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1.
《European Management Journal》2021,39(6):779-789
In this cross-country study we drew on job demands-resources theory to investigate whether psychological empowerment mediates the positive association between structural empowerment and work engagement and, consequently, task performance and intention to quit. A total of 1033 employees working in the service sector in Spain (N = 515) and the United Kingdom (N = 518) participated in the study. Multi-group structural equation modeling analyses revealed that psychological empowerment partially mediated the positive relationship between structural empowerment and work engagement, and that work engagement associated positively with task performance and negatively with intention to quit. Invariance analyses suggested that the positive link between psychological empowerment and work engagement was stronger for employees working in the UK than in Spain, providing support for partial structural invariance of the hypothesized model. These findings suggest that psychological empowerment is an underlying mechanism that may explain why structural empowerment relates positively to work engagement with implications for theory (i.e., extend the nomological network of the investigated constructs) and management practice (e.g., emphasize the role of structural empowerment for work design). 相似文献
2.
Max Döring 《Journal of Statistical Computation and Simulation》2019,89(16):2997-3034
The aim of this article is to review existing goodness-of-fit tests for the exponential distribution under progressive Type-II censoring and to provide some new ideas and adjustments. In particular, we consider two-parameter exponentially distributed random variables and adapt the proposed test procedures to our scenario if necessary. Then, we compare their power by an extensive simulation study. Furthermore, we propose five new test procedures that provide reasonable alternatives to those already known. 相似文献
3.
A. M. Abd El-Raheem 《Journal of Statistical Computation and Simulation》2019,89(16):3075-3104
The generalized half-normal (GHN) distribution and progressive type-II censoring are considered in this article for studying some statistical inferences of constant-stress accelerated life testing. The EM algorithm is considered to calculate the maximum likelihood estimates. Fisher information matrix is formed depending on the missing information law and it is utilized for structuring the asymptomatic confidence intervals. Further, interval estimation is discussed through bootstrap intervals. The Tierney and Kadane method, importance sampling procedure and Metropolis-Hastings algorithm are utilized to compute Bayesian estimates. Furthermore, predictive estimates for censored data and the related prediction intervals are obtained. We consider three optimality criteria to find out the optimal stress level. A real data set is used to illustrate the importance of GHN distribution as an alternative lifetime model for well-known distributions. Finally, a simulation study is provided with discussion. 相似文献
4.
李泊蒙 《吉林工程技术师范学院学报》2021,37(2):90-93
生态瞬时评估(EMA)是一种用于跟踪影响体重变化时,心理状态和环境变量的数据收集方法。本研究的主要目的是评估EMA数据收集频率对感知负担、数据质量和自我效能感的影响。具体方法是以每天1次、2次和4次的频率收集151名志愿者12个月的数据,统计出不同频率下志愿者负担和动力的均值和标准差;使用方差分析和混合效应回归来模拟调查不同提示频率对参与者负担和动力的影响。研究结论认为与一天1次和4次相比,一天2次的EMPOWER研究提示会使人们总体来说有更多的动力和更低的负担。 相似文献
5.
Patrick Spieth Sabrina Schneider Thomas Clauß Daniel Eichenberg 《Long Range Planning》2019,52(3):427-444
Hybrid organizational forms that combine commercial and welfare institutional logics play an increasingly important role in addressing the grand societal challenges we face today. Building on the literatures on hybrid organizations and social business models, we explore the characteristics of social businesses from a business model perspective. This study seeks to better understand the particularities and value drivers of hybrid social purpose in contrast to purely commercial business models. We follow a grounded theory approach and our findings are based on interview data from 17 social business firms. Building on social businesses' identified particularities, we propose four value drivers of social business models: 1) responsible efficiency, 2) impact complementarities, 3) shared values, and 4) integration novelties. We link our findings to the literature, contributing new insights into social businesses models and implications for practitioners. 相似文献
6.
大学生的思想政治教育在时代背景、社会环境和大学生自身素质等方面都呈现出了与以往不同的特点。大学生思想政治教育亟需深刻的改革和创新。通过分析当前大学生思想政治教育的现状以及存在的问题,提出相应的对策进行研究。 相似文献
7.
Business Modelling has evolved as a key activity to reflect new business venture strategy by framing the way a firm will operate and how it will function in achieving its goals (e.g., profitability, growth, innovation, social impact). However, scholars and practitioners have criticized the adoption of a too static perspective in the design and use of conventional Business Model representations. Such a static perspective prevents nascent entrepreneurs experimenting with their Business Models and, as a result, identifying the most effective strategies, especially in terms of business sustainability and profitability. In this paper, we argue that combining conventional Business Model schemas with System Dynamics modelling results in a strategy design tool that may overcome several limitations related to a static view of Business Model representation. Mapping the different key elements underlying value creation processes into a system of causal interdependencies – through the use of simulation – allows strategy analysts and entrepreneurs to experiment and learn how the business reacts to strategic and organizational changes in terms of performance, innovation and value creation. As such, Dynamic Business Models provide useful insights to strategy formulation and business venturing by capturing how critical Business Model elements interact to produce enduring competitive advantages over time. 相似文献
8.
范阳阳 《北京科技大学学报(社会科学版)》2020,36(1):65-72
哲学视角是孙郁的鲁迅研究中起步早、且一以贯之的一个方向,他独创性地将鲁迅与康德进行比较,认为在强调认识的有限性这一点上,二人不乏相似性。孙郁强调怀疑意识作为鲁迅思想的“内核”,并指出其在文化史上的意义。他以“主体性”思想为参照,对鲁迅思想和作品进行了深度解读,进而指出传统的“主奴文化”是形成“相互主体性”思想的障碍。概而言之,孙郁对于哲学视角的运用,并非纯粹的知识生产,具有鲜活的生命力和学术价值。 相似文献
9.
社会经济的不断发展促使分工愈发精细,对个人与组织间的技术隔离也愈加明显,亟待创业者个体及组织开展跨层次的交互学习以构建组织创新优势。基于此,本文援引学习理论与意义构建视角,从"行动"与"解释"出发,采用纵向单案例研究方法,基于"个体-组织"整合性分析框架,探究了不同创业阶段内跨层次行动主体间的学习互动模型,揭示了其对企业创新的影响路径。研究发现:创业者个体学习与组织学习间的互动,表现为渐变初期个体利用式学习经"自上而下"团队互动主导形成组织单环式行动;而在调整转变期,个体学习与组织学习发生交互影响,包含个体探索式学习经"横向协同式"团队互动主导形成组织双环式行动,以及组织双环式行动转换为单环式之后,经由持续反思与质询,刺激形成创业者个体利用式学习;最后,在发展突变期,个体利用式学习经"制度化统筹式"团队交互合作促成组织单环式行动,同时个体探索式学习经"跨越层次自主式"团队交互激活组织双环式学习。此外,在不同创业阶段,3种互动逻辑与意义构建框架下的创新决定机制呈现出以个体创意激发与扩散、信息整合与匹配以及平衡矛盾与冲突3种不同的影响路径展开的态势。本研究为创业学习理论和创业实践过程贡献了新的启示。 相似文献
10.
采用文献计量学研究方法和主题内容分析法,回顾了2009至2018年我国幼儿教师职业道德研究的概貌,发现该领域文献研究的热点方向依次为:幼师师德失范与因应对策、幼师专业学生职业道德培养、幼师师德的规范建构与评价等。为进一步推动我国幼儿教师职业道德研究,关切该问题的学者可以形成研究共同体,从均衡研究维度着手,不断拓展研究视野的广度,并通过开展后续研究推进成果转化。 相似文献