Search results for " Stab"
showing 10 items of 1773 documents
Evoluzione del ruolo del Presidente del Consiglio dei Ministri e riforme istituzionali
2023
The parliamentary form of government, lacking adequate stabilizing elements, generates inefficiencies and institutional dysfunctions. The changes that it has undergone have determined new balances between powers, which favor the Executive, and, within this, the monocratic role of the President of the Council of Ministers. These changes highlight even more the need to carry out institutional reforms that rationalize the strengthening of the head of government, providing for suitable counterweights, and restructuring the relationship of trust in order to ensure its stability.
Sequential dissociation of insulin amyloids probed by high pressure Fourier transform infrared spectroscopy
2012
High Pressure (HP) Fourier Transform Infrared Spectroscopy (FTIR) has been here employed to investigate the thermodynamic stability of bovine pancreatic insulin (BPI) amyloids. Once the aggregation reaction has started, the backbone arrangement of the proteins forming the amyloid is known to reach a stationary phase in few hours; after this time the infrared absorption of fibrils becomes stable. It is here shown how the further stabilization of the structure during the stationary phase can be probed via FTIR spectroscopy, through the observation of the high pressure behaviour of fibrils formed at different maturation stages. We report on the high pressure fragmentation of insulin amyloids, …
Laika skalu dinamisko vienādojumu integrālā stabilitāte
2015
Darbā aplūkota laika skalu dinamisko vienādojumu integrālā stabilitāte. Apskatītas svarīgākās laika skalu īpašības, triviālā atrisinājuma stabilitātes jēdziens parastajiem diferenciālvienādojumiem, diferenču vienādojumiem un laika skalu vienādojumiem. Darba mērķis ir pierādīt dinamisko sistēmu stabilitāti izmantojot laika skalu analīzi, kas būtu vispārīgs pierādījums, ko var reducēt gan uz parasto diferenciālvienādojumu stabilitāti, ja T = R, gan uz diferenču vienādojumu stabilitāti, ja T = Z, kur T ir laika skala.
La resistenza di interfaccia calcestruzzo poroso-terreni a grana fina per il consolidamento di pendii mediante trincee drenanti profonde
2022
Le trincee drenanti profonde rappresentano uno dei metodi più efficaci per la mitigazione del rischio da frana, in pendii con falda idrica. Esse sono realizzate mediante pannelli o pali secanti. Il riempimento è costituito di calcestruzzo poroso o materiale granulare. Se le trincee sono adeguatamente “innestate” nel terreno stabile e il materiale di riempimento ha sufficiente resistenza e rigidezza come il calcestruzzo poroso, si ha ulteriore in-cremento di resistenza a taglio per effetto shear keys, oltre a quello derivante dalla riduzione delle pressioni in-terstiziali. L’incremento di resistenza è dovuto sia alla resistenza all’interfaccia calcestruzzo–terreni sia a quella intrinseca del…
Age-Related Differences in Intermuscular Coherence EMG-EMG of Ankle Joint Antagonist Muscle Activity during Maximal Leaning
2022
Background: Intermuscular synchronization is one of the fundamental aspects of maintaining a stable posture and is of great importance in the aging process. This study aimed to assess muscle synchronization and postural stabilizer asymmetry during quiet standing and the limits of stability using wavelet analysis. Intermuscular synchrony and antagonistic sEMG-sEMG (surface electromyography) coherence asymmetry were evaluated in the tibialis anterior and soleus muscles. Methods: The study involved 20 elderly (aged 65 ± 3.6) and 20 young (aged 21 ± 1.3) subjects. The task was to perform a maximum forward bend in a standing position. The prone test was divided into three phases: quiet standing …
Reforming the international financial and monetary system: from Keynes to Davidson and Stiglitz
2004
International audience; With the usual debates trumpeting the usual merits of fixed versus flexible exchange rates, or some various incarnations thereof, the authors draw attention to Keynes's original plan for an international clearing union. The paper takes a close look at Joseph Stiglitz's recent suggestions to deal with financial crises along with Paul Davidson's Keynes-Post Keynesian clearinghouse. In the former case, the analysis is left wanting: the author offers nothing more than simple solutions to a system in need of dramatic changes. On the other hand, Davidson's analysis of the current state of affairs requires more than mere "plumbing" and addresses the root causes of the crise…
Dicationic organic salts: gelators for ionic liquids
2014
Diimidazolium and dipyrrolidinium organic salts were tested for their ability to gel both organic solvents and ionic liquids. Organic salts containing 1-(1-imidazolylmethyl)-3,5-di-(3'-octylimidazolylmethyl)-benzene and 1-(N-pyrrolidylmethyl)-3,5-di-(N,N-octylpyrrolidylmethyl)-benzene cations were used. In addition to the simple bromide anion, also dianions having a naphthalene core such as 1,5- and 2,6-naphthalenedisulfonate and 2,6-naphthalenedicarboxylate were taken into account. Gelation tests demonstrated that organic salts used were able to harden ionic liquids. The materials obtained were investigated for their thermal stability and also for electric conductivity properties using mic…
Ricostruzioni paleoecologiche e paleoclimatiche degli ultimi 36.800 anni tramite foraminiferi bentonici e planctonici nei sedimenti di piattaforma co…
2010
Sectoral Business Cycle Synchronization in the European Union
2009
This paper analyses sectoral business cycle synchronization in an enlarged European Union using annual data for the period 1980-2005. In particular, we try to identify which sector for each country is driving the aggregate output business cycle synchronization. Overall, the sectors that provide the most relevant contribution are Industry, Building and Construction, and Agriculture, Fishery and Forestry. In contrast, the Services sector, the largest one in terms of valued added share, shows a relative low business cycle synchronization and volatility, implying that it contributes only marginally to the aggregate output business cycle synchronization.
Are Energy Market Integrations a Green Light for FDI?
2015
This paper studies the effect of energy market integration (EMI) on foreign direct investment (FDI). EMIs diminish energy uncertainty and price volatility in the host country and affect FDI through two channels: first, by harmonizing energy prices and, second, by reducing price dispersion. FDI may, as a result, increase both within and outside the EMI area, through energy stability mechanisms and price mechanisms, respectively. An empirical application on a global dataset including bilateral FDI data, during 2003-2012, using the gravity equation, shows that the integration of Portugal and Spain's electricity market in 2007 increased the amount of FDI's participants. Additionally, a positive…