1,722,017 research outputs found
Roux, J.-C. — L'Amazonie péruvienne, un Eldorado dévoré par la forêt, 1821-1910.
No full textErikson Philippe. Roux, J.-C. — L'Amazonie péruvienne, un Eldorado dévoré par la forêt, 1821-1910.. In: Journal de la Société des Américanistes. Tome 83, 1997. pp. 359-361
Lamy B., Roux J. C. — Espace et société traditionnelle en zone rurale de colonisation
No full textW. A. Lamy B., Roux J. C. — Espace et société traditionnelle en zone rurale de colonisation. In: Population, 26ᵉ année, n°1, 1971. pp. 175-176
Bauer (G.) et Roux ( J. M.). — La rurbanisation ou la ville éparpillée.
No full textGeoffroy Bernard. Bauer (G.) et Roux ( J. M.). — La rurbanisation ou la ville éparpillée.. In: Norois, n°94, Avril-Juin 1977. pp. 325-326
Théatre du monde ...
No full textEncabezamento tomado de "Bibliographie Française"Sign.: [ ]\p2\s, A-O\p2\s, P\p10\sAntepPort. con grab. xilSign.: [ ], A-O, PPort. con grav. xi
Ionization and speciation of water in silicate melts
No full textWater in silicate melts is commonly assumed to take the form of molecular water (H2Om) and hydroxyl groups (OH), the latter bounded to network formers (T) as T-OH groups. Although free hydroxyls (OH-) were only recently ascertained in depolymerized melts (Xue and Kanzaki, 2004), the amphoteric behavior of water, was already suggested long ago (Fraser, 1977) and preliminarily modelled considering redox data (Moretti, 2005). However, autoprotolysis of water has not been assessed in silicate melts hitherto, because of the rather complex nature of such a solvent. Here, a simple theoretical frame is developed based on the extended two-sublattice hypothesis of Temkin. The theory accounts for acid-base properties of the melt phase, and reconciles differing notations. An independent proof of our appraisal is given by an algorithmic approach to chemical equilibria between O and H in polymeric silicate melts. The assessment of the ionization constant of water in melts can explain the conditions at which precipitation of hydrous minerals can occur. Because of the amphoteric behavior, melt polymerization can be affected less than that normally perceived and assumed, depending on bulk composition. This has implications for the redox behavior, which is strictly connected to melt acid-base properties, hence polymerization. These connections must be accounted for when modelling magmatic equilibria.
REFERENCES:
FRASER DG (1977) In: Thermodynamics in Geology (D.G. Fraser, ed.), D. Reidel Pub. Co.
MORETTI R. (2005) Ann. Geophysics, 48, 503-608.
XUE, X. AND KANZAKI, M. (2004) Geochim. Cosmochim. Acta, 68, 5027-5057
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Full text linkWe 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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