منابع مشابه
Could René Descartes Have Known This?
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...
متن کاملThe 'What Could Have Been' Photo
The goal of the project is to create new scenarios in a supplied photo by replacing some of its elements with elements from other photos. This could be used to repair imperfectly taken photos (photo with shadow due to camera lens that was partially covered by finger), to remove elements that spoil the imagery of a picture (a garbage can in the middle of a rose garden), or to create an image wit...
متن کامل"What went well"? "What could have been done better"?
http://pdm.medicine.wisc.edu Prehospital and Disaster Medicine Evaluations of the processes involved in an intervention are similar to the way in which diagnoses and treatments are defined in clinical medicine. Diagnoses and interventions cannot be accomplished without knowing the physiology/pathophysiology of the organ system(s) involved. Therapy is directed at the pathophysiology. As noted in...
متن کاملShifts 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 ...
متن کاملWhat we know about what we have never heard: evidence from perceptual illusions.
Are speakers equipped with preferences concerning grammatical structures that are absent in their language? We examine this question by investigating the sensitivity of English speakers to the sonority of onset clusters. Linguistic research suggests that certain onset clusters are universally preferred (e.g., bd>lb). We demonstrate that such preferences modulate the perception of unattested ons...
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ژورنال
عنوان ژورنال: British Dental Journal
سال: 2006
ISSN: 0007-0610,1476-5373
DOI: 10.1038/sj.bdj.4813876