Results 271 to 280 of about 136,147 (290)

Retractions in rheumatology: trends, causes, and implications for research integrity

Arthritis Care &Research, Accepted Article.
Objective We aimed to describe the trends and main reasons for study retraction in rheumatology literature. Methods We reviewed the Retraction Watch database to identify retracted articles in rheumatology. We recorded the main study characteristics, authors’ countries, reasons for retraction, time from publication to retraction, and trends over time ...
Anna Maria Vettori, Michele Iudici
wiley   +1 more source

Predictive analysis of ratings of perceived exertion in elite Gaelic football. [PDF]

Biol Sport
Sheridan D, Brady AJ, Nie D, Roantree M.
europepmc   +1 more source

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

International 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, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Walking in a self-selected enjoyable colored environment: exploring gender-specific effects and dynamics of affects, perceived exertion, heart rate, and preferred walking speed. [PDF]

Front Psychol
Hassanein YE, Briki W, Majed L.
europepmc   +1 more source

The effects of ten and sixteen inch wheelchair handrims on metabolic and perceived exertion variables of male paraplegics

, 1988
G. W. Gayle
openalex   +1 more source

Abstract No: 271 Effect of Ambient Temperature on Physiological Cost Index, Heart Rate Recovery, and Rate of Perceived Exertion Following a One-Mile Treadmill Walk Test in College Going Students

Dhruvi Gadhvi, Harita Vyas
openalex   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Rate of Perceived Exertion Based on Repetitions in Reserve Versus Percentage of One-Repetition Maximum for Resistance Training Prescription in Cardiac Rehabilitation: A Pilot Study. [PDF]

J Cardiovasc Dev Dis
Gismondi A, Iellamo F, Caminiti G, Sposato B, Gregorace E, D'Antoni V, Di Biasio D, Vadalà S, Franchini A, Mancuso A, Morsella V, Volterrani M.   +11 more
europepmc   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

International Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García, Axel Coronado‐Andrade, Gerardo Espinosa‐Pérez, Luis Alvarez‐Icaza   +3 more
wiley   +1 more source

The impact of a commercial lower extremity exoskeleton on metabolic load, perceived exertion, and physiological response to a challenging military relevant task: A randomized cross-over design pilot study. [PDF]

PLoS One
Sefton JM, Neal FK, Agostinelli PJ, Bordonie NC, Whitley PE, Pickle NT, Roos PE.   +6 more
europepmc   +1 more source