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Any one of a group of diseases that occur when cells in the body become abnormal and have the potential to spread and establish growth in nearby tissues and other parts of the body (malignancy). (Source: GreenFacts )
The basic subunit of any living organism; the simplest unit that can exist as an independent living system. There are many different types of cells in complex organisms such as humans, each with specific characteristics. (Source: GreenFacts)
Electromagnetic fields (EMF) are a combination of invisible electric and magnetic fields of force. They occur both naturally and due to human activity. (Source: GreenFacts)
The electromagnetic spectrum is the entire range of wavelengths of all known electromagnetic radiations. It includes:
Gamma rays have the smallest wavelengths and highest frequencies known. They are high energy waves capable of travelling long distances through air and are the most penetrating waves.
X-rays have longer wavelengths than gamma rays but smaller wavelengths and therefore higher energy than ultraviolet radiation. They have been used in various applications in science and industry and are primarily used in medicine for instance in radiography. They are a form of ionizing radiation and as such can be dangerous. X-rays are emitted by electrons outside the nucleus, while gamma rays are emitted by the nucleus.
Ultraviolet (UV) radiation is defined as the portion of the electromagnetic spectrum between X-rays and visible light. More...
Visible light – also known as the visible spectrum – is the portion of the electromagnetic spectrum that human eyes can detect. It covers all colours from blue at 400 nm to red at 700 nm, with blue light having more energy than red light.
Infrared (IR) radiation – also referred to as thermal radiation – is the portion of the electromagnetic spectrum lying between visible light and microwaves. The most important natural source of infrared radiation is the sun.
Radio waves have long wavelengths, ranging from a few centimetres to many thousands of kilometres in length. They are used among other things for television, cell phone and radio communications. (Source: GreenFacts)
Frequency is the measurement of the number of times that a repeated event occurs per unit of time.
The frequency of wave-like patterns including sound, electromagnetic waves (such as radio or light), electrical signals, or other waves, expresses the number of cycles of the repetitive waveform per second.
In SI units, the result is measured in Hertz (Hz), named after the German physicist, Heinrich Rudolf Hertz. 1 Hz means one cycle (or wave) per second.
Frequency has an inverse relationship to the concept of wavelength (the distance between two peaks) such that the frequency is equal to the velocity divided by the wavelength. (Source: GreenFacts)
Leukaemia is a cancer that starts in blood-forming tissue such as the bone marrow, which makes blood cells (red blood cells that carry oxygen around the body, white blood cells that fight disease and infection, platelets that help to stop bleeding when it starts).
In people with leukaemia, the bone marrow produces large numbers of abnormal white blood cells and not enough normal red blood cells.
Leukaemia cases represent less than 4% of all cancer cases in adults but are the most common form of cancer in children.
There are different types of leukaemia (e.g. acute, chornic, myeloid and lymphoid leukaemia). (Source: GreenFacts )
A magnetic field is an invisible force field created by a magnet or as a consequence of the movement of electric charges (flow of electricity).
The magnitude (intensity) of a magnetic field is usually measured Tesla (T or in mT), but it can also be measured in Gauss (G).
The intensity of the field decreases with distance from the field source. (Source: GreenFacts)
A class of physical phenomena that include being able to attract iron.
Magnetism is associated with moving electricity, is exhibited by both magnets
and electric currents, and involves force ["magnetic"] fields.
(Source: CanCentral.com
Glossary
The Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR) was set up in 2004 by the European Commission to provide the Commission with unambiguous scientific advice on the safety of a series of issues requiring a comprehensive assessment of the risks, such as new technologies, medical devices, etc.
The SCENIHR advice is intended to enable risk managers to take the adequate and required actions in order to guarantee consumer safety or public health.
The SCENIHR addresses questions concerning emerging or newly-identified risks and on broad, complex or multi-disciplinary issues requiring a comprehensive assessment of risks to consumer safety or public health and related issues not covered by other Community risk- assessment bodies.
The Scientific Committee on Emerging and Newly Identified Health Risks is composed of a maximum of 13 members, but for any specific question may enlist the support of up to six associated members selected on the basis of their expertise. There is also a reserve list made up of candidates found suitable for a position in a Scientific Committee but not appointed. The members of the SCENIHR are appointed on the basis of their skills and experience in the fields in question, and consistent with this a geographical distribution that reflects the diversity of scientific problems and approaches in the European Union (EU). The experts' term of office is three years and is renewable for a maximum of three consecutive times. In agreement with the Commission, the Scientific Committees may turn to specialised external experts.
The SCENIHR complies with the principles of independence, transparency and
confidentiality. The members therefore make a declaration of commitment to act
in the public interest and a declaration of interests; requests for opinions,
agendas, minutes and opinions are published; work and publications are done with
regard to the need for commercial confidentiality.
(Source:
SCENIHR
pages
An abnormal mass of tissue resulting from uncontrolled and excessive cell division.
Tumours can be either benign (localised, without the invasion of other tissues) or malignant (showing progressive invasion of other tissues). (Source: GreenFacts)
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