D J Wischik

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Hyperphosphorylated tau protein which can be isolated on the basis of insolubility in 1% sarkosyl (A68-tau fraction) is thought to represent a precursor pool for PHF assembly, associated histologically with neuritic pathology, which feeds into a more resistant tangle-associated PHF pool via cross-linking and proteolysis. We examined these predictions at the(More)
In optical networks, the vast bandwidth available in an optical bre may b e utilized by splitting it into several channels, each of a diierent w avelength. This allows signals to be routed entirely in the optical domain. This essay studies such routings, and examines the number of diierent w avelengths needed for irregular networks. We nd the numb e r o f w(More)
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