The stratagem of the empty city is a kind of traditional stratagem of ancient China.This stratagem is a type of psychological tactic,making full use of the enemy’s caution.It can be simply seen as a sort of deceptive...The stratagem of the empty city is a kind of traditional stratagem of ancient China.This stratagem is a type of psychological tactic,making full use of the enemy’s caution.It can be simply seen as a sort of deceptive tactic,applying to the situations of standoff and retreat.The stratagem of the empty city appeared many times in the war history of ancient China,offering many examples to the researchers.As a matter of fact,in ancient China,it was proved that the stratagem of the empty city could be adopted in many different fields such as military and politics.This stratagem was recorded in Thirty-Six Stratagems,one of the most famous military works of ancient China.With time goes by,compared with its original form,the stratagem of the empty city has greatly changed,developing some new forms.This stratagem is also of great use in modern politics and warfare.展开更多
目的系统评价吉妮与MCu375宫内节育器(intrauterine device,IUD)的安全性和有效性。方法计算机检索PubMed、EMBASE、Web of science、CENTRAL、POPLINE、ClinicalTrials、CNKI、VIP、Wanfang等数据库和网站,时间为数据库建库至2018年12...目的系统评价吉妮与MCu375宫内节育器(intrauterine device,IUD)的安全性和有效性。方法计算机检索PubMed、EMBASE、Web of science、CENTRAL、POPLINE、ClinicalTrials、CNKI、VIP、Wanfang等数据库和网站,时间为数据库建库至2018年12月。运用Endnote及RevMan 5.3.3进行文献管理和数据分析。结果共检索到8179篇文献,根据纳入及排除标准,最终纳入8篇文献。结果显示:(1)妊娠:随访6个月、1年、2年时,吉妮和MCu375使用者的妊娠率相似。按是否为人工流产即时放置分组,两组随访1年的妊娠率比较,差异无统计学意义(P>0.05)。(2)脱落:随访1年、2年时,吉妮和MCu375的脱落率差异有统计学意义(P<0.05)。1年随访亚组分析发现,人工流产即时放置组吉妮的脱落率低于MCu375;非人工流产即时放置组两者差异无统计学意义(P>0.05)。(3)因症终止:随访6个月、1年、2年时,吉妮的因症终止率低于MCu375,差异有统计学意义(P<0.05)。1年随访亚组分析发现,吉妮因症终止率均低于MCu375(P<0.05)。(4)与IUD使用相关终止:随访1年、2年时,吉妮的与IUD使用相关终止率均低于MCu375,差异有统计学意义(P<0.05)。1年随访亚组分析发现,吉妮的与IUD使用相关终止率均低于MCu375(P<0.05)。结论本次研究未发现吉妮IUD在降低妊娠率方面的优势,但其在降低因症终止、与IUD使用相关终止,以及人工流产后即时放置后脱落的发生率方面优势显著。展开更多
文摘The stratagem of the empty city is a kind of traditional stratagem of ancient China.This stratagem is a type of psychological tactic,making full use of the enemy’s caution.It can be simply seen as a sort of deceptive tactic,applying to the situations of standoff and retreat.The stratagem of the empty city appeared many times in the war history of ancient China,offering many examples to the researchers.As a matter of fact,in ancient China,it was proved that the stratagem of the empty city could be adopted in many different fields such as military and politics.This stratagem was recorded in Thirty-Six Stratagems,one of the most famous military works of ancient China.With time goes by,compared with its original form,the stratagem of the empty city has greatly changed,developing some new forms.This stratagem is also of great use in modern politics and warfare.
文摘目的系统评价吉妮与MCu375宫内节育器(intrauterine device,IUD)的安全性和有效性。方法计算机检索PubMed、EMBASE、Web of science、CENTRAL、POPLINE、ClinicalTrials、CNKI、VIP、Wanfang等数据库和网站,时间为数据库建库至2018年12月。运用Endnote及RevMan 5.3.3进行文献管理和数据分析。结果共检索到8179篇文献,根据纳入及排除标准,最终纳入8篇文献。结果显示:(1)妊娠:随访6个月、1年、2年时,吉妮和MCu375使用者的妊娠率相似。按是否为人工流产即时放置分组,两组随访1年的妊娠率比较,差异无统计学意义(P>0.05)。(2)脱落:随访1年、2年时,吉妮和MCu375的脱落率差异有统计学意义(P<0.05)。1年随访亚组分析发现,人工流产即时放置组吉妮的脱落率低于MCu375;非人工流产即时放置组两者差异无统计学意义(P>0.05)。(3)因症终止:随访6个月、1年、2年时,吉妮的因症终止率低于MCu375,差异有统计学意义(P<0.05)。1年随访亚组分析发现,吉妮因症终止率均低于MCu375(P<0.05)。(4)与IUD使用相关终止:随访1年、2年时,吉妮的与IUD使用相关终止率均低于MCu375,差异有统计学意义(P<0.05)。1年随访亚组分析发现,吉妮的与IUD使用相关终止率均低于MCu375(P<0.05)。结论本次研究未发现吉妮IUD在降低妊娠率方面的优势,但其在降低因症终止、与IUD使用相关终止,以及人工流产后即时放置后脱落的发生率方面优势显著。
