体外反搏对运动员血流动力学影响的研究     

郑岩岚 《浙江体育科学》1995,(3)

１２名游泳运动员，配对后随机分成实验组和对照组，实验组每人进行２周共１０次体外反搏，于反搏前、反搏后即刻和２周后测定血流动力学指标，同时对与之配对的对照组队员进行测定。结果表明：体外反搏后即刻心输出量增加，左心室有效泵力提高，体循环外周阻力下降，微循环状态改善；进行两周反搏后的第二天，上述良好变化继续存在，而对照组各项指标前后变化不大，提示体外反搏对提高运动员心功能，改善血循环状况从而增加重要器官的血液供应，加速代谢产物的排泄方面有良好的作用。  相似文献   

Coordinating multiple representations of polynomials: What do patterns in students' solution strategies reveal?     

《Learning and Instruction》2017

We investigate the strategies used by 64 advanced secondary mathematics students to identify whether a given pair of polynomial representations (graphs, tables, or equations) corresponded to the same function on an assessment of coordinating representations. Participants also completed assessments of domain-related knowledge and background skills. Cluster analysis of strategies by representation pair revealed patterns in the participants' strategy use. Two clusters were identifiable on tasks that required matching equations to graphs and graphs to tables. We identified overlap between these two clusters, suggesting that while the representation pair influenced strategy choice, there was also a general distinction between students who used more and less sophisticated strategies. However, students who used more sophisticated coordination strategies were similar to the others on measures of domain-specific knowledge or background skills. We consider implications for future investigations testing interventions to promote coordinating representations.  相似文献   

论党的三代领导核心与从严治党     

张广鑫 《辽宁师范大学学报(社会科学版)》2002,25(2):4-6

中国共产党的历史同时是常不断加强自身建设的历史。从严治党是我们党的一贯方针。以毛泽东、邓小平、江泽民为核心的党的三代领导,虽因处在不同的历史时期,围绕党的中心任务进行党的建设的主题不同,但其党的建设的思想原则是一脉相承,就是“党要管党,从严治觉”。  相似文献   

“三个代表”重要思想的理论和实践     

汪华岳 《滨州学院学报》2001,17(1):5-8

学习“三个代表”的重要思想 ,必须坚持理论联系实际的马克思主义学风。要深入把握“三个代表”重要思想的理论根据和实践根据 ,更要研究怎样切实有效地实践“三个代表”。  相似文献   

Lecturers on teaching within the ‘supercomplexity’ of Higher Education     

Susan J. Lea  Lynne Callaghan 《Higher Education》2008,55(2):171-187

While a vast literature exists on students and their learning, work on lecturers and their teaching continues to lag some way behind. This paper explores the notion that the complexity of Higher Education (HE) today significantly impacts upon what goes on in the classroom through a two-tiered study. Semi-structured interviews were conducted to explore lecturers’ perceptions and experiences of teaching a specific module. Interviewees raised issues pertaining to the wider departmental, institutional and socio-political context. Consequently, focus groups were run with key people in the University to explore their perceptions of teaching and learning within the current HE climate. The findings suggest that lecturers perceive numerous external factors to impinge upon their teaching and attempt to militate against these in various ways in order to achieve ongoing enhancement of learning for students.

Susan J. LeaEmail:

  相似文献   

School monitoring and quality assurance in the New Zealand school system   总被引：1，自引：0，他引：1  

Fubuki Sakura 《Educational Research for Policy and Practice》2007,6(3):229-234

This article reports on the New Zealand education quality assurance and school monitoring system, including its framework, and responsibilities of agencies. It first gives an outline of the education system in New Zealand, and then introduces the role of school charters and levels of schooling. To ensure the quality of schools, the methods of school self-review and external reviews of schools are used by the New Zealand government. Schools are given a list of obligations that they have to follow. Assessment policies and the school curriculum are designed to support learning. Fubuki Sakura formerly called William Leung  相似文献   

深刻把握“三个代表”重要思想的哲学基础   总被引：1，自引：0，他引：1  

冯国桢 《青海师范大学学报(哲学社会科学版)》2003,(4):33-37

江泽民同志提出并系统阐述的“三个代表”重要思想，是我们党的立党之本，治国之基，力量之源，是当代中国马克思主义理论发展的最新成果。本探讨了“三个代表”重要思想形成的新的实践基础，分析了这一重要思想是在我们党和国家所面临的伟大历史转折时期，在复杂多变的国际形势的特定历史背景下形成的。章还探讨了“三个代表”重要思想立论的哲学基础。  相似文献   

比较法视野下人民监督员制度基本问题考察     

张时春  刘英 《四川职业技术学院学报》2007,17(4):15-18

人民监督员制度首先应当实现在人员选任、资源利用等方面对监督对象的独立;其次,通过完善程序使监督员更全面、深入获取案件信息:最后,人民监督员制度应当在民主参与性的正当性和专业知识性之间保持一定的张力.  相似文献   

Spoken vocabulary growth: Its role in the development of phoneme awareness and early reading ability     

Walley  Amanda C.  Metsala  Jamie L.  Garlock  Victoria M. 《Reading and writing》2003,16(1-2):5-20

In this paper, two theoretical positionsregarding the developmental origins of thephoneme as a unit for lexical representationand processing are outlined – theaccessibility and emergent positions. OurLexical Restructuring Model (Metsala & Walley1998), which is consistent with the secondposition, focuses on the role of vocabularygrowth in prompting the implementation of morefine-grained, segmental representations forlexical items in childhood; this restructuringis viewed as an important precursor to theexplicit segmentation or phoneme awarenessskills implicated in early reading success.Empirical evidence that supports this model issummarized, including preliminary results fromone of our most recent studies. Severalsuggestions are made for future research thatwill lead to a better understanding of thedevelopment of spoken word recognition and thelinks between speech- and reading-relatedabilities.  相似文献   

黔南布依族地区中学生“宏观-微观-符号”三重表征调查研究     

邢焰  易丽莎 《黔南民族师范学院学报》2011,(6):83-88

＂宏观-微观-符号＂三重表征是化学学习中特有的思维方式,它有助于学生对化学知识的理解,优化学生的化学知识结构。本研究采用问卷调查等方法,对黔南布依族中学生的三重表征水平进行调查和分析,发现这个地区的中学生的三重表征思维方式十分有限。  相似文献