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We are witnessing two trends in Web content access: (a) increasing amounts of dynamic and personalized Web content, and (b) a significant growth in “on-the-move” access using various mobile resource-constrained devices by nomadic users. Web caching and the content distribution network (CDN) are popular solutions for improving Web access latency and have the effect of moving content closer to th...
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Visible light excitation of [Ru(bpz)(2)(deeb)](PF(6))(2), where bpz is 2,2'-bipyrazine and deeb is 4,4'-(CO(2)Et)(2)-2,2'-bipyridine, in acetonitrile solutions with iodide is shown to initiate excited-state electron transfer reactions that yield iodine atoms. The iodine atoms subsequently react with iodide to form the I-I bond in I(2)(-*). The resultant Ru(bpz(-))(bpz)(deeb)(+), I(2)(-*) stores...
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ژورنال
عنوان ژورنال: Nature
سال: 2007
ISSN: 0028-0836,1476-4687
DOI: 10.1038/445826a