Results 41 to 50 of about 2,574 (237)

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

A shared mucosal gut microbiota signature in primary sclerosing cholangitis before and after liver transplantation

open access: yesHepatology, EarlyView., 2022
In this study of the gut mucosal microbiota in primary sclerosing cholangitis (PSC), we found consistent microbiota features associated with PSC and recurrent PSC, PSC with inflammatory bowel disease and a persistent gut dysbiosis after liver transplantation Abstract Background and Aims Several characteristic features of the fecal microbiota have been ...
Mikal Jacob Hole   +12 more
wiley   +1 more source

Anisotropic NMR as a Crucial Tool for Differentiation of Epimers With High Conformational Flexibility

open access: yesAngewandte Chemie, EarlyView.
Epimer discrimination remains challenging due to subtle NMR differences. Here, we propose a methodology based on 13C‐RCSA and RDC anisotropic parameters, enabling the assignment of two flexible tetraprenyltoluquinol epimers (1a and 1b) with remote stereoclusters.
Juan Carlos C. Fuentes‐Monteverde   +6 more
wiley   +2 more sources

Participación ciudadana en el gobierno de Bachelet: consejos asesores presidenciales

open access: yesAmérica Latina Hoy, 2009
RESUMEN: En el artículo se exponen los resultados preliminares de un estudio que analiza tres consejos asesores del gobierno de Michelle Bachelet (2006-2010) en Chile. Estos consejos tenían el mandato de formular políticas públicas en temas centrales del
Carolina AGUILERA
doaj   +3 more sources

La crisis del socialismo real. Semejanzas y diferencias entre las disidencias del Bloque del Este

open access: yesHistoria Actual On-Line, 2009
Este artículo trata de las causas de la crisis del socialismo real en los países de Europa Centro-Oriental y las disidencias que surgieron frente al “modelo soviético”.
María Dolores Ferrero Blanco
doaj  

Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions

open access: yesAdvanced 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

Defect‐Guided Assembly of Aperiodic and Flexible Metal–Organic Frameworks From Pre‐Formed Cages

open access: yesAngewandte Chemie, EarlyView.
A cage‐directed strategy is used to program topologically correlated defects and induce aperiodicity in HKUST‐1‐type MOFs. A missing carboxylate group in the linker drives the formation of Cu‐vacancy domains, while Rh(II) cages spatially confine these defects.
Francisco Sánchez‐Férez   +12 more
wiley   +2 more sources

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

E. coli Extracellular Matrix: A Tunable Composite With Hierarchical Structure

open access: yesAdvanced Materials, EarlyView.
The complex composite‐like mechanical behavior of E. coli biofilm matrix is the result of a synergic contribution of the rigid curli and swelling pEtN‐cellulose, and emerges from specific ratio and assembly conditions. The interactions between the two fibers govern biofilm hydration and characteristic wrinkling patterns, providing crucial insights for ...
Macarena Siri   +7 more
wiley   +1 more source

PARTICIPACIÓN DE LAS CIUDADANAS EN EL GOBIERNO LOCAL: EL CASO DE LEÓN GUANAJUATO

open access: yesRevista de Estudios de Género: La Ventana, 2013
e ste artículo presenta los resultados de la investigación, llevada a cabo en el municipio de l eón, g uanajuato, que tiene como obje - tivo identificar el perfil de la persona participante promedio en los comités de vecinos de los municipios; esto es ...
VANESSA GÓNGORA CERVANTES
doaj  

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