Objective:This study provides a preliminary evaluation of the usability and acceptability of a mobile application(sexual assault care algorithm,SACA).Methods:An explanatory sequential mixed methods research was used.A...Objective:This study provides a preliminary evaluation of the usability and acceptability of a mobile application(sexual assault care algorithm,SACA).Methods:An explanatory sequential mixed methods research was used.A quantitative survey was followed up by a qualitative study.A convenience sample of participants(n=4)was recruited.The research was conducted on a one-on-one basis.In the quantitative phase,a random assignment technique was used to divide four participants into two groups of two participants each.Post-Study System Usability Questionnaire(PSSUQ)and Acceptability e-Scale were used to collect quantitative data.In the qualitative phase,interview,observation,and documentation were used to collect qualitative data.Data were analyzed both quantitative and qualitatively.The qualitative data were linked with the initial quantitative data to determine how the follow-up qualitative data helped explain the initial quantitative results.Results:The quantitative results suggested that SACA has high usability(5.05±1.83)and acceptability(3.81±1.22).The qualitative results further indicate that the participants thought SACA was easy to use and useful,and most of them would recommend it to others.Areas of improvement include adding features that would calculate and validate the elapsed time since the sexual assault,adding explanations to some buttons,and providing training.Conclusions:Our findings highlight the value of using a mixed methods research design to conduct a usability and acceptability test.Nurses are more likely to adopt a new technology for their evidencebased practice when the technology is easy to use and useful and requires less time to find the right piece of guideline evidence.Individualized training needs to be designed based on users'characteristics.展开更多
Aims Soil inorganic nitrogen(N)has long been recognized to play an important role in plant invasions.Whilst comparing the N use strategies of multiple invasive versus native plant congeners along an entire N gradient ...Aims Soil inorganic nitrogen(N)has long been recognized to play an important role in plant invasions.Whilst comparing the N use strategies of multiple invasive versus native plant congeners along an entire N gradient is key to understanding plant invasion success,there are few related studies.Methods We conducted a potted experiment with six invasive and native congeneric pairs,which were subjected to 11 nitrate/ammonium(NO3−/NH4+)ratios(i.e.100%NO3−at one end and 100%NH4+at the other end),each with low-and high-N levels.Each species–N combination was replicated eight times,and thus there were 2112 pots in total.We measured the following traits:the total biomass,growth advantage,biomass allocation,leaf chlorophyll content and low-N tolerance.Important Findings Invasive and native congeners grew well at any NO3−/NH4+ratios,and their responses of growth,allocation and tolerance were approximately parallel along the 11 NO3−/NH4+ratios across two N levels.Plant invaders grew larger and had greater chlorophyll contents,higher root biomass allocation and stronger low-N tolerance than their congeneric natives.These findings suggest that invasive and native plant congeners may utilize similar inorganic N forms(i.e.NO3−and NH4+)across an entire N composition gradient and that higher N use efficiencies could favor alien plants to invade new plant communities where congeneric natives are dominants.展开更多
基金The development of the application for SACA was partially supported by funding from the Upstate Foundation,a 501(c)3 nonfor-profit corporation (upstatefoundation.org)
文摘Objective:This study provides a preliminary evaluation of the usability and acceptability of a mobile application(sexual assault care algorithm,SACA).Methods:An explanatory sequential mixed methods research was used.A quantitative survey was followed up by a qualitative study.A convenience sample of participants(n=4)was recruited.The research was conducted on a one-on-one basis.In the quantitative phase,a random assignment technique was used to divide four participants into two groups of two participants each.Post-Study System Usability Questionnaire(PSSUQ)and Acceptability e-Scale were used to collect quantitative data.In the qualitative phase,interview,observation,and documentation were used to collect qualitative data.Data were analyzed both quantitative and qualitatively.The qualitative data were linked with the initial quantitative data to determine how the follow-up qualitative data helped explain the initial quantitative results.Results:The quantitative results suggested that SACA has high usability(5.05±1.83)and acceptability(3.81±1.22).The qualitative results further indicate that the participants thought SACA was easy to use and useful,and most of them would recommend it to others.Areas of improvement include adding features that would calculate and validate the elapsed time since the sexual assault,adding explanations to some buttons,and providing training.Conclusions:Our findings highlight the value of using a mixed methods research design to conduct a usability and acceptability test.Nurses are more likely to adopt a new technology for their evidencebased practice when the technology is easy to use and useful and requires less time to find the right piece of guideline evidence.Individualized training needs to be designed based on users'characteristics.
基金Ministry of Science and Technology of the People's Republic of China(2017YFC1200102)the National Natural Science Foundation of China(31971552).
文摘Aims Soil inorganic nitrogen(N)has long been recognized to play an important role in plant invasions.Whilst comparing the N use strategies of multiple invasive versus native plant congeners along an entire N gradient is key to understanding plant invasion success,there are few related studies.Methods We conducted a potted experiment with six invasive and native congeneric pairs,which were subjected to 11 nitrate/ammonium(NO3−/NH4+)ratios(i.e.100%NO3−at one end and 100%NH4+at the other end),each with low-and high-N levels.Each species–N combination was replicated eight times,and thus there were 2112 pots in total.We measured the following traits:the total biomass,growth advantage,biomass allocation,leaf chlorophyll content and low-N tolerance.Important Findings Invasive and native congeners grew well at any NO3−/NH4+ratios,and their responses of growth,allocation and tolerance were approximately parallel along the 11 NO3−/NH4+ratios across two N levels.Plant invaders grew larger and had greater chlorophyll contents,higher root biomass allocation and stronger low-N tolerance than their congeneric natives.These findings suggest that invasive and native plant congeners may utilize similar inorganic N forms(i.e.NO3−and NH4+)across an entire N composition gradient and that higher N use efficiencies could favor alien plants to invade new plant communities where congeneric natives are dominants.
