منابع مشابه
Shifts in hexapod diversification and what Haldane could have said.
Data on species richness and taxon age are assembled for the extant hexapod orders (insects and their six-legged relatives). Coupled with estimates of phylogenetic relatedness, and simple statistical null models, these data are used to locate where, on the hexapod tree, significant changes in the rate of cladogenesis (speciation-minus-extinction rate) have occurred. Significant differences are ...
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Below we discuss the partition of the space of real univariate polynomials according to the number of positive and negative roots and signs of the coefficients. We present several series of non-realizable combinations of signs together with the numbers of positive and negative roots. We provide a detailed information about possible non-realizable combinations up to degree 8 as well as a general...
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We investigate the effects of alternative utterances on pragmatic interpretation of language. We focus on two specific cases: specificity implicatures (less specific utterances imply the negation of more specific utterances) and Horn implicatures (more complex utterances are assigned to less likely meanings). We present models of these phenomena in terms of recursive social reasoning. Our most ...
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Happy New Year and welcome to the twenty-third issue of HIV This Week! Topics include men who have sex with men (it’s the context, baby), HIV prevention trial conduct (the importance of good participatory practice in HIV vaccine trials); stigma (the double jeopardy whammy of ageism and HIV stigma; stigma in health care settings in China; stigma and secondary stigma among Chinese villagers), neu...
متن کاملIf you have said A, you must also say B: is this always true?
“Dissecting Bioethics,” edited by Tuija Takala and Matti Häyry, welcomes contributions on the conceptual and theoretical dimensions of bioethics. The section is dedicated to the idea that words defined by bioethicists and others should not be allowed to imprison people’s actual concerns, emotions, and thoughts. Papers that expose the many meanings of a concept, describe the different readings o...
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ژورنال
عنوان ژورنال: Physics Today
سال: 2004
ISSN: 0031-9228,1945-0699
DOI: 10.1063/1.1768652