Background:Current global health course is most set as elective course taught in traditional teacher-taught model with low credit and short term.Innovate teaching models are required.Crowdsourcing characterized by hig...Background:Current global health course is most set as elective course taught in traditional teacher-taught model with low credit and short term.Innovate teaching models are required.Crowdsourcing characterized by high flexibility and strong application-orientation holds its potential to enhance global health education.We applied crowdsourcing to global health teaching for undergraduates,aiming to develop and evaluate a new teaching model for global health education.Methods:Crowdsourcing was implemented into traditional course-based teaching via introducing five COVID-19 related global health debates.Undergraduate students majoring in preventative medicine and nursing grouped in teams of 5-8,were asked to resolve these debates in reference to main content of the course and with manner they thought most effective to deliver the messages.Students’experience and teaching effect,were evaluated by questionnaires and teachers’ratings,respectively.McNemar’s test was used to compare the difference in students’experience before and after the course,and regression models were used to explore the influencing factors of the teaching effect.Results:A total of 172 undergraduates were included,of which 122(71%)were females.Students’evaluation of the new teaching model improved after the course,but were polarized.Students’self-reported teaching effect averaged 67.53±16.8 and the teachers’rating score averaged 90.84±4.9.Students majoring in preventive medicine,participated in student union,spent more time on revision,and had positive feedback on the new teaching model tended to perform better.Conclusion:We innovatively implemented crowdsourcing into global health teaching,and found this new teaching model was positively received by undergraduate students with improved teaching effects.More studies are needed to optimize the implementation of crowdsourcing alike new methods into global health education,to enrich global health teaching models.展开更多
Electrofusion of evacuolated (N. Tabacum L. cvs. Gexin no1) and vacuolated (N. Rustic) tobacco mesophyll protoplasts was performed on the Chinese spacecraft (Shenzhou No. 4, from 30th Dec. 2002 to 6th Jan. 2003). The ...Electrofusion of evacuolated (N. Tabacum L. cvs. Gexin no1) and vacuolated (N. Rustic) tobacco mesophyll protoplasts was performed on the Chinese spacecraft (Shenzhou No. 4, from 30th Dec. 2002 to 6th Jan. 2003). The results showed that the frequency of bi-nucleated and mul-tinucleated protoplasts was significantly increased under microgravity. Compared with the control samples incubated on the ground, the viability of protoplasts incubated in space was much higher. In addition, the influence of altered gravity on carbohydrates was also observed. These results confirmed the effect of microgravitation on electrofusion of plant cell protoplasts.展开更多
基金supported by Higher Education Teaching Reform Project in Guangdong Province(Guangdong Education High Letter[2020]No.20).
文摘Background:Current global health course is most set as elective course taught in traditional teacher-taught model with low credit and short term.Innovate teaching models are required.Crowdsourcing characterized by high flexibility and strong application-orientation holds its potential to enhance global health education.We applied crowdsourcing to global health teaching for undergraduates,aiming to develop and evaluate a new teaching model for global health education.Methods:Crowdsourcing was implemented into traditional course-based teaching via introducing five COVID-19 related global health debates.Undergraduate students majoring in preventative medicine and nursing grouped in teams of 5-8,were asked to resolve these debates in reference to main content of the course and with manner they thought most effective to deliver the messages.Students’experience and teaching effect,were evaluated by questionnaires and teachers’ratings,respectively.McNemar’s test was used to compare the difference in students’experience before and after the course,and regression models were used to explore the influencing factors of the teaching effect.Results:A total of 172 undergraduates were included,of which 122(71%)were females.Students’evaluation of the new teaching model improved after the course,but were polarized.Students’self-reported teaching effect averaged 67.53±16.8 and the teachers’rating score averaged 90.84±4.9.Students majoring in preventive medicine,participated in student union,spent more time on revision,and had positive feedback on the new teaching model tended to perform better.Conclusion:We innovatively implemented crowdsourcing into global health teaching,and found this new teaching model was positively received by undergraduate students with improved teaching effects.More studies are needed to optimize the implementation of crowdsourcing alike new methods into global health education,to enrich global health teaching models.
文摘Electrofusion of evacuolated (N. Tabacum L. cvs. Gexin no1) and vacuolated (N. Rustic) tobacco mesophyll protoplasts was performed on the Chinese spacecraft (Shenzhou No. 4, from 30th Dec. 2002 to 6th Jan. 2003). The results showed that the frequency of bi-nucleated and mul-tinucleated protoplasts was significantly increased under microgravity. Compared with the control samples incubated on the ground, the viability of protoplasts incubated in space was much higher. In addition, the influence of altered gravity on carbohydrates was also observed. These results confirmed the effect of microgravitation on electrofusion of plant cell protoplasts.
