Results 51 to 60 of about 761 (217)
Angewandte Chemie, EarlyView.Imine‐linked 2D covalent organic frameworks incorporating delocalized trioxotriangulene (TOT) neutral radicals were synthesized through complementary routes. Direct incorporation of an amine‐functionalized TOT radical yields a highly crystalline, porous framework (TOT‐COF‐H) with intrinsic semiconducting behavior (σRT = 1.2 × 10−4 S cm−1) and a narrow ...
Paula Escamilla +8 more
wiley +2 more sources
Interacción Cálculo y Economía: Un test previo
Rect@, 2007 Este trabajo presenta un análisis de la interacción entre cálculo y economía a través de los resultados de una encuesta sobre conocimientos previos realizada a un conjunto de estudiantes de primero de ciencias empresariales, en primera matrícula, una vez
Seijas Macías, J. Antonio +1 more
doaj
Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx
Advanced Materials, EarlyView.We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno +16 more
wiley +1 more source
Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions
Advanced Materials, EarlyView.ABSTRACT The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders.
Celia González‐Sánchez +10 more
wiley +1 more source
Economía Agraria y Recursos Naturales, 2011 El objetivo de este trabajo es analizar el impacto medioambiental de los hogares en una economía regional, incluyendo no sólo el impacto directo sino también el indirectamente generado a través de la producción de los bienes y servicios que demandan. Con
Mónica Flores, Alfredo J. Mainar
doaj +1 more source
A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation
Advanced Science, EarlyView.A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu +7 more
wiley +1 more source
Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries
Advanced Science, EarlyView.TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello +5 more
wiley +1 more source
Una aplicación de MATLAB sobre Programación No Lineal bidimensional
Modelling in Science Education and Learning, 2014 La Programación No Lineal (PNL) constituye una herramienta de amplia aplicación en la modelización de problemas de la vida real aplicados a los negocios, la economía, la empresa y la ingeniería.
Fernando Giménez Palomares +1 more
doaj +1 more source
Direct Observation of Vortex Liquid Droplets in the Iron Pnictide Superconductor CaKFe4As4 at 0.5Tc
Advanced 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
Continuous‐Flow Microfluidic Synthesis Enhances C2+ Selectivity for Cu2O Catalysts
Advanced 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