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.

BACKGROUND:Hematopoietic stem cel transplantation is a promising treatment for a variety of malignant and nonmalignant disorders. But noninfectious pulmonary complications folowing hematopoietic stem cel transplantation are a major cause of morbidity and mortality in these patients. And the diagnosis and treatment are difficult. OBJECTIVE: To review the noninfectious pulmonary complications after hematopoietic stem cel transplantation in terms of onset time, risk factors, clinical manifestations, characteristics of the high-resolution CT, histopathological measurement, related genes and treatment options. METHODS: A computer-based search of VIP, PubMed and Sciencedirect databases was performed for articles related to noninfectious pulmonary compli cations after hematopoietic stem cel transplantation published from January 2005 to October 2014. The key words were “HSCT, pulmonary complications, non-infectious, pirfenidone” in Chinese and English in the title and abstract. Finaly, 31 articles were included in result analysis. RESULTS AND CONCLUSION: The incidence of noninfectious pulmonary complications after hematopoietic stem cel transplantation has become more and more, with atypical clinical manifestations and limited diagnosis and treatments. According to the different clinical onset time, diagnostic criteria, clinical manifestations and the appropriate laboratory tests, clinicians can make early diagnosis and early intervention. Especialy, the usage of high-resolution chest CT and bronchofiberscope for bronchoalveolar lavage as wel as the timely drug administration can improve the survival rate of patients with noninfectious pulmonary complications after hematopoietic stem cel transplantation.

Objective To evaluate the effect of the miracle questions in solution?focused brief therapy on memory tend and emotional stage in a non?clinical situation in college students. Methods A quasi?experimental design was adopted,and two kinds of materials for self?coaching( solution?focused,problem?focused) were devel?oped according to the previous researches. Seventy?two subjects were randomly divided into two groups,receiving the miracle questions in solution?focused brief therapy( The miracle question group,thirty?six subjects) or problem?focused coaching intervention(problem?focused group,thirty?six subjects).Exception memories number and positive and negative emotion level were evaluated between the two groups. Results The subjects receiving the miracle question group write more exception memories (3.67±2.07) than problem?focused group (1.61±1.18) ( t=5.178, P<0.01) . There was no significant difference in the positive and negative emotion level between the two groups(P>0.05) . Conclusion The miracle questions in solution?focused brief therapy can trigger the subjects to exceptional memories .This suggests that in practical application,questions order has impact on the effect of consultation. Be?fore asking exception question,miracle questions should be asked in the use of solution?focused intervention.

Objective To analyze the changes of erythrocyte sedimentation rate (ESR) ,C‐reactive protein (CRP) and serum am‐yloid A (SAA) before and after total hip arthroplasty(THA) .Methods A total of 124 cases of unilateral THA in our hospital from April 2012 to April 2015 were selected as the research subjects .The CRP ,ESR and SAA levels were detected before operation and on postoperative 1 ,3 ,5 ,7 ,14 d ,and 1 ,3 months .The differences of above indexes between the patients with postoperative deep venous thrombosis (DVT ) obstruction and the patients with normal recovery were retrospectively analyzed .Results CRP was sharply increased after operation and reached the peak value on 3 d ,then rapidly faded away ,and recovered to the preoperative level at postoperative 1 month;ESR was continuously elevated until reaching the peak value ,then slowly declined ,and recovered to the normal level at postoperative 3 months;SAA was sharply elevated after operation ,reached the peak value on 3 d ,then slowly de‐clined and could recovered to the normal level at postoperative 3 months .The CRP ,ESR and SAA levels in the patients with post‐operative complications occurrence were significantly higher than those in the patients with postoperative normal recover at the same time ,moreover which could not recover to the preoperative levels .Conclusion Dynamically monitoring CRP ,ERS and SAA after THA could conduce to early discover postoperative lower limbs DVT blockage complication .

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.

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.

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.