The Impact of Taking Parental Leave on Fathers’ Participation In Childcare And Relationships With Children: Lessons from Sweden

In Sweden, government-mandated paid parental leave has been available to both mothers and fathers since 1974. By 2006, each parent had two non-transferable leave months and nine additional months to share. From the beginning, parental leave was presented as a policy designed to promote gender equality, with women and men having equal opportunities and responsibilities to contribute economically to the family and care for children. Sweden thus provides a unique setting to explore whether social policy can be an important instrument for changing the gender contract. Analysing survey data from 356 fathers working in large private companies, we found that the amount of parental leave days taken had positive effects on several aspects of fathers’ participation in childcare and on their satisfaction with contact with children, controlling for other factors contributing to fathers’ participation in childcare. Our findings suggest that the full potential of Sweden's parental leave policy for degendering the division of labour for childcare will not likely be met until fathers are strongly encouraged by social policy to take a more equal portion of parental leave.     

卧式椭圆轨迹振动筛的自定中心问题研究

当振动筛筛箱各点作长轴平行于筛面的椭圆轨迹运动时,这种振动筛的胶带轮不可能只作定轴转动(即自定中心)。如果恰当地选择胶带轮几何中心的偏心值,胶带轮的摆动幅度将减小,因此,胶带的工作情况仍将得到改善。     

现代编辑意识浅议

编辑意识是指在编辑活动中，编辑人员所具有的观念，也就是引导编辑做好选题策划、审稿编稿、出版发行的指导思想，是从事编辑工作的主导意识。不断增强和优化编辑个体素养与群体意识、社会服务与引领学科发展意识、创新与超前意识、商品与经营意识，对促进刊物品质具有重要意义。     

论科技统计对高校发展的重要作用

科技统计是科学决策的基础，是组织架构设立和调整的依据，是科学制定和有效评价激励政策的前提，是贯彻“以人为本”管理思想的重要手段。对如何加强科技统计工作也提出了相关建议。     

论土族民间信仰象征

文章在田野调查的基础上，对土族民间信仰中的象征体系从象征思维、结构、具象等方面进行了归纳分析，认为土族民间信仰象征内容十分丰富，且随着社会的演进，其程序亦不断发生异化。     

试析技术异化的劳动异化根源

探讨现代技术异化的根源,不能只从技术层面去寻找.技术是人类生存实践的产物,技术形态和应用后果都是社会建构的,技术异化的根源也在于社会应用技术的主导模式.通过对劳动异化和技术异化的分析,认为技术异化是以资本主义生产方式和机器技术的大规模应用为前提的,根本的原因则是资本主义生产方式占据主导地位的情况下劳动异化了.因而,技术作为资本增值的内在手段,与劳动和自然对立,技术异化是劳动异化的必然表现.马克思的劳动异化思想,对我们深入理解技术异化的根源及其后果,具有极其重要的指导意义.     

FDI、要素成本与东道国产业发展

论题拓展了James R Markusen（1997）的基本模型，重点纳入外商直接投资进入东道国对其要素市场的影响，分析了FDI与东道国产业的关联效应以及在要素市场的竞争效应对东道国产业发展的影响。外商直接投资将通过关联效应和要素市场的竞争对东道国产业发展产生一个动态二阶段影响过程：在初始阶段外商直接投资的进入将引导东道国发展最终消费品产业，从而促进产业结构变动；但在东道国产业发展到一定阶段后外商直接投资与东道国产业在要素市场的竞争加剧将阻碍东道国产业发展。     

On Rates of Convergence for Bayesian Density Estimation

Abstract.  We consider the problem of estimating a compactly supported density taking a Bayesian nonparametric approach. We define a Dirichlet mixture prior that, while selecting piecewise constant densities, has full support on the Hellinger metric space of all commonly dominated probability measures on a known bounded interval. We derive pointwise rates of convergence for the posterior expected density by studying the speed at which the posterior mass accumulates on shrinking Hellinger neighbourhoods of the sampling density. If the data are sampled from a strictly positive, α -Hölderian density, with α  ∈ ( 0,1] , then the optimal convergence rate n^{− α / (2 α +1)} is obtained up to a logarithmic factor. Smoothing histograms by polygons, a continuous piecewise linear estimator is obtained that for twice continuously differentiable, strictly positive densities satisfying boundary conditions attains a rate comparable up to a logarithmic factor to the convergence rate n ^−4/5 for integrated mean squared error of kernel type density estimators.     

On an adaptive version of the Metropolis–Hastings algorithm with independent proposal distribution

In this paper, we present a general formulation of an algorithm, the adaptive independent chain (AIC), that was introduced in a special context in Gåsemyr et al . [ Methodol. Comput. Appl. Probab. 3 (2001)]. The algorithm aims at producing samples from a specific target distribution Π, and is an adaptive, non-Markovian version of the Metropolis–Hastings independent chain. A certain parametric class of possible proposal distributions is fixed, and the parameters of the proposal distribution are updated periodically on the basis of the recent history of the chain, thereby obtaining proposals that get ever closer to Π. We show that under certain conditions, the algorithm produces an exact sample from Π in a finite number of iterations, and hence that it converges to Π. We also present another adaptive algorithm, the componentwise adaptive independent chain (CAIC), which may be an alternative in particular in high dimensions. The CAIC may be regarded as an adaptive approximation to the Gibbs sampler updating parametric approximations to the conditionals of Π.     

奢华生活里的奢侈品——一场风花雪月的营销

奢侈品是一种超出人们生存与发展需要范围的、具有独特、稀缺、珍奇等特点的消费品，又称为非生活必需品。文章对我国历史上奢靡的消费现象进行了回顾，提出奢侈消费对拉动我国未来经济增长有其积极作用。随着中国经济的快速成长，奢侈品消费时代已悄悄来临。如何把握消费者的消费心理、消费行为，怎样适应中国的奢侈品消费市场，采取适合的营销对策，是一个值得我们深思的问题。