1,721,638 research outputs found
L'ordinamento forestale: prospettive di tutela e gestione sostenibile
Full text linkL'ordinamento forestale, tema della ricerca, è stato studiato nelle sue dimensioni storica, giuridica e scientifica al fine di vagliare la percorribilità normativa del connubio tra i principi dello sviluppo sostenibile e della sussidiarietà orizzontale. Attraverso l'analisi, in particolare, dei servizi ecosistemici forestali e dei relativi sistemi di remunerazione (PES) come vettori dello sviluppo sostenibile in materia, unita allo studio della vasta gamma di soggetti e istituti formanti l'organizzazione multilivello dell'ordinamento forestale, si è individuata nel modello dell'agenzia amministrativa la sintesi organizzativa che può sovrintendere alla funzione relativa al monitoraggio e alla gestione dei sistemi PES e costituire, al contempo, il foro partecipativo dei soggetti dell'ordinamento forestale. Il modello agenziale è coerente con i principi di integrazione e sussidiarietà nonché con il canone costituzionale dell'imparzialità e del buon andamento dell'azione amministrativa, rispondendo quindi positivamente alla sempre più necessaria integrazione tra amministrazione nazionale ed europea
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
High Tc superconductivity : notes on achievements and challenges
No full textThe intriguing nature of high-Tc superconductivity become evident since the discovery of the new class of oxide uperconductors. In this paper some phenomenological evidences mainly related to superconductive tunneling spectroscopy and Josephson effect are discussed. Six years later the state of the art has greatly improved due to the many achievements obtained, however it is not yet suitable for “last words” on the matter. Accordingly, the perspective is quite challenging and stimulating
Josephson junctions
No full textA review of the main applications of Josephson junctions will be given. The focus will be on junctions and devices made using 'conventional' low-T-c superconductors. Some selected examples of well-established applications and of interesting new developments will be 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 linkWe 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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