异质性产业集聚对城市创新发展能力的影响

城市创新圈是创新要素的高聚集、高密度的创新系统。本研究尝试将产业集聚和数字经济同时纳入城市创新发展能力的分析框架,基于中国2005—2020年262个地级市面板数据,通过理论分析与GMM模型实证检验相结合,讨论产业集聚对城市创新发展能力的影响。主要结论如下：产业集聚均对城市创新有着正向的促进作用,并且促进效果顺序是制造业集聚大于协同集聚,生产性服务业集聚排在最后。异质性检验表明,在产业集聚对城市创新的影响中,南方地区城市均表现显著的促进作用,北方地区城市则只有制造业集聚对城市创新存在显著的促进作用。数字经济只在制造业集聚对城市创新的促进作用中发挥正向调节作用,在生产性服务业集聚和协同集聚对城市创新的影响中均发挥出负向调节作用。     

关于何其芳的文稿修改——以诗集《夜歌》和论文《关于现实主义·序》为例

何其芳整理重版自己的旧稿,尤其是1940年代在延安、重庆时的诗文时,有较多的删、改、增。本文以诗集《夜歌》和长篇论文《关于现实主义.序》为例,说明何其芳作品不同版本的修改情形,从而在一个特殊角度折射社会政治形势、时代思潮的变动与作家的创作、文化心态之间的互动关系。     

李清照与朱淑真词接受差异论析

李清照和朱淑真是宋代两位最著名的女词人,她们以卓越的创作成就深远地影响了后世文学,为历代读者广泛接受.综观李清照和朱淑真的被接受历史,她们所表现出来的接受差异主要可概括为三个方面:一是接受历程的不同;二是情感认同的差异;三是接受模式的区别.通过考察和分析李清照和朱淑真词的接受差异,能更加深刻地洞悉李清照和朱淑真词的美学特征、文化内涵和历史价值.     

关于民事主体的内涵与外延的立法思考

民事主体制度,是民法理论和立法实践中的重要内容,特别是我国这样的成文法国家,民事主体的立法是关乎整个民法体系的建构和市场经济发展的重要环节。在自然人和法人当然和已然地成为民事主体的内核之情况下,文章对民事主体的内涵和外延在新的历史条件和时代环境下作出新的解释,特别就经济关系和生活关系中大量存在的“非法人团体”是否应该成为“第三主体”作出思考。     

高校学生管理法治化的思考

目前在高等学校的学生管理中,存在着不少侵犯学生权利的法律问题,论文从依法治教的角度分析了我国高等学校的法律依据和行为性质、高校学生管理的现状和存在的主要法律问题、高校学生合法权益的法律保护等问题,这些都是现阶段我国高等教育面临的实际问题。     

全连接世界的融传播

智媒体技术为各种传播形态的信息提供了“全连接”的技术支撑,人类社会自此从有信息传播边界的传统媒体时代的人际传播、群体传播、组织传播的社会生活场域,进入到信息传播边界消逝后的全连接世界。在互联网场域,信息从人际传播到群体传播再到大众传播,为此从媒介环境学角度提出“融传播”概念,分析智能媒体时代熟人社交的失控,无边界控制的赛博空间对人的多元身份确认的困惑,智媒技术对人的“监控”等对人类社会生活产生的诸多影响,并反思拟真世界中的人际沟通。     

Pathways from workplace flexibility to turnover intention: Role of work–family conflict,family–work conflict,and job satisfaction

This study examined the prevalence of workplace flexibility and the mechanisms that allow workplace flexibility to influence turnover intentions through work–family and family–work conflicts and job satisfaction among low‐wage workers in South Korea. Participants included 250 low‐wage workers whose monthly salary was less than 2 million Korean won (approx. $1,900). The study results indicate that low‐wage workers have limited access to workplace flexibility and that workplace flexibility plays a significant protective role in reducing their turnover intention, indirectly by decreasing work–family conflicts and enhancing job satisfaction. This article also discusses the implications of these findings for labor policy and social work practice.     

The 2015 welfare reform of the National Basic Livelihood Security System in South Korea: Effects on economic outcomes

In July 2015, South Korea’s National Basic Livelihood Security System (NBLSS) was reformed for the purposes of eliminating welfare blind spots and reducing poverty. The reform is expected to affect the recipients’ economic behaviours and choices. In this study, we used changes in benefits and eligibility for the NBLSS under the customised benefit system to identify the effects of the change in the NBLSS on a proposed set of economic outcomes – income, labour supply, consumption, savings, poverty reduction. To estimate the effects, we used data from the 10th–12th waves of the Korea Welfare Panel Study and employed a difference‐in‐differences framework integrated with the propensity scores. We found that the NBLSS helps the poor to reduce financial and material hardships through income and consumption increments, but that it does not provide disincentives to the recipients from participating in the labour market or from saving.     

Quantifying the similarity of 2D images using edge pixels: an application to the forensic comparison of footwear impressions

We propose a novel method to quantify the similarity between an impression (Q) from an unknown source and a test impression (K) from a known source. Using the property of geometrical congruence in the impressions, the degree of correspondence is quantified using ideas from graph theory and maximum clique (MC). The algorithm uses the x and y coordinates of the edges in the images as the data. We focus on local areas in Q and the corresponding regions in K and extract features for comparison. Using pairs of images with known origin, we train a random forest to classify pairs into mates and non-mates. We collected impressions from 60 pairs of shoes of the same brand and model, worn over six months. Using a different set of very similar shoes, we evaluated the performance of the algorithm in terms of the accuracy with which it correctly classified images into source classes. Using classification error rates and ROC curves, we compare the proposed method to other algorithms in the literature and show that for these data, our method shows good classification performance relative to other methods. The algorithm can be implemented with the R package shoeprintr.     

中学英语教学培养学生语感研究

语感意即学习者多方位接触某种语言及其相关文化而产生的一种规律性的感觉.语感能力作为重要能力结构因素贯穿于中学阶段,其影响作用日益增强.中学英语教学要从听说、读、写等三个环节,持之以恒地将语感训练和语感能力的培养贯穿于英语教学的每个环节,采用多种方法和途径,引导学生在一切语言交际中有意识地去感受语感、把握语感、实践语感.