目的总结减重代谢手术(metabolic and bariatric surgery,MBS)术后患者自我管理的最佳证据。方法采用PIPOST模式构建循证问题,依据“5S”证据模型系统检索国内外数据库中关于MBS患者术后自我管理的相关文献。检索时限为2019年1月1日—2...目的总结减重代谢手术(metabolic and bariatric surgery,MBS)术后患者自我管理的最佳证据。方法采用PIPOST模式构建循证问题,依据“5S”证据模型系统检索国内外数据库中关于MBS患者术后自我管理的相关文献。检索时限为2019年1月1日—2025年1月30日。2名研究者独立进行文献质量评价和证据提取,由研究小组将提取的证据进行整合。结果共纳入文献17篇,汇总形成6个主题和26条最佳证据。结论本研究形成了MBS患者术后自我管理的最佳证据总结,包括学习MBS相关知识、术后应开展适宜运动锻炼、注意饮食营养补充、保持良好的生活方式和积极的心理状态、注重监测与随访,可为医护人员指导患者进行自我管理提供参考依据。展开更多
The in situ synthesis of TiO_(2)semiconductor photocatalysts using Ti_(3)C_(2)MXene materials offers a highly effective approach to mitigate environmental and energy challenges by selectively reducing CO_(2)to valuabl...The in situ synthesis of TiO_(2)semiconductor photocatalysts using Ti_(3)C_(2)MXene materials offers a highly effective approach to mitigate environmental and energy challenges by selectively reducing CO_(2)to valuable chemicals like CH_(4).However,the transformation of Ti_(3)C_(2)into TiO_(2)is usually accompanied by severe agglomeration of particles,which leads to a reduction in the number of intrinsic active sites,adversely affecting the adsorption and conversion of CO_(2).To address this problem,polymethyl methacrylate(PMMA)was employed as a hard template to fabricate a bowl-shaped TiO_(2)supported on carbon layer(TiO_(2)/C)hybrid photocatalyst by a calcination method.The results showed that the obtained sample had a sufficiently large specific surface area and numerous active sites for CO_(2)adsorption and activation.The excellent conductivity of the carbon layer facilitated the separation of photogenerated carriers produced by TiO_(2),enabling the obtained TiO_(2)/C complexes exhibit CO_(2)reduction rates to CO and CH_(4)of 1.84μmol‧g^(−1)‧h^(−1)and 5.32μmol‧g^(−1)‧h^(−1),respectively,with the CH_(4)selectivity of 74%.The precise utilization of templates to refine the morphology of MXene oxidation products was thus demostrated,offering a practical approach for the application of MXene in the photocatalysis.展开更多
The paper investigated the physical properties of muga silk.Surface properties,linear density,moisture regain and mechanical properties of muga silk were tested before and after degumming.The results show that muga si...The paper investigated the physical properties of muga silk.Surface properties,linear density,moisture regain and mechanical properties of muga silk were tested before and after degumming.The results show that muga silk has tiny fineness and high strength.The average fineness and the strength of the monofilament are 1.52 dtex and 5.62 cN/dtex,respectively.This makes up for the shortcomings of other kinds of silk,and has great potential in the application of biomaterials.展开更多
文摘目的总结减重代谢手术(metabolic and bariatric surgery,MBS)术后患者自我管理的最佳证据。方法采用PIPOST模式构建循证问题,依据“5S”证据模型系统检索国内外数据库中关于MBS患者术后自我管理的相关文献。检索时限为2019年1月1日—2025年1月30日。2名研究者独立进行文献质量评价和证据提取,由研究小组将提取的证据进行整合。结果共纳入文献17篇,汇总形成6个主题和26条最佳证据。结论本研究形成了MBS患者术后自我管理的最佳证据总结,包括学习MBS相关知识、术后应开展适宜运动锻炼、注意饮食营养补充、保持良好的生活方式和积极的心理状态、注重监测与随访,可为医护人员指导患者进行自我管理提供参考依据。
文摘The in situ synthesis of TiO_(2)semiconductor photocatalysts using Ti_(3)C_(2)MXene materials offers a highly effective approach to mitigate environmental and energy challenges by selectively reducing CO_(2)to valuable chemicals like CH_(4).However,the transformation of Ti_(3)C_(2)into TiO_(2)is usually accompanied by severe agglomeration of particles,which leads to a reduction in the number of intrinsic active sites,adversely affecting the adsorption and conversion of CO_(2).To address this problem,polymethyl methacrylate(PMMA)was employed as a hard template to fabricate a bowl-shaped TiO_(2)supported on carbon layer(TiO_(2)/C)hybrid photocatalyst by a calcination method.The results showed that the obtained sample had a sufficiently large specific surface area and numerous active sites for CO_(2)adsorption and activation.The excellent conductivity of the carbon layer facilitated the separation of photogenerated carriers produced by TiO_(2),enabling the obtained TiO_(2)/C complexes exhibit CO_(2)reduction rates to CO and CH_(4)of 1.84μmol‧g^(−1)‧h^(−1)and 5.32μmol‧g^(−1)‧h^(−1),respectively,with the CH_(4)selectivity of 74%.The precise utilization of templates to refine the morphology of MXene oxidation products was thus demostrated,offering a practical approach for the application of MXene in the photocatalysis.
基金Fundamental Research Funds for the Central Universities,China(No.2232019G-06)
文摘The paper investigated the physical properties of muga silk.Surface properties,linear density,moisture regain and mechanical properties of muga silk were tested before and after degumming.The results show that muga silk has tiny fineness and high strength.The average fineness and the strength of the monofilament are 1.52 dtex and 5.62 cN/dtex,respectively.This makes up for the shortcomings of other kinds of silk,and has great potential in the application of biomaterials.
