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Verso uno spazio multiculturale? Riflessioni geografiche sull'esperienza migratoria in Italia
No full textNatural compounds and extracts as novel antimicrobial agents
No full textIntroduction: Antimicrobial resistance is a worldwide problem accounting for the reduction or in some cases absence of drugs effectiveness normally used in infections treatment. In the light of the even more spread ability of microbials to develop resistance, there is an urgent necessity to find novel and alternative routes to fight infections. Natural compounds or extracts can be a valid alternative either as monotherapy or as adjuvant in order to improve the effectiveness of the failing drugs. Areas covered: This review provides a comprehensive update (2018–2020) on the development state of innovative antimicrobial agents based on natural compounds and extracts, also describing their compositions, methods of production and use, mechanism of action, along with anti-microbial data when available. Expert opinion: Owing to the pivotal role that natural compounds often cover in the finding of novel drugs, their in-depth analysis could pave the way to the discovery of new antimicrobial agents. Most of the alternative approaches reported in this short review were validated through in vitro and in vivo (animal as well as human) models. The employment of natural derived compounds and extracts, alone or in combination with classical antimicrobial drugs, as antimicrobial agents could represent an important achievement to challenge pathogens resistant mechanisms
Competenza culturale degli adolescenti immigrati. Una proposta metodologica ed operativa comparata (Italia, Albania, Bosnia Erzegovina, Croazia)
No full textThe paper refers to European project in progress that focuses on the theme which regards the cultura! competence of immigrant adolescents. The research develops at the same time in ltaly, Albania, Croatia and Bosnia. At the beginning becomes clear the concept of cultural competence not only through the study and analysis in literature but also through direct research and questionnaire which is oriented to operators (teachers, doctors, sodai assistants, psychiatrists, psychologists, cultural mediators). The results of the research into the different sectors: culture, school, health, integration, policies, projects, definition of cultural profiles will help in practice and they provide dissemination of information to prepare cultural kits for families and adolescents and to support all the people who work on the sector
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Osservazioni preliminari sulla presenza di gruppi rom in Sardegna. Il caso delle città di Olbia e Sassari.
No full textVariations on the Author
Get PDF“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
Get PDFWe 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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