Results 51 to 60 of about 973,334 (207)

Eficiencia de absorción de nutrientes de Gracilaria chilensis y Ulva lactuca en un sistema multitrófico integrado con el abalón rojo Haliotis rufescens [PDF]

open access: yes, 2014
Indexación: Web of Science; Scielo.ABSTRACT. The current study examined the nutrient uptake efficiency of Ulva lactuca and Gracilaria chilensis cultivated in tanks associated with the wastewater of a land-based abalone culture.
Bulboa, Cristian, Macchiavello, Juan
core  

Mapping priority areas to mitigate the risk of electrocution of range‐restricted bird species

open access: yesJournal of Applied Ecology, Volume 62, Issue 10, Page 2787-2799, October 2025.
Our study proposes a framework to identify areas with higher electrocution risk, which can be used even in data‐scarce regions or adapted to a multi‐species assessment context. This approach can support proactive strategies for energy companies with an initial assessment identifying areas to avoid installing new power lines, evaluating sites for ...
Larissa D. Biasotto   +8 more
wiley   +1 more source

Satisfacción de los pacientes respecto a calidad de la atención odontológica en una institución pública universitaria de la ciudad de Cartagena

open access: yesDuazary, 2014
ResumenAntecedentes: La satisfacción del usuario es un tema de debate para las instituciones de servicios de salud; en Odontología es base para la recomendación de servicio profesional y posterior reingreso del paciente.
Adriana Betin Portacio   +3 more
doaj  

Eficiencia de los regadíos españoles [PDF]

open access: yes, 2003
Este estudio analiza la eficiencia del USO del agua en los regadíos españoles. Se contraponen, pues, aquellos que están apoyados directamente por las ayudas PAC, por la utilización de energías subvencionadas y protecciones arancelarias frente a terceros ...
Morales Gil, Alfredo
core  

The crucial role of meshing in computational fluid dynamics simulations for organic geometries in paleobiology: Describing fluid dynamics performance through best practices

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 10, Page 2170-2194, October 2025.
Abstract Computational fluid dynamics (CFD) has become an essential tool for studying fluid interactions in biological systems. While widely used in engineering, its application in the natural sciences, particularly in paleobiology, remains limited due to the challenges of meshing complex organic geometries.
Matheo López‐Pachón   +1 more
wiley   +1 more source

- EFICIENCY AND PRODUCTIVITY SPECIALIZATION: THE SPANISH REGIONS [PDF]

open access: yes
This paper shows the importance of the composition of production -productive specialization- and sector inefficiencies when evaluating efficiency in aggregate production.
Joaquín Maudos Villarroya   +2 more
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Assessing spatial variability and efficacy of surrogate species at an ecosystem scale

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Preserving biodiversity is a central goal of conservation, but, in practice, monitoring biodiversity often involves assessing population trends for one or a handful of species that are presumed proxies for biodiversity. Despite the popularity of surrogate species strategies, the links between biodiversity and surrogate species are rarely ...
Kristin M. Brunk   +4 more
wiley   +1 more source

Análisis envolvente de datos: una aplicación al sector de los servicios avanzados a las empresas del Principado de Asturias.

open access: yesRect@, 2003
Una de las causas del aumento del terciario en las economías avanzadas es el creciente consumo externo de ciertos servicios empresariales. Detrás de este comportamiento está la búsqueda de las ventajas que proporciona la división del trabajo ...
Rubiera Morollón, Fernando   +2 more
doaj  

Caracterización térmica y mecánica de bloque de concreto

open access: yesInnova Research Journal, 2018
El diseño para construcciones de viviendas en Ecuador, en su mayoría se priorizan las resistencias mecánicas, dejando de lado el análisis de las prestaciones térmicas.
Mario Bustamante Crespo   +2 more
doaj   +1 more source

Performance and efficiency in Colombia's power utilities: an assessment of the 1994 reform [PDF]

open access: yes
This paper describes the core features of the power sector 1994 regulatory reform and evaluates utility performance and efficiency before and after the reform.
Carlos Pombo, Rodrigo Taborda
core  

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