Search results for " Mar"
showing 10 items of 9057 documents
Effects of economic policy uncertainty on stock and bond market integration
2015
Tässä pro gradu – tutkielmassa tarkastellaan sitä , miten talouspoliitti nen epävarmuu s vaikut taa osake - ja korko markkina tuottojen väliseen yhteyteen . Tutkimuksessa saadut e mpiiriset havainnot viittaavat siihen, että kun reaalit alouden kasvu ylittää inflaati o- vauhdin , talouspoliittisen epävarmuuden kasvu on tekijä, joka vähentää osake - ja ko r- ko markkina tuottojen korrelaatiota . Sen sijaan kun inflaatio vauht i ylittää reaalitalouden kasvun, jota tässä tutkielmassa on mitattu S&P 500 i ndeksin osinkojen jaolla, kasvava talouspoliittinen epävarmuus vahvistaa osake - ja korkomarkkinatuottojen korrelaatiota . Tutkimus on toteutettu Yhdysvaltojen rahoitusmarkk inoiden aineistolle…
Essays on emerging financial markets, political institutions and development differences
2014
Determinants of current account balances
2011
A Stochastic Decision Process Model for Optimization of Railway and Tramway Track Maintenance by means of Image Processing Technique
2013
One of the key targets for an efficient transport network management is the search for proper maintenance policies to guarantee acceptable safety and quality standards in the travel and to optimize available resource allocation. Methodologically, the proposed model presented in this paper uses the stochastic dynamic programming and in particular Markov decision processes applied to the rail wear conditions for the railway and tramway network. By performing the integrated analysis of the classes of variables which characterize the rail quality (in terms of safety), the proposed mathematical approach allows to find the solutions to the decision-making process related to the probability of det…
Chiens chez Modiano: análisis interdisciplinar de la representación animal en su obra
2017
Más que por un animalismo strictu sensu, la obra de Patrick Modiano se caracteriza por un profundo animalismo latente, en consonancia con una escritura minimalista marcada por la atenuación y por la poética de la ambigüedad. La investigación desvela cómo los cuentos de Marcel Aymé aportan a su imaginario de lector infantil un mundo en el que los animales viven y dialogan con una pareja de hermanas con las que el pequeño Modiano se identifica junto a Rudy, su hermano pequeño. Los accidentes que sufrieron dos perros con los que Modiano tuvo relación de niño le hicieron percibir una experiencia de la muerte, que precedió al trauma de la temprana desaparición de Rudy. A la influencia de Aymé se…
Studying the relationships between hourly precipitation extremes and dewpoint temperature in Sicily.
2019
According to the well-known Clausius-Clapeyron relation, the maximum moisture content of the atmosphere increases with approximately 7% per degree temperature raise (CC-scaling rate). Under the hypothesis that relative humidity does not change, an increase in the water vapor should occur at the same rate. For this reason we could expect for the coming years an increase in the intensity of extreme precipitation as a consequence of the global climate warming. Trend on precipitation extremes and possible links to changes in atmospheric temperature and moisture are investigated in different parts of the world, and a number of observational studies has exhibited scaling rates that are either hig…
Trend of inter-arrival times of rainfall events for Italian Sub-Alpine and Mediterranean areas
2011
A simple scaling procedure to assess the impact of climate change on extreme precipitation
2017
In this study we used the products of the Regional Climate Models (RCMs) to evaluate the impact of climate alterations on extreme events across the Region of Sicily (Italy). Data have been retrieved from EURO-CORDEX simulations at 12 km of spatial resolution. Because of the low resolution, the RCMs products are likely unsuitable to reproduce consistently sub-daily heavy precipitations. For this reason, extreme events at daily scale were first checked out by comparing the quantiles estimated from raingauge observations and RCMs outputs. Secondly, we implemented a temporal downscaling approach to estimate rainfall for durations of 1, 3, 6, 12, 24 hours from the modeled daily precipitation. La…
A physically-based and distributed tool for modeling the hydrological and mechanical processes of shallow landslides
2015
This work presents the capabilities of a model, i.e. the tRIBS-VEGGIE-Landslide, in two different versions, i.e. developed within a probabilistic framework and coupled with a root cohesion module. The probabilistic model treats geotechnical and soil retention curve parameters as random variables across the basin and estimates theoretical probability distributions of slope stability and the associated “factor of safety” commonly used to describe the occurrence of shallow landslides. The derived distributions are used to obtain the spatiotemporal dynamics of probability of failure, conditioned on soil moisture dynamics at each watershed location. The framework has been tested in the Luquillo …
DEM-resolution control on rainfall-triggered landslide modeling within a triangulated network-based model
2019
Catchment slope distribution significantly controls rainfall-triggered landslide modeling, in both direct and indirect ways. Slope directly determines the soil volume associated with instability. Indirectly, it affects the subsurface lateral redistribution of soil moisture across the basin, which in turn determines the water pore pressure conditions that impact slope stability. It is thus clear that the accuracy in reproducing slope distribution may be crucial in slope stability analysis. The resolution of the Digital Elevation Model (DEM) regulates the description of the topography. The correlation between raster resolution and landslide model outputs has been investigated in the literatur…