Results 21 to 30 of about 196,145 (165)

Conformación y declive de los grupos nacionales de comunicación en Uruguay: el impacto de la competencia con las plataformas multinacionales

open access: yesCuadernos.info, 2023
Este artículo busca describir la configuración y la evolución económica de los grupos uruguayos de televisión comercial desde su nacimiento en 1956 hasta el año 2022.
Gustavo Buquet
doaj   +1 more source

Conservation gap analysis for wild grapevines (Vitis L.) of the Americas

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Wild grapevines (Vitis L.) native to the Americas are ecologically and culturally important plants that are also critical to the global cultivated grape industry as sources of traits for crop innovation, but many of these species are poorly documented and insufficiently conserved.
Daniel Carver   +15 more
wiley   +1 more source

Aboveground herbivory elevates belowground rhizosphere volatile organic compound concentrations in ambient and polluted air, independent of volatile sampling methodology

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The effect of air pollution on plants is still underexplored, especially belowground. We used a field facility that released diesel exhaust and ozone at concentrations equivalent to those near a busy road in Reading, UK, to measure belowground gas exchange of Scots pine together with feeding by large pine weevils, a major pest of conifers.
Tihomir Simin   +7 more
wiley   +1 more source

Enhanced fish detection sensitivity in aquatic systems using environmental RNA

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Environmental RNA (eRNA) can potentially augment the biological monitoring ability of the established environmental DNA (eDNA) application in conservation. Despite faster degradation, environmental RNA could offer unique advantages: it may help reduce the legacy signal compared to eDNA, provide insights into physiological status through gene ...
Ana Ramón‐Laca   +9 more
wiley   +1 more source

«Juntos pero no revueltos»: Procesos de concentración escolar del «alumnado extranjero» en determinados centros educativos

open access: yesRevista de Dialectología y Tradiciones Populares, 2013
La segregación y/o concentración de poblaciones de nacionalidad extranjera en determinadas escuelas es un fenómeno abordado por la producción científica internacional, un tema recurrente para los medios de comunicación y un hecho plasmado en los ...
F. Javier García Castaño   +1 more
doaj   +1 more source

La desindustrialización argentina en el largo ciclo neoliberal (1976-2001): una aproximación a la trayectoria de las clases y fracciones de clase

open access: yesAmérica Latina en la Historia Económica, 2022
En 1974 la economía argentina acumulaba una década de crecimiento económico ininterrumpido; desde entonces y hasta comienzos del siglo xxi la misma mostró un desempeño insatisfactorio, especialmente si es comparada con otros países de la región como ...
Andres Wainer, Martín Schorr
doaj   +1 more source

Observer coverage and interaction rates determine the choice between design‐based and machine learning bycatch estimators for rare species

open access: yesConservation Biology, EarlyView.
Abstract Robust estimates of the magnitude of protected species bycatch are essential for effective fisheries management and marine conservation. Existing bycatch estimation methods typically struggle to accurately and precisely estimate the bycatch of rare species as a result of the statistical assumptions necessary to overcome infrequent encounters ...
Christopher Long   +3 more
wiley   +1 more source

Framing the Square: Cinematic Procedures and Visual Regimes in Diamela Eltit's Lumpérica

open access: yesBulletin of Latin American Research, Volume 45, Issue 4, October 2026.
ABSTRACT This article examines how Diamela Eltit's Lumpérica (1983) constructs a regime of visibility through the spatial organisation of the public square that structures the novel. While criticism has often emphasised the text's linguistic fragmentation and performative dimensions, less attention has been paid to the visual procedures through which ...
Denisse Lazo
wiley   +1 more source

La concentración urbana [PDF]

open access: yes, 1970
La concentración ...
Terán, Fernando de
core  

Concentración en el mercado eléctrico español [PDF]

open access: yes, 2023
El mercado eléctrico en España se ha caracterizado históricamente por presentar unos altos niveles de concentración. Las ineficiencias generadas por mercados económicos en los que un grupo reducido de empresas tiene la capacidad de ejercer poder de ...
Recio Arcauz, Miguel
core   +1 more source

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