1,720,976 research outputs found
La chiesa battesimale di San Pietro in Pava San Giovanni d'Asso - SI - Italia): un'incontro di dati stratigrafici, studio territoriale e attestazioni d'archivio
No full textLo scavo del complesso archeologico di Pava (provincia di Siena) iniziato nel 2004, è giunto alla quinta campagna, ed è parte integrante del progetto di ampio respiro che coinvolge la Val d’Asso. Il complesso archeologico emerso per il momento è composto dalla struttura religiosa della pieve di S. Pietro in Pava, ricordata per la prima volta in un documento del 714 relativo alla disputa fra il vescovo di Siena e quello di Arezzo. I ritrovamenti hanno contribuito a definire parte della planimetria dell’edificio religioso principale e ne hanno messo in luce un’articolazione che contribuisce a delineare l’aspetto di un complesso ecclesiastico piut-tosto consistente. La struttura religiosa si completa di una grande area cimiteriale che al momento ha superato i 760 individui
Il popolamento tardoromano e altomedievale nella bassa valle dell’Ombrone. Progetto Carta Archeologica della Provincia di Grosseto
No full textIl contributo ha lo scopo presentare gli obiettivi, la strategia e i primi risultati del Progetto Carta Archeologica della Provincia di Grosseto. Dal 2000 l’attività di ricerca si è concentrata sulla bassa valle dell’Ombrone (GR). In questa sede presentiamo una chiave di lettura dei patterns del popolamento che caratterizzarono le dinamiche insediative del campione territoriale in questione tra IV e X secolo. Il contesto indagato si presta particolarmente ad un’analisi dei rapporti socio-economici tra area costiera e immediato entroterra, essendo caratterizzato dal passaggio della viabilità principale romana (Aurelia Vetus) e soprattutto dalla presenza della direttrice fluviale costa-interno costituita dal fiume Ombrone. Il record archeologico relativo al periodo tardo-romano si è avvalso inoltre di dati piuttosto rappresentativi acquisiti nel corso di rinvenimenti più o meno fortuiti degli anni ’80 e ’90 del secolo scorso. Il contributo delle nostre indagini consiste nell’opportunità di comprendere in maniera capillare forme insediative e relazioni inter-site per la fase compresa tra pieno IV e VI secolo. Tuttavia il dato più rilevante è rappresentato dalle acquisizioni relative al periodo compreso tra VII e X secolo, grazie soprattutto al rinvenimento dell’abitato altomedievale di Podere Serratone e alle indagini intra-site che hanno interessato il villaggio d’altura di Poggio Cavolo. L’analisi di questi due poli demici altomedievali, condotta grazie all’applicazione sistematica di nuove tecnologie (survey aereo, rilievi GPS, indagini geofisiche) oltre che ai tradizionali strumenti del field walking, e allo studio dei corredi ceramici che caratterizzano i due siti consente di delineare alcuni caratteri locali del popolamento altomedievale e delle forme insediative maggiormente rappresentate
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
The impact of frailty syndrome and risk scores on emergency cholecystectomy patients
No full textPURPOSE:
Cholecystectomy, which is one of the most common surgical procedures, is also performed in the emergency setting. A number of risk scores have been introduced in recent studies; moreover, over the last few years literature has focused on surgical patients with frailty syndrome. The aim of the present study is to evaluate whether frailty syndrome and the risk scores are correlated with morbidity, post-operative hospital stay and the ICU admission rate following emergency cholecystectomy.
METHODS:
Eighty-five consecutive patients of >65 years of age who underwent cholecystectomy were selected from 2306 emergency procedures for inclusion in the present study. The patients were assessed for frailty syndrome and their scores were calculated on the basis of chart review. Univariate analyses were performed to compare severe frailty patients to intermediate frailty and robust patients. ROC and logistic regression analyses were performed with the end-points of morbidity, hospital stay and ICU admission.
RESULTS:
In addition to having worse ASA, inflammatory and risk values than robust patients, frailty syndrome patients also had higher rates of morbidity and ICU admission and longer hospitalization periods. A logistic regression analysis showed that the P-Possum was independently correlated with morbidity. Frailty and open surgery were independently correlated with longer hospitalization, whereas ICU admission was correlated with worse ASA and P-Possum values.
CONCLUSIONS:
Frailty syndrome significantly impacts the length of hospitalization in patients undergoing emergency cholecystectomy. Although the ORs were limited, the P-Possum value was independently associated with the outcome
Colonic perforations caused by migrated plastic biliary stents
No full textPlastic biliary stent migration to the colon is an extremely rare event: as of 2014, only 25 reports exist in the English literature. All these cases dealt with straight plastic stents which were inserted for both benign and malignant diseases of the biliary tree and pancreas (post-cholecystectomy bile leakage and pancreatic adenocarcinoma amongst all)
Surgical strategies for duodenal GISTs: benefits and limitations of minimal resections
Full text linkComment on
Conservative surgery vs. duodeneopancreatectomy in primary duodenal gastrointestinal stromal tumors (GIST): a retrospective review of 114 patients from the French sarcoma group (FSG). [Eur J Surg Oncol. 2014
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