Results 31 to 40 of about 222 (138)

Organic micropollutants on river sediments from Rio de Janeiro State, Southeast Brazil Micro-poluentes orgânicos em sedimentos fluviais no Estado do Rio de Janeiro, Sudeste do Brasil

open access: yesCadernos de Saúde Pública, 2002
The paper is a contribution for the knowledge upon concentrations and fate of different kinds of organic micropollutants in Tropical River system from a very industrialized region in Brazil.
João Paulo Machado Torres   +4 more
doaj   +1 more source

New morphological data on Cucullanus pinnai pinnai (Nematoda) parasitizing Pimelodus maculatus (Pimelodidae) in southeastern Brazil

open access: yesRevista Brasileira de Parasitologia Veterinária
This paper describes the morphology of Cucullanus pinnai pinnai parasitizing Pimelodus maculatus in the Guandu River, Brazil, based on differential interference contrast (DIC) microscopy and scanning electron microscopy (SEM), providing new morphological
Vivian Suane de Freitas Vieira   +2 more
doaj   +1 more source

Sustainable provision of raw water based on the management of ecosystem services in small watersheds

open access: yesRevista Ambiente & Água, 2020
The differentiated effects of the provision of environmental services in a watershed are due to the capacity of regularization of outflows in its mouth.
Mateus Marques Bueno   +3 more
doaj   +1 more source

A comparative study of the population genetics of wild and cultivated populations of Paris polyphylla var. yunnanensis based on amplified fragment length polymorphism markers

open access: yesEcology and Evolution, Volume 9, Issue 18, Page 10707-10722, September 2019., 2019
Paris polyphylla var. yunnanensis is an important medicinal and endangered plant. This study explored genetic diversity and structure of its wild and cultivated populations. Abstract Paris polyphylla var. yunnanensis is one of the original plants used to make the traditional medicine Paridis Rhizoma.
Yu Huang   +4 more
wiley   +1 more source

Técnicas de geoprocessamento e sensoriamento remoto aplicadas na identificação de conflitos do uso da terra em Seropédica-RJ

open access: yesFloresta e Ambiente
Este trabalho avaliou o uso e a cobertura da terra, e comparou os dados obtidos com aqueles das Áreas de Preservação Permanente (APPs), para identificar conflitos do uso da terra no município de Seropédica-RJ.
Kaio Allan Cruz Gasparini   +5 more
doaj   +1 more source

Application of the biotic index IBE-IOC for water quality assessment in wadeable streams in south-east Brazil Uso do índice biótico IBE-IOC para a avaliação da qualidade da água de riachos no sudeste do Brasil

open access: yesActa Limnologica Brasiliensia, 2011
AIM: This work presents the results of the first water quality assessment using the biotic index Índice Biótico Estendido - Instituto Oswaldo Cruz (IBE-IOC) for 1st to 4th order streams in the Serra dos Órgãos region, Rio de Janeiro State, Brazil.
Riccardo Mugnai   +5 more
doaj   +1 more source

The Genus Hyalyris Boisduval, 1870 (Lepidoptera: Nymphalidae) in the Brazilian Atlantic Forest: Systematics, Taxonomy and Conservation

open access: yesAustral Entomology, Volume 65, Issue 2, May 2026.
ABSTRACT The neotropical butterfly tribe Ithomiini (Danainae) comprises about 400 species distributed from Mexico to Northern Argentina, 58 of which occur in the Brazilian Atlantic Forest. Among these are two species assigned to the genus Hyalyris Boisduval, 1870: Hyalyris fiammetta (Hewitson, 1852) and Hyalyris leptalina (C. Felder & R. Felder, 1865).
André Victor Lucci Freitas   +7 more
wiley   +1 more source

Avian influenza overview February– August 2019

open access: yesEFSA Journal, Volume 17, Issue 9, September 2019., 2019
Between 16 February and 15 August 2019, five HPAI A(H5N8) outbreaks at poultry establishments in Bulgaria, two low pathogenic avian influenza (LPAI) A(H5N1) outbreaks in poultry in Denmark and one in captive birds in Germany, one LPAI A(H7N3) outbreak in poultry in Italy and one LPAI A(H7N7) outbreak in poultry in Denmark were reported in Europe ...
European Food Safety Authority   +10 more
wiley   +1 more source

Integrating hydrodynamic model and Monte Carlo simulation for predicting extreme water levels in a river system

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2019
Estimates of extreme water level return periods in river systems are crucial for hydraulic engineering design and planning. Recorded historical water level data of Taiwan’s rivers are not long enough for traditional frequency analyses when predicting ...
Wen-Cheng Liu Hong-Ming Liu
doaj   +1 more source

Detection of Linkage Between Solar and Lunar Cycles and Runoff of the World's Large Rivers

open access: yesEarth and Space Science, Volume 6, Issue 6, Page 914-930, June 2019., 2019
Abstract It is an ongoing concern that global hydrological cycle can be likely intensified under context of climate change and anthropogenic actions. Here, our results show that the solar and lunar periodic motions (SLPMs) have substantial impact on the runoff of the world's large rivers. We estimate that SLPMs can produce a change of the world's large
Zhijun Dai   +7 more
wiley   +1 more source

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