نتایج جستجو برای: n 54
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Treatment of chronic limb-threatening ischemia (CLTI) involves a broad spectrum therapies including many new and emerging techniques. To standardize results studies examining this pathology to allow critical analysis comparison between studies, the Society for Vascular Surgery (SVS) produced recommended reporting standard guidelines endovascular management CLTI in 2016. Research that do not adh...
Bacteria core RNA polymerase (RNAP) must associate with a sigma factor to recognize promoter sequences. Promoters recognized by the sigma(54) (or sigma(N)) associated RNA polymerase are unique in having conserved positions around -24 and -12 nucleotides upstream from the transcriptional start site. Using DNA microarrays representing the entire Escherichia coli genome and promoter validation app...
Medium-sized double magic metal clusters, Al@Ag(54) (-) and Al@Cu(54) (-), are predicted based on unbiased global search and density functional calculation. Both bimetallic core-shell clusters have icosahedral symmetry, and they are much lower in energies than all other low-lying isomers. In contrast, the icosahedral cluster Al@Au(54) (-) is a high-energy isomer. Both Al@Ag(54) (-) and Al@Cu(54...
Highly oxygenated fullerenes, C(60)O(n) with 1 ≤ n ≤ 13, have been prepared by the Mo(O)(2)(acac)(2) catalysed oxidation of C(60) with (t)BuOOH. Increasing the catalyst : C(60) ratio or increasing the reaction temperature increases the yield as well shifting the product distribution to higher oxygenated products, in contrast, increasing the (t)BuOOH concentration shifts the product distribution...
Aquifex aeolicus Hyperthermophile NifA-Like Protein from the) and a 54 ς (N ς Functionality of Purified
Probabilistic methods allow a first analysis, which leads to a hierarchy, in terms of orders of magnitude: one risk deserves to be taken into account, whereas some others may be neglected. Then, according to the needs, one can go further, and ask for a better knowledge of those which have been kept. In this respect, we realized in 2005 a risk analysis for the French "Commissariat à l'Energie At...
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