1,721,033 research outputs found
Status of the Kloe-2 experiment at daΦne
No full textThe KLOE-2 experiment at the INFN Laboratori Nazionali di Frascati (LNF) is currently taking data at the upgraded e+e− DAΦNE collider, collecting until now an integrated luminosity of more than 4 fb−1, with the aim of reaching 5 fb−1 for the end of March 2018. The KLOE detector undergone several upgrades including an innovative “state of the art” cylindrical GEM detector, the Inner Tracker, to improve its vertex reconstruction capabilities near the interaction region, and a pair of electron/positron taggers to study the gamma-gamma interactions. An overview of the KLOE-2 experiment will be given including present status and achievements together with future prospects
Indirect search for Dark Matter towards the Galactic Centre with the ANTARES submarine Cherenkov neutrino telescope
Full text linkIn recent years Dark Matter has become one of the major research topics in astrophysics. In one of the most popular scenario the Dark Matter is composed of WIMPs. These particles are present in massive astrophysical onbjects like the Galactic Centre and here they self-annihilate producing Standard Model particles that eventually decay producing neutrinos. In this thesis work we performed an indirect search for Dark Matter trying to detect these neutrinos with the aim of the ANTARES submarine Cherenkov neutrino telescope. The analysis and the results of this research are here presented
L'eredità dell'Europa e la sua cura
No full textIl presente contributo muove dal riconoscimento della stanchezza come aspetto caratterizzante della moderna civiltà europea. Husserl la indicava già come il rischio principale per l'Europa nella Crisi delle scienze europee e la Fenomenologia trascendentale. Si intende qui mostrare che questa stanchezza/debolezza dell'Europa è radicata nella sua dimensione costitutivamente apolitica. La tensione ingovernabile dei mercati e le dinamiche complesse della finanza globalizzata mascherano spesso la durezza e la gravità della situazione presente
Status and first results from the ARCA and ORCA lines of the KM3NeT experiment
Full text linkKM3NeT is a network of submarine Cherenkov neutrino telescopes under construction in two different sites in the Mediterranean Sea [1]. The detector at the Italian site, close to the Sicilian coast and named ARCA, will be devoted to the detection of high-energy astrophysical neutrinos coming from sources in the Universe, while the detector at the French site, in the Toulon bay and named ORCA, will exploit atmospheric neutrinos to determine the neutrino mass hierarchy. The telescopes are an array of flexible strings anchored to the sea floor and held close to vertical by submerged buoys. The strings are instrumented with digital optical modules hosted within pressure-resistant glass spheres, each housing 31 3” photomultipliers tubes and the readout electronics. The geometry of the detectors has been adapted to their physics goals. The first calibrations and results of ARCA and ORCA are presented
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
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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