David Pratt
نویسندگان
چکیده
منابع مشابه
The Proteins of Bacteriophage M13 by Timothy J. Henry and David Pratt
-Particles of the small filamentous coliphage M13 contain not only the major coat protein, which is the product of phage gene 8, but also a minor coat protein, the A protein, which is the product of gene 3. The A protein has a molecular weight of approximately 70,000 daltons, is present in one copy per virion, and is responsible for phage attachment to host cells. Also associated with purified ...
متن کاملPratt Paper cpy
The use of a range of technical, symbolic and other means of representation for sensory evaluation contributes to high quality product development in the Food industry. Use of sensory evaluation techniques adapted from industrial practice would contribute to pupils' achievement of higher levels of attainment particularly in Attainment target 3: Planning & Making. Existing educational resources ...
متن کاملAndy C Pratt
The aim of this paper is to examine which factors in energy systems and the built environment could influence the future of work. In addition, it looks at trends in relation to corporate demands for space and its specifications, and considers what the scope is for integrating business and industry within the dwelling landscape. It seeks to consider these questions on a 50-year time horizon. The...
متن کاملPrime Chains and Pratt Trees
ABSTRACT. We study the distribution of prime chains, which are sequences p1, . . . , pk of primes for which pj+1 ≡ 1 (mod pj) for each j. We first give conditional upper bounds on the length of Cunningham chains, chains with pj+1 = 2pj+1 for each j. We give estimates for P (x), the number of chains with pk 6 x (k variable), and P (x; p), the number of chains with p1 = p and pk 6 px. The majorit...
متن کاملThe Lucas-Pratt primality tree
In 1876, E. Lucas showed that a quick proof of primality for a prime p could be attained through the prime factorization of p − 1 and a primitive root for p. V. Pratt’s proof that PRIMES is in NP, done via Lucas’s theorem, showed that a certificate of primality for a prime p could be obtained in O(log p) modular multiplications with integers at most p. We show that for all constants C ∈ R, the ...
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ژورنال
عنوان ژورنال: BMJ
سال: 2007
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.39108.684595.fa