1,721,075 research outputs found

    Introduzione

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    Introduzione al volume "La quotidiana emergenza. I molteplici impieghi delle istituzioni sanitarie nel Mediterraneo moderno

    Practical suggestions for the design, construction and maintenance of vessels with high acoustical performances

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    This paper describes the broad outlines of the problems related to vessels with high acoustical perforrnances during all the phases of their life, from the very early design up to maintenance. The terms of the problem of sound attenuation on a vessel are discussed, with reference to the main sources present on board and the paths connecting them to the receiving positions. Practical procedures as well as theoretical investigations to predict acoustical performances are briefly reported, with indications about their effectiveness, reliabiliry and applicability. Some anti-noise suggestions are presented to reduce the noise levels of the sources and to increase the transmission losses along the various paths. General criteria to be put into practice during the operational life of the vessel are suggested in order to maintain the original low-noise characteristics

    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

    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

    The Story of the plague in the Maritime Republic of Genoa (Italy) (1656-1657): An innovative public health system and an efficacious method of territorial health organization

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    Introduction. With the recent COVID-19 pandemic, the terms quarantine, contagion and infection have again become part of our everyday speech, prompting historians to reflect on the settings in which they were originally used and to make comparisons with the present time. How did people cope with epidemics in the past? What measures were taken? Objectives. Here, we analyse the institutional response of the Republic of Genoa to a calamity that shook the city - the plague of 1656-1657. In doing so, we focus particularly on the public health measures implemented, as recorded also in unpublished and archival documents. Discussion. In order to tighten control over the population, Genoa was divided into 20 zones, each of which was placed under the authority of a Commissioner endowed with criminal jurisdiction. The Commissioners' duties concerned the spheres of public health, public order and those tasks which today we would assign to "civil protection". Through the official documentation and the trial records kept by the Chancellor of one of these zones, we can shed light on the Commissioners' everyday activities and assess the impact of the public health measures on the population. Conclusions. The 17th century plague in Genoa provides us with an important testimony of a well-organised and structured public health policy - an institutional response involving the adoption of efficacious measures of safety and prevention in the field of hygiene and public health. From the historical-social, normative and public health perspectives, this meaningful experience highlights the organisation of a large port city, which was at the time a flourishing commercial and financial hub

    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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