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91.
Journal of Happiness Studies - Research on awe and meaning in life (MIL) is rare. In the current research, we conducted a pre-registered study to examine how awe influences MIL from the perspective... 相似文献
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The purpose of this study was to investigate the relationship between exercise mode and executive function and its effect on behavior and neuroelectric activity. Forty-eight older adults were classified into open-skill, closed-skill, and irregular exercise groups based on their experience of exercise participation. Executive function was measured via a task-switching paradigm, in which the behavioral indices and event-related potentials elicited by task-switching were assessed. The results revealed that the exercise groups, regardless of the exercise mode, exhibited faster reaction times in both global and local switches than the irregular exercise group, regardless of the within-task conditions. Similarly, larger P3 amplitudes were observed in both exercise groups compared to the irregular exercise group. Moreover, additional facilitation effects of open-skill exercises on global switch costs were observed, whereas no differences in local switch costs were found among the three groups. The results replicate previous studies that have reported generally improved executive function after participation in exercises; additionally, they extend the current knowledge by indicating that these cognitive improvements in specific aspects of executive function could also be obtained from open-skill exercises. 相似文献
93.
We explore how waiting to choose influences patience. We propose that waiting to make an intertemporal choice increases the assumed value of the items for which people are waiting, leading them to become more patient. Five studies support this model. Study 1 finds that after waiting to choose, people exhibit greater patience than if they had not waited or before they had started to wait. Studies 2a and 2b find that increased valuation (rather than decreased cost of the wait) mediates the impact of waiting on patience. Study 3 further finds that whereas waiting to choose increases preference for a larger-later (over smaller-sooner) item, it also increases willingness to pay to expedite delivery of a single item. Finally, study 4 shows the waiting effect is stronger for hedonic than for utilitarian products. These studies modify existing theory by identifying the conditions under which waiting to choose can improve patience. 相似文献
94.
Improvements in the fatigue resistance of a nickel-based alloy have been achieved via a surface nanocrystallization and hardening (SNH) process. The enhanced fatigue resistance is related to the surface nanocrystallization, work hardening, and compressive residual stresses induced by the SNH process. 相似文献
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Liling Sun Qi Wu Limin Wang Ming Zhang Daoyang Dai Zhongxing Bao 《Philosophical Magazine Letters》2013,93(12):793-796
The phase transitions of Zr41.2Ti13.8Cu12.5Ni10Be22.5 bulk metallic glass have been investigated under high pressures and at room temperature. Direct resistance measurements in a diamond anvil cell provide evidence of a reversible transition between amorphous and crystalline phases; crystallization events occurred at 24 and 26.2 GPa on uploading, and crystalline-to-amorphous phase transitions were observed at 16 and 10.6 GPa on downloading. The phase transitions were confirmed by transmission electron microscopy observations. 相似文献
97.
如何认识艺术实践的伦理之维,事关对艺术意义的准确理解和对其审美功能的深度认识。伦理关系体现着人类的最终理想,而具体的道德规范只是人类实现其最终愿望的必要手段,仅仅遵循道德规范并不能实现人类的希望。艺术的伦理价值往往落实于对既成社会规范的挑战,而并非对时代道德习俗的循规蹈矩地遵守;艺术的伦理意义常常拥有一种超道德性。 相似文献
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IRT模型参数估计的新方法——MCMC算法 总被引:1,自引:0,他引:1
本研究主要探讨MCMC算法在IRT模型参数估计中的实现及其估计精度.通过模拟多种实验条件(人少题少、人题适中、人多题多、被试数及其参数固定情况下项目数变化、项目数及其参数固定情况下人数变化),考察两参数和叁参数Logistic模型的MCMC算法对其参数估计的精度,并与国际通用测量程序-Bilog程序(E-M算法)进行比较研究.模拟实验研究表明,上述各种实验条件下,MCMC算法均可用于IRT模型参数估计,且其估计的精度均较Bilog程序(E-M算法)高,值得推广. 相似文献