Bounding the residual finiteness of free groups

"Vegeu el resum a l'inici del document del fitxer adjunt."

Gestión de expedientes para ayuntamientos

Aplicació web que pot ser desplegada en qualsevol contenidor d'aplicacions JAVA, sigui o no "FULL-compliant" J2EE. Mostra com amb molt poc codi s'aconsegueix una aplicació que té gestió d'usuaris, permisos, expedients, etcètera. Fins i tot s'ha inclòs la funcionalitat d'emmagatzemar / recuperar fitxers a la base de dades.

¿Cisne negro o pollo del montón? El déficit fiscal catalán en perspectiva

En esta nota se cuestiona la tesis de que el déficit fiscal de Catalunya es mucho mayor que el que registran otras regiones con niveles similares de renta relativa en los países de nuestro entorno. Cataluña encaja perfectamente en el patrón de redistribución territorial que se observa en Estados Unidos cuando abstraemos del tamaño de la Administración Central y trabajamos con el gasto que ''vuelve'' a cada territorio por euro o dolar de impuestos soportados. Esto hace muy difícil pensar que el saldo fiscal catalán pueda ser muy inferior al que presentan las regiones ricas de los países de Europa continental, que generalmente cuentan con sectores públicos mayores y mucho más redistributivos que el norteamericano.

Socio-economic inequalities in health in Catalonia

In this paper we measure the degree of income related inequality in mental health as measured by the GHQ instrument and general health as measured by the EQOL-5D instrument for the Catalan population. We find that income is the main contributor to inequality, although the share of inequality in mental health that can be explained by income is much greater than the corresponding share of inequality in general health. We also find that the variation in demographic structure reduces income related inequality in mental health but increases income related inequality in general health. The regional variations in both instruments for health are striking, with the Barcelona districts faring relatively bad with respect to the rest of geographical areas and Lleida being the health region where, all else held equal, the population reports the greatest level of health. A big share of inequality in the two health measures, but specially mental health, is due to the favourable position in both health and income of those who enjoy an indefinite contract with respect to the rest of individuals. We also find that risky working conditions affect both health measures and are able to explain an important share of socio-economic inequality.

Assessment of the discrimination of animal fat by FT_Raman spectroscopy

In recent years, there has been an increased attention towards the composition of feeding fats. In the aftermath of the BSE crisis all animal by-products utilised in animal nutrition have been subjected to close scrutiny. Regulation requires that the material belongs to the category of animal by-products fit for human consumption. This implies the use of reliable techniques in order to insure the safety of products. The feasibility of using rapid and non-destructive methods, to control the composition of feedstuffs on animal fats has been studied. Fourier Transform Raman spectroscopy has been chosen for its advantage to give detailed structural information. Data were treated using chemometric methods as PCA and PLS-DA which have permitted to separate well the different classes of animal fats. The same methodology was applied on fats from various types of feedstock and production technology processes. PLS-DA model for the discrimination of animal fats from the other categories presents a sensitivity and a specificity of 0.958 and 0.914, respectively. These results encourage the use of FT-Raman spectroscopy to discriminate animal fats.