منابع مشابه
An arcane cardiomyopathy
Last February, the Lancet and the New England Journal of Medicine almost simultaneously published two interesting case reports on an arcane cardiomyopathy [1, 2]. The New York Times drew attention to these papers in their Health Section as ‘A Medical Mystery Solved’. A 55-year-old man is described. He was hospitalised for severe heart failure after he had gone from doctor to doctor seeking a di...
متن کاملStreptomycetes are special: arcane applications
The evolution and spread of antibiotic resistance determinants in human and animal pathogens has caused increased morbidity and mortality of infection throughout the world, with correspondingly staggering increases in cost to health-care systems (Davies and Davies, 2010). Although a proportion of this epidemic is a result of mutation, it is considered that most occurs through the acquisition of...
متن کاملAn arcane role of DNA in transcription activation.
The mechanism by which the cAMP receptor protein (CRP) activates transcription has been investigated using the lac promoter of Escherichia coli. For transcription activation, an interaction between DNA-bound CRP and RNA polymerase is not sufficient. CRP must bind to a site in the same DNA and close to the promoter. CRP action requires an intact spacer DNA to provide a rigid support in building ...
متن کاملAre Lebed's Magic Angles Truly Magic?
We report high-resolution angle-dependent measurements of the Periodic Orbit Resonance (POR) effect in (TMTSF):CI04. We observe additional harmonic resonances that were not observed in previous studies. By measuring over a broad range of frequency, field, and field orientation, we find that all of the POR evolve from the Lebed magic angles observed in dc (co = O) AMRO measurements. However, we ...
متن کاملOn Barycentric-Magic Graphs
Let $A$ be an abelian group. A graph $G=(V,E)$ is said to be $A$-barycentric-magic if there exists a labeling $l:E(G)longrightarrow Asetminuslbrace{0}rbrace$ such that the induced vertex set labeling $l^{+}:V(G)longrightarrow A$ defined by $l^{+}(v)=sum_{uvin E(G)}l(uv)$ is a constant map and also satisfies that $l^{+}(v)=deg(v)l(u_{v}v)$ for all $v in V$, and for some vertex $u_{v}$ adjacent t...
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ژورنال
عنوان ژورنال: Reference & User Services Quarterly
سال: 2013
ISSN: 1094-9054
DOI: 10.5860/rusq.53n1.51