منابع مشابه
4 Powering of Graphs
The above theorem implies that for an (N, d, λ)-expander, the number of neighbors of S is at least constant fraction of |S| (for |S| ≤ N/2), where the constant ε depends only on λ and is independent of the size of the graph. This implies that the diameter of G is at most O(logN) because of the following argument: Consider any two vertices s and t in G. The number of vertices within distance r o...
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Before canals and railways developed as a major transport network, it was seldom profitable to transport beer inland over more than a few miles. In country towns and villages, therefore, beer would be brewed either by a small 'common' brewery that supplied a handful of pubs and private customers, or in an even smaller brew-house attached to the pub itself. Many families also brewed their own be...
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‘Robot’ is a word of Czech origin and describes a machine that automatically performs complicated, often repetitive tasks – while a machine is any assemblage of parts that transmit forces, motion, and energy one to another in a predetermined manner. Although these formal definitions derive from the macroscopic world, assemblage, transmission and repetition remain key issues in the development o...
متن کاملThe Montgomery Powering Ladder
This paper gives a comprehensive analysis of Montgomery powering ladder. Initially developed for fast scalar multiplication on elliptic curves, we extend the scope of Montgomery ladder to any exponentiation in an abelian group. Computationally, the Montgomery ladder has the triple advantage of presenting a Lucas chain structure, of being parallelized, and of sharing a common operand. Furthermor...
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Creating long-term memory requires a cellular program in neurons involving gene expression, protein synthesis, and formation of new synaptic connections. Suzuki et al. (2011) show that astrocytes, glial cells of the brain, play a necessary role in this program by converting glycogen to lactate and transporting it to neurons.
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ژورنال
عنوان ژورنال: Nature Climate Change
سال: 2021
ISSN: ['1758-6798', '1758-678X']
DOI: https://doi.org/10.1038/s41558-021-01185-5