نتایج جستجو برای: 543 55029 rostango
تعداد نتایج: 2371 فیلتر نتایج به سال:
SphK (sphingosine kinase) is the major source of the bioactive lipid and GPCR (G-protein-coupled receptor) agonist S1P (sphingosine 1-phosphate). S1P promotes cell growth, survival and migration, and is a key regulator of lymphocyte trafficking. Inhibition of S1P signalling has been proposed as a strategy for treatment of inflammatory diseases and cancer. In the present paper we describe the di...
Principal Investigator: Mark M. Benjamin Department of Civil and Environmental Engineering, Box 352700, University of Washington, Seattle WA, 98195-2700 tel. (206) 543 7645, e-mail [email protected] Co-Investigator: Gregory V. Korshin Department of Civil and Environmental Engineering, Box 352700, University of Washington, Seattle WA, 98195-2700 tel. (206) 543 2394, e-mail [email protected]...
In this paper we report our investigations on the frequency stabilization and frequency measurements of 543 nm HeNe laser. It contains following four dierent works. (1) Using a metal laser tube we have built an iodine-stabilized 543 nm HeNe laser by the Frequency-Modulation (FM) spectroscopy. The signal-to-noise ratio of the hyper®ne spectrum reached 2 ́ 10 at 1 s sampling time. (2) We have bu...
BACKGROUND The deep-sea environment harbors a vast pool of novel enzymes. Owing to the limitations of cultivation, cultivation-independent has become an effective method for mining novel enzymes from the environment. Based on a deep-sea sediment metagenomics library, lipolytic-positive clones were obtained by activity-based screening methods. RESULTS Two novel esterases, DMWf18-543 and DMWf18...
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Delays in communication networks: Lets consider a bit pipe which offers a capacity of C bits/sec. Assuming we have packets of a fixed length L traversing the bit pipe with the time between packet arrivals being T. If L/C < T then the packets are moving out faster than they come in and we can use the bit pipe to its maximum capacity. However, the preceding statement is true only if L and T are d...
This article seeks to support the earlier dating of campaigns on Roman eastern frontier in 540s. It addresses points made a recent contribution by Michael Whitby, who argued that traditional chronology, which places invasion Persarmenia 543 and Persian siege Edessa 544, should be retained. The demonstrate grounds he offers are inadequate concludes therefore dating, according Romans invaded autu...
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