目的:系统评价青年急性心肌梗死发生的主要危险因素,为心肌梗死预防决策提供依据。方法:检索PubMed、Embase、Web of Science、Cochrane、Library、万方数据、中国知网(CNKI)、维普网(VIP)、中国生物医学文献数据库(CBM)等,均从建库日...目的:系统评价青年急性心肌梗死发生的主要危险因素,为心肌梗死预防决策提供依据。方法:检索PubMed、Embase、Web of Science、Cochrane、Library、万方数据、中国知网(CNKI)、维普网(VIP)、中国生物医学文献数据库(CBM)等,均从建库日期检索至2022年4月的所有文献,全面收集与青年急性心肌梗死发病危险因素有关的所有病例-对照研究。由2名评价员初步筛选并独立提取资料,并评价其方法学质量。对符合要求的研究,采用RevMan 5.3和Stata 14.0统计软件对提取的相关数据进行分析。结果:最终纳入7篇病例对照研究文献,病例组1061例,对照组1627例。Meta分析结果显示吸烟[OR=2.40,95%CI(1.84,3.13)]、心血管病家族史[OR=1.97,95%CI(1.53,2.55)]、高血脂[OR=1.79,95%CI(1.52,2.12)]、高血压[OR=2.17,95%CI(1.61,2.92)]、糖尿病[OR=1.99,95%CI(1.11,3.56)]与青年急性心肌梗死发病相关。结论:吸烟、心血管病家族史、高血脂、高血压、糖尿病是目前青年急性心肌梗死发病的危险因素。展开更多
Adsorption kinetics for a stilbene derivative type fluorescent whitening agent (FWA) on fiber surfaces was studied based on a real-time spectroscopic measurement system. Results showed that the time-dependent behavior...Adsorption kinetics for a stilbene derivative type fluorescent whitening agent (FWA) on fiber surfaces was studied based on a real-time spectroscopic measurement system. Results showed that the time-dependent behavior of FWA agrees to that of a mono-molecular adsorption layer on fiber surfaces,as characterized in Langmuir-type expression. The adsorption has two distinguishable stages includ-ing initial fast phase with the primary constant of 1.51×1014 and the later near-equilibrium phase with the secondary constant of 4.96×10-4. The maximum amount of FWA adsorbed on fiber surfaces is 1.67×10-4g (per dry weight based fiber) in the initial phase. A mathematical model of adsorption kinetics was therefore established and evaluated. This model is important for the optimization of FWA applica-tion in papermaking.展开更多
文摘目的:系统评价青年急性心肌梗死发生的主要危险因素,为心肌梗死预防决策提供依据。方法:检索PubMed、Embase、Web of Science、Cochrane、Library、万方数据、中国知网(CNKI)、维普网(VIP)、中国生物医学文献数据库(CBM)等,均从建库日期检索至2022年4月的所有文献,全面收集与青年急性心肌梗死发病危险因素有关的所有病例-对照研究。由2名评价员初步筛选并独立提取资料,并评价其方法学质量。对符合要求的研究,采用RevMan 5.3和Stata 14.0统计软件对提取的相关数据进行分析。结果:最终纳入7篇病例对照研究文献,病例组1061例,对照组1627例。Meta分析结果显示吸烟[OR=2.40,95%CI(1.84,3.13)]、心血管病家族史[OR=1.97,95%CI(1.53,2.55)]、高血脂[OR=1.79,95%CI(1.52,2.12)]、高血压[OR=2.17,95%CI(1.61,2.92)]、糖尿病[OR=1.99,95%CI(1.11,3.56)]与青年急性心肌梗死发病相关。结论:吸烟、心血管病家族史、高血脂、高血压、糖尿病是目前青年急性心肌梗死发病的危险因素。
文摘Adsorption kinetics for a stilbene derivative type fluorescent whitening agent (FWA) on fiber surfaces was studied based on a real-time spectroscopic measurement system. Results showed that the time-dependent behavior of FWA agrees to that of a mono-molecular adsorption layer on fiber surfaces,as characterized in Langmuir-type expression. The adsorption has two distinguishable stages includ-ing initial fast phase with the primary constant of 1.51×1014 and the later near-equilibrium phase with the secondary constant of 4.96×10-4. The maximum amount of FWA adsorbed on fiber surfaces is 1.67×10-4g (per dry weight based fiber) in the initial phase. A mathematical model of adsorption kinetics was therefore established and evaluated. This model is important for the optimization of FWA applica-tion in papermaking.
