Results 31 to 40 of about 91,151 (216)

El futuro de la comunicación [PDF]

open access: yes, 1984
Análisis de cómo se ha revolucionado la estructura de las comunicaciones a través del uso de satélites y de la introducción de las Comunicaciones ...
Martín Pereda, José Antonio
core   +1 more source

A multiscale seasonal examination of the risk of harm to seabirds from vessels based on co‐occurrence in Alaskan waters

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Alaska's seascape supports globally significant seabird populations, including vulnerable and threatened species, and hosts economically important commercial fisheries and marine transportation corridors. Seasonal patterns of seabird movements and vessel traffic create a complex landscape of risk, defined as high levels of co‐occurrence ...
Kelly Kapsar   +2 more
wiley   +1 more source

Aplicaciones civiles del GPS [PDF]

open access: yes, 1995
Peer ...
Closa Soteras, Josep   +2 more
core   +3 more sources

Las dinámicas socio-cognoscitivas en un sector conocimiento-intensivo. Nahuelsat S.A. (1993-2007)

open access: yesCiencia, Docencia y Tecnología, 2022
En este artículo se analizaron las dinámicas socio-cognoscitivas que favorecieron la emergencia y el desarrollo de la operación de satélites geoestacionarios a fines del siglo xx en Argentina.
Yamila Noely Cáceres
doaj   +1 more source

Risks of Time and Chronology as an Underpinning Infrastructure for Critical Systems: Emerging Chronorisks and Chronosecurity Needs

open access: yesJournal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT Time and chronology form the invisible architecture upon which modern civilization depends, governing synchronization across markets, power grids, communication networks, transportation, and defense. Yet, this shared temporal framework, engineered through atomic clocks, satellites, and digital synchronization, faces growing vulnerabilities ...
Bilal M. Ayyub
wiley   +1 more source

Los desafíos de protección de la movilidad [PDF]

open access: yes, 2014
Es fácil decir que las personas que huyen de Siria deben permanecer en campamentos o ciudades satélites, pero las personas se trasladan por diversas razones, por lo que los programas y servicios deben adaptarse para ...
Philips, Melissa, Starup, Kathrine
core   +1 more source

Effect of Land Cover Type on 3D Deformation Recovery From Synthetically Deformed High Resolution Satellite Optical Imagery

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The limits of detection for earthquake surface deformation in the spatial domain have improved with advances in remote sensing imagery data availability, resolution, and analysis. Sub‐pixel correlation and digital elevation model (DEM) differencing from sub‐meter, earthquake‐spanning satellite optical imagery has enhanced surface rupture ...
C. Hanagan, S. B. DeLong, N. G. Reitman
wiley   +1 more source

Esfuerzos cooperativos y etapas previas en la internacionalización: el caso de Telefónica [PDF]

open access: yes, 2016
Este artículo explora un terreno relativamente poco cultivado por los historiadores económicos de los países de habla hispana pese al formidable atractivo de sus implicaciones económicas, tecnológicas, normativas y geopolíticas.
Calvo Calvo, Ángel, 1949-
core  

Seismo‐Acoustic Detection and Localization of Iceberg Collapse in Atka Bay, Antarctica

open access: yesGeophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract On 12 January 2022, an iceberg collapsed at the edge of frozen Atka Bay, Antarctica. The event generated seismic, hydroacoustic, and atmospheric infrasound waves recorded by a local network comprising land‐ and iceshelf‐based seismometers, an underwater hydrophone, and an on‐ice infrasound array.
G. Averbuch   +5 more
wiley   +1 more source

Análisis semiológico de los Discursos del FMI y Fidel Castro

open access: yesChasqui, 2015
CHASQUI presenta aquí una rara pieza de información. Sobre la base de dos entrevistas exclusivas, una con el FMI y la otra de Fidel Castro acerca de la deuda externa, que marcan posiciones irreconciliables ideológicas y pragmáticas, que a simple vista ...
Hernán Puentes
doaj  

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