论非自愿移民的历史地位与作用

非自愿移民是在国际移民理论研究中受排斥的领域 ,显然极不正常。非自愿移民是中国移民史的主流形态 ,非自愿移民在中国社会经济发展中起了重要作用。有中国特色的移民理论是中国移民实践全部历史经验的继承与发展     

语用失误对英语教学的启示

本文以JennyThomas的理论为依据,针对日常英语交际中经常出现的语用失误,进行了分析调查,阐明了语用失误的主要原因,研究出了一些对英语教学非常有用的方法,提出了在日常英语教学中怎样培养学生的语用能力的一些建议。     

追求自我解放 寻觅自由人生--劳伦斯笔下的理想女性厄秀拉

劳伦斯笔下的叛逆女性厄秀拉是劳伦斯塑造的最理想的人物.她为人正直,追求真理与不合理的社会进行奋力抗争,虽屡遭失败,仍不放弃追求,最后在大自然和周游世界中获得了自由.厄秀拉的这种追求是作家拯救西方人摆脱精神危机的有价值的尝试.     

BATHTUB-TYPE CURVES IN RELIABILITY AND BEYOND

Finding optimal, or at least good, maintenance and repair policies is crucial in reliability engineering. Likewise, describing life phases of human mortality is important when determining social policy or insurance premiums. In these tasks, one searches for distributions to fit data and then makes inferences about the population(s). In the present paper, we focus on bathtub‐type distributions and provide a view of certain problems, methods and solutions, and a few challenges, that can be encountered in reliability engineering, survival analysis, demography and actuarial science.     

Beyond recruitment: Predictors of differential participation in a national antihunger organization

Surprisingly little research has sought to explain differential participation after recruitment into social movement organizations (SMOs). This study examines the influence of several sets of predictors on participation by members of a national organization in the antihunger movement. The findings highlight the importance of incentive, ideological, and microstructural factors for differential participation and suggest that favorable perceptions of SMOs also promote participation. Final remarks address the implications of the findings for the social movement and voluntary organization literatures.     

间歇开放系统的可靠性分析与数值计算

研究了一种新型的可靠性系统，即间歇开放系统。在建立数学模型的基础上，我们详细分析了系统有关的可靠性问题，不仅获得时刻ｔ系统失效的概率和（０，ｔ］中系统失效的平均次数的瞬态解，而且也获得其平稳结果。最后用数值计算比较了间歇开放系统和经典系统的差别。     

A Multivariate Model for Repeated Failure Time Measurements

A parametric multivariate failure time distribution is derived from a frailty-type model with a particular frailty distribution. It covers as special cases certain distributions which have been used for multivariate survival data in recent years. Some properties of the distribution are derived: its marginal and conditional distributions lie within the parametric family, and association between the component variates can be positive or, to a limited extent, negative. The simple closed form of the survivor function is useful for right-censored data, as occur commonly in survival analysis, and for calculating uniform residuals. Also featured is the distribution of ratios of paired failure times. The model is applied to data from the literature     

考虑质量失误的供应链博弈模型研究

在理性的制造商和供应商组成的二级供应链中,考虑存在产品质量失误的情况下,通过最优化方法选择中间品的质量水平和制造商的检测水平,以实现供应链的利润最大化.并结合实际情况,根据质量内部、外部失误的不同承担方式,讨论了三种质量损失承担方式,得到在整体损失由两者共同承担的情况下,通过制定合理的内、外部损失分配系数,可以使两者选择水平的纳什均衡解与供应链的全局最优解相符,从而实现供应链全局最优和局部最优的一致.所得结论对指导供应链的有效运作有着较好的实际意义和参考价值.     

基于定性模拟的员工离职行为预测

员工是企业最具生命力的资源,员工的主动离职往往会给企业造成不必要的损失.综合国内外有关员工离职问题的研究,构建了一个员工离职过程模型,将定性模拟技术引入其中,根据QSIM算法的思路,结合有关员工离职行为的常识、专家知识设计了模拟规则,用VB编程并进行了模拟,模拟结果比较符合实际,表明这一方法可以用于员工离职预测的虚拟实验研究.     

Feeling well while chronically ill or impaired: a multilevel study on the moderating role of employment and volunteering in Europe

People with a chronic condition tend to report poorer subjective well-being than people without. This article examines the dependence of the relationship on doing paid and voluntary work, and on macro-level labour market exclusion of people with and without chronic conditions. Data from the European Quality of Life Survey (2011–2012) of people aged between 25 and 65 are analysed using multilevel regression techniques. A chronic condition has a stronger negative effect on subjective well-being for persons who are economically inactive or who never engage in voluntary work. The importance of paid work, however, varies with national levels of labour exclusion.