Results 41 to 50 of about 6,479 (253)

Satellite and Reanalysis Dataset Dependence of ETCCDI Extreme Precipitation Trends in Paraná, Southern Brazil

International Journal of Climatology, EarlyView.
Extreme precipitation trends detected in Paraná, Southern Brazil (1983–2024), are strongly conditioned by the dataset used, with reanalyses indicating coherent inland drying and longer dry spells, observations retaining stronger mesoscale heterogeneity, and satellite products often showing declines in short‐duration extremes. Monthly diagnostics reveal
Paulo Miguel de Bodas Terassi, Jakeline Baratto, Vitor Hugo Rosa Biffi   +2 more
wiley   +1 more source

Novas geopolíticas em torno de Foz do Iguaçu e Itaipu

Conversas & Controvérsias, 2018
Há mais de um século, as relações diplomáticas entre Brasil, Argentina e Paraguai na tríplice fronteira são marcadas pela intensidade. Após conflitos territoriais e fronteiriços nos séculos XIX e XX, o uso dos recursos hídricos ganhou o ...
Guillaume Leturcq
doaj   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves, Priscila M. O. Muniz Cunha, Shênia Patrícia Corrêa Novo, Lorena Oliveira Souza Soares, Tatiana Dillenburg Saint‐Pierre, Fábio Veríssimo Correia, André Luís de Sá Salomão, Rachel Ann Hauser‐Davis, Enrico Mendes Saggioro   +8 more
wiley   +1 more source

Hydrogen Production Plant Retrofit for Green H₂: Experimental Validation of a High-Efficiency Retrofit of an Alkaline Hydrogen Plant Using an Isolated DC Microgrid

Energies
Given the climate change observed in the past few decades, sustainable development and the use of renewable energy sources are urgent. In this scenario, hydrogen production through electrolyzers is a promising renewable source and energy vector because ...
Rogerio Luiz da Silva Junior, Filipe Tavares Carneiro, Leonardo Bruno Garcial Campanhol, Guilherme Gemi Pissaia, Tales Gottlieb Jahn, Angel Ambrocio Quispe, Carina Bonavigo Jakubiu, Daniel Augusto Cantane, Leonardo Sostmeyer Mai, Jose Alfredo Valverde, Fernando Marcos Oliveira   +10 more
doaj   +1 more source

O projeto educacional da Itaipu Binacional para a margem direita paraguaia (1974-1985) (The Binational Itaipu educational project for the paraguayan right margin (1974-1985))

Emancipação, 2022
O artigo analisa o “Projeto Educacional da Itaipu Binacional para a margem direita paraguaia”, viabilizado durante o período de construção da Usina Hidrelétrica Binacional de Itaipu, entre 1974 e 1985.
Denise Kloeckner Sbardelotto, André Paulo Castanha   +1 more
doaj   +1 more source

Dam Management in the Era of Climate Change

Mathematical Finance, Volume 36, Issue 4, Page 870-895, October 2026.
ABSTRACT Climate change has a dramatic impact, particularly by concentrating rainfall into a few short periods, interspersed with long dry spells. In this context, the role of dams is crucial. We consider the optimal control of a dam, where the water level must neither exceed a designated safety threshold nor fall below a minimum level to ensure ...
Cristina Di Girolami, M'hamed Gaïgi, Vathana Ly Vath, Simone Scotti   +3 more
wiley   +1 more source

Birdwatching as a regenerative tourism practice: evidence from Brazilian public policy

RUDN Journal of Ecology and Life Safety
The development of regenerative tourism has been proposed as a response to the limitations of conventional sustainable tourism, particularly its restricted capacity to address long-term socioecological challenges.
Marcos R. Pisarski Jr.
doaj   +1 more source

Infrastructure as a diplomatic tool: the role of Itaipu in Brazilian foreign policy discourse and practice (1960-1979) [PDF]

Revista Brasileira de Política Internacional
This article examines Brazil’s diplomatic strategy in creating the Itaipu hydroelectric dam, emphasizing its cooperative frameworks with Paraguay and Argentina to foster regional integration. It analyzes how Brazil leveraged the Itaipu negotiations (1960-
Wilton Dias
doaj   +1 more source

Redes de Itaipu:

Museologia & Interdisciplinaridade, 2021
O artigo descreve a pesquisa realizada durante o período de 2017 a 2019 no Museu de Arqueologia de Itaipu. O trabalho tinha como meta o desenvolvimento de um modelo de documentação museal para o processamento técnico e a difusão digital da Coleção Pessoas e Memórias, composta por 40 (quarenta) depoimentos colhidos no Inventário Participativo de Pessoas
openaire   +2 more sources

Contrasting Temporal Dynamics of Ostracod (Crustacea) Communities in Protected and Impacted Areas in a Brazilian Floodplain

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 9, September 2026.
ABSTRACT Environmental integrity is vital for the long‐term preservation of freshwater biodiversity, which is currently among the most threatened on Earth due to anthropogenic pressures such as dam construction. The present study investigated the temporal responses of ostracod communities over 8 years (2017–2024) in the Upper Paraná River floodplain ...
Jhony Kenji Nakata, Jonathan Rosa, Koen Martens, Janet Higuti   +3 more
wiley   +1 more source