目的探究握力与认知功能的关联是否存在性别差异。方法利用2011—2014年美国国家健康与营养调查(National Health and Nutrition Examination Survey,NHANES)数据库开展横断面研究,评估即时记忆、延迟记忆、言语流畅性和注意力4个认知...目的探究握力与认知功能的关联是否存在性别差异。方法利用2011—2014年美国国家健康与营养调查(National Health and Nutrition Examination Survey,NHANES)数据库开展横断面研究,评估即时记忆、延迟记忆、言语流畅性和注意力4个认知领域。采用加权线性回归、加权Logistic回归、相乘模型进行分析。结果回归分析显示,在男性,与握力最低组的研究对象相比,握力最高组研究对象有更低的整体认知功能降低(OR=0.377,95%CI:0.182~0.781)和即时记忆降低(OR=0.409,95%CI:0.221~0.759)的风险。在女性,握力与整体认知功能降低(OR=0.405,95%CI:0.224~0.733)、言语流畅性降低(OR=0.567,95%CI:0.356~0.902)以及注意力降低(OR=0.357,95%CI:0.211~0.607)的风险呈显著负相关关系。同时,性别和握力在整体认知功能、言语流畅性和注意力均存在显著交互作用,但是即时记忆、延迟回忆2个认知领域未检测到显著的交互作用。结论握力对整体认知功能和不同认知领域的影响存在性别差异。因此,提高握力水平,特别是女性,有利于预防认知功能下降。展开更多
Finding sustainable energy resources is essential to face the increasing energy demand.Trees are an important part of ancient architecture but are becoming rare in urban areas.Trees can control and tune the pedestrian...Finding sustainable energy resources is essential to face the increasing energy demand.Trees are an important part of ancient architecture but are becoming rare in urban areas.Trees can control and tune the pedestrian-level wind velocity and thermal condition.In this study,a numerical investigation is employed to assess the role of trees planted in the windward direction of the building complex on the thermal and pedestrian wind velocity conditions around/inside a pre-education building located in the center of the complex.Compared to the previous studies(which considered only outside buildings),this work considers the effects of trees on microclimate change both inside/outside buildings.Effects of different parameters including the leaf area density and number of trees,number of rows,far-field velocity magnitude,and thermal condition around the main building are assessed.The results show that the flow velocity in the spacing between the first-row buildings is reduced by 30%-40% when the one-row trees with 2 m height are planted 15 m farther than the buildings.Furthermore,two rows of trees are more effective in higher velocities and reduce the maximum velocity by about 50%.The investigation shows that trees also could reduce the temperature by about 1℃around the building.展开更多
考察了5种乳化剂及复配阴离子助乳化剂对液晶结构、稳定性、肤感、外观及保湿性的影响,旨在开发出一款适合干性肌肤、具有明显液晶结构、长效保湿并兼具滋润顺滑肤感的配方体系。实验结果表明,TEGO CARE 165、Olivem 1000K、Prolipid?14...考察了5种乳化剂及复配阴离子助乳化剂对液晶结构、稳定性、肤感、外观及保湿性的影响,旨在开发出一款适合干性肌肤、具有明显液晶结构、长效保湿并兼具滋润顺滑肤感的配方体系。实验结果表明,TEGO CARE 165、Olivem 1000K、Prolipid?141、仿生液晶、DOLCEA MB均会形成液晶结构,添加阴离子乳化剂硬脂酰谷氨酸钠会减少液晶的形成,考察体系中TEGO CARE 165体系液晶结构最为密集规整,滋润度及肤感最好,长期稳定性较好,具有长效保湿功效。该体系可作为液晶储备基质体系。展开更多
文摘目的探究握力与认知功能的关联是否存在性别差异。方法利用2011—2014年美国国家健康与营养调查(National Health and Nutrition Examination Survey,NHANES)数据库开展横断面研究,评估即时记忆、延迟记忆、言语流畅性和注意力4个认知领域。采用加权线性回归、加权Logistic回归、相乘模型进行分析。结果回归分析显示,在男性,与握力最低组的研究对象相比,握力最高组研究对象有更低的整体认知功能降低(OR=0.377,95%CI:0.182~0.781)和即时记忆降低(OR=0.409,95%CI:0.221~0.759)的风险。在女性,握力与整体认知功能降低(OR=0.405,95%CI:0.224~0.733)、言语流畅性降低(OR=0.567,95%CI:0.356~0.902)以及注意力降低(OR=0.357,95%CI:0.211~0.607)的风险呈显著负相关关系。同时,性别和握力在整体认知功能、言语流畅性和注意力均存在显著交互作用,但是即时记忆、延迟回忆2个认知领域未检测到显著的交互作用。结论握力对整体认知功能和不同认知领域的影响存在性别差异。因此,提高握力水平,特别是女性,有利于预防认知功能下降。
文摘Finding sustainable energy resources is essential to face the increasing energy demand.Trees are an important part of ancient architecture but are becoming rare in urban areas.Trees can control and tune the pedestrian-level wind velocity and thermal condition.In this study,a numerical investigation is employed to assess the role of trees planted in the windward direction of the building complex on the thermal and pedestrian wind velocity conditions around/inside a pre-education building located in the center of the complex.Compared to the previous studies(which considered only outside buildings),this work considers the effects of trees on microclimate change both inside/outside buildings.Effects of different parameters including the leaf area density and number of trees,number of rows,far-field velocity magnitude,and thermal condition around the main building are assessed.The results show that the flow velocity in the spacing between the first-row buildings is reduced by 30%-40% when the one-row trees with 2 m height are planted 15 m farther than the buildings.Furthermore,two rows of trees are more effective in higher velocities and reduce the maximum velocity by about 50%.The investigation shows that trees also could reduce the temperature by about 1℃around the building.
文摘考察了5种乳化剂及复配阴离子助乳化剂对液晶结构、稳定性、肤感、外观及保湿性的影响,旨在开发出一款适合干性肌肤、具有明显液晶结构、长效保湿并兼具滋润顺滑肤感的配方体系。实验结果表明,TEGO CARE 165、Olivem 1000K、Prolipid?141、仿生液晶、DOLCEA MB均会形成液晶结构,添加阴离子乳化剂硬脂酰谷氨酸钠会减少液晶的形成,考察体系中TEGO CARE 165体系液晶结构最为密集规整,滋润度及肤感最好,长期稳定性较好,具有长效保湿功效。该体系可作为液晶储备基质体系。
