL gopher://net.bio.net/. Postings to bionet.emf-bio are also WAIS indexed and can be searched via either gopher or WAIS at our site. In gopher the option at net.bio.net is "Search Bionet USENET Articles" and in WAIS one should use the WAIS source biosci.src. This is a WAIS index of all BIOSCI/bionet messages including this newsgroup. Please see the BIOSCI FAQ for details. The FAQ can be requested from biosci-help@net.bio.net. Canceling your subscription: ---------------------------- IF YOU ARE LOCATED IN EUROPE, AFRICA, OR CENTRAL ASIA: first be sure that you are sending mail from the address at which you signed up to receive news postings, and then send the command (in the body of your mail message) UNSUB bionet-news.bionet.emf-bio to MXT@dl.ac.uk. This message will be automatically read by the computer and your e-mail address will be extracted from the mail header and removed from the list. IF YOU ARE LOCATED IN THE AMERICAS OR THE PACIFIC RIM: send a message to biosci-server@net.bio.net Leave the Subject: line of the message blank and enter the following line into the body of the mail message: unsubscribe emf-bio in the body of the message. Please be sure to send the message from the account whose address matches the one on the list. If your address differs, we will be notified automatically and will remove you manually from the list if we can determine what was your old address. Please contact biosci-help@net.bio.net if you have problems. IF YOU HAVE A PROBLEM: ---------------------- Please send a message to one of the following addresses depending upon your location Address Location ------- -------- biosci@daresbury.ac.uk Europe, Africa, and Central Asia biosci-help@net.bio.net Americas and the Pacific Rim and someone on the staff will help you. How to post a message to the group: ----------------------------------- If you use news, simply post a message into bionet.emf-bio. Be sure to set your "distribution" to either bionet or world or else the message might not leave your site!! To post by e-mail, mail your message to one of the following addresses depending upon your location: Posting Address Location --------------- -------- emf-bio@daresbury.ac.uk Europe, Africa, and Central Asia emf-bio@net.bio.net Americas and the Pacific Rim and your message will be distributed automatically to everyone on the list and the USENET newsgroup. There is no editorial intervention. PLEASE DO NOT SEND SUBSCRIPTION REQUESTS TO THE POSTING ADDRESSES as you will bother everyone on the newsgroup!!! How to reply to a message on the group: --------------------------------------- If you are using a newsreader, simply use the reply or follow-up command on your newsreader (these vary from program to program) to send either private or public replies. If you are using e-mail, replies to messages that you receive will *NOT* be automatically returned to the group. This is the standard for Internet mailing lists as opposed to BITNET LISTSERVs which often send all replies back to everyone. You must be certain that your reply contains either of the two newsgroup posting addresses above in your message header if you want to share it with everyone on the group. Otherwise in most cases your reply may go back to only the original poster of the message to which you are replying. ALWAYS be certain that you examine the address on your messages before you send them!!! Once a message is sent there is no way to cancel it or bring it back!!! Some non-Internet compliant mail systems may attempt to send replies to our error-trapping address called BIOSCI-REQUEST. If yours does this, please be sure to readdress your message to emf-bio@net.bio.net or emf-bio@daresbury.ac.uk if you want to send it to the newsgroup. From owner-emf-bio@net.bio.net Sat Jan 18 22:00:00 1997 Path: biosci!biosci!not-for-mail From: "Ahmed Lazrak" Newsgroups: bionet.emf-bio Subject: Resume: eletcrophysiology and biophysics Date: 19 Jan 1997 09:30:44 -0800 Organization: home Lines: 144 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <5btlo4$fq2@net.bio.net> NNTP-Posting-Host: net.bio.net Ahmed Lazrak 411 West Vanderbilt Drive Oak Ridge, TN 37830 or Ahmed Lazrak Ph.D. ORNL EMF Bioeffects Research Program Oak Ridge National Laboratory PO Box 2008, MS-6125 Oak Ridge, TN 37831-6125 Tel: 423-241-4358 Fax: 423-576-4407 Ahmed.Lazrak@Ibm.net BnLent@Geocities.com Lazraka@ornl.gov Home: http://www.geocities.com/CapeCanaveral/Lab/2020 Goal: A career in biological sciences. Languages: French, English and Arabic. Education: * Doctorate or Ph.D. 1989. Cell Biology & Molecular Biology Cell Electrophysiology and Biophysics University of Poitiers, France * Master's Degree. 1985. Cell Biology & Molecular Biology University of Poitiers, France * B.Sc. 1983. University Med I Oujda, Morocco General Biology & Geology Actual position: Research Scientist Some of my research interests: Role of calcium ions in Cell signaling, in excitation-contraction coupling, and in cell to cell communication. Employment History: 1. Oak Ridge National Laboratory (ORNL)and Oak Ridge Associated Universities (ORAU), Oak Ridge, Tennessee. Department: Energy, RAPID Program. From: May 11,1995-Present Duties: ELF and EMF Biological effects 2. University Of Rochester, Rochester, NY Department: Physiology From: September, 1991-April, 1995 Duties Included: Gap junction regulation by calcium, hydrogen ions, and voltage. Expertise: Electrophysiology and Biophysics * Patch clamp electrophysiology, Whole cell and double whole cell techniques. * Double voltage clamp of isolated pairs of myocytes and paired oocytes. * Imaging procedures of intracellular calcium and Hydrogen ions. * Use computers and related hardware and scientific software for running experiments, for data acquisition and analysis: Pclamp6.03 , Axotape2 , Axoscope1.1, Origin 4, Microsoft Office, Statistica, Sigmaplot * Primary cell culture of embryonic cells. * Cell culture procedures. * Floating Micro electrode in association with a force transducer for simultaneous measurement of electrical and contractile activities of isolated frog skeletal muscle fibers. * Dissection and Micro-dissection of skeletal muscle fibers, mammalian organs, and Frog oocytes. * Detection of myocytes and skeletal muscle fibers mechanical activity, using electromechanical sensors. * Cell isolation techniques, enzymatic procedures, from embryonic and adults organs (heart, liver...etc.). * Ability to construct setups, adapt and implement new techniques as needed. Research Experience April 1995-Present: Effects of electromagnetic fields on cell membrane function. Cells in culture, cell lines and primary cultures, are exposed to ELF-EMF and the effect on the cell to cell communication is studied. The Junctional coupling is measured using the double whole cell patch clamp procedure on cell pairs. The effects of ELF-EMF is studied on primary cultures of embryonic myocytes, the contraction of myocytes is monitored using an electromechanical sensor. In collaboration with Doctor Paul C. Gailey (Energy Division, ORNL) and Doctor Guy D. Griffin (Health Science Research Division, ORNL). September 1991-April 1995: Regulation of the gap junction function by second messengers in the Novikoff hepatoma cell line. The dual method of double-whole cell configuration (patch-clamp) and voltage-clamp is used to measure the macroscopic Junctional current and single gap Junctional channel. The intracellular imaging method is used to measure the changes in the intracellular calcium concentration in cell pairs following treatments that are known to modulate and/or to reduce the cell-to-cell coupling. January 1990-June 1991: An attempt to the study of the electrophysiological changes in the red blood cell membrane Electrophysiology induced by the Malaria parasite, Plasmodium Falciparum. In collaboration with Professors J. Dlze and J. Schrevel. 1986-1989: Ph.D. Study of the electrical properties of the isolated pairs of myocytes from adult rat hearts, the study was performed using the double micro electrodes and double-whole cell (patch-clamp) under voltage clamp or current-clamp conditions. Supervisor: Professor J. Dlze, University of Poitiers, France. 1984-1985: Master's research project: Study of the excitation-contraction coupling of the isolated skeletal muscle fiber of the frog. The study was performed using simultaneously floating micro-electrode for recording the electrical activity while the contractile activity was recorded using an electromechanical transducer. Under the supervision of Professor J. Dlze, University of Poitiers, France. Postdoctoral Experience * University of Rochester, NY, USA Physiology: September, 1991-April 1995 * Oak Ridge National Laboratory (ORNL), Energy Division and Oak Ridge Associated Universities (ORAU), USA Health effect of Extremely low Frequency Electromagnetic Fields April 1995- Present Publications 21 From owner-emf-bio@net.bio.net Tue Jan 28 22:00:00 1997 Path: biosci!biosci!not-for-mail From: Ben Greenebaum Newsgroups: bionet.emf-bio Subject: Bioelectromagnetics Vol. 18, No. 1, 1997 Table of Contents (fwd) Date: 29 Jan 1997 07:43:08 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 94 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <5cnr6c$gvl@net.bio.net> NNTP-Posting-Host: net.bio.net BIOELECTROMAGNETICS VOLUME 18, No. 1, 1997 Table of Contents ============================================================================== NOTE: Please contact your library or the authors for reprints or further information about specific articles, NOT the editor, Society, or Publisher! For information about the journal, contact the Editor. For member subscription information, contact the Society at 7519 Ridge Road, Frederick, MD 21702-3519. For library or other non-member subscription information, contact the Publisher, Wiley/Liss, Inc., 605 Third Avenue, New York, NY 10158-0012, Attn.: Subscription Dept., 9th Floor. Ben Greenebaum, Editor University of Wisconsin-Parkside, Box 2000, Kenosha, WI 53141-2000 Internet: bems@cs.uwp.edu ============================================================================== Bioelectromagnetics Journal of Bioelectromagnetics Society, the Society for Physical Regulation in Biology and Medicine, and the European Bioelectromagnetics Association Volume 18, Number 1, 1997 (c) Wiley-Liss, Inc. Associate Editor's Note 1 Electrochemical Treatment of Tumor C.K. Chou Articles 2 Effects of Direct Current on Dog Liver: Possible Mechanisms for Tumor Electrochemical Treatment Kai-hua Li, Yu-ling Xin, Yi-nong Gu, Bao-lan Xu, De-jun Fan, and Bang-fa Ni 8 Electrochemical Treatment of Lung Cancer Yu-ling Xin, Fu-zhou Xue, Bing-sheng Ge, Feng-rui Zhao, Bin Shi, and Wei Zhang 14 Electrochemical Treatment of Mouse and Rat Fibrosarcomas with Direct Current Chung-Kwang Chou, John A. McDougall, Chul Ahn, and Nayana Vora 25 Mechanism of Action of Weak Electromagnetic Field on Ionic Currents in Aqueous Solutions of Amino Acids V.V. Novikov and A.V. Karnaukhov 28 Amyotrophic Lateral Sclerosis and Occupational Exposure to Electromagnetic Fields Z. Davanipour, E. Sobel, J.D. Bowman, Z. Qian, and A.D. Will 36 Histological Changes During Development of the Cerebellum in the Chick Embryo Exposed to a Static Magnetic Field Auxiliadora Espinar, Veronica Piera, Amparo Carmona, and Juan M. Guerrero 47 Exposure of Children to Residential Magnetic Fields in Norway: Is Proximity to Power Lines an Adequate Predictor of Exposure? Arnt Inge Vistnes, Gro B. Ramberg, Lars Rune Bjornevik, Tore Tynes, and Tor Haldorsen 58 Cell-cycle Kinetics of Friend Erythroleukemia Cells in a Magnetically Shielded Room and in a Low-Frequency/Low-Intensity Magnetic Field T. Eremenko, C. Esposito, A. Pasquarelli, E. Pasquali, and P. Volpe 67 Comparison of Coupling of Humans to Electric and Magnetic Fields With Frequencies Between 100 Hz and 100 kHz W.T. Kaune, J.L. Guttman and R. Kavet Brief Communications 77 Effects of Low-Voltage Static Electric Fields on Energy Metabolism in Astrocytes Rong Huang, Liang Peng, and Leif Hertz 81 Static Uniform Magnetic Fields and Amoebae Sharon G. Berk, Sujata Srikanth, Satish M. Mahajan, and Carl A. Ventrice 85 Electric-Field Ion Cyclotron Resonance A.R. Liboff Erratum 88 Acute effects of 50 Hz magnetic field exposure on human visual task and cardiovascular performance. Bioelectromagnetics 17:131-137. C.J. Whittington, J.V. Podd and B.R. Rapley (c) 1997 Wiley-Liss, Inc. From owner-emf-bio@net.bio.net Tue Jan 28 22:00:00 1997 Path: biosci!biosci!not-for-mail From: rice7559 Newsgroups: bionet.emf-bio Subject: emf shielding Date: 29 Jan 1997 07:41:46 -0800 Organization: Southern Oregon State College Lines: 16 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <5cnr3q$guh@net.bio.net> Reply-To: rice7559@tao.sosc.osshe.edu NNTP-Posting-Host: net.bio.net Are there products available to effectively shield from emf? I have found on the internet a " Cybercap" (baseball cap style), aprons, other clothing, and also a magnetic shielding foil...all are relatively expensive, and I wonder if they really work? (lessemf.com) Application I am particularly interested in is for sewing machine oper- ators, who must hold their head low, very near the machine while sewing. My sister is a seamstress, and is very worried about this now, after seeing a newspaper account stating that her occupation recieves more intense exposure than just about anyone else. Have you guys done any testing along these lines, as to what forms of shielding are effective? If this is not really in your field, perhaps you could refer me to a more appropriate source? From owner-emf-bio@net.bio.net Wed Jan 29 22:00:00 1997 Path: biosci!biosci!not-for-mail From: "Wenzl, Thurman" Newsgroups: bionet.emf-bio Subject: RE: emf shielding Date: 30 Jan 1997 14:04:14 -0800 Organization: BIOSCI International Newsgroups for Molecular Biology Lines: 37 Sender: daemon@net.bio.net Approved: afrey@uu.net Distribution: world Message-ID: <32F0667F@SmtpOut.em.cdc.gov> NNTP-Posting-Host: net.bio.net peter Gajsek (from Ljubljana, Slovenia) gave a talk in Stockholm on this issue in Sept '94, but I don't remember the details, and have no idea of 'effectiveness.' His fax no is 386 61 218020, but I don't know if you have to precede that with anything when calling from the US. But my first reaction on exposure reduction in this sewing case is to increase the distance; the 60Hz sources are presumably the motor and perhaps the light (if it's fluorescent and the ballast is close); in the first case, can the motor be moved; in the second, maybe convert to incandescent. Thurman Wenzl Usual disclaimers, these are solely my own opinions. ---------- From: rice7559 To: nobody Subject: emf shielding Date: Monday, January 27, 1997 4:10PM Are there products available to effectively shield from emf? I have found on the internet a " Cybercap" (baseball cap style), aprons, other clothing, and also a magnetic shielding foil...all are relatively expensive, and I wonder if they really work? (lessemf.com) Application I am particularly interested in is for sewing machine oper- ators, who must hold their head low, very near the machine while sewing. My sister is a seamstress, and is very worried about this now, after seeing a newspaper account stating that her occupation recieves more intense exposure than just about anyone else. Have you guys done any testing along these lines, as to what forms of shielding are effective? If this is not really in your field, perhaps you could refer me to a more appropriate source?