1,722,866 research outputs found
Il complesso del Fosso della Lupa Cb 288-Cb 278 nelle biocalcareniti mioceniche del bacino di Amantea (Cleto, Calabria settentrionale): relazioni tra stratigrafia, tettonica e fenomeni carsici
No full textProgrammazione, spesa e valutazione dei fondi europei per lo sviluppo
No full textIn questo lavoro si mette in evidenza l'esistenza di un "paradosso" nel processo di attuazione delle politiche di sviluppo comunitarie che contribuisce a nostro avviso a rafforzare quello che in letteratura viene definito come "evaluation deficit". In un contesto decisionale così ampio e complesso - al tempo stesso multi-obiettivo e multi-livello - l'influenza esercitata dai vincoli imposti negli stadi superiori del processo finisce per condizionare fortemente la capacità di produrre scelte ottimizzanti nei livelli successivi, con conseguenze non secondarie sulla reale efficacia della spesa. Scopo del lavoro è di contribuire ad aprire il confronto su come sia possibile, e in che misura, rafforzare il legame fra il sistema delle preferenze/obiettivi definiti a monte del processo di programmazione e le scelte realizzate a valle nella fase della selezione delle alternative di intervento e di spesa
Sperimentazione e degrado: il quartiere Torre Ranieri a Napoli
No full textIl lavoro presentato rientra nell’ambito degli studi sul patrimonio esistente, con particolare riguardo alla riqualificazione dei quartieri popolari. Nello specifico, il tema trattato riguarda l’elaborazione di metodologie di analisi tecnologico-costruttive finalizzate al recupero e alla manutenzione delle facciate del Quartiere Sperimentale di Torre Ranieri a Napoli
Commentary: Idiopathic intracranial hypertension without papilledema (IIHWOP) in chronic refractory headache
No full textGoing 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
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
Physiological responses of wine grape berries to postharvest ethylene treatments
No full textThe application of ethylene to harvested grapes affects wine composition mainly in terms of phenol concentration and aroma compound profiling. Microarray analysis performed on skins of wine grapes (Vitis vinifera, âSangioveseâ) treated, after harvest, with 1,000 ppm of ethylene for 36 h revealed no difference between control and treated samples in terms of flavonoid-related genes, thus supporting the hypothesis of an effect of exogenous ethylene on extractability during vinification rather than on increasing flavonoid biosynthesis. Changes in specific lipophilic compound concentration have been observed with antheraxanthin and violaxanthin accumulating in ethylene-treated berries and neoxanthin (and, at lesser extent, Î2-carotene) more abundant in control samples. A correlation network analysis based on transcript-metabolite data integration showed that antheraxanthin was strongly correlated (|Ï|>0.90) with SAMDC gene expression (direct) and Î2-carotene (inverse). Taking into account the relationships existing between carotenoids and abscisic acid (ABA) and considering that, in other plant species, SAMDC expression is induced by exogenous ABA, these results suggest that responses to exogenous ethylene in harvested grape berries are mediated by ABA. This hypothesis is also strengthened by the HORMONEMETER analysis performed on microarray data, pointing out a general correlation with ABA, indicating a positive action of the ethylene treatment upstream abscisic acid biosynthesis/metabolism possibly resulting in ABA concentration increase. Our data further confirm that the interplay between ABA and ethylene may represent a key physiological aspect impacting the final stages of grape berry development
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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
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