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1.
桩基施工过程中对土体的挤压与扰动势必对周围土层的位移与内力产生影响,而其影响范围是判断周围已有建构筑物稳定性的重要依据.采用目前在岩土工程领域广泛使用的三维数值模拟软件FLAC3D进行模拟计算,得出桩基施工过程中联合国海洋平面观测站(验潮井)变形与内力变化.计算结果显示:1~16号桩在施工过程中对验潮井竖向与侧向均产生了位移,但位移值较小;最小主应力与最大主应力变化不明显.通过对验潮井的位移与内力的计算,南防波堤平台桩基工程施工应由近及远依次施工,施工时应尽量避免对岩土体的扰动与破坏,不得采用爆破施工,保证基岩完整性.  相似文献   
2.
This research explored the leisure meanings of three African women, former refugees resettled in Canada. Using a hermeneutic phenomenological approach, this study revealed that leisure meanings were tightly bound in the women’s Christian faith, church, and faith community in affording them solace, socialisation, and community bonding. Furthermore, learning for leisure emphasised leisure for educational advancement, self-improvement, and knowledge-gain, to keep busy, and for companionship. Physically active leisures afforded fitness and fun, while nature-based leisure, particularly with friends, family, and their ethnocultural communities were important for restoration, nurturing relationships, and fostering social networks. These leisures also served to mitigate traumatic memories and stress. Because of the prominence of their Christian faith and the church as central to these women’s leisure, collaborative efforts by faith-based entities, leisure and recreation organisations and practitioners, settlement agencies, and mental health bodies, are recommended to effectively address the challenges and aspirations of resettled African women refugees through leisure.  相似文献   
3.
Although attention to the business risks posed by natural disasters fueled by climate change has grown, the toll that disasters have on human resources in the form of traumatic stress is comparatively neglected. It is common for more than 20% of people exposed to natural disasters to develop traumatic stress disorders that can last for years. In the workplace, traumatic stress hurts attendance, the quantity and quality of output, and relationships. Fortunately, businesses can promote employee resilience and recovery. Given the Asia-Pacific region’s high risk of natural disasters, businesses operating there should include employees’ traumatic stress in their disaster preparedness.  相似文献   
4.
This study investigates the relationships between challenge and hindrance stressors and hotel employees’ interpersonal citizenship behaviors (ICB). The study also tests the moderating role of hotel employees’ psychological capital (PsyCap) on the aforementioned relationships. Data were collected from 213 U.S. hotel frontline employees. The results showed that both challenge and hindrance stress had a negative relationship with ICB. PsyCap was found to moderate both relationships. Implications for hospitality researchers and industry practitioners are discussed along with the limitations and suggested avenues for future research.  相似文献   
5.
This article examines role stress, especially inter‐role conflicts (IRC), against the background of the consumer–citizen duality. It tests whether consumer–citizen conflicts impair the purchase of ethical food in terms of the ethical intention–behaviour gap. Furthermore, this study examines the potential of eustress arising from citizen–consumer conflicts to enhance actual ethical purchases. Additionally, determinants and moderating conditions of both IRC are tested. A combination of observations of actual purchase behaviour and survey data in a field setting is used to gain insights into role conflict formation and manifestation, arising from the desire to fulfil the demands of two opposing roles: consumer and citizen. The quantitative data are analysed with structural equation modelling to test the hypothesized coherencies simultaneously. Results indicate that stress arises similarly from both IRC. While a positive impact of eustress on purchase behaviour was absent, consumer–citizen role conflicts impede the actual purchase of ethical groceries. The data show that this role conflict derives, for example, from economic demands sent by the consumer role set when a person has ethical buying intentions. Additionally, the identification with the consumer role further amplifies this conflict. The data indicate that consumers instead of citizens should be empowered by marketing practitioners and policy makers, for example by reducing the perception of stress by communicating positive outcomes referring to relevant consumer role set members (e.g., added value for children from purchasing ethically) to stimulate problem–focused coping.  相似文献   
6.
The COVID-19 pandemic has hit the hospitality industry hard globally, resulting in millions of employees being laid off. Drawing upon the conservation of resources theory, this study aims to empirically examine how and when COVID-19-induced layoff influences employees’ in-role and extra-role performance in the hospitality industry. We tested this model by using field data collected from 302 employees and their supervisors in China across two waves. Results revealed that COVID-19-induced layoff increases survivors’ COVID-19-related stress, which in turn leads to decreased in-role and extra-role performance. The strength of these indirect effects is mitigated by perceived family support against COVID-19. Unexpectedly, perceived organizational support against COVID-19 intensifies these indirect effects. The theoretical and practical implications of this study are further discussed.  相似文献   
7.
Drought tolerant (DT) maize varieties have received massive support in sub‐Saharan Africa because of their potential to protect smallholder farmers against drought‐related maize yield losses. Using four waves of household farm panel data from six districts in Malawi, we examine the impact heterogeneity of this technology on maize productivity using a continuous treatment approach. We find strong evidence of positive correlation between maize yield and adoption of DT maize varieties. On average, an increase by one hectare in the area allocated to DT varieties increases maize yield by 547 Kg/ha representing a 44% increase from the average maize yield of 1,254 Kg/ha for our sample. Our findings give evidence that DT maize technology has potential to protect smallholder farmers against drought‐related production losses. Policies that promote increased allocation of maize area to DT maize hold potential to enhance food security. Smallholder farmers especially in drought‐prone areas should be encouraged to allocate at least one‐third of the maize plot to DT varieties while breeders continue with the efforts of breeding a DT variety that is not only drought tolerant but also adapted to all weather conditions. More importantly, the government should ensure provision of timely ex ante weather information to guide farmers on decision‐making with respect to maize varietal choices.  相似文献   
8.
Abstract

Perceived work-related stress has increased notably in recent years, reducing individuals’ well-being and increasing organizations’ and economies’ costs. This study focuses on worktime control as a key approach to reducing work stress, as the extant research on its effects reports inconsistent results. The study argues that comparisons play a major role in how work stress, conceptualized as effort-reward imbalance, occurs. Ordinary least squares is used to test hypotheses with a sample of 1721 employees from Germany to determine whether employees’ prior worktime control and employees’ referents’ worktime control affect the relationship between worktime control and work stress. Results show that (1) worktime control is negatively associated with the experience of work stress, (2) employees’ prior worktime control moderates the relationship between worktime control and work stress, and (3) there is no moderating effect of employees’ referents’ worktime control. The results are discussed in light of gift-exchange theory and related empirical findings.  相似文献   
9.
We introduce the job crafting competency construct and apply it to predict tradeoffs between competing outcomes that are inherent in job crafting, like performance and well-being or engagement and withdrawal. Job crafting competencies are the clusters of individual knowledge, skills, and abilities that are necessary to achieve personal objectives through effective job crafting problem-solving. We create a framework of job crafting competencies consisting of comprehensive/simplistic heuristic information use and approach/avoidance problem-solving skills. In Study 1, we operationalize competencies as profiles demonstrated through an aptitude-oriented assessment that predicts differences in outcomes. Five distinct profiles emerged in a sample of 174 workers. The high-volume analytic problem-solving profile was associated with higher performance and strain, while the ambivalent acquiescence profile was associated with lower performance and strain. The practical problem-solving profile minimized tradeoffs between performance and strain. Rapid problem-solving and low-volume analytic problem-solving profiles were variants in between these other patterns. Study 2 used a survey of 323 workers to support the uniqueness of the five competencies, and their relationships with approach/avoidance job crafting, engagement, and withdrawal. The research identifies a new job crafting individual difference (job crafting competencies) to delineate outcomes and tradeoffs according to unique competency profiles.  相似文献   
10.
We examine whether stress tests distort banks' risk‐taking decisions. We study a model in which a regulator may choose to rescue banks in the event of concurrent bank failures. Our analysis reveals a novel coordination role of stress tests. Disclosure of stress‐test results informs banks of the failure likelihood of other banks, which can reduce welfare by facilitating banks' coordination in risk‐taking. However, conducting stress tests also enables the regulator to more effectively intervene banks, coordinating them preemptively into taking lower risks. We find that, if the regulator has a strong incentive to bail out, stress tests improve welfare, whereas if the regulator's incentive to bail out is weak, stress tests impair welfare.  相似文献   
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