目的评估运动干预对中国高血压患者血压的影响,为我国高血压干预方案的进一步选择和优化提供参考依据。方法在中国知网(CNKI)、维普(VIP)、万方数据库和PubMed数据库、Cochrane图书馆、SpringerLink收集2012年1月1日至2016年12月31日国...目的评估运动干预对中国高血压患者血压的影响,为我国高血压干预方案的进一步选择和优化提供参考依据。方法在中国知网(CNKI)、维普(VIP)、万方数据库和PubMed数据库、Cochrane图书馆、SpringerLink收集2012年1月1日至2016年12月31日国内外公开发表的有关我国运动干预对高血压患者血压影响的随机对照试验,用Stata 12.0软件对纳入文献进行荟萃分析并进一步亚组分析,以收缩压和舒张压为主要效应指标。结果纳入22篇文献,干预组1105人,对照组1067人;荟萃分析结果表明,干预后运动干预组收缩压[加权均数差(WMD)=-10.71,95%CI-14.56^-6.86 mm Hg]和舒张压(WMD=-5.77 mm Hg,95%CI-8.26^-3.28)低于对照组(均P<0.01);不同运动干预时长、运动方式、运动频率及是否联合用药的亚组分析结果显示,运动干预组与对照组差异有统计学意义(均P<0.01);敏感性分析显示荟萃分析结果较为稳定可靠;Egger's线性回归法结果显示文章存在发表偏倚(P<0.05)。结论运动干预对高血压患者血压降低有一定的作用,不同方式运动干预达2个月对降低高血压患者血压有意义。展开更多
Measuring the microscopic temperature of graphene is challenging.We used cholesteric liquid crystal microcapsules(CLCMs)as temperature sensors to detect the local temperature of three-dimensional porous graphene throu...Measuring the microscopic temperature of graphene is challenging.We used cholesteric liquid crystal microcapsules(CLCMs)as temperature sensors to detect the local temperature of three-dimensional porous graphene through quantitative visualization.Based on a CLCM(~20μm in size),we determined the temperature variation in a small area with an accuracy of 0.1℃.By analyzing the color changes between two CLCMs,we demonstrated the temperature changes dynamically in a region with a diameter of approximately 110μm.Furthermore,by comparing the color evolution among the three CLCMs,we visualized the anisotropic thermal properties in the micro-zone.This convenient and low-cost temperature measurement method is expected to further improve graphene-based devices.展开更多
文摘目的评估运动干预对中国高血压患者血压的影响,为我国高血压干预方案的进一步选择和优化提供参考依据。方法在中国知网(CNKI)、维普(VIP)、万方数据库和PubMed数据库、Cochrane图书馆、SpringerLink收集2012年1月1日至2016年12月31日国内外公开发表的有关我国运动干预对高血压患者血压影响的随机对照试验,用Stata 12.0软件对纳入文献进行荟萃分析并进一步亚组分析,以收缩压和舒张压为主要效应指标。结果纳入22篇文献,干预组1105人,对照组1067人;荟萃分析结果表明,干预后运动干预组收缩压[加权均数差(WMD)=-10.71,95%CI-14.56^-6.86 mm Hg]和舒张压(WMD=-5.77 mm Hg,95%CI-8.26^-3.28)低于对照组(均P<0.01);不同运动干预时长、运动方式、运动频率及是否联合用药的亚组分析结果显示,运动干预组与对照组差异有统计学意义(均P<0.01);敏感性分析显示荟萃分析结果较为稳定可靠;Egger's线性回归法结果显示文章存在发表偏倚(P<0.05)。结论运动干预对高血压患者血压降低有一定的作用,不同方式运动干预达2个月对降低高血压患者血压有意义。
基金supported by the Young Scientists Fund of the National Natural Science Foundation of China(No.61605088)the Natural Science Foundation of Jiangsu Province,China(No.BK20150845)+1 种基金the Open Foundation Project of the National Laboratory of Solid State Microstructures,Chinathe China Postdoctoral Science Foundation(No.2019M651768)。
文摘Measuring the microscopic temperature of graphene is challenging.We used cholesteric liquid crystal microcapsules(CLCMs)as temperature sensors to detect the local temperature of three-dimensional porous graphene through quantitative visualization.Based on a CLCM(~20μm in size),we determined the temperature variation in a small area with an accuracy of 0.1℃.By analyzing the color changes between two CLCMs,we demonstrated the temperature changes dynamically in a region with a diameter of approximately 110μm.Furthermore,by comparing the color evolution among the three CLCMs,we visualized the anisotropic thermal properties in the micro-zone.This convenient and low-cost temperature measurement method is expected to further improve graphene-based devices.
