1,722,274 research outputs found
L'analisi dei consumi nei comuni della Provincia di Benevento e l'indicazione delle aree di attrazione commerciale
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Noncollisional kinetic model for non-neutral plasmas in a Penning trap: General properties and stationary solutions
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Investigation of turbulent transport regimes in the tokamak edge by using two-fluid simulations
Full text linkThe results of flux-driven, two-fluid simulations in single-null configurations are used to investigate the processes determining the turbulent transport in the tokamak edge. Three turbulent transport regimes are identified: (i) a developed transport regime with turbulence driven by an interchange instability, which shares a number of features with the standard L-mode of tokamak operation; (ii) a suppressed transport regime, characterized by a higher value of the energy confinement time, low-amplitude relative fluctuations driven by a Kelvin–Helmholtz instability, a strong E × B sheared flow and the formation of a transport barrier, which recalls the H-mode; and (iii) a degraded confinement regime, characterized by a catastrophically large interchange-driven turbulent transport, which recalls the crossing of the Greenwald density limit. We derive an analytical expression of the pressure gradient length in the three regimes. The transition from the developed transport regime to the suppressed transport regime is obtained by increasing the heat source or decreasing the collisionality and vice versa for the transition from the developed transport regime to the degraded confinement regime. An analytical expression of the power threshold to access the suppressed transport regime, linked to the power threshold for H-mode access, as well as the maximum density achievable before entering the degraded confinement regime, related to the Greenwald density, are also derived. The experimental dependencies of the power threshold for H-mode access on density, tokamak major radius and isotope mass are retrieved. The analytical estimate of the density limit contains the correct dependence on the plasma current and on the tokamak minor radius.SP
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
The experience of social reporting in Italian judicial offices. The laboratory of the public prosecutor’s office in Naples
No full textPurpose: The paper aims to reach a better understanding of accountability and social reporting in the Italian justice system, by examining the state of the art of both literature and practice. The case study highlights the critical elements in drawing up the social report of one of the most important Prosecutor Offices in Italy. Design/methodology/approach: The case study analyzes the activities of the actors involved in the report building process by detailing all the steps involved in a research diary, in order to examine such process from the inside, thus reversing its perspective. Findings: The study shows that both the lack of guidelines for judicial administrations and a consolidated trend of transforming administrative facts into documents useful to stakeholders slow down the evolution of practices, which are stuck in a perpetual trial stage. Research limitations/implications: The limitations are mainly related to the adoption of a single case study, which does not include any comparison with other reporting experiences in the justice sector. Originality/value: This paper adds evidence to the theoretical debate on social reporting in the justice sector which has so far received the attention of a limited number of scholars. Furthermore, unlike other studies focusing exclusively on the final report while overlooking the process that turns input into output, this research deals with the core of the social reporting process and practices in their development, capturing their most intimate and controversial aspects from the inside
"Politiche di bilancio e falso in bilancio nelle aziende e nelle amministrazioni pubbliche: relazione dicotomica o rapporto di interdipendenza funzionale?"
No full textL’Accountability o dependability. Il caso degli enti strumentali regionali della regione Campania (parte II)
No full text"Virtual museums:International strategies and digital innovation management in global competition - an overview"
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