1,720,991 research outputs found
WEB-based Radiology: a future to be created
No full textThe impact of Internet on Medicine and Surgery is certainly remarkable, however the influence it had on Diagnostic Imaging was even stronger. The standardization of digital images acquired by the different medical imaging equipment has further facilitated the diffusion, transmission and communication in radiology within hospitals as well as on WEB. Radiology departments are bound to become "filmless" and with the present "tablet PC" radiological images will be directly transferred to the patient's bed in the relative electronic patient report. For radiology, interactive education could be envisaged with a tutor who guides the student(s) through the network. The Internet is an inexhaustible source of radiologic educational and information material with a number of sites of clinical cases, tutorial and teaching files, journals and magisterial lectures on-line. In a near future, the Internet could be applied in the simulation of clinicoradiologic cases or in applications of artificial int..
Diagnostic imaging of the digestive tract. Reasoned approach to a duodenal filling defect
No full textA case of a patient with sideropenic anemia of suspected gastrointestinal origin is presented. A radiologic study of the upper digestive tract was performed. It documented a duodenal filling defect giving rise to an analytic discussion throughout various perceptive-interpretative logical steps: the image reality, the formation of the filling defect image and its nature. The radiologist's conclusions supported the presence of a benign submucosal neoformation to be treated with surgical resection for its size and for the patient's clinical conditions
APPROCCIO DIAGNOSTICO RAGIONATO AD UNA “LACUNA” DEL DUODENO, DOCUMENTATA DA ESAME A DOPPIO CONTRASTO DELLE PRIME VIE DIGERENTI
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COSA IL CLINICO NECESSITA DI SAPERE DAL RADIOLOGO NELL’IMAGING DIAGNOSTICO DEL PIEDE DIABETICO
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“LUCI” ED “OMBRE” IN ECOGRAFIA. APPROCCIO DIAGNOSTICO RAGIONATO AL LINGUAGGIO ARTEFATTUALE DELLA MACCHINA
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REASONED APPROACH TO MULTIPLE OSTEOSCLEROTIC LESIONS. COMBINED DIAGNOSTIC IMAGING IN A CASE OF OSTEOPOIKILOSIS
No full textThe case of a female patient who had undergone mastectomy for infiltrating ductal carcinoma and come to the Orthopedics Division for lumbosacral pain unresponsive to conventional treatment is discussed. Pelvic X-ray, CT and scintigraphy were performed. The presence of multiple areas of selerosis of the pelvis and proximal femurs were documented. The differential range could be limited to osteoblastic metastasis and osteopoikilosis. The diagnosis of osteopoikilosis was established based on scintigraphy which proved the absence of uptake of the radiotracer
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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