目的:汉化冠心病患者运动恐惧量表(Fear of Activity in Patients with Coronary Artery Disease,Fact-CAD),为国内冠心病患者运动恐惧的评估提供科学、可靠的特异性工具。方法:遵循Brislin翻译模型对量表进行翻译、回译和文化调适,形...目的:汉化冠心病患者运动恐惧量表(Fear of Activity in Patients with Coronary Artery Disease,Fact-CAD),为国内冠心病患者运动恐惧的评估提供科学、可靠的特异性工具。方法:遵循Brislin翻译模型对量表进行翻译、回译和文化调适,形成中文版Fact-CAD量表。于2022年10月至2023年2月,采用便利抽样法,选取杭州市某三级甲等医院的334例冠心病患者进行调查,结合Rasch模型分析和经典测量理论对问卷的信度、效度进行评价。结果:中文版Fact-CAD为单维度,包括19个条目。各条目的未加权均方拟合统计量值为0.72~2.10,加权均方拟合统计量为0.88~1.29,条目-总分的相关系数为0.04~0.58,各条目拟合结果符合Rasch模型。以中文版多维度运动自我效能量表作为聚合效度指标,相关系数为-0.636(P<0.01),量表平均内容效度指数为0.951。总量表的Cronbach’sα系数为0.901,Guttman折半信度为0.885,重测信度为0.893。结论:中文版Fact-CAD具有良好的信度、效度,量表条目少,评估时间短,难度适中,适用于我国冠心病患者运动恐惧的评估。展开更多
To solve the fire accidents caused by coal combustion,this work prepared four hybrid hydrogel materials using bio-based polymers,flame retardants,and inorganic materials.Compared to pure water and 3.5 wt%MgCl_(2)solut...To solve the fire accidents caused by coal combustion,this work prepared four hybrid hydrogel materials using bio-based polymers,flame retardants,and inorganic materials.Compared to pure water and 3.5 wt%MgCl_(2)solution,the as-prepared hydrogel presents good fire prevention performance.In addition,it is found that CO and CO_(2)are not produced by coal when the pyrolysis temperature is lower than 200℃.During low-temperature pyrolysis,CO is more likely to be produced than CO_(2),indicating inadequate pyrolysis behavior.At the same time,the addition of fire-preventing hydrogel can not only decrease the maximum CO_(2)concentration before the critical temperature but also prolong the corresponding time.In addition,based on the cone calorimeter test,the inhibition effects of pure water,magnesium chloride solution,and four hybrid hydrogels on heat release behavior are evaluated.It is demonstrated that different dosages of different hydrogels affected the fire prevention effect.Phosphorous-modified cellulose/silica and carrageenan/DMMP/vermiculite composite hydrogels have the weakest fire prevention effect at 20 g,which is weaker than that of water.However,the fire prevention effect of carrageenan/DMMP/vermiculite composite hydrogels exceeded that of water at 40 and 60 g.Additionally,the fire prevention effect of the sodium alginate/sepiolite/ammonium polyphosphate composite hydrogel is most significant in common tests,attributed to the intumescent flame retardant system.展开更多
文摘目的:汉化冠心病患者运动恐惧量表(Fear of Activity in Patients with Coronary Artery Disease,Fact-CAD),为国内冠心病患者运动恐惧的评估提供科学、可靠的特异性工具。方法:遵循Brislin翻译模型对量表进行翻译、回译和文化调适,形成中文版Fact-CAD量表。于2022年10月至2023年2月,采用便利抽样法,选取杭州市某三级甲等医院的334例冠心病患者进行调查,结合Rasch模型分析和经典测量理论对问卷的信度、效度进行评价。结果:中文版Fact-CAD为单维度,包括19个条目。各条目的未加权均方拟合统计量值为0.72~2.10,加权均方拟合统计量为0.88~1.29,条目-总分的相关系数为0.04~0.58,各条目拟合结果符合Rasch模型。以中文版多维度运动自我效能量表作为聚合效度指标,相关系数为-0.636(P<0.01),量表平均内容效度指数为0.951。总量表的Cronbach’sα系数为0.901,Guttman折半信度为0.885,重测信度为0.893。结论:中文版Fact-CAD具有良好的信度、效度,量表条目少,评估时间短,难度适中,适用于我国冠心病患者运动恐惧的评估。
基金the National Key Research and Development Program of China(Grant No.2017YFC0805900)the Fundamental Research Funds for the Central Universities(Grant No.WK2320000047)the USTC Research Funds of the Double First-Class Initiative(Grant No.YD2320002004).
文摘To solve the fire accidents caused by coal combustion,this work prepared four hybrid hydrogel materials using bio-based polymers,flame retardants,and inorganic materials.Compared to pure water and 3.5 wt%MgCl_(2)solution,the as-prepared hydrogel presents good fire prevention performance.In addition,it is found that CO and CO_(2)are not produced by coal when the pyrolysis temperature is lower than 200℃.During low-temperature pyrolysis,CO is more likely to be produced than CO_(2),indicating inadequate pyrolysis behavior.At the same time,the addition of fire-preventing hydrogel can not only decrease the maximum CO_(2)concentration before the critical temperature but also prolong the corresponding time.In addition,based on the cone calorimeter test,the inhibition effects of pure water,magnesium chloride solution,and four hybrid hydrogels on heat release behavior are evaluated.It is demonstrated that different dosages of different hydrogels affected the fire prevention effect.Phosphorous-modified cellulose/silica and carrageenan/DMMP/vermiculite composite hydrogels have the weakest fire prevention effect at 20 g,which is weaker than that of water.However,the fire prevention effect of carrageenan/DMMP/vermiculite composite hydrogels exceeded that of water at 40 and 60 g.Additionally,the fire prevention effect of the sodium alginate/sepiolite/ammonium polyphosphate composite hydrogel is most significant in common tests,attributed to the intumescent flame retardant system.
