Results 41 to 50 of about 296,470 (208)

USO DE FILTROS DE CONTEÚDO NA INTERNET E SUA INTERFERÊNCIA NA DEMOCRACIA

open access: yesRevista Eletrônica Direito e Política, 2018
A internet é considerada um espaço democrático, podendo ser utilizada para promover a participação popular e o exercício da cidadania. Contudo, também pode ser usada para restringir liberdades indivíduas, como a de expressão quando da utilização de ...
Thais Dagostini Santin   +1 more
doaj   +1 more source

Habitat Conditions and Neighborhood Interactions Drive the Phylogenetic Structure of Seedling Assemblages in a Tropical Forest Mosaic

open access: yesBiotropica, Volume 57, Issue 6, November 2025.
In poor, well‐drained sandy soils, we observed the coexistence of more closely related species, suggesting that shared evolutionary history influences which seedlings survive under these restrictive conditions. Contrary to expectations, flooded areas harbored more distantly related species, likely because pathogens and other natural enemies limit the ...
Matheus Guthierris Bitencourt Rosa   +4 more
wiley   +1 more source

Método eficiente para la detección y corrección de errores producidos por los efectos de la radiación en filtros digitales [PDF]

open access: yes, 2007
La Universidad Carlos III de Madrid y la Universidad Antonio de Nebrija han desarrollado una técnica para proteger implementaciones de filtros digitales, utilizadas en sistemas de comunicaciones y procesado de señal, frente a los errores causados por la ...
Azcorra Saloña, Arturo
core   +1 more source

Livelihood resilience: The role of social‐ecological filters in a Globally Important Agricultural Heritage System of southern Chile

open access: yesPeople and Nature, Volume 7, Issue 8, Page 1889-1904, August 2025.
Abstract The global agrifood system faces significant threats due to rapid and interconnected social‐ecological changes, including climate change, land‐use shifts, demographic changes and emerging diseases. Small‐scale farmers are among the most vulnerable groups to these changes due to their direct dependence on their environment.
Julián Caviedes   +7 more
wiley   +1 more source

Consideraciones sobre la función de inversión en España [PDF]

open access: yes, 1993
En este artículo se realiza un estudio detenido del modelo para la inversión estimado por Andrés et al. (1990). Dicha estimación contiene filtros racionales con raíces complejas que producen respuestas oscilantes ante variaciones de tipo impulso sobre ...
Espasa, Antoni, Senra, Eva
core   +1 more source

Unveiling Short‐Scale Responses: How Pico‐ and Nanoeukaryotic Plankton Navigate Environmental Variability in a Coastal Upwelling System

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 2, April 2025.
We investigated the taxonomic composition and dynamics of pico‐ and nanoeukaryotes in an upwelling bay, providing insights into potential future trends. Advection and trophic interactions emerged as key factors shaping these communities. During downwelling, taxonomically unclassified picoeukaryotes and minor nanoeukaryotic taxa was dragged into the ria.
María Froján   +7 more
wiley   +1 more source

Reducción de pérdidas de potencia activa y mejoramiento de la calidad de la onda de tensión en sistemas de distribución

open access: yesRevista UIS Ingenierías, 2002
Este artículo presenta un método quepennite disminuir las pérdidas de potencia activa del sistemay mejorar la calidad del servicio de energía eléctrica mediante la ubicación y el dimensionamientoóptimo defiltros pasivos (predetenninados) en sistemas de ...
Johan Farith Petit   +1 more
doaj  

Filtros biologicamente ativos por enzimas imobilizadas. [PDF]

open access: yes, 2011
bitstream/CNPDIA/10324/1/PA16_97 ...
ASSIS, O. B. G. de, COLNAGO, L. A.
core  

Functional intraspecific variation in the base water potential for seed germination along soil microclimatic gradients

open access: yesFunctional Ecology, Volume 39, Issue 3, Page 897-911, March 2025.
Abstract The ability of plants to successfully regenerate depends on complex physiological and ecological processes, and one of the first vital stages is seed germination, which depends on temperature, light and water availability. Within species variation in seed germination allows differential responses when facing stimuli and is key for adaptation ...
Clara Espinosa del Alba   +3 more
wiley   +1 more source

On the penetration of particles through filters and masks. [PDF]

open access: yes, 2012
El principal objetivo de este trabajo es la evaluación de la eficiencia de filtros y máscaras destinados a la protección de los trabajadores contra partículas sólidas respirables.
Garcia Torrent, Javier   +4 more
core  

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