Results 41 to 50 of about 1,214,103 (296)
A Colloidal Quantum Dot Thermistor and Bolometer
Advanced Materials, EarlyView.This work introduces colloidal quantum dot thermistors employing a potential barrier structure to tune the activation energy of transport and hence the temperature coefficient of resistance (TCR). Upon integration with plasmonic absorbers, the CQD‐based bolometer device enables room‐temperature wavelength‐selective photodetection across the mid‐ to ...
Gaurav Kumar +7 more
wiley +1 more source
A firm-level analysis of ICT adoption in an emerging economy: evidence from the colombian manufacturing industries [PDF]
This study examines ICT adoption among 3,759 Colombian manufacturing firms, and attemptsto identify the factors that are conducive to the adoption and usage of ICT at the firm level.
Juan Gallego +2 more
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Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions
Advanced 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
Buyer and seller power in grocery retailing: evidence from Italy [PDF]
This work investigates the effect of upstream and downstream mar- ket concentration on retailers’ price-cost margins using bimonthly data over the period 1989–1992 disaggregated by retailer type and product.
Monica Giulietti
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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 +5 more
wiley +1 more source
Theorical and empirical implications of the new definition of unemployment in colombia [PDF]
In June 2000 Colombia adopted a new definition of unemployment following the standars of the International Labour Organisation (ILO). This change implied a reduction of the unemployment rate of about two (percentage) points. In this paper we contrast the
Juan Carlos Guataquí, TABORDA, Rodrigo
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A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation
Advanced Science, EarlyView.A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu +7 more
wiley +1 more source
Productivity growth in electric energy retail in Colombia. A bootstrapped malmquist indices approach [PDF]
This paper offers a productivity growth estimate for electric energy commercialization firms in Colombia, using a non-parametric Malmquist bootstrap methodology. The estimation and methodology serve two main purposes. First, in Colombia commercialization
Julieth Santamaría, Rodrigo Taborda
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A Modified Positive Velocity and Position Feedback scheme with delay compensation for improved nanopositioning performance [PDF]
, 2015 Acknowledgments This paper was sponsored by the Spanish FPU12/00984 Program (Ministerio de Educacion, Cultura y Deporte). It was also sponsored by the Spanish Government Research Program with the Project DPI2012-37062-CO2-01 (Ministerio de Economia y ...
Aphale, Sumeet Sunil +3 more
core +1 more source
Quantifying Strain and Its Effect on Charge Transport in Ge/Si Core/Shell Nanowires
Advanced Science, EarlyView.This work demonstrates strain engineering in Ge/Si core–shell nanowires (CS NWs) by tuning the Ge core‐Si shell dimensions. Polarization‐resolved µ‐Raman and geometrical phase analysis quantify the resulting strain. Electronic transport measurements demonstrate record hole mobilities up to 25 400 cm2/Vs, highlighting these Ge/Si CS NWs as a promising ...
Aswathi K. Sivan +14 more
wiley +1 more source