Results 41 to 50 of about 5,679 (181)

ALTERAÇí-ES HEMATOLÓGICAS EM CURIMBATÁ, Prochilodus scrofa STEINDACHNER, 1881, EXPOSTO AO DIPTEREX 500 (TRICHLORFON)

open access: yesBoletim do Instituto de Pesca, 2019
Espécimes juvenis de curimbatá, Prochilodus scrofa, foram divididos em dois lotes, colocados em aquários de 81 litros, sendo um controle e outro tratado com Dipterex 500 (Trichlorfon), na concentração de 0,2 µL/L, onde os peixes permaneceram até o ...
Maria José Tavares RANZANI-PAIVA   +4 more
doaj  

Scientists’ warning on the global destruction of rock outcrop ecosystems

open access: yesConservation Biology, Volume 40, Issue 5, October 2026.
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula   +19 more
wiley   +1 more source

Assessing responses of reef island seabirds to environmental and anthropogenic drivers

open access: yesConservation Biology, Volume 40, Issue 5, October 2026.
Abstract Tropical insular ecosystems face escalating, cumulative impacts of land‐ and sea‐based ecological threats that jeopardize the long‐term sustainability of their native communities. This joint vulnerability is epitomized by reef island seabirds, which are exposed to reef decline and coastal erosion driven by climate change, reduction in prey ...
Tristan Berr   +7 more
wiley   +1 more source

EFEITO AGUDO DO ORGANOFOSFORADO DIPTEREX 500 (TRICHLORFON) EM BAí­"¡O DE CURIMBATÁ Prochilodus scrofa (STEINDACHNER, 1881)

open access: yesBoletim do Instituto de Pesca, 2019
Utilizando espécimes juvenis de Prochilodus scrofa, foram registradas alterações agudas no baço de indiví­­duos expostos ao organofosforado Dipterex 500 (Trichlorfon). A concentração utilizada foi de 0,2 µL/Iitro de água de diluição.
Edson de Lara RODIRGUES   +4 more
doaj  

Introduced dung beetles suppress methane emissions from cattle dung and alter the temporal dynamics of greenhouse gas flux Los escarabajos peloteros introducidos suprimen las emisiones de metano del estiércol de ganado y alteran la dinámica temporal del flujo de gases de efecto invernadero Besouros coprófagos introduzidos suprimem as emissões de metano do esterco bovino e alteram a dinâmica temporal do fluxo de gases de efeito estufa

open access: yesEcological Entomology, Volume 51, Issue 5, Page 1025-1035, October 2026.
Dung beetles suppressed cumulative methane flux from cattle dung by 85% and reduced total greenhouse gas emissions by 18%. Beetle activity accelerated initial CO2 release but did not alter total cumulative flux. N2O and NH3 fluxes were transient and not consistently driven by beetle presence.
Jean Holley   +2 more
wiley   +1 more source

Impacto Ambiental del Sistema de Alcantarillado en la Ciudadela «3 de mayo» de la Ciudad de Jipijapa - Ecuador

open access: yesRevista del Instituto de Investigación de la Facultad de Minas, Metalurgia y Ciencias Geográficas, 2018
Esta investigación se realizó en la ciudadela “3 de Mayo” con una población de 7.906 habitantes, su clima es tropical seco con una temperatura de 24 °C, sus hábitos y costumbres están arraigados en aspectos culturales, históricos y folclóricos, pertenece
Miguel Ángel Osejos Merino   +2 more
doaj   +1 more source

Green Hydrogen in Brazilian Media: Dominant Narratives and Missing Dimensions of the Energy Trilemma

open access: yesPolitics &Policy, Volume 54, Issue 5, October 2026.
ABSTRACT Media discourses help shape the visibility and legitimacy of energy transition pathways in the public sphere. This study examines how Brazilian mainstream newspapers framed green hydrogen and assesses the alignment of these narratives with the energy trilemma: energy security, environmental sustainability, and social accessibility. We analyzed
Flávia Mendes de Almeida Collaço   +3 more
wiley   +1 more source

Photoelectrochemical Water Splitting With TiO2 Thin Films: Effects of Thickness, Porosity, and Illumination Configuration

open access: yesChemElectroChem, Volume 13, Issue 18, 19 September 2026.
An increase in surface area is not always an advantage for photoanodes; mesoporous TiO2 photoelectrodes present lower photoelectrocatalytic performance in oxygen evolution reaction due to a higher density of surface states that promote recombination, especially under frontal illumination.
Michael Zuarez‐Chamba   +6 more
wiley   +1 more source

Avaliação qualitativa de impactos ambientais considerando as etapas de limpeza e preparo do terreno em plantios florestais no Nordeste paraense

open access: yesRevista Árvore, 2013
Este trabalho apresenta os resultados da avaliação qualitativa de impactos ambientais na etapa de implantação florestal, considerando-se as atividades de limpeza e preparo do terreno, por meio da aplicação dos métodos de matriz de identificação e ...
Márcia Nágem Krag   +5 more
doaj   +1 more source

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