منابع مشابه
Sometimes, more is better.
(See the article by El Sahly et al, on pages 703–12.) Influenza causes significant morbidity and mortality with an estimated 36 000 attributable deaths in the United States annually [1]. Human immunodefi-ciency virus (HIV) infection, specifically , advanced disease (CD4 count ,200 cells/lL), has been associated with excess morbidity and mortality [2]. With the use of combination antiretroviral ...
متن کاملThe Truth Is Sometimes Simple
Note: The following version of this paper does not contain the proofs of the stated theorems. A longer version, complete with proofs, is forthcoming. §1. Introduction. In "The truth is never simple" (1986) and its addendum (1988), Burgess conducts a breathtakingly comprehensive survey of the complexity of the set of truths which arise when you add a truth predicate to arithmetic, and interpret ...
متن کاملWhy is A Few Sometimes A Lot?
It is not surprising to find that the quantity picked out by terms like a few and a lot is context dependent. We can easily accept that a few books might be 10 books, yet a lot of smartphones might only be 4 smartphones. The current paper posits that there are two hypotheses that can explain can explain this context dependency: the Definite Number Hypothesis (DNH), and the Gradable Quantifier H...
متن کاملSymmetric Decreasing Rearrangement Is Sometimes Continuous
This paper deals with the operation .9R 'of symmetric decreasing re-arrangement which maps Wl,p (Rn) to Wi ,p (Rn) . We show that even thoughit is norm decreasing, .9R is not continuous for n ~ 2. The functions at which.9R is continuous are precisely characterized by a new property called co-arearegularity. Every sufficiently differentiable function is co-area regular, and both<...
متن کاملNonmonotonic Reasoning Is Sometimes Simpler! 1
We establish the complexity of decision problems associated with the nonmonotonic modal logic S4. We prove that the problem of existence of an S4-expansion for a given set A of premises is P 2-complete. Similarly, we show that for a given formula ' and a set A of premises, it is P 2-complete to decide whether ' belongs to at least one S4-expansion for A, and it is P 2-complete to decide whether...
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ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 1979
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed056p767.1