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This is a list of radioactive nuclides (sometimes also called isotopes), ordered by half-life from shortest to longest, in seconds, minutes, hours, days and years. Current methods make it difficult to measure half-lives between approximately 10 −19 and 10 −10 seconds.
In this situation it is generally uncommon to talk about half-life in the first place, but sometimes people will describe the decay in terms of its "first half-life", "second half-life", etc., where the first half-life is defined as the time required for decay from the initial value to 50%, the second half-life is from 50% to 25%, and so on.
Absorption half-life 1 h, elimination half-life 12 h. Biological half-life ( elimination half-life , pharmacological half-life ) is the time taken for concentration of a biological substance (such as a medication ) to decrease from its maximum concentration ( C max ) to half of C max in the blood plasma .
Alternatively, since the radioactive decay contributes to the "physical (i.e. radioactive)" half-life, while the metabolic elimination processes determines the "biological" half-life of the radionuclide, the two act as parallel paths for elimination of the radioactivity, the effective half-life could also be represented by the formula: [1] [2]
Half Life (2001); Halflife, an EP by Lacuna Coil and the title track; Half-Life E.P., an EP by Local H "Half Life", a song by 10 Years from The Autumn Effect "Half Life", a song by Come from Near-Life Experience
Decay is played in a split screen mode, as seen here.. As is the case with the other games in the Half-Life series, Decay is a first-person shooter.Like the original title it is based on, Decay requires players to engage in combat with hostile non-player characters and complete various puzzle solving tasks to advance through the game.
Works based on Half-Life (series) (1 C, 5 P) Pages in category "Half-Life (series)" The following 9 pages are in this category, out of 9 total.
More than 100 pages use this file. The following list shows the first 100 pages that use this file only. A full list is available.. Actinide; Atom; Island of stability; Isotone