Results 121 to 130 of about 2,277,393 (310)

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

open access: yesAdvanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón   +6 more
wiley   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

open access: yesAdvanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Investigación y producción sobre didáctica en el estado de Minas Gerais: un análisis del campo investigativo en el ámbito de los postgrados

open access: yesRevista Iberoamericana de Educación, 2012
El trabajo presenta datos referentes al análisis cuanti-cualitativo de las investigaciones y producciones de los programas de postgrado en educación brasileños, tomando el estado de Minas Gerais como locus y universo de estudio.
Andréa Maturano Longarezi   +1 more
doaj  

Resolving Complex Multiscale Structure of Magneto‐ and Electroactive Polymer Composites With an Ionic Liquid

open access: yesAdvanced Materials, EarlyView.
Multiscale ionic liquid segregation into nano‐sized domains in the unconfined amorphous polymer phase and into micron‐sized pores enables a coupled magneto‐ and electroactive responses. ABSTRACT A multiscale understanding of the structure of ionogels – nanoparticle‐free polymer composites incorporating ionic liquids – is essential for enhancing their ...
Andrey Shibaev   +16 more
wiley   +1 more source

Agenda-setting: investigaciones sobre el primero y el segundo nivel

open access: yesCommunication & Society (Formerly Comunicación y Sociedad), 1996
Cuando en 1972 McCombs y Shaw formularon por primera vez la teoría del efecto agenda-setting, introducían una modificación sustancial en la investigación sobre los efectos de los medios de difusión en la opinión publica.
Esteban López-Escobar   +1 more
doaj  

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

open access: yesAdvanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena   +10 more
wiley   +1 more source

Revisión del género Uncaria. Uncaria tomentosa y uncaria guianensis : las "Uña de gato"

open access: yesRevista de Química, 1995
El artículo no presenta resumen.
Olga Lock de Ugaz
doaj  

Effect of oxidizing concentration on the corrosion resistance of the cerium conversion coating on galvanized steel [PDF]

open access: yes, 2014
Ce-based conversion films have been assessed as alternatives for replacement of Cr6+-based films,which have been forbidden for their toxicity and carcinogenic properties.
Costa, Ilda   +5 more
core   +2 more sources

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

open access: yesAdvanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza   +11 more
wiley   +1 more source

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