ionizing effect
111Occupational hygiene — Occupational (or industrial in the U.S.) hygiene is generally defined as the art and science dedicated to the anticipation, recognition, evaluation, communication and control of environmental stressors in, or arising from, the workplace that may… …
112Strömgren sphere — In theoretical astrophysics, a Strömgren sphere is the sphere of ionized hydrogen (H II) around a young star of the spectral classes O or B. Its counterpart in the real word are the H II regions, a type of an emission nebula, the most prominent… …
113Cash-Landrum incident — The Cash Landrum Incident was a reported Unidentified Flying Object sighting from the United States in 1980, which the witnesses insist was responsible for damage to their health. It is one of very few UFO cases to result in criminal court… …
114Downwinders — refers to individuals and communities who are exposed to radioactive contamination or nuclear fallout from atmospheric or underground nuclear weapons testing, and nuclear accidents. Currently, this article focuses on incidents in the United… …
115List of civilian radiation accidents — This article lists notable civilian accidents involving radioactive materials or involving ionizing radiation from artificial sources such as x ray tubes and particle accelerators. Accidents related to nuclear power that involve fissile materials …
116sievert — The SI unit of ionizing radiation effective dose, equal to the absorbed dose in gray, weighted for both the quality of radiation in question and the tissue response to that radiation. The unit is the joule per kilogram …
117particle accelerator — accelerator (def. 7). [1945 50] * * * Device that accelerates a beam of fast moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic… …
118therapeutics — /ther euh pyooh tiks/, n. (used with a sing. v.) the branch of medicine concerned with the remedial treatment of disease. [1665 75; see THERAPEUTIC, ICS] * * * Treatment and care to combat disease or alleviate pain or injury. Its tools include… …
119geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …
120Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
