Results 71 to 80 of about 216,611 (267)

Análisis no-lineal de la convergencia regional en América Latina, 1950-2010: un modelo panel tar

open access: yesProblemas del Desarrollo, 2015
En este trabajo se analiza la hipótesis de convergencia regional en América Latina mediante un modelo de crecimiento no lineal para el periodo 1950-2010.
Domingo Rodríguez Benavides   +2 more
doaj  

Is the Budget Deficit Sustainable when Fiscal Policy is nonlinear? The Case of Spain, 1961-2001 [PDF]

open access: yes
In this paper we re-examine the long-run sustainability of budget deficits, when fiscal policy is conducted as a nonlinear process. Our empirical methodology makes use of recent developments on threshold cointegration that consider the possibility of a ...
Carmen Díaz-Roldán   +2 more
core  

A Colloidal Quantum Dot Thermistor and Bolometer

open access: yesAdvanced 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

Modelling tourism demand to Spain with machine learning techniques. The impact of forecast horizon on model selection [PDF]

open access: yes, 2016
This study assesses the influence of the forecast horizon on the forecasting performance of several machine learning techniques. We compare the fo recastaccuracy of Support Vector Regression (SVR) to Neural Network (NN) models, using a linear model as a ...
Claveria, Oscar   +2 more
core   +1 more source

Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions

open access: yesAdvanced 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

No Linealidad y Economía Austriaca

open access: yesRevista de Economía del Rosario, 2010
El objetivo de este trabajo es mostrar las similitudes que existen entre ciertos resultados formales de la dinámica no lineal y algunos productos teóricos de la escuela austriaca de la economía.
Dulce Saura Bacaicoa   +1 more
doaj  

La economía circular: un cambio de sistema productivo y comercial [PDF]

open access: yes, 2019
La Economía Circular es la gran apuesta de la Unión Europea, acogida con fuerza por España, como alternativa viable al modelo lineal de producción y consumo vigente en las sociedades actuales.
Hijosa Galindo, Cristina
core  

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

open access: yesAdvanced 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

Caracterización de pacientes con diferentes niveles de riesgo cardiovascular mediante diagramas de Poincaré [PDF]

open access: yes, 2016
En este trabajo se propone caracterizar la dinámica no-lineal de los sistemas cardíaco, vascular y respiratorio a partir de los diagramas de Poincaré. Se han analizado 46 pacientes con cardiomiopatía isquémica (ICM) o dilatada (DCM), y 35 sujetos sanos ...
Bayés Genis, Antoni   +4 more
core  

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced 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

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