نتایج جستجو برای: r2
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Protein expression monitoring can be a good tool to determine disease onset and progression, and is also used in drug discovery and investigational science (1–4). However, commonly used assays lack the sensitivity and specificity required for the detection of low-abundance proteins (5,6). Several signal amplification technologies have been designed and applied to protein detection assays, inclu...
Proof. Proceed by contradiction. Suppose that f has more than one root in (0,∞). Let r1 and r2, with r1 < r2, be two consecutive such roots (note that we can always find two consecutive roots r1 and r2 because f (r) > 0 for any root r). From the hypothesis, we have f (r1) > 0 and f (r2) > 0. Since f ′ is continuous at r1, there exists an 0 < 2 < (r2− r1) such that f (x) > 0 in the interval (r1,...
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