منابع مشابه
Job Strain among Rubber-glove-factory Workers
Job strain has become a major concern because of its potential impacts on worker well-being and performance. This cross-sectional study aimed to assess the prevalence of, and examine factors associated with, job strain among workers in a rubber-glove factory, in a central province of Thailand. A total of 200 workers aged 18–55 yr, who had worked at the factory for at least 6 months, completed t...
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The development of a new Escherichia coli tester strain for use in metabolic and mechanistic studies of genotoxins, strain MR2101/pKR11, has recently been reported. This strain, a derivative of the E. coli K12 laboratory strain AB1157, has sensitivity towards the detection of base-substitution mutagenesis, monitored by the reversion of arginine auxotrophy [argE3, (ochre)]. Besides arginine, MK2...
متن کاملA better tester for bipartiteness?
Alon and Krivelevich (SIAM J. Discrete Math. 15(2): 211-227 (2002)) show that if a graph is ε-far from bipartite, then the subgraph induced by a random subset of Õ(1/ε) vertices is bipartite with high probability. We conjecture that the induced subgraph is Ω̃(ε)-far from bipartite with high probability. Gonen and Ron (RANDOM 2007) proved this conjecture in the case when the degrees of all vertic...
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We investigated the effect of deformation of natural rubbers (NR) resulting from the high centrifugal pressure of fast magicangle spinning (MAS) on 13C NMR spectra. The solid state 13C MAS NMR spectrum with high-power 1H dipolar decoupling (DD) of NR presents liquid-like, very narrow signals (full width at half height, FWHH, is less than 10 Hz). However, the static state 13C DD NMR spectrum of ...
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ژورنال
عنوان ژورنال: Journal of Research of the National Bureau of Standards
سال: 1948
ISSN: 0091-0635
DOI: 10.6028/jres.041.012