منابع مشابه
Peer to Peer Edge Caches Should be Free
Bulk-data peer to peer systems have been promoted as reducing the cost of content distribution. Unfortunately, this isn’t generally true. Rather, bulk-data P2P shifts the costs of delivery from the content provider to the ISPs or content recipients. A very simple economic model of content delivery shows how this occurs and that, under some conditions, P2P can grossly magnify costs. Even with lo...
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Let $G$ be a connected graph with minimum degree $delta$ and edge-connectivity $lambda$. A graph ismaximally edge-connected if $lambda=delta$, and it is super-edge-connected if every minimum edge-cut istrivial; that is, if every minimum edge-cut consists of edges incident with a vertex of minimum degree.In this paper, we show that a connected graph or a connected triangle-free graph is maximall...
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متن کاملRoutine tests should be challenged in cardiology.
The need for routine diagnostic tests and procedures needs to be challenged in medical practice, because of continuous pressure to reduce the costs of health care systems. If costs can be minimized by avoidance of routine tests, more sources can perhaps be directed to new advanced diagnostic and therapeutic procedures. This challenge is important particularly in cardiology, because while new di...
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ژورنال
عنوان ژورنال: European Journal of Cardio-Thoracic Surgery
سال: 2016
ISSN: 1010-7940,1873-734X
DOI: 10.1093/ejcts/ezw155