AIM and METHODS: A study of radioimmunoimaging was carried out on Kcnming mice - uterine cervical cancer (U14) using 99mTc labeled monoclonal Au14-1 with a modified Schwartaz method. RESULTS: The bio - distribution showed that radioactivity accumulated in tumor tissue at 12h after 99mTc - Au14- 1 injection in tail vein. The uptake by tumor was 4. 12 % ID/g at 2h and 8. 79 % ID/g at 24h respectively. The tumor/non - tumor (T/NT) radiocativity ratios for organs except kidneys were ranged from 2.02 to 6.71 at 24h post - injection. The image of tumor showed at 12h and clearer at 24h after injection. CONCLUSION: The quality of tumor image was relevant to the T/NT radioactivity ratios. It was demonstrated that 99mTc- Au14-1 has a good capability of localization for tumor.

Objective To investigate the status of leader-member exchange quality , organizational identification and job performance of nurses , to discuss the relationship among them , and to clarify the internal mechanism.Methods Three hundred sixty-nine clinical nurses were surveyed by leader-member exchange scale, organizational identity scales and job performance scale according to the cross-sectional sampling methods.Results Three hundred sixty-nine questionnaires were issued and 267 questionnaires were responsive with an effective response rate of 72.36%.The average score of nurses ’ perception of leader-member exchange was (5.22 ±1.09), and the average score of nurses ’ perception of organizational identification was (5.60 ± 1.09), and the average score of nurses ’ perception of job performance was (5.45 ±1.11), and the average scores of three variables were above average .There were significant positive correlation the nurses ’ perception of leader-member exchange quality and organizational identification (r=0.56, P<0.01), and job performance (r=0.53, P<0.01).There were also significant positive correlation the nurses ’ perception of organizational identification and job performance (r=0.63, P<0.01).The nurses’ perception of leader-member exchange quality had positive influences onorganizational identification (β=0.53, P<0.01) and job performance (β=0.26, P<0.01).The organizational identification played an intermediary role in the relationship between the leader-member exchange quality and the job performance (β=0.254, P <0.01).Conclusions Nursing administrators should strengthen the communication with nurses , form a good psychological and emotional bond , and further to promote the organizational identification and job performance of nurses .

OBJECTIVE To establish H PLC fingerprint of Rheum palmatum before and after steaming with wine ，and to determine the contents of 3 differential components. METHODS HPLC method was used to establish the fingerprints of 15 batches of R. palmatum （before wine-steaming ）and prepared rhubarb （after wine-steaming ）and the similarity evaluation was conducted. The chemical pattern recognition analysis was carried out by principal component analysis ，cluster analysis ，partial least squares- discriminant analysis and orthogonal partial least squares-discriminant analysis. The contents of gallic acid ，resveratrol-4′-O- glucoside and resveratrol- 4′-O-（6″-galloyl）-glucoside in 30 batches of samples were determined. RESULTS In the fingerprint study，48 common peaks were demarcated for R. palmatum and 47 for prepared rhubarb as well as 17 common peaks were identified by reference substance. Cluster analysis and principal component analysis showed that R. palmatum derived from Qinghai before and after steaming with wine could be distinguished from those from Sichuan and Gansu. The results of content determination showed that the contents of 3 differential components in R. palmatum derived from Qinghai before and after steaming with wine were higher than those from other two production areas ；the contents of gallic acid in prepared rhubarb derived from those production areas were higher than R. palmatum ；the contents of resveratrol- 4′-O-glucoside and resveratrol- 4′-O- （6″-galloyl）-glucoside in R. palmatum derived from those production areas were higher than prepared rhubarb. CONCLUSIONS Fingerprint and content determination method established in this study can quickly ，scientifically and accurately evaluate the quality of R. palmatum from different producing areas before and after wine steaming ，which provide a basis for the processing specification and quality control of R. palmatum .