1.OBSERVATION ON ANTIOXIDATIVE ACTIVITY OF SOME VEGETABLES AND FRUITS
Acta Nutrimenta Sinica 1956;0(02):-
In this study we studied the antioxidative activity of kidney bean, eggplant, peach, sweet pepper, banana, rape, potato, tomato, celery, grape, cucumber, leek and cowpea, using the inhibition rate of TBAS formation (TBASI) as an indicator. Meanwhile we estimated the activity of eliminating superoxide by means of chemiluminescence method. The main results were shown as follows:1.Before boiling, kidney bean, leek, eggplant, banana, rape and cow-pea showed much higher TBASI values than cucumber, grape and tomato. After boiling for 20 minutes, TBASI values in grape, banana and eggplant were higher than those in cucumber and tomato.2.After boiling for 20 minutes, the TBASI values in eggplant, kidney. bean, leek, cowpea and potato were decreased; whereas that in grape increased significantly.3.No relationship was found between the TBASI values and the abilities of eliminating superoxide in vegetables and fruits.4.Among the vegetables and fruits studied, eggplant possessed the most potential ability of eliminating superoxide, but kidney bean and sweet pepper the next, and cucumber, tomato, peach, grape the least.
2.Factors affecting effectiveness of team learning of college students and their relationship
Xiuli WANG ; Dianzhi LIU ; Tiejun WU ; Xinying ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2014;23(3):268-270
Objective To explore the key antecedent variables of team effectiveness and their correlation.Methods The stratified cluster random sampling was conducted to recruit 133 college students from a university in Fujian Province.Results (1) Communication and back up behaviors were positive predictors of team grade (β =0.645,0.315,P<0.01)and satisfaction degree of team members (β=0.305,0.309,P<0.01).Free riding had negative influence to the satisfaction of team members (β=-0.392,P<0.01).(2)Accuracy of tusk cognition and tusk concern were positively related to team performance (β=0.513,0.470,P<0.01),and accuracy of tusk cognition and team efficacy were predictors of satisfaction of team members (β=0.502,0.373,P<0.01).(3)Team process variables mediated the relationship between team mentalmodel and tear effectiveness.Conclusion Antecedent variables include team process variables and team mental model.Between team mental model and team effectiveness,the team process variables play a mediating role.