Results 31 to 40 of about 58,748,021 (194)

Seroprevalencia de citomegalovirus en donantes de órganos y receptores de trasplante renal, Colombia, 2010-2014

Biomédica: revista del Instituto Nacional de Salud, 2016
Introducción. La infección por citomegalovirus ha cobrado gran importancia en los receptores de trasplantes debido a las implicaciones clínicas que puede tener en pacientes inmunocomprometidos. Objetivo.
Yazmín Rocío Arias-Murillo, Karime Osorio-Arango, Jorge Alberto Cortés, Mauricio Beltrán   +3 more
doaj   +1 more source

Del conocimiento individual a la sinergia colectiva: potenciando la colaboración en las redes de investigación

Estrategia y Gestión Universitaria, 2023
En el contexto actual de la sociedad del conocimiento, las redes de investigación desempeñan un papel fundamental en la colaboración y el intercambio de conocimientos. el propósito de esta investigación es explorar sus dinámicas y desafíos, con el fin de
Daniel Roman-Acosta, Benjamín Barón Velandia   +1 more
doaj   +1 more source

Predictive Ability of Plasma p‐tau217 for β‐Amyloid Status: A Prospective Multicenter Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma tau phosphorylated at threonine 217 (p‐tau217) measured with fully automated platforms has shown high accuracy for Alzheimer's disease (AD) diagnosis, but real‐world multicenter data remain limited. We aimed to validate the diagnostic performance of p‐tau217 for identifying AD pathology in a real‐world multicenter cohort ...
Miquel Massons, Nuria Guillen, Jordi Sarto, Neus Falgàs, Sergi Borrego‐Écija, Diana Esteller‐Gauxax, Magda Castellví, Adrià Tort‐Merino, Agnès Pérez‐Millan, Anna Antonell, Josep M. Augè Fradera, Gerard Piñol, Iolanda Riba, Anna Carnes‐Vendrell, Marta Cullell, Maria Teresa Osuna, Lorena Bajo, Teresa Romero, Eva Bonjoch, Joan Bello, Susana Fernández, Marta Balagué, Isabel Gómez‐Ruiz, Anuncia Boltes, Claustre Pont, Raquel Cuevas, Sara Carrillo, Laura Iglesias, Teresa Maria Casadevall Codina, Lorena Grau Guinea, Fernando Jose Espada, Raquel Sánchez‐Valle, Mircea Balasa, Albert Lladó   +33 more
wiley   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Producción de Conocimiento Científico en la periferia. Consideraciones acerca del carácter explicativo del concepto‘Arenas transepistémicas de investigación’ en contextos periféricos. [PDF]

, 2004
Este trabajo busca indagar en qué medida el concepto ‘arenas transepistémicas de investigación’ puede ser una herramienta útil para dar cuenta de las características que asume la inserción internacional de grupos locales (ubicados en la periferia) de ...
María, Taborga Ana
core  

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Retos y posibilidades de la enseñanza de la historia en Colombia: Lecciones del caso mexicano

Cambios y Permanencias, 2016
This essay reflects on the challenges and possibilities of teaching history in Colombia, with reference to the experience of the Mexican process.
Misael Andrés Quintero Díaz
doaj  

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

Advanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar, María del Carmen Giménez‐López   +1 more
wiley   +1 more source

Unit-Level Analysis of Smart Lighting and Remote Management: A Technical Reference for Energy Savings and Carbon Footprint Reduction in Cities, Industrial Sectors, and Intelligent Environments

Smart Cities
Smart lighting is becoming a strategic component of intelligent and low-carbon urban infrastructure because it combines efficient illumination with connectivity, remote management, and continuous operational monitoring. This study proposes a reproducible
Cristian Cristobal Cuji Cuji, Luis Fernando Tipan Vergara, Jorge Paul Muñoz Pilco, Juan Manuel Roldan Fernández, Jesús Manuel Riquelme Santos   +4 more
doaj   +1 more source