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Objective To study the impact of comprehensive teaching mode and trainer experience on teaching effect of surgical basic technique training. Methods The present study adopted 2×2 factorial design. Seventy surgical interns were randomly assigned to the control group adapting lecture-based learning and the experimental group was trained with the comprehensive teaching mode integrating lecture-based, problem-based and case-based learning. Each study group was further randomly divided into two subgroups with either resident or attending surgeon as trainers. Results The comprehensive teaching mode was superior to the control group in terms of quantitative subjectobject assessment and operation time consumption, especially for “willingness to pursue a career in surgery” “clinical reasoning” and “direction of future development”. Furthermore, except for “clinical reasoning”, the teaching effect of resident didn't show statistically significant difference with attending surgeon. Conclusions The comprehensive teaching mode exhibits better teaching effect as compared with the classoc lecture-based learning. The surgical resident is fully competent to serve as the trainer for surgical basic technique training program.

Objective: To plan and develop a Chongqing chemical accident rescue command system., Methods: Based on the modes of leakage and diffusion of various poisonous gases and chemicals, different modes of injuries produced, and their appropriate rescue and treatments, also taking the following factors such as the condition of storage of chemicals, meteorological and geographic conditions, medical institutions and equipment, and their rescuing capacity into consideration, a plan was drafted to establish the rescue system. Real-time simulation technology, data analysis, evaluation technology and database technology were employed in the planning. Using Visual Studio 6.0 as the software development platform, this project aimed to design the software of an emergency command system for chemical accidents in Chongqing which could be operated with the Windows 2000/XP operating system., Results: This system provided a dynamic scope of the endangered area, casualty number estimates, and recommendation of measures and a rescue plan for various chemical accidents. Furthermore, the system helped retrieve comprehensive information regarding the physical and chemical characteristics of more than 4 200 dangerous poisonous chemicals and their appropriate treatment modalities., Conclusion: This system is easy to operate with a friendly interface, functions rapidly and can provide real-time analysis with comparatively precise results. This system could satisfy the requirements of executing the command and the rescue of a chemical accident with good prospects of application.