- 産業: Library & information science
- Number of terms: 152252
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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.
Association between dose and the resulting magnitude of a continuously graded change, either in an individual or in a population.
Industry:Biology; Chemistry
At constant temperature and pressure, the ratio of the partial pressure of a gas above a liquid to its solubility in the liquid and therefore a measure of its partition between the gas phase and the solute phase.
Note 1: The solubility may be expressed in any convenient units, such as amount fraction, molality or amount (substance) concentration. The exact definition used should always be given.
Note 2: Rigorously, the Henry’s law constant is the limiting value at zero partial pressure.
Industry:Biology; Chemistry
Attachment of the fertilized ovum (blastocyst) to the endometrium and its subsequent embedding in the compact layer, occurring 6 or 7 days after fertilization of the ovum.
Industry:Biology; Chemistry
Attribute of a substance that describes the length of time that the substance remains in a particular environment before it is physically removed or chemically or biologically transformed.
Industry:Biology; Chemistry
Bacterium, plant or animal whose deoxyribonucleic acid has been deliberately altered.
Industry:Biology; Chemistry
Benefit at low dose of a substance that is harmful at a higher dose.
Industry:Biology; Chemistry
Biological catalyst: a protein, nucleic acid or a conjugate of a protein with another compound (coenzyme).
Industry:Biology; Chemistry
Biological change that comes and goes at intervals.
Industry:Biology; Chemistry
Biotransformation and, in some cases, elimination of a substance in the liver after absorption from the intestine and before it reaches the systemic circulation.
Industry:Biology; Chemistry
