1,721,016 research outputs found
Cammini di uomini, cammini di animali. Transumanze, Pastoralismi e Patrimoni Bio-Culturali
No full textDebattistiite, Ag9Hg0.5As6S12Te2, a new Te-bearing sulfosalt from Lengenbach quarry, Binn valley, Switzerland: description and crystal structure
No full text
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
Equation of state of Fe3+-bearing phase-X
No full textWe investigated the high-pressure behaviour of Fe3+-bearing hydrous phase-X, (K1.307Na0.015)(Mg1.504Fe3+0.373
Al0.053Ti0.0044 )Si2O7H0.36, up to 34 GPa at room temperature by synchrotron X-ray powder diffraction. The lattice parameters behave anisotropically, with the [001] direction stiffer than [100]. In the 10-4 to 22 GPa pressure range, the axial bulk moduli are K0a = 112(3) GPa and K0 = 4, and K0c = 158(2) GPa and K0 = 4, and the anisotropy of the lattice parameters is b0c:b0a = 0.71:1.The cell volumes are fitted by a second-order Birch–Murnaghan equation of state giving a bulk modulus of K0 = 127(1) GPa and K0 = 4 in the same pressure range. After 22 GPa, a discontinuity in volume and lattice parameters can be recognized. Sample did not become amorphous up to 34 GPa. The coupled substitution K , Mg = [] , Fe3+ has only a limited influence on the bulk modulus and structural stability of phase-X
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
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
Restituzioni e processi partecipativi. Problemi metodologici circa il ri-tornare sul campo
No full text“Ri-tornare” come ringraziamento e domanda che rilancia e rinvia a nuove interlocuzioni. C’è nella circolarità delle etnografie un patto che si rinnova sempre e che permette la realizzazione di quella intimità etnografica necessaria al dischiudersi nell’incontro e alla mutua comprensione. Ma ad un ritornare come “restituzione”, come dono e confronto, oggi nel lavoro etnografico si affianca un ritornare diverso, che non presuppone più una iniziale separazione che si può ricomporre nell’unità (o circolarità) del confronto, ma nasce da una “condivisione”, di prospettive, di progetto. Un guardare (e un agire) “insieme”, un processo che è ancor più visibile nel campo dei patrimoni culturali dove assistiamo ad un nuovo protagonismo di territori e soggetti locali. I saggi raccolti nel volume partono da questo mutamento di prospettiva che caratterizza l’antropologia dei patrimoni culturali, materiali e immateriali, dalla restituzione alla condivisione; essi partono da campi, approcci e metodologie talora diversi, ma tutti si interrogano in merito alla circolarità del lavoro etnografico, pensando alla interpretazione e alla scrittura dei dati individuati sul campo come risultato pubblico atteso del mestiere di antropologo, come dono circolare dell’incontro tra mondi, ma anche come impegno, engagement con comunità e istituzioni locali frutto di investimenti professionali o di natura etica. Dinamica e ambivalente è la relazione che sempre si tesse nei campi etnografici e che rappresenta oggi sia un’occasione di sguardo auto-riflessivo per gli studi demoetnoantropologici, che un banco di prova per l’antropologia applicata, la deontologia e la postura del ricercatore, la pertinenza e l’incidenza del ruolo dell’antropologia nei territori e presso le comunità impegnate nella relazione etnografica
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