In this paper,we study the dynamics of a Susceptible-Exposed-Infectious-Recovered(SEIR)nancial risk contagion model with time delay.Using stability theory and Hopf bifurcation theory,equilibria stability and Hopf bifu...In this paper,we study the dynamics of a Susceptible-Exposed-Infectious-Recovered(SEIR)nancial risk contagion model with time delay.Using stability theory and Hopf bifurcation theory,equilibria stability and Hopf bifurcation are analyzed in detail.Based on the epidemic model,we improve it by taking prior prevention and self-rescue into consideration,conclude pre-ventive intensity and self-rescue capabilities e ect the number of infections.At the same time,the analytical conditions for Hopf bifurcation are obtained,and the relevant results are veri ed by numerical simulations.展开更多
目的探讨院前电话指导急产产妇自救的重要性。方法对我中心2012年5月—2014年8月期间急救医生在前往现场同时对呼救人员进行及时合理的电话指导自救,分析临床应用效果。结果接诊9例急产妇中,2例安全转送到院内入产房完成分娩,7例院前分...目的探讨院前电话指导急产产妇自救的重要性。方法对我中心2012年5月—2014年8月期间急救医生在前往现场同时对呼救人员进行及时合理的电话指导自救,分析临床应用效果。结果接诊9例急产妇中,2例安全转送到院内入产房完成分娩,7例院前分娩。产妇呼救时已分娩4例,发生新生儿轻度窒息1例、Ⅱ度会阴裂伤1例,产后出血达500 m L者1例;产妇呼救过程中分娩3例,发生Ⅰ度裂伤1例,产后出血量200~300 m L,无1例发生新生儿窒息、坠地和创伤等急产并发症。经及时合理电话的指导及接诊后处理,9例产妇母子全部痊愈出院。结论及时、准确、恰当的院前电话指导自救,可避免急救医生未到达现场前产妇或家属因缺乏医学常识而采取一些错误的处置措施,对降低孕产妇及围生儿病死率具有重要的意义。展开更多
基金Supported by National Natural Science Foundation of China(12272062).
文摘In this paper,we study the dynamics of a Susceptible-Exposed-Infectious-Recovered(SEIR)nancial risk contagion model with time delay.Using stability theory and Hopf bifurcation theory,equilibria stability and Hopf bifurcation are analyzed in detail.Based on the epidemic model,we improve it by taking prior prevention and self-rescue into consideration,conclude pre-ventive intensity and self-rescue capabilities e ect the number of infections.At the same time,the analytical conditions for Hopf bifurcation are obtained,and the relevant results are veri ed by numerical simulations.
文摘目的探讨院前电话指导急产产妇自救的重要性。方法对我中心2012年5月—2014年8月期间急救医生在前往现场同时对呼救人员进行及时合理的电话指导自救,分析临床应用效果。结果接诊9例急产妇中,2例安全转送到院内入产房完成分娩,7例院前分娩。产妇呼救时已分娩4例,发生新生儿轻度窒息1例、Ⅱ度会阴裂伤1例,产后出血达500 m L者1例;产妇呼救过程中分娩3例,发生Ⅰ度裂伤1例,产后出血量200~300 m L,无1例发生新生儿窒息、坠地和创伤等急产并发症。经及时合理电话的指导及接诊后处理,9例产妇母子全部痊愈出院。结论及时、准确、恰当的院前电话指导自救,可避免急救医生未到达现场前产妇或家属因缺乏医学常识而采取一些错误的处置措施,对降低孕产妇及围生儿病死率具有重要的意义。
