منابع مشابه
Protein ladder sequencing.
A new approach to protein sequencing is described. It consists of two steps: (i) ladder-generating chemistry, the controlled generation from a polypeptide chain by wet chemistry of a family of sequence-defining peptide fragments, each differing from the next by one amino acid; and (ii) data readout, a one-step readout of the resulting protein sequencing ladder by matrix-assisted laser-desorptio...
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Sequencing of DNA fragments of 130 and 200 bp using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for DNA ladder detection was demonstrated. With further improvement in mass resolution and detection sensitivity, mass spectrometry shows great promise for routine DNA sequencing in the future.
متن کاملLadder Sandpiles
We study Abelian sandpiles on graphs of the form G×I, where G is an arbitrary finite connected graph, and I ⊂ Z is a finite interval. We show that for any fixed G with at least two vertices, the stationary measures μI = μG×I have two extremal weak limit points as I ↑ Z. The extremal limits are the only ergodic measures of maximum entropy on the set of infinite recurrent configurations. We show ...
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Introduction: Knowledge management helps us to share, learn and regenerate the new knowledge. Knowledge is the most important asset and greatest competitive advantage of many organizations today. Simultaneously, it can be observed that many organizations realize it is highly problematic and complicated to collect, store, retrieve, find, disseminate and reuse knowledge in modern fast changing or...
متن کاملThe birank number of ladder, prism and Mobius ladder graphs
Given a graph G, a function f : V (G)→ {1, 2, ..., k} is a k-biranking of G if f(u) = f(v) implies every u-v path contains vertices x and y such that f(x) > f(u) and f(y) < f(u). The birank number of a graph, denoted bi(G), is the minimum k such that G has a k-biranking. In this paper we determine the birank numbers for ladder, prism, and Möbius ladder graphs.
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ژورنال
عنوان ژورنال: Science
سال: 1993
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.8211132