This paper is a first pioneering attempt to apply the concept of resilience to the analysis of the public finance systems of local governments, a concept already used and ＂abused＂ in various disciplines and fields o...This paper is a first pioneering attempt to apply the concept of resilience to the analysis of the public finance systems of local governments, a concept already used and ＂abused＂ in various disciplines and fields of science. In particular, it proposes an attempt to estimate the recovery capacity of Italian Municipalities in a crucial period of our country＇s financial history, between 1992 and 2000, or between the currency crisis and the introduction of the Euro. However, the analysis also involved the subsequent trends, in order to demonstrate that the current vulnerability of the municipal public finance system, in particular of the Municipalities of Southern Italy, depends not only on the economic cycle but also on the continuous and incessant changes in the financing mechanisms of local governments established by the central government. The analysis showed a lower financial resilience of the Municipalities of the Mezzogiorno （island and continental） compared to those of the Center-North. The determinants of this phenomenon were found, for one part, through the analysis of the financial data of the Italian Municipalities - as presented by the SVIMEZ in its annual reports on the economy of the Mezzogiomo - and, for another part, through the critical synthesis of significant economic events which occurred during the period examined.展开更多
In this work, we report a facile method for the preparation of tough and highly stretchable physical hydrogels by dual cross-linking composed of vinyl-hybrid silica nanoparticles（VSNPs） as multivalent covalent cross...In this work, we report a facile method for the preparation of tough and highly stretchable physical hydrogels by dual cross-linking composed of vinyl-hybrid silica nanoparticles（VSNPs） as multivalent covalent cross-linking and hydrogen bonding as physical cross-linking. Poly（acrylic acid） nanocomposite physical hydrogels（NCP gels） are obtained without adding any organic chemical cross-linkers. When the content of VSNPs is 0.7 wt%（relative to the monomer）, the NCP gels exhibit good mechanical properties（fracture strength = 370 k Pa, elongation at break = 2200%） and a high swelling capacity in both deionized water（2300 g/g） and saline（220 g/g）. Meanwhile, the NCP gels have good recovery ability.展开更多
文摘This paper is a first pioneering attempt to apply the concept of resilience to the analysis of the public finance systems of local governments, a concept already used and ＂abused＂ in various disciplines and fields of science. In particular, it proposes an attempt to estimate the recovery capacity of Italian Municipalities in a crucial period of our country＇s financial history, between 1992 and 2000, or between the currency crisis and the introduction of the Euro. However, the analysis also involved the subsequent trends, in order to demonstrate that the current vulnerability of the municipal public finance system, in particular of the Municipalities of Southern Italy, depends not only on the economic cycle but also on the continuous and incessant changes in the financing mechanisms of local governments established by the central government. The analysis showed a lower financial resilience of the Municipalities of the Mezzogiorno （island and continental） compared to those of the Center-North. The determinants of this phenomenon were found, for one part, through the analysis of the financial data of the Italian Municipalities - as presented by the SVIMEZ in its annual reports on the economy of the Mezzogiomo - and, for another part, through the critical synthesis of significant economic events which occurred during the period examined.
基金financially supported by the National Natural Science Foundation of China(No.21474058)State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University(No.LK1404)Tsinghua University Scientific Research Project(No.2014Z22069)
文摘In this work, we report a facile method for the preparation of tough and highly stretchable physical hydrogels by dual cross-linking composed of vinyl-hybrid silica nanoparticles（VSNPs） as multivalent covalent cross-linking and hydrogen bonding as physical cross-linking. Poly（acrylic acid） nanocomposite physical hydrogels（NCP gels） are obtained without adding any organic chemical cross-linkers. When the content of VSNPs is 0.7 wt%（relative to the monomer）, the NCP gels exhibit good mechanical properties（fracture strength = 370 k Pa, elongation at break = 2200%） and a high swelling capacity in both deionized water（2300 g/g） and saline（220 g/g）. Meanwhile, the NCP gels have good recovery ability.
