South America
The Scientific Digital Library Online - SciELO is an digital library covering a specific assortment of Brazilian scientific journals. SciELO Luiz Gastão Bittencourt interface provides access to its serials assortment through an alphabetic list of titles or a subject list or a search form by word of serial titles, publisher names, metropolis of publication and subject. 17 The Union, the states, the Federal District, and the municipalities, are the "spheres of presidency".

317 At the moment, the Brazilian government, not like the previous, seeks to encourage this mode of transport; an example of this incentive is the challenge of the Rio-São Paulo high-pace rail , that can connect the two essential cities of the country to hold passengers.

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

Brazilian law is based on the civil legislation authorized system 198 and civil legislation concepts prevail over frequent regulation observe. The country has an extensive rail community of 28,538 kilometres (17,733 miles) in length, the tenth largest network on the planet.