منابع مشابه
An Extraordinary Josephson Junction
The combination of symmetry breaking effects, such as those occurring in magnets and superconductors, with topological order may result in remarkable new physics. Recent theoretical studies suggest that, in certain superconductors, exotic quasiparticle excitations can emerge that behave like Majorana fermions, chargeneutral quasiparticles that are their own antiparticles. In Physical Review Let...
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Ž . This paper documents possible modern within the last 50 years calcite cementation within an unconfined contaminated Ž . aquifer at the Test Area North TAN on the Idaho National Engineering and Environmental Laboratory site. Inferred modern calcite occurs at the distal tips of the latest generation of calcite cement and has bright luminescence when examined Ž . by cathodoluminescence. Lumine...
متن کاملExtraordinary claims require extraordinary evidence.
At the beginning of 2003, the Journal of Health Economics published a paper of great importance in public policy by DiMasi, Hansen, and Grabowski (referred to hereafter as “DHG 2003”). The paper is based primarily on confidential, proprietary data supplied by pharmaceutical companies to the Tufts Center for the Study of Drug Development, a research center that receives significant unrestricted ...
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We thank Light and Warburton (2005) [hereafter LW] for providing a context for us to further discuss and clarify our studies on the cost of new drug development (DiMasi et al., 2003 [hereafter DHG]; DiMasi et al., 1991b [hereafter DHGL]; Hansen, 1979). We disagree, however, with their analyses, comparators, and conclusions. Although LW suggest, through the invocation of selected reported cost f...
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Active object-oriented concepts are especially useful in the area of nonstandard applications in order to express an event-driven and constraint-driven system environment [Chak90, Daya88b, Ahme92]. Several attempts have been made to integrate active concepts into object-oriented databases [Beer91, Daya88a, Diaz91, Gatz91, Geha91, Kim92, Mede91]. Current approaches to active objectoriented datab...
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ژورنال
عنوان ژورنال: Gems & Gemology
سال: 1984
ISSN: 0016-626X
DOI: 10.5741/gems.20.4.222