1,721,113 research outputs found
Special Issue dedicated to International Meeting on "Thermodynamics of Alloys-TOFA 2002" - Rome, Italy, 8-13 September 2002
No full textRapporto 2010 dell’Osservatorio Nazionale Alcol e Pubblicità.
No full textVengono riportati i dati degli spot pubblicitari trasmessi nell'anno di riferimento sulle principali reti televisive. Viene inoltre descritta l'analisi statistica di un questionario somministrato alla popolazione relativo a come vengono percepite le informazioni pubblicitarie. Infine viene illustrata l'analisi semiologica di tre pubblicità a campione. In appendice il questionario utilizzato, la descrizione del sito ove i dati vengono pubblicat
Measurement of Mechanical Stresses Transmitted by Grape Harvesters.
No full textThe research aims to analyze the stresses transmitted during the interception and transport of grape by mechanical tools of grape harvesters. The aim is to characterize mechanically an overlooked feature of the harvesters, identifying the most critical points in terms of mechanical stress on the product. The research has tested the main horizontal shaking machines, trailed and self-propelled, operating in Italy. The tests were carried out on Lambrusco Grasparossa vines grown on level land. The vineyard was trained to spurred cordon, with a plant distance of 1.2 m by 2.5 m. The impact on machine parts, from the moment the product was detached until it was unloaded into the hopper, was measured using an instrumented sphere. Each grape harvester has been used in real work condition by putting the sphere in the grape flow. The trial allowed to trace the path of the grape inside the grape harvester, showing significant differences between the two types of machines (self-propelled and trailed) within the same type. It appears that the interception and transport equipment can worsen the integrity and quality of the grapes harvested mechanically
RE: Atypical pulmonary metastases from pancreatic adenocarcinoma
No full textWe recommend Lin et al. (1) for their interesting article on a case of atypical pulmonary metastases from carcinosarcoma of the parotid gland, demonstrating the radiologic features of an air-space pattern and calcification. We concur with their study in considering this type of lesions a formidable diagnostic challenge in the patients with unknown extrapulmonary malignancies. We would like to lend more support to this study by offering our experience with a similar exceptional case of atypical pulmonary metastases from a different kind of primary tumor.
Recently, a 71-year-old afebrile female patient was admitted to our emergency department presenting 1-month history of chest pain and nausea. The chest radiography showed multiple small nodules throughout both lungs. The contrast-enhanced CT scan of the chest revealed the cavitating nature and a miliary pattern of the nodules (Fig. 1). The patient was suspected for the advanced pulmonary tuberculosis, but the quantiferon blood test resulted negative. A body CT was performed to better understand the overall clinical condition, and a solid mass was detected in the pancreatic isthmus (Fig. 2). At this point, a bronchoalveolar lavage was ordered in order to clarify the nature of the lung lesions. Some neoplastic cells testing positive for CK17 and CK19 were retrieved and the conclusive diagnosis was the metastases of pancreatic adenocarcinom
Linee Guida per una corretta diagnosi della Fetopatia da alcol.
No full textVengono indicate le linee guida per la diagnosi di Fetopatia Alcolica dal punto di vista dismorfologico, psicologico. Sono illustrati alcuni dati epidemiologici e metodologie di screenin
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
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
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