منابع مشابه
A trick presentation
One person’s fight against an HIV infection can decrease the virus’s ability to threaten its next victim, say Goepfert et al. (page 1009). Mutations that help the virus survive in one host decrease its ability to replicate in the next. HIV mutations that help the virus bypass the host’s immune system often fall within gag. This gene is a favorite target for mutations because, for some reason, G...
متن کاملProbing the mechanism of enzymatic phosphoryl transfer with a chemical trick.
N substitutions at phosphorus comprise one of the most important classes of reactions in biology. Phosphate diester substitution reactions are catalyzed by nucleases and polymerases and are critical in DNA replication and transcription. Phosphate monoester (phosphoryl transfer) reactions are catalyzed by GTPases, ATPases, protein, and small molecule kinases, protein, and small molecule phosphat...
متن کاملBounds from a card trick
We describe a new variation of a mathematical card trick, whose analysis leads to new lower bounds for data compression and estimating the entropy of Markov sources.
متن کاملMissing a trick: Karatsuba revisited
There are a variety of ways of applying the Karatsuba idea to multi-digit multiplication. These apply particularly well in the context where digits do not use the full word-length of the computer, so that partial products can be safely accumulated without fear of over ow. Here we re-visit the arbitrary degree version of Karatsuba and show that the cost of this little-known variant has been over...
متن کاملKernel Reparametrization Trick
While deep neural networks have achieved state-of-the-art performance on many tasks across varied domains, they still remain black boxes whose inner workings are hard to interpret and understand. In this paper, we develop a novel method for efficiently capturing the behaviour of deep neural networks using kernels. In particular, we construct a hierarchy of increasingly complex kernels that enco...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1906
ISSN: 0036-8733
DOI: 10.1038/scientificamerican06231906-513