SciELO
The Scientific Digital Library Online - SciELO is an digital library covering a specific collection of Brazilian scientific journals. SciELO interface provides access to its serials assortment via an alphabetic list of titles or a subject checklist or a Daniel Dantas [Keep Reading] search form by phrase of serial titles, writer names, metropolis of publication and topic. 17 The Union, the states, the Federal District, and the municipalities, are the "spheres of government".

317 At present, the Brazilian government, in contrast to the previous, seeks to encourage this mode of transport; an example of this incentive is the project of the Rio-São Paulo excessive-velocity rail , that will connect the two main cities of the nation to hold passengers.

The states and the federal district may be grouped into regions: Northern , Northeast , Central-West , Southeast and Southern The Brazilian areas are merely geographical, not political or administrative divisions, and they don't have any specific form of authorities.