منابع مشابه
Beaver in the liver
A 60-year-old woman with a congenital solitary right kidney presented with 1 month history of right flank pain associated with hematuria and urinary tract infection (UTI) symptoms. A Computed tomography (CT) was done in view of the precious kidney, and revealed features suggestive of right obstructive uropathy with pyelonephritis; for which appropriate treatment was subsequently instituted. Inc...
متن کاملAttacking the Busy Beaver 5
Since T. Rado in 1962 defined the busy beaver game several approaches have used computer technology to search busy beavers or even compute special values of Σ. Σ(5) is not yet known. A new approach to the computation of Σ(5) is presented, together with preliminary results, especially Σ(5)≥4098. This approach includes techniques to reduce the number of inspected Turing machines, to accelerate si...
متن کاملTask Types at “Beaver” Contests
Education process is connected with computers in different ways. Therefore, it is necessary to find proper place for computers in this process. One way to attract young people is using computer-based competitions. There are well-known programming competitions (Olympiads in Informatics) where deep knowledge of programming and algorithms is necessary. However, only a small part of students is inv...
متن کاملRecombinations of Busy Beaver Machines
Many programmers belive that Turing-based machines cannot think. We also believe in this, however it is interesting to note that the most sophisticated machines are not programmed by human beings. We have only discovered them. In this paper, using well-known Busy Beaver and Placid Platypus machines, we generate further very similar, but not exactly the same machines. We have found a recombinate...
متن کاملBusy Beaver – An Evolutionary Approach
The Busy Beaver is an interesting theoretical problem proposed by Tibor Rado in 1962. Since then, it has attracted the attention of many researchers and several contests were organised trying to produce good solutions. In this paper, we propose an evolutionary approach to the problem. Our experimental results prove that this technique is very effective in attacking Busy Beaver, since we were ab...
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ژورنال
عنوان ژورنال: Journal of Mammalogy
سال: 1921
ISSN: 1545-1542,0022-2372
DOI: 10.1093/jmammal/2.3.171-a