1,721,046 research outputs found
La calprotectina fecale
No full textCalprotectin is a calcium and zinc binding protein derived from neutrophils and monocytes. It is a valuable marker in the diagnosis, monitoring and determining the prognosis of commonly encountered gastroenterological conditions, but mainly gastrointestinal cancer and chronic inflammatory bowel diseases. Faecal calprotectin, in particular, has been regarded as a promising marker of gastrointestinal cancer, but available data are still conflicting. On the contrary its usefulness in the diagnosis and follow-up of Crohn's disease and, particularly, ulcerative colitis has been confirmed in several studies
Condoni e residenza fiscale delle persone fisiche
No full textCon la sentenza n. 132 del 2009, la Commissione tributaria regionale della Puglia ha affermato, tra l’altro, che il cd. condono tombale estende i propri effetti anche ai redditi prodotti all’estero, precludendone così l’accertamento, senza tuttavia considerare, a monte, che il perfezionamento del condono impediva la proroga dei termini di accertamento, con conseguente – e per ciò stessa – illegittimità dell’atto impositivo notificato oltre l’ordinario termine decadenziale. Ha altresì riconosciuto che, ai fini dell’individuazione della residenza fiscale, il domicilio può essere accertato anche avvalendosi di presunzioni gravi, precise e concordanti, pur interpretando quest’ultimo requisito in modo non condivisibile.Nessuna valutazione è stata invece fatta, quanto meno esplicitamente, sul requisito temporale dei 183 giorni, quale elemento costitutivo autonomo della nozione di residenza fiscale, e sui limiti all’inversione dell’onere della prova di cui all’art. 2, comma 2-bis, del T.U.I.R
Perfusion Pressure and the Papillary Perfusion Index in a Non-glaucomatous population
No full textLe prove clinico-sperimentali hanno messo in luce che nel meccanismo patogenetico del danno al nervo ottico nel glaucoma, l'equilibrio tra la pressione intraoculare e la pressione sistemica rappresenta un parametro importante. In una popolazione non glaucomatosa, selezionata con pressione intraoculare normale e valori sia normali che alti della pressione sistemica, è stata valutata sia la distribuzione della pressione di perfusione che l'indice di perfusione papillare.
In rapporto alla pressione di perfusione, i due gruppi di soggetti non glaucomatosi mantengono una chiara distinzione in relazione principalmente al valore della pressione sistemica, mentre l'indice di perfusione papillare tende ad unificare entrambi i gruppi in una popolazione più omogenea non glaucomatosa. Si è concluso che l'indice di perfusione papillare è clinicamente più significativo della correlazione tra la pressione oculare e quella sistemica e può risultare utile nella distinzione degli occhi normali ed emodinamicamente non ben equilibrati
L’indice di perfusione papillare, paramento per la valutazione di un fattore di rischio nell'ipertensione oculare
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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
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