- Industria: 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.
Watery proteinaceous portion of the blood that remains after clotting.
Industry:Biology; Chemistry
Word groups identifying potential health or environmental hazards required under CPL Directives (European Community); may be incorporated into Safety Data Sheets.
Industry:Biology; Chemistry
Ratio of predicted exposure concentration to predicted no effect concentration.
Industry:Biology; Chemistry
Ratio of the measure of the effects (e.g., LD50, LC50, NOEC) to the estimated exposure.
Note: It is the reciprocal of a risk quotient or hazard quotient.
Industry:Biology; Chemistry
Ratio of the number of deaths observed in the study group or population to the number of deaths that would be expected if the study population had the same specific rates as the standard population, multiplied by 100.
Note: This ratio is usually expressed as a percentage.
Industry:Biology; Chemistry
Ratio of the number of deaths observed in the study group or population to the number of deaths that would be expected if the study population had the same specific rates as the standard population, multiplied by 100.
Note: This ratio is usually expressed as a percentage.
Industry:Biology; Chemistry
Ratio of the toxicity of a chemical to that of another structurally related chemical (or index compound) chosen as a reference.
Industry:Biology; Chemistry
Ratio of the toxicity of a chemical to that of another structurally related chemical (or index compound) chosen as a reference. Factor used to estimate the toxicity of a complex mixture, commonly a mixture of chlorinated dibenzo-p-dioxins (oxanthrenes), furans, and biphenyls: in this case, TEF is based on relative toxicity to 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-tetrachlorooxanthrene) for which the f = 1.
Industry:Biology; Chemistry
Reciprocal exchange of chromatin between two replicated chromosomes that remain attached to each other until anaphase of mitosis; used as a measure of mutagenicity of substances that produce this effect.
Industry:Biology; Chemistry
