Objective To study the expression of Galectin-3,CK19 and Ki-67 in the papillary thyroid carcinoma and papillary thyroid hyperplasia and to find the differential diagnostic makers. Methods A total of 200 cases, including 100 with papillary thyroid carcinoma and 100 papillary thyroid hyperplasia by Immunohistochemistry. Results The positive rates for Galectin-3,CK19 and Ki-67 in the papillary thyroid carcinoma were 100 %, 97 % and 93 %, which were significantly higher than those in the papillary thyroid hyperplasia (13 %, 31 %, 1 %) (P

Objective:To translate the Attention to Positive and Negative Inventory(APNI)and analyze the validity and reliability in Chinese undergraduates sample,to offer a convenient and reliable tool of measuring the cognitive bias for national researchers. Methods:The English-version APNI went through translation into Chinese, retroversion into English,translation into Chinese again,and revision several stages. Two parts of samples (1450 Chinese college students)were surveyed. Sample one (n=1000)was used for item analysis,exploratory factor a-nalysis (EFA),concurrent validity and reliability analysis,while sample 2 (n=450)was used for confirmatory fac-tor analysis (CFA). Totally 68 subjects of sample 1 were randomly chosen and resurveyed with an interval of one week. Beck depression inventory (BDI-II)and patient health questionnaire (PHQ-9)was used for concurrent validi-ty. Results:Item analysis indicated that the 22 items of Chinese APNI had good discriminability. EFA focused onattention to positive information(API)and attention to negative information(ANI)two factors. CFA showed good model fit (χ2 =1376,RMESA=0. 09,CFI=0. 94). Concurrent validity result showed that the total scores of BDI-II and PHQ-9 was negatively correlated with total scores of API (r=-0. 24,-0. 29,Ps<0. 01 ),and posi-tively correlated with total scores of ANI (r=0. 36,0. 31,Ps<0. 01). The Cronbach'αcoefficients of API and ANI sub-scale were 0. 86 and 0. 82,while the retest reliability coefficients were 0. 79 and 0. 62. Conclusion:It suggests that the Chinese APNI has good validity and reliability in a sample of college students,which could be used to eval-uate the cognitive bias of Chinese college students.

Objective:To explore the academic procrastination (AP) status and related factors in college students. Methods: Totally 828 undergraduates (277 male, 551 female, age 18-25 years) from Sun Yat-Sen University were investigated with a self-made questionnaire for basic information and Undergraduate Academic Procrastination Questionnaire (UAPQ) for AP status. UAPQ included overall learning procrastination (OLP), homework procrastination (HP), exam preparing procrastination (EPP) and self-learning procrastination (SLP). Students who scored more than 3 in OLP, HP, EPP, SLP were regarded as procrastinator. Result: The procrastination rates of OLP, HP, EPP, SLP were 40.7％, 29.7％, 41.5％, and 47.6％. Multiple linear regression analysis results showed that bigger (β = 0.32) and normal (β =0.15) influence for academic by mobile-phone, higher level of computer dependence (β =0.15) were positively related with academic procrastination. Higher (β =-0.27) and normal (β =-0.17) levels of grade satisfaction were negatively correlated with academic procrastination. The seniors' academic procrastination levels were lower than those in other grade (β =-0.12). Conclusion: It suggests that undergraduates procrastinate widely in many academic activities. Bigger and normal influence for academic by mobile-phone, higher level of computer dependence may be risk factors of procrastination, while being satisfied with grades and seniors may be protective factors.