Listar Artículos de revista - Aldizkari artikuluak por título
Mostrando ítems 5759-5778 de 5870
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Virtual antenna array for reduced energy per bit transmission at Sub-5 GHz mobile wireless communication systems
This paper presents an innovative technique to synthesize a virtual antenna array (VAA) that consumes less energy than conventional antenna arrays that are used in mobile communications systems. We have shown that for a ... -
Virtual FBGs using saturable absorbers for sensing with fiber lasers
The spectral narrowing of Fiber Bragg Gratings (FBGs) introduced by unpumped Er-doped fiber (EDF) was analyzed for fiber lasers (FL). Owing to spatial hole burning (SHB), the spectral response of a virtual FBG can be ... -
Virtudes y deberes en la ethica misericordis de Concepción Arenal y su aproximación al Trabajo Social del siglo XXI
(Universidad de Zaragoza, Escuela Universitaria de Estudios Sociales, 2022) Artículo / ArtikuluaEl compromiso ético de las y los profesionales del Trabajo Social en España es una de sus características fundamentales. Pese a todo, se sigue dando un desfase entre sus declaraciones y sus realizaciones. Frente a la ... -
Visible light activation of gold nanoparticles embedded into titanium dioxide surface in electrospun polymeric coatings
This work reports the development of a functional photocatalytic coating based on a combination of polymeric electrospun fibres and nanoparticles that is intended to be activated in the visible light range. In this sense, ... -
Visión del manejo de la fragilidad en Atención Primaria
La Atención Primaria (AP) y la comunidad constituyen el medio asistencial primordial para el manejo de la fragilidad. Se cuenta con buenas directrices (Estrategia y Consenso del Sistema Nacional de Salud, Acción Conjunta ... -
Visitas ad limina de la diócesis de Pamplona conservadas en el Archivo Secreto Vaticano. Avance de relación documental
Tras ofrecer una descripción de las características y evolución histórica de la institución de la visita ad limina Apostolorum Petri et Pauli , se exponen las fuentes documentales emanadas de las ... -
Las visitas ad limina en la diócesis de Pamplona (1585-1725)
Desde que en 1585 Sixto V institucionalizara las visitas ad limina, los obispos de la diócesis de Pamplona debían cumplir con una serie de actos cada cuatro años, sobresaliendo entre ellos la elaboración de una relación ... -
Voice-activated personal assistants and privacy concerns: a Twitter analysis
This study aims to understand the extent of privacy concerns regarding voice-activated personal assistants (VAPAs) on Twitter. It investigates three key areas: (1) the effect of privacy-related press coverage on public ... -
Volatile compounds emitted by diverse phytopathogenic microorganisms promote plant growth and flowering through cytokinin action
It is known that volatile emissions from some beneficial rhizosphere microorganisms promote plant growth. Here we show that volatile compounds (VCs) emitted by phylogenetically diverse rhizosphere and non-rhizhosphere ... -
Volatile compounds other than CO2 emitted by different microorganisms promote distinct posttranscriptionally regulated responses in plants
A 'box-in-box' cocultivation system was used to investigate plant responses to microbial volatile compounds (VCs) and to evaluate the contributions of organic and inorganic VCs (VOCs and VICs, respectively) to these ... -
Volatile compounds, odour and flavour attributes of lamb meat from the navarra breed as affected by ageing
This study aimed to assess the influence of ageing on the volatile compounds, as well as odour and flavour attributes of lamb meat from the Navarra breed. Twenty-one male lambs were fed a commercial concentrate diet after ... -
Volatile organic compound optical fiber sensors: a review
Volatile organic compound (VOC) detection is a topic of growing interest with applications in diverse fields, ranging from environmental uses to the food or chemical industries. Optical fiber VOC sensors offering new and ... -
Volatility risk premia betas
This paper analyzes the cross-sectional and time-series behavior of thevolatility risk premia betas at the portfolio level. These betas show a monotonic relation with respect to the magnitude of the volatility risk premium ... -
Volatility spillovers in the European bank CDS market
From the 2007 subprime crisis to the recent Eurozone debt crisis,the banking industry has experienced terrible financial instabilitywith increasing volatility levels of bank default probability. UsingEuropean CDS spreads ... -
The volume of ERCP per endoscopist is associated with a higher technical success and a lower post-ERCP pancreatitis rate. A prospective analysis
Introduction: conflicting results have been reported regarding the influence of the annual volume of endoscopic retrograde cholangiopancreatography (ERCP) on outcome. Objective: to evaluate the influence of case volume on ... -
Volunteerism as adolescent health promotion asset: a scoping review
The Aim of this scoping review was to explore the available literature on volunteerism in adolescence and the benefits that this activity may report in their healthy development, from a salutogenic perspective. Searches ... -
VTOL UAV digital twin for take-off, hovering and landing in different wind conditions
With UAVs becoming increasingly popular in the industry, vertical take-off and landing (VTOL) convertiplanes are emerging as a compromise between the advantages of planes and multicopters. Due to their large wing surface ... -
Vulnerabilidad ambiental y vulnerabilidad climática
La protección de la vulnerabilidad es consustancial al Derecho. Muchos principios y reglas del Derecho tienen por objeto la protección del débil o del vulnerable. En los últimos tiempos la legislación está haciendo un uso ... -
La vulnerabilidad de los territorios. Estado de crisis y futuros sociales posibles
Durante las últimas décadas asistimos a una acumulación y solapamiento de crisis de distinta índole y alcance: la Gran Recesión de 2008, la Pandemia de COVID-19 de 2020 y 2021, la crisis eco-social, las crisis bélicas-hu ... -
¿Vulneradas por las crisis o vulnerables en continua crisis? Análisis de las condiciones de vida y empleo de las mujeres migrantes en el trabajo doméstico y de cuidados en un contexto de pandemia
La crisis de los cuidados en España motivó cambios importantes en la provisión de los cuidados, con cambios normativos que han regulado el derecho a los cuidados y las condiciones de un sector altamente feminizado. Estas ...