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   873篇
  免费   17篇
教育   521篇
科学研究   119篇
各国文化   6篇
体育   92篇
文化理论   4篇
信息传播   148篇
  2023年   4篇
  2022年   10篇
  2021年   15篇
  2020年   23篇
  2019年   37篇
  2018年   43篇
  2017年   34篇
  2016年   34篇
  2015年   25篇
  2014年   31篇
  2013年   166篇
  2012年   65篇
  2011年   106篇
  2010年   33篇
  2009年   41篇
  2008年   26篇
  2007年   15篇
  2006年   33篇
  2005年   16篇
  2004年   16篇
  2003年   9篇
  2002年   14篇
  2001年   5篇
  2000年   4篇
  1999年   8篇
  1998年   1篇
  1997年   4篇
  1996年   7篇
  1995年   7篇
  1994年   4篇
  1993年   10篇
  1992年   9篇
  1991年   1篇
  1990年   3篇
  1989年   3篇
  1988年   7篇
  1987年   2篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1983年   1篇
  1982年   3篇
  1981年   2篇
  1980年   2篇
  1976年   3篇
  1975年   1篇
  1973年   1篇
  1971年   1篇
  1967年   1篇
排序方式: 共有890条查询结果,搜索用时 31 毫秒
821.
The authors of this article reflect on their experiences as facilitators of an action research network aiming to provide a context for participating schools to identify and address barriers to pupils' learning and participation. Within the network, action research is seen to have different meanings for individuals within and between schools in terms of the relationship between action, data and changes at the personal, group and institutional levels. In nearly all schools in the study, however, it importantly signifies a measure of autonomy over the direction of development, in an era of strongly imposed external agendas. The relationship between the action research process and the values associated with inclusion is explored with the use of school-level data, and interpreted through attention to the actions developing in the schools. Some of the consequences of these actions are described, both intentional and unintentional, and the possible significance of developing rhetoric within and between schools is suggested. The article concludes that action research as described in this network may sustain the development of more inclusive schools, by creating possibilities for critical reflection on the relationship between values and practice within the institution.  相似文献   
822.
Background: Within Higher Education in the United Kingdom (UK), programme leaders are under increased pressure to be more productive and are expected to undertake a complex range of demanding activities. However, perceptions of the role through the lens of the programme leader have not been explored sufficiently. Clearly, a university’s ability to enhance and sustain improvement in programme delivery depends largely upon its ability to nurture and foster professional learning, most notably at a programme level. The need for a review of programme leader training and support was reinforced through the experience of facilitators at programme leader workshops at one Higher Education Institution in the UK. Critically, these workshops highlighted a need to review and enhance the preparation and on-going training and support available to programme leaders.

Aim: The overall aim of this study was to explore the role of the programme leader, in order to gain an in-depth understanding of what the role involves and a detailed appreciation of the knowledge and skills required to discharge the role effectively and efficiently. Such insight would inform the review of the provision of initial and on-going training and support workshops for new and experienced programme leaders. Indeed, the ultimate aim was to drive improvements in programme leader performance.

Method: A qualitative design was selected to allow the complexity of the programme leader role to be explored and captured. A purposeful sample (n = 25) was recruited from a range of newly appointed and experienced undergraduate and postgraduate programme leaders and associate deans with academic quality assurance and learning and teaching expertise across seven schools in one post-1992 university in England. In total, four semi-structured focus group interviews were conducted. A modified version of the data analysis method advocated by Chenitz and Swanson was employed to examine the data.

Findings: Four dynamic, interrelated conceptual categories form the basis of the emergent findings. These are Operational Diversity, which addresses the different duties carried out by participants, highlighting certain tensions in their ability to meet the demands placed upon them; Interaction with Others, which identifies the diverse range of stakeholders that shape and impact on the multifaceted programme leader role and highlights the importance of collaborative working; Mechanisms of Support, which describes the training and personal development experience of the participants and the extent to which it matches their needs; and Required Knowledge and Skills, which considers the need for initial and on-going training to enable programme leaders to meet the demands of this role.

Conclusion: Examination has revealed that within an ever-changing Higher Education sector in the UK, the role of a programme leader is not without challenge as most have to deal with complex academic, pastoral, moral, administrative and pragmatic decisions on a daily basis. Moving forward must involve bespoke preparation and on-going training and support. Specific emphasis should be placed on opportunities for self-reflection, debriefing and the sharing of experiences with peers. At the heart of on-going training and support should be the strategic engagement of students, professional staff and other key personnel from services offered across a university.  相似文献   
823.
During restoration activities, a fungal reddish area was noted on a gilded wood carved ceiling decoration from a sacristy of a church in Aveiro, Portugal. The protocols used to identify the fungal community present in this wooden material included the classical culturing methods and a molecular biology protocol based on the ability of denaturing high performance liquid chromatography (DHPLC) to separate fungal DNA from several species. This last method complemented the results obtained with the traditional culturing method approach and the overall study revealed three fungal species: Serpula lacrymans (Wulfen) P. Karsten, Paecilomyces lilacinus (Thom) Samson and Penicillium chrysogenum Thom. This is, to the author's knowledge, the first documented case of S. lacrymans in Portuguese built cultural heritage. Despite the antifungal solution applied and the dryer environment recommended, the water activity (Aw) levels recorded on location are still dangerously high and may allow fungal regrowth. Periodic inspections were advised.  相似文献   
824.
Abstract

In this study, we assessed the extent to which 2000-m rowing ergometer performance predicted final rankings at the World Junior Rowing Championship in a sample of 398 junior rowers competing in 13 events. The rowers' ergometer performance times were examined using a questionnaire, and in all 13 events they correlated (P ≤ 0.039) with the final rankings at the Championship. The strongest correlations were observed for ergometer performance times in junior women's single sculls (r = 0.92; P < 0.001), followed by junior men's single sculls (r = 0.80; P < 0.001) and junior women's double sculls (r = 0.79; P < 0.001). The observed correlations were higher for smaller boats – singles, doubles, and pairs (r = 0.64–0.92; P ≤ 0.025) – than for larger boats – quads, fours, and eights (r = 0.31–0.70; P ≤ 0.039). Linear regression analyses were used to construct regression equations to predict final rankings based on 2000-m rowing ergometer performance times for each event. Although correlations in 10 of the 13 events were above r = 0.5, the large standard errors of the estimate impaired the prediction of rankings in all of the studied events. Using these equations, the most probable rowing ergometer performance times required for a particular ranking in a given rowing event might easily be calculated.  相似文献   
825.
Abstract

Characteristics of 32 international and 41 local under-17 (U-17) (14.5–16.5 years) roller hockey players were considered in the context of discrimination by competitive level using training history, anthropometry, skeletal maturation, and several laboratory and field performance tests. More international (42%) than local (22%) players were advanced in maturity status. International players had slightly less hockey experience (years), but had more practice sessions and match time (minutes) during the season. Local players were shorter and attained better performance in the 25-m dash, while international players performed better in sit-ups, ball throw and 20-m shuttle run. The fatigue index derived from the Wingate anaerobic test was higher among local players, while peak torques of knee extension and flexion were greater in international players. Stepwise discriminant function correctly classified 85% of players by competitive level based on grip strength, ratio of eccentric and concentric knee extension, number of training sessions, playing time and fatigue index. The results suggested an interaction among strength, anaerobic fitness and training plus game time as factors in discriminating international from local level players and by inference in the selection and development of youth roller hockey players.  相似文献   
826.
Abstract

Little is known of the performance characteristics of the shotokan karate mae-geri kick. The aim of this study was to compare the execution time, the lower limb kinetics and kinematics, and their respective repeatability in the mae-geri kick of karate athletes of two different standards. Seventeen adult black belt karate competitors (9 national and 8 international athletes) performed six kicks with their dominant lower limb on a striking surface, combining maximum force impact and velocity. Execution time of movement and lower limb kinematics were recorded with a high-speed camera. Maximum force at impact and the forces exerted on the ground were measured using three force plates. The duration of the kick was significantly shorter for international than for national standard athletes. However, no significant difference in the maximum impact force of the kick was observed between the two groups. In addition, significant kinematic differences were observed between the groups, with two angles of motion and one velocity peak occurring sooner in the kick movement for the international athletes, specifically for the knee joint. International athletes also performed the kick with a significantly higher repeatability for duration and kinematics, specifically during the pre-loading phase that precedes the attack phase. We conclude that theduration of the kick and repeatability of lower limb kinematics could be useful in selecting top-level karate athletes and monitoring their training status.  相似文献   
827.
Abstract

We investigated the mechanical properties of the triceps surae between professional, junior, and non-football players. Fifty-nine men participated in this study. The mechanical properties of the right legs’ triceps surae were measured in vivo using a free oscillation technique; no significant differences existed between the groups. The mean results for musculo-articular stiffness, damping coefficient, and damping ratio were as follows: professional football players (21523 N· m?1, 330.8 N · s · m?1, and 0.201); junior football players (21063 N · m?1, 274.4 N · s · m?1, and 0.173); and non-players (19457 N · m?1, 281.5 N · s · m?1, and 0.184). When analysed according to position, the results were as follows: defender (21447 N · m?1, 308.6 N · s · m?1, and 0.189); midfielder (20762 N · m?1, 250.7 N · s · m?1, and 0.157); winger (21322 N · m?1, 335.1 N · s · m?1, and 0.212); forward (22085 N · m?1, 416.2 N · s · m?1, and 0.254); and non-players (19457 N · m?1, 281.5 N · s · m?1, and 0.184).

Thus, football training, football games, and the position played had no effect on triceps surae mechanical properties. These results may be attributed to opposing adaptations between different types of training that are usually implemented in football. Alternatively, the minimum strain amplitude and/or frequency threshold of the triceps surae required to trigger adaptations of mechanical properties might not be achieved by football players with football training and matches.  相似文献   
828.

Purpose

The study purpose was to assess perceptions of physical therapists (PTs) regarding the role of physical therapy in cardiovascular disease (CVD) prevention.

Methods

A 25-item survey, validated by expert cardiovascular/pulmonary (CVP) PTs, was sent electronically to 2,673 PTs. Each item represented an element of clinical practice behavior: education of CVD/risk factors (EDCVD), administration of primary CVD prevention (PRECVD), identifying underlying CVD/risk factors (IDCVD), monitoring CV status in patients with CVD (MONCVD). Responses were assigned numeric values (strongly agree = 5 to strongly disagree = 1), and mean element scores were analyzed.

Results

Most of the 516 respondents were APTA Section members (34% CVP Section, 42% other Section membership) and worked in academia (53%). Items showing a high (> 95%) level of agreement included patient education of smoking (97%) and monitoring exercise intensity (99%), assessing exercise benefits (99%), clinically identifying obesity (97%) and hypertension (97%), and monitoring CV response to exercise (99%). Items failing to reach 80% overall agreement were patient education of CVD medications (79%) and blood chemistry (72%), and assessing CVD family history (75%), patient BMI (60%), and body composition (33%). Identifying underlying CVD (77.2%) was the only practice behavior failing to reach 80% agreement. Outpatient PTs agreed significantly less to all elements vs. academics, and to IDCVD vs. all PTs except home health.

Conclusions

Physical therapists support most CVD prevention behaviors, but not given elements of patient education and identifying underlying CVD/risk factors.Key Words: cardiovascular disease, primary disease prevention, secondary disease prevention  相似文献   
829.
The present study aims to challenge primary school science teachers' beliefs about education and teaching efficacy, as well as their teaching practices, through a video-case-based intervention programme in a Chinese educational setting. A total of 46 in-service teachers were involved in this study (experimental group = 23, control group = 23). Pre- and post-intervention surveys were administered to examine possible changes in the participants' beliefs about education and science teaching efficacy. Video data were gathered through classroom observations of 9 participants from the experimental group and 9 participants from the control group. The results of one-way analysis of covariance indicate that the reported post-intervention beliefs of teachers who participated in the programme differed significantly from their pre-intervention beliefs. More specifically, teachers in the experimental groups reported fewer traditional and more constructivist beliefs after the intervention, as well as stronger personal science teaching efficacy beliefs. One exception included beliefs about science teaching outcome expectancy. The video data showed that teaching practices became more constructivist in terms of both practical activities and student ICT use.  相似文献   
830.
The Global Village Playground (GVP) was a capstone learning experience designed to address institutional assessment needs while providing an integrated and authentic learning experience for students aimed at fostering critical and creative thinking. In the GVP, students work on simulated and real-world problems as a design team tasked with developing an alternate reality game that makes an impact on the United Nations Millennium Development Goals. Researchers employed a qualitative case study approach to evaluate participant reactions to the course, their perceptions of the instructional design methodology, what they learned in the course, and the challenges they experienced during the pilot implementation of this capstone design. This article documents what students reported to have learned in the course as a result of their experience creating an alternate reality game.  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