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Related to the functioning of the organs of a living organism.קרא עוד >

Quantitative data processing based on the results of different studies investigating the same research problem and conducted using comparable research methodologies.קרא עוד >

The amount of work performed per unit of time.This expresses the rate of transfer of energy from one form to another.Its unit of measure is Watt (W).קרא עוד >

The quantity of work of a physical system per unit of time per volume (volume power density, measured in standard units of Watts per cubic meter W/m3), or per area (flux density, measured in standard units of W/m2).קרא עוד >

A tool for managing health and environmental risks, applied when there is a significant level of scientific uncertainty regarding the overall health or environmental effects of a chemical or physical factor, it may be interpreted in different ways and thus is not uniformly applied.It is a guiding principle in determining policy for health and environmental protection.קרא עוד >

Quantitative expression of the possibility that an event will occur. An impossible event carries a probability of '0' and an absolutely certain event carries a probability of '1'.קרא עוד >

A study in which the development rate of a disease is examined and compared between a population group (cohort) that is exposed to a risk factor (e.g., smokers) and a population group that is not exposed to the risk factor (e.g. non-smokers).

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Large biological molecule composed of a sequence of small units of amino-acids. Proteins constitute a significant component of living organisms, and play an important role in both the structure of the cell and tissues, as well as in the function of the cells and the various body systems, such as: antibodies in the immune system, hormones (e.g. insulin), and enzymes (catalysts) in chemical processes in the body.קרא עוד >

The transfer of energy by waves spreading through space or within any matter.קרא עוד >

An instrument, device or technological system that produces or may produce non-ionizing radiation during its operation.  Examples of radiation sources:  cordless phones, mobile phones, cellular base stations, broadcasting stations, power lines, transformer stations, etc.קרא עוד >

A segment of the electromagnetic spectrum with wavelengths longer than those of the infrared segment.  The range of RF, as defined by the International Telecommunications Union, is wide and ranges from 3 KHz to 300 GHz respectively. 

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Any attribute, characteristic or exposure of an individual that increases the likelihood of developing a disease or injury (source: WHO,קרא עוד >

The highest level of exposure allowed or recommended for any hazardous factor (radiation, chemical substance, etc.).  Its purpose is to safeguard against adverse health effects.  For most factors this threshold is a compromise, and does not imply certainty that there may be harmful effects above this level, or no harmful effects below it.קרא עוד >

A measure of the radiation absorbed by the human body. It is measured in units of Watts/kg.קרא עוד >

A semiconductor is a solid material that has intermediate electrical conductivity – between an insulator and a conductor.קרא עוד >

Relatively small wireless devices that constantly transmit digital data of users regarding the consumption of electricity, water, or gas.קרא עוד >

The electromagnetic radiation frequencies (or wavelengths) absorbed or emitted by an atom of a specific element. According to Niels Bohr's atomic theory, radiation is absorbed or emitted at frequencies that match the energy difference between two energy levels of the atom. The frequencies (or wavelengths) absorbed by an atom of a specific element comprise its absorption spectrum, and the frequencies (or wavelengths) emitted by an atom of a specific element comprise its emission spectrum.קרא עוד >

A process that assists in creating uniformity of objects in a given context or field and defines the activities required to create such uniformity.  With respect to non-ionizing radiation, standardization creates a system of coordination between the relevant bodies by means of regulations, guidelines, specifications, measurements, etc.   These measures constitute reference norms for the appropriate use of instruments, to ensure safety and safeguard public health and quality of the environment.  קרא עוד >

A physical or mental characteristic that may be part of the distinct features of a disease or group of diseases.קרא עוד >

Effects of non-ionizing radiation on the body or its components that are due to a topical increase in the temperature of the living organism.קרא עוד >

The capacity to maintain a fixed temperature.קרא עוד >

A cluster of cells in the body of a living animal or plant, having a common origin and similar structure, and performing a specific function in the organism.קרא עוד >

 A cluster of cells created by uncontrolled division of cells in the body.  Cells from the tumor are able to invade and spread to neighboring tissues, or to metastasize to distal organs.קרא עוד >

In Israel, an Operation Permit or Installation Permit issued by the Ministry of Environmental Protection may be issued for a specific type of radiation source.קרא עוד >

A segment of the electromagnetic spectrum in the range of wavelengths 10-400 nanometers (nm).  The frequencies of UV light are not visible to the human eye, and exposure to this radiation requires protective measures.  The effect of UV light on public health usually refers to the 100-400nm wavelength range, which is divided into 3 sub-segments:

UVA (315-400nm)

UVB (280-315nm)

UVC (100-280nm)

Ultraviolet radiation emanating from the sun and reaching the earth is mainly of the UVA type (95%), with a small amount of UVB (5%).  The remaining range is completely...קרא עוד >

A small segment of the electromagnetic spectrum in the range of 390-700 nanometers (nm), in the frequency range of 430 -790 Terahertz (THz). Visible light may be seen by the human eye and accounts for vision.קרא עוד >

The spread (or propagation) of a disturbance in matter or in a vacuum, in space and in time.  The wave is characterized by frequency, wavelength, propagation rate and amplitude.קרא עוד >

The distance between two successive peaks of a wave, measured in units of length, such as meter (m), centimeter (cm), millimeter (mm), micron (µm), nanometer (nm) and Ångstrom (Å).קרא עוד >

A wireless communications network (e.g. Wi-Fi) that uses radio waves to transmit information and data back and forth among different end-user devices (such as mobile phones, tablets or smart phones).  קרא עוד >

A branch of the United Nations Organization dealing with health.  Among its main roles:  acting as leader on the subject of world health, determining priorities for health research, setting norms and standards (international), elaborating policy, providing support for countries throughout the world, supervising and assessing health trends.קרא עוד >