Health Risks of Radon and Other Internally Deposited Alpha-Emitters BEIR IV (1988) / Chapter Skim
Currently Skimming:
Glossary
Glossary
Pages 577-586
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 577... ...
Background radiation. Radiation arising from radioactive material other than that under consideration; background radiation due to cosmic rays and natural radioactivity is always present; there may also be background radiation due to the presence of radioactive substances in building material.
|
From page 578... ...
The cessation of migratory activity and sometimes other functions, including mitosis, when adjacent cells establish firm contact. Con proportional hazards model.
|
From page 579... ...
Dose equivalent. A quantity that expresses, for the purposes of radiation protection and control, the assumed effectiveness of dose on a common scale for all kinds of ionizing radiation.
|
From page 580... ...
Time required for the body to eliminate half of an administered dose of any substance by regular processes of elimination; it is approximately the same for both stable en c! radioactive isotopes of a particular element.
|
From page 581... ...
in which independent risk factors interact so that the combined risk is the product of the relative risks due to each factor alone. Neoplasms.
|
From page 582... ...
A linear energy transfer dependent factor by which absorbed doses are multiplied to obtain (for radiationprotection purposes) a quantity which corresponds more closely to the degree of biological effect produced by x or low-energy gamma rays.
|
From page 583... ...
It is numerically equal to the inverse of the ratio of absorbed doses of the two radiations required to produce equal biological effect. The reference radiation is often 200 kV x rays.
|
From page 584... ...
Describes random events leading to effects whose probability of occurrence in an exposed population (rather than severity in an affected individual) is a direct function of dose; these effects are commonly regarded as having no threshold; hereditary effects are regarded as being stochastic; some somatic effects, especially carcinogenesis, are regarded as being stochastic.
|
From page 585... ...
Tissue culture cells changed in vitro from growing in an orderly pattern and exhibiting contact inhibition to growing in a pattern more like that of cancer cells, resulting in the loss of contact inhibition. Transiocation.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.