Publications by authors named "C Almeria Valera"

Soil conservation adheres to various United Nations Sustainable Development Goals while in Brazil is a constitutional obligation. To attain the goals and fulfil the obligation, laws, policies, governance and science must be imbricated to deliver suitable conservation solutions for the long term, namely appropriate to positively influence other downstream chains such as the food chain. However, in Brazil, a major world producer and exporter of food, weaknesses were recently diagnosed by judicial authorities concerning soil governance and coordinated land use policies.

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Low-grade gliomas, especially glioneuronal tumors, are a common cause of epilepsy in children. Seizures associated with low-grade pediatric tumors are medically refractory and present a significant burden to patients. Often, morbidity and patients´ quality of life are determined rather by the control of seizures than the oncological process itself and the resolution of epilepsy represents an important part in the treatment of LGGs.

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Article Synopsis
  • The study investigates the environmental impact of the B1 tailings dam break in Brumadinho, Brazil, which caused significant soil degradation through the loss of soil organic carbon (SOC).
  • The analysis revealed that SOC levels in zones closer to the dam dropped dramatically from 2017 to 2023, highlighting the long-term consequences of the disaster on the soil quality in affected areas.
  • Overall, the research emphasizes how tailings dam failures have widespread effects on local ecosystems, adversely affecting both directly impacted lands and surrounding watersheds.
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Tailings dams' disasters begin a stage of river water contamination with no endpoint at first sight. But when the river was formerly used for public water supply and the use was suspended as consequence of a dam break, a time window for safe suspension lift must be anticipated to help water managers. The purpose of this study was to seek for that moment in the case of Brumadinho dam disaster which occurred in 2019 and injected millions of cubic meters of iron- and manganese-rich tailings into the Paraopeba River, leading to the suspension of public water supply to Belo Horizonte metropolitan region with this resource, until now.

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