1,720,963 research outputs found
Creative practices and reflexive musical interaction with an adolescent with autism
No full textThis chapter presents the results of two studies on the interaction between a child with autism and creative musical practices in the context of music lessons. Autism, a developmental disorder of neurobiological causes, is defined according to specific criteria, such as impairment in social interaction, in verbal and nonverbal communication, and the presence of restricted, repetitive and stereotyped behavior patterns, interests or activities (Schwartzman, 2011). Regarding music education and education as a whole, the impairment in social interaction can negatively interfere in the learning process. Parallel to social interaction is musical interaction, vital for music education. In the first study, musical improvisation was part of the learning process of the child with autism. In this context, musical improvisation is understood as a creative process. Furthermore, it has multiple meanings, behaviors and practices and it relies on the socialcultural context in which the individual is found. This creative musical practice allows the child to bring contents, practices and meanings from their contexts and these could be re-signified by the teacher generating new learning. The second study presents an analysis of the musical interaction of children with autism mediated by the MIROR-Impro, a system that promotes reflexive musical interaction. The use of the MIROR-Impro in music lessons with children with autism favors active participation, as well as autonomous learning by the student. Musical interaction was analyzed from the perspective of reflexive interaction (Addessi, 2015) and the Sounds of Intent framework of musical developmental (Ockelford, 2013). The music teacher will be able to guide his student in the best way if he understands how musical interaction works during music lessons, providing favorable conditions for this learning, respecting each individual in their characteristics
Creative Practice and Refexive Musical Interaction with an Adolescent with Autism
No full textIn this chapter we explore the process of musical interaction of adolescent with Autistic Spectrum Disorder, mediated by a specific technology: the MIROR-Impro, an interactive reflexive imusical system
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
Late Hercynian polymetallic vein-type base-metal mineralization in the Iberian Pyrite Belt: fluid-inclusion and stable-isotope geochemistry (S-O-H-Cl)
No full textLate Variscan vein-type mineralization in the Iberian Pyrite Belt, related to the rejuvenation of pre-existing fractures during late Variscan extensional tectonism, comprises pyrite-chalcopyrite, quartz-galena-sphalerite, quartz-stibnite-arsenopyrite, quartz-pyrite, quartz-cassiterite-scheelite, fluorite-galena-sphalerite-chalcopyrite, and quartz-manganese oxide mineral assemblages. Studies of fluid inclusions in quartz, stibnite, and barite as well as the sulfur isotopic compositions of stibnite, galena, and barite from three occurrences in the central part of the Iberian Pyrite Belt reveal compelling evidence for there having been different sources of sulfur and depositional conditions. Quartz-stibnite mineralization formed at temperatures of about 200 degreesC from fluids which had undergone two-phase separation during ascent. Antimony and sulfide are most probably derived by alteration of a deeper lying, volcanic-hosted massive sulfide mineralization, as indicated by delta(34)S signatures from -1.45 to -2.74parts per thousand. Sub-critical phase separation of the fluid caused extreme fractionation of chlorine isotopes (delta(37)Cl between -1.8 and 3.2parts per thousand), which correlates with a fractionation of the Cl/Br ratios. The source of another high-salinity fluid trapped in inclusions in late-stage quartz from quartz-stibnite veins remains unclear. By contrast, quartz-galena veins derived sulfide (and metals?) by alteration of a sedimentary source, most likely shale-hosted massive sulfides. The delta(34)S values in galena from the two study sites vary between -15.42 and -19.04parts per thousand. Barite which is associated with galena has significantly different delta(34)S values (-0.2 to 6.44parts per thousand) and is assumed to have formed by mixing of the ascending fluids with meteoric water
Ancient sub-seafloor alteration of basaltic andesites of the Ongeluk Formation, South Africa: implications for the chemistry of Paleoproterozoic seawater
No full textBasaltic andesites of the Ongeluk Formation, Transvaal Supergroup in Griqualand West constitute part of a large flood volcanic province that extruded at ca. 2.22 Ga onto the partly submerged Kaapvaal Craton. Pods and short veins of megaquartz, with albite, epidote and traces of calcite and Cu-Ni-Co sulphides are closely associated with beds and pods of jasper and chert that are products of low-temperature seafloor alteration. Characterization of the megaquartz pods and veins yields evidence for an origin in a "passive" seafloor alteration regime. Fluid inclusion studies suggest the involvement of two aqueous fluid end members, one NaCl-dominated with salinity similar to modern seawater, the other Ca-dominated and with distinctly elevated salinity. The chemical composition of both fluids is akin to that of seawater, modified in its composition by interaction with the volcanic host rock. The low salinity fluid appears only little affected by fluid-rock interaction processes; the composition of the more saline Ca-rich fluid is more distinctly modified. The chemical composition of the two fluids has important implications for our understanding of the composition of ocean water during the Paleoproterozoic Era. Cl/Br ratios, widely regarded as being conservative in hydrothermal solutions, are significantly below those of present-day seawater, but remarkably similar to that predicted for Archean seawater. This observation suggests that Paleoproterozoic seawater was still buffered by vent fluids, and lacked sufficient organic matter to fractionate Cl from Br. (C) 2003 Elsevier B.V All rights reserved
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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