ABSTRACT
Objective:To explore the methods and effect of applying specialized training and multimedia education in key infection-related departments of a hospital to intervene standard precautions for clinical practice interns.Methods:Based on the cases of nosocomial infection at home and abroad, the Science and Education Section and Infection Management Section designed and produced videos about standard precautions and occupational protection. The content of these videos covered two fields including knowledge training and skill training, with emphasis on enhancing awareness of profession risks and skills of hospital infection control and occupational protection of 196 medical students through specialized training in key infection-related departments. The training effect of standard precautions education for the two groups of students was evaluated from the theoretical test scores, questionnaire survey on their attitude and compliance to standard precautions, and the incidence of their occupational exposure to needle stab wound. SPSS 18.0 was performed for t test and chi-square test. Results:Apart from the knowledge of the unfavorable factors of implementing standard precautions, there were significant differences between the experimental group and the control group in six aspects: theoretical test scores, hospital infection risk cognition, significance cognition of standard precautions, favorable factors of implementing standard precautions, self-efficacy evaluation and self-evaluation of compliance to standard precautions ( P<0.05). And there was significant difference in the incidence of occupational exposure to needle stab wound between the experiment group and control group (1.02% vs. 7.14%; χ2=4.69, P<0.05). Conclusion:Various teaching interventions of standard precautions during the entire internship period have expanded and deepened the contents of school education, enabling the students to form good occupational risk awareness and coping skills to protect the patients and themselves.
ABSTRACT
AIM: To investigate and optimize the technology of ultrasonic-assisted extraction of arctiin and arctigenin from Fructus arctii.METHODS: The effects of ultrasonic power,particle size,ratio of liquid to solid,extraction time,extraction temperature and duty factor on the extraction rates of arctiin and arctigenin were investigated,and optimized with orthogonal experiments.RESULTS: The results showed that the optimal extraction conditions were as follows: particle 80 ～ 100 mesh 14 mL/g,ratio of liquid to solid 400 W ultrasonic power,50 ℃ of extraction temperature,and 10 min of extraction time.CONCLUSION: The optimized conditions are reasonable and reliable.