视频在IP网络中传输的质量研究

利用MEPEG-4视频TRACE作为输入源,通过分析MPEG-4视频的帧特性,提出了一种针对视频质量的网络传输服务质量保证机制;搭建了视频传输的仿真系统,分析了视频在网络传输中的特性,利用PSNR作为视频质量的衡量标准,在有服务质量保证和无服务质量保证机制的两种网络环境下做了仿真并比较结果,证明了提出的方法能有效提高视频质量．     

开放经济下OFDI对产业结构升级效应及传导路径

开放经济下对外直接投资(OFDI)已成为我国融入世界经济的主要途径,在优化产业结构、推进经济转型等方面扮演着重要角色。根据OFDI与产业结构升级及传导路径的互动机理分析,在对安徽省OFDI投资概况和产业结构现状进行分析的基础上,选取2003—2017年相关数据为样本构建VAR模型,运用ADF检验、脉冲响应函数等方法从产业结构总水平角度,实证分析得出短期内安徽省OFDI所能带来的产业结构升级效应并不显著的结论。进而从具体传导路径角度,采用主成分分析法,从10个变量中提取主成分构建VAR模型,运用脉冲响应等方法实证分析得出安徽省OFDI可通过贸易、省内投资、就业和技术路径来促进产业结构升级。为此,安徽省应扩大OFDI规模,提升OFDI质量和效益;增强企业竞争实力和科技创新能力,优化对外投资结构;发挥政府宏观调控和政策引导作用,加大对企业的扶持力度。     

The Intergenerational Continuity of Fathers' Absence in a Socioeconomically Disadvantaged Sample

Fathers' absence is a pattern that shows intergenerational continuity, most notably within disadvantaged populations. The process whereby this pattern is repeated across generations is not well understood. Using data from the Concordia Longitudinal Risk Project, the authors investigated pathways between fathers' absence in 1 generation and the experience of fathers' absence by their children. The current sample included 386 socioeconomically at‐risk individuals across 2 waves of data collection: (a) when they were children and (b) when they were adults with their own children. Analyses based on structural equation modeling revealed that men whose fathers were absent when they were children were more likely to become absent fathers, and women whose fathers were absent when they were children were more likely to have children with absent partners. Indirect pathways between fathers' absence in 2 generations through aggression, education, and substance abuse were illustrated for women. These findings add to the literature suggesting that fathers' absence during childhood has intergenerational effects.     

现代激进主义文化思潮中的家庭重建——以《女铎》小说中的婚姻家庭观为视角

《女铎》是创刊于1912年,停刊于1951年的一份较有影响的妇女刊物。除了宣扬基督教义,还致力于提高妇女道德及普及新知识。《女铎》发表的小说多展示普通人日常生活中的温馨,所关涉的主题多为呈现于婚姻家庭中舍己的爱,这种爱又多是经历生活的艰难及双方的摩擦后而得的,因而显得愈发可贵。其中的女性常常不是软弱无力或哀怨愁苦,而是具有自尊自立自强的人格、直面人生困境的勇气以及对家庭邻舍的责任等美德。小说呈现出对女性生命价值的尊重,以及个体生命成长与贡献社会之间的平衡意识,揭示出新女性在个人与他者、感情与事业、社会与家庭等方面的调和努力,并本着建设的目的给出解决问题的答案,因而是对现代女性争取恋爱及婚姻自由之后道路的继续探索的体现。较之那些止于冲破旧家庭的新女性的塑造之作,无疑是一种深入;较之很多新文学作品中灰暗失败的新女性生活,也是一种积极的婚姻家庭模式的建造。     

论汉魏六朝仪式歌辞的文化功能与传播特点

仪式歌辞是为满足封建王朝各种仪式活动需要而创作音乐歌辞,因其满足仪式活动之需的特殊功能,内容上强调其与仪式活动符号象征的一致性,形式上多采用典雅的四言正格,在传播方式上呈现出程序性、依附性、组织性和共时性特点。仪式歌辞特殊的文化功能和传播特点决定了其传播效果的局限性,在传播范围的拓展性、传播时间的延续性方面均不能与娱乐歌辞相比,人们对仪式歌辞的接受,也主要是从其内容的“象征图式”和“意象结构”出发的,是否美听悦耳不是接受重点。     

基于家庭策略的贫困代际传递治理

家庭是贫困治理的社会基础,有效阻断贫困的代际传递是贫困治理的重要方式。基于家庭策略的视野,通过对两个贫困家庭在减贫过程中不同减贫方式的分析与比较,探讨家庭策略如何被自主运用来解决贫困问题。研究发现,“反馈模式”的代际关系下,多子女所带来的路径可选择性与关系灵活性让家庭有更大空间采用有效的家庭策略,以“代内合力”和“代际合力”为一部分子女的成长和发展提供更充分的资源及“资源变现”的空间与条件,从而为实现“家庭减贫”创造机会。在巩固脱贫成果和实现乡村振兴进程中,家庭作用的有效发挥能充分激发家庭自我发展的内生动力,从而实现脱贫致富。     

两组特殊标点符号的用法分析

为了防止或减少媒介因不当使用相关特殊标点符号而导致信息传播的质量下降，提高有关人员的写作或编辑质量，针对图书、期刊和报纸等出版物在使用标点符号“．”与“·”及“：”与“：”中出现的错误，利用典型例子，阐述了它们的常见用法，并对使用过程中易犯的一些错误进行了分析，提出了相关建议。     

Dynamics of the term structure of interest rates and monetary policy: is monetary policy effective during zero interest rate policy?

The monetary policy targets the short rates; however, during zero interest rate policy (ZIRP), the short end of the yield curve cannot serve as a policy instrument. Relying on the joint yields-macro latent factors model, this study empirically examines the effect of monetary policy stances on term structure and the possible feedback effect on the real sector using the Japanese experience of ZIRP. The analysis indicates that it is the entire term structure that transmits the policy shocks to the real economy rather than the yield spread only. The monetary policy signals pass through the yield curve level and slope factors to stimulate the economic activity. The curvature factor, besides reflecting the cyclical fluctuations of the economy, acts as a leading indicator for future inflation. In addition, policy influence tends to be low as the short end becomes segmented toward medium/long-term of the yield curve. Furthermore, volatility in bond markets is found to be asymmetrically affected by positive and negative shocks and long end tends to be less sensitive to stochastic shocks than the short maturities. The expectation hypothesis of the term structure does not hold during the ZIRP period.     

后现代语境下跨文化传播的“图像转向”——蔡志忠漫画中英文版《论语》的启示

《论语》在其产生后的两千多年历史中,对中国、亚洲乃至世界政治、经济、文化、社会等各个层面都产生了深刻的影响。《论语》在其复译过程中产生了逾四十本风格迥异的译本,其中蔡志忠漫画中英文版《论语》为经典阐释开辟了一条新的道路。蔡版《论语》把作为一本充满东方气韵的古代哲思语录《论语》从独一无二或少数人特权的局限中解放出来,使之成为兼具民族个性及大众欢迎的文化产品,引发出我们对跨文化传播的思考。     

民族政策宣传面临的新形势与应对策略

我国团结和谐的民族关系在不断巩固的同时,也面临着许多新情况、新问题,民族地区突发事件的频发度与危害的严重性呈上升趋势,网络和新闻媒体成为民族政策宣传和信息传播的重要渠道和平台,民族政策宣传已进入了国际传播的范畴,面临着新形势、新任务。因此,必须突破传统的宣传模式和理念,建立和创新行之有效的运行机制和保障机制,增强民族政策宣传的效果。