In this paper, an optimal sliding mode control method for trajectory tracking of discrete-time systems based on linear quadratic regulator is proposed 122 to improve the trajectory tracking control accuracy and robustness of upper limb rehabilitation robot under the condition of highly nonlinearities, external disturbances, and unmodeled dynamics.F
Introduction: Currently, the world is facing one of the most serious pandemics in history, the COVID-19.Objectives: To identify the main harmful behaviors among the Cuban population against the measures adopted to avoid COVID-19 contagion from December to May 2020.Material and Methods: An ordered systematic review was performed through searches for
PLS-SEM is frequently used in applied studies as an excellent tool for examining causal-predictive associations of models for theory development and testing.Missing data are a common problem in empirical analysis, and PLS-SEM is no exception.A comprehensive review of the PLS-SEM literature reveals a high preference 122 for the listwise deletion and
BACKGROUND: Fushi tarazu factor 1 (FTZ-F1) encodes an orphan nuclear receptor belonging to the nuclear receptor family 5A (NR5A) which includes adrenal 4-binding protein or steroidogenic factor-1 (Ad4BP/SF-1) and liver receptor homologue 1 (LRH-1) and plays a pivotal role in the regulation of aromatases.METHODOLOGY/PRINCIPAL FINDINGS: Present study