Kardar-Parisi-Zhang asymptotics for the two-dimensional noisy Kuramoto-Sivashinsky equation

We study numerically the Kuramoto-Sivashinsky (KS) equation forced by external white noise in two space dimensions, that is a generic model for e.g. surface kinetic roughening in the presence of morphological instabilities. Large scale simulations using a pseudospectral numerical scheme allow us to retrieve Kardar-Parisi-Zhang (KPZ) scaling as the asymptotic state of the system, as in the 1D case. However, this is only the case for sufficiently large values of the coupling and/or system size, so that previous conclusions on non-KPZ asymptotics are demonstrated as finite size effects. Crossover effects are comparatively stronger for the 2D case than for the 1D system.Comment: 5 pages, 3 figures; supplemental material available at journal web page and/or on reques

Refractive elastic scattering of carbon and oxygen nuclei: The mean field analysis and Airy structures

The experimental data on the $^{16}$O$+^{12}$C and $^{18}$O$+^{12}$C elastic scatterings and their optical model analysis are presented. Detailed and complete elastic angular distributions have been measured at the Strasbourg Vivitron accelerator at several energies covering the energy range between 5 and 10 MeV per nucleon. The elastic scattering angular distributions show the usual diffraction pattern and also, at larger angles, refractive effects in the form of nuclear rainbow and associated Airy structures. The optical model analysis unambiguously shows the evolution of the refractive scattering pattern. The observed structure, namely the Airy minima, can be consistently described by a nucleus-nucleus potential with a deep real part and a weakly absorptive imaginary part. The difference in absorption in the two systems is explained by an increased imaginary (mostly surface) part of the potential in the $^{18}$O$+^{12}$C system. The relation between the obtained potentials and those reported for the symmetrical $^{16}$O$+^{16}$O and $^{12}$C$+^{12}$C systems is drawn.Comment: 10 pages, 9 figures, Phys. rev. C in pres

Regional inequalities and transnational solidarity in the European Union

Amid the eurocrisis, scholars and policy makers sought to establish an EU-wide layer of social policy, aiming to ensure common standards through the EU and to provide a degree of common social protection. While public support for European social policy has been extensively studied, we don't know how regional (i.e., subnational) inequalities relate to preferences for European social policy. We analyse the effect of regional differences in socio-economic and institutional contexts on public preferences for European social policy in general and support for European unemployment insurance in particular. Combining original survey data collected in 2018 in 12 European countries with regional-level economic and political indicators, we find that regional-level self-interest impacts individual preferences but that the effect is not always clear-cut. Contrary to expectations, people in richer regions are more supportive of EU social policy than people in poorer regions, while citizens of politically more autonomous regions tend to have a generally more positive view of EU social policy. A conjoint experiment on support for different policy variants of European unemployment insurance sheds light on these counterintuitive findings: Citizens in richer regions are indeed more supportive of EU-level social policy, but only when it has limited redistributive implications and instead affects standards; conversely citizens in poorer regions are willing to forego their opposition to EU social policy for redistributive programs

Regional inequalities and transnational solidarity in the European Union

Amid the eurocrisis, scholars and policy makers sought to establish an EU-wide layer of social policy, aiming to ensure common standards through the EU and to provide a degree of common social protection. While public support for European social policy has been extensively studied, we don’t know how regional (i.e., subnational) inequalities relate to preferences for European social policy. We analyse the effect of regional differences in socio-economic and institutional contexts on public preferences for European social policy in general and support for European unemployment insurance in particular. Combining original survey data collected in 2018 in 12 European countries with regional-level economic and political indicators, we find that regional-level self-interest impacts individual preferences but that the effect is not always clear-cut. Contrary to expectations, people in richer regions are more supportive of EU social policy than people in poorer regions, while citizens of politically more autonomous regions tend to have a generally more positive view of EU social policy. A conjoint experiment on support for different policy variants of European unemployment insurance sheds light on these counterintuitive findings: Citizens in richer regions are indeed more supportive of EU-level social policy, but only when it has limited redistributive implications and instead affects standards; conversely citizens in poorer regions are willing to forego their op- position to EU social policy for redistributive programs

Intracranial Suppurative Complications of Sinusitis

Peer reviewe

Integration of crops, livestock, and forestry: a system of production for the Brazilian Cerrados.

Some of the most promising and at the same time some of the most challenging areas of future food production are found in the savannas of South America. Integrating cropping, livestock, and forestry in these regions can increase the eco-efficiency of agricultural production. This chapter presents a case study of an integrated crop, livestock, and forestry system in Brazil. The study area is in Goiás State in the Cerrado region, a vast savanna covering almost one quarter of Brazil's land area. About half of the area suited to agriculture in the Cerrado is under cultivated pasture, but much of this is degraded as a result of overgrazing. The systems studied in this report include different arrangements to test productivity, profitability and sustainability of eucalyptus, crops, and pastures. Findings demonstrated that integrated crop, livestock, and forestry systems are economically and technically feasible in the Cerrados. In addition to producing food of high biological value (meat and milk), cultivated pasture provides other important environmental benefits, including long-term ground cover, carbon fixation, increases in soil organic matter content; and reduction in the emission of greenhouse gases