192 research outputs found
Study of 2-D Photonic Band Gaps for NIR applications
Treballs Finals de Grau de FĂsica, Facultat de FĂsica, Universitat de Barcelona, Curs: 2016, Tutors: Albert Romano i Mauricio MorenoThis work consists of the study and characterisation of the photonic band gaps (PGB) for different 2D-crystal structures. It has run with a simulating software called Optiwave. We are going to use two methods to study photonic crystals, the Finite-difference time-domain method (FDTD) and the Plane wave expansion method (PWE). This study has been focus on square and hexagonal lattice formed by dielectric cylinders in water, thus one of the important parameters is the ratio radius-to-pitc
Welfare spending and ethnic heterogeneity: evidence from a massive immigration wave [WP-IEB]
The aim of this paper is to examine the relationship between ethnic heterogeneity and redistribution, by using the recent and massive arrival of immigrants in Spain. Specifically, we focus on the effect of changes in immigrant density, recorded between 1998 and 2006, on contemporaneous changes in municipal welfare spending. We instrument for immigrant density using established settlement patterns per country of origin so as to assign predicted flows of immigrants to municipalities. We find that welfare spending increased less in those municipalities that recorded the largest increases in immigrant density. We also provide evidence of a positive relationship between immigrant density and the vote share accruing to right-wing parties. Hence, our results are consistent with theories that predict a negative relationship between ethnic heterogeneity and redistribution
Marine Information over the Network
Marine Technology Workshop (Martech05), 17-18 November 2005, Vilanova i la GeltrĂș, Barcelona.-- 2 pages, 5 figuresPeer Reviewe
Immigration and local spending in social services: evidence from a massive immigration wave
The aim of this paper is to analyze the relationship between immigration and redistributive public spending by using the recent, massive arrival of immigrants in Spain. Specifically, we focus our analysis on the effect of 1998-2006 changes in local immigrant density on contemporaneous changes in municipal spending in social services. To address the potential endogenous location of immigrants, we adopt an instrumental variables approach that uses the distribution of rental housing in 1991 to predict the location of immigrant inflows. The results indicate that (per capita) social spending increased less in those municipalities that recorded the largest increases in immigrant density. We interpret our results as a reduction in natives' demand for redistributive public spending
Obsea servers network
In this paper will be presented an overview of the information treatment
servers structure used in the OBSEA project explaining and justifying the chosen topology.Peer Reviewe
Interoperable data management and instrument control, plug and play concepts and sensor registry experiences at OBSEA
Postprint (published version
Data acquisition system development for EGIM on EMSODEV EU Project
Garcia, O. ... et al.-- 7th International Workshop on Marine Technology â Martech Workshop 2016, 26-28 October 2016, Barcelona.-- 2 pages, 5 figuresThe EMSODEV1 (European Multidisciplinary Seafloor and water-â column Observatory DEVelopment) is a UE project whose general objective is to set up the full implementation and operation of the EMSO distributed Research Infrastructure (RI), through the development, testing and deployment of an EMSO Generic Instrument Module (EGIM). The EGIM module will measure various ocean parameters in a long-term consistent, accurate and comparable manner. These measurements are critical to respond accurately to the social and scientific challenges such as climate change, changes in marine ecosystems, and marine hazards. Here we present the current status of the EGIM data acquisition system developmentThis study benefited from H2020 INFRADEV- â3- â2015 EMSODEV Project n°676555Peer Reviewe
Welfare spending and ethnic heterogeneity: Evidence from a massive immigration wave
The aim of this paper is to examine the relationship between ethnic heterogeneity and redistribution, by using the recent and massive arrival of immigrants in Spain. Specifically, we focus on the effect of changes in immigrant density, recorded between 1998 and 2006, on contemporaneous changes in municipal welfare spending. We instrument for immigrant density using established settlement patterns per country of origin so as to assign predicted flows of immigrants to municipalities. We find that welfare spending increased less in those municipalities that recorded the largest increases in immigrant density. We also provide evidence of a positive relationship between immigrant density and the vote share accruing to right-wing parties. Hence, our results are consistent with theories that predict a negative relationship between ethnic heterogeneity and redistribution.welfare spending, ethnic heterogeneity, redistribution, immigration
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