我国经济增长的动力分析

在众多因素的共同作用下,我国经济保持了高速增长的态势.为分析出口和投资对经济增长的推动效应,本文以开放经济为背景,通过构建计量经济模型,采用协整分析方法和1999-2007年的实际数据,分析了出口和投资(外来直接投资、国内固定资产投资)对经济增长的推动效应.实证研究表明,我国经济增长的主要动力来自于出口和国内固定资产投资.以科学发展观为理论视角,本文提出扩大国内消费、优化出口商品结构、充分利用内资和有选择引进外资,进而推动我国经济健康发展的建议.     

Need-service matching in substance abuse treatment: Racial/ethnic differences

This study examines the impact of ancillary health and social services matched to client needs in substance abuse treatment for African Americans, Latinos and Whites. The study uses data collected from 1992 to 1997 for the National Treatment Improvement Evaluation Study, a prospective cohort study of substance abuse treatment programs and their clients. The analytic sample consists of 3142 clients (1812 African Americans, 486 Latinos, 844 Whites) from 59 treatment facilities. Results show that racial/ethnic minorities are underserved compared to Whites in the substance abuse service system. Different racial/ethnic groups come into treatment with distinct needs and receive distinct services. Although groups respond differentially to service types, substance abuse counseling and matching services to needs is an effective strategy both for retaining clients in treatment and for reducing post-treatment substance use for African Americans and Whites. Receipt of access services was related to reduced post-treatment substance use for Latinos. Study findings are relevant to planning special services for African Americans and Latinos.     

从中国文化对外传播力看“中国梦”的实现路径

从历史上看,中国古代文化以其所具有的独特魅力在世界文化史上发挥着举足轻重的作用,引起世界的广泛关注;近代以来,由于种种原因,中国文化的传播力失去了往日的辉煌。中国文化对外传播的辉煌和低迷给我们以启示:文化传播力与综合国力成正比,综合国力强,则文化传播力强,反之亦然。当下中国综合国力显著提升,"中国梦"正在成为中国的一个新标识,我们要抓住机遇,通过提高中国文化的对外传播力,让世界更好地了解中国,助推"中国梦"的实现。     

Stream restoration in Andean cities: learning from contrasting restoration approaches

Urban Ecosystems - The Andes region is one of the fastest urbanizing regions of the world. The current rate of environmental degradation of streams in this region create an urgent need for...     

高校青年教师离职问题思考

青年教师是高校教学工作未来的核心力量,由于自身特点和诸多外界因素,离职率一直居高不下,对学校正常教学、科研活动的开展带来了比较大的负面影响。本文对高校青年教师离职原因进行了分析,并提出了解决这个问题的思路。     

构建提升校园文化品位的牵引机制

高校校园文化建设是社会文化建设的重要组成部分,如何提升校园文化品位，更好地为高校和社会服务，是摆在我们面前的迫切问题。本文着眼于校园文化品位的提高，在大量工作实践的基础上，从审美、互动、窗口、学风等方面探求提升校园文化品位的牵引机制，以助于实现校园文化建设向更高水平迈进的目标。     

Sample size estimation for comparing rates of change in K-group repeated count outcomes

Sample size estimation for comparing the rates of change in two-arm repeated measurements has been investigated by many investigators. In contrast, the literature has paid relatively less attention to sample size estimation for studies with multi-arm repeated measurements where the design and data analysis can be more complex than two-arm trials. For continuous outcomes, Jung and Ahn (2004 Jung, S., Ahn, C. (2004). K-sample test and sample size calculation for comparing slopes in data with repeated measurements. Biometrical J. 46(5):554–564.[Crossref], [Web of Science ®] , [Google Scholar]) and Zhang and Ahn (2013 Zhang, S., Ahn, C. (2013). Sample size calculation for comparing time-averaged responses in k-group repeated measurement studies. Comput. Stat. Data Anal. 58:283–291.[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]) have presented sample size formulas to compare the rates of change and time-averaged responses in multi-arm trials, using the generalized estimating equation (GEE) approach. To our knowledge, there has been no corresponding development for multi-arm trials with count outcomes. We present a sample size formula for comparing the rates of change in multi-arm repeated count outcomes using the GEE approach that accommodates various correlation structures, missing data patterns, and unbalanced designs. We conduct simulation studies to assess the performance of the proposed sample size formula under a wide range of designing configurations. Simulation results suggest that empirical type I error and power are maintained close to their nominal levels. The proposed method is illustrated using an epileptic clinical trial example.     

Affective capitalism,humanitarianism and extractivism in Colombia: old and new borders for future times

Contemporary Colombian conjuncture encompasses two dynamics. These incorporate social, economic, political and cultural aspects, whose related rationalities are yet to be mapped out and understood in their complex and multi-layered dimensions and registers. On the one hand, as I will explain throughout the text, we have been witness to on-going peace talks between the government and the Fuerzas Armadas Revolucionarias de Colombia guerrilla group, a whole set of practices of forgiveness, inaugurations of memory museums, the passing of the victims and land restitution law, as well as the recognition of victims and the effervescence of their movements and organizations. These factors have spiralled victims’ demonstrations and fuelled marches all over the country. On the other hand, there are increased rates of foreign investment in those regions that, until as little as a decade ago, were subject to appalling rates of internal displacement, massacres and disappearances, and which now constitute new borders where global capitalism has been able to reconfigure and increase its rates of capital accumulation. In this article, I analyse the processes referred to above and their complex relationships from the vantage point of a cultural studies interrogation of the affective and the popular, focusing on two Colombian regions: Montes de María and Mapiripán. My goal is to understand how different groups and actors are experiencing these processes in their everyday lives. Here, I include victims and their organizations but also government officials and entrepreneurs related to agro-industry initiatives – mentioned below – today refashioned within the new mantra of corporate responsibility. I want to understand the issue of where people are located and what they are doing, facing, consuming, or resisting in terms of these new challenges. Finally, I wish to offer an analytical study that can capture the everyday textures of these processes in a complex and concrete fashion.     

Digital media,subcultural activity and youth participation: the cases of protest rap and graffiti in Portugal

Over the last decade, we have witnessed the emergence of an academic debate surrounding the relationship between youth and the ‘new media’, with a particular emphasis on the social uses of different digital technologies within the sphere of youth activity. A specific area of research has been dedicated to studying the use of digital media in the context of the so-called youth subcultures. With this article we expect to contribute to this ongoing debate, by examining the problem through an analysis of two interconnected case studies: protest rap and illegal graffiti. Both cases may be defined as subcultures, insofar as they are characterized as alternative, subterranean, and to a certain extent, subversive movements. The empirical ground for this discussion is based on several investigations, with a qualitative basis, carried out by the authors in the course of over a decade in Portugal. This extended time frame allowed ample access to a diversified and matured analytical material and enabled a better perspective of the developments and the mutations involving the appropriation of the digital media. Our researches have shown that digital media and technologies have been gradually integrated in these urban youth subcultures, accomplishing several strategic roles.