- 産業: Library & information science
- Number of terms: 152252
- Number of blossaries: 0
- Company Profile:
The National Library of Medicine (NLM), on the campus of the National Institutes of Health in Bethesda, Maryland, is the world's largest medical library. The Library collects materials and provides information and research services in all areas of biomedicine and health care.
Any subjective evidence of a disease or an effect induced by a substance as perceived by the affected subject.
Industry:Biology; Chemistry
Any undesirable solid, liquid or gaseous matter in a solid, liquid or gaseous environmental medium.
Note 1: ‘Undesirability’ is often concentration-dependent, low concentrations of most substances being tolerable or even essential in many cases.
Note 2: A primary pollutant is one emitted into the atmosphere, water, sediments or soil from an identifiable source.
Note 3: A secondary pollutant is a pollutant formed by chemical reaction in the atmosphere, water, sediments, or soil.
Industry:Biology; Chemistry
Anything that is discarded deliberately or otherwise disposed of on the assumption that it is of no further use to the primary user.
Industry:Biology; Chemistry
Anything, such as a medicine or therapy, that relieves pain, cures disease, or corrects a disorder.
Industry:Biology; Chemistry
Apparent (hypothetical) volume of fluid required to contain the total amount of a substance in the body at the same concentration as that present in the plasma assuming equilibrium has been attained.
Industry:Biology; Chemistry
Apparent adaptation of an organism to changing conditions of the environment (especially chemical) associated with stresses in biochemical systems that exceed the limits of normal (homeostatic) mechanisms.
Note: Essentially there is a temporary concealed pathology that later on can be manifested in the form of explicit pathological changes sometimes referred to as ‘decompensation’.
Industry:Biology; Chemistry
Applying risk assessment to a specific target population of known size, giving as the end product a quantitative statement about the number of people likely to be affected in a particular population.
Industry:Biology; Chemistry
Approach to risk management that can be applied in circumstances of scientific uncertainty, reflecting a perceived need to take action in the face of a potentially serious risk without waiting for definitive results of scientific research.
Note: The 1992 Rio Declaration on Environment and Development says: “In order to protect the environment, the precautionary approach shall be widely applied by states according to their capabilities. Where there are threats of serious or irreversible damage, lack of full scientific certainty shall not be used as a reason for postponing cost-effective measures to prevent environmental degradation.”
Industry:Biology; Chemistry
Arbitrary classification of substances that have passed certain specified screening tests for ultimate biodegradability; these tests are so stringent that such compounds will be rapidly and completely biodegraded in a wide variety of aerobic environments.
Industry:Biology; Chemistry
Area between and including two reference limits, for example the percentiles 2.5 and 97.5.
Industry:Biology; Chemistry
