1,722,609 research outputs found

    Messer (J.). — Stern Atlas. Saint-Pétersbourg, 1888

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    Callandreau Octave. Messer (J.). — Stern Atlas. Saint-Pétersbourg, 1888. In: Bulletin astronomique, tome 5, 1888. p. 550

    KCAI: Richard J. Stern Ceramics Building

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    Main, east entrance off Warwick Blvd. with diagonal walkway up small slope; Opened in 1968 at the Kansas City Art Institute, the original building featured gas and wood-fired kilns, clay mixers and studio space with potters wheels, shelves and tables. Renovated in 2006 with a donation from Richard J. Stern, it houses ceramics studios and classrooms, as well as the renovated kiln room. On the lower level are offices for the college’s maintenance and plant services department. In 2006 it was renovated (images are from 2007). It was refurbished again in 2015

    The decay tau -> 3 pi nu(tau), as a probe of the mechanism of dynamical chiral symmetry breaking

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    The decays tau --> 3 pi + nu(tau) are analyzed at one loop order in the framework of Generalized Chiral Perturbation Theory, in order to test the sensitivity to the size of spontaneous chiral symmetry breaking parameters, contained in the S-wave. The latter, due to a kinematical suppression, at threshold, of the P-wave, is relatively large enough to be detectable at high-energy machines, through azimuthal left-right asymmetries. This quantity (for the pi(-) pi(-) pi(+) mode), integrated from threshold to Q(2) = 0.35 GeV2, varies from (17 +/- 3)% in the standard case of large condensate up to (40 +/- 5)% in the extreme case of tiny condensate. The feasibility of such measurement at high luminosity colliders (e.g., CLEO) is discussed. This method provides an independent cross-check of forthcoming experimental determination of the two-light-flavor chiral condensate, based on low-energy pi pi scattering

    G. F. Papanek, D. M. Schydlowsky, J. J. Stern, Decision making for economic development

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    Étienne Gilbert. G. F. Papanek, D. M. Schydlowsky, J. J. Stern, Decision making for economic development. In: Tiers-Monde, tome 13, n°51, 1972. p. 647

    Steve J. Stern, Peru's Indian Peoples and the Challenge of Spanish Conquest. Huamanga to 1640

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    Wachtel Nathan. Steve J. Stern, Peru's Indian Peoples and the Challenge of Spanish Conquest. Huamanga to 1640. In: Annales. Économies, Sociétés, Civilisations. 38ᵉ année, N. 3, 1983. pp. 631-633

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    «An agreed principle in geometry: a magnitude consists of parts infinitely divisibile» (In pr. Eucl., p. 278, ll. 11-12). Proclus’ reception of the Pseudo-aristotelian work "On the Indivisibile Lines"

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    In many passages of his writings Proclus refers to the theory of "atomoi grammai", attributing it to Plato’s scholar Xenocrates of Chalcedon (i.e. In Tim. II, p. 246, l. 1 ff.; p. 165, l. 8 ff.; In Rem Publ. II, p. 27, l. 4 ff.; p. 48, l. 5 ff.; In Parm., p. 888, ll. 17-36; Instit. Phys. I, sect. 14 ll. 2-17; sect. 17, l. 10 ff.). The most relevant of these passages is to be found in his Commentary on the first Book of Euclid’s Elements (In pr. Eucl., Part I, Prop. X), where he recalls arguments focussing on the «incommensurability among magnitudes» (p. 278, l. 20), that can be read in the Pseudo-aristotelian work On the Indivisibile Lines (968 b 5-22). In this Opusculum (preserved and transmitted inside the Corpus Aristotelicum, but probably spurious) the Author presents a series of “proofs” of the existence of atomoi grammai (968 a 2-b 22), before moving against them “counter-proofs” (968 b 22-969 b 28) and many different arguments, which defend the character of continuity (syneches) of lines and magnitudes (969 b 28-972 34). Proclus’ passage about the same controversy was never thouroghly analysed (for example, only a few number of footnotes are devoted to it by G. Morrow in his translation, Princeton 1970, 19922; stimulating but not systematic comments are made on it by O. Apelt, Beiträge zur Geschichte der griechischen Philosophie, Leipzig 1891, p. 267 ff. and M. Timpanaro-Cardini, Pseudo-Aristotele, De lineis insecabilibus, Milano-Varese 1970, pp. 34-37). I’d like to comment it line by line in order to throw light on two main points: 1. Proclus’ sources and the way he uses them – with particular regard to Geminus (p. 278, l. 12); 2. the position he attributes to Euclid (p. 279, l. 1 ff.) and the one he assumes himself in the ancient debate about continuity or discontinuity of geometrical magnitudes: the divisibility of every continuum (whose definition is given at p. 278, ll. 15-16) is according to Proclus an «axiom» (ivi, l. 24); that every continuum is divisible to infinity is neither an axiom, nor a «hypothesis» (278, l. 2), but it can be demonstrated by geometers «from appropriate principles» (ivi, l. 19)

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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