Ancient Balances
نویسندگان
چکیده
منابع مشابه
Highwire balances synaptic growth.
Editor's Note: These short reviews of a recent paper in the Journal, written exclusively by graduate students or postdoctoral fellows, are intended to mimic the journal clubs that exist in your own departments or institutions. For more information on the format and purpose of the Journal Club, please see Review of Wu et al. A growing body of evidence suggests that ubiquitination regulates synap...
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A clean house is a sign of a boring life. When more interesting or urgent matters arise, the housework has to wait. Similarly, when the body needs to fight infection, the liver's clean-up work is impaired. Chow et al. (page 2589) now show why: switching on virus-fighting factor interferon also switches off the liver's detoxification pathway. Viral infection can cause metabolic disorders, includ...
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The m-bonacci word is a generalization of the Fibonacci word to the m-letter alphabet A = {0, . . . ,m − 1}. It is the unique fixed point of the Pisot–type substitution φm : 0 → 01, 1 → 02, . . . , (m − 2) → 0(m − 1), and (m − 1) → 0. A result of Adamczewski implies the existence of constants c such that the m-bonacci word is c-balanced, i.e., numbers of letter a occurring in two factors of the...
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Potassium is abundant in the ICF compartment in the body and its excretion primarily depends on renal (about 90%), and to a lesser extent (about 10%) on colonic excretion. Total body potassium approximated to 50mmol/kg body weight and 2% of total body potassium is in the ECF compartment and 98% of it in the intracellular compartment.Dyskalemia is a frequent electrolyte imbalance observed among ...
متن کاملGeneralized balances in Sturmian words
One of the numerous characterizations of Sturmian words is based on the notion of balance. An innnite word x on the f0;1g alphabet is balanced if, given two factors of x, w and w 0 , having the same length, the diierence between the number of 0 0 s in w (denoted by jwj0) and the number of 0 0 s in w 0 is at most 1, i.e. jjwj0 ? jw 0 j0j 1. It is well known that an aperiodic word is Sturmian if ...
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ژورنال
عنوان ژورنال: Nature
سال: 1873
ISSN: 0028-0836,1476-4687
DOI: 10.1038/009008a0