1,721,044 research outputs found
La dimensione simbolica della diversità: le matrici della conflittualità etnico-culturale.
No full textIn questo breve scritto vengono approfonditi i concetti di identità, cultura, etnia, simbolo e conflitto culturale e si sottolinea come la diversità culturale, se da un lato possiede una spiccata attitudine a costituire elemento di tensione, contrapposizione e conflitto, dall’altro si traduce in “conflitto culturale”, solo laddove sia accompagnata da condizioni di esclusione, emarginazione e deprivazione economica, sociale e politica o da potenti spinte ideologiche e nazionalistiche
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
Increased follicular vascular endothelial growth factor (VEGF) as a paracrine reaction to hostile follicular environment in profounded GnRH agonist suppression in ART
No full text“Paracrine and endocrine effect of profound LH suppression in ART” E S G O I 2001 – C I C Edizioni Internazionali 359 – 64
No full textOvarian response and pregnancy outcome related to midfollicular LH levels in down-regulated women undergoing assisted reproduction
No full textOBJECTIVE: To assess ovarian response and pregnancy outcome related to midfollicular luteinizing hormone (LH) levels in nor-mogonadotropic women down-regulated with gonadotropin-releasing hormone-agonist (GnRH-a) (daily and depot) during an assisted reproduction cycle.
STUDY DESIGN: In a prospective randomized trial, 50 women were down-regulated with leuprorelin, 0.5 mg/d subcutaneously (group A) and 50 with leuprorelin, 3.75 mg depot (group B), prior to ovarian stimulation with recombinant follicle-stimulating hormone (FSH). Midfollicular serum LH levels less than or equal to 0.5 mIU/mL (subgroups A1 and B1) versus > 0.5 mIU/mL (subgroups A2 and B2) were considered. A comparative analysis was carried out on the clinical effects (duration of stimulation, total FSH dose, number of oocytes retrieved and pregnancy rate).
RESULTS: Maximum estradiol levels and pregnancy rates were higher in subgroups A2 and B2, with LH > 0.5 mIU/mL. No differences were observed in the cumulative amount of gonadotropin used, number of oocytes retrieved or fertilization rate.
CONCLUSION: When FSH only is used for ovarian stimulation, very low LH serum concentrations in nor-mogonadotropic women profoundly suppressed with GnRH-a, especially if given as a depot, may adversely affect in vitro fertilization outcome
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