Medical English is an important direction of college academic English teaching.This paper taking medical English as an example attempts to explore a new form of MOOC (massive open online courses) based on WeChat platform.With the help of the developer mode provided by the WeChat platform,various interaction and customization are achieved by programming.This kind of course is called WeChat-MOOC.It is introduced into the traditional class combining with the various students' activities,which makes the online and offline,mixed-class mode come true.

The present study summarized the results of QTc. in 54 subjects, 8 of which were patients with coronary heart disease and 46 normal.The exercise tests were carried out on an ergometric bicycle with a submaximal exercise andQT interval was corrected for heart rate according to Bazett's formula (QTc=QT/R-R-). All patients were subjects to resting ECG before the test, during excerxise, and immediately fol owing the end of the exercise. Electrode jelly contact disk electrodes were used for the CMS. Results showed that coronary heart disease patients all had a prolongation of the QTc following exercise with variations of 0.06+0.02s The QTc of all normal subjects, except one, Showed a shortening or no ohange.Our study thus reveaded that the finding of QTc variations with exercise all of value for the diagnosis of coronary heart disease.

Objective To explore the influence factors of TCM syndrome characteristics distribution of alcoholic hepatic fibrosis. Methods The study overall collected and discussed the influence factors of TCM syndrome characteristics distribution of alcoholic hepatic fibrosis patients by adopting the principles and methods of clinical epidemiology based on the previous research of TCM syndrome characteristics. Results The important influence factors of TCM syndrome characteristics distribution of alcoholic hepatic fibrosis were total alcohol intakes and the total alcohol intakes under family alcoholism history condition. Conclusion The degree of viscera damage by alcohol is closely related to the distribution of TCM syndrome characteristics of alcoholic hepatic fibrosis and its pathogenesis evolution. The genetic constitution is one of the important influence factors of TCM syndrome characteristics distribution of alcoholic hepatic fibrosis.

Objective To investigate the correlation between the distribution of the charactcristics of TCM syndrome of alcoholic liver fibrosis and alcoholic consumption. Methods Our group studied clinical cases in multi-center prospective method. In virtue of Factor Analysis, we explored the characteristics of TCM syndrome of alcoholic liver fibrosis, and the forming characteristics of alcoholic liver fibrosis in inland. Rerults Among the subjects, the characteristics of TCM syndrome of alcoholic liver fibrosis mainly manifested excess syndrome with the common manifestations of deficiency and excess. The visceral position was mainly in liver and spleen, related to gallbladder and stomach. The result suggested that stagnation of Qi stagnation, blood stasis, damp heat, with deficiency of genuine Qi were the interpretation of the causes of alcoholic liver fibrosis. The total alcoholic consumption was one of the important factors which effected on the distribution of thecharacteristics of TCM syndrome of alcoholic liver fibrosis. Total bilirubin had mostly striking effect on the distribution of the characteristics of TCM syndrome. Conclusions The total alcoholic consumption was one of the important factors which effected on the distribution of the characteristics of TCM syndrome of alcoholic liver fibrosis.

Objective To analyses the CT characteristics of primary malignant ovarian tumors and metastatic ovarian carcinoma and its diagnosis and differential diagnosis.Methods CT findings in 31 patients with pathologically-proved malignant ovarian tumors,encountered during 1999-04~2003-11 were retrospectively analyzed.The observation of the lesion was focused on the following aspects:location,internal density,septa,wall,intra-cystic and extra-cystic vegetation,the composition of the soft tissue,ascites,peritoneum,mental implantation and metastatic lymphadenopathy.The characteristic of each in both primary malignant ovarian tumor and metastatic ovarian tumor were compared.Results Among the 24 primary malignant ovarian tumors,13 patients had lesions in both sides of ovary,type Ⅱa:n=3,Type Ⅱb:n=11,Type Ⅱc:n=7,Type Ⅲ:n=3.Among the metastatic ovarian carcinomas,Type Ⅱa:n=6,Type Ⅱc:n=1.Conclusion Type Ⅱb and Ⅱc are commonly seen in primary malignant ovarian tumors.Type Ⅱa is always seen in metastatic ovarian carcinoma.The metastatic tumors often happen in the right peritoneum,epiploon,and liver."arborization and silk screen likely"are the characteristic representation of the metastatic ovarian carcinoma.

Objective To compare the safety and efficacy between RevoLix 2 μ m continuous-wave (CW) laser resection of bladder tumor and transurethral resection of bladder tumor (TURBT) in patients with non-muscle-invasive bladder tumor, and to evaluate clinical value of 2 μ m CW laser resection for nonmuscle-invasive bladder tumor. Methods 62 patients with non-muscle-invasive bladder tumor were divided into 2 groups including 2 μ m CW laser resection group (32 cases) and TURBT group (30 cases) according to the random number table.The intravesical instillation of pirarubicin was performed regularly. The operative time,drop in hemoglobin,indwelling catheterization time,and operative complications were analyzed.Results All cases were completed successfully. The mean operative times of 2 μm CW laser resection group and TURBT group were 32.5±10.5 min and 31.3± 9.8 min, respectively, and no statistical difference could be found between both groups (t =0.364,P=0.674).3 cases were found to have obturator nerve reflex in TURBT group,but no obturator nerve reflex was found in 2 μn CW laser resection group.Bladder irrigation time of 2 μm laser resection group was statistically shorter than that of TURBT group [ (6.2±2.6)h vs (23.8±6.5)h,t =8.294,P=0.006]. There was also no significant difference in postoperative catheterization time between both groups [(4.2±1.5)d vs (5.2±1.8)d,t=1.468,P=0.103 ]. Postoperative hospitalization time of the two groups was not shown significant difference [ (5.3± 1.5) d vs (5.8±2.8) d,t =0.627,P =0.531 ].All cases were followed up for 6～18 months,and there were no significant difference in the recurrence rate between both groups (x2=0.481,P =0.562). Conclusion 2 μm CW laser resection is a novel excellent treatment for non-muscle-invasive bladder tumor and has the similar effect as TURBT with the advantage of significantly less blood loss and rapid recovery after surgery.

0.05). The average SV of premature systoles is 35% of sinus beats. Premature systoles less than 5 beats/min may cause and average drop of 5% of cardiac output (CO), While the premature systoles increased to 10-20 beats/min, the CO would be dropped further of 10-19%. there Was a high linear correlation between sr of all premature systoles and the coupling interval premature systoles (p

OBJECTIVE To establish a model for chlorpyrifos(CPF)whole-body dynamic inhalation exposure in SD rats and investigate the injury effects after acute exposure by CPF. METHODS By optimizing the aerosol parameters ,the animal acute dynamic inhalation exposure of CPF was established. Absorption sampling-gas phase detecting technology was used to monitor the concentration of CPF in the whole-body dynamic-inhalation exposure cabin by exploring the relationship between the concentration , particle size of CPF aerosol and the CPF inhalation time in the exposure cabin via a particle size detector. Using Bliss method,specific pathogen free SD male rats were allocated to the environment of CPF exposure at different lethal concentrations and time points. The symptoms and deaths of these SD male rats in different groups were recorded within the following 10 d. Based on the median lethal concentra?tion time(LCt50),the values of plasma cholinesterase(ChE)were checked at different time points after being exposed at different doses. RESULTS The mean concentrations of CPF aerosol at nine time points was 160.6 mg · m-3,the relative standard deviation value was 6.9%;the geometrical mean of aerosol particle size was 1.1 μm,and the geometric standard deviation was 1.8. The results met the technical requirements of Organization for Economic Cooperation and Development regarding acute inhalation exposure. Under these equipment conditions,the LCt50 of CPF acute inhalation of SD male rats was 1654.2 mg · m-3 · h,suggesting that plasma ChE inhibitory rate was higher with the increase in the exposing dose,and that there was a significant difference as compared with the controls(P<0.05). CONCLU?SION The model for whole-body dynamic-inhalation exposure of CPF is applicable to rats,which can serve as an experimental platform and technical support to inhalation vulnerability and the research on prevention and cure of organophosphate industrial products and nerve agents.

Objective To explore the cause and the interventional treatment of restenosis after percutaneous transhepatic biliary stent.Methods 20 patients with biliary restenosis after percutaneous transhepatic biliary stent placement were collected.According to drainage volume from biliary tract and degree of amelioration of jaundice,post-operation hepatic function,blood,urine and stool routines,ultrasound,CT scan and cholangiography were performed to determine the nature and location of biliary restenosis,and then all cases underwent recanalization with intervention method by the exteriorized drainage tube approach.The China-made nickel-titanium alloy stents with diameter of 10 mm and length ranged from 40 mm to 80 mm were used.Results The biliary restenosis occurred in mid-inferior segment of common bile duct in 9 patients, common hepatic duct in 7 patients and hepatic porta in 4 patients. As regarding the causes of restenosis included tumor compression in 9 cases, angulation in upper segment of stent in 3 cases, obstruction in stent by bile, food or clot in 4 cases, cholangitic stenosis in 2 cases and granulation proliferation in 2 cases.The obstruction in all cases was relived by extraction through drainage tube, drug irrigation,dredging by wire, balloon dialtion or stent replacement, so that the total survival rate was beyond 6 months.Conclusion After percutaneous transhepatic biliary stent placement in treating the malignant biliary obstruction,the rate of biliary restenosis is still high,which should be attached importance to.