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排序方式: 共有234条查询结果,搜索用时 32 毫秒
41.
城镇化是当前的热点问题,而城镇化中的卫生问题引起了学界的广泛关注。重庆是西部唯一的直辖市和国家中心城市,自身具有大城市带大农村的典型城乡二元结构特征,对重庆市城镇化过程中城乡卫生资源配置现状及对策的研究对全国其他省市具有借鉴意义。本文运用文献查询和专家咨询法,对主要卫生指标进行对比分析,运用基尼系数评价城乡、区域间卫生资源配置的公平性,针对存在的主要问题,提出建议。  相似文献   
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A great deal of research has investigated the performance consequences of affective experiences at work, but the mediating mechanisms that explain these consequences remain understudied. In this study, we used experience sampling method to examine within-person relationships between changes in affective states and episodic performance, as mediated by attentional allocation and regulation. Our findings show that within-person changes in negative affective states have a concurrent association with episodic performance as mediated by reduced attentional allocation and regulation, while positive affective states are associated with better performance, as mediated by enhanced attentional allocation and regulation. Our results are discussed in terms of their implications for understanding the performance and attentional consequences of affective states at work.  相似文献   
44.
Research teams have made considerable progress in treating absolute uterine factor infertility through uterus transplantation, though studies have differed on the choice of either deceased or living donors. While researchers continue to analyze the medical feasibility of both approaches, little attention has been paid to the ethics of using deceased versus living donors as well as the protections that must be in place for each. Both types of uterus donation also pose unique regulatory challenges, including how to allocate donated organs; whether the donor / donor's family has any rights to the uterus and resulting child; how to manage contact between the donor / donor's family, recipient, and resulting child; and how to track outcomes moving forward.  相似文献   
45.
ABSTRACT

Indonesia is at significant risk for catastrophic natural disasters, including earthquakes, volcanic eruptions, and tsunamis. Few studies have examined psychological functioning following disaster exposure in Indonesia, the fourth most populous country in the world. This study assesses variables associated with posttraumatic stress and posttraumatic growth following a devastating earthquake in Central Java that ranks as one of the costliest in Indonesia. The participants were 85 men and women living in rural farming villages. Almost all (95%) experienced major home damage or total home destruction. Posttraumatic stress symptoms were associated with resource loss, depression, and concerns about future earthquakes. Participants reported moderate posttraumatic growth. Posttraumatic growth was associated with energy resource loss and social support. The findings support conservation of resources stress theory. The implications of the findings for intervention and recovery programs are discussed.  相似文献   
46.
The main objective of this study is to settle a rigorous field of decision analysis for rubber tree clones selection. Nowadays, there does not exist any process based upon a rigorous method to select the best clone to be plant in order to get the highest return on investment. The only known selection method is to use the experience of different protagonists acting in the plantation. So, we need a tool that takes into account very important criteria in order to achieve the main objective. This goal is achieved by using multicriterion analysis methods to the clone selection. The ranking procedure uses Elimination and Choice Expressing the Reality (ELECTRE III). For each criterion, indifference and preference thresholds are determined after establishing the relative importance of each criterion including rubber tapping, cumulative production during 15 years, cumulative production between 15 and 25 years, wind resistance, disease resistance, physiological resistance, grafting and quality of the rubber. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
47.
Two studies were conducted to test a two-stage model of the psychological mechanisms underlying the overconsumption of scarce resources in small groups. The model proposes that members of groups sharing resources first anchor their consumption choices on an “equal-division” heuristic and then, given sufficient cognitive capacity, adjust their choices in a self-serving direction. The results from both studies support the model. The first study found that when faced with a common resource pool almost all group members expressed thoughts regarding equality; however, individuals with sufficient cognitive capacity requested more from the pool and expressed more task-relevant thoughts than individuals lacking the necessary cognitive resources. The second study provided additional support for the two-stage model by demonstrating that group members' cognitions occur in the order predicted by the model and by demonstrating that an individual difference, social value orientation, affects thought processes only when individuals are not experiencing high cognitive loads. Implications are discussed.  相似文献   
48.
Poverty impedes children's executive function (EF). Therefore, it is necessary to mitigate the negative effect of poverty by developing efficient interventions to improve poor children's cognitive function. In three studies, we examined whether high-level construals can improve EF among poor children in China. In Study 1, we observed a positive relationship between family socioeconomic status and children's EF, which was moderated by construal level (n = 206; Mage = 9.71; 45.6% girls). In Study 2a, we experimentally induced high- versus low-level construals and found that poor children with high-level construals exhibited better EF than those with low-level construals (n = 65; Mage = 11.32; 47.7% girls). However, the same intervention did not affect the performance of affluent children in Study 2b (n = 63; Mage = 10.54; 54% girls). Moreover, we found that the interventional effects of high-level construals improved the ability of children living in poverty to make healthy decisions and delayed gratification in Study 3 (n = 74; Mage = 11.10; 45.9% girls). These findings may have implications for using high-level construals as an effective intervention to improve poor children's EF and cognitive capacity.  相似文献   
49.
Abstract

Allocating access to unapproved COVID-19 drugs available via Pre-Approval Access pathways or Emergency Use Authorization raises unique challenges at the intersection of clinical care and research. In conditions of scarcity, prioritization approaches should minimize harm, maximize benefit, and promote fairness. To promote continued data collection, patients seeking access to unproven COVID-19 drugs should receive lower priority for allocation when they decline to participate in clinical trials, either of the requested drug or other investigational products, offering a comparable balance of risks and benefits; special attention should be paid to concerns of voluntariness and distrust. In addition, institutional treatment protocols that can contribute more robust real world data should be preferred to single patient requests for access, with priority for inclusion based on traditional clinical allocation criteria relying on available evidence. Fairness demands distribution of these protocols across a diverse range of sites, particularly those serving marginalized populations, among other protections.  相似文献   
50.
向姝婷  赵锴  宁南 《心理科学进展》2020,28(11):1814-1835
在数字化经济迅速发展的时代, 领导者授权行为是一种激励员工的重要措施。然而, 以往关于领导者授权行为有效性的研究存在不一致发现。为了更深入地探讨领导者授权行为对员工的影响, 基于资源保存理论, 系统地构建了领导者授权行为对员工的“双刃剑”影响机制。具体而言, 第一, 基于资源视角, 将授权视为领导者为员工提供的资源, 深入分析领导者授权行为产生的“赋能”过程机制和“负担”过程机制, 并提出员工的调节定向是影响“双刃剑”机制的边界条件; 第二, 从动态角度看待领导者授权行为, 探讨领导者每日授权行为和领导者授权行为的日波动对员工的“双刃剑”影响机制; 第三, 从动态角度看待领导者授权行为所发生的组织情景。探讨相对动态的情景, 即工作事件, 对领导者授权行为“双刃剑”机制的影响。通过结合静态和动态的双重视角, 系统地探讨了领导者授权行为对员工的“双刃剑”影响机制, 具有一定的理论和实践意义。  相似文献   
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