The bacterioplankton plays a key role in the functioning of aquatic ecosystems and biogeochemical cycles. Despite of the growing interest in studying the ecology of such microorganisms, little is known about how bacterial ...

The German philosopher Ferdinand Tonnies, in his work Gemeinschaft und Gesellschaft (1887), created an important system of social analysis which indicates, based on the human desires, the formation of communities and ...

Background: Oral diseases are among the most prevalent non-communicable diseases worldwide, disproportionally affecting vulnerable populations. The Community of Claverito is one of many informal urban floating communities ...

The garimpo gold mining activity has released about 2.500 tons of mercury in the Brazilian Amazonian environment in the 1980-1995 period. The northern region of Mato Grosso State, an important gold mining and trading area ...

The garimpo gold mining activity has released about 2.500 tons of mercury in the Brazilian Amazonian environment in the 1980-1995 period. The northern region of Mato Grosso State, an important gold mining and trading area ...

Amazonian tropical rainforests harbor the largest biodiversity on Earth. Over the past decade, there has been increasing interest in understanding how such diversity can coexist in small areas. One broadly accepted explanation ...

Soil from the Amazonian region is usually regarded as unsuitable for agriculture because of its low organic matter content and low pH; however, this region also contains extremely rich soil, the Terra Preta Anthrosol. A ...