منابع مشابه
On Independently Finding Converging Paths in Internet
Two shortest paths P (u, v) and P ′(v, u) are called converging paths if path P (u, v) is exactly the reversal of path P ′(v, u). Independently finding two converging paths from node u and node v, so that a message from u to v is bound to meet a message from v to u, is not trivial even if both nodes have the correct and complete network link state information. This paper presents three differen...
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Interlocutors sometimes repeat each other’s representational hand gestures. We investigated if this is a case of direct mimicry of form, or whether perceiving a gesture gives rise to a semantic representation, which subsequently informs gesture production. For this we used an interactive route description task, in which a confederate’s gestures indicated the route in either the vertical or the ...
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A fascinating chain of events led in 1941 to the formation of the Department of Physiology at the Royal Gymnastic Central Institute (GCI) in Stockholm, Sweden. Erik Hohwü Christensen, from the scientifically advanced Lindhard School in Copenhagen became its first professor. A central research question for him concerned determining the limiting factors for maximal physical performance in man. Th...
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This paper seeks to provide a clearer understanding of discrepancies observed in the level, pace and style of e-business development across countries and industries. It is based on an original survey performed on 1100 firms in five developed countries. Through in-depth analyses of the adoption, use and impact of e-business technologies and methods we highlight contrasted paths of adoption acros...
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Selective motor neuron degeneration is a hallmark of amyotrophic lateral sclerosis (ALS). Around 10% of all cases present as familial ALS (FALS), while sporadic ALS (SALS) accounts for the remaining 90%. Diverse genetic mutations leading to FALS have been identified, but the underlying causes of SALS remain largely unknown. Despite the heterogeneous and incompletely understood etiology, differe...
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ژورنال
عنوان ژورنال: Nature Reviews Cancer
سال: 2002
ISSN: 1474-175X,1474-1768
DOI: 10.1038/nrc940