No abstract

Titanium films were deposited on quartz, glass, polyamide and PET substrates in a high vacuum system at room temperature and their electrical resistance monitored in vacuo as a function of thickness. These measurements indicate that a low electrical resistance layer is formed in a gas-solid reaction during the condensation of the initial layers of Ti on glass and quartz substrates. Layers begin to show relative low electrical resistance at around 21 nm for glass and 9nm for quartz. Samples deposited on polyamide and PET do not show this low resistance feature.

Access to public health has been, is, and will be a necessary right for any person in the world, motivating the proposal of universalist approaches as the best way to provide this service. However, we know that universalism is limited, at best, when it concerns immigrants. In this article, we focus on Costa Rica’s and Uruguay’s health systems, generally acknowledged as Latin America’s most universal, to argue that there are important barriers that limit immigrants’ access to public health insurance and health care. Applying a model based on the work by Niedzwiecki and Voorend (2019) that allows us to disaggregate the barriers to access into legal, institutional, de facto, and agency barriers, our analysis shows that migration and social policy interact to create barriers of different magnitudes, often conditioning healthcare access on migratory status, formal employment, and/or purchasing power. These limitations to universal social protection create important vulnerabilities, not only for the immigrants involved, but also for the health systems, and therefore for public health, highlighting the limitations of universalism.

mixture analysis of basic meteorological parameters: Temperature and relative humidity. Tecnología en Marcha.

In this contribution, we present the simulations of convective plasma cells of the Sun in two dimensions. With a simple stream function, it is possible to visualize multiple n × n convective cells. To obtain the simulation, we solve the magnetic diffusion equation with a fourth order scheme. Some applications for this simulations are also presented.