ObjectiveTo revise belief in a just world scale (BJW) established by Dalbert according with Chinese cultures and examine its reliability and validity.MethodsAt the base of studying abroad-related questionnaire and preparatory tests,a total 930 undergraduates form The East,The Middle and The West of China participant in this test respectively.ResultsThrough item analysis and explore factor analysis,the revised belief in a just world contained 13 items and 2 subscales which could explain 52.205％ of the total variances.The results of confirmatory factor analysis showed that the revised belief in a just world scales had good construct validity.The Cronbach's coefficients of the scales was 0.885,and test-retest reliabilities was 0.884.ConclusionThe revised belief in just world scales has fairly high reliability and validity.

0.05), respectively. The remnant index(%) in group 1,2,3 and 4 was 56.7, 56.7, 80 and 50 respectively. Conclusion: In vitro study indicates that there is no difference in production of shear strength and tensile strngth between teeth and the tow kinds of brackets.

Currently, saliva tests have been regarded as a potential promising diagnotic tool because of its noninvasiveness, quickness and simplicity, high accuracy, fullness of biomarkers, and other advantages. It has been applied in clinical diagnosis, treatment evaluation, epidemiological survey and other clinical works, while its potential applications have not yet been fully recognized by Chinese pediatrician. This review presents an overview on the application of salivary diagnostics in pediatrics ophthalmology and otorhinolaryngology, immune system diseases, nervous-mental system diseases and other system diseases, and offers a new potential research strategy for accurate diagnosis and treatment of pediatric diseases.

To promote sustainable development of the hospital,Peking University Cancer Hospital adopted a series of measures to help advance the health professionals,which include a favorable recruiting and training systemsto attract high-level talents,recruit qualified graduates,supporting outstanding young asholars to studying abroad,etc.. These measures have achieved remarkable results,and have in turn greatly promoted the continuous development of medical practice and scientific research work of the hospital.

Objective To investigate the polymorphisms of the 19 Y-STR loci in the Han population in Northeast China,and analyze the genetic relationships of 15 ethnic groups in northeast Asia region,and to evaluate their forensic value and population genetic value.Methods The 19 Y-STR unrelated Han males in 200 unrelated Han males in Northeast China were amplified with the Y-filer system,and the PCR products were analyzed by the 310 Genetic Analyzer.The AMOVA analysis,cluster analysis and MDS analysis were calculated by Arelquin3.11,Mega4.1 and SPSS17.0.Results The polymorphisms of 19 Y-STR loci in the Han population in Northeast China had generally higher gene diversity value which were ranged from 0.350 9 (DYS391) to 0.971 1 (DYS385a/b),and totally 200 haplotypes were observed.The 19 Y-STR loci displayed high genetic polymorphisms in the Han population in Northeast China,indicating that these 19 loci were useful genetic markers for forensic personal identification and paternity testing.There were distinctions among 15 ethnic groups.The genetic distance between 15 ethnic groups were ranged from 0.000 9 to 0.643 2,and the conclusion of cluster analysis and MDS analysis were similar to the ethnogeny research and ethnic migration history.Conclusion The 19 Y-STR loci displayed high genetic polymorphisms in the Han population in Northeast China,and these 19 loci were useful genetic markers for forensic personal identification and paternity testing.

ObjectiveTo examine the relationship between belief in a just world of college students and prosocial tendencies.Methods400 college students were examined by using the belief in a just of Chinese versions ( BJW ) and the prosocial tendencies scales.Results①There was a marginally significant difference on college student's general belief in a just world and personal belief in a just world among different grades ( F=3.90,F=3.05,P ＜ 0.05 ).②The personal belief in a just world and general belief in a just world was significantly posilively correlated with the prosocial tendencies of college students ( r =0.25,r =0.24,P ＜ 0.01 ).③Significant differences existed between the high-scoriug,the middle group and the low-scoring BJW group in prosocial tendencies and its sub-dimensions ( F =3.36 ～ 12.87,P ＜ 0.05,P ＜ 0.01 ),expect the openness dimension of prosocial tendencies( F =1.71,P ＞ 0.05 ).The scores of those three groups on prosocial tendencies ( (3.74 ± 0.43 ),( 3.57 ± 0.42),( 3.44 ± 0.43 ) ) and its sub-dimensions shows a decreasing trend from high to low.④Layer multivariate linear regression analysis showed that general belief in a just world were significant predictors of the prosocial tendencies( β =0.18,P＜ 0.01 ).ConclusionsThe intensity of belief in a just world has a certain impact on the prosocial tendencies of college students.

BACKGROUND: Bracket dropping is often seen in clinic. Can these shed brackets be used again; what should be done to treat these brackets; is the bond strength of these recycled brackets different from those new ones, these questions are often concerned by orthodontists in their clinic and are the purpose of our study as well.OBJECTIVE: To evaluate the shear bond strength and compare two base-cure methods of recycled brackets. DESIGN: Grouping control study. SITTING: Department of Orthodontics, the Affiliated Hospital of Medical College, Qingdao University; Department of Materials, Dental School, Beijing University. MATERIALS: The teeth were collected from Oral Surgery, the Affiliated Hospital of Medical College, Qingdao University. The age was from 11 to 19 years. The gender was half male and half female. Intact enamel of the crown was required, but decayed, fracture, tetracycline pigmentation teeth or fluorosis teeth were excluded. Patients provided the confirmed consent for this experiment.METHODS: The experiment was carried out in Stomatology College of Peaking University in December 2005. Thirty ex vivo teeth were selected randomly from those prepared enamel surfaces, used as sample for rebounding. The edgewise brackets of swallow-tailed brackets were bonded on each tooth and rebonded after 24 hours. The teeth were cleaned and divided randomly into 3 groups. There were 10 teeth in each group. Group 1 was bonded with new brackets; group 2 with recycled brackets whose adhesive remnant were burned and got rid of; group 3 with recycled brackets whose adhesive remnant in the groove of the base were stored. Bracket was provided by Standard edgewise, Orsu Company, Hangzhou, China. After 24 hours, the shear bond strength was tested with material testing machine (Autogragh, Shimadzu, Japan). Adhesive remnant index (ARI) was added up. MAIN OUTCOME MEASURES: Shear strength of old metal bracket after rebonding and adhesive remnant.RESULTS: ① Shear bond strength: The shear bond strengths were (10.094±3.158 9) in group 1, (10.266±2.406 0) in group 2 and (8.898±1.365 9) in group 3. There were no statistically significant differences among the three groups (P > 0.05). ② ARI scores: ARI scores were 51.7%, 58.3% and 35.0% in the three groups, respectively. There were statistically significant differences between group 2 and 3. CONCLUSION: In vitro study indicates that the recycled metal brackets can reach good bond strength and that maybe there is chemical bond between new and old adhesive.

Objective To evaluate the feasibility and efficacy of suspended method in scar hidden technology in laparoscopic appendec-tomy ( LA) . Methods 27 patients underwent scar hidden laparoscopic appendectomy with the aid of suspended method. Silver probe was pierced abdominal cavity,bended into a hook shape and fixed appendix,then underwent appendectomy. Results 27 patients finished surgery successfully,the operative time was 25~100 min ( mean, 45 min) ,the blood loss during operation was 10~50 mL ( mean,20 mL) ,the hos-pital stay was 3~8 d ( mean,4 d) . Conclusion Scar hidden technology in laparoscopic appendectomy with the aid of suspended method is safe,feasible and further improves the cosmic result.

Objective To investigate the risk factors, treatment methods and significance of the cervical venous angle lymph node metastasis in differentiated thyroid cancer. Methods The clinical data of 222 patients with thyroid papillary carcinoma from December 2012 to January 2014 were collected. The surgical methods, complications and postoperative complications and pathology were analyzed. Results Lymph node metastasis was found in 133 cases. when VI lymph node was positive , the lateral cervical lymph node positive rate was 43%(57/133) inⅡDistrict, 54%(72/133) inⅢDistrict,ⅣDistrict 45%(60/133) inⅣDistrict, 60%(80/133) in jugular angle, and 6%(8/133) in V District. The levels of bleeding volume, operation time and hospitalization time in functional neck dissection (FND) group were significantly higher than those in anterior cervical muscle group and reserved anterior cervical muscle group (P<0.05). Single factor analysis showed that diameter of the tumors, thyroid membrane invasion and central region lymph node metastasis had correlations with venous angle lymph metastasis (P<0.01). Logistic regression analysis showed that thyroid membrane invasion (OR=3.539), central region lymph node metastasis (OR = 1.617), diameters of the tumors (OR = 1.321)were the risk factors of cervical venous angle lymph node metastasis. Conclusions Patients with tumor diameter equal to or more than 1.5 cm, thyroid membrane invasion and lymph node metastasis number greater than or equal to 2 should be performed with lateral neck lymph node dissection. Also the venous angle lymph node dissection should be done in these patients so as to increase radical rate.

Objective:To study the tissue speciality of endothelium-dependent vascular relaxation mediated by endothelial protein activated by acetylcholine (EPA)and its relationship with atherosclerosis.Methods:The tension of the isolated artery preparations was recorded using isometric-tension method and the isolated endothelium-intact vessels derived from normal and hyperlipidemic animal artery.Results:The EPA-mediated endothelium-dependent vascular relaxation was exhibited in rabbit aorta, renal, femoral, carotid, pulmonary arteries and cat aorta, renal, femoral, mesentery, coronary arteries but with different EC50. The sensitivity of EPA to ACh in descending order: pulmonary>renal>aorta>femoral>carotid arteries in rabbits. In cats,coronary>aorta>femoral>mesentary>renal. The endothelium-dependent vascular relaxation mediated by EPA in aorta, carotid and pulmonary arteries decreased significantly in hyperlipidemia rabbits.Conclusions:EPA effect existed wildly in testing artery and was of different tissue sensitivity. The decrease in EPA potency was closely related to occurence of atheroclerosis.