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Bassan N.,International School for Advanced Studies | Bassan N.,National Institute of Nuclear Physics, Italy | Fantoni S.,International School for Advanced Studies | Fantoni S.,National Agency for the Evaluation of Universities and Research Institutes | Schmidt K.E.,Arizona State University
Physical Review C - Nuclear Physics | Year: 2011

Neutron star crustal matter, whose properties are relevant in many models aimed at explaining observed astrophysical phenomena, has so far always been studied using a mean-field approach. To check the results obtained in this way, a sensible next step is to make use of a realistic nuclear potential. The present paper extends the periodic box Fermi hypernetted chain method to include longitudinal-isospin dependence of the correlations, making feasible a study of asymmetric crustal matter. Results are presented for the symmetry energy, the low-density neutron star equation of state, and the single-particle neutron and proton energies. © 2011 American Physical Society.

Armani P.,University of Trento | Yu Illarionov A.,University of Trento | Lonardoni D.,University of Trento | Pederiva F.,University of Trento | And 3 more authors.
Journal of Physics: Conference Series | Year: 2011

The problem of accurately determining the equation of state of nuclear and neutron matter at density near and beyond saturation is still an open challenge. In this paper we will review the most recent progress made by means of Quantum Monte Carlo calculations, which are at present the only ab-initio method capable to treat a sufficiently large number of particles to give meaningful estimates depending only on the choice of the nucleon-nucleon interaction. In particular, we will discuss the introduction of density-dependent interactions, the study of the temperature dependence of the equation of state, and the possibility of accurately studying the effect of the onset of hyperons by developing an accurate hyperon-nucleon and hyperon-nucleon-nucleon interaction.

Anfossi A.,National Agency for the Evaluation of Universities and Research Institutes | Ciolfi A.,National Agency for the Evaluation of Universities and Research Institutes | Costa F.,National Agency for the Evaluation of Universities and Research Institutes | Costa F.,University of Pisa | And 2 more authors.
Scientometrics | Year: 2016

The paper describes a method to combine the information on the number of citations and the relevance of the publishing journal (as measured by the Impact Factor or similar impact indicators) of a publication to rank it with respect to the world scientific production in the specific subfield. The linear or non-linear combination of the two indicators is represented on the scatter plot of the papers in the specific subfield in order to immediately visualize the effect of a change in weights. The final rank of the papers is therefore obtained by partitioning the two-dimensional space through linear or higher order curves. The procedure is intuitive and versatile since it allows, after adjusting few parameters, an automatic and calibrated assessment at the level of the subfield. The derived evaluation is homogeneous among different scientific domains and can be used to address the quality of research at the departmental (or higher) levels of aggregation. We apply this method, that is designed to be feasible on a scale typical of a national evaluation exercise and to be effective in terms of cost and time, to some instances of the Thomson Reuters Web of Science database and discuss the results in view of what was done recently in Italy for the Evaluation of Research Quality exercise 2004–2010. We show how the main limitations of the bibliometric methodology used in that context can be easily overcome. © 2016 Akadémiai Kiadó, Budapest, Hungary

Bonaccorsi A.,National Agency for the Evaluation of Universities and Research Institutes | Secondi L.,National Agency for the Evaluation of Universities and Research Institutes | Setteducati E.,National Agency for the Evaluation of Universities and Research Institutes | Ancaiani A.,National Agency for the Evaluation of Universities and Research Institutes
Journal of Technology Transfer | Year: 2014

Over the last few years, the emergence of universities' third mission has significantly affected objectives, sources of funding and financing methods, as well as the management, of universities. Although the university-industry relationships have been widely investigated, several interesting theoretical and empirical issues still remain open in the literature. In this paper we construct an original data set, combining financial information with structural and organizational data on Italian University departments, with a twofold aim. First, to describe the importance and the extent of third-party funding in the Italian system of research as well as the pattern of evolution over the last few years. Second, to investigate the factors that influence both the probability and the intensity of the commitment of departments in third-party activities by building a multi-level framework combining factors at individual, departmental, university and territorial levels. The results obtained suggest a number of policy implications for universities and policy makers. On one hand, universities should explicitly recognize the role of dedicated internal organizations and provide training for professional staff capable of acting as value-added intermediaries. On the other hand, if policy makers wish to improve the relationships between universities and external actors, disciplinary differences across departments as well as regional inequalities in growth levels should be carefully considered, giving up a one-size-fits-all approach. © 2012 Springer Science+Business Media New York.

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