178,042 research outputs found
Formulario della famiglia / diretto da Fabrizio Di Marzio, Rosaria Giordano ; commentato e aggiornato online con Francesco Bartolini ... [et al.]
No full textR&D in Cleaner Technology and International Trade
No full textWe consider a dynamic three-stage game played by two regulator-firm hierarchies to capture the scale and technological effects of opening markets to international trade. Each firm produces one good sold on the market. Firms can invest in R&D in order to lower their fixed emission/output ratio and are regulated with costly public funds. We take the context of sufficiently high market sizes and investment cost parameters. Opening markets to international trade yields more investment in R&D, more production and a lower emission ratio. When the market size is low enough and the investment cost parameter is high enough, pollution in common market is higher than in autarky. International trade reduces the social welfare.R&D, Cleaner technology, Common market, Social welfare
Piranesi-Vico-II Campo Marzio : foundations and the eternal city
No full textThis paper undertakes to develop an in-depth interpretation of Piranesi's Il Campo Marzio. While drawing heavily from specific details in both the text and images, the study retains a contextual outlook, speculating that Vico's New Science can lend meaning to Piranesi's work.Based primarily on Vico's concept of the Ideal Eternal History, parallels are drawn between the two works. While this provides the key to entering into Piranesi's work, it reveals only its inner horizon, merely describing in different terms what is already there.The insights provided by this exercise, however, demonstrate that the making of architecture as promoted by the Campo Marzio is not unlicensed Romantic freedom, but a fundamental, culturally-bound human activity. The paper concludes, moreover, that the making of the Campo Marzio interpretively re-enacts the original imaginative founding of the Eternal City and, as such, constitutes an attempt to re-found Heroic Rome
Karyological data of the native woody flora of Tuscany: state-of-art and first data analysis
No full textTuscany, with 268 taxa, is the Italian region with the highest number of native trees and shrubs (Roma-Marzio & al. 2015) and the second region in terms of percentage of the total vascular flora karyologically investigated (Bedini & al. 2012). Nonetheless, to date there is no specific study on the karyological information regarding the regional dendroflora.
In order to summarize the karyological information about the woody regional flora, a survey of the chromosome counts made on plants of regional and Italian provenance, stored in the online database “Chrobase.it” (Bedini & al. 2010 onwards) was performed. Our results show that only for 27 taxa chromosome counts were made on plants of Tuscan provenance (≈ 10% of the total regional woody flora), for 82 (≈ 30%) counts were made on plants of Italian, extra-Tuscan, provenance and for 263 (≈ 97%) counts were made on plants of extra-Italian provenance. For the following 8 taxa chromosome number is totally unknown: Anthyllis hermanniae subsp. corsica Brullo & Giusso; Juniperus del- toides R. P. Adams; Quercus × morisii Borzí; Q. × pseudosuber Santi; Rosa montana Chaix; R. pouzinii Tratt.; Rubus acheruntinus Ten; Tamarix dalmatica B.R. Baum. Based on counts on plants of Tuscan provenance, the most investigated genera are Cistus (4 out of 6 taxa were investigated) and Genista (all 5 woody species were investigated)
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
Estimation of Effective Parameters in a Lumped Nuclear Reactor Model Using Multiobjective Genetic Algorithms
No full text
Public–private partnership (PPP) in the context of European Union policy initiatives on critical infrastructure protection (CIP) from cyber attacks
No full textCritical infrastructures (CIs) play a vital role for the performance of the essential functions of the State and society. Due to the spread of different information and communications technologies (ICTs), this criticality strictly relies on the complexity of networks and IT system, as well as on the provision of the related services, a fortiori when they are managed by the private sector. Understanding this tension between public and private sector has become the key element to allow an effective protection of the CI. Recognizing the responsibilities derived from national and international regulations, governments should take the most appropriate decisions to guarantee public safety and national security, assuring a high level of security and resilience. In this vein, the strengthen of private-public partnership (PPP) as useful tool for multi-stakeholder governance is reaffirmed by several legislatives and policies tools at EU-level. The paper aims at analyzing the current state of the art among Members States (MS) in this field. The analysis is based on the primary and secondary sources. The hypothesis concerns, in turn, the relation between participation and success of the PPP in the field of CIP from cyber attacks. To validate the hypothesis, we focus the analysis on the presence of PPPs in protecting critical infrastructures from cyber attacks in the European Member States (and the UK)
"Scelta di piante spontanee toscane”: due erbari rilegati conservati nel Museo Botanico pisano
No full textTwo bound herbaria recently discovered in the Botanic Museum of Pisa are here presented. The two herbaria include 199 specimens and 142 different taxa, all collected in Tuscany. Among these taxa, five are Tuscan endemics, four Italian endemics, five aliens in Tuscany and two extinct. After a taxonomic and nomenclatural revision, the two herbaria were digitized and made freely available online. Based on a calligraphic comparison and on the analysis of some fragments of newspapers occurring in the herbaria, they have been attributed to the botanist Antonio Bottini (1850-1931) from Lucca
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