训练及类固醇药物对动物骨、肌肉肌腱和韧带生物力学特性的影响

本实验对训练动物予以类固醇药物,发现其肌力增强,但工作时间缩短,肌肉断裂强度和能量吸收无改变。胫骨、跟腱、屈趾肌腱和膝内侧副韧带的某些生物力学特性受到不同程度的影响,使其在激烈运动中易于受伤。     

浅析出版集团的体制创新

进行体制创新,成为真正的市场竞争主体,是当前我国出版集团的一项急迫的基础性的任务。在实际的运作中,出版集团体制创新主要有有限责任公司模式、国有独资公司模式和股份有限公司模式。通过模式分析,作者认为出版集团体制创新的核心是产权清晰,其关键是进行法人治理、结构改革,其路径是进行母子公司体制改革。     

Social Perceptions of Students with Learning Disabilities Who Differ in Social Status

As a group, students with learning disabilities (LD) have social difficulties. One possible explanation for these difficulties is the unique way they process social information. Although students with LD may differ from their nondisabled peers in their social cognition, investigators have suggested the presence of subgroups within the population of students with LD who may differ in their social competence and, thereby, shed light on the source of the difficulties. The present exploratory study examined how two subgroups of students with LD in inclusive settings, students with high and low social status, perceive social situations. Using a sociometric technique, three students with LD receiving high social‐status ratings and three students with LD receiving low social‐status ratings were identified. A qualitative approach was used to gather and evaluate data from the participants and their teachers. Results suggested differences between the two subgroups in their (1) sensitivity to cues in the environment, (2) interpretation of social situations in relation to their own experiences, and (3) levels of self‐control. Implications of these findings for practice and future research are discussed.     

Adapting Adaptive Testing: Using the MicroCAT Testing System in a Local School District

What is the rationale for adapting an existing testing system instead of developing your own? What are the limitations of MicroCAT? What has to be modified in order to meet local needs and to realize the potential of adaptive testing in the context of an existing testing system?     

数字图像水印技术研究

介绍了数字图像水印技术的原理、主要特征,阐述了目前图像水印信号的产生方法,分析了图像水印技术的处理算法,探讨了图像水印技术面临的挑战及其发展趋势。     

田径健身内容在社区体育中运用的研究

运用访谈、问卷等方法，研究田径健身内容在社区体育中的运用情况，发现田径健身内容以其独特的个性特点和健身价值，在社区这个特定的环境倍受人们喜欢。建议社区居民注重学习和掌握新兴的运动项目，进而提高健身意识。     

浅谈如何上好艺术体操选修课

对普通高校艺术体操选修课教学从形体姿态的培养、教学成套动作的编排,音乐的选择及口令、手势的运用等,进行了分析探讨.