1,721,096 research outputs found
Giant cavernous mesenteric lymphangioma in adult.
No full textLymphangiomas are uncommon benign tumors and occur mainly in children and are usually located in head and neck. The abdominal organs are uncommon sites of origin. Usually they are asymptomatic and are diagnosed incidentally by physical examination due to abdominal pain or palpable mass or by radiologic imaging. Although benign, they can have a potentially aggressive behavior and necessitate surgical resection. On CT scan lymphangiomas appear as uni-multilocular septate cystic masses with enhancement of the wall and septa by contrast medium while MRI permits to detect lipids within the cystic lesions
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
Advantages of Neoral conversion in renal transplant patients.
No full textSandimmun Neoral is a microemulsion formulation of Sandimmun cyclosporin (Cya) with predictable pharmacokinetics, superior absorption and less dependent upon bile production. Recently Neoral replaced the old Cya in the clinical ground.
METHODS: The aim of this study was to assess the effectiveness, safety and advantages of this conversion in 90 adult renal transplant patients with stable renal function transplanted at least 24 months earlier. There were 48 males and 42 females with a mean age of 39 years (range: 18-56). Mean interval from transplant to conversion was 3.6 years (range: 2.7-5.4). Conversion rate was 1:1. Mean Neoral dose at conversion was 3.8 mg/kg/day (range: 2.1-5.7).
RESULTS: One month after conversion mean Neoral dose was 3.4 mg/kg/day (range: 2.2-3.9) and at six months was 3.2 mg/kg/day (range: 2.1-4). Serum creatinine and CyA trough levels remained stable. We did not observe rejection episodes or infections. The incidence of side effects due to CyA was slightly increased and there were not differences in terms of arterial pressure values and number of antihypertensive drugs given.
CONCLUSIONS: The conclusion is drown that conversion to Neoral is safe and results in rapid attainment of therapeutic trough levels. Six months after conversion the mean Neoral dose was decreased of 0.6 mg/kg/die per patient
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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