Abstract Background Latest evidence suggests that periodontitis is prevalent among patients with chronic obstructive pulmonary disease (COPD), while recent studies have also reported a potential benefit of periodontal treatment on several COPD outcomes.This systematic review aims to determine the impact of periodontal treatment on exacerbation rate
To avoid catenary collision in a multi-rope friction mine hoist, in this study, the relevant hoisting parameters based Lacquer Paint on the multi-source coupled vibration characteristics of hoisting catenaries are optimized.First, the multi-source coupled vibration characteristics of hoisting catenaries were investigated based on an established the
Understanding the impact of tectonics on surface processes and the resultant stratigraphic evolution in multi-phase rifts is challenging, as patterns of erosion and deposition related to older phases of extension are overprinted by the subsequent extensional phases.In this study, we use a one-way coupled numerical modelling approach between a tecto