Objective The paper focused on teaching status of evening college among different ma-jors, and tried to provide data support and suggestion for teaching reform of evening college in medical university. Method Using methods of questionnaires and interviews, the investigators analyzed five aspects of students in Peking University Health Science Center, which were the influences on study from family and work, and the evaluation on teaching, etc. The investigators entered data with Epidata 3.1 software and de-scribed it with SPSS 20.0 statistical software, with which they also did chi-square and nonparametric rank sum test. Results 38.2% (63/165) of clinical medicine students, 45.8% (27/59) of laboratory medical sci-ence students and 43.0%(71/165) of nursing students regarded hard work and limited energy as their major difficulty from jobs. Limited time for study was treated as the biggest problem for students of clinical medicine (58.2%, 96/165), laboratory medical science (46.5%, 27/58) and nursing (66.5%, 105/158). 41.9%(70/167) of clinical medicine students tended to receive traditional face-to-face teaching; 39.0%(23/59) of laboratory medical science students preferred partial face-to-face teaching with partial network teaching; while 37.2% (68/183) of nursing students tended to partial face-to-face teaching with partial self-study. 58.4%(97/166) of clinical medicine students, 55.9%(33/59) of laboratory medical science students and 64 . 8% ( 118/182 ) of nursing students preferred examination of both memorization and application . Conclusion Results showed that students in different majors presented similar opinions on teaching status, but also with a few dif-ferences. There were the same characteristics between students of clinical medicine and nursing, both with high satisfaction. While students in the laboratory medical science showed the special characteristics, with low satisfaction.

Objective The article was to evaluate the efficacy of intra-articular tranexamic acid injection in reduction of blood loss and blood transfusion in total hip arthroplasty (THA). Methods 60 patients hospitalized from July 2011 to July 2013 were selected as research subjects , among whom 38 males and 22 females with 2-10 years'( an average of 6 years) duration of femoral head aseptic necrosis were treated with initial unilateral THA using the posterolateral approach .The patients were randomly divided into 2 groups:experimental group were treated with 100 mL intra-articular tranexamic acid injection after intraoperative suture of incision , control group received no topical tranexamic acid .Intraoperative blood loss , postoperative visible blood loss , blood transfusion , blood transfusion number , postoperative hemoglobin were taken as evaluation indexes to make comparison between the two groups . Results No significant differences were found in intraoperative blood loss between the two groups ( [ 200 ±60 ] mL vs [ 200 ±53 ] mL, P >0.05), but in comparison to control group, postoperation visible blood loss([140 ±45]mL vs [362 ±53]mL, P<0.05), blood transfusion([400 ±25]mL vs [750 ±50]mL, P<0.05) and blood transfusion number in group A were significantly decreased (P<0.05), and in terms of postoperative hemoglobin value ([95 ±15]g/L vs [81 ±12]g/L, P<0.05), experimental group was signifi-cantly higher than control group(P<0.05). Conclusion Topical tranexamic acid in total hip arthroplasty can significantly lower blood loss and blood transfusion in patients .