Implementing PBL teaching in the political theory course,making sure the scientific nature of the problem setting are the fundamental guarantees of the right track of political theory education.There are several specific approaches to implement the PBL teaching effectively:leading up to the problem when teacheing in the large class; completing the analysis and research by dividing groups; carrying out class discussions by teams; submitting discussion experiences by each student.Practice has proved that,PBL teaching is better than LBL one.

Problems in pathology teaching requires the introduction of PBL pedagogy.Teaching experiments show that PBL teaching has a positive impact on the improvement of clinical medical students'ability and quality and can be conditionally applied and promoted. And at the same time, it is a challenge to traditional teaching mode of pathology and therefore the reform of medical education needs to be deepened.

Objective To simulate and investigate th e electromagnetic field distribution of the insert applicator used in microwave hy perthermia for treating bone tumors. Methods Bone t umor model with layered cylindrical shape was made. The applicator was made from a coaxial cable that peeled off the out copper at the end, which were inserted into the cylindrical bone with different depths. The three dimensions finite ele ment method (FEM) was used to calculate the various parameters of the simulated electromagnetic field. Results The electromagnetic energy could be well transmitted into the tissues when the section of the out co pper cutting was embedded in the tissues. The electromagnetic energy to the tiss ue was enhanced when the tip of the applicator got close to but not penetrated t he tissue. Conclusion The intensity of irradiation t o the target tissue was determined by the dimension and depth of insertion of th e applicator. This is very important for the selection of the type and insertion depth of the applicator when using microwave hyperthermia for treating bone tum or in clinical practice.

Objective To study the effective constituents from the stem bark of Erythrina variegata.Methods The compounds Ⅰ-Ⅸ were isolated by a combination of silica gel,Sephadex LH-20,and ODS chromatographies and their structures were identified by spectral methods.Results Nine known compounds were isolated from the stem bark of E.variegata.Their structures were identified by means of spectroscopic analysis as: 5,4′-dihydroxy-8-(3,3-dimethylally)-2″,2″-dimethylpyrano [5,6∶6,7] isoflavone(Ⅰ),stigmasterol(Ⅱ), erythrinasinate B(Ⅲ),3-hydroxy-2′,2′-dimethylpyrano [5,6∶9,10] pterocarpan(Ⅳ),5,7-dihydroxy-8-(3,3-dimethylally)-dihydroflavanone (Ⅴ),5,4′-dihydroxy-2″,2″-dimethylpyrano [5,6∶6,7] isoflavone(Ⅵ),5,7,4′-trihydroxy-6,8-di(3,3-dimethylally) isoflavone(Ⅶ),5,2′,4′-trihydroxy-8-(3,3-dimethylally)-2″,2″-dimethylpyrano [5,6∶6,7] isoflavone(Ⅷ),5,4′-dihydroxy-6-(3,3-dimethylally)-2″,2″-dimethylpyrano [5,6∶7,8] isoflavone(Ⅸ).Conclusion Compounds Ⅰ,Ⅲ,Ⅳ,Ⅶ,and Ⅸ are isolated from this plant for the first time and compound Ⅴ is newly isolated from the plant of Erythrina Linn.

Proteomic research first came to the fore with the introduction of two-dimensional gel electrophoresis and proteomics has been increasingly applied to cancer research with the wide-spread introduction of mass spectrometry and protein chip.As important research tools,oncoproteomics that targets the entire cancer-specific protein network has already been applied in cancer research.In this article the development of the oncoproteomics and its applying in cancer is reviewed.

We treated two cases of flaccidity syndrome,one who was suffering obstinate myasthenia gravis was treated by modified Mahuang Fuzi Xixin decoction which is based on warming Yang and replenishing qi,dredging the meridian passage.The other who was suffering lipid storage myopathy was treated by modified Buzhong Yiqi decoction which is based on strengthening spleen and improving digest,ascending the clear and descending the turbid,supplementing qi and nourishing blood, promoting blood circulation to remove meridian obstruction.Both got the obvious improvement.

The "all-free health care" system is being implemented in Shenmu County in Shaanxi Province,whose ethical orientation is during the transitional process from "basic medical insurance" to "meeting residents′ actual healthcare demand".The "all-free health care" system safeguards human health rights,embodies the principle of giving priority to social benefits,and is in accordance with the principle of effectiveness.However,due to the lack of scientific management,the capital flows violate the principle of prevention in the system.

Radical trachelectomy (RT) is known as a developing sign of the surgical treatment of cervical cancer in the 21st century.RT brings hope for the patients with early cervical cancer who eager to retain their fertilities.The extent of surgery include RT and pelvic lymphadenectomy.The major methods of radical trachelectomy include abdominal (RAT) and vaginal (RVT) approaches.The efficacy and feasibility of RT is similar with standard treatment,which has great application value in clinical.

Objective To observe endothelial and fibrinolytic functions of clinical AF patients and effects of cilazapril on it and to investigate the mechanism and treatments of thrombogenesis in AF.Methods 63 AF patients were randomly divided into control group(n=30)and cilazapril group(n=33).All patients received general treatment according symptoms.In addition,the patients in cilazapril group received cilazapril(2.5mg/d,2 weeks).Plasma Ang Ⅱ, vWF,t-PA and PAI-1 level were measured before and after 2 weeks.There were 36 patients with sinus rhythm (SH)in non-AF control group.Results AF patients had higher plasma Angll level than SH patients that indicated RAS activated[(107.7?22.0)pg/mL vs(70.2?15.8)pg/mL,P

Objective To observe endothelial and fibfinolytic functions of clinical AF patients and effects of cilazapril on it and to investigate the mechanism and treatments of thrombogenesis in AF.Methods 63 AF patients were randomly di- vided into control group (n=30) and cilazapril group (n=33).All patients received general treatment according symptoms.In addition,the patients in cilazapril group received cilazapril (2.5mg/d,2 weeks).Plasma Ang Ⅱ, vWF,t-PA and PAI-1 level were measured before and after 2 weeks.There were 36 patients with sinus rhythm (SH) in non-AF control group.Results AF patients had higher plasma AnglI level than SH patients that indicated RAS acti- vated[(107.7?22.0) ng/L vs (70.2?15.8) ng/L,P