Results 111 to 120 of about 12,345,570 (252)

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

Degradable, Skin‐Conformal Nanocomposite‐Based Bioelectronic Patches for High‐Fidelity Electrophysiology and Gesture‐Controlled Robotics

open access: yesAdvanced Functional Materials, EarlyView.
A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong   +10 more
wiley   +1 more source

El ALCA y el destino de la inversión extranjera directa [PDF]

open access: yes
(Disponible en idioma inglés únicamente) El papel de los acuerdos de integración regional como factor determinante de la ubicación de la inversión extranjera directa (IED) se ha ido convirtiendo en un problema cada vez más importante para las economías ...
Christian Daude   +2 more
core  

Mechanistic Origins of Chemo‐Mechanical Instability and Failure in Solid‐State Lithium‐Sulfur Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Conversion‐induced sulfur expansion generates strong mechanical constraints and localized stresses within solid‐state Li‐S cathodes. Heterogeneous solid‐electrolyte confinement creates tensile strain‐energy hotspots that govern particle cracking. Larger sulfur particles accelerate fracture, while higher porosity relaxes constraint and delays damage ...
Arpan K. Sharma   +3 more
wiley   +1 more source

La imagen en el cuerpo urbano. La transformación de Madrid hacia el consumo

open access: yesUrbano, 2017
El neoliberalismo ha supuesto una transformación en la conceptualización de las clases sociales y una reconfiguración de las relaciones entre ellas.
Daniel Morcillo Álvarez
doaj  

Lone‐Pair‐Induced Lattice Distortion in Lead‐Free Hybrid Perovskites for High‐Performance Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
A lead‐free tin‐based hybrid perovskite is designed in which stereochemically active lone‐pair electrons on tin distort the crystal lattice and break its symmetry. Blended into a flexible polymer, the material converts pressure into electricity at milliwatt‐scale power density and continues working far below freezing, powering a commercial wristwatch ...
Majid Haji Bagheri   +12 more
wiley   +1 more source

Guanosine‐Quadruplex Hydrogels as Dynamic, Mechanically Tunable and Ion Conductive 3D Scaffolds for Cell Culture Applications

open access: yesAdvanced Functional Materials, EarlyView.
Versatile guanosine‐quadruplex (GQ) hydrogels are developed as dynamic biomatrices for cell culture. These scaffolds are fabricated under mild aqueous conditions, present improved stability, tunable mechanical properties within physiological ranges; fibrillar, porous microstructure, ion conductivity, and cytocompatibility.
Neha Thakur   +10 more
wiley   +1 more source

Impacto de la inversión social en la reducción de la pobreza y la desigualdad en Ecuador: Análisis de políticas públicas y resultados 2010-2023

open access: yesCiencia y Educación
Este estudio analiza el impacto de la inversión social en la reducción de la pobreza y la desigualdad en Ecuador durante el período 2010-2023. A partir de un enfoque cuantitativo, se examinan indicadores clave como la pobreza, la desigualdad (medida por
Guillermo Daniel Enríquez Loaiza
doaj  

Inversión extranjera y economía digital: impactos y desafíos en el siglo XXI

open access: yesPolítica Internacional, 2019
A partir de las tendencias y cambios basados en la rápida globalización de los mercados, la crisis sistémica del capitalismo, el capital transnacionalizado y los efectos de una economía digital sustentada en el valor del conocimiento, la tecnología y la
Elaine Valton Legrá
doaj  

Role of Structural Disorder on Phonon Transport and Thermal Conductivity in Li6PS5Br

open access: yesAdvanced Functional Materials, EarlyView.
Solid electrolytes are fast ion and slow heat conductors. Although both transport properties are governed by lattice dynamics and atomic structure, their interplay remains poorly understood. Here, we study this interrelation in anion‐ordered and disordered Li6PS5Br.
Lukas Ketter   +4 more
wiley   +1 more source

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