松辽流域水能资源可持续开发利用战略研究

松辽流域是中国三大流域之一,水能资源丰富,而当前流域内水能资源开发利用中还存在诸如缺乏长远规划、建设资金不足等瓶颈,要实现可持续开发利用松辽流域水能资源是可持续发展战略的重要组成部分,利用流域水能资源可持续开发利用的评价标准和方法反映不同地区可持续发展程度和协调性,采取适当的开发利用战略和对策,实现松辽流域水能资源的可持续开发。     

视界变革：从知识论与价值论美学的逻辑论起

知识论与价值论美学认为,美学研究的视界规定着美学的研究方式、成果形态和内在观念的变革.因此,转换美学的研究视界,意味着美学研究逻辑起点的变革,它主要产生三个方面的重要影响:一是对现有美学资源给予合理的结构性配置;二是促成美学知识形态的话语拓展;三是以现实性和实践性景象实现美学界限的根本突破,对人类审美文明具有重要意义.     

新中国农村四荒地资源产权运作的历史变迁

资源匮乏,人均占有资源严重不足是我国的基本国情。然而大量的四荒地资源又不能得到充分的开发利用。怎样促进四荒地资源的开发利用,是理论和实践中一个重要的经济问题。本文从农村四荒地资源产权运作的历史变迁入手,分别对三年改造时期、合作社时期、人民公社时期及改革以来农村四荒地资源的产权安排及其变迁进行了描述与评价,进而得出结论,旨在对实践中不断高涨的四荒地资源开发利用有一定的借鉴意义。     

EFFECTS OF INTERNET USE AND SOCIAL RESOURCES ON CHANGES IN DEPRESSION

We examine how people's different uses of the Internet predict their later scores on a standard measure of depression, and how their existing social resources moderate these effects. In a longitudinal US survey conducted in 2001 and 2002, almost all respondents reported using the Internet for information, and entertainment and escape; these uses of the Internet had no impact on changes in respondents' level of depression. Almost all respondents also used the Internet for communicating with friends and family, and they showed lower depression scores six months later. Only about 20 percent of this sample reported using the Internet to meet new people and talk in online groups. Doing so changed their depression scores depending on their initial levels of social support. Those having high or medium levels of social support showed higher depression scores; those with low levels of social support did not experience these increases in depression. Our results suggest that individual differences in social resources and people's choices of how they use the Internet may account for the different outcomes reported in the literature.     

积极进行教学资源建设全面推进教学改革

结合国家教学基地建设,西南交通大学以力学课程体系、教学内容、教学方法、教学手段的改革为主线,以培养工科创新型人才和提高教学质量为目标,构建了先进的立体化教学资源和教学平台,在课程教学与实验教学的改革、师资队伍建设、教学环境建设等方面取得了一系列成果,在全国,特别是西南地区,起到了很好的示范与辐射作用     

烟台市水资源承载力变化的驱动力研究

阐述了水资源承载力的概念、特性及影响因素,根据烟台市各县区的统计资料,分析了烟台市自上个世纪80年代以来水资源承载力变化的总体趋势和驱动因子。结果表明:人口、社会固定资产投资和GDP是影响烟台市水资源承载力变化的主要驱动因素。通过多元线性回归模型,预测出了2005和2015年的水资源量,并进一步预测了该市的需水量和缺水量。     

Communicating Global Activism

Many observers doubt the capacity of digital media to change the political game. The rise of a transnational activism that is aimed beyond states and directly at corporations, trade and development regimes offers a fruitful area for understanding how communication practices can help create a new politics. The Internet is implicated in the new global activism far beyond merely reducing the costs of communication, or transcending the geographical and temporal barriers associated with other communication media. Various uses of the Internet and digital media facilitate the loosely structured networks, the weak identity ties, and the patterns of issue and demonstration organizing that define a new global protest politics. Analysis of various cases shows how digital network configurations can facilitate: permanent campaigns; the growth of broad networks despite relatively weak social identity and ideology ties; transformation of individual member organizations and whole networks; and the capacity to communicate messages from desktops to television screens. The same qualities that make these communication-based politics durable also make them vulnerable to problems of control, decision-making and collective identity.     

论国际互联网对旅行社业的冲击

进入 2 1世纪以后 ,旅游越来越被普通老百姓所接受 ,旅行社作为旅游业的三大支柱之一 ,前景光明。但随着国际互联网的出现和广泛使用 ,给传统旅行社带来了巨大威胁。本文在详细论述互联网给旅行社带来冲击的基础上 ,指出在互联网影响下旅行社存在发展的机遇 ,提出旅行社生存发展的具体对策。     

Health Information Seals of Approval: What do they Signify?

Much of the health information available to consumers on the Internet is incomplete, out of date and even inaccurate. Seals of approval or trustmarks have been suggested as a strategy to assist consumers in identifying high-quality information. Little is known, however, about how consumers interpret such seals. This study addresses this issue by examining assumptions about the quality criteria that are reflected by a seal of approval. This question is of particular importance because a wide variety of quality criteria have been suggested for online health information, including: core aspects of quality such as accuracy, currency and completeness; proxy indicators of quality such as the disclosure of commercial interests; and indicators that reflect the quality of the site or the interaction it affords, such as the availability of a search mechanism. The results of this study suggest that seals of approval are assumed to certify information quality primarily with respect to core quality indicators, aspects that subjects both consider to be important and feel relatively less able to evaluate for themselves (compared with their ability to rate proxy indicators of information or indicators of site or interaction quality). This assumption is largely inconsistent with practice: most seals of approval involve assessment of proxy indicators of information quality, rather than direct assessment of content. These results identify a problem that certification or accreditation bodies must address since, unless and until consumer expectations are congruent with evaluation practice, seals of approval will seem to promise more than they deliver.