منابع مشابه
Chasing the infecting HIV-1.
In the absence of an effective prophylactic vaccine and successful viral eradication strategies, the burden of human immunodeficiency virus type 1 (HIV-1) infection and disease continues to grow worldwide. The events characterizing primary HIV-1 infection and the early stages of the infection have been the focus of extensive research addressing the modalities of HIV-1 transmission. A thorough u...
متن کاملChasing Constrained
We investigate the implication problem for constrained tuple-generating dependencies (CTGDs), the extension of tuple-and equality-generating dependencies that permits expression of semantic relations (constraints) on variables. The implication problem is central to identifying redundant integrity constraints, checking integrity constraints on constraint databases, detecting the independence of ...
متن کاملChasing chaos
Both simple and hybrid genetic algorithms encounter difficulties when presented with a function which has multiple values. Similarly, changing environments or functions which change rapidly present other problems. This paper presents an algorithm that is capable of coping with both of these scenarios: it can accommodate multiple solutions simultaneously and can track changes in optima efficient...
متن کاملChasing CHOOZ
Since 1998 when SuperKamiokande announced incontrovertible evidence of neutrino oscillations, a series of experiments have unravelled most of the fundamental neutrino parameters. Two important pieces of information still await determination: the absolute value of the masses, together with their hierarchy, and the third mixing angle, for which there only exists a limit set by the CHOOZ experimen...
متن کاملChasing sphingosine-1-phosphate, a lipid mediator for cardiomyocyte survival.
Sphingosine-1-phosphate (S1P) is a sphingolipid metabolite that regulates many essential biological processes in various cells and tissues. S1Pmay act as an extracellular ligand to specific G protein-coupled S1P receptors (S1P1–5) or as an intracellular second messenger. Sphingosine is derived from cleavage of ceramide by ceramidases in the sphingolipid degradative pathway. It can be catalyzed ...
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ژورنال
عنوان ژورنال: Science-Business eXchange
سال: 2010
ISSN: 1945-3477
DOI: 10.1038/scibx.2010.331