Results 31 to 40 of about 21,344 (228)

Belostomatidae (Heteroptera: Nepomorpha) held in the Invertebrate Collection of the Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil: inventory and new distributional records

open access: yesPapéis Avulsos de Zoologia, 2019
Belostomatidae is a family of giant water bugs with 52 valid species in Brazil. Here, we list 33 valid species housed in the Invertebrates Collection of the Instituto Nacional de Pesquisas da Amazônia - INPA, Manaus, Brazil. Of the total species examined,
Thaís Melo de Almeida   +2 more
doaj   +1 more source

Dicrananthera hedyotidea C. Presl. (Melastomataceae) in Maranhão state, Brazil: first record and ecological niche model of the species

open access: yesNordic Journal of Botany, EarlyView.
Dicrananthera C. Presl. is a monospecific genus of the tribe Marcetieae, comprising perennial herbs typically occurring in areas adjacent to wetlands. The species exhibits a disjunct distribution, with confirmed records in both the Amazon and Atlantic Forest domains.
Elias Julio Oliveira Correa   +4 more
wiley   +1 more source

Biosurfactant production by Pseudomonas aeruginosa isolated from mining waste: From genomic analysis to development of a polymeric composite for removal of hexavalent chromium

open access: yesPolymer International, EarlyView.
Biosurfactant was produced by Pseudomonas aeruginosa using andiroba waste from Amazonia. A biosurfactant–alginate composite (Alg/BioS) was successfully synthesized via ionotropic gelation, and achieved up to 70% Cr6+ removal from water. Abstract Environmental contamination by heavy metals represents a significant challenge due to their persistence in ...
Paulo Diniz Austriaco   +11 more
wiley   +1 more source

Cultivo da Soja no Cerrado de Roraima. [PDF]

open access: yes, 2020
A publicação Sistemas de Produção ? Cultivo de Soja no Cerrado de Roraima é resultante do esforço conjunto realizado pela Embrapa Roraima, Embrapa Cerrados e Embrapa Soja com intuito de contribuir para o aperfeiçoamento e o desenvolvimento do agronegócio

core  

Hydropsalis roraimae

open access: yes, 2014
Published as part of Sigurðsson, Snorri & Cracraft, Joel, 2014, Deciphering the diversity and history of New World nightjars (Aves: Caprimulgidae) using molecular phylogenetics, pp. 506-545 in Zoological Journal of the Linnean Society 170 (3) on page 542, DOI: 10.1111/zoj.12109, http://zenodo.org/record ...
Sigurðsson, Snorri, Cracraft, Joel
openaire   +2 more sources

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

open access: yesPolymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva   +10 more
wiley   +1 more source

Desmatamento no estado de Roraima. [PDF]

open access: yes, 2019
Monitoramento da floresta amazônica brasileira por satélite projeto PRODES.
XAUD, M. R., XAUD, H. A. M.
core  

Narcogarimpo: las afinidades electivas entre los frentes de minería ilegal y la expansión del narcotráfico en la Amazonía brasileira

open access: yesUrvio
Este estudio lleva a cabo una interpretación sociohistórica de los frentes de minería ilegal y sus afinidades con los dos grupos criminales, Comando Vermelho (CV) y Primeiro Comando da Capital (PCC), que se expandieron violentamente desde Rio de Janeiro ...
Rodrigo Pereira Chagas
doaj   +1 more source

Illegal Gold Mining in the Brazilian Amazon: Environmental Degradation in Yanomami Indigenous Lands, and Regulatory Failures

open access: yesSustainable Development, EarlyView.
ABSTRACT Illegal gold mining has emerged as a major sustainability threat in the Amazon, eroding Indigenous rights, forest integrity, and climate mitigation efforts. This study examines how international market incentives relate to the expansion of illegal mining and associated deforestation within the Yanomami Indigenous Territory (YIT) from 2008 to ...
Shirléia Lago Santos   +2 more
wiley   +1 more source

The Economic and Ecological Impact of Soy in Brazil: A Synthetic Control Method Approach

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT In recent decades, soy expansion in Brazil has generated significant environmental, social and economic impacts. However, there is no consensus about benefits and drawbacks, calling for a more careful account of the economic and ecological diversity of the territories where this phenomenon has been unfolding.
Stefano Ghinoi   +3 more
wiley   +1 more source

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