Results 31 to 40 of about 1,539,188 (290)

On the Quantum Kolmogorov Complexity of Classical Strings

open access: yes, 2009
We show that classical and quantum Kolmogorov complexity of binary strings agree up to an additive constant. Both complexities are defined as the minimal length of any (classical resp. quantum) computer program that outputs the corresponding string. It
Mueller, Markus
core   +1 more source

The medicine is worse than the disease: Comment on Delhey and Kohler's proposal to measure inequality in happiness using 'instrument-effect-corrected' standard deviations [PDF]

open access: yes, 2012
Inequality of happiness in nations can be measured using the standard deviation of responses to surveys questions. The standard-deviation is not quite independent of the mean, being zero when everybody is maximally happy or unhappy while the possible ...
Veenhoven, R. (Ruut)
core   +2 more sources

Sex Representation in US Stroke Clinical Trials: A Decade of Trends and Challenges

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Stroke remains a major cause of disability and mortality in the US, with significant sex‐based disparities, and females remain underrepresented in stroke clinical trials. We aimed to examine sex representation in US‐based stroke clinical trials, identify trial characteristics associated with higher female enrollment (≥ 50%), and ...
Chaitali Dagli   +5 more
wiley   +1 more source

Evolution of educational inequalities in life and health expectancies at 25 years in Belgium between 2001 and 2011: a census-based study

open access: yesArchives of Public Health, 2019
Background Reducing socio-economic health inequalities is a public health priority, necessitating careful monitoring that should take into account changes in the population composition.
Françoise Renard   +4 more
doaj   +1 more source

Inequality in experiences of physics education : Secondary school girls’ and boys’ perceptions of their physics education and intentions to continue with physics after the age of sixteen [PDF]

open access: yes, 2013
This paper explores the factors that are associated in England with 15 year-old students’ intentions to study physics post-16, when it is no longer compulsory.
Mujtaba, Tamjid, Reiss, Michael
core   +4 more sources

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Inversión extranjera directa y desigualdad en el ingreso en Latinoamérica: evidencia de la cointegración de datos de panel

open access: yesCuadernos de Economía, 2016
Este estudio muestra evidencia empírica sobre la relación entre inversión extranjera directa (FDI) y desigualdad en el ingreso en países de Latinoamérica, usando técnicas de cointegración en datos de panel.
Werner Kristjanpoller, Rodolfo Salazar
doaj   +1 more source

Correlation of Radiographic and Patient Assessment of Spine Following Correction of Nonstructural Component in Juvenile Idiopathic Scoliosis [PDF]

open access: yesAnnals of Rehabilitation Medicine, 2018
Objective To evaluate the association between progression of curvature of scoliosis, and correction for functional component in patients with juvenile idiopathic scoliosis (JIS).
Jin Gyeong Lee   +4 more
doaj   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg   +5 more
wiley   +1 more source

First-rotation growth and stand structure dynamics of tree species in organic and conventional short-rotation agroforestry systems

open access: yesHeliyon, 2018
Short-rotation agroforestry systems can potentially maintain agricultural production and promote conservation of soil and biodiversity, especially if grown organically.
J.A. Huber, M. Matiu, K.-J. Hülsbergen
doaj   +1 more source

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