“时空修复”理论的系统建构与视野局限

大卫·哈维是当代英美新马克思主义空间理论的代表人物,他从历史唯物主义空间理论的视角出发,通过实证分析与马克思主义的批判解读对“时空修复”理论进行了研究,阐释了时间推移与空间扩张、地理重组是当代资本主义处理过度积累和经济危机的重要方式。“时空修复”理论有着深刻的当代价值,为我们分析全球化时代的世界局势和中国发展道路提供了重要的参考与借鉴,但同时它也具有一定的理论局限性。     

Gender inequality in culture industries: Women and men writers in film and television

This article discusses how employment practices concerning writers of film and television contribute to gender inequality and the glass ceiling in Hollywood. Relying on historical evidence about the industries of film and television and quantitative data from analyses of the employment and membership records of the Writers Guild of America, West, the union for film and television writers in Hollywood, this article presents an overview of the industry's historical transformation from hierarchy to market in order to understand the nature of Hollywood's employment relation. It then examines how the dynamics associated with the participation of women writers contribute to particular forms of gender inequality in film and television. The conclusion considers why proven remedies for minimizing gender inequality are so difficult to achieve in the culture industry of Hollywood.     

Mixture Kalman filters

In treating dynamic systems, sequential Monte Carlo methods use discrete samples to represent a complicated probability distribution and use rejection sampling, importance sampling and weighted resampling to complete the on-line 'filtering' task. We propose a special sequential Monte Carlo method, the mixture Kalman filter, which uses a random mixture of the Gaussian distributions to approximate a target distribution. It is designed for on-line estimation and prediction of conditional and partial conditional dynamic linear models, which are themselves a class of widely used non-linear systems and also serve to approximate many others. Compared with a few available filtering methods including Monte Carlo methods, the gain in efficiency that is provided by the mixture Kalman filter can be very substantial. Another contribution of the paper is the formulation of many non-linear systems into conditional or partial conditional linear form, to which the mixture Kalman filter can be applied. Examples in target tracking and digital communications are given to demonstrate the procedures proposed.     

论《诗选刊》(1984—1987)的编辑艺术

《诗选刊》(1984-1987)既是新诗史料重要的组成部分,也是文学刊物史值得研究的对象。在短短四年时间,《诗选刊》席卷中国诗坛,成为诗人瞩目的焦点。《诗选刊》构建了有力的诗歌场,并体现出两大艺术特点:一是宽视野,选材无门派、国别、地域、身份之壁垒;二是厚内涵,刊物体现出敏锐的栏目意识以及编辑精准的角色定位,使得刊物迅速被业内认可。     

互联网视域下高校思政教育的改进路径

文章论述了互联网时代下高校思政教育面临的挑战提出了改进路径。     

How to Maintain High Retention Rates in Long-Term Research on Addiction: A Case Report

High dropout rates threaten the validity of longitudinal studies involving participants suffering from substance use disorder (SUD). The objective of this article is to evaluate strategies to improve retention. The data analysis was based on an ongoing study of long-term recovery of neurocognitive and psychosocial functions. We used traditional strategies to enhance the contact rate. Common factors in psychosocial treatments and biweekly Short Message Service (SMS; text messaging) monitoring were added to further increase the contact rate. The participants (n = 146) were recruited from treatment facilities for SUD. Assessments were measured at 3 months, 6 months, 9 months, and 12 months. This study was successful in retaining a cohort of participants who are typically characterized as having a negative prognosis because of their unstable living arrangements and incomes. Compared to those using GHB, addictive medications, and opiates, the retention rate was the lowest among participants with severe alcohol use disorder (42%).     

大学的公共性与我国大学的共同治理

公共性是包含公益性、公开性、平等性、共享性等含义于一体的复杂概念.现代大学是具有高度公共性的典型领域或机构.构建现代大学治理体系,必须建立一种体现大学公共性本质要求的共同治理结构;以发展参与式民主作为大学共同治理改革的突破口,以政府职能的改革为先导,以大学章程的贯彻落实为起点,以法治理念重构大学与政府、大学与社会、大学与市场的关系;在大学治理的价值理念、制度设计、立法保障上体现大学公共性的内在要求.     

国际碳信息披露十年回顾与展望

碳信息披露是外部利益关系人了解企业碳管理绩效的重要方式.为了探索碳信息披露的规律,文章总结了碳信息披露项目（CDP）2003至2012十年间在促进碳信息披露方面的发展历程,对碳信息披露现状进行了分析,并就碳信息披露的未来发展进行了展望.     

学术期刊编辑应具有敏锐的学术眼光

作为学术期刊的编辑人员,担当着提高和提升期刊编辑质量的重要职责和责任,期刊质量的高低与编辑个人自身的素质有着密切关联。编辑人员是期刊编辑活动全过程的直接责任人,对保证和维护期刊质量起着极其重要的作用。编辑学术期刊的选稿、定稿需要编辑人员具有较高的学术意识,对审稿更应具备敏锐的学术眼光,对学术论文的编辑加工更离不开学术眼光。学术期刊编辑必须具备学术鉴赏力、学术判断的知识力,学术期刊的编辑人员应从提高学术素养、掌握学术动态、强化责任意识等方面来培养编辑人员敏锐的学术眼光。     

基于差分和肤色图像的人脸检测算法

提出并实现了一种基于差分和肤色图像的人脸检测算法。该算法利用视频图像的运动信息,在帧间差分的基础上进行二值图像边缘提取,确定目标在原图像中坐标位置,然后设计肤色模型表征人脸颜色,采用彩色图像的色系坐标变换进行人脸的准确定位。该算法的优点是可将运动信息序列图像中与人脸肤色相似的固定区域删除,在目标跟踪和运动检测上,不仅能有效地抑止背景噪声,减少误检率,而且还能缩小人脸检测范围,加快检测速度。实验表明,该算法可行、有效。