金融结构对产业结构影响的时变特征研究——基于SUR和TVPSS模型的实证检验

金融结构与产业结构的关系一直是学术界的研究热点.文章利用中国1998—2017年的年度数据,构建似不相关回归模型从金融结构规模、效率及深化的角度分析金融结构对产业结构合理化和高级化的影响,建立时变参数状态空间模型描绘了金融结构对产业结构合理化和高级化的动态冲击.实证分析结果表明:金融结构规模提高产业结构合理化水平,促进了产业结构高级化;金融结构效率提高产业结构合理化水平,抑制了产业结构高级化;金融结构深化降低产业结构合理化水平,促进了产业结构高级化.金融结构规模、金融结构效率及金融结构深化对产业结构合理化和高级化的冲击均呈现出时变特征;金融结构对产业结构合理化的影响滞后于其对产业结构高级化的影响.金融结构对产业结构的冲击波幅呈现出前期波动大、后期较为平缓的状态,部分金融结构变量对产业结构的动态冲击呈现出"长尾"现象.当前的中国金融结构已经不适合当前的产业结构,需调整金融结构,以提升产业结构合理化水平和高级化水平.     

基于学生能力提高的混合式实验课教学模式研究

实验是理论课程的验证和深化,对提高学生知识和技能、创新和探索能力等方面有着不可替代的作用.在我国大力实施课程改革之际,结合先进的混合式教学理论与实践,对《城市广场规划设计》实验课教学模式改革进行探索,为提高学生能力、拓展思政教学手段、实施开放式教学提供理论基础.     

Subsampling-extrapolation bandwidth selection in bivariate kernel density estimation

This paper focuses on bivariate kernel density estimation that bridges the gap between univariate and multivariate applications. We propose a subsampling-extrapolation bandwidth matrix selector that improves the reliability of the conventional cross-validation method. The proposed procedure combines a U-statistic expression of the mean integrated squared error and asymptotic theory, and can be used in both cases of diagonal bandwidth matrix and unconstrained bandwidth matrix. In the subsampling stage, one takes advantage of the reduced variability of estimating the bandwidth matrix at a smaller subsample size m (m < n); in the extrapolation stage, a simple linear extrapolation is used to remove the incurred bias. Simulation studies reveal that the proposed method reduces the variability of the cross-validation method by about 50% and achieves an expected integrated squared error that is up to 30% smaller than that of the benchmark cross-validation. It shows comparable or improved performance compared to other competitors across six distributions in terms of the expected integrated squared error. We prove that the components of the selected bivariate bandwidth matrix have an asymptotic multivariate normal distribution, and also present the relative rate of convergence of the proposed bandwidth selector.     

A phenomenological case study on immigrant workers' gambling addiction in Korea

This study explores the experiences that have led some of Korea's immigrant workers into gambling addiction and examines possible social welfare services that could support treatment. Immigrant workers' gambling experience as aliens in Korea was analyzed through the methodology of a phenomenological case study. The participants, who voluntarily consented to the study, were five immigrant workers addicted to gambling. Data were collected through one‐on‐one, in‐depth interviews over 6 months, starting in July 2018. The essential themes that emerged in the interviews were “changing strategies for survival,” “forgetting oneself without any sense of responsibility or shame,” “gambling as routine daily life,” “obsession with making a fortune in one go,” and “no home to return to.” Based on its results, this study makes suggestions for the prevention of gambling addiction in immigrant workers. Further, future research needs to be broadened to analyze nationwide cases of immigrant workers with more diverse demographic backgrounds.     

论"斛兵塘""量兵塘""站塘"与魏晋屯田

合肥工业大学南校区内有一 口塘,在塘的西北角,合肥市人民政府立了一块石碑,说明塘的名称及其成因.碑文认为此塘名称为"斛兵塘",又称"量兵塘""站塘",是曹操大军南下时为"清点人马"所挖的"土坑".然而碑文存在失实之处,"斛兵塘"是曹魏当年屯田的水利设施,"量兵塘"应为"粮兵塘"之讹,"站塘"实为"占塘"之误.斛兵塘及其名称的变化反映了魏晋时期屯田的兴衰和国有土地演变为私有土地的过程.     

上海文化与科技融合发展调研报告

上海在文化与科技领域的重点企业和品牌影响力不断增强,在细分领域逐步构建了一批有标识度的新兴文化创意产品品牌矩阵.但关键技术领域有待突破,文化大数据体系有待建立,知识产权保护力度有待加强,行业审批周期有待缩短.应增强文化与科技领域的关键技术研发与品牌建设,强化对文化创意产品的知识产权保护,加快培育跨界多功能型高端人才,研究精准化的文化创意产品发展政策.     

论清华简与先秦时期的命论

清华简《命训》的命论与殷商以来的天命思想以及西周以德配天的思想是一致的,与先秦儒家命论也有相似之处,但《命训》的命论最终是为统治者服务的,这与儒家命论有根本差别.《心是谓中》的命论与前诸子时期"命定义"之"命"有相似之处,与儒家命论也是类似的,但其"身命"并不涉及道德观念,而儒家注重的就是道德观念.墨家的"非命"论否定了《命训》和《心是谓中》中的"大命"和"天命",而肯定了"小命"和"身命".《治邦之道》否定了关于治国方面的命定论,是对西周末年以来质疑神权政治思想的直接继承,这与孔孟的命论有所距离,而与荀子思想有相似之处,与墨家的"非命"论和黄老学、 法家的观点都是一致的.庄子的顺命观则与三者均不同.这三篇文献的共同点在于强调人可以改变命,体现了战国精神.     

Reviews of Academic English Listening Tests for Non-Native Speakers

This article presents a review of 20 tests designed for assessing the academic English listening skill of second or foreign language learners. The available test information has been systematically condensed in purpose, listening construct, task characteristics, and validity evidence. It was found that most of the tests were developed for proficiency and placement purposes in academic contexts, with few of the tests serving for making workplace decisions. Also, global, local, and inferential skills constitute the construct in most listening comprehension tests. A practical approach for justifying the uses of these tests for different stakeholders is discussed. This review is a valuable resource for educators, administrators, test developers, and researchers looking for a comprehensive analysis of existing English tests that assess listening comprehension in second or foreign language learners.     

A Qualitative Case Study on Recovery and Personal Growth in Korean Drug Addicts

ABSTRACT

In recent years, crimes related to drug smuggling and production have gradually increased in Korea. This qualitative case study explores the experiences of Koreans recovering from drug addiction and identifies specific details and mechanisms of recovery. For this purpose, participants were selected based on criteria such as engaging in social activities after recovery from addiction for 3 years or more. Next, one-on-one in-depth interviews were conducted with five voluntarily consenting participants. Data were analyzed using the within-/cross-case analysis suggested by Creswell. Substantial personal growth took place in the recovery process for drug addicts. Nineteen themes were identified as manifestations of personal growth through within-case analysis. Four common themes were then derived through cross-case analysis. These four common themes were “reconnection with reality,” “embracing the essence of one's own existence,” “reconstructing oneself in social relations,” and “self-love.” The study's results suggest that a recovery program needs to be developed wherein the program not only enables drug addicts to reflect on their current existence but also allows them to develop their specific coping skills. Future research should be broadened to consider the social support mechanism and viewpoints of people including family and local community members in close contact with drug addicts.     

习近平总书记关于扶贫工作重要论述研究

贫困之音历来萦绕在人们心间,实现脱贫是世界各国人民心心念念、期盼已久的愿望.习近平总书记在青年时期就已经关注到我国现实中的贫困问题,执政以来他多次深入到贫困地区亲自了解贫困人民的生活情况,并在此基础上做出了一系列非常重要的论述.这些关于扶贫工作的论述是在坚持了马克思主义一切从实际出发、理论联系实际,发展是前进性和曲折性的统一,以及密切联系群众的方法论原则基础上,所做出的具有科学性和创新性的而且内涵丰富的论述,有着重要的意义和价值.