Results 71 to 80 of about 877,082 (251)

El individuo y sus redes sociales [PDF]

open access: yes, 2008
Portes, Guarnizo y Landolt (2003) han sugerido repensar la unidad de análisis de los estudios transnacionales en torno al estudio del “individuo y sus redes sociales”. El presente artículo propone incorporar conceptos y metodologías de la teoría de redes
Ávila Molero, Javier
core  

Balancing tracks and trees: Assessing railroad impact on Brazilian biodiversity

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The Brazilian West–East Integration Railway (FIOL) aims to boost the national economy by improving commodity transport; however, it crosses three of Brazil's most biodiverse and fragile regions: the Caatinga, Cerrado and Atlantic Forest. Using digitised plant records and land‐use analyses, our study reveals significant vegetation loss within the ...
Ana Luiza Silva Rocha   +3 more
wiley   +1 more source

Impact of parameterization in multiple acoustic index comparisons: practical cases in terrestrial and underwater soundscapes

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Parameter choices in acoustic analyses (sampling frequency, FFT size and window overlap) strongly influence multivariate soundscape separation. Using terrestrial and coral reef recordings, we show that these settings can exaggerate or mask ecological differences, emphasizing the need for parameter sensitivity testing and transparent reporting in ...
Juan C. Azofeifa‐Solano   +8 more
wiley   +1 more source

Energy Dependence, Energy Import Diversification, and Institutional Quality: Heterogeneous Impacts on Sustainable Economic Development in the European Union

open access: yesSustainable Development, EarlyView.
ABSTRACT Energy dependence poses significant risks for economic development, particularly in regions that rely heavily on imported fossil fuels. This paper examines how energy dependence and energy import diversification influence economic development across 27 European Union countries between 2000 and 2022. Using IV‐GMM and panel quantile regressions,
Mehmet Pinar
wiley   +1 more source

Improving manual tagging of camera trap videos for wildlife studies: a visual assistance tool applied to the endangered huillin Lontra provocax

open access: yesWildlife Biology, EarlyView.
In the last decades, the use of camera traps for wildlife studies has increased significantly due to advancements in technology leading to cost reduction and improved reliability. They facilitate the study of wild animals in their natural environment in a minimally invasive manner, eliminating the need for researchers to remain in the field for long ...
Luciano Marpegan   +2 more
wiley   +1 more source

Análisis de redes sociales y rendimiento académico: lecciones a partir del caso de los Estados Unidos

open access: yesDebates en Sociología, 2010
El presente artículo investiga la importancia conjunta de la estructura y el contenido de las redes sociales de amistad de estudiantes de secundaria para su rendimiento académico.
Martín Santos
doaj  

Relación entre síntomas de TEPT, ansiedad y de depresión desde el modelo de redes en una muestra de adolescentes [PDF]

open access: yes, 2018
101 p.La literatura plantea que la población con síntomas del trastorno de estrés postraumático (TEPT) presentan una alta posibilidad de presentar síntomas de depresión y ansiedad.
Fresno Rodríguez, Andrés (Prof. Guía)   +2 more
core   +1 more source

Road pollution estimation using static cameras and neural networks [PDF]

open access: yes, 2018
Este artículo presenta una metodología para estimar la contaminación en carreteras mediante el análisis de secuencias de video de tráfico. El objetivo es aprovechar la gran red de cámaras IP existente en el sistema de carreteras de cualquier estado o ...
Deka, lipika   +4 more
core   +1 more source

From steps to home ranges: How habitat disturbance influences the movement drivers of an arboreal primate

open access: yesJournal of Animal Ecology, EarlyView.
Challenging the narrative about howler monkeys' high resilience to anthropogenic changes, our multiscale analysis reveals the costs of habitat disturbance to their movement ecology. We identify thermal limitations, reduced travel efficiency, and significant spatial saturation.
Anaid Cárdenas‐Navarrete   +4 more
wiley   +1 more source

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