1,722,066 research outputs found

    Turnover of 15N in undisturbed root systems and plant materials added to three soils

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    Thomsen, Ingrid K. ; Oades, J.M. ; Amato, M

    Quantification of food waste within food service in the historic centre of Naples: A case study

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    The world scenario on human nutrition nowadays is a huge paradox. From one side, millions of undernourished people. On the other, tons of food are wasted every year. Throughout the whole food chain, wastes or losses are a modern issue. Albeit a growing scientific interest, literature lacks precise estimates that identify the actual composition and basic characteristics of the food waste from a business owner point of view. Therefore, this work tries to estimate the quantity and quality of the food wasted in the Historic Centre of Naples, Italy, via a self-report questionnaire, involving directly food service owners. Results show an amount of more than 7000 quintals of food wasted every year, of which more than 70% is represented by finished products unsold, even being potentially exploitable through a food re-use that, according to interviews, is perceived difficult in terms of both execution and management

    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

    Modelling wage growth dynamics in Italy: 1960 1990

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    In this work we analyse the common dynamics properties of wage inflation, price inflation, unemployment and labour productivity using Italian annual data: 1960-90. Applying cointegration technique we test for the presence of a wage equation and a proce mark up equation. The overall conclusion is that wage inflation does not contribute in explaining the price inflation process and the traditional mark up view of inflation is not supported by the data. The policy implication is that monetary policy need not respond to wage data because they do not contain additional information about the future path of inflation
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