By introducing a smooth merit function for the median function, a new smooth merit function for box constrained variational inequalities (BVIs) was constructed. The function is simple and has some good differential pr...By introducing a smooth merit function for the median function, a new smooth merit function for box constrained variational inequalities (BVIs) was constructed. The function is simple and has some good differential properties. A damped Newton type method was presented based on it.Global and local superlinear/quadratic convergence results were obtained under mild conditions, and the finite termination property was also shown for the linear BVIs. Numerical results suggest that the method is efficient and promising.展开更多
The author derives a kind of weighted norm inequalities which relate the multilinear potential type integral operators to the corresponding maximal operators.
目的探究城乡居民医保整合政策对中老年人健康及健康不平等的影响,为进一步完善城乡居民医保制度提供循证依据。方法基于中国健康与养老追踪调查(China health and retirement longitudinal study,CHARLS)2013—2018年三期数据,利用多...目的探究城乡居民医保整合政策对中老年人健康及健康不平等的影响,为进一步完善城乡居民医保制度提供循证依据。方法基于中国健康与养老追踪调查(China health and retirement longitudinal study,CHARLS)2013—2018年三期数据,利用多时点双重差分法探究城乡居民医保整合政策对中老年人自评健康、失能和抑郁的影响。通过集中指数分析中老年人健康不平等状况及其变动趋势;并将指数按照不同年份、不同整合模式进行分解,探究城乡居民医保对中老年人健康不平等的影响。结果共调查中老年人7589名,城乡居民医保整合政策对中老年人自评健康产生了显著的促进作用(OR=1.309,P<0.001),对抑郁的发生有显著的减轻作用(OR=0.696,P<0.001),但却显著提高了中老年人的失能得分(β=0.354,P<0.001),未能改善中老年人的失能状况。此外,我国中老年人存在健康不平等现象,有健康问题的中老年人主要集中在社会经济地位较低的群体,且健康不平等问题随时间推移而不断扩大。城乡居民医保对缓解健康不平等存在一定作用,对失能不平等和抑郁不平等的贡献率分别由2013年的1.21%、1.20%下降至2018年的-0.58%、0.31%,且相较于一档制模式,分档制对于低收入群体健康状况的负面影响更大。结论城乡居民医保整合政策改善了中老年人的自评健康及抑郁状况,但对于改善失能状况作用有限。该项政策能够一定缓解中老年人健康不平等,但人群内部健康不平等状况差异较大。建议加强城乡居民医保的顶层设计,从“重医轻防”向“预防为主、防治结合”策略转变,从消除户籍界限的形式公平过渡到消除报销政策等壁垒的实质公平。展开更多
基金Project supported by the Teaching and Research Award Program for the Outstanding YoungTeachers in Higher Education Institutes of Munistry of Education, P.R.China
文摘By introducing a smooth merit function for the median function, a new smooth merit function for box constrained variational inequalities (BVIs) was constructed. The function is simple and has some good differential properties. A damped Newton type method was presented based on it.Global and local superlinear/quadratic convergence results were obtained under mild conditions, and the finite termination property was also shown for the linear BVIs. Numerical results suggest that the method is efficient and promising.
基金Supported by Natural Science Foundation of Hebei Province(A2006000129)
文摘The author derives a kind of weighted norm inequalities which relate the multilinear potential type integral operators to the corresponding maximal operators.
文摘目的探究城乡居民医保整合政策对中老年人健康及健康不平等的影响,为进一步完善城乡居民医保制度提供循证依据。方法基于中国健康与养老追踪调查(China health and retirement longitudinal study,CHARLS)2013—2018年三期数据,利用多时点双重差分法探究城乡居民医保整合政策对中老年人自评健康、失能和抑郁的影响。通过集中指数分析中老年人健康不平等状况及其变动趋势;并将指数按照不同年份、不同整合模式进行分解,探究城乡居民医保对中老年人健康不平等的影响。结果共调查中老年人7589名,城乡居民医保整合政策对中老年人自评健康产生了显著的促进作用(OR=1.309,P<0.001),对抑郁的发生有显著的减轻作用(OR=0.696,P<0.001),但却显著提高了中老年人的失能得分(β=0.354,P<0.001),未能改善中老年人的失能状况。此外,我国中老年人存在健康不平等现象,有健康问题的中老年人主要集中在社会经济地位较低的群体,且健康不平等问题随时间推移而不断扩大。城乡居民医保对缓解健康不平等存在一定作用,对失能不平等和抑郁不平等的贡献率分别由2013年的1.21%、1.20%下降至2018年的-0.58%、0.31%,且相较于一档制模式,分档制对于低收入群体健康状况的负面影响更大。结论城乡居民医保整合政策改善了中老年人的自评健康及抑郁状况,但对于改善失能状况作用有限。该项政策能够一定缓解中老年人健康不平等,但人群内部健康不平等状况差异较大。建议加强城乡居民医保的顶层设计,从“重医轻防”向“预防为主、防治结合”策略转变,从消除户籍界限的形式公平过渡到消除报销政策等壁垒的实质公平。
