变质量非完整Vacco动力学系统的积分因子和守恒定理

提出了动力学系统守恒定律构成的一般途径。首先，给出运动微分方程积分因子的定义，详细地研究了守恒量存在的必要条件．其次，建立了变质量非完整Vacco动力学系统的守恒定理及其逆定理．最后，举例说明结果的应用。     

新闻舆论的社会责任及受众接受规律

新闻舆论具有凝聚人心、振奋精神、引领社会风气的重要影响，新闻舆论传播关系着社会舆论的指向．要对社会负责、对受众负责。研究新闻舆论担负的社会责任和受众接受新闻舆论引导的规律性，是为了使新闻舆论更为有的放失地进行宣传教育，避免宣传与接受脱节，也是为了进一步增强新闻宣传引导受众和教育受众的作用?     

论媒体批评的特征

媒体批评具有与传统文学批评不同的特征。首先,媒体批评的主体泛化,批评意图多元化;其次,媒体批评的批评对象是文坛新动向、有争议性的文学话题、能吸引大众注意力的文学热点、焦点问题等:最后,媒体批评的接受过程呈现出开放互动性。     

浅谈导学群的构建

远程开放教育的教学支持服务和质量监控一直是远程开放教育发展的制约"瓶颈",也是远程教育同仁在实践中着力解决的核心问题。"六位一体、五级联动"的导学群机制的构建,较好地解决了远程开放教育中教与学分离给远程教育带来的困难与矛盾,是一种新型的开放教育管理模式。     

我国竞技体育后备人才培养改革

通过对专家和竞技体育后备人才基地的调查，笔者认为，以加强体教结合为核心的体制创新是解决体育后备人才队伍不断萎缩的根本出路。因此．我们必须转变观念，清除阻碍竞技体育发展在认识上、体制上、机制上、制度上以及方法手段上的障碍，并根据各地的实际情况走创新之路。     

Student outcomes and perceptions of instructors' demands and support in online and traditional classrooms

In this study, seven graduate students were interviewed and 187 (91 online; 96 traditional) graduate students were surveyed about perceptions of differences in instructors' demands and support and student' motivation, self-regulation, satisfaction, and perceptions of learning in these environments. Results indicated significant differences in students' perceptions on all variables except self-efficacy. Results indicated a strong effect for differences between perceived instructor affective support in online and traditional classrooms. Although students in traditional classrooms ranked instructors' affective support higher, the variable had a stronger relationship with online students' satisfaction. Differences between online and traditional students' reports of instructors' academic support, instructors' demands, and students' satisfaction were significant with medium effect sizes. Results are important because they provide information about students' perceptions of the differences in environments created by instructors that relate to students' affective outcomes.     

试析当前大众生活类期刊的走势——以当前几种品牌期刊为例

当前大众生活类期刊以情感故事尤其是名人明星的婚恋故事为基本内容定位，以满足读者的娱乐猎奇心理，提高刊物发行量，在叙事方法上介于文学作品与新闻稿件之间，通过推出半月刊或创办子刊来占领不同读者群体，以青春靓丽的女性形象作封面，从内容到形式均体现出同质化倾向。这类期刊表面繁荣的背后潜藏着深重的危机。     

对数据仓库的认识

计算机技术的发展和各种新的需求，是数据仓库技术的产生的强大动力。数据仓库技术将从事事务处理的传统数据处理与具有分析特性的处理分离开来，使得数据仓库，结合数据库成为一个新的体系化环境。数据仓库，联机分析处理及数据挖掘构成了这一体系的三大技术，并且使得决策支持系统的真正实现成为可能。数据仓库和ＤＳＳ是密不可分的，利用了 ＤＷ技术的支持，企业的决策分析才更有真实的意义。     

Integrated MSS effects: An empirical health care investigation

Since accurate decisions are required for effective management, much research has focused on information systems that support decision making. Recently, this research has engendered frameworks, such as the management support system (MSS), that are designed to provide comprehensive and integrated support for the decision making process. Few, if any, studies have empirically measured the effects of these frameworks on decision making. This article offers empirical evidence on MSS effectiveness. It overviews the decision making process, presents an MSS for supporting the process, and assesses the influences of the MSS on the process and outcomes of health care decision making. The paper also examines the implications of the analyses for information systems research and health care practice.