The establishment of new teaching model in the open teaching environment has promised dramatic changes in the way we teach and learn in medical English.Through the combination of the character of medical English teaching and our experience of On-line Medical English Teaching,we introduce a cooperative model in Web-based course design for enhancing traditional face-to-face classroom teaching for further improvement in the process of reform.

Transitional relationship between input and output in the writing course was researched from multidimensional perspectives under the web-based writing course example of “ write to learn” and guided by input and output hypothesis.The improving methods for teaching of college English writing course were discussed in order to provide references.

Objective To investigate the diagnostic value and feasibility of PTC diagnosis on pancreaticobiliary maljunction (IBM), and to summarize the PTC radiological characteristics of PBM. Methods Clinical findings and cholangiopancreatographic results were analyzed retrospectively for a group of consecutive 363 patients with obstructive jaundice receiving the PTCD therapy. Meanwhile the standard selected for cases and diagnostic conditions were established. The length and diameter of pancreaticobiliary common duct, the diameter of pancreatic duct and common bile duct and the confluence angle were measured respectively. The t test and rank sum test were used to analyze the result statistically. Results Thirty-eight cases were radiologicaUy diagnosed as PBM owing to the reference standard and the detection rate was 10.5% (38/363). The length of common duct was (12.6±7.9)mm. The significant difference existed between it and normal value (6ram) (t=5.15 , P <0.05). The site of duodenal papilla had influence on the length of common duct. The diameter of common bile duct, pancreatic duct and common duct near the confluence are (3.7±1.9 ) mm, (2.4±1.3) mm, (3.3±1.4 ) mm, respectively. There was no statistical difference between them and the normal value (t=1.79,2.85,5.72, P>0.05). Fifteen patients' duodenal papilla located the middle of descending duodenum. The length of common duct was (10.6±9.1)mm , the confluence angle was 51.1°±28.0°, the number of the duodenal papilla locating in the inferior 1/3 of descending duodenum, juncture , horizontal part of duodenum was 10, 8,5, respectively. The length of common duet were (9.9±3.7), ( 18.6±8.9), ( 13.9±3.5 ) mm, respectively. The confluence angle were 54.0°±18.6°、48.7°±12.6°、74.4°±18.5°, respectively . The site of duodenal papilla had significant influence on the length of common duct(X2=14.51, P <0.05). Conclusion PTC is a safe, feasible, method to diagnose PBM, and it demonstrates the characteristic findings of PBM.

Objective To design the mushroom covered stent and study the primary application for gastroesophageal anastomosis thoracic cavity fistula.Methods On the base of the peculiar anatomic structure and the pathological changes of gastroesophageal anastomosis thoracic cavity fistula, we designed the mushroom covered stent. Under the fluoroscopic guidance, 6 mushroom covered stents were placed in 5 patients.Results The fistula oral of the patients with post operative perforation were closed with the mushroom covered stent, the food intake ability and nutriture of all patients were improved.Conclusions The structure of the mushroom covered stents is reasonable, which is effective and safe for treating the patient with gastroesophageal anastomosis thoracic cavity fistula.

Objective To evaluate the feasibility and safety of percutaneous transluminal angioplasty(PTA)using ? 30 mm balloon catheter to dilate the obstructive lesion of inferior vena cava(IVC)in Budd-Chiari syndrome(BCS). Methods From January 2002 to July 2006,146 consecutive patients with BCS(94 men,52 women)underwent color Doppler sonography including enhanced multislice CT(n = 47),and were confirmed by IVC angiography. All patients but 1 microsomia case were treated by PTA using ? 30 mm balloon catheter for dilation. IVC angiography were immediately performed to show patency of IVC and occurrence of any rupture or not after PTA. Follow-up color Doppler sonography was taken to evaluate the IVC patency and the PTA-related complication about 1 week after PTA. Results The mean transversial and longitudinal diameters of IVC at the junction level of right atrium and IVC were(25.09 ? 6.09) mm and(17.57 ? 3.93) mmrespectively in 46 cases with 3 D multi-slice CT preoperatively(1 case without measurement was due to the closest site with right atrium). There were no IVC rupture during the procedure. Conclusions Treatment of BCS by PTA using ? 30 mm big balloon catheter is feasible and safe.

This paper explores into the differences of successful and unsuccessful medical students in their use of English writing strategies.The result of T-test shows that students differ a lot in their use of four writing strategies especially in macro-management strategy and func-tion-focused strategy.Therefore,teachers should pay more attention to the cultivation of au-tonomous use of writing strategy in daily writing courses.

We designed an elective course of its professional characteristic——online reading for undergraduates majoring in medicine,in order to probe the mode of reform in education of English.

Objective To analyse the clinical manifestation of thoracostomach-airway fistula in order to improve the recognition.Methods The clinical information in 20 cases with thoracostomach-airway fistulas was analyzed retrospectively.Results The main clinical manifestations were choke after drinking or eating,inhalation pneumonia,fever,becoming thin ness,aridity,turbulence of water and electrolyte,et al.The stomach radiography showed thoracostomach-tracheal fistulas in six cases,thoracostomach-carina fistula in fwo cases,thoracostomach-left main bronchial fistulas in 10 cases and thoracostomach-right main bronchial fistula in two cases,vespectively.Conclusions Thoracostomach-airway fistula could be diagnosed according to the specific clinical significances and stomach radiography.

Objective To understand the effect of the organic extracts of tap water deeply treated with O3-BAC on DNA damage. Methods During June to July 2005, water samples were collected from 6 sites in waterworks A treated with O3-BAC, the raw water, the pre-chlorination water, the filtration water, the post-ozonation water, the BAC water and the tap water respectively and 4 sites in waterworks B treated by general treatment, the raw water, the pre-chlorination water, the filtration water, and the tap water respectively. The test was carried out on extracts of water sample from waterworks A with dosage(7.00, 3.00, 1.50, 1.00, 0.75, 0.38 L/plate)and waterworks B with dosage(7.00, 3.00, 1.00 L/plate)using S.typhimurium strains TA98 and TA100. Cytokinesis-blocked micronucleus (CBMN) test, Comet assay were used on extracts of water sample from waterworks A with dosage(3.00, 1.50, 0.75, 0.38 L/plate). Human embryo lung fibroblast (KMB17 strain) p53 ELISA were used with dosage(3.00, 1.00, 0.3 L/plate). Results Ames test showed that in the waterworks A, at the dose of 7.0 L, the revertants of the raw water, pre-chlorination water, the filtration water on TA98-S9 and 7.0 L, 3.0 L/plate, the revertants of the raw water, pre-ozonation water, filtration water on TA98+S9 were twice more than that of solvent control; in waterworks B, at the dose of 7.0 L/plate, the revertants of the raw water, pre-chlorination water, filtration water on TA98-S9 and 7.0 L, 3.0 L/plate the revertants of the tap water on TA98-S9, and 7.0 L/plate pre-chlorination water on TA98+S9 were twice more than that of solvent control. Cytokinesis-blocked micronucleus (CBMN) test showed that in waterworks A, at the dose of 3.0 L/plate, the micronucleus rates of the raw water, filtration water were significant high than that of solvent control(P

Objective To study the changes of the contents of serum HDL subclasses in type 2 diabetic patients. Methods The contents of serum HDL subclasses in healthy controls (n=38) and patients (n=38) were determined by two-dimensional gel electrophoresis associated with immunodetection method. Results The contents of pre-?1, HDL(P