1,721,167 research outputs found
State-of-the-Art in Orthodontics and Gnathology
No full textIn recent years, several novel diagnostic and treatment modalities have been introduced in orthodontics and temporomandibular disorders [...
Sull’attuazione degli obblighi internazionali di risposta e ripresa a fronte della pandemia di Covid-19: una prospettiva italiana
Full text linkThis work aims at offering a critical analysis of how Italy, as one of the most early-affected countries, has responded to and is currently recovering from the Covid-19 pandemic, in the framework
of international and European obligations applicable to CBRN events at large. To this end, this
article will first examine the main obligations concerning «response» to and «recovery» from a
pandemic event, as stemming from relevant international and European law instruments. Then,
it will look at how these obligations have been implemented by Italian central and local authorities vis-à-vis the Covid-19 pandemic, while also offering some conclusive remarks on the legal
meaning of the «disaster management cycle»
Analisi delle prestazioni di un sistema passivo di asportazione del calore tramite il codice RELAP 5
No full textIl presente articolo descrive l'attività sperimentale e di simulazione svolta nell'ambito di una ricerca, in wrso di
svolgimento presso il Dipartimento di Ingegneria Nucleare e Conversioni di Energia (DINCE) dell'Università di Roma "La
Sapienza", su un sistema innovativo di refrigerazione di sicurezza da impiegare nell'industria di processo. Tale sistema è
finalizzato ad asportare potenza termica da reattori chimici o nucleari in cui si manifestino fenomeni di divergenza della
potenza generata e delle condizioni termodinamiche, senza l'impiego di alcuna fornitura di energia esterna e senza il rilascio
nell'ambiente o in altri recipienti del fluido di processo.
L' impianto sperimentale NICOLE, progettato e realizzato dal DINCE, è installato in un edificio disponibile presso i
laboratori dell'ENEA-CASACCIA. Viene presentata la schematizzazione dell'impianto sperimentale, i risultati delle analisi di
simulazione svolte con il codice di calcolo RELAP 5 ed il con6onto con i dati sperimentali. Le analisi di simulazione e Ic
numerose prove sperimentali effettuate, hanno dimostrato come il sistema di sicurezza proposto sia in grado di far 6onte con
successo a incidenti caratterizzati da tempistiche molto differenti, da pochi minuti a diverse ore
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
Selection Dynamic of Escherichia Coli host in M13 Combinatorial Peptide Phage Display LIbraries
No full textPhage display relies on an iterative cycle of selection and amplification of random combinatorial libraries to enrich the initial population of those peptides that satisfy a priori chosen criteria. The effectiveness of any phage display protocol depends directly on library amino acid sequence diversity and the strength of the selection procedure. In this study we monitored the dynamics of the selective pressure exerted by the host organism on a random peptide library in the absence of any additional selection pressure. The results indicate that sequence censorship exerted by Escherichia coli dramatically reduces library diversity and can significantly impair phage display effectiveness
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
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