1,721,437 research outputs found
Morfologia e morfometria del settore ionico del Golfo di Taranto.
Full text linkIl versante Ionico del Golfo di Taranto è caratterizzato dalla presenza di alti strutturali e bacini che
rappresentano l’espressione morfologica di sistemi di faglie pleistoceniche transpressive. La dorsale di
Amendolara si estende per 45 Km in direzione N130°E, ed è caratterizzato dalla presenza di tre alti
batimetrici minori (denominati Amendolara, Rossano e Cariati). Verso NE, la dorsale di Capo Spulico si
estende per 40 Km in direzione !N115°E.
Durante la Campagna Oceanografica “Teatioca” sono stati acquisiti 1100Km2 di dati batimetrici
multibeam e profili sismici monocanale ad alta (Sparker) ed altissima risoluzione (Subbottom Chirp).
L’analisi integrata dei nuovi dati ha consentito di ottenere una sintesi morfostrutturale preliminare dell’area
sud-orientale del Golfo di Taranto [Santoro et al., 2012].
L’insieme dei dati morfometrici evidenzia un ruolo chiave nell’attività traspressiva della faglia che borda
a SW la dorsale di Amendolara, in quanto la regolarità dei pendii rivolti a S è legata alla deformazione e
sollevamento dei versanti, che tende a superare l’effetto dei processi erosivi (versanti a controllo morfostrutturale).
Il processo di basculamento guidato dall’azione della faglia sembra essere all’originedei processi
responsabili dell’erosione gravitazionale canalizzata sui pendii esposti a nord (versanti a controllo morfosedimentario).
Sette ordini di terrazzi sono stati riconosciuti sul top del Banco di Amendolara, attraverso tecniche di
analisi dei picchi nel diagramma di distribuzione delle quote [Passaro et al., 2011]. Tale dato e le statistiche
sui profili estratti dal DTM testimoniano la presenza di tassi differenziali di sollevamento ed un complessivo
tilt (verso E) del settore frontale ionico dell’Appennino Meridionale, in accordo con quanto suggerito in
letteratura [Ferranti et al., 2009].
Bibliografia
Ferranti, L., Santoro, E., Mazzella, M.E., Monaco, C., Morelli, D., (2009). Active transpression in the
northern Calabria Apennines, southern Italy. Tectonophysics, 476 (1-2), 226-251.
Passaro, S., Ferranti, L., de Alteriis, G., (2011). The use of high resolution elevation histograms for mapping
submerged terraces: a test from the Eastern Tyrrhenian Sea and the Eastern Atlantic Ocean. Quat. Int.,
232, 1-2, 238-249.
Santoro, E., Ferranti, L., Passaro, S., Burrato, P., Morelli, D., (2012). Morphometric analysis in the offshore
of the southern Taranto Gulf: unveiling the structures controlling the Late Pleistocene-Holocene
bathymetric evolution. Rend. On. Soc. Geol. It., 21 (2), 1132-1135
Esperimento TRADE: sistema di accoppiamento fra acceleratore di protone e reattore TRIGA
No full textUno dei nodi cruciali relativi allo sviluppo dell'energia nucleare è storicamente rappresentato dal problema dei rifiuti radioattivi ad alta radiotossicità. La strada della trasmutazione di questi ultimi in elementi a radiotossicità più bassa passa per i grandi progetti ADS (Accelerator Driven System), di cui TRADE rappresenta un esperimento pilota di rilevanza internazionale
The lived experience of fathers of preterm infants in the Neonatal Intensive Care Unit: A systematic review of qualitative studies
No full textAims and objectives: To systematically review the experience of fathers of preterm infants hospitalised in the Neonatal Intensive Care Unit. Background: Family-centred care is more and more acknowledged in Neonatal Intensive Care Units, advocating for active engagement of both parents in the care journey. Nonetheless, fathers' Neonatal Intensive Care Unit experience has received limited research attention. Design: Systematic review of qualitative studies. Methods: Four electronic databases (CINHAL, ISI Web of Science, PubMed, Scopus) were explored and studies published between 2000-2014 were included. Preferred Reporting Item for Systematic Reviews and Meta-analysis (PRISMA) and Joanna Briggs Institute (JBI) Critical Appraisal Tool for Qualitative Studies guidelines were adopted. Key themes were extracted and synthesised. Results: Five main themes resuming fathers' experience of preterm birth and Neonatal Intensive Care Unit stay were identified from 14 studies. Themes were: emotional roller-coaster, paternal needs, coping strategies, self-representation and caregiving engagement. These dimensions were found to be dynamically shaped across three critical turning points: preterm birth, Neonatal Intensive Care Unit stay and at home. Conclusions: Neonatal Intensive Care Unit fathers of preterm infants experience ambivalence, a set of different needs and coping strategies. They modify their self-representations along the Neonatal Intensive Care Unit journey and needs specific nursing support and intervention to sustain caregiving engagement and transition to parenthood. Relevance to clinical practice: A systematic and deepened understanding of preterms' fathers lived experience in Neonatal Intensive Care Unit would be helpful to inform nursing practice. Specific action priorities are suggested within the frame of family-centred care
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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