Results 1 to 10 of about 2,668 (182)
Implementation and validation of an electroencephalography dual‐task paradigm for detection of preclinical Alzheimer’s Disease [PDF]
Abstract Background Dementia has a worldwide prevalence of 55 million people, with 60 to 70% of cases attributed to Alzheimer’s Disease (AD). In Antioquia, Colombia, exists a group of families with early‐onset AD associated to PSEN1‐E280A, a genetic variant with an autosomal dominant inheritance pattern and a penetrance over 99%, which enables the ...
Rada J +15 more
europepmc +2 more sources
The Coupling of Ferroelectric Polarization and Oxygen Vacancy Migration Enables Electrically Controlled Thermal Memories. [PDF]
Ferroelectric Hf0.5Zr0.5O2 epitaxial thin films exhibit a non‐volatile, electrically controlled thermal conductivity enabled by the coupling between oxygen vacancy migration, acting as phonon scatterers, and ferroelectric polarization, acting as ion migration valve.
Barneo D +13 more
europepmc +2 more sources
Substrate scope of ancestral versus modern family-1 glycosidases. [PDF]
Abstract Experimental studies support that protein engineering based on ancestral sequence reconstruction often leads to variants with biotechnologically useful biomolecular properties. These may include high stability, enhanced conformational flexibility and a modified catalysis range.
Gutierrez-Rus LI +11 more
europepmc +2 more sources
Radiation Pattern Reconfigurable Antenna for IoT Devices
Based on the characteristic mode theory, a versatile radiation pattern reconfigurable antenna is proposed. The analysis starts from two parallel metallic plates with the same and different dimensions.
Zakaria Mahlaoui +2 more
doaj +1 more source
Adjusting the ChildProgramming Methodology to Educational Robotics Teaching and Debugging
In 2013, the ChildProgramming methodology was presented as a model for teaching programming to groups of children between 10 and 12 years old, applying collaborative, playful, and agile development strategies.
Rene Fabián Zúñiga Muñoz +5 more
doaj +1 more source
La pérdida de la visión ha sido uno de los casos más desafortunados de pérdida de los sentidos. Es sabido que la perdida de la visión disminuye considerablemente la calidad de vida de una persona, sin importar la edad.
María Camila Robledo Pacheco +3 more
doaj +1 more source
ESTUDIO DE LA APLICACIÓN DE LOS METAMATERIALES EN EL DISEÑO DE ATENAS TEXTILES
Este articulo presenta una revisión documental concerniente al diseño de antenas textiles a través del uso de metamateriales; mencionando también los tipos de antenas, sus técnicas de implementación, su elaboración, los materiales para su construcción y ...
Claudia Herrera +2 more
doaj +1 more source
Actualmente los enlaces ópticos en espacio libre tienen diversas aplicaciones (algunas comerciales y otras en desarrollo) tales como: a) enlaces horizontales de comunicaciones dentro de la misma capa de la atmósfera terrestre (denominados enlaces FSO por
Arturo Arvizu Mondragón +5 more
doaj +1 more source
Dirección de comunicación y sector de telecomunicaciones: estudio de caso [PDF]
Desde la academia, la comunicación y su papel en la gestión de las compañías continúa siendo objeto de intenso debate. Sin embargo, cuando se profundiza desde un ángulo estratégico, apenas se hallan análisis empíricos equiparables a otras realidades de ...
Mónica Recalde +1 more
doaj +2 more sources

