102,559 research outputs found
Effect of Canal Length and Curvature on Working Length Alteration with WaveOne Reciprocating Files
No full textThe article “Effect of Canal Length and Curvature on Working Length Alteration with WaveOne Reciprocating Files” by Elio Berutti, Giorgio Chiandussi, Davide Salvatore Paolino, Nicola Scotti, Giuseppe Cantatore, Arnaldo Castellucci and Damiano Pasqualini (J Endod 37[12]:1687–90; 2011] should have included this statement in the author information section: “Giuseppe Cantatore, Arnaldo Castellucci, and Elio Berutti declare that they have financial involvement (patent licensing arrangements) with Dentsply Maillefer with direct financial interest in the materials discussed in this article.” In addition, Dentsply provided some of the instruments used in this study." The authors regret this omission
Bibliografia di informatica umanistica
No full textNel 1983 si costituisce a Roma, Università "La Sapienza", sotto la guida dal prof. Tito Orlandi, il Gruppo di Ricerca Informatica e Discipline Umanistiche. Nel 1986 viene annunciato il progetto di realizzare una Bibliografia che rendesse conto dello stato dell'arte di un'area fortemente interdisciplinare e innovativa quale l'Informatica Umanistica, ora meglio conosciuta come Digital Humanities. Al gruppo, coordinato da Giovanni Adamo, partecipano (in ordine cronologico di adesione al progetto): G. Gigliozzi, R. Mordenti, G. Azzena, M. Tascio, A. Camplani, I. Di Stefano Manzella, A. M. Valente, R. Duranti, N. Tangari, A. M. Paci, P. Castellucci. Vengono, a diverso titolo, coinvolti anche P. Moscati, F. M. Bischoff, M. Menna, G. Negrini. L'esito del lavoro di ricerca (svolto con continue verifiche e riunioni collegiali) è la Bibliografia, pubblicata dopo 8 anni di lavoro
Kosanke G, Castellucci M, Kaufmann P, Mironov VA. Related Articles, Links Branching patterns of human placental villous trees: perspectives of topological analysis
No full textDove finisce il racconto? Ipertesto digitale e paratesto strutturalista
No full textLe nuove modalità di scrittura e lettura in Rete hanno determinato un radicale ripensamento non solo dei ruoli di autore e lettore, ma anche delle funzioni di scrittura creativa e saggistica. In particolare il concetto di ipertesto ha portato a un superamento dei tradizionali confini demarcativi. Se nell’era pre-Web erano ben delineati compiti, identità, valori, e semmai si attribuivano a specifici spazi liminali (come il paratesto) le possibilità di sconfinamento tra autore e lettore, tra creatività e saggistica, nuove funzioni si aprono invece adesso con una testualità concepita sempre più come iper, connessa a livello globale, in tempo reale, social. Sin dalle prime formulazioni dell’ipertesto (con Ted Nelson, negli anni Sessanta) e successivamente con le analisi formulate dagli studiosi dell’area denominata Digital Humanities (ad esempio George Peter Landow, qui considerato) sono stati esplorati nuovi territori, nuove possibilità espressive anche per il lettore comune, per “l’utente”.Where does the tale end? Digital Hypertext and Structuralist Paratext · The Age of the Net has determined a radical change as far as the dialogue Author/Reader is concerned. If the Author, in the past, had always been used to writing in “liminal” spaces – as the paratext is – seeking for a “direct contact” with the Reader, now the Reader too has developed a new identity far beyond the traditional one. Nowadays, not only the Reader and the Author meet face to face in the hyper-connected and “social” space of writing, but the Reader himself wants to tell stories. Ted Nelson had envisioned this scenario since 1960 with the project of the hypertext. The critical theorist G. P. Landow rightly interprets the hypertext as a true revolution, an epistemic shift, opening new territories both to scholarly literature and fictional stories
Money for nothing? Salary effects on performance of high-status NBA players
No full textIn this paper we examine the relationship between the quality of the resources obtained in
exchange relationships, the status of the exchange partner, and the money paid to obtain these
resources. We study both the determinants of the money paid to acquire resources and the
consequences of money paid on quality, thereby developing four hypotheses. First, the money
paid to obtain resources from an exchange partner is positively related to the past quality
demonstrated by that exchange partner. Second, the money paid to obtain resources from an
exchange partner is positively related to the status of that exchange partner. Third, as status of
an exchange partner increases, the amount of money paid to obtain resources from an
exchange partner will be less dependent on the past quality of that partner. Finally, the effect
of money paid to obtain resources from an exchange partner on the subsequent quality of
those resources will decrease as the status of the exchange partners increases. We use
longitudinal data on all basketball players in the National Basketball Association (NBA)
during the period 1989-2005 to examine the relationship between status, quality, and salary.
The results support our hypotheses. Specifically, we find that the salary paid to NBA players
is positively associated with their past performance and their status. However, the effect of
past performance on the salary paid to NBA players decreases as the status of the player
increases. Finally, the effect of salary on a player’s performance decreases as the player’s
status increases
What’s in it for them? Advantages of Higher Status Partners in Exchange Relationships
No full textThis article explores the motivations that high-status firms have to enter exchange relationships with lower-status partners. We argue that high-status firms can secure greater effort from lower-status partners and that the amount of effort will be proportional to their status advantage over these partners. We further propose that such effort will translate to increased performance by mediating the negative consequences of affiliations with lower-status partners. This increase in performance constitutes the motivation for high-status firms to enter exchange relationships with lower-status partners. Findings using data on Formula One racing support our argument. © 2010 Academy of Management Journal
Editoria e letteratura nel percorso critico di Gian Carlo Ferretti
No full textRitratto dello storico dell'editoria G. C. Ferrett
The age-productivity gradient: evidence from a sample of F1 driver
No full textEstimating the effect of aging on productivity requires clean measures of productivity. Additionally, one needs to control for unobserved heterogeneity at the worker, firm and worker/firm level, to account for the role of experience and to correct for selection bias. We tackle these issues exploiting a panel of Gran Prix Formula One drivers, which provides a unique setting to single out the data requirements needed to credibly estimate the effect of age on productivity. Results robust to the inclusion of worker, firm and match effects show that the age-productivity link has an inverted U-shape profile with a peak at the age of 30-32. The use of repeated cross-sections of individuals also produces consistent results provided that cohort effects are properly accounted for. Relying on team-average measures of productivity makes instead inference harder
Structured Kernel-based learning for the frame labeling over Italian texts
No full textIn this paper two systems participating to the Evalita Frame Labeling over Italian Texts challenge are presented. The first one, i.e. the SVM-SPTK system, implements the Smoothed Partial Tree Kernel that models semantic roles by implicitly combining syntactic and lexical information of annotated examples. The second one, i.e. the SVM-HMM system, realizes a flexible approach based on the Markovian formulation of the SVM learning algorithm. In the challenge, the SVM-SPTK system obtains state-of-the-art results in almost all tasks. Performances of the SVM-HMM system are interesting too, i.e. the second best scores in the Frame Prediction and Argument Classification tasks, especially considering it does not rely on a full syntactic parsing. © Springer-Verlag Berlin Heidelberg 2013
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