情绪智力影响工作绩效机制中工作压力的中介效用研究

情绪智力、工作压力和工作绩效是组织行为学和人力资源管理研究的热点问题。基于对287名中国员工的调查数据,从理论和实证统计上论证了情绪智力与工作绩效关系及工作压力在之间的中介作用。结果表明：情绪智力影响任务绩效过程中,工作压力产生完全中介作用;情绪智力影响关联绩效和整体工作绩效过程中,工作压力起部分中介作用,表明情绪智力影响任务绩效的机制与影响关联绩效和整体工作绩效的机制并不完全相同。提出组织可以通过培养员工情绪智力,最大限度减轻乃至消除工作压力的负向作用,从而整体上提高员工的工作绩效。     

Asymptotic Results for a Generalized Pólya Urn with “Multi-Updating” and Applications to Clinical Trials

In this article, a new Pólya urn model is introduced and studied; in particular, a strong law of large numbers and two central limit theorems are proved. This urn generalizes a model studied in Berti et al. (2004 Berti , P. , Pratelli , L. , Rigo , P. ( 2004 ). Limit theorems for a class of identically distributed random variables . Ann. Probab. 32 ( 3A ): 2029 – 2052 . [Google Scholar]), May et al. (2005 May , C. , Paganoni , A. M. , Secchi , P. ( 2005 ). On a two-color generalized Pólya urn . Metron 63 ( 1 ): 115 – 134 . [Google Scholar]), and in Crimaldi (2007 Crimaldi , I. ( 2007 ). Almost sure conditional convergence for a generalized Pólya urn. Submitted. Available at: http://amsacta.cib.unibo.it/archive/00002468  [Google Scholar]), and it has natural applications in clinical trials. Indeed, the model includes both delayed and missing (or null) responses. Moreover, a connection with the conditional identity in distribution of Berti et al. (2004 Berti , P. , Pratelli , L. , Rigo , P. ( 2004 ). Limit theorems for a class of identically distributed random variables . Ann. Probab. 32 ( 3A ): 2029 – 2052 . [Google Scholar]) is given.     

出租车司机风险驾驶行为影响机制分析

作为居民乘坐服务的提供者,出租车司机的安全驾驶是保障乘车安全的关键因素。以北京市177名出租车司机为研究对象,运用回归分析和中介检验探究风险驾驶行为的影响机制。分析认为,安全氛围、工作满意度对风险驾驶行为有负向预测作用,职业倦怠对风险驾驶行为有正向预测作用;工作满意度在安全氛围与风险驾驶行为之间起到部分中介作用,在职业倦怠与风险驾驶行为之间起到完全中介作用。     

基于混合流水作业组织的集装箱码头装卸作业集成调度优化

集装箱码头集疏运资源调度的对象是由岸桥、集卡、场桥所构成的多阶段一体化的集装箱装、卸、运操作系统,将该系统的调度优化基于多阶段混合流水线调度问题建立混合整数规划模型,同时考虑集装箱码头现实作业中预定义顺序、避免岸桥交叉作业、以及取决于作业顺序的切换时间等现实约束,针对问题自身的特点设计了两阶段启发式算法,得出各阶段设备的指派结果及作业顺序。通过与基于现行调度规则的调度方案以及与目标函数理论下界值的对比实验,显示了所提出的集成调度模型及求解算法能够有效降低船舶在港时间并实现集卡资源的共享,为集装箱码头集疏运资源的集成调度提供了新的思路。     

Job‐related stress,social support,and work–family conflict among Mexican workers in a multinational company: A case study of a Korean‐owned,US‐branded former “sweatshop” in Mexico

Due to globalization and outsourcing of commodity production, an estimated 60 million workers are employed in the garment industry by multinational corporations, yet relatively little is known about the work–family tensions experienced by these workers. Building on role stress and job demands–resources theories, this study employed mixed methods to examine job stressors, support, and work–family conflict (WFC) in a sample of 168 Mexican workers in a multinational factory, a rarely studied and underserved population. As hypothesized, results of hierarchical regression analyses indicated that workers experienced high job stress and WFC. Social support from spouses, family, and friends increased the positive association between job stress and WFC, suggesting that culturally relevant obligations increased WFC. This study highlights the need for multinational corporations to implement culturally adaptive, family‐friendly policies. Implications for social workers in multinational work organizations and for future research are discussed.     

幼儿教师心理授权与职业倦怠的关系研究

本文通过对352名幼儿教师的问卷调查,考察幼儿教师心理授权和职业倦怠的现状,并探讨幼儿教师心理授权与职业倦怠的关系。结果表明: (1) 幼儿教师心理授权和职业倦怠问卷的验证性因素分析模型与数据拟合良好; (2) 幼儿教师心理授权在学历、职务、职称与幼儿园类型上存在显著差异; (3)幼儿教师职业倦怠在年龄、职称、职务与幼儿园类型上同样存在显著差异; (4)幼儿教师心理授权各因素与其职业倦怠各因素存在非常显著的负相关; 回归分析表明,幼儿教师心理授权对其职业倦怠具有显著的负向预测作用。       

A heuristic to minimize total flow time in permutation flow shop

In this paper, we address an n-job, m-machine permutation flow shop scheduling problem for the objective of minimizing the total flow time. We propose a modification of the best-known method of Framinan and Leisten [An efficient constructive heuristic for flowtime minimization in permutation flow shops. Omega 2003;31:311–7] for this problem. We show, through computational experimentation, that this modification significantly improves its performance while not affecting its time-complexity.     

An examination of distributed lag model coefficients estimated with smoothness priors

The estimator for the coefficients of a distributed lag model with smoothness priors proposed by Shi Her (1973) is examined and an alternative ridge-type estimator is obtained utilizing restricted least squares approach, A Monte Carlo experiment is carried out to compare the behavior of these estimators.     

春秋战国时期风云人物的求职及启示

春秋战国时期的政治态势为当时风云人物脱颖而出提供了千载难逢的机遇;强烈的功名事业心、丰厚的学养、敏锐的政治洞察力以及为自己营造良好的政治氛围,利用非常规手段引起当权者的关注,或得到民众的推戴等,使当时许多杰出人物走上历史的前台,干出惊人的业绩;而脱离实际、不切实用或对求职服务对象缺乏了解,是当时一些才德之士求职失败的原因.春秋战国时代风云人物求职成败的经验教训,对今天人们的求职具有多方面启示借鉴作用.