Results 41 to 50 of about 44,951 (195)

Impacto de las loncheras escolares en el rendimiento académico

Ciencia Amazónica (Iquitos), 2013
El objetivo del estudio fue: Valorar el consumo de las loncheras escolares relacionado al rendimiento académico en niños de Instituciones Educativas Iniciales del distrito de Punchana, durante el año 2013; fue de tipo descriptivo correlacional no ...
Yuri Margott Saavedra-Lomas, Carlos Antonio Li-Loo Kung, Susy Karina Dávila Panduro, Miriam Ruth Alva Angulo   +3 more
doaj   +3 more sources

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

Polymer 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, Emilly Cruz da Silva, Glenda Sores Gomes, Joane Almeida Alves, Amanda Vidal, Leandro Argolo, Rafaela Ribeiro, Luciana Souza, José Augusto Pires Bitencourt, Leonardo Brasil Felipe, Leonie Asfora Sarubbo, Sidnei Cerqueira dos Santos   +11 more
wiley   +1 more source

Characteristics of upper‐level updrafts and downdrafts in the anvils of tropical deep convective clouds

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study investigates the thermodynamic and microphysical characteristics of updrafts and downdrafts of tropical deep convective anvil clouds using in situ measurements. We found that parts of the downdrafts are in ice supersaturation in these clouds.
Sreehari Kizhuveettil, Jordi Vila‐Guerau de Arellano, Martina Krämer, Armin Afchine, Luiz A. T. Machado, Martin Zöger, Wiebke Frey   +6 more
wiley   +1 more source

Circulações wachiperi entre as terras altas e baixas e os dilemas de território e propriedade na Amazônia Peruana [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas, Programa de Pós-graduação em Antropologia Social, Florianópolis, 2013Esta dissertação busca descrever as circulações territoriais dos Wachiperi, povo
Barreto Paucar, Rocio Esther
core  

frontiermetrics: An R Package for Characterizing Deforestation Frontiers

Remote Sensing in Ecology and Conservation, EarlyView.
Deforestation frontiers are major drivers of biodiversity loss, carbon emissions, and ecosystem degradation, yet our understanding of how deforestation progresses in these frontiers is limited. We present frontiermetrics, an R package to quantify a range of metrics describing the speed, severity, and spatio‐temporal patterns of forest loss. The package
Pablo Yair Huais, Ana Buchadas, Eduardo Lacerda, Javier Nori, Matthias Baumann, Tobias Kuemmerle   +5 more
wiley   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

Environmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel, Mariane Gama Nabiça, Luciana Pinheiro Santos, Thiago de Melo e Silva, Elivaldo Nunes Modesto Junior, Heronides Adonias Dantas Filho, Charles Miller de Souza Borges, Kelly das Graças Fernandes Dantas, Simone de Fátima Pinheiro Pereira, Ivan Carlos da Costa Barbosa, Beni Jequicene Mussengue Chaúque, Rosinelson da Silva Pena, Nayara Macêdo Peixoto Araújo, Alessandra Santos Lopes   +13 more
wiley   +1 more source

Determinación de la tasa respiratoria de Eugenia stipitata Mc Vaugh (arazá) y Myrcyaria dubia HBK (camu-camu)

Ciencia Amazónica (Iquitos), 2013
En el presente trabajo se determinó diariamente la tasa respiratoria de Eugenia stipitata Mc Vaugh (arazá)  y Myrcyaria dubia  HBK (camu-camu) a temperaturas de 10, 20 y 28°C, utilizando un respirómetro construido en el laboratorio.
Littman Gonzáles, Beder Aylas, Kike Paima, Alberto Bazán   +3 more
doaj  

Cocinas solares en la Amazonía boliviana

, 2018
Proyecto Cocinas solares en la Amazonía boliviana Resumen: El proyecto de Cocinas Solares para la Amazonía llegó a 260 familias en siete municipios del norte de La Paz y Beni.
Proyecto Cocinas solares en la Amazonía boliviana
core  

Oxidative Stress Biomarkers in the Shrimp Macrobrachium amazonicum (Heller, 1862): Assessment in an Environmental Preservation Area in the Brazilian Amazon

Environmental Toxicology, EarlyView.
ABSTRACT Anthropogenic activities generate a significant amount of pollutants that are released into the environment, causing physiological and ecological disturbances. Among the xenobiotics present in aquatic ecosystems, numerous chemical and organic compounds have oxidative potential or are metabolized through oxidative processes, which may amplify ...
Natália Eduarda da Silva, Arllon José dos Santos Dias, Layane Vitoria dos Santos e Santos, Natalie de Matos Araujo, Darlan Coutinho dos Santos, Jefferson Romáryo Duarte da Luz, Gabriel Araujo‐Silva   +6 more
wiley   +1 more source

Bryophyte diversity patterns in flooded and tierra firme forests in the Araracuara Region, Colombian Amazonia [PDF]

, 2004
We investigated patterns of bryophyte species richness and composition in two forest types of Colombian Amazonia, non-flooded tierra firme forest and floodplain forest of the Caquetá River.
Idarraga, Alvaro, Benavides, Juan C., Alvarez, Esteban   +2 more
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