1,720,959 research outputs found
Valore dell'emoglobina glicosilata nella evolutività della retinopatia diabetica.
No full textIn un gruppo di pazienti diabetici seguiti per un lungo periodo sia con esami oculistici completi che con controlli accurati diabetologici gli AA valutano come valori alterati nel tempo della emoglobina glicosilata siano un indice predittivo di future complicanze oculari
Dall’esibizione al rigore: analisi dei sepolcreti laziali tra VII e VI sec. a.C.
No full textExcursus sulla diminuzione dei corredi nel corso dell'orientalizzante nel Lazi
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
Ibopamine, dopamine and IOP
No full textIbopamine is a pro-drug of epinine, a dopamine analogue, which stimulates dopaminergic, beta-adrenergic and, at high concentrations, alpha-adrenergic receptors. On the basis of the results obtained by the authors since 5 years, ibopamine administered topically at a concentration of 2% owns the property of determining, besides a marked mydriasis without cycloplegia, an ocular hypertensiue activity lasting 1 to 2 hours, in 92% of patients with high-tension open-angle glaucoma, in 34% of subjects with borderline IOP and in 76% of patients with normal pressure glaucoma. No significant IOP changes were noted in normal eyes. The IOP responses proved to be independent from the mydriasis induced by the drug. These data speak in favour of the clinical application of ibopamine as a valuable provocative test in glaucoma. The ocular hypertensive effects of ibopamine are attributable to a dopaminergic action, since the topical administration of adequate concentrations of dopamine (ocular bath) induced similar IOP responses in the same glaucomatous patients previously treated with ibopamine. The authors discuss their clinical data obtained in a six-year experience with dopamine, ibopamine and several D1 and D2 agonists and antagonists in order to point out the role played by the dopaminergic system in the IOP-physiopathology
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
RESUTLTS OF THE ARGON LASER TREATMENT IN THE PATIENTS WITH DIABETIC RETINOPATHY
No full textThe Authors discuss argon laser treatment in a group of diabetic patients whose retinopathy was both ischemic and exudative type
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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