EDITORIAL v. 8, n. 1, janeiro de 2015

Editorial, Volume 8, Issue 1

A new vocabulary item has been added to English dictionaries: Covid-19. For linguists, the addition of a meaningful linguistic element to any language should change the whole language as, for T. S. Eliot, a new poem changes the whole literature of a nation. But let us see how seriously the addition of the vocabulary item Covid-19 might change the English language. According to Cambridge online ...

v 1 2 8 N ov 1 99 8 Spacetime Exterior to a Star

In many circumstances the perfect fluid conservation equations can be directly integrated to give a Geometric-Thermodynamic equation: typically that the lapse N is the reciprocal of the enthalphy h, (N = 1/h). This result is aesthetically appealing as it depends only on the fluid conservation equations and does not depend on specific field equations such as Einstein’s. Here the form of the Geom...

XXX Simpósio Brasileiro de Banco de Dados - Short Papers, Petrópolis, Rio de Janeiro, Brasil, October 13-16, 2015

Workflow patterns (WfPs) have guided the design and implementation of Process-Aware Information Systems (PAIS) for at least ten years. However, most of the PAISs are still not able to support the complex behaviors defined by WfPs. In this paper, we argue that a flexible PAIS that integrates the perspectives (activities, events, and data) and ensures transactional properties can widely support t...

Editorial: NAR Awards 2015

2 v 1 1 6 N ov 1 99 8 Mergers and Galaxy Assembly

Theoretical considerations and observational data support the idea that mergers were more frequent in the past. At redshifts z = 2 to 5, violent interactions and mergers may be implicated by observations of Lyman-break galaxies, sub-mm starbursts, and active galactic nuclei. Most stars in cluster ellipticals probably formed at such redshifts, as did most of the halo and globular clusters of the...