1,721,201 research outputs found
Musei e democrazia culturale: tra parità ed inclusione verso l’abbattimento delle barriere sociali
No full textIl Museo ha sempre subito una serie di trasformazioni ed evoluzioni rispondendo ai cambiamenti della
società in cui è inserito. Oggi, l’attuale revisione della definizione di “Museo” conferma questo
processo evolutivo sottolineando l'importante ruolo sociale, oltre che culturale, che questa istituzione
rappresenta.
La cultura è il cuore e l’anima della democrazia e, in quanto tale, appartiene a tutti. Leggiamo, infatti,
nella “Convenzione culturale europea” che la cultura svolge un ruolo fondamentale nella promozione
della comprensione degli altri e nel rispetto della diversità.
In Italia ospitiamo ben il 70% del patrimonio culturale mondiale, quindi, noi più di ogni altro paese al
mondo dovremmo dare, ed essere, esempio di una cultura di tutti e per tutti.
Uno dei principali problemi che i musei si trovano ad affrontare in questo contesto è proprio quello
delle barriere culturali. Ancora oggi, queste istituzioni, vivono all’ombra di un’ idea diffusa di
“museo” come luogo adatto solo ad un certo livello di classe sociale. L’idea di museo, come luogo
dove tutti possono imparare, indipendentemente dal contesto sociale di appartenenza, è ancora un
traguardo lontano dall’essere raggiunto. I dati ISTAT, infatti, evidenziano che il consumo culturale è
influenzato principalmente dal grado di istruzione piuttosto che dal reddito o da altri fattori.
Se da un lato siamo lontani dal raggiungere questo traguardo, dall’altro lato della stessa medaglia,
ovvero quello dell’accessibilità, l’impegno dei musei è davvero notevole, così come gli obiettivi
raggiunti
Application of MCNP for predicting power excursion during LOCA in Atucha-2 PHWR
No full textAtucha-2 is a Siemens-designed pressurized heavy water reactor in the Republic of Argentina. The correct prediction of the negative reactivity introduced in the moderator by an Emergency Boron Shutdown System (EBSS) is of great relevance for the correct safety evaluation of a double-ended guillotine large break LOCA scenario. During such event the EBSS is in charge to compensate the insertion of positive reactivity, caused by the void generated in the coolant channels by a sharp system pressure drop, in order to avoid severe core damage. The correct simulation of such event implies the minimization of the so called "numeric boron self-shielding effect" or the over-estimation of the inserted negative reactivity caused by the adoption of relatively large numerical meshes. In fact, because during the first phases of the injection, a very high concentrated boron solution is introduced in a small volume of the moderator tank, non-conservative reactivity estimation can be calculated if a "numeric boron dilution" is resulting by the adoption of large thermal-hydraulic and neutronic meshes. A methodology based on Monte Carlo transport code MCNP5 has been developed in order to predict power and reactivity excursions, representing a boron distribution in the moderator with different spatial resolutions. In such a way, it was possible to investigate the negative reactivity over-estimation due to the "boron self-shielding effect". This investigation is generally not possible by system codes used for safety analysis. The methodology was extended also to benchmark the EBSS negative reactivity insertion evaluated by the reference system code RELAP-3D©/NESTLE. Final results were used for the development of the Chapter 15 of the Final Safety Analysis Report of Atucha-2 NPP, demonstrating the conservative predictions of the reference system code employed for the safety evaluation. © 2015 Elsevier Ltd. All rights reserved
Design and Implementation of the HC Report at the University Italian Institute
No full textThe purpose of this paper is to develop a Human Capital Report focused on the competency profile of the key employees. Employing the case study of Biomedical Branch of University of Florence, we have designed a strategy map centred on key stakeholders: students, university, didactic and research centres, businesses. Furthermore, we have designed a model for the management of human resources, integrating two different approaches: individual and organic. On the basis of this model, semi-structured interview was carried out to obtain rich data on the current competences of key employees, divided in three personal characteristics for each strategic theme: knowledge, skills, aptitudes. The results of our analysis show where the competences of the key personnel are lacking, the strategic initiatives to take in the future, and the lead indicators to use for measure the effects of the initiatives. This study contributes to the previous literature, describing how university institutes can measure the human capital readiness
Antioxidative Defense and Fertility Rate in the Assessment of Reprotoxicity Risk Posed by Global Warming
Full text linkThe objective of this review is to briefly summarize the recent progress in studies done
on the assessment of reprotoxicity risk posed by global warming for the foundation of strategic
tool in ecosystem-based adaptation. The selected animal data analysis that was used in this paper
focuses on antioxidative markers and fertility rate estimated over the period 2000–2019. We followed
a phylogenetic methodology in order to report data on a panel of selected organisms that show
dangerous eects. The oxidative damage studies related to temperature fluctuation occurring
in biosentinels of dierent invertebrate and vertebrate classes show a consistently maintained
physiological defense. Furthermore, the results from homeothermic and poikilothermic species in
our study highlight the influence of temperature rise on reprotoxicity
B&W spectral shift control reactor lattice experiments: Evaluation of core I and core VIII
No full textThis paper summarizes the evaluation for core I and core VIII of the Babcock & Wilcox Spectral Shift Control Reactor critical experiment program. The Spectral Shift Control Reactor concept, moderated and cooled by a variable mixture of heavy and light water, envisaged changing of the thermal neutron spectrum during the operation to encourage breeding and to sustain the core criticality. Core I contained 484 fuel rods with 4% UO2 fuel in light water while core VIII contained 2188 fuel rods with 93% enriched UO2-ThO2 fuel in a moderator mixture of heavy and light water. For core I, the criticality experiment and measurements of the thermal disadvantage factor were evaluated. For core VIII, only the criticality experiment was evaluated. For both cores, experimental uncertainties were determined confirming the good level of accuracy achieved by the experimentalists. Based on the experimental configurations, benchmarks were proposed, and their biases were determined
Strategic Performance Measurement of Research and Development: A Case Study
Full text linkThe paper used an in depth case study to investigate how firms can integrate the strategic performance measurement of R&D with the Balanced Scorecard. Moreover, the paper investigated the crucial role of controller in the decision making process of this integration.
The literature review of R&D management evidenced the limits of Balanced Scorecard to manage and monitor the R&D activities. Therefore, the firms have to create a specific performance measurement system and to link it with the macro-indicators of Balanced Scorecard. The controller has a central role in the selection of non-financial ratio as the R&D measures to introduce in the Balanced Scorecard.
In choosing our case study, we have selected the pharmaceutical industry because of its relevant R&D investment. Within the sector we chose the Italian affiliate of a traditional industry leader, Eli Lilly Italia,that was characterized by the reorganization of R&D performance measurement systems and its consequent simplification.
The Balanced Scorecard of Eli Lilly Italy were categorized into four perspectives: Financial Perspective, Customer Perspective, Competence Perspective and People Perspective. The competence perspective was linked to the R&D dashboard, composed by several key performance indicators: cycle time, cycle time AMR, publication, corporate productivity, capacity, rating audit quality. Furthermore, when the company has implemented the Balanced Scorecard, the controller has assumed a crucial role in choosing indexes and in the organizational learning process connected to the feed-back process.
The study offers an example of integration of R&D performance management with Balanced Scorecard and it contributes to the literature review about the role of controller in a complex system control environment
Effects of cross sections library parameters on the OECD/NEA Oskarshamn-2 benchmark solution
No full textThe OECD/NEA proposes a new international benchmark based on data collected during an instability transient occurred at the Oskarshamn-2 NPP. This benchmark is aimed at testing the coupled 3D Neutron Kinetic-Thermal Hydraulic (3D NK-TH) codes on challenging situations. The ENEA "Casaccia" Research Center, is participating to this benchmark, developing a computational model using the RELAP5-3D© code. The 3DNK model has been already developed from the cross sections dataset calculated by OKG, the Oskarshamn-2 licensee, through the CASMO lattice code. In order to use this neutron cross sections database in RELAP5-3D© a n-dimensional polynomials data fitting and base cross sections values calculations are required. An ad-hoc tool, named PROMETHEUS, has been developed for automatically generating RELAP5-3D©-compatible cross sections libraries. This tool allows at easily visualizing the complex structure of the neutronic datasets; moreover it is exploited for deriving different cross sections libraries needed to evaluate neutronic parameters effects on the reactor instability prediction. Thus, the effects of the fuel temperature and control rod histories, of the discontinuity factors (averaged/not averaged) and of the neutron poisons has been assessed. A ranking table has been produced, demonstrating the relevance of the not-averaged discontinuity factors and of the on-transient neutron poisons calculations for the correct prediction of the Oskarshamn-2 event. © 2015 Elsevier Ltd. All rights reserved
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