1,720,963 research outputs found

    La piramide alimentare umbra

    No full text
    The Food Pyramid is a graphical representation of a Mediterranean dietary pattern that the international scientific community consider the best to drive the population towards rational and healthy food choices. Developed for the first time in 1992 by the US Department of Agriculture (USDA), it has undergone some developments based on nutritional requirements, diet and health relation new knowledge, economic conditions and lifestyle changes. Because of its simple and intuitive graphics, the Food Pyramid represents an effective instrument for Nutrition Education to help people implementing a diet that promotes health and reduces the risk of disease. The arrangement of the food products inside it indicates both quantity (transversely) and frequency (longitudinally) which food should be consumed. The proposal to develop a Food Pyramid of the Mediterranean Umbria (from the latin mediterraneus, literally “in the middle of land” and therefore Mediterranea regio) derived from the will to promote a nutrition education intervention aimed at correcting and rationalizing population food habits using the typical/traditional regional products. The added value of the proposal is promoting Umbria food products, whose excellent quality is the result of a still intact land, particular pedoclimatic conditions and crops/breeding care, supported by history heritage and ongoing scientific research

    Going Beyond Counting First Authors in Author Co-citation Analysis

    Full text link
    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

    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 link
    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
    corecore