منابع مشابه
Solution Structure of Pyoverdin GM - IIf
The three-dimensional structure in solution of ferri-pyoverdin GM-I1 isolated from the culture medium of Pseudomonasfluorescens was determined by application of N M R methods to the Ga3+ analogue. Distance geometry calculations were performed with FILMAN using interproton distances and coupling constants as constraints. Further conformational analysis was carried out by energy minimization with...
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We review the past 25 years of time series research that has been published in journals managed by the International Institute of Forecasters (Journal of Forecasting 1982–1985; International Journal of Forecasting 1985–2005). During this period, over one third of all papers published in these journals concerned time series forecasting. We also review highly influential works on time series fore...
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It is sometimes argued that possible worlds are too rich. Indeed, for every sentence φ and every world w, either φ is true at w, or ¬φ is true at w. Possible worlds leave nothing unsettled: for any question one may ask, there is always an answer, yes or no. My view goes along the opposite side. I take possible worlds to be incredibly poor, and I think that a good deal can be added to them. The ...
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Although they appear unrelated, the type system of the polymorphic λ-calculus with references and the assertions of concurrent separation logic with first-class locks share a critical feature: an unsound contravariant circularity in their naı̈ve semantic model. We developed indirection theory to automatically construct, and cleanly axiomatize, step-indexed approximations to these naı̈ve models, a...
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ژورنال
عنوان ژورنال: Nature
سال: 2000
ISSN: 0028-0836,1476-4687
DOI: 10.1038/35021149