1,720,990 research outputs found

    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

    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

    Impact of noise pollution on the resident's quality of life in a section of the City of Rome

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    Introduction. Noise pollution is one of the main causes which worsen the quality of life in urban areas. European Union estimates that around 20% of European population suffer from noise exposure. Although the noise-induced annoyance is one of the most negative health impacts, few studies evaluated this effect in the city of Rome. Aim of the study was to assess the acoustic levels and the perceived annoyance by residents in the “Nomentano” section of Rome, taking into account the territorial structure. Methods. From 2004 to 2005, 19 sampling places have been chosen according to three categories of streets (“with flowing traffic”, “with medium level traffic” and “local” streets); the Laeq’s were taken during the day and the night in each street. The results were compared with the prescribed noise’s limit values of the current national regulations (DPCM 14.11.1997). In addition, interviews by questionnaire were carried out in 255 subjects over 10 years old (0,6% of residents) to investigate about their perceived annoyance level. 2 test for trend was used to assess whether there were difference among the proportions of disturbed subjects by categories of streets. Results. Registered noise levels in the flowing traffic and medium level traffic streets systematically exceeded the prescribed noise’s limit values (by up to 15 dBA). In “local“ streets noise levels exceeded limit values in 78% of day measurements and in 84% of those at night. There was a reduction in noise level by category of streets. Residents’ perceived annoyance levels depend on street category: 62.5% of “very much annoyed” live along flowing traffic streets, 37.4% along medium level traffic streets and 10% along local streets (2 test for trend p<0.001). 48.4% of those annoyed affirmed to be disturbed by road traffic noise in night-time, with probably negative effects on sleeping quality; the proportion of those annoyed increases with the street’s traffic level (2 test for trend p<0.001). About 42% of those interviewed declared to have adopted noise defence measures, such as house insulation or changes in rooms destination. 62% of interviewed referred to have difficulty in intellectual activity and 30% in conversation when windows are open. Discussion and conclusions. In the last few years several ad hoc Acts and interventions against urban noise had been approved and enforced, but pollution levels are still high, negatively influencing the resident’s quality of life. It confirms the need to extend the survey to the entire city area in order to elaborate more effective preventive approaches

    Dispelling the Myths Behind First-author Citation Counts

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    We 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

    Author Index

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    [Rad-Esito: new informational additions in the integration of content of hospital discharge cards for acute patients]

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    Since the January 2008 the tracking of additional information about hospital discharge card's content has been activated in Latium. The new data, noticed by RAD-Esito card, regard the hospitalizations for acute myocardial infarction, femoral neck fracture and coronary artery bypass surgery. This study's objective has been to evaluate the quality of the data collected with the new card, at the end of the 1st semester of experimentation, concerning two institutes of care of Latium, the Casilino Polyclinic (ASL Rome B) and the Anzio-Nettuno hospital (Assembled Hospitals, ASL Rome H). Furthermore, any significant correlation's existence between a few variables for acute myocardial infarction and femoral fracture with the mortality rate and the average hospitalization period has been statistically verified. This study's preliminary results show how the integration of the hospital informative flow with the new clinical variables will be able to allow the promotion of the quality in the coding of the diagnosis and procedures, according to the current international innovations. This additional information will also be able to support the regional appropriateness and outcome of the treatments evaluation programs

    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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