《野草在歌唱》中的空间观

本文探索小说从弱势群体的生仔空间为视角反映殖民和父权制对非洲大陆的影响。     

危机事件中的网络视频传播与话语分析

随着网络视频的兴起,网络传播进入视频时代：对央视网和优酷网“甲型H1N1流感”议题的网络视频进行对比研究发现,在视频节目来源、话语平台的影响力和话语影响力以及话语呈现和对话机制方面,网络视频官方话语与民间话语的呈现都存在显著差异和一定规律。更为重要的是,网络视频传播在危机事件中的作用日益显著。     

“现代性”议程与文化“公共空间”的衍变轨辙

由于"现代性"在中国仍是未完成设计的议程,因此用"公共空间"表述哈贝马斯的"公共领域"概念,似乎更切题旨.自晚清以来,中国的文化"公共空间"以现代大众媒体、物质性的公共构造以及具体的公共文化事件,共同见证了中国"现代性"进程.而1990年以来对"现代性"的反思,则直接引发了当代文化公共空间的裂变.     

自由与责任:网络空间伦理诉求及其实现策略

习近平在世界互联网大会上的主旨讲话中指出,互联网把世界变成了“鸡犬相闻”的地球村,改变着人们的生产生活,有力推动了社会发展;同时,他又指出,网络空间不是“法外之地”,并明确提出了加强网络空间治理、规范网络空间行为等要求.网络的虚拟性、开放性和交互性,既给人们提供了自由的空间和舞台,又对人们的道德要求和责任担当提出了更高的要求.行为主体网络信息的自由表达有其必要的边界和限度,网络行为中的责任担当对规范网络空间和现实社会的有序发展存在着积极的应然价值,自由与责任构建了网络空间最基本的伦理诉求.     

微空间主流意识形态边缘化危机及消解策略

微空间的主体多样性、信息碎片化、文化多元性为各种思想观念、价值理念的传播提供了平台,对微空间主流意识形态的主导性形成挑战、权威性产生冲击、理论性带来消解,导致主流意识形态出现边缘化危机.要克服微空间中淡化意识形态思潮渗透、主流意识形态“失语”、传播信息整合能力弱化的影响,必须增强微空间主流意识形态的主导向心力和辐射凝聚力意识,通过更新话语体系提升微空间主流意识形态的话语效力,强化人文关怀改进微空间主流意识形态的话语方式,重视培养微空间主流意识形态队伍的媒介素养与隐性传播方式的运用,建立和完善微空间信息评估反馈监管机制,加强主流意识形态对微空间信息的整合力度,以消解微空间主流意识形态边缘化危机.     

Youth studies,citizenship and transitions: towards a new research agenda

A key goal in youth studies is to gain holistic understandings of what it means to be young. However, a significant impediment to achieving this has been the tendency of youth studies to develop along siloed and stratified subfields. In keeping with the goal of creating more productive dialogue between subfields in youth studies, this paper examines the intersections between research in youth citizenship and youth transitions to consider the fresh insights and cross fertilisations that such an analysis may yield. This examination reveals a sense of dissatisfaction in both subfields with traditional normative and linear models of citizenship and transitions which rely on step-wise and sequential notions of time. In response, the paper advances a new research agenda which posits more temporally, spatially and relationally-sensitive understandings of youth citizenship and transition. Drawing on Ingold (2007. Lines: A brief history. London: Routledge), this agenda proposes the use of three alternative metaphors – genealogical, wayfaring and threads – which could hold the potential to unsettle the normativity and linearity of previous youth transitions and citizenship frameworks, and thus provide deeper insights into what it means to live and to be young citizens in times of transition.     

Estimation and Inference Procedures for Semiparametric Distribution Models with Varying Linear‐Index

More flexible semiparametric linear‐index regression models are proposed to describe the conditional distribution. Such a model formulation captures varying effects of covariates over the support of a response variable in distribution, offers an alternative perspective on dimension reduction and covers a lot of widely used parametric and semiparameteric regression models. A feasible pseudo likelihood approach, accompanied with a simple and easily implemented algorithm, is further developed for the mixed case with both varying and invariant coefficients. By justifying some theoretical properties on Banach spaces, the uniform consistency and asymptotic Gaussian process of the proposed estimator are also established in this article. In addition, under the monotonicity of distribution in linear‐index, we develop an alternative approach based on maximizing a varying accuracy measure. By virtue of the asymptotic recursion relation for the estimators, some of the achievements in this direction include showing the convergence of the iterative computation procedure and establishing the large sample properties of the resulting estimator. It is noticeable that our theoretical framework is very helpful in constructing confidence bands for the parameters of interest and tests for the hypotheses of various qualitative structures in distribution. Generally, the developed estimation and inference procedures perform quite satisfactorily in the conducted simulations and are demonstrated to be useful in reanalysing data from the Boston house price study and the World Values Survey.     

Convergence rate of wavelet density estimator with data missing randomly when covariables are present

In this article, we study global L₂ error of non linear wavelet estimator of density in the Besov space B^s_pq for missing data model when covariables are present and prove that the estimator can achieve the optimal rate of convergence, which is similar to the result studied by Donoho et al. (1996) Donoho, D.L., Johnstone, I.M., Kerkyacharian, G., Picard, D. (1996). Density estimation by wavelet thresholding. Ann. Stat. 24:508–539.[Crossref], [Web of Science ®] , [Google Scholar] in complete independent data case with term-by-term thresholding of the empirical wavelet coefficients. Finite-sample behavior of the proposed estimator is explored via simulations.     

“空间、空间生产”五问——对张之沧教授几个观点的质疑

既然空间是物质的存在方式,它就不可能具有主观性、意识性,也不可能是精神的存在方式。先在的、外在于人类实践的自然空间不可能是人创造的。我们在改造自然的同时,也改变了自然事物的原有空间形式,新的空间形式是适合于人类生活的。但我们不能创造物质本身,只能改变物质的具体形态,因而,我们也不能创造空间本身,只能创造具体事物的空间形式。社会存在是物质的高级存在方式,社会存在的空间形式可以称之为社会空间。但"社会空间"不表示这种空间具有社会性。社会存在包含着自然存在,不是自然存在的存在是非存在。社会空间实际上是社会存在的自然物质基础具有的空间形式。空间是物质的自然属性而非社会属性,"社会空间"不具有社会性。空间的生产只是生产的一个方面,不能用"空间生产"的概念代替"物质生活资料的生产"和"生产方式"的概念,应当从生产方式来理解人类历史和帝国主义、霸权主义在空间上的扩张、争夺。     

网络舆情:城市公共安全危机的新症候

作为对现实中的社情民意的复制、重构与超越的网络舆情,作为由民生构成“主体”,民意与民主构成“两翼”的网络舆情,其瞬时到达、瞬间爆发的爆破力越来越触动着城市政府的公共安全神经,越来越幻化为城市公共安全危机的新症侯.城市政府必须超越治理它的认识危机、“他者”化和“硬引导”等问题域,走向科学化、理性化的方法论,即高度重视网络舆情,设置舆情“防火墙”,发挥“主场优势”,确保地方网络成为舆情引导的最短路径,建立“巧引导”范式,形成引导的“网上网下统一战线”,制度化标志性的长效机制等.