Performance in the Fundamentals of Laparoscopic Surgery: Does it reflect global rating scales in the Objective Structured Assessment of Technical Skills in porcine laparoscopic surgery?

Objective:To correlate the utility of the Fundamentals of Laparoscopic Surgery(FLS)manual skills program with the Objective Structured Assessment of Technical Skills(OSATS)global rating scale in evaluating operative performance.Methods:The Asian Urological Surgery Training and Educational Group(AUSTEG)Laparoscopic Upper Tract Surgery Course implemented and validated the FLS program for its usage in laparoscopic surgical training.Delegates’basic laparoscopic skills were assessed using three different training models(peg transfer,precision cutting,and intra-corporeal suturing).They also performed live porcine laparoscopic surgery at the same workshop.Live surgery skills were assessed by blinded faculty using the OSATS rating scale.Results:From March 2016 to March 2019,a total of 81 certified urologists participated in the course,with a median of 5 years of post-residency experience.Although differences in task time did not reach statistical significance,those with more surgical experience were visibly faster at completing the peg transfer and intra-corporeal suturing FLS tasks.However,they took longer to complete the precision cutting task than participants with less experience.Overall OSATS scores correlated weakly with all three FLS tasks(peg transfer time:r=0.331,r^(2)=0.110;precision cutting time:r=0.240,r^(2)=0.058;suturing with intracorporeal knot time:r=0.451,r^(2)=0.203).Conclusion:FLS task parameters did not correlate strongly with OSATS globing rating scale performance.Although FLS task models demonstrated strong validity,it is important to assimilate the inconsistencies when benchmarking technical proficiency against real-life operative competence,as evaluated by FLS and OSATS,respectively.

The Study of Technical Dimension-Color-Phase Structure

In this paper, we firstly contrast Chinese mode of establishment and construction of technical dimension-color structure. achievements with those of foreign, and then study a phase structure from a complete new height of dimension-color structure.

Mechanism of Structural Transformation of China＇s Technology Export

Extending Long＇s （2001） two-sector model into a three-sector model, this paper constructs a new framework for analysing the evolution mechanism of the structure of technology exports. The authors also have applied an adjusted Hausman model to measure the structure of exported technology at China＇s provincial level regions. Upon this foundation, approaching the subject from its domestic and international impact factors, this paper empirically tests the motives driving the structural transformation of China＇s technology export. The conclusions are： （1） the structure of China＇s technology export has improved significantly in recent years, but not as highly as measured by Rodrik （2006） et al. （2） The dynamic mechanism of the structure of China＇s technology export differs from that of the other developing countries. At national and regional levels, the mounting physical capital stock is the fundamental driving force, but with obvious decreasing marginal utility. （3） Excessive unskilled labor in the capital production sector in the central and western regions, and excessively low export prices in the eastern regions have caused negative effects of the skilled labor in the western region and unskilled labor in the eastern region on local structure of technology export.

The research of traffic density extraction method under vehicular ad hoc network environment

Purpose–Traffic density is one of the most important parameters to consider in the traffic operationfield.Owing to limited data sources,traditional methods cannot extract traffic density directly.In the vehicular ad hoc network(VANET)environment,the vehicle-to-vehicle(V2V)and vehicle-to-infrastructure(V2I)interaction technologies create better conditions for collecting the whole time-space and refined traffic data,which provides a new approach to solving this problem.Design/methodology/approach–On that basis,a real-time traffic density extraction method has been proposed,including lane density,segment density and network density.Meanwhile,using SUMO and OMNet11 as traffic simulator and network simulator,respectively,the Veins framework as middleware and the two-way coupling VANET simulation platform was constructed.Findings–Based on the simulation platform,a simulated intersection in Shanghai was developed to investigate the adaptability of the model.Originality/value–Most research studies use separate simulation methods,importing trace data obtained by using from the simulation software to the communication simulation software.In this paper,the tight coupling simulation method is applied.Using real-time data and history data,the research focuses on the establishment and validation of the traffic density extraction model.