Science Says… October 10, 2006Posted by healthyself in Animal Research, Antennas, Bioeffects, Biomimetic, Blogroll, Brainwave Interference, Cell changes, Cell Cultures, Cell death, cell membrane, Cell phone safety, Cell Phones, Cells, Cellular Morphology, Central Nervous System, Children's health, Chromosomal damage, Computer Rooms, Conversations, Cordless Phones, Cytotoxic Effects, Diagnostic marker, DNA, Electrical Components, Electrical Pulses, Electrical Surges, Electrical Wiring, Electrochemical, Electromagetic pollution, Electromagnetic Communications, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, EMF Research, EMF's, EMR, Encoding, Entrainment, Entropy, Environment, Epidemiology, Exposure, Frequencies, genes, GHz, grams of tissue, Hand Portables, Handheld Units, Health related, HF, High Frequencies, high voltage transmission lines, HOuseholds, Hz, Inner Agitation, Integrative Medicine, Interdisciplinary, Intuition, LF, Lifestyle, Long Term Health Risks, Low Frequencies, Medical Research, Men's Health, Metabolic Changes, MF, MHz, Microwave exposure, Mitochondria, nerves, Networks, Neural Electrophysiology, neurological, Neurotransmitters, Non-Thermal Levels, Parenting, Pulsed Radiation, Pulses, radiation, Radio Waves, Radios, Research Needed, Risk of Disease, Symptoms, Waves, WiFi, Wireless Phones, Women's Health, Workplace.
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FDTD analysis of a gigahertz TEM cell for ultra-wideband pulse exposure studies of biological specimens
IEEE Trans Biomed Eng. 2006 May;53(5):780-9.
Ji Z, Hagness SC, Booske JH, Mathur S, Meltz ML.
Department of Electrical and Computer Engineering, University of Wisconsin, 1415 Engineering Drive, Madison, WI 53706, USA. email@example.com
Gigahertz transverse electromagnetic (GTEM) transmission cells have been previously used to experimentally study exposure of biological cells to ultra-wideband (UWB), monopolar, electromagnetic pulses. Using finite-difference time-domain (FDTD) simulations we examine the time-dependent electric field waveforms and energy dose spatial distributions within a finite volume of biological cell culture medium during these experiments. The simulations show that when one or more flasks containing cell culture media are placed inside the GTEM cell, the uniform fields of the empty GTEM cell are significantly perturbed. The fields inside the cell culture medium, representing the fields to which the biological cells are exposed, are no longer monopolar and are spatially highly nonuniform. These effects result from a combination of refraction and distortion of the incident wave, combined with excitation of resonant eigenmodes within the cell culture medium volume. The simulations show that these distortions of the incident waveform may be mitigated by supporting the sample on a high permittivity pedestal and modifying the incident waveform to more closely approximate a Gaussian pulse. Under all simulated conditions, the estimated maximum temperature rises are completely negligible, ensuring that any experimentally observed unusual cell function or histopathology can be associated with nonthermal effects.
PMID: 16686400 [PubMed – in process]
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Wrap your head around this:
As technology gets smaller, faster, more futuristic, imagine yourself connected to a device that doesn’t just lamely hang on your ear but invades your skull. Not yet. Soon…. This trend is more than just folks looking like something off the Star Trek set. It is, say some academics, cultural critics and industry analysts, the latest of inevitable steps in the blurring of the line between man and machine…”I like machines a lot better than humans,”…businessman said before flying home….”I just have to interface with humans to do business.”….….sometimes falls asleep with the thing (Bluetooth) still on his ear….”Once you start,” he said, “you don’t go back.” ”Now it’s on us. Clinging like a caterpillar to our cartilage. When, then, will it be in us?” Some still scoff at the idea of Borglike implants. But plenty of others say it’s inevitable. Even coming soon.” “This gets into the question not so much what we’re going to be capable of; it’s more a question of what we as a species decide we want,” “… “This is a conversation about what it means to be human.” “We call it the Bluetooth ecosystem….”We…believe everything in a consumer’s life revolves around their cell phone.”…they can be synched with you.”… “We’re going to wind up in essence with ‘intelligent earrings,…”The size is going to continue to decrease until it disappears,”…And then . . . “the next step” and “a relatively minor one.”…” they’ll go internal pretty soon,”"Not in a matter of months. But maybe five or 10 years from now.” ”A cyborg is a human with robotic enhancements. Some people are cyborgs already…”We’re moving inside” the body with cell phones…a bioethicist and sociologist …”My opinion is it is realistic. But for at least a couple of decades, I don’t think it’s going to be terribly attractive to open up our heads.”….the man in the airport, said he wanted anything that would make him more efficient - except that….”I’m interested in what this means for the future of humans,” ….Not off in the distant future - in the next two, three, 10, 15 years, in our lifetimes and those of our children.” …“It’s not about the little piece of plastic,” he said. “It’s about thefuture of human connection.”
Michael Kruse can be reached at firstname.lastname@example.org or 352 848-1434.
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What is Digital? September 26, 2006Posted by healthyself in Binary, Binary Streams, Blogroll, Cell phone safety, Cordless Phones, Definitions, Digital, Electrical Pulses, Electromagnetic Field, Electromagnetic Interference, Electromagnetic pollution, Electromagnetic Spectrum, Electromagnetic waves, Electrosensitivity, Electrosmog, ELF, EMF Research, EMF's, EMR, Encoding, Environment, Exposure, Frequencies, Networks, Noise, Radio Waves, Radios, Signals, transmission, Wireless Phones.
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Digital – A method of encoding information using a binary code of 0s and 1s from electrical pulses. Because digital signals are made up only of binary streams, less information is needed to transmit a message. Digital encoding therefore increases the capacity of a given radio frequency. Furthermore, only digitized information can be transported through a noisy channel without degradation. Digital technology reproduces sound exactly, and can even filter out background and electronic “noise.” Even if corruption occurs, as long as the one zero patterns are recognizable, the original information content can be perfectly replicated at the receiving end. Most new wireless phones and networks use digital technology.