Results 41 to 50 of about 255,140 (213)

Sistema sanitario y cambio soscial : un modelo de path analysis para el caso de España [PDF]

open access: yes, 1976
Los sistemas sanitarios deben analizarse como procesos de mantenimiento y mejora del nivel (y distribución) sanitari0 en una población dada. Aquí definimos los sistemas sanitarios como "sistemas-abiertos-relacionados", siguiendo la metodología del ...
De Miguel, Jesús M., Oltra, Benjamín
core   +4 more sources

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

DISPARIDADES REGIONALES EN ESPAÑADE LA DENSIDAD DE POBLACIÓN ALO LARGO DELSIGLO XX

open access: yesPapeles de Geografí­a, 2001
Se analiza el proceso desigual de cambio de las regiones españolas (CC.AA) durante el último siglo. Se advierte la sucesión de periodos muy diferentes con resultados contrastados.
José María Serrano Martínez
doaj  

Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework

open access: yesConservation Biology, EarlyView.
Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift   +8 more
wiley   +1 more source

Líneas borrosas:

open access: yesCuadernos de Política Exterior Argentina, 2020
Entre 2014 y 2016, la Presidencia de la República Libanesa estuvo vacante. El Reino de Arabia Saudita y la República Islámica de Irán jugaron un rol importante en el país con relación a esa crisis, en un contexto en el que ambas potencias regionales ...
Said Chaya
doaj   +1 more source

Comparative review of entanglement risk assessments for cetacean conservation and management

open access: yesConservation Biology, EarlyView.
Abstract Cetacean entanglement in fishing gear remains a major global threat that exposes persistent gaps in how fisheries management frameworks manage risk to nontarget species. Ecological risk assessment (ERA) offers a structured way to link exposure and consequences to an explicit statement of risk, but entanglement risk assessments vary widely in ...
Laura Joan Feyrer   +2 more
wiley   +1 more source

La distribución regional de la temporalidad en españa. Análisis de sus determinantes [PDF]

open access: yes, 2015
Este trabajo aporta evidencia empírica acerca de los factores determinantes de las diferencias en la probabilidad de acceder a un contrato indefinido entre las distintas regiones españolas.
Motellón Corral, Elisabet
core  

Tracking the impact of bottom trawling on benthic habitat status

open access: yesConservation Biology, EarlyView.
Abstract Bottom trawling is the most widespread physical disturbance to marine benthic habitats, yet broadscale assessments of its impact remain limited. We developed a quantitative framework to evaluate trawling effects on benthic habitats at broad spatial scales based on the sentinels of seabed (SoS) indicator.
Maider Plaza‐Morlote   +10 more
wiley   +1 more source

Tree‐ring structure determines the temporal coordination between xylem growth and the gain in hydraulic conductivity in the outermost ring

open access: yesNew Phytologist, EarlyView.
Summary The study of seasonal xylem hydraulics has predominantly focused on embolism‐induced losses, whereas growth‐driven increases in hydraulic capacity have received little attention. We assessed the intra‐annual dynamics of xylem formation and gain of conductivity in the current‐year ring of three species with contrasting tree‐ring structure ...
Laura Fernández‐de‐Uña   +4 more
wiley   +1 more source

Diferencias regionales y despliegue de Gobierno Electrónico en las provincias argentinas

open access: yesRevista Venezolana de Gerencia, 2009
Este trabajo presenta algunos resultados obtenidos en una investigacion desarrollada en el ambito del Consejo Federal de Inversiones (CFI) de la Republica Argentina. Especificamente, y aunque en dicha investigacion se analizaron diferentes aspectos del despliegue de las Tecnologias de Informacion y Comunicacion en las provincias, en este articulo ...
Josefina Vaca, Horacio Cao
openaire   +3 more sources

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