Results 81 to 90 of about 41,569 (262)

Direct Observation of Vortex Liquid Droplets in the Iron Pnictide Superconductor CaKFe4As4 at 0.5Tc

open access: yesAdvanced Science, EarlyView.
Vortex matter in the iron‐based superconductor CaKFe4As4${\rm CaKFe}_4{\rm As}_4$ is visualized at the nanoscale, revealing the unexpected emergence of vortex‐liquid droplets far below the critical temperature. These localized fluctuating regions coexist with a vortex solid, demonstrating that dissipation‐related dynamics arise well before macroscopic ...
Óscar Bou Marqués   +9 more
wiley   +1 more source

Defect‐Guided Assembly of Aperiodic and Flexible Metal–Organic Frameworks From Pre‐Formed Cages

open access: yesAngewandte Chemie, EarlyView.
A cage‐directed strategy is used to program topologically correlated defects and induce aperiodicity in HKUST‐1‐type MOFs. A missing carboxylate group in the linker drives the formation of Cu‐vacancy domains, while Rh(II) cages spatially confine these defects.
Francisco Sánchez‐Férez   +12 more
wiley   +2 more sources

Acantoma de células claras abdominal. Lesión infrecuente en localización atípica abdominal

open access: yesARS Medica, 2016
Resumen Introducción. El acantoma de células claras es una lesión tumoral benigna relativamente infrecuente que muestra unas características histológicas que permiten su diagnóstico. Método.
Francisco Javier Torres Gómez   +2 more
doaj   +1 more source

Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts

open access: yesAdvanced Science, EarlyView.
Microfluidic devices are used to prepare Cu2O nanoparticles under laminar flow conditions, which exhibit enhanced selectivity in the CO2‐to‐C2+ reaction due to their nanoporosity and high defect concentration. Cu2O prepared using standard solution methods displays decreased CO2‐to‐C2+ selectivity due to the absence of similar properties. Altogether, we
Carlota Casas   +16 more
wiley   +1 more source

π‐Extended COUPY Fluorophores for Targeted Near‐Infrared Fluorescence and Lifetime Imaging in Live Cells

open access: yesAngewandte Chemie, EarlyView.
π‐Extended COUPY dyes, obtained by vinylogation of coumarin‐based COUPY scaffolds, shift absorption, and emission deep into the NIR region while preserving compactness and synthetic accessibility. These bright, photostable dyes enable live‐cell imaging, FLIM, and site‐specific peptide conjugation, offering a modular platform for targeted bioimaging and
Diego Abad‐Montero   +11 more
wiley   +2 more sources

SPICE‐Compatible Compact Modeling of Cuprate‐Based Memristors Across a Wide Temperature Range

open access: yesAdvanced Electronic Materials, EarlyView.
A physics‐guided compact model for YBCO memristors is introduced, incorporating carrier trapping, field‐induced detrapping, and a differential balance equation to describe their switching dynamics. The model is compared with experiments and implemented in LTspice, allowing realistic circuit‐level simulations.
Thomas Günkel   +6 more
wiley   +1 more source

Efectividad de los ácidos grasos hiperoxigenados en la prevención de las úlceras vasculares: Una revisión sistemática

open access: yesGerokomos
Objetivos: conocer la eficacia de los ácidos grasos hiperoxigenados (AGHO) en la prevención de las úlceras vasculares. Determinar el nivel de evidencia existente sobre el uso de ácidos grasos hiperoxigenados en la prevención de las úlceras vasculares ...
Eva Vives Sánchez   +4 more
doaj  

RÉGIMEN JURÍDICO DE LA REVOCACIÓN DE LOS ACTOS TRIBUTARIOS [PDF]

open access: yesCrónica Tributaria, 2010
En el presente trabajo se analiza el régimen jurídico de la figura de la revocación regulada en el artículo 219 de la Ley 58/2003, de 17 de diciembre, General Tributaria (LGT).
Elena Roldán Centeno   +1 more
doaj  

Assessing Photovoltaic Recycling Capacities and Policy Gaps in the European Union

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This study maps photovoltaic recycling capacity in the EU and key global regions, highlighting gaps between growing waste volumes and available infrastructure. It combines survey insights and policy analysis to identify recycling bottlenecks and offers recommendations to boost circularity in the solar sector.
Nieves Espinosa   +3 more
wiley   +1 more source

Influencia de una campaña informativa para promover la vacunación antigripal entre los profesionales de un hospital

open access: yesMedicina y Seguridad del Trabajo
Introducción: la Organización Mundial de la Salud (OMS) recomienda la vacunación antigripal a todos los trabajadores sanitarios. En España la cobertura oscila entre 11,4 y 38%.
María José Molina Garrido   +3 more
doaj  

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