Results 51 to 60 of about 2,737 (192)

TOUCHED FOR THE VERY FIRST TIME ? COLLECTIVE DEFENSE, CRISIS MANAGEMENT AND COOPERATIVE SECURITY IN THE NEW NATO STRATEGIC CONCEPT

open access: yesRevista Conjuntura Austral, 2015
The aim is to explain why NATO adopted a new Strategic Concept in 2010. The central argument indicates that the adoption of the new Strategic Concept is related to the need to improve collective defense to ensure the set of capabilities needed to cope ...
Diego Santos Vieira de Jesus
doaj   +1 more source

Iontronically Tunable Broadband Graded Index Films

open access: yesAdvanced Optical Materials, Volume 13, Issue 7, March 4, 2025.
A three‐terminal organic electrochemical transistor (OECT) based on PEDOT:PSS film allows to obtain a tunable device with spatially modulated optical properties. Within the polymer film, the tuning of the bias level among electrodes induces a non‐uniform charge distribution, which gives rise to a spatially‐dependent refractive index profile across the ...
Paolo Franceschini   +9 more
wiley   +1 more source

NATO´s Partners in Afghanistan: Impact and Purpose

open access: yesRevista UNISCI, 2010
Desde el 2003, la misión de la OTAN, ISAF (Fuerza de Asistencia para la Seguridad Internacional) se ha apoyado en las contribuciones en tropas no sólo de países de la OTAN sino también en socios EAPC/PfP y los llamados socios globales (países no europeos
Rebecca Moore
doaj  

Bottom–Up Metasurfaces for Biotechnological Applications

open access: yesAdvanced Science, Volume 12, Issue 9, March 6, 2025.
Bottom–up metasurfaces represent a new generation of optical components made up of randomly organized meta‐atoms. Due to their exceptional morphological and optical properties, these metasurfaces are utilized in modern applications. These advanced materials have applications in various biotechnological fields, including biosensing and environmental ...
Francesca Petronella   +4 more
wiley   +1 more source

Geometric Edge Modelling in Self‐Supervised Learning for Enhanced Indoor Depth Estimation

open access: yesIET Computer Vision, Volume 19, Issue 1, January/December 2025.
We developed a novel algorithm for self‐supervised indoor depth estimation, focussing on improving edge depth predictions by refining depth supervision at edges through a geometric edge model. This approach significantly enhanced edge accuracy and resulted in a 19% improvement in visual odometry performance when integrated with a leading depth ...
Niclas Joswig, Laura Ruotsalainen
wiley   +1 more source

La Organización del Tratado del Atlántico Norte y la ampliación al Este: ¿hasta Ucrania?

open access: yesRevista de Relaciones Internacionales, Estrategia y Seguridad, 2018
En este estudio se analiza la política de ampliación de la OTAN durante la Posguerra Fría, y las razones del actual estancamiento de la denominada política de puertas abiertas.
Maria Martínez Carmena
doaj   +1 more source

WS2 Nanotube Transistor for Photodetection and Optoelectronic Memory Applications

open access: yesSmall, Volume 20, Issue 44, November 1, 2024.
An individual multi‐walled tungsten disulfide (WS2) nanotube serves as a channel of a field‐effect transistor, exhibiting p‐type behavior. The device features slightly asymmetric Schottky barriers at drain and source contacts, enabling self‐powered photoconduction. It also shows photoresponsivity of a few milliAmps per Watt that increases exponentially
Aniello Pelella   +12 more
wiley   +1 more source

Right Strategy, Wrong Place – Why NATO´s Comprehensive Approach Will Fail in Afghanistan

open access: yesRevista UNISCI, 2010
La OTAN ha tenido razón en adoptar conjuntamente una Aproximación Integral (CA) implicando a toda la comunidad internacional ya que es un prerrequisito para el éxito en las operaciones de respuesta en situaciones de crisis.
Peter Viggo Jakobsen
doaj  

Los dilemas de la Europa poscomunista frente a la expansión de la OTAN

open access: yesRevista Mexicana de Ciencias Políticas y Sociales, 2015
En este artículo, la autora analiza con detalle lo que ha sido la expansión de la OTAN hacia el este de Europa después del fin de la Guerra Fría.
Daniela Spenser
doaj   +1 more source

High‐Order Nonlinear Frequency Conversion in Transparent Conducting Oxide Thin Films

open access: yesAdvanced Optical Materials, Volume 12, Issue 28, October 4, 2024.
Subwavelength aluminum zinc oxide films are optically pumped near their epsilon‐near‐zero point, observing relatively efficient frequency up‐conversion reaching the seventh order. A modified hydrodynamic‐Maxwell model is used, accounting for linear and nonlinear dispersions, nonlocal effects, and nonlinearities across a broad spectral region, thus ...
Wallace Jaffray   +8 more
wiley   +1 more source

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