Objective To investigate the relationship between apparent diffusion coefficient (ADC)value of rectal adenocarcinoma on DWI and its pathological grading.Methods The ADC values of 46 rectal adenocarcinomas were measured and compared with their histopathological grades.Results The 46 rectal adenocarcinomas included well differentiated adenocarcinomas in 14,moderate-ly differentiated ones in 20,and poorly differentiated ones in 12.The ADC values of well,moderately and poorly differentiated ade-nocarcinomas were (1.125±0.103)×10 -3 mm2/s,(1.030±0.098)×10 -3 mm2/s and (0.922±0.091)×10 -3 mm2/s,respective-ly,exhibiting a statistical difference (χ2 =1 7.35 1,P =0.000).Mann-Whitney U test showed that difference in ADC value between different histopathological grades was statistically significant.Conclusion ADC value of rectal adenocarcinoma can be used as a bio-marker for cell grading to guide treatment decision and prognosis assessment.

OBJECTIVE:To establish HPLC fmgerprints of Naodesheng solid dispersion capsules.METHODS:HPLC method was adopted.The determination was performed on Hyspersil ODS2 column with mobile phase consisted of acetonitrile-0.05％ phosphoric acid (gradient elution) at the flow rate of 1.0 mL/min.The detection wavelengths were 210 nm (puerarin),345 nm (hydroxfsaffior yellow A).The column temperature was 30 ℃,and sample size was 10 μL.Using puerarin and hydroxysaffior yellow A as reference,HPLC fingerprints of 10 batches of sample were determined.Similarity evaluation,common peak identification and chemical components confirmation were performed by using Similarity Evaluation System of TCM Chromatographic Fingerprints (2012 edition).RESULTS:There were 29 and 23 common peaks in HPLC fingerprints of 10 batches of samples at 210 nm and 345 nm,respectively.The similarity was higher than 0.90.The medicinal material attribute of common peaks were Panax notoginseng,Ligusticum chuanxiong,Carthamus tinctorius,Pueraia lobata and Crataegus pinnatifida.Moreover,7 chemical components were identified at 210,345 nm,respectively.CONCLUSIONS:Established HPLC fingerprints can provide reference for identification and quality evaluation of Naodesheng solid dispersion capsules.

Objective To evaluate the application effect of"2+2"medicine-education cooperation talents training mode. Methods The nursing undergraduates of 2013 grade were divided into the experimental and control group. The"2+2"medicine-education cooperation talents training mode was adopted in the former and traditional training model was used in the latter. The final examination scores of the fifth and sixth semester, scores of graduation examination, scores of the Nurse Competence Scale were compared between the two groups. Results There was no difference of scores of theory examination between the two group except the Nursing Professional English whose scores were higher in the control group. The practical skills exam scores of Medical Nursing, Surgical Nursing, Paediatric Nursing, Nursing of Gynecology and Obstetrics, Emergency Nursing, Rehabilitation Nursing, Community Nursing in the experimental group were 89.32 ± 6.02, 89.46 ± 5.29, 88.06 ± 6.34, 89.32 ± 5.58, 83.99 ± 6.44, 82.58 ± 5.78, 83.56±6.12, the control group were 87.72±5.90, 87.85±6.32, 85.59±5.79, 87.45±5.65, 81.82±6.06, 80.34± 5.89, 81.28±5.42, and the differences were statistically significant (t=2.052-3.261, P<0.05). The total and practical skills scores of graduation examination in the experimental group were 82.86±4.92, 85.60±4.54, which were 81.07 ± 5.52, 84.07 ± 4.59 in the control group. There were significant differences between the two groups (t=2.060, 2.011, P<0.05). The total score of Nurse Competence Scale and scores of the four dimensions of Teaching-coaching, Managing situations, Ensuring quality, Work role were 74.95 ± 3.40, 76.38 ± 3.98, 75.49 ± 3.23, 75.42 ± 2.72, 77.49 ± 2.76 in the experimental group, the control group were 73.63 ± 4.39, 72.90 ± 4.23, 74.12 ± 4.19, 74.32 ± 3.36, 76.46 ± 3.24, respectively. The differences were statistically significant (t=2.021- 2.492, P<0.05). Conclusions The"2 + 2"medicine- education cooperation talents training mode is proved to be an effective way to train nursing applied talents to meet regional demands. It could improve the hospital′s synthetic strength including health care quality and teaching ability, promote the development and construction of the nursing specialty and train the double-certificate teachers.

Objective:By analyzing visually field of standardized residency training from 2008 to 2018, and exploring the field research hotspots and the frontier trend, to provide direction and reference for the field of standardized residency training in our country.Methods:Using CiteSpace visualized analysis software as a research tool, a statistical analysis was conducted on 1 120 pieces of literature in the field of standardized residency training retrieved from the core database of Web of Science.Results:The research strength of standardized residency training was mainly concentrated in the United States, with a total output of 697 papers, accounting for 62.23% of the total number of articles published in the past decade. High yield author Gillespie C published 8 papers, and highly cited author Aggarwal R's paper was cited 54 times. Acad Med, a highly cited journal, was cited the most frequently, with 470 citations in past 10 years. High frequency key words were "resident", "education", "performance", etc. Mutators included "system", "older adult", "operating room", and so on.Conclusion:The research hotspots in the field of standardized residency training in recent ten years include the teaching of residents, the assessment of clinical ability of residents, the standardized patients, etc. Frontier trends focus on resident self-assessment system, surgical training, resident professional core competences, etc.