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The complex relationship between effort and heart rate: a hint from dynamical analysis

Objective: Dynamical analysis can be used to study the changes of self-regulated biological processes driven by external stimuli. Recently, heart rate during effort tests has been successfully adjusted with a simple first order differential equation …

Validity of dynamical analysis to characterize heart rate and oxygen consumption during effort tests

Performance is usually assessed by simple indices stemming from cardiac and respiratory data measured during graded exercise test. The goal of this study is to characterize the indices produced by a dynamical analysis of HR and VO2 for different …

Dynamical System Modeling of Self-Regulated Systems Undergoing Multiple Excitations: First Order Differential Equation Approach

This article proposes a dynamical system modeling approach for the analysis of longitudinal data of self-regulated homeostatic systems experiencing multiple excitations. It focuses on the evolution of a signal (e.g., heart rate) before, during, and …

Back pain occurrence and treatment-seeking behavior among nurses: the role of work-related emotional burden

PURPOSE: To assess the association of back pain and treatment-seeking behavior for such pain with work-related emotional burden (regret about care), regret coping strategies, and physical burden among newly practicing nurses.METHODS: We used data …

Imputing missing data of function and disease activity in rheumatoid arthritis registers: what is the best technique?

**Objective** To compare several methods of missing data imputation for function (Health Assessment Questionnaire) and for disease activity (Disease Activity Score-28 and Clinical Disease Activity Index) in rheumatoid arthritis (RA) patients. …

Drug retention of biological DMARD in rheumatoid arthritis patients: the role of baseline characteristics and disease evolution

AbstractObjective. To examine the association of the evolution in physician-reported and patient-reported outcomes with decision to stop biological DMARDs (bDM

Associations of regrets and coping strategies with job satisfaction and turnover intention: international prospective cohort study of novice healthcare professionals

AIMS OF THE STUDY: (1) To assess the associations of care-related regrets with job satisfaction and turnover intention; and (2) to examine whether these associations are partially mediated by coping strategies.METHODS: Data came from ICARUS, a …

Ultrafast electron-lattice thermalization in copper and other noble metal nanoparticles

Using time-resolved ultrafast pump-probe spectroscopy we investigated the electron-lattice energy transfer in small copper nanospheres with diameters ranging from 3.2 to 23 nm, either embedded in a glass or dispersed in a solvent. Electron-lattice …

Comparative effectiveness of subcutaneous tocilizumab versus intravenous tocilizumab in a pan-European collaboration of registries

Objective To compare the real-word effectiveness of subcutaneous tocilizumab (TCZ-SC) and intravenous tocilizumab (TCZ-IV) in rheumatoid arthritis (RA).Methods Patients with RA with TCZ from eight European registries were included. Drug retention was …

Free space laser telecommunication through fog

Atmospheric clearness is a key issue for free space optical communications (FSO). We present an active method to achieve FSO through clouds and fog, using ultrashort high-intensity laser filaments. The laser filaments opto-mechanically expel the …