首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   95篇
  免费   2篇
教育   76篇
科学研究   7篇
体育   9篇
信息传播   5篇
  2023年   3篇
  2022年   2篇
  2021年   5篇
  2020年   8篇
  2019年   4篇
  2018年   9篇
  2017年   8篇
  2016年   6篇
  2015年   1篇
  2014年   5篇
  2013年   14篇
  2012年   6篇
  2011年   2篇
  2010年   4篇
  2009年   3篇
  2007年   1篇
  2005年   2篇
  2004年   1篇
  2003年   2篇
  2002年   2篇
  2000年   1篇
  1998年   1篇
  1996年   1篇
  1993年   1篇
  1992年   2篇
  1985年   1篇
  1983年   1篇
  1978年   1篇
排序方式: 共有97条查询结果,搜索用时 15 毫秒
71.
Despite calls to address global challenges through community engagement, engineers are not formally prepared to engage with communities. Little research has been done on means to address this ‘engagement gap’ in engineering education. We examine the efficacy of an intensive, two-day Community Engagement Workshop for engineers, designed to help engineers better look beyond technology, listen to and learn from people, and empower communities. We assessed the efficacy of the workshop in a non-experimental pre–post design using a questionnaire and a concept map. Questionnaire results indicate participants came away better able to ask questions more broadly inclusive of non-technological dimensions of engineering projects. Concept map results indicate participants have a greater understanding of ways social factors shape complex material systems after completing the programme. Based on the workshop’s strengths and weaknesses, we discuss the potential of expanding and supplementing the programme to help engineers account for social aspects central to engineered systems.  相似文献   
72.
73.
An increase in salivary leukocytes may contribute to the exercise-induced increase in salivary antimicrobial proteins (AMPs). However, exercise-induced changes in salivary leukocytes have not been studied. The purpose of the study was to describe salivary leukocyte changes with exercise. Participants (= 11, 20.3 ± 0.8 years, 57.2 ± 7.6 ml kg?1 min?1 peak oxygen uptake ((VO) ?2peak), 11.1 ± 3.9% body fat) ran for 45 min at 75% of VO2peak. Stimulated saliva (12 mL) was collected pre- and immediately post exercise. Saliva was filtered through a 30 µm filter before analysis of leukocytes (CD45+), granulocytes (CD45+CD15+), monocytes (CD45+CD14+), T-cells (CD45+CD3+), and B-cells (CD45+CD20+) using flow cytometry. Saliva was analysed for Lysozyme (Lys) using ELISA. Exercise did not alter any leukocyte subset. The major constituent of leukocytes pre-exercise were granulocytes (57.9 ± 30.3% compared with monocytes: 5.1 ± 2.7%, T-cells: 17.1 ± 8.9%, B-cells: 12.1 ± 10.2%) (P < 0.05). In a subset of = 6, Lys secretion rate increased after exercise (pre: 5,170 ± 5,215 ng/min; post: 7,639 ± 4,140 ng/min) (P < 0.05). Exercise does not result in increased granulocytes, but does increase Lys. Further, these data suggest that an increase in salivary leukocytes is not needed to increase Lys.  相似文献   
74.
Using data from a national survey of school psychologists we investigated (a) the extent to which school psychologists supported students' social–emotional and behavioral well-being using data and evidence-based practices programming, (b) how facilitators and barriers impacted school psychologists' service delivery in these areas, and (c) how participants' demographic characteristics predicted facilitators to these practices. The survey was administered to randomly selected National Association of School Psychologists' members. One hundred ninety-nine full-time, school-based school psychologists (24% response rate) completed the survey. Results indicated more practitioners reported using data to design, implement, and evaluate evidence-based strategies for social–emotional and behavioral supports (M = 3.32, SD = 0.90) than reported using evidence-based strategies themselves in these same areas (M = 3.10, SD = 1.05). School psychologists who reported more facilitators were more likely to use data and engage in evidence-based practices related to social–emotional and behavioral supports for students. Results also indicated certain barriers impeded school psychologists' practices in these areas. Few demographic characteristics predicted the presence of facilitators or barriers. Findings from the current study extend the extant literature by providing empirical data on facilitators of and barriers to services related to school psychologists' use of data and evidence-based practices in these areas.  相似文献   
75.
76.
This article presents part of the research performed in a project from 2008 to 2013, regarding the introduction of the Reggio Emilia approach to Slovene preschool educators. The study’s aim was to recognize the possible influence of the training—from 2009 to 2011—in this project on educators’ viewpoints and the promotion of children’s participation in practice. We believe that a potential reform of the Slovene national curriculum should establish the participation of children as one of its key principles. It seems that the two-year intensive training of educators, followed by projects in preschool practice, has been a successful step in this direction.  相似文献   
77.
Whole body vibration (WBV) is used as a training method but its physical risk is not yet clear. Hence, the aim of this study is to assess the exposure to WBV by a measure of acceleration at the lower limb under dynamic and static postural conditions. The hypothesis of this paper is that this assessment is influenced by the frequency, position, and movement of the body. Fifteen healthy males are exposed to vertical sinusoidal vibration at different frequencies (20–60 Hz), while adopting three different static postures (knee extension angle: 180°, 120° and 90°) or performing a dynamic half-squat exercise. Accelerations at input source and at three joints of the lower limb (ankle, knee, and hip) are measured using skin-mounted accelerometers. Acceleration values (g) in static conditions show a decrease in the vibrational dose when it is measured at a more proximal location in the lower extremity. The results of the performed statistical test show statistically significant differences (p < 0.05) in the transmissibility values caused by the frequency, the position, and to the presence of the movement and its direction at the different conditions. The results confirm the initial hypothesis and justify the importance of a vibration assessment in dynamic conditions.  相似文献   
78.
Five second-grade classes in two schools participated in a project that was generally compatible with a constructivist theory of knowing. At the end of the school year, the students in these classes and their peers in six non-project classes in the same schools were assigned to ten textbook-based third-grade classes on the basis of reading scores. The two groups of students were compared at the end of the third-grade year on a standardized achievement test and on instruments designed to assess their conceptual development in arithmetic, their personal goals in mathematics, and their beliefs about reasons for success in mathematics. The levels of computation performance on familiar textbook tasks were comparable, but former project students had attained more advanced levels of conceptual understanding. In addition, they held stronger beliefs about the importance of working hard and being interested in mathematics, and about understanding and collaborating. Further, they attributed less importance to conforming to the solution methods of others.  相似文献   
79.
ABSTRACT

In June 2017, the Business Reference & Services Section of the Reference & User Services Association organized and hosted an event known as the Publishers' Forum during the annual American Library Association Conference in Chicago, Illinois. The Publishers' Forum is a professional development event that brings together business librarians and publishers of business information to engage in a discussion about business information products. The theme of the 2017 Publishers' Forum was private equity and venture capital data and information, and three different publishers were invited to speak and showcase their information products. This article will provide an overview of the Publishers' Forum, discuss the selection of private equity and venture capital as the theme, and highlight the importance of private equity and venture capital to business librarianship. Finally, this article will include a discussion of each of the publishers who presented at the Publishers' Forum and the information products they showcased.  相似文献   
80.
A literature review on perceptions of the interactive whiteboard during the teaching practicum shows that there has been insufficient analysis of student teachers’ perceptions of Information and Communication Technology (ICT). However, these perceptions are highly useful to create a full picture of the effectiveness – and indeed the drawbacks – of using ICT in the classroom. In this study, we examine and analyse evidence from teaching practica to assess the success of ICT – specifically the interactive whiteboard – as a teaching tool, using a qualitative method. The accounts are first-hand, scientific reflections made by student teachers from La Serena, Chile, during their teaching practicum in primary schools; for this reason they are extremely useful in analysing this teaching tool’s effectiveness in the classroom. Among the main results for students’ perceptions of incorporating technology as part of their training, we found a set of variables for good practice when using the interactive whiteboard, including: incorporating technology as an engaging didactic resource; making the most of technology for improving learning; determining when best to use the whiteboard; and identifying any limiting factors together with students’ suggestions for improvement.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号