1,721,049 research outputs found
BES TESTTM accuracy evaluation by means of 3D-printed phantoms
No full textThe BES TEST (TM) (Bone Elastic Structure Test), is a recently developed software medical device that detects pathological changes of bone trabecular architecture by measuring its elastic characteristics, known to be directly related to its resistance. The results are expressed by the Bone Structure Index (BSI) or by its T-score, that is the number of standard deviations from the healthy population average. Purpose: Evaluate the precision of BES TEST (TM) under reproducibility conditions, defined as repeated measurements on the same or similar objects which include different locations, operators, and measuring systems. Methods: A total of 5 I replicate measurements were performed by four different operators on five different phantoms. Each phantom was 3D printed using Stereolithography (SLA) and Fused Deposition Modeling (FDM) and has a unique internal structure that mimics trabecular bone. ISO 5725 guidelines were followed for the interpretation of results. Results: The 3D-printed phantoms performed like real bones when analyzed with BES TEST (TM). The reproducibility 95% Confidence Interval expressed in BSI is CIR = +/- 11.1, which corresponds in T-score to CIR,Tscore = +/- 0.49. The Least Significant Change in BSI is LSCR = +/- 7.9, which corresponds to LSCR,Tscore = +/- 0.35. Conclusion: The reproducibility of BES TEST (TM) within the admissible range is not inferior to that of gold standard tests for osteoporosis. 3D printing proved a valuable tool to perform reliable replicate measurements without having patients undergo unnecessary tests
Carlo Natali & Stefano Maso (a cura di), Antiaristotelismo
No full textDestrée Pierre. Carlo Natali & Stefano Maso (a cura di), Antiaristotelismo. In: L'antiquité classique, Tome 70, 2001. pp. 360-361
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
Voriconazole in Orthopaedics: Osteomyelitis and Antifungal-Loaded Bone Cement.
No full textFungal osteomyelitis and joint infections are uncommon diseases that very present unique treatment challenges in comparison to bacterial infections. The number of antifungal agents has been greatly enriched by new discoveries such as second generation triazoles and echinocandins. Voriconazole is a second generation triazole antifungal agent currently approved for the treatment of aspergillosis, candidiasis, and infections caused by scedosporium apiospermum and fusarium spp.
The aim of this chapter is to discuss the rationale for the use of voriconazole in orthopaedics for the treatment of fungal osteomyelitis and periprosthetic infections. Current treatment recommendations combine systemic antifungal therapy and surgery including debridement, abscesses or joint drainage, and removal of prosthetic implants. Voriconazole has been reported to be active against infections caused by candida spp., aspergillus spp., fusarium spp. and scedosporium spp., whereas few reports have demonstrated efficacy in histoplasmosis, coccidioidomycosis, and blastomycosis. Recent studies have reported the successful use of voriconazole in antifungal impregnated cement spacers for the two stage revision of periprosthetic infections
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
Introduzione. Al laboratorio di edizione del testo filosofico: ascoltare, rielaborare, scrivere
No full textSaggio introduttivo a " Éclairs. Esercizi di scrittura filosofica
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