Integrated application of multi-mode teaching based on presentation-assimilation-discussion class in medical microbiology / 中华医学教育探索杂志

Objective:To explore the effect of integrated application of multi-mode teaching in presentation-assimilation-discussion (PAD) class of medical microbiology.Methods:A total of 102 2017-batch clinical medical students of Hubei University of Medicine were collected, and the quasi-experimental study was adopted. The experimental class (50 students) was established by setting a PAD class, integrating the use of WeChat public account, Rain Classroom and WJX software during the teaching implement. And traditional mode of teaching was carried out in the control class (52 students). Moreover, the questionnaire survey and the test assessment were applied to compare the teaching effects of the two classes.Results:Questionnaire results showed that scores of indicators related to the teaching effectiveness in the experimental group were significantly higher than those in the control group ( P<0.01), and scores of tests in the experimental group were significantly better than those in the control group ( P<0.01). The t test was performed by SPSS 20 in the study. Conclusion:The integrated application of multi-mode teaching enriches the teaching mode of PAD class, which fully describes the student-centered concept, and increases students' initiative, participation, as well as students' knowledge mastery and innovation.

Ability of Disintegrating Amylum of B.subtilis HY-02 Producing ?-amylase / 环境与健康杂志

Objective To study the ability of disintegrating amylum of B.subtilis HY,02 producing ?,amylase. Methods To inoculate B.subtilis to amylaceous solutions with different concentration of 0.5%, 1.0%, 1.75% respectively for consecutive 24 h cultivation, observe the ?,amylase activity, amount of germs and the consumption of amylum at different time. Results The ?,amylase, the amount of germs and the consumption of amylum of B.subtilis(HY,02) obviously increased when the amylaceous concentration was 1.75% compared with those in 0.5% and 1% amylaceous solution groups. Conclusion The present experimental results show that the disintegrating amylum ability of B.subtilis(HY,02) is very strong compared with the old B.subtilis.