References in periodicals archive? Because of the shorterbiological halflifeof BNP compared with NTproBNP (6), we hypothesized that BNP would show a faster response to hemodynamic improvement during intravenous levosimendan therapy. Time course of B-type natriuretic peptide (BNP) and N-terminal proBNP...
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Half-Life, stylized as HλLF-LIFE, is a science fiction first-person shooter developed and published by Valve. The player takes the perspective of the scientist Gordon Freeman who struggles to escape an underground research facility after a failed experi
A drug's half–life is the time required for a drug to reach 50% of steady-state levels during administration or to decay 50% from steady-state levels after administration ceases. From: Comprehensive Clinical Psychology, 1998 About this pageSet alert Also in subject areas: Immunology and Micro...
half-life n 1.(General Physics) the time taken for half of the atoms in a radioactive material to undergo decay. Symbol:τ 2.(Biology) the time required for half of a quantity of radioactive material absorbed by a living tissue or organism to be naturally eliminated (biological half-life...
No abstract is available for this article.doi:10.1002/scin.2008.5591741115Davide CastelvecchiJohn Wiley & Sons, Ltd.Science News
Figure 50.4.Graphical determination of half-life (t1/2). t1/2=0.693kel In addition, based on the elimination half-life, the time needed for clearance of a drug can be estimated; approximately, 97% of the drug is eliminated by five half-lives, and just over 99% of the drug is eliminat...
Actuarial escape velocity is the idea that at some point average human lifetime will grow by more than a year each year. Right now the rate is only a fraction of a year (thanks to changes in medical science and hygiene) a year. If it exceeds one year per year, people will effectively...
Understand what half-life is and its applications in chemistry and physics. Explore the equation for half-life, various half-life examples, and worked-out problems. Half-Life Definition: What is Half-Life in Chemistry? Half-life is a useful concept in science. In fact, the famous chemist ...
The biological half-life of thyroxine (t ) is defined as the time in days for one-half of the biological activity of the hormone to be lost. An alternative... GW Pipes,BN Premachandra,GW Turner - 《Journal of Dairy Science》 被引量: 11发表: 1959年 The Biological Half-Life of Softwar...