منابع مشابه
Rooting Gene Trees without Outgroups: EP Rooting
Gene sequences are routinely used to determine the topologies of unrooted phylogenetic trees, but many of the most important questions in evolution require knowing both the topologies and the roots of trees. However, general algorithms for calculating rooted trees from gene and genomic sequences in the absence of gene paralogs are few. Using the principles of evolutionary parsimony (EP) (Lake J...
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I explore the origins of the unphysical predictions from rooted staggered fermion algorithms. Before rooting, the exact chiral symmetry of staggered fermions is a flavored symmetry among the four "tastes." The rooting procedure averages over tastes of different chiralities. This averaging forbids the appearance of the correct 't Hooft vertex for the target theory.
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N ov. 22, 2009, marked a significant milestone for Tamar Abell. It was the end of a 10-year ordeal that cost her family’s skilled nursing facility business more than $2 million in settlement costs and legal fees, not to mention numerous sleepless nights and hundreds of hours of paperwork. It began in the spring of 2000: After three decades of successfully owning and operating nursing facilities...
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In 1993, we published a paper in Development detailing the anatomical structure of the Arabidopsis root. The paper described how root growth was maintained by the precisely tuned activity of a small set of 'initials', which acted as the source of dividing and differentiating cells, and how these stem cell-like cells surrounded a few infrequently dividing cells. This work underpinned subsequent ...
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ژورنال
عنوان ژورنال: Practical Neurology
سال: 2001
ISSN: 1474-7758,1474-7766
DOI: 10.1046/j.1474-7766.2001.00008.x