Results 41 to 50 of about 39,598 (223)

Hyperdominant Trees Reveal Savanna Vulnerability Under Climate Change

open access: yesGlobal Change Biology, Volume 32, Issue 4, April 2026.
The Brazilian Cerrado's forest structure relies disproportionately on just 30 hyperdominant tree species, which represent 50% of all individuals despite accounting for only 2% of species richness. This study evaluates their vulnerability under climate change scenarios for 2100.
Facundo Alvarez   +32 more
wiley   +1 more source

Ciência Sem Fronteiras na UFSC: A Mobilidade Estudantil Em Perspectiva Sociológica [PDF]

open access: yes, 2015
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Curso de Ciências Sociais.O presente trabalho tem como objeto de estudo o Programa Ciência Sem Fronteiras – CsF – e sua implementação na Universidade ...
Martinez, Karen Lucia
core  

Preservar, esconder, mentir e calar: os arquivos da repressão no Brasil

open access: yesAcervo, 2016
Resenha do livro "Lugar nenhum: militares e civis na ocultação dos documentos da ditadura", de Lucas Figueiredo (Companhia das Letras, 2015).
Francisco Alcides Cougo Junior
doaj  

Indígenas en ciudades “pares” en la Amazonia, entre la invisibilidad y la territorialidad urbana

open access: yesAnuário Antropológico, 2018
Baseado numa revisão retrospectiva e focalizando um amplo diálogo com a antropologia, este artigo apresenta o processo de invisibilização e posterior revitalização étnica, sociocultural e política dos povos indígenas que têm habitado, e habitam, espaços
Carlos Zárate Botía   +1 more
doaj   +1 more source

Mammal defaunation leads to biotic homogenization of plant communities in tropical rainforests

open access: yesEcology, Volume 107, Issue 3, March 2026.
Abstract Biotic homogenization is the process in which species communities become increasingly similar across different regions over time. This phenomenon has substantial ecological, evolutionary, and economic implications, primarily driven by human activities such as habitat destruction, invasive species introduction, and climate change.
Luiz Guilherme dos Santos Ribas   +9 more
wiley   +1 more source

Animal–Plant Interactions Under Defaunation: Consequences for Amazonian Trees of Commercial Interest

open access: yesBiotropica, Volume 58, Issue 2, March 2026.
We experimentally investigated the effects of medium‐ and large‐sized mammal defaunation on the removal and fate of seeds from economically important forest species in Amazonian forests. Our results show that mammal exclusion significantly reduced seed removal, although the magnitude of this effect varied among plant species.
Arlison Castro   +5 more
wiley   +1 more source

Iniciativas para aperfeiçoar a articulação entre as esferas militar e diplomática: uma proposta

open access: yesColeção Meira Mattos, 2008
Os tempos modernos, caracterizados por incertezas, descaminhos e guerras assimétricas, exigem maior aproximação funcional e conhecimento entre a área militar e a carreira diplomática.
Rui Cesar Pontes Braga
doaj   +2 more sources

Strenuous Exercise Alters Brain Creatine and Glutamate/Glutamine (Glx) in Humans: Evidence From Dynamic 1H‐MRS and 1H‐MRSI

open access: yesThe FASEB Journal, Volume 40, Issue 2, 31 January 2026.
Strenuous exercise induces transient, region‐specific neurochemical changes in the human brain. Dynamic proton magnetic resonance spectroscopy (1H‐MRS) and spectroscopic imaging (1H‐MRSI) revealed reductions in total creatine (tCr), and elevations in glutamate/glutamine (Glx), and lactate (Lac) in frontal and parietal brain regions.
Jedd Pratt   +6 more
wiley   +1 more source

Naming the Wolves: Consumer Credit and Rentier Financialisation on the Brazilian Periphery

open access: yesAntipode, Volume 58, Issue 1, January 2026.
Abstract Recent social policy in Brazil has centred on a vision for financial inclusion that claims to alleviate poverty through credit‐based consumption. We argue that, contrary to these claims, Brazil's consumer credit boom has entrenched a financialised macroeconomic model in which debt and rentierism have become motors of the national economy ...
Jessica Sklair   +2 more
wiley   +1 more source

Dissertações 2020

open access: yes, 2020
Nessa seção estão reunidas as dissertações defendidas em 2020 pelos mestrandos do Programa de Pós-Graduação em Teologia da Universidade Católica de ...
Fronteiras, Editorial
core   +1 more source

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