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half-life
(redirected from Half-lives)

    Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
Half-life
The point in the life of a mortgage-backed security guaranteed or issued by the Government National Mortgage Association, the Federal National Mortgage Association or the Federal Home Loan Mortgage Corporation when half the principal has been repaid.
half-life
The length of time before half the principal on a debt is expected to be repaid through amortization or sinking fund payments. For example, a 25-year bond issue may require the issuer to retire 5% of the beginning principal commencing 5 years after the issue date. Thus, the bond issue has a half-life of 5 years plus the number of years required to retire half the issue, or 15 years. Mortgage-backed securities often have a relatively short half-life because many homeowners pay off or refinance their mortgages early. Also called average life.


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What kind of maintenance half-lives might emerge in the near future ?
Our right to death: how medical breakthroughs challenge easy answers ... by Sirius, R.U. / Reason
The aim of the present study was to model apparent serum half-lives of polybrominated diphenyl ethers (PBDEs) with 7-10 bromine substituents.
Apparent half-lives of hepta- to decabrominated diphenyl ethers in ... by Jakobsson, Kristina / Environmental Health Perspectives
So it may be that at least some of the nucleosides are essential in maintaining long-term suppression after you stop the medications, in a way that is perhaps beyond half-lives.
Weekend treatment interruptions for certain well-controlled patients: ... by James, John S. / AIDS Treatment News
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