منابع مشابه
The Cipher SHARK
We present the new block cipher SHARK. This cipher combines highly non-linear substitution boxes and maximum distance separable error correcting codes (MDS-codes) to guarantee a good di usion. The cipher is resistant against di erential and linear cryptanalysis after a small number of rounds. The structure of SHARK is such that a fast software implementation is possible, both for the encryption...
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In 1996, Duke Children's Hospital was in serious trouble. Its $11 million annual operating loss had forced administrators to make cutbacks. As a result, some caregivers felt that the quality of care had deteriorated. Parents' complaints were on the rise. Frustrated staff members were quitting. In this article, Jon Meliones, DCH's chief medical director, candidly describes how his debt-ridden ho...
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Information on the fine-scale movement of predators and their prey is important to interpret foraging behaviours and activity patterns. An understanding of these behaviours will help determine predator-prey relationships and their effects on community dynamics. For instance understanding a predator's movement behaviour may alter pre determined expectations of prey behaviour, as almost any aspec...
متن کاملThe Tiger Shark File System
Tiger Shark is a parallel file system for IBM’s AIX operating system. It is designed to support interactive multimedia, particularly large-scale systems such as interactive television (ITV). Tiger Shark scales across the entire RS/ 6000 product line, from small desktop machines to the SP2 parallel supercomputer. Tiger Shark’s primary features are support for continuoustime data, scalability, hi...
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The increasing demand for shark fins in Asia, and the publicity resulting from finning and discarding live sharks, has generated concern regarding the sustainability of the world’s shark populations. These concerns can be attributed to the shark’s life history, which is characterized by a pattern of slow growth, late maturity, few offspring, and long life, making populations vulnerable to overe...
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ژورنال
عنوان ژورنال: Nature
سال: 1991
ISSN: 0028-0836,1476-4687
DOI: 10.1038/350645d0