1,720,968 research outputs found
RAMÓN LÓPEZ DE LUCIO - Vivienda colectiva, espacio público y ciudad. Evolución y crisis en el diseño de tejidos residenciales 1860-2010
Full text linkRAMÓN LÓPEZ DE LUCIOBuenos Aires: Nobuko, 2013, 342 págs.Idioma: castellan
CHRISTOPHER ALEXANDER - El modo atemporal de construir
Full text linkChristopher AlexanderEl modo atemporal de construirLogroño: Pepitas de calabaza, 2019. 532 pp. Softcover. Language: Spanish. 29,80 €ISBN: 978-84-1362-315-3Christopher AlexanderEl modo atemporal de construirLogroño: Pepitas de calabaza, 2019. 532 pp. Tapa blanda. Idioma: español. 29,80 €ISBN: 978-84-1362-315-
KJELL NILLSSON, STEPHAN PAULEIT, SIMON BELL, CARMEN AALBERS Y THOMAS SICK NIELSEN (eds.) - Peri-urban futures. Scenarios and models for land use change in Europe
Full text linkKJELL NILLSSON, STEPHAN PAULEIT, SIMON BELL, CARMEN AALBERS, THOMAS SICK NIELSEN (eds.) Peri-urban futures: Scenarios and models for land use change in Europe Springer, Berlín-Heidelberg, 2013, 453 pp. Tapa dura, 117,69 €Idioma: inglésISBN: 978-3-642-30528-3DOI: 10.1007/978-3-642-30529-0KJELL NILLSSON, STEPHAN PAULEIT, SIMON BELL, CARMEN AALBERS, THOMAS SICK NIELSEN (eds.) Peri-urban futures: Scenarios and models for land use change in Europe Springer, Berlín-Heidelberg, 2013, 453 pp. Tapa dura, 117,69 €Idioma: inglésISBN: 978-3-642-30528-3DOI: 10.1007/978-3-642-30529-
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
Preparación de ligandos di(pirazolil)-piridina con sustituyentes poliaromáticos como pinzas moleculares
Full text linkEn el presente trabajo se presenta la obtención de dos ligandos diferentes constituidos por un mismo núcleo central sustituido por diferentes hidrocarburos policíclicos aromáticos (PAHs). Concretamente se diseñaron estructuras dipirazolilpiridínicas unidas a pireno o derivados de pireno. Además, se completa con la obtención de dos complejos de zinc (II) con dichas piridinas actuando como ligando.
Las estructuras serán análogas entre sí variando el parámetro de longitud de las cadenas entre los pirazoles y los PAHs utilizando diferentes metodologías sintéticas incluyendo reacciones de Suzuki y Sonogashira. Respecto a los complejos de zinc serán todos ellos sintetizados por coordinación como quelatos. Finalmente, todos ellos se caracterizaron mediante diferentes técnicas.
De esta forma fue posible la síntesis de cuatro moléculas con variables geométricas adecuadas para la asociación con fullerenos de modo que puedan actuar como pinzas moleculares.The present work shows the obtention method of two different ligands with the same central form substituted with several polycyclic aromatic hydrocarbons (PAHs). To be precise, the dessigned structures consist of dipyrazolilpyridine bonded to pyrene or derivates of pyrene. Furthermore, two more Zinq complexes were obtained with pyridines acting as ligands.
The structures will share the same structure, changing the length of the chains connecting the pyrazoles with the PAHs by using different methods, including Suzuki and Sonogashira reactions. All Zinq complexes will be synthetized by chelate coordination. Finally, the resulting compounds will be characterizated with various techniques.
We managed to synthetise four molechules with an assortment of geometries adecuate for the association with fullerenes in such a way that they can act as molechular tweezers.Grado en Químic
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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