Materias: “...Education; Communication; Grass roots media; Social actions and discrimination...”

“...Distintas especies forrajeras, como kikuyo (Penninsetum clandestinum) y rye grass anual (Lolium...”

“... decentralization and localism, growing involvement of the voluntary sector and the emergence of grass roots...”

“... deforestation of the original vegetation caatinga. Introduce itself grasses resistant to estiagem reducing...”

“... in grass-roots social housing movements in San José during the turbulent decade of 1980. The authors...”

“... to an irrational logging of primary forest and the introduction of new grass species. These two agents of change...”