منابع مشابه
New flier glides into the Pacific
Linking fluids as they twist and writhe Helicity is a measure of corkscrew-like motion described by the amount of twisting, writhing, and linking in a fluid. Total helicity is conserved for ideal fluids, but how helicity changes in real fluids with even tiny amounts of viscosity has been an open question. Scheeler et al. provide a complete measurement of total helicity in a real fluid by using ...
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In this paper, we present a Fingerprint Linear Estimation Routine (FLiER) to identify topology changes in power networks using readings from sparsely-deployed phasor measurement units (PMUs). When a power line, load, or generator trips in a network, or when a substation is reconfigured, the event leaves a unique “voltage fingerprint” of bus voltage changes that we can identify using only the po...
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PREMISE OF THE STUDY American amphitropical disjunction (AAD) is an important but understudied New World biogeographic pattern in which related plants occur in extratropical North America and South America, but are absent in the intervening tropics. Subtribe Amsinckiinae (Boraginaceae) is one of the richest groups of plants displaying the AAD pattern. Here, we infer a time-calibrated molecular ...
متن کاملCan frequent hemodialysis be too frequent?
Many nephrologists believe that more hemodialysis, whether in the form of longer treatments, more frequent treatments, or both, is better than less. Emerging evidence largely supports this view, with most, although not all studies, showing biochemical, cardiovascular, quality of life, or survival benefits with short daily or slow nocturnal hemodialysis. Much of the focus of studies thus far has...
متن کاملFrequent SMILES
Predictive graph mining approaches in chemical databases are extremely popular and effective. Most of these approaches first extract frequent sub-graphs and then use them as features to build predictive models. In the work presented here, the approach taken is similar. However, instead of frequent sub-graphs, frequent trees, based on SMILES strings are derived. For this, the SMILES strings of c...
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ژورنال
عنوان ژورنال: Academic Emergency Medicine
سال: 2006
ISSN: 1069-6563,1553-2712
DOI: 10.1111/j.1553-2712.2006.tb01667.x