This instrument is controlled by computer.It can follow up and correct errors which may take place both within and without the X-ray generation system.It can detect the real amount of attenuation of X-ray in human chest and bring X-ray on the desired working voltage (kV)、current (mA)and the exposure time,(s) of X-ray generation system under stepless control.This instrument is rather an intelligential system of an automatic radiograph,and has ability to take higher quality film for chest within conventional kV range.

Abscess ; surgery ; Foreign Bodies ; surgery ; Foreign-Body Migration ; Humans ; Thyroid Gland

Objective:To determine the cost of medical insurance macroeconomic factors,and propose countermeasures for macro-control health insurance costs.Methods:Principal component analysis was applied to screen dominant macroeconomic factors that influenced medical insurance costs of Shanghai.Results:From the macro perspective,the economy and technology were the main factors affecting medical insurance costs.Conclusion:It needed to increase government investment in public health finance,develop cost-declined medical technology and strengthen the construction of medical and health information,as well as to strengthen government oversight.

According to the present situation of our physics laboratories for teaching evaluation,considering the evaluation as a opportunity,the article probes into how to promote and strengthen the construction of physics laboratories and fully promote the reform and development of physics work.

To carry out the innovation education in physics experiment,the teaching personnel should firstly update their concept involved,enhance the consciousness of innovation and optimize the teaching goals.Then they should permeate all the above-mentioned into the process of experiment,reform the model and methods and explore the new content from various aspects to cultivate the students'sense,spirit and capability for creativities.Besides,the laboratory should be available for the students' access and liberty to operation.

This paper analyzes current problems in teaching thermology in medical physics.It introduces some ideas for reforming the thermology teaching:reforming traditional structure and system of its contents and improving teaching methods.

It is found that Virtual experiment(VE)can not only improve the experimental condition,enrich the experimental content,but also help to foster the innovation ability of the students. To bring the teaching contribution of VE into full play,it is important to note that VE should be combined with actual experiment and be introduced step by step. Meanwhile,the teach-ing staff should also acquire more learning and further technical skills.

Objective:To establish the quality control of Chuanqi Zhennaoning capsules.Methods:A TLC method was used to identify Panax Notoginseng and Radix Angelica Pubescentis;an HPLC method was used to determine tetrahydropalmatine in Rhizoma Corydalis (processed with vinegar).Results:The specific spots of Panax Notoginseng and Radix Angelica Pubescentis were presented clearly by TLC without interference from the negative control;the linear range of tetrahydropalmatine was 1.95-24.40 μg·ml-1 (r=0.999 9);the average recovery was 99.2%(RSD=1.51%,n=6).Conclusion:The method is simple,feasible and reproducible,which can be used for the quality control of Chuanqi Zhennaoning capsules.

Objective:To explore the depressive symptom of nurses and its relationship with trait coping style,role perceive and personal control.Methods:425 nurses in the 2nd Hangzhou general hospital completed a battery of questionnaires consisted of part items of SCL-90,Trait Coping Style Questionnaire(TCSQ) and Role Perceive and Personal Control Scale.Results:There are significant correlation among the SCL-90 score,the coping styles,and the control feeling and role conflict.Based on depression factor ,factors of negative coping style,control feeling,role conflict and positive coping style were included in stepwise regression equation.Conclusion:Depressive symptom of nurses was related to trait coping style,role perceive and personal control.