منابع مشابه
Three Puzzles in Hierarchical Evolution1
SYNOPSIS. The maximum degree of hierarchical structure of organisms has risen over the history of life, notably in three transitions: the origin of the eukaryotic cell from symbiotic associations of prokaryotes; the emergence of the first multicellular individuals from clones of eukaryotic cells; and the origin of the first individuated colonies from associations of multicellular organisms. The...
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I will argue for a (qualified) negative answer to all three questions. Illusions of all three sorts are impossible. This leads to conclusions about the content of spatial experience and spatial concepts: I will argue for a sort of spatial functionalism, on which space is picked out as whatever plays a certain functional role, over spatial primitivism, on which we have a more direct and primitiv...
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In this lecture I will talk about three mathematical puzzles involving mathematics and computation that have preoccupied me over the years. The first puzzle is to understand the amazing success of the simplex algorithm for linear programming. The second puzzle is about errors made when votes are counted during elections. The third puzzle is: are quantum computers possible?
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Niels Bohr’s “correspondence principle” is typically believed to be the requirement that in the limit of large quantum numbers (n→∞) there is a statistical agreement between the quantum and classical frequencies. A closer reading of Bohr’s writings on the correspondence principle, however, reveals that this interpretation is mistaken. Specifically, Bohr makes the following three puzzling claims...
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In this paper, we present an effective algorithm for reassembling three-dimensional apictorial jigsaw puzzles obtained by dividing a curved surface into a finite number of interlocking pieces. As such, our algorithm does not make use of any picture or design that may be painted on the surface; nor does it require a priori knowledge of the overall shape of the original surface. A motivating exam...
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ژورنال
عنوان ژورنال: Integrative and Comparative Biology
سال: 2003
ISSN: 1540-7063,1557-7023
DOI: 10.1093/icb/43.1.74