Electromagnetic wave- a wave produced by the acceleration of an electric charge and propagated by the periodic variation of intensities of, usually, perpendicular electric and magnetic fields.
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The history of electromagnetic field EMF application and research has been mired in secrecy and suspicion, none more so than early government-sponsored projects whose activities were never clearly described.
Before we begin to construct a working model for EMF usage in medicine and health, we will review some important fundamental terms and parameters. A magnetic field MF is a magnetic force that extends out from a magnet and can be either static or dynamic.
These MFs are produced by electric currents and specifically as a result of electron movement in 1 DC or 2 AC directions. In AC current, the electricity is moving back and forth and, as a result, produces a dynamic magnetic field.
The greater the current, the greater the magnetic field. An EMF by definition refers to a dynamic or fluctuating MF and contains both an electric and a magnetic field.
A specification that often is referenced is the rate or frequency of electromagnetic energy, which refers to the number of fluctuations and is expressed in hertz or cycles per second.
Another important parameter used to describe or characterize an EMF is the wavelength, and because EMFs are typically conceptualized as waves with peaks and troughs, the wavelength is the distance between crests of a wave. A DC current has a zero frequency in contrast to gamma and cosmic rays, which by comparison, have a very high frequency.
All EMFs are capable of traveling through space at a great distance and can exert effects from afar. These fields carry energy and can be described either in terms of particles photons or waves, demonstrating characteristics of both. It is important to note that photons are packets of energy that can vary in terms of the amount of energy they carry.
The energy level of a photon is related to the frequency it carries, with higher frequency photons having higher energy levels.
The Figure depicts how the electromagnetic spectrum and visible light forms a small portion of the total spectrum. Medical Biophysics Another important distinction we should make is that of endogenous fields produced in the body versus exogenous fields produced outside of the body.
These exogenous fields can be further subdivided into natural fields earths geomagnetic field versus artificial or man-made fields, such as transformers, electricity lines, medical devices, appliances, and radio transmitters.
In medical biophysics, an ionizing EMF gamma or x-rays refers to radiation energy strong enough to disrupt the cell nucleus and dislodge electrons from a molecule.
Ionization has been described in a continuum of strength from very strong to very weak. High-energy high frequency gamma and x-rays have high ionizing potential, whereas visible light radiation has weak ionizing capabilities.
Various types of radiation exposure are of concern, including acute short duration exposure to high-energy fields, which have been extensively studied.
However, just as or possibly more important are the more prolonged longer duration exposures to non- or weak ionizing radiation found in common household, work, and recreational applications.
Prolonged exposure to what is generally considered or classified as, nonionizing radiation in the low frequency rangeHzto extremely low frequency ELF; Hz range, is an important question that we will consider. Paradoxical Responses Although it has been known that prolonged exposures to strongly ionizing EMFs can cause significant damage in biological tissues, recent epidemiologic studies have implicated long-term exposures to low-frequency, oscillating, nonionizing, exogenous EMFs—such as those emitted by power lines—as having health hazards.
At the same time, there have been discoveries through research that also suggest that ELF radiation can have therapeutic healing effects in tissue. The configuration process has had a logical starting point, that is, observe what endogenous tissue electrical currents presently look like.
The exploration of this phenomenon could have great diagnostic and therapeutic value. It has been proposed that alterations in the endogenous EMF of cells and tissue may lead to disease, with restoration of correct EMFs leading to tissue healing.
Furthermore, because all living matter emits some level of radiation via our endogenous EMFs, this might help explain the positive effects of many forms of therapies from positive imagery and biofeedback to acupuncture and polarity work.
It is difficult to imagine a historically more therapeutically important drug than penicillin in terms of the number of lives it has saved and the morbidity spared by its use.
Despite this unusual sensitivity to the drug, it continues to be an important medication with well-defined benefits. In the same manner, a similar phenomenon exists regarding electric or electromagnetic radiation. There are probably susceptible individuals in the population who react adversely to electromagnetic radiation within certain frequency ranges based on their unique endogenous electromagnetic profile.
This susceptibility factor will be discussed in a later section. An example of the paradoxical effect might be the case of melatonin, which is secreted by the pineal gland and thought to regulate biorhythms. Melatonin is known to be oncostatic, stopping certain cancer growth.
Low levels of pulsed electro-magnetic field PEMF application has been demonstrated to suppress melatonin, thus suppressing an anti-cancer effect and interrupting circadian functions such as sleep.
A natural area for study would be to identify how altering the electromagnetic dosage or configuration might stimulate melatonin production, thereby ameliorating sleep dysfunction or the jet lag experience.
Workshop on Alternative Medicine. Non invasive magnetic stimulation of human motor cortex. A double blind trial of pulsed electro-magnetic fields for delayed union of tibial fractures.Gamma rays are used to kill cancerous cells, which actually assures the fact that gamma rays are an advantage to medicine, but, at the same time could be very harmful indeed.
Examples include gamma rays, rays, ultraviolet waves, visible light, infrared waves, microwaves, and radio waves. At latitude, the situation when centre is expected to raise the level of the mud when no one to you and your evolution will not be afraid to report on the company.
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Technetiumm is a metastable nuclear isomer of technetium (itself an isotope of technetium), symbolized as 99m Tc, that is used in tens of millions of medical diagnostic procedures annually, making it the most commonly used medical radioisotope..
Technetiumm is used as a radioactive tracer and can be detected in the body by medical equipment (gamma . Nuclear technology is technology that involves the nuclear reactions of atomic nuclei. Among the notable nuclear technologies are nuclear reactors, nuclear medicine and nuclear weapons.
It is also used, among other things, in smoke detectors and gun sights. Sample Text: What is a radioisotope Radioisotopes are radioactive isotopes of an element. An isotope is a different type of the same element, which just varies as they contain the same number of protons in their atomic nuclei but have a different number of neutrons.