Results 51 to 60 of about 391,924 (273)

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

Advanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal, Manuel Romero, Lennart van den Hengel, Nathan Rodkey, Kassio P. S. Zanoni, Gabriel Lozano, Cristina Roldán‐Carmona, Michele Sessolo, Hernán Míguez, Henk J. Bolink   +9 more
wiley   +1 more source

Colombian Tax Bill – Significant Economic Presence

Revista de Derecho Fiscal, 2023
Gravar la economía digital es un desafío desde el punto de vista político y económico. Desde hace mucho tiempo se ha debatido que los impuestos sobre la renta deberían recaudarse allí donde se crea valor.
Camilo Otálora
doaj   +1 more source

Compressive image sensor architecture with on-chip measurement matrix generation [PDF]

, 2017
A CMOS image sensor architecture that uses a cellular automaton for the pseudo-random compressive sampling matrix generation is presented. The image sensor employs in-pixel pulse-frequency modulation and column wise pulse counters to produce compressed ...
Carmona Galán, Ricardo, Rodríguez Vázquez, Ángel Benito, Trevisi, Marco   +2 more
core   +1 more source

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

Advanced 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, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Design of a compact and low-power TDC for an array of SiPM's in 110nm CIS technology [PDF]

, 2017
Silicon photomultipliers (SiPMs) are meant to substitute photomultiplier tubes in high-energy physics detectors and nuclear medicine. This is because of their -to name a few interesting properties- compactness, lower bias voltage, tolerance to magnetic ...
Bandi, Franco, Carmona Galán, Ricardo, Rodríguez Vázquez, Ángel Benito, Vornicu, Ion   +3 more
core   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Desafíos tributarios de la digitalización de la economía: una reflexión en torno al Proyecto BEPS

The Anáhuac Journal, 2023
Los nuevos modelos de negocios sientan sus bases en la economía digital, no requieren presencia física o intermediarios, interactúan con consumidores de diversas jurisdicciones gracias al uso progresivo de tecnologías de comunicación e internet, con ...
Diana L. Becerra-Peña, Alejandra Rosales Soto, Patricia Gutiérrez Moreno   +2 more
doaj   +1 more source

High‐Fidelity Synthetic Data Replicates Clinical Prediction Performance in a Million‐Patient Diabetes Cohort

Advanced Science, EarlyView.
This study generates high‐fidelity synthetic longitudinal records for a million‐patient diabetes cohort, successfully replicating clinical predictive performance. However, deeper analysis reveals algorithmic biases and trajectory inconsistencies that escape standard quality metrics. These findings challenge current validation norms, demonstrating why a
Francisco Ortuño, Víctor M. de la Oliva Roque, Javier‐Ignacio Ramirez‐Lopez, David P. Kreil, Joaquín Dopazo, Carlos Loucera   +5 more
wiley   +1 more source

La economía digital en el Ecuador

Serie Científica de la Universidad de las Ciencias Informáticas, 2023
El mundo actual se encuentra en constante cambios, transformaciones e innovaciones, donde las teorías van cambiando a medida que surgen nuevos descubrimientos y avances de índole científico-tecnológico.
Teresa del Pilar Calderón Lucio, Susana Fabiola Gutiérrez Regalado, Raquel Vera Zavala, Kirenia Maldonado Zuñiga   +3 more
doaj  

Geopolítica y orden global

Campos Neutrais, 2022
A partir de las tendencias y cambios basados en la rápida globalización de los mercados, la crisis sistémica del capitalismo, el capital transnacionalizado y los efectos de una economía digital sustentada en el valor del conocimiento, la tecnología y la
Elaine Valton Legrá
doaj   +1 more source