Results 121 to 130 of about 3,770,310 (253)

Analysis of the Electrochemical Stability of Sulfide Solid Electrolyte Dry Films for Improved Dry‐Processed Solid‐State Batteries

open access: yesAdvanced Functional Materials, EarlyView.
An adapted processing for solvent‐free argyrodite solid electrolyte films based on insights into degradation mechanisms of the widely used binder polytetrafluoroethylene is presented. By adapting the dry film processing, long‐term cycling in Si||NMC pouch cells is demonstrated over more than 1000 cycles with a capacity retention of more than 80%, and ...
Maria Rosner   +10 more
wiley   +1 more source

Histiocitosis de células de Langerhans ósea a forma poliostótica.A propósito de un caso

open access: yesMedisur, 2019
Se presenta el caso de un paciente masculino de 39 años de edad, con antecedentes de buena salud aparente que fue ingresado en la sala de clínica oncológica, por presentar dolores articulares en región costal, cervical y lumbo sacra que le dificultaban ...
Jorge César Pedroso Delgado   +3 more
doaj  

SONOCISTOGRAFIA: ESTUDIO COMPARATIVO CON URETROCISTOGRAFIA CONVENCIONAL

open access: yesRevista Chilena de Radiología
Se efectuó estudio de reflujo vesicoureteral en 17 niños empleando ultrasonografía con ecorrealzador (sonocistografía) y se compararon sus resultados con cistografía radiológica con técnica digital como estándar dorado.
Marcela Cortés S   +2 more
doaj   +1 more source

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

open access: yesAdvanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange   +11 more
wiley   +1 more source

TECNICA RADIOGRAFICA EN RADIOGRAFIA COMPUTADA

open access: yesRevista Chilena de Radiología
Esta es una corta exposición de los conceptos y procesos en radiografía digital, modo radiografía computada, y su relación con el sistema análogo folio ...
Mauricio Vergara E   +2 more
doaj   +1 more source

Pricing strategies in software platforms : video consoles vs. operating systems [PDF]

open access: yes, 2007
We study software platforms for which the total amount that users spend depends on the twosided pricing strategy of the platform firm, and on the pricing strategy of application developers.
Viecens, María Fernanda
core   +1 more source

Roll‐to‐Roll Mechanical Exfoliation for Large‐Area van der Waals Films with Preserved Crystallographic Alignment

open access: yesAdvanced Functional Materials, EarlyView.
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo   +14 more
wiley   +1 more source

Propiedades antioxidantes y aceptabilidad de gomitas de Pouteria caimito como estrategia preventiva

open access: yesRevista Cubana de Medicina Militar
Introducción: El estrés oxidativo relacionado con enfermedades crónicas se puede mitigar mediante alimentos funcionales, ricos en antioxidantes. Pouteria caimito destaca por su alto contenido de compuestos bioactivos con propiedades antioxidantes ...
Jenny Rosalyn Huerta León   +6 more
doaj  

Impacto del clima laboral en la productividad de los trabajadores en empresas de Lima

open access: yesRevista Tecnológica
El objetivo de este estudio es analizar el impacto del clima laboral en la productividad de los trabajadores, en empresas ubicadas en Lima, identificando los principales factores que influyen en dicho clima y su relación con los niveles de rendimiento ...
Eva María Ventura Hernández   +2 more
doaj   +1 more source

Enhancing and Stabilizing Hydrogen Catalysis Through [NiFe]‐Hydrogenase Immobilization Within Macroporous Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
[NiFe]‐hydrogenases efficiently catalyze hydrogen conversion, but their instability limits biotechnological applications. Here it is shown that encapsulating hydrogenase into hierarchical COFs with macro‐ and micropores and functionalized with sulfonic or carboxylic acid groups improves enzyme stability and electron transfer to electrodes.
Islam E. Khalil   +12 more
wiley   +1 more source

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