1,721,135 research outputs found
Vertebrate-fossil rich plattenkalk of Pietraroia (Southern Appennines, Italy). Evidence for submarine channel depositional setting
No full textPietraroia plattenkalk are richly fossiliferous, fine-grained cherty limestones, from the Matese Mountains - Southern Apennines, Italy, and are well known for the exceptional state of preservation of the fossils. Based on detailed thaphonomical analises, fossil assemblage recognised in the Pietraroia plattenkalk represents a taphocoenosis and an obruption deposit in the sense that most (if not all) of the animals were transported to an accumulation site from other places. A likely scenario could be represented by a depressed area in which gravitative currents carrying animals from above, capturing both the alive and the dead, deposited them into accumulation sites placed well below the original place where they lived and/or died.The Pietraroia plattenkalk sequences, on the basis of sedimentological analises and geometrical reconstructions, are here interpreted as abandon deposits of a submarine channel “Pietraroia Channel” documenting a major transgressive event. Transgression was associated with the development of suboxic to anoxic conditions at the sea-floor which favoured the preservation of fossils as well as the deposition of coprolith-rich and bituminous layers found within the plattenkalk sequences.A peculiar paleogeographic and paleotopographic setting, strongly controlled by local tectonic, saw the contiguity of wide emerged areas with a relatively deep-water channelised area where fossiliferous plattenkalk sequences were deposited
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
La libertà democratica oltre la necessità dello sviluppo
No full textIl testo affronta il rapporto tra libertà, democrazia e sviluppo secondo una correlazione che intende sottrarlo al determinismo che sembra imposto dalla globalizzazione economia e traccia il quadro di possibilità storiche che fanno perno sulla realizzazione della persona nella ricchezza delle sue componenti
First report of the genus Cladocyclus in the Lower Cretaceous of Pietraroja (Southern Italy).
No full textGyanecological and obstetrics audit at G & O Emergency Department
No full textThe present study takes into account only the patients that are sent home because their conditi ons do not require emergency hospitali
zation in a rder to try to understand the reasons why a woman seeks emergency treatment at a G&O emergency service
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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