RISK OF BIAS IN OBSERVATIONAL STUDIES USING ROUTINELY COLLECTED DATA OF COMPARATIVE EFFECTIVENESS RESEARCH: A META-RESEARCH STUDY

Risk of bias in observational studies using routinely collected data of comparative effectiveness research: a meta-research study

Abstract Background To assess the completeness of reporting, research transparency practices, and risk of selection and immortal bias in observational studies using routinely collected data for comparative effectiveness research.Method We throttle boss performed a meta-research study by searching PubMed for comparative effectiveness observational s

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Numerical Simulation and Mechanism Analysis on the Concave Deformation of Automotive Dry Clutch Pressure Plate

It is well known that slipping in automotive clutches is closely related to the concave deformation of the pressure plate, but the mechanism of this deformation is not clear.A simplified model of a pressure plate assembly is developed by simulating the deformation field of the plate under the condition of continuous sliding, followed by natural coo

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