Merge Bioelectromagnetics date June 2010 Bioelectromagnetism sometimes equated with bioelectricity refers to the electrical, magnetic or electromagnetic field s produced by living cell biology cell s, biological tissue tissue s or organism s. Examples include the cell membrane potential and the electric current s that flow in nerve s and muscle s, as a result of action potential s. Bioelectromagnetism is somewhat similar to bioelectromagnetics , which deals with the effect on life from external electromagnetism yet such an effect also falls under the definition of bioelectromagnetism . ref Jaakko Malmivuo, Robert Plonsey, http www.bem.fi book 01 01.htm Bioelectromagnetism Principles and Applications of Bioelectric and Biomagnetic Fields. Oxford University Press. New York, Oxford. 1995. Introduction ... or signal transduction trigger internal changes , and to signal one another. Bioelectromagnetism is the electric ... the phenomenon of electromagnetism . Bioelectromagnetism is studied primarily through the techniques ... muscle activation as resulting from an electrical fluid or substance in the nerve s. Bioelectromagnetism .... Bioelectromagnetism is associated with biorhythm s and chronobiology . Biofeedback ... characteristics and as a technique for teaching the control of bioelectric functions. Bioelectromagnetism ... ref AT&T Samsung Captivate phone ref . Bioelectromagnetism involves the interaction of ion s. There are multiple categories of Bioelectromagnetism such as brainwaves, myoelectricity It is in fact Myolectricity ... References Reflist External links Information http www.bem.fi book 01 01.htm A brief history of Bioelectromagnetism ... index.htm Bioelectromagnetism , Principles and Applications of Bioelectric and Biomagnetic Fields . Oxford University Press, New York Oxford. 1995. http www.ijbem.org International Journal of Bioelectromagnetism http www.isbem.org International Society for Bioelectromagnetism http web.archive.org ... Bioelectromagnetism Research Group http www.bem.fi Institute of Bioelectromagnetism http www.vanderbilt.edu ... more details
Unreferenced stub auto yes date December 2009 Main Electrophysiology For signals in ethology , see signal information theory . In physiology , a signal or biopotential is an electric quantity voltage or current or field strength , caused by chemical reactions of charged ions . Another use of the term lies in describing the transfer of information between and within cells, as in signal transduction . See also Action potential Bioelectromagnetism Signal transduction DEFAULTSORT Signal Physiology Category Electrophysiology Biology stub ar pt Sinal biologia simple Signal biology ... more details
Orphan date February 2009 Gregor S. Gustafson born March 24, 1966 is a United States U.S. scientist and human bioenergy ref http butler.cc.tut.fi malmivuo bem bembook 01 01.htm 1. Introduction Bot generated title ref researcher. Mr. Gustafson has developed a Bioelectromagnetism bio electric recording instrument Bio Environmental Magnetic Analyzer to discover and measure frequency patterns existing in physiological, emotional and consciousness based conditions and diseases. ref http www.theiasi.org whatis.php What is Structural Integration? Bot generated title ref Mr. Gustafson is co author of Galileo and Gustafson Heroes of Scientific Truth G. Gustafson, Crystal Jones Galileo and Gustafson Heroes of Scientific Truth , published in 2007. See also Biorhythm Signal biology University of British Columbia Structural Integration References Reflist Persondata Metadata see Wikipedia Persondata . NAME Gustafson, Gregor ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH March 24, 1966 PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Gustafson, Gregor Category 1966 births Category Living people Category American scientists Category University of British Columbia alumni Category American atheists Category American environmentalists ... more details
The medullary command nucleus MCN , also called the pacemaker nucleus , is a groups of nerve cells found in the bodies of weakly electric fish . It controls the function of electrocytes by regulating the frequency of Bioelectromagnetism electrical impulses . Signals originating in the MCN are transmitted to electrocytes, where changes in ion concentration cause electrical charges to be generated. The nucleus both sends and receives signals, thereby acing as a regulator and central processor for the electro sensors in the fish s body. Inputs into the MCN originate in the mesencephalic precommand nucleus, thalamic dorsal posterior nucleus, and toral ventroposterior nucleus. All of these nuclei have dense projections into the MCN, with the exception of theToral Ventroposterior nucleus, which contain only a ventral edge projection. See also Electric organ Electric fish External links cite web url http www.jneurosci.org cgi content abstract 23 31 10128?ck nck title Single Unit Activity Patterns in Nuclei That Control the Electromotor Command Nucleus during Spontaneous Electric Signal Production in the Mormyrid Brienomyrus brachyistius accessdate 2007 11 17 author Bruce A. Carlson date 2003 11 05 publisher The Journal of Neuroscience Category Electric fish ... more details
This is a list of topics in biophysics and related fields. General Biomathematics Theoretical biophysics Biomathematics Mathematical biophysics Systems biology Medical biophysics Agrophysics Origin of Life Molecular biophysics Molecular biophysics Biological membrane s Cell membrane s Biological thermodynamics Bioenergetics Ion channel Channels , Transmembrane receptor receptors and Membrane transport protein transporter s Enzyme kinetics Molecular motors Phospholipids Protein s Biofilms Supramolecular assemblies Nucleic acid s Cellular biophysics Cellular biology Cell division Cell migration Cell signalling Dynamical system s Electrophysiology Signals biology Signaling Biochemical systems theory Metabolic control analysis Techniques used in biophysics Biophysical techniques Atomic force microscopy Biophotonics Biosensor and Bioelectromagnetism Bioelectronics Calcium imaging Calorimetry Circular Dichroism Cryobiology Dual polarisation interferometry Electrophysiology Fluorescence Microscopy Neuroimaging Neutron spin echo spectroscopy Patch clamp ing NMR Spectroscopy Nuclear Magnetic Resonance Spectroscopy Spectroscopy , imaging , etc. X ray crystallography Miscellaneous Animal locomotion Bioacoustics Biomechanics Biomineralisation Bionics Evolution Evolutionary algorithms Evolutionary computing Evolutionary theory Gravitational biology Mathematical biology Morphogenesis Muscle and contractility Negentropy Neural encoding Radiobiology Sensory systems Systems neuroscience Tensegrity Theoretical biology div Category Biophysics ... more details
For the scientific journal Bioelectromagnetics journal Merge Bioelectromagnetism date June 2010 Citation style date February 2010 Copyedit date February 2010 POV date February 2010 Bioelectromagnetics is the study of how electromagnetic fields interact with and influence biological processes almost the same as radiobiology of non ionizing radiation . Citation needed date February 2010 Common areas of investigation include the mechanism of animal migration and navigation using the geomagnetic field, studying the potential effects of man made sources of electromagnetic fields, such as those produced by the electricity distribution power distribution system and mobile phones , and developing novel therapies to treat various conditions. The term Bioelectromagnetics is somewhat similar to bioelectromagnetism , which deals with the ability of living cells, tissues or organisms to produce electrical fields, but also includes the response of excitable cells to electric and magnetic field stimulation . ref Jaakko Malmivuo, Robert Plonsey, Bioelectromagnetism Principles and Applications of Bioelectric and Biomagnetic Fields. Oxford University Press. New York, Oxford. 1995 ref History The history of bioelectromagnetic medicine has been marked by confusion, controversy, and a profusion of quack devices. ref name Rosch Rosch, P. & Marko S. Markov. http books.google.ca books?id nl9f1vWn5lQC&pg PA77&lpg PA77&dq bio electromagnetic&source bl&ots MI3OhaFA6S&sig ZQSVeZeU2Hpo78Tj5Tgxx4JHORw&hl en&ei byEtSqD0IIuOMq7YweEJ&sa X&oi book result&ct result&resnum 3 PPA77,M1 Bioelectromagnetic Medicine ... this is done deliberately in order to treat depression such as in ECT. See also Bioelectromagnetism ... International Society for Bioelectromagnetism ISBEM Books Robert O. Becker and Andrew A. Marino ... 87477 536 1 Jaakko Malmivuo and Robert Plonsey, http www.bem.fi book index.htm Bioelectromagnetism ... International Journal of Bioelectromagnetism , ISBEM, 1999 present, ISSN 1456 7865 BioMagnetic Research ... more details
Hosaka Cohen Transformation also called H C transformation is a mathematical method of converting a particular two dimensional scalar magnetic field map to a particular two dimensional vector map. The scalar field map is of the component of magnetic field which is normal to a two dimensional surface of a volume conductor this volume conductor contains the currents producing the magnetic field. The resulting vector map, sometimes called an arrowmap roughly mimics those currents under the surface which are parallel to the surface, which produced the field. Therefore, the purpose in performing the transformation is to allow a rough visualization of the underlying, parallel currents. The transformation was proposed by Cohen and Hosaka of the Biomagnetism group at MIT, ref Cohen, D., Hosaka, H. 1976 Part II Magnetic field produced by a current dipole. Journal of Electrocardiology Suppl. on magnetocardiography 9 409 417. ref then was used by Hosaka and Cohen to visualize the current sources of the magnetocardiogram. ref Hosaka, H., Cohen, D. 1976 Part IV Visual determination of generators of the magnetocardiogram. Journal of Electrocardiology Suppl. on magnetocardiography 9 426 432. ref Each arrow is defined as Image Hosaka Cohen transformation.jpg center where z of the local x, y, z coordinate system is normal to the volume conductor surface, x circumflex and y circumflex are unit vectors, and B sub z sub is the normal component of magnetic field. This is a form of 2 dimensional gradient of the scalar quantity B sub z sub and is rotated by 90 degrees from the conventional gradient. Almost any scalar field, magnetic or otherwise, can be displayed in this way, if desired, as an aid to the eye, to help see the underlying sources of the field. Notes references Further reading Koch, H. 2004 Recent advances in magnetocardiography. Journal of Electrocardiology 37 117 122. See also Biomagnetism Bioelectromagnetism David Cohen physicist Electrophysiology Magnetic Field Magn ... more details
Biomagnetism is the phenomenon of magnetic fields produced by living organisms it is a subset of bioelectromagnetism . The study of the biological effects of magnetic fields is magnetobiology . The word biomagnetism has also been used loosely to include magnetobiology, further encompassing almost any combination of the words magnetism and biology. The origin of the word biomagnetism is unclear, but seems to have appeared several hundred years ago, linked to the expression animal magnetism. The present scientific definition took form in the 1970s, when an increasing number of researchers began to measure the magnetic fields produced by the human body. The first valid measurement was actually made in 1963, ref Baule G.M, McFee R. Detection of the magnetic field of the heart. American Heart Journal 1963 66 95 6. ref but the field began to expand only after a low noise technique was developed in 1970. ref Cohen D, Edelsack EA, Zimmerman JE. Magnetocardiograms taken inside a shielded room with a superconducting point contact magnetometer. Applied Physics Letters 1970 16 7 278 80 ref Today the community of biomagnetic researchers does not have a formal organization, but international conferences are held every two years, with about 600 attendees. Most conference activity centers around the MEG magnetoencephalogram , the measurement of the magnetic field of the brain. Prominent Researchers David Cohen physicist David Cohen John Wikswo Samuel Williamson Conferences Biomag2010, the 18th International Conference on Biomagnetism, Dubrovnik, Croatia from Sunday, March 28 April 1, 2010. Biomag2008, the 16th International Conference on Biomagnetism, Sapporo, Japan, August 25 29, 2008 Biomag2006, the 15th International Conference on Biomagnetism, Vancouver, BC, Canada, August 21 25, 2006 Biomag2004, the 14th International Conference on Biomagnetism, Boston, Massachusetts, USA, August 8 12, 2004 Biomag2002, the 13th International Conference on Biomagnetism, Jena, Germany, August 10 ... more details
Refimprove date October 2007 Doctorwhorace image File Rutan scout.jpg 200px name Rutans type Shape changing protean lifeforms affiliation Rutan Host planet List of Doctor Who planets R Ruta 3 start Horror of Fang Rock The Rutan Host , or Rutans, are a fiction al Extraterrestrial life in popular culture extraterrestrial race from the United Kingdom British science fiction television series Doctor Who . They have been at war with the Sontaran Sontaran Empire for more than 50,000 years, ref cite episode title The Poison Sky series Doctor Who credits Writer Helen Raynor , Director Douglas Mackinnon , Producer Susie Liggat network BBC station BBC One city London airdate 2008 05 03 ref and this war dominates both cultures to the exclusion of all else. The Rutans only appeared on television in the serial Horror of Fang Rock , in which a single Rutan is encountered, though they are mentioned in some serials featuring Sontarans The Time Warrior , The Sontaran Experiment , The Two Doctors , The Poison Sky and The Last Sontaran and Enemy of the Bane episodes of Doctor Who spin off The Sarah Jane Adventures . Characteristics In their natural forms, Rutans resemble large green jellyfish , glowing blobs of biomatter with long ropy tentacles. They are amphibious and can cling to sheer vertical surfaces, with considerable mobility out of the water despite their shape. Rutans can also generate lethal bioelectromagnetism bioelectrical shocks, and seem to be able to absorb electrical energy directly for sustenance. They reproduce by a process similar to binary fission . Rutans can speak, although the exact mechanism by which this works is unknown as no mouth has been observed on their body. The Rutan observed in Horror of Fang Rock spoke with a harsh, tinny male voice. Rutans never refer to themselves as individuals, preferring the first person plurals we , us , and our s . Rutans are able to operate independently, and, like the Sontarans, sometimes dispatch scout units consisting of ... more details
Infobox Book name The Body Electric Electromagnetism and the Foundation of Life title orig translator image image caption author Robert O. Becker and Gary Selden illustrator cover artist country language English series subject genre publisher Harper Paperbacks release date August 5, 1998 paperback english release date media type Paperback pages 368 isbn 0 688 06971 1 dewey 591.19 127 19 congress QP82.2.E43 B4 1985 oclc 14273458 preceded by followed by This article is about a book on bioelectromagnetism . A book on Kirlian photography by Thelma Moss has a similar title. See Body Electric for further meanings. The Body Electric Electromagnetism and the Foundation of Life is a book by Robert O. Becker and Gary Selden in which Becker, an orthopedic surgeon at the time working for the Veterans Administration , describes his research into our bioelectric selves . ref cite web last Howe first LM title British Cell Phone Safety Alert and An Interview with Robert O. Becker, M. D. publisher Council on Wireless Technology Impacts date 2000 05 15 url http www.energyfields.org science becker.html accessdate 2009 02 09 Dead link date October 2010 bot H3llBot ref A PubMed search gives 91 listings for Becker RO in peer reviewed scientific journals, 33 as first author including several in the journals Science journal Science and Nature journal Nature . The Body Electric is largely a summary of this work. Becker set out to examine why normal bones heal, and then explore the reasons why bones fail to heal properly. His experiments were mostly with salamander s and frog s, and his scope was widened to studying regeneration after lesion s such as limb amputation . He suspected that electric field s played an important role for controlling the regeneration process, and therefore mapped the electric potential s at various body parts during the regeneration. This mapping showed that the central parts of the body normally was positive, and the limbs negative. When a limb of a salamander or ... more details
Magnetobiology is the study of biological effects of mainly weak static and low frequency magnetic fields, which do not cause heating of tissues. Magnetobiological effects have unique features that obviously distinguish them from thermal effects often they are observed for alternating magnetic fields just in separate frequency and amplitude intervals. Also, they are dependent of simultaneously present static magnetic or electric fields and their polarization. Magnetobiology is a subset of bioelectromagnetics . Bioelectromagnetism and biomagnetism are the study of the production of electromagnetic and magnetic fields by biological organisms. The sensing of magnetic fields by organisms is known as magnetoreception or magnetoception . Biological effects of weak low frequency magnetic fields, less than about 0.1 mT and 100 Hz correspondingly, constitutes a physics problem. The effects look paradoxical, for the energy quantum of these electromagnetic fields is by many orders of value less than the energy scale of an elementary chemical act. On the other hand, the field intensity is not enough to cause any appreciable heating of biological tissues or irritate nerves by the induced electric currents. A bright example of magnetobiological effects is the magnetic navigation by migrant animals. It is established that some animals are able to detect small variations of the Earth s magnetic field geomagnetic field on the order of tens of nanoteslas to find their seasonal habitats. Reproducibility The results of magnetobiological experiments are poorly reproducible. 10 20 of publications report failed attempts to observe magnetobiological effects. In the majority of experiments, success depended on a rare happy coincidence of suitable electromagnetic and physiological conditions. Many of the experiments await confirmation by independent studies. Safety standards Image EMsafetyStandards.png thumb 466px right Safe levels of the EM exposures developed by different national and inte ... more details
Radiobiology or radiation biology is the interdisciplinary field of science that studies the biological effects of ionizing radiation ionizing and non ionizing radiation non ionizing radiation of the whole electromagnetic spectrum , including gamma rays , x rays , ultraviolet radiation , visible light , microwave s, radio wave , low frequency radiation such as used in alternating current alternate electric transmission , ultrasound thermal radiation heat , and related modalities. It is a subset of biophysics . Areas of interest The interactions between organisms and electromagnetic fields EMF and ionizing radiation can be studied in a number of ways radiation Radiation physics Radiation chemistry Molecular biology molecular and cell biology Molecular genetics Cell death and apoptosis Dose modifying agents Protection and repair mechanisms Tissue responses to radiation Radio adaptation of living organisms High and low level electromagnetic radiation and health Specific absorption rate s of organisms Radiation poisoning Radiation oncology radiation therapy in cancer Bioelectromagnetics Electric field and Magnetic field their general nature. Electrophysiology the scientific study of the electrical properties of biological cells and tissues. Biomagnetism the magnetic properties of living systems see, for example, the research of David Cohen physicist David Cohen using SQUID imaging and Magnetobiology the study of effect of magnets upon living systems. See also Electromagnetic radiation and health Bioelectromagnetism the electromagnetic properties of living systems and Bioelectromagnetics the study of the effect of electromagnetic fields on living systems. Electrotherapy Radiation therapy Electroconvulsive therapy Transcranial magnetic stimulation a powerful electrical current produces a transient, spatially focussed magnetic field that can penetrate the scalp and skull of a subject and induce electrical activity in the neurons on the surface of the brain. Magnetic resona ... more details
are tied in to his own Bioelectromagnetism bioelectric energy levels. In the episode Aftershock, in the 1st ... by Gear Static Shock Richie , Static s greater Bioelectromagnetism bioelectric field shields ... more details
Encyclopedia
top
