No abstract

The Taquari River Basin, located in Poços de Caldas Alkaline Complex, in the southern portion of Minas Gerais state, Brazil, is situated in an old volcanic caldera. Due to its chemical and radiological characteristics, it is an area of economic and mineral interest, and is also home to diverse flora and fauna systems. In its surroundings, there are agricultural areas, industries (active and inactive) and urban and rural centers. This work investigated the total and potentially bioavailable concentrations of major and trace elements for the evaluation of geogenic and anthropogenic contamination potentials in the water bodies. The results show that there is an anthropogenic contribution (fertilizers and mining tailings) in some sectors of the Taquari River Basin, generating possible concerns regarding the quantity of elements that may be transferred to the water bodies. Furthermore, there is the striking geogenic contribution from naturally enriched areas, presenting distinct situations that generate an increase in the concentration of chemical elements in the water bodies.

No abstract

The construction of a network of action between the State and civil society is a point that requires a lot of attention when discussing local development strategies. In the Brazilian case, the theme has constitutional importance when observing that the creation of a solidary society is one of the fundamental objectives of the Republic. Despite this, there is still a low Brazilian academic production on the topic of networks between the public power and private non-profit institutions. Thus, in this work, the objective is to identify theoretical works in this field through a bibliographic survey of national literature. For this, an analysis of citations of academic works is made, through which delimitations are made to concentrate on the theme of creating networks between the public and private sectors. As a result, it is indicated in this work that national productions found have a focus on assessing the effects of networks on the development of affected communities, such as the empowerment of the group of direct actors and modification of state actions by the influence of the established partnership relationship, on the other hand, theoretical production on the configuration of these networks is still low

The Taquari River Basin, located in the Alkaline Complex of Poços de Caldas, in the south of Minas Gerais, Brazil, is situated in an old volcanic caldera. In the study area there are fields and pastures; agriculture with cultivation of vegetables; rose plantations; and native forest, in addition to the Mineral Treatment Unit of Caldas (UTM-Caldas), which is part of the Industrial Complex of Poços de Caldas (CIPC), a uranium mining and processing facility. The main objective of this work was to investigate the isotopic Pb signatures of river sediments, rocks, mining tailings and fertilizer samples collected in the region surrounding UTM-Caldas in order to identify environments with influences from geogenic and / or anthropogenic sources. The results showed that there is an anthropic contribution (fertilizers and mining tailings) in some sectors of the Taquari river basin, generating possible concerns about the amount of elements that can be transferred to the water bodies. In addition, there is a significant geogenic contribution of naturally enriched areas, which have distinct situations that also generate an increase in the concentration of chemical elements in water bodies.