1,720,972 research outputs found
LE AFFEZIONI DOLOROSE MUSCOLO-TENDINEE DELLA REGIONE EPICONDILOIDEA OMERALE. INCIDENZA DELLE CIRCOSTANZE LAVORATIVE E DIAGNOSI ECOGRAFICA
No full textLE AFFEZIONI DOLOROSE MUSCOLO-TENDINEE DELLA REGIONE EPICONDILOIDEA OMERALE. INCIDENZA DELLE CIRCOSTANZE LAVORATIVE E DIAGNOSI ECOGRAFICA
No full text
Double cystic brain metastasis in a patient with stable pancreatic intraductal papillary mucinous neoplasm
No full textBackground: Brain metastases in pancreatic cancer are a rare condition and are usually seen in case of pancreatic adenocarcinoma. Only few cases of brain metastasis in patients affected by Intraductal papillary mucinous neoplasm (IPMN) are actually reported. Case description: We report a patient diagnosed with double cystic brain lesions that the histological examination reveal to be consistent, with pancreatic metastasis. Our patient had an history shown of stable pancreatic IPMN which has never made the oncologist suspicious about neoplastic progression or degeneration into pancreatic carcinoma. Considering the rarity of these metastasis we did a literature review on the topic Conclusions: Despite rare, pancreatic origin of a cystic brain metastasis should considered in differential diagnosis in both patient with IPMN or patient with unknown primitive tumor
Two simple methods for overall determination of mobility in dynamic speckle patterns
No full textIn this work, we present two simple methods to quantify the mobility of dynamic speckle patterns. The first method is based on the averaged pixel intensity differences between subsequent frames, while the second simply counts the fraction of pixels whose intensity changes with time in more than a certain quantity related to background noise. We have analyzed the applicability of these methods to different specimens (inorganic and biological) and compared the results to check their validity.Fil: Budini, Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico - CONICET- Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina; Universidad Tecnológica Nacional. Facultad Regional Paraná; Argentina;Fil: Mulone, C.. Universidad Tecnológica Nacional. Facultad Regional Paraná; Argentina;Fil: Vincitorio, F. M.. Universidad Tecnológica Nacional. Facultad Regional Paraná; Argentina;Fil: Freyre, C.. Universidad Tecnológica Nacional. Facultad Regional Paraná; Argentina;Fil: López, A. J.. Universidad da Coruña. Centro de Investigacións Tecnolóxicas; España;Fil: Ramil, A.. Universidad da Coruña. Centro de Investigacións Tecnolóxicas; España
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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