The new technologies for extration of the natural gas come considerably increasing the reserves of this fuel in some countries, notadamente in China and Eastern Europe. In the United States, the current reserves are enough to take care of to the necessities of next the 90 years. The natural gas is a fossil fuel and […]

Oliveiras and Diniz Son (2001) tell that, the company must implant a system of internal control, but that this control must periodically be verified by somebody of the proper company, of form to evidence if the employees they are or not fulfilling what she was defined by the system. Mello (2002) understands that: The internal […]