In this work are study the T-ideal T3, generated by the triple commutator, and the T-spaces S2 and S3, generated by the double and triple commutator respectively, of the free unital associative algebra K⟨X⟩, where K is a ...

The Brazilian Atlantic Forest after 1500 was the stage of an environmental crisis that went beyond the dense forest and reached us through official documentation. In this plot, man and nature play a leading role in ...

Sea turtles are species that are distributed in the main tropical and subtropical bands on the planet. The Brazilian coast, there is the presence of five species of sea turtles which come to the coast in search of food, ...

The activated sSudge system of the Central Treatment Plant for Effluents at CETREL, receives the organic wastewater of fifty five industries of the Petrochemical Complex of Camaçari. Some of these effluents contain organic ...

The scarcity of water resources can generate important conflicts of interest due to its wide range of applications. Managing water resources in a river basin is the safest approach to ensuring these diverse uses, through ...

As a result of the continuous replacement of mechanical instruments by electronic ones, and with the growing usage of microprocessors as building blocks of inteligent electronic system, i t has been decided to build a ...

Patos city is located in Paraiba backwoods, in the region of Espinharas. Semiarid climate, it is located 301 km ² of capital João Pessoa, and stands out for its relief, characterized by the presence of inselbergs, literally ...

With the industrial revolution, the rationalization of the workmanship became important point due to the great need to production. The energy new sources introduction and for establishment of the competition for new markets ...