1,721,746 research outputs found
The bi-embeddability relation for finitely generated groups II
No full textWe study the isomorphism and bi-embeddability relations on the spaces of Kazhdan groups and finitely generated simple groups.The final publication is available at Springer via http://dx.doi.org/10.1007/s00153-015-0455-6.Peer reviewe
Thomas-Simon Gueullette, Contes
Full text linkCes trois volumes de la « Bibliothèque des Génies et des Fées » constituent la première édition critique des recueils de contes de Thomas-Simon Gueullette : vol. 1 : Les Soirées Bretonnes, édition critique de Christelle Bahier-Porte et Les Mille et Un Quarts d’Heure, Contes tartares, édition critique de Carmen Ramirez ; vol. 2 : Les Aventures merveilleuses du mandarin Fum-Hoam, Contes Chinois, édition critique de Jean-François Perrin et Les Sultanes de Guzarate, ou les Songes des hommes évei..
DAVID THOMAS, SIMON FOWLER, and VALERIE JOHNSON, The Silence of the Archive
No full textThe Silence of the Archive. David Thomas, Simon Fowler, and Valerie Johnson. Chicago: Neal-Schuman / American Library Association, 2017. xxvi, 187 pp. ISBN 978-0-8389-1640-
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
[Les mille [et] un quart-d'heure : contes tartares : tome II]
No full textSegún Palau, IX, 169957, el autor es el francés Thomas Simon GueulletteTít. tomado de la cabeza del texto y mención de tomo tomado de pie de pag.Posiblemente imp. en el siglo XVIIISign.: A-B\p8\s, C-Z\p4/p8\s, 2A\p8\s, 2B-2C\p4\
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
Incorporating molecular flexibility and conformational variability into crystal structure prediction
No full textThe ability to predict the properties of a crystal structure before any empirical analysis or laboratory work has commenced offers the opportunity for vast reductions in research and development costs for new products. This research focuses on a novel methodology to incorporate molecular flxibility into crystal structure prediction (CSP).Chapter 3: The quantification of the effect of incorporating molecular flexibility and a revised Williams99 potential in the lattice energy minimisation finds that 5.5% and 6.3% more observed crystal structure matches, respectively, lie within 1kJ mol-1 of the calculated global energy minimum structure.Chapter 4: A novel method is presented that simultaneously samples the molecularconformational space and the unit cell parameters when generating crystal structures where the former employs molecular principal displacements. This method was used for one test molecule that possesses 3 known polymorphs where only 1 is found when a standard CSP approach is used; this method now locates all 3 polymorphs.Chapter 5: Presents a scientifically robust and computationally efficient method for finding a set of principal displacements and their corresponding contributions for converting one molecular conformation into another.Chapter 6: The molecular strain energy induced by crystal packing forces was calculated for 224 molecules. It was found that a maximum number of principal displacements up to a force constant value of 0:084 mDyneA-1 were required to accurately reproduce the in-crystal conformation from its gas phase conformer for approximately 95% of cases.Chapters 7 & 8: Present two CSP case studies. The first was a sixth blind test molecule that failed to be predicted when using a rigid molecule search procedure coupled with a flexible molecule lattice energy minimisation and hence was used as motivation to implement the methodology presented in Chapter 4 on the second case study of a novel herbicide molecule.</p
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