Results 51 to 60 of about 2,630,297 (317)

Phase Boundary Engineering of Co2P‐CoP Branched Nanoparticles Enhances Cobalt Oxidation for Oxygen Evolution Electrocatalysis

open access: yesAdvanced Materials, EarlyView.
Phase boundaries between Co2P and CoP are constructed through a controlled transformation of Co to Co2P‐CoP branched nanoparticles. The polycrystalline mixed‐phase Co2P‐CoP branches are enriched with phase boundaries that stabilize Co active sites for OER. This work highlights phase boundary engineering as a powerful approach to tailor active sites and
Zeno R. Ramadhan   +10 more
wiley   +1 more source

Narration of Lives and Nations

open access: yesNordicom Review, 2011
Iran was one of the participants in the 2006 football World Cup (WC) in Germany. A special WC programme on TV2, one of two primary Norwegian TV channels, entitled World Cup Studio (Norwegian: VM-studio), offered various reports for a Norwegian audience ...
Alghasi Sharam
doaj   +1 more source

Reconversión productiva en Yucatán, México: De maíz y pastizales a soja

open access: yesPapeles de Geografí­a, 2019
             La soja en el estado de Yucatán, México, es un cultivo relativamente nuevo (a partir de 2009) que, sin embargo, se ha expandido aceleradamente en tierras anteriormente sembradas con maíz y pastizales para ganadería, en el marco de un ...
Flavia Echánove Huacuja
doaj   +1 more source

Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells

open access: yesAdvanced Materials, EarlyView.
Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park   +14 more
wiley   +1 more source

La cuestión de Belice

open access: yesRevista Mexicana de Ciencias Políticas y Sociales, 1957
-
Gobierno de México
doaj  

Murder in Mexico [PDF]

open access: yesIndex on Censorship, 2008
Brian Glanville was expecting to cover the Olympics: he found himself reporting a ...
openaire   +1 more source

Collagen‐Based Gut‐on‐Chip for In Vitro Modeling of Intestinal Barrier Function and Host‐Pathogen Interactions

open access: yesAdvanced Materials Technologies, EarlyView.
A collagen‐based gut‐on‐chip model replicates the intestinal extracellular matrix, supporting villi‐like structures, tight junctions, and mucin production. This biomimetic platform enables rapid epithelial differentiation and functional barrier formation.
Fernanda López García   +4 more
wiley   +1 more source

Bismuth Nanogratings With Narrow Plasmon Resonances for Dynamic Polarized Color Generation and Colorimetric Sensing

open access: yesAdvanced Optical Materials, EarlyView.
Bismuth nanogratings are fabricated by pulsed laser deposition onto the nanostructured silver and polycarbonate surfaces of DVDs. They display spectrally‐narrow plasmon resonances yielding vivid colors, which are strongly sensitive to the polarization of light, angle of incidence, nature of the underlying surface and of the surrounding medium (air or ...
Fernando Chacón‐Sánchez   +5 more
wiley   +1 more source

Notas sobre a historiografia da educação rural no México - Notes about the historiography of rural education in Mexico

open access: yesHistória da Educação, 2011
NOTAS SOBRE A HISTORIOGRAFIA DA EDUCAÇÃO RURAL NO MÉXICOResumoNeste artigo, faço uma revisão geral da historiografia acerca da educação rural, promovida após a Revolução de 1910, no México. Inicialmente, analiso a política educativa e, posteriormente, o
Alicia Civera, Mexico
doaj  

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Home - About - Disclaimer - Privacy