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121.
诊疗最优化原则的伦理学探析 总被引:7,自引:6,他引:7
讨论了诊疗最优化原则的伦理学意义:它充分体现了医学的宗旨、医学职业道德理想和对患者的无私关爱,有利于纠正医疗卫生行业的时弊,昭示着医疗卫生改革发展的方向。针对实践中遇到的阻力和困惑,作者提出了促进最优化原则实施的五点建议。 相似文献
122.
前瞻记忆意向后效应会对日常生活产生负面影响,研究发现这种现象在老年人中尤其突出。近些年来,研究者们从内外两方面对影响前瞻记忆意向后效应年龄差异的因素进行了探讨,了解到认知老化所带来的抑制能力的衰退以及短时记忆缺陷是造成其年龄差异的主要原因。未来研究需进一步拓展对认知老化的机制和抑制控制能力的认识。另外,可以采用事件相关电位(Event-Related Potentials, ERPs)和功能性磁共振成像(Functional Magnetic Resonance Imaging, fMRI)等脑成像技术揭示前瞻记忆意向后效应年龄差异的加工机制及神经机制。 相似文献
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Utilizing the Social Cognitive Career Theory (SCCT) as the theoretical framework, this study proposed a moderated mediation model investigating the complex functioning mechanisms of how self-efficacy beliefs and leader support can be related to research motivation among Chinese university teachers. A group of 310 Chinese teachers working in different universities completed an online survey. Results from structural equation modeling (SEM) analysis revealed distinct influencing paths from the predictor variables (i.e., self-efficacy and leader support) to the outcome variables (i.e., intrinsic and extrinsic research motivation). Specifically, self-efficacy beliefs predicted both mastery and performance goal orientations; mastery goal orientation, in turn, positively affected intrinsic and extrinsic research motivation. In contrast, leader support was non-significant for the both types of goal orientations, but exerted strong direct influences on the both types of research motivation. Bootstrapping methods in SEM showed that it was primarily the mastery goal orientation that mediated the relationships between self-efficacy beliefs and research motivation. Furthermore, the results from the SEM and simple slope analysis revealed that leader support moderated the association between self-efficacy and extrinsic research motivation. 相似文献
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The objective of this study is to explore whether a “bad” service encounter triggers a consumer's impulse purchase in a luxury goods store in an Asian emerging market. A 2 (service encounter: favorable vs. snobbish) × 2 (shopping companion: alone vs. with a close friend) between‐group factorial design was employed with 160 female consumers in an Asian emerging market to examine the antecedents of both the urge to save social identity and the impulse purchase of luxury goods. The results show that consumers in an Asian emerging market can be triggered to make an impulse purchase of a luxury good, not because they received excellent service in the store but because they encountered snobbish service, especially when shopping with a close friend. Research implications and limitations are also discussed. 相似文献
127.
Shawn Shen 《Journal of International Migration and Integration》2017,18(3):771-789
Migration was never a brand new phenomenon in South Korea, but its migration pattern has been redirected, migrant size has been amplified, and migrant ethnicity has been diversified in recent years. Korea is undergoing dramatic changes in its demographic composition with an increasing presence of foreigners since the 1990s. Traditionally known for its cultural uniqueness and ethnic homogeneousness, the ongoing inflow of foreigners has presented new challenges, as to who the Koreans are and how the modern Korean society should be defined. Some Koreans even raise concern over migration inflow as a threat to its nationhood purity. This research examines the shifting trend of immigration in Korea with a focus on the new social development of multiculturalism, while assessing the level of social integration and multicultural discourses of the public. In addition to those widely discussed marriage immigrants and foreign labor workers in the existing literature, the recent surge of professional expats, foreign teachers, and international students is becoming evident in Korea’s multicultural mix. Moreover, there is still a lack of literature on foreign migrants in Korea, including the US military service personnel, the foreign professional sports players, non-North Korean international refugees, and the latest, permanent residency immigrants through property investment in Korea. Despite the noted increasing inflow of a variety of immigrant residents, who are constantly shaping the new faces of Korea, the acceptance of ethnic diversity and cultural integration has yet to secure its solid place in the Korean society for multiculturalism to be truly embraced and flourished. 相似文献
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物质主义指的是一种强调拥有物质财富对于个人生活重要性的价值观念。过往研究多强调其消极效应,但此观点日益面临挑战。实证研究表明物质主义在某些条件下能提升幸福感,也可以作为不安全感的补偿策略。在概念层面,有研究者基于动机的视角指出工具性物质主义是无害的,并且物质主义作为一种身份目标追求,能够建构和维持自我身份。未来研究需进一步为动机取向的物质主义概念提供实证研究的支持、评估物质主义补偿不安全感和提升幸福感的效果、基于认知和动机的整合视角考察物质主义对幸福感的积极影响。 相似文献
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Ben Kelcey Nianbo Dong Jessaca Spybrook Zuchao Shen 《Multivariate behavioral research》2017,52(6):699-719
Mediation analyses have provided a critical platform to assess the validity of theories of action across a wide range of disciplines. Despite widespread interest and development in these analyses, literature guiding the design of mediation studies has been largely unavailable. Like studies focused on the detection of a total or main effect, an important design consideration is the statistical power to detect indirect effects if they exist. Understanding the sensitivity to detect indirect effects is exceptionally important because it directly influences the scale of data collection and ultimately governs the types of evidence group-randomized studies can bring to bear on theories of action. However, unlike studies concerned with the detection of total effects, literature has not established power formulas for detecting multilevel indirect effects in group-randomized designs. In this study, we develop closed-form expressions to estimate the variance of and the power to detect indirect effects in group-randomized studies with a group-level mediator using two-level linear models (i.e., 2-2-1 mediation). The results suggest that when carefully planned, group-randomized designs may frequently be well positioned to detect mediation effects with typical sample sizes. The resulting power formulas are implemented in the R package PowerUpR and the PowerUp!-Mediator software (causalevaluation.org). 相似文献