منابع مشابه
As iron goes, so goes disease?
The brain iron overload disorders, collectively known as neurodegeneration with brain iron accumulation (NBIA), would seem to be tantalizing targets for chelation therapy. Efforts to lower brain iron in these disorders date back to the 1960s with deferoxamine mesylate, but systemic iron depletion limited its use. With the advent of chelators better able to specifically relieve central nervous s...
متن کاملWho stays, who goes, who returns? East--West migration within Germany since reunification
We study the determinants of East–West migration within Germany during the period 1990–2006, using administrative data, the German Microcensus and the German Socio-Economic Panel. We find that in addition to income prospects and employment status, two well-known determinants of migration, psychological and social factors play an important role in determining the migration decision. Men and wome...
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Motivated by recent developments in solid electrolytes based on lithium phosphorous oxynitride (LiPON) materials, we carried out computer simulations in order to develop an understanding of the detailed mechanisms of ionic transport. Starting with crystalline Li3PO4, we investigated some possible structures of isolated defects associated with extrinsic Li ion vacancies and interstitials. In par...
متن کاملAnything Goes
Representing OT hierarchies in terms of weighted sums of violations requires in the general case exponential growth of weights; and any such weight system will only work for finite fragments of grammars in which the quantity of violations incurred by optima does not grow without bound (typically, those fragments in which input size is bounded). This conclusion is based on a worst-case analysis,...
متن کاملHealing beauty?
Beauty—as the saying goes—is in the eye of the beholder, though this relativistic insight has not stopped humans from spending more than 6,000 years striving to artificially enhance their looks. From ancient Egypt and Sumer until today, the quest for beauty is recorded in our literature, music and art. Even today, many women and men devote considerable amounts of time and money to selecting and...
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ژورنال
عنوان ژورنال: Index on Censorship
سال: 1995
ISSN: 0306-4220,1746-6067
DOI: 10.1177/030642209502400417