The survival of animals depends, among other things, on their ability to identify threats in their surrounding environment. Senses such as olfaction, vision and taste play an essential role in sampling their living environment, including microorganisms,
To celebrate Cody's Five-Year Anniversary, write a function to determine if a positive integer n is a safe prime in which the prime p (such that n=2p+1) isalso a safe prime. Examples isextrasafe(5) = false % because 5=2*2+1 and 2 is not a safe prime isextrasafe(23) = true...
(2012) Semantic primes, semantic molecules, semantic templates: Key concepts in the NSM approach to lexical typology. Linguistics 50: pp. 711-743Goddard C 2012 `Semantic primes, semantic molecules, semantic templates: Key concepts in the NSM approach to lexical typology' Linguistics 50(3): 711-...
Arithmetic progressions of arbitrary length and consisting only of primes and almost - Grosswald - 1980 () Citation Context ...uition, coming form sieve theory, that almost primes are much easier to deal...
Under this definition, if n is a pseudoprime to base a, then n and a are necessarily coprime ( HINT: un + va = 1, for some integers u and v). There's also a weaker definition of the term for which this need not be so. Carmichael...
Nuclear Pore complexes (NPCs) act as docking sites to anchor particular DNA lesions facilitating DNA repair by elusive mechanisms. Using replication fork barriers in fission yeast, we report that relocation of arrested forks to NPCs occurred after Rad51
* Final gross prices may vary according to local VAT. Get Access Abstract A ring is a UMP-ring if every maximal ideal in the ring is the union of the minimal prime ideals it contains. Banerjee, Ghosh and Henriksen have characterized Tychonoff spaces X for which C(X) is a UMP-ring. On...
PENTAX Primes 译文 PENTAX Primes/宾得镜头点评 Starting with wide angle lenses and naturally progressing toward the telephoto end of Pentax Lens' lineup, here we go...从广角镜头开始,按宾得镜头的阵容朝长焦镜头为止,好了,我们开始吧…15mm K15/3.5 is a rectilinear lens, which is thought to ...
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Canon EF 100mm f2.8 Macro (new in 1996 the old metal one that fully extends to ar real 1:1) Canon 200mm f2.8 I have tried, but, not kept, f 1.4 primes. For the most part, I find that, on my full frame cameras, vignetting, even with post processing, is not acceptable. Also,...