Results 31 to 40 of about 771 (139)

The Key Architects of Brazil's Foreign Policy and the Quest for Multipolarity Under Lula

open access: yesBulletin of Latin American Research, Volume 45, Issue 2, April 2026.
ABSTRACT This article analyses the trajectories and worldviews of three central architects of Brazilian foreign policy during Lula's first two terms—Marco Aurélio Garcia, Samuel Pinheiro Guimarães and Celso Amorim. It argues that their progressive and anti‐imperialist orientations, aligned with the Workers' Party's broader project, were decisive in ...
Tiago Soares Nogara
wiley   +1 more source

A Scoping Review of Construction and Demolition Waste Management and the Sustainable Development Goals: Evidence From Brazil

open access: yesSustainable Development, Volume 34, Issue S2, Page 544-555, March 2026.
ABSTRACT Construction and demolition waste (CDW) management poses significant challenges but also offers opportunities for advancing sustainable development, especially in rapidly urbanizing countries such as Brazil. This scoping review examines the relationship between CDW management practices in Brazil and the United Nations Sustainable Development ...
Flavio Pinheiro Martins   +3 more
wiley   +1 more source

Monoicy in A. angustifolia (Bert.) O. Kuntze (Araucariaceae): I. Morphological aspects of the reproductive structures

open access: yesAnais da Academia Brasileira de Ciências, 2009
Araucaria angustifolia (Bert.) O. Kuntze is a dioecious conifer species native of Brazil. The rare occurrence of monoiceous specimens have been attributed to pathogenic infections or other injuries in adult trees.
Valdir M. Stefenon   +1 more
doaj   +1 more source

Sulfur‐Induced Lattice Modulation and Charge‐Transport Enhancement in MnO2 Nanowires for Hybrid Energy Storage

open access: yesEnergy Storage, Volume 8, Issue 1, February 2026.
ABSTRACT In this study, sulfur‐modified MnO2 nanowires (MnO2‐S) were synthesized via a two‐step hydrothermal and solid‐state process and evaluated as battery‐type electrodes for hybrid supercapacitors. Transmission electron microscopy (TEM) and high‐resolution TEM confirmed morphological integrity, while structural changes induced by sulfur inclusion ...
Jhonatam Pinheiro Mendonça   +6 more
wiley   +1 more source

Spore density and root colonization by arbuscular mycorrhizal fungi in preserved or disturbed Araucaria angustifolia (Bert.) O. Ktze. ecosystems Densidade de esporos e colonização radicular por fungos microrrízicos arbusculares em ecossistemas de Araucaria angustifolia (Bert.) O. Ktze. preservados e impactados

open access: yesScientia Agricola, 2006
Araucaria angustifolia (Bert.) O. Ktze., a native forest tree from Brazil, is under extinction risk. This tree depends on arbuscular mycorrhizal fungi for growth and development, especially in tropical low-P soils but, despite being a conifer, Araucaria ...
Milene Moreira   +3 more
doaj   +1 more source

Simulating climate change scenarios established by the Intergovernmental Panel on Climate Change in aquatic mesocosms

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 2, February 2026.
Abstract Climate change poses a major threat to ecosystems worldwide, with temperature changes being a key driver of ecological disruption in aquatic environments due to the limited ability of many aquatic species to relocate in response. Despite advances in aquatic experimental approaches to temperature control, most studies rely on simplified warming
Tauany Rodrigues   +5 more
wiley   +1 more source

Análise da rentabilidade econômica dos reflorestamentos com essências nativas brasileiras: o caso do Estado de São Paulo Economic profitability analysis of reforestation with native trees: the state of São Paulo's case

open access: yesRevista de Economia e Sociologia Rural, 2002
No presente trabalho, analisou-se a rentabilidade econômica dos reflorestamentos com essências nativas brasileiras destinados à produção de toras, considerando como caso em estudo o Estado de São Paulo.
José Arimatéia Rabelo Machado   +1 more
doaj   +1 more source

Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna

open access: yesBiological Reviews, Volume 101, Issue 1, Page 74-105, February 2026.
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
João C. F. Cardoso   +6 more
wiley   +1 more source

Implicações Terapêuticas dos Novos Conhecimentos Sobre a Fisiopatologia da Dermite Atópica

open access: yesRevista da Sociedade Portuguesa de Dermatologia e Venereologia, 2017
A dermite atópica é uma dermatose inflamatória crónica que afeta principalmente crianças, podendo também manifestar- -se em idade adulta. Apesar de estar associada a um forte impacto na qualidade de vida, os avanços terapêuticos são ainda muito precários.
Ana Sofia Borges   +2 more
doaj   +1 more source

The Role of Environmental Factors on Visual Communication in Neotropical Anurans

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 2, February 2026.
ABSTRACT Aim Visual signals are a widespread behavioural attribute of communication among vertebrates, often employed during intrasexual competition or mate attraction, ultimately influencing reproductive success. However, the environmental factors driving visual signal evolution remain poorly understood.
Leonardo Matheus Servino   +2 more
wiley   +1 more source

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