نتایج جستجو برای: n 54

تعداد نتایج: 1041344  

Journal: :The American Journal of the Medical Sciences 1865

Journal: :Progress in Photovoltaics: Research and Applications 2019

Journal: :The Journal of the Society of Chemical Industry, Japan 1948

Journal: :Journal of Vascular Surgery 2023

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...

2010
Kai Zhao Mingzhu Liu Richard R. Burgess

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...

Journal: :The Journal of chemical physics 2008
Yi Gao Nan Shao X C Zeng

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...

Journal: :Dalton transactions 2013
Robin E Anderson Andrew R Barron

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...

1999
María-Trinidad Gallegos Martin Buck David J. Studholme Siva R. Wigneshwereraraj DAVID J. STUDHOLME SIVA R. WIGNESHWERERARAJ MARÍA-TRINIDAD GALLEGOS

Aquifex aeolicus Hyperthermophile NifA-Like Protein from the) and a 54 ς (N ς Functionality of Purified

2014
Bernard Beauzamy

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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