接纳承诺疗法(Acceptance and Commitment Therapy,ACT)被认为是行为治疗“第三浪潮”的重要代表。本研究使用元分析结构方程模型,考察ACT的作用机制。通过数据库检索与筛选,最终纳入文献50篇。结果发现:ACT所假设的心理灵活性、接纳、...接纳承诺疗法(Acceptance and Commitment Therapy,ACT)被认为是行为治疗“第三浪潮”的重要代表。本研究使用元分析结构方程模型,考察ACT的作用机制。通过数据库检索与筛选,最终纳入文献50篇。结果发现:ACT所假设的心理灵活性、接纳、此时此刻、价值的中介作用都达到统计显著,认知解离这一中介变量并不显著;中介机制在网络化干预中仍然得到检验;相较之传统CBT,ACT在所假设的机制上有其区别于CBT的优势。后续临床研究应更全面地测量6大核心机制,关注对美好生活提升的影响,采用多点瞬时评价法,并尽可能使用更高级、更先进的统计方法检验其作用机制。展开更多
为进行有效、规范的体系结构构建,现有体系结构大多采用美国国防部体系结构框架(Department of Defense architecture framework,DoDAF)作为指导,针对采用该框架构建的体系结构的数据完备性验证问题,提出了一种基于国防部体系结构框架...为进行有效、规范的体系结构构建,现有体系结构大多采用美国国防部体系结构框架(Department of Defense architecture framework,DoDAF)作为指导,针对采用该框架构建的体系结构的数据完备性验证问题,提出了一种基于国防部体系结构框架元模型(DoDAF meta-model,DM2)的验证方法。该方法利用DM2中数据实体之间的关系,直接从DM2中提取数据的完备性规则,进而构建完备性验证矩阵,并通过验证矩阵判断体系结构数据的完备性。最后,通过一个案例进行完备性验证步骤说明和可行性分析,验证结果说明了该方法的有效性。展开更多
To ensure the operational safety of railways in the landslide-prone areas of mountainous regions,a large-scale model test and numerical simulation were conducted to study the bending moment distribution,internal force...To ensure the operational safety of railways in the landslide-prone areas of mountainous regions,a large-scale model test and numerical simulation were conducted to study the bending moment distribution,internal force distribution,deformation development,and crack propagation characteristics of a framed anti-sliding structure(FAS)under landslide thrust up to the point of failure.Results show that the maximum bending moment and its increase rate in the fore pile are greater than those in the rear pile,with the maximum bending moment of the fore pile approximately 1.1 times that of the rear pile.When the FAS fails,the displacement at the top of the fore pile is significantly greater,about 1.27 times that of the rear pile in the experiment.Major cracks develop at locations corresponding to the peak bending moments.Small transverse cracks initially appear on the upper surface at the intersection between the primary beam and rear pile and then spread to the side of the structure.At the failure stage,major cracks are observed at the pil-beam intersections and near the anchor points.Strengthening flexural stiffness at intersections where major cracks occur can improve the overall thrust-deformation coordination of the FAS,thereby maximizing its performance.展开更多
文摘接纳承诺疗法(Acceptance and Commitment Therapy,ACT)被认为是行为治疗“第三浪潮”的重要代表。本研究使用元分析结构方程模型,考察ACT的作用机制。通过数据库检索与筛选,最终纳入文献50篇。结果发现:ACT所假设的心理灵活性、接纳、此时此刻、价值的中介作用都达到统计显著,认知解离这一中介变量并不显著;中介机制在网络化干预中仍然得到检验;相较之传统CBT,ACT在所假设的机制上有其区别于CBT的优势。后续临床研究应更全面地测量6大核心机制,关注对美好生活提升的影响,采用多点瞬时评价法,并尽可能使用更高级、更先进的统计方法检验其作用机制。
基金The National Natural Science Foundation of China(No.52078427).
文摘To ensure the operational safety of railways in the landslide-prone areas of mountainous regions,a large-scale model test and numerical simulation were conducted to study the bending moment distribution,internal force distribution,deformation development,and crack propagation characteristics of a framed anti-sliding structure(FAS)under landslide thrust up to the point of failure.Results show that the maximum bending moment and its increase rate in the fore pile are greater than those in the rear pile,with the maximum bending moment of the fore pile approximately 1.1 times that of the rear pile.When the FAS fails,the displacement at the top of the fore pile is significantly greater,about 1.27 times that of the rear pile in the experiment.Major cracks develop at locations corresponding to the peak bending moments.Small transverse cracks initially appear on the upper surface at the intersection between the primary beam and rear pile and then spread to the side of the structure.At the failure stage,major cracks are observed at the pil-beam intersections and near the anchor points.Strengthening flexural stiffness at intersections where major cracks occur can improve the overall thrust-deformation coordination of the FAS,thereby maximizing its performance.
