「Half-life」の版間の差分
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===Glossary of "Life (9th ed.)" by [[Sadava_Hillis_Heller_Berenbaum_2011|Sadava et al. (2011)]]=== | ===Glossary of "Life (9th ed.)" by [[Sadava_Hillis_Heller_Berenbaum_2011|Sadava et al. (2011)]]=== | ||
*The time required for half of a sample of a radioactive isotope to decay to its stable, nonradioactive form, or for a drug or other substance to reach half its initial dosage. | *The time required for half of a sample of a radioactive isotope to decay to its stable, nonradioactive form, or for a drug or other substance to reach half its initial dosage. | ||
| + | ===Glossary of "Environmental Science: Earth as a Living Planet (2nd ed.)" by [[Botkin_Keller_1998|Botkin & Keller (1998)]]=== | ||
| + | *The time required for half a substance to disappear; the average time required for one-half of a radioisotope to be transformed to some other isotope; the time required for one-half of a toxic chemical to be converted to some other form. | ||
==文献（引用）== | ==文献（引用）== | ||
| + | *[[Botkin_Keller_1998|Botkin, D. B. & Keller, E. A. 1998. Environmental Science: Earth as a Living Planet, 2nd ed. -xxxxii + 649 pp. John Wiley & Sons, Inc., New York.]] | ||
*[[Sadava_Hillis_Heller_Berenbaum_2011|Sadava, D., Hillis, D. M., Heller, H. C. & Berenbaum, M. R. 2011. Life: The Science of Biology, 9th ed. -xliv + 1266 pp. Sinauer Associates, Inc., Sunderland.]] | *[[Sadava_Hillis_Heller_Berenbaum_2011|Sadava, D., Hillis, D. M., Heller, H. C. & Berenbaum, M. R. 2011. Life: The Science of Biology, 9th ed. -xliv + 1266 pp. Sinauer Associates, Inc., Sunderland.]] | ||
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2019年9月25日 (水) 20:34時点における最新版
half-life
- 半減期（日本語）
- (Español)
Definition
Glossary of "Life (9th ed.)" by Sadava et al. (2011)
- The time required for half of a sample of a radioactive isotope to decay to its stable, nonradioactive form, or for a drug or other substance to reach half its initial dosage.
Glossary of "Environmental Science: Earth as a Living Planet (2nd ed.)" by Botkin & Keller (1998)
- The time required for half a substance to disappear; the average time required for one-half of a radioisotope to be transformed to some other isotope; the time required for one-half of a toxic chemical to be converted to some other form.
文献（引用）
- Botkin, D. B. & Keller, E. A. 1998. Environmental Science: Earth as a Living Planet, 2nd ed. -xxxxii + 649 pp. John Wiley & Sons, Inc., New York.
- Sadava, D., Hillis, D. M., Heller, H. C. & Berenbaum, M. R. 2011. Life: The Science of Biology, 9th ed. -xliv + 1266 pp. Sinauer Associates, Inc., Sunderland.
