1,721,041 research outputs found

    Un problema urbano. L’occasione dei vuoti

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    Articolo a più autori sul tema della dismissione urbana. Scrivono, insieme a C. Bianchetti, B. Secchi, S. Boeri, S. Brandolini, P. Gabellin

    L’urbanistica di Bernardo Secchi, laboratorio e condensatore di esperienze

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    articolo collettaneo sull'esperienza condotta come redattori della rivista Urbanistica nella direzione di Bernardo Secchi, da: C. Bianchetti, S. Boeri, P. Di Biagi, P. Gabellni, F. Infussi, A. Lanzani, C. Merlin

    Così la città adriatica diventa banale

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    Analisi di recenti trasformazioni urbane nella diffusione urbana medio-adriatica, in particolar modo a Montesilvano e Pescar

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

    H-1 NMR studies of alginate interactions with amino acids

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    The interactions between alginate and the amino acids,histidine, lysine,phenylalanine, and alanine,were studied by Proton Nuclear Magnetic Resonance. The characterization of the amino acids interaction with alginate was performed by 1D and 2D-NOESY experiments. Measurements of 1HNMR nonselective and selective relaxation rates in the absence and presence of alginate were used to calculate interaction constants between each amino acid and alginate. The interaction constants were found to be related to the hydrophobicity of the different amino acid side-chains. The interaction constant between phenylalanine and Ca2þ crosslinked alginate was also determined. There was no apparent differences observed in the crosslinked and the solution amino acid–alginate interactions. On the basis of the experimental results obtained,a mode

    Variations on the Author

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    “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

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    We 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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