Dual-Band, Dual-Mode, Circularly Polarized Fully Woven Textile Antenna for Simultaneous Wireless Information and Power Transfer in Wearable Applications

El trabajo describe una antena dual-band dual-mode para transmisión inalámbrica simultánea de energía e información, con polarización circular y completamente integrada en textil. Los modos de transferencia de energía e información operan a 2.4 y 5.4 GHz, respectivamente. El elemento radiante está basado en un parche rectangular con un slot con forma de U asimétrica. El rectificador se conecta a la antena a través de un puerto con estructura T-match, que proporciona simultáneamente adaptación compleja conjugada y polarización circular. Por otro lado, para la conexión de la señal de información se utiliza un puerto coaxial convencional. Se fabricado y caracterizado un prototipo, obteniendo valores de potencia rectificada y eficiencia de conversión comparables al estado del arte relativo a antenas implementadas en tecnologías convencionales, demostrando así la viabilidad de la alternativa propuesta.Agencia Estatal de Investigación (AEI), con los proyectos PID2021-126301NA-I00 y EQC2019-005768-P. Gobierno del Principado de Asturias, con los proyectos IDE/2024/0007693, AYUD/2021/51706 e IDI/2021/000207. Universidad de Oviedo, con el proyecto GR-2010-0015

Photobiomodulation enhances cognitive function in aging rats and modulates cytochrome c oxidase activity and c-Fos expression in memory-related circuits.

This research was supported by the Ministry of Science and Innovation [MCIN/AEI/10.13039/501100011033 and PID2023–151715OB-IOO], and by the European Union NextGeneration EU/PRTR [PLEC2022–009464 and CPP2022–009646

What do flexural normal faults tell us about fold-and-thrust belts and foredeep flexures? Cantabrian zone (Ibero-Armorican Orocline core) examples

We acknowledge financial support from the research project PID2021-126357NB-I00, funded by the Spanish Ministry of Science and Innovation

Understanding cigarette smoking and cessation among adults with intellectual disability in residential services: A multiperspective study

This work was supported by the Spanish Plan Nacional sobre Drogas Ministerio de Sanidad [2023I056] and the Universidad de Oviedo [PAPI-22-PF-19]

A novel integrated approach to heat transfer enhancement using baffles and inner fins in helical coil heat exchangers

The global rise in energy demand has intensified the need for improved efficiency in thermal systems, particularly in industrial and high-load applications. Heat exchangers play a critical role in energy recovery, and enhancing their performance is essential for maximizing overall system efficiency. This study presents a numerical investigation of a shell-and-helical coil heat exchanger enhanced by the integration of shell-side baffles and tube-side internal fins. A three-dimensional model was developed to simulate turbulent flow and heat transfer across four structural configurations: a conventional design, a baffled configuration, an internally finned tube design, and a combined baffle–finned configuration. The simulation results indicate that the integrated configuration achieves the highest performance improvement, with up to a 33 percent increase in effectiveness compared to the conventional design, reaching a maximum effectiveness of 0.60. The same configuration also demonstrated a peak thermal-hydraulic performance value of approximately 1.60 at low flow rates, reflecting an effective balance between heat transfer enhancement and pressure loss. The numerical model was benchmarked against experimental data with a maximum deviation of about 2 percent, supporting its reliability. The study introduces a novel enhancement strategy that combines two geometric improvements into a single configuration, offering a compact and efficient solution for advanced thermal system applications

Synthesis and biological evaluation of novel C1 or C3 amino derivatives of A-ring 1,2,3-trisubstituted 19-nor-vitamin D3

This research was funded by the Spanish Ministerio de Ciencia e Innovación (MICINN, Project PID2022-137893OB-I00) and by the Regional Government of Principado de Asturias (Project SEK-25-GRU- GIC-24-054). T. G.-G. thanks FICYT (Asturias) for a pre-doctoral fellowship. A.V. and L.V. acknowledge funding from Fonds voor Wetenschappelijk Onderzoek-Vlaanderen (FWO grant G081723N

Enhanced remediation of organotin compounds and metal(loid)s in polluted sediments: chemical stabilization with mining-wastes and nzvi versus physical soil washing

NANOCAREM project (AEI/Spain); FEDER/EU [MCI-20-PID2019-106939 GB-I00]; Regional Government of Asturias [BP20-192]; MICIU/AEI [JDC2022-050209-I]; ESF