Abstract Background Nursing home performance measurement systems are practically ubiquitous.The vast majority of these systems aspire to rank order all nursing homes based on quantitative measures of quality.However, the ability of such systems to identify homes differing in quality is hampered by the multidimensional nature of nursing homes and th
Social network model based on the transmission of information
The topology modeling of the social network is propitious to understanding the transmission process of information and the topology characteristic of the real friendship network.Considering the directed characteristic of information spread,the dynamic process of information dissemination was simulated,and moreover,the weighted directed topology mod
Feasibility of ultrasound-guided posterior approach for interscalene catheter placement during arthroscopic shoulder surgery
BackgroundContinuous interscalene block has been known to improve postoperative analgesia after arthroscopic shoulder surgery.This was a prospective study investigating the ultrasound-guided posterior approach for placement of an interscalene catheter, clinical efficacy and complications after placement of the catheter.MethodsForty-two patients und