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   2571篇
  免费   55篇
教育   2084篇
科学研究   57篇
各国文化   38篇
体育   92篇
综合类   1篇
文化理论   12篇
信息传播   342篇
  2023年   13篇
  2022年   24篇
  2021年   40篇
  2020年   78篇
  2019年   88篇
  2018年   132篇
  2017年   130篇
  2016年   119篇
  2015年   72篇
  2014年   105篇
  2013年   613篇
  2012年   75篇
  2011年   68篇
  2010年   59篇
  2009年   68篇
  2008年   68篇
  2007年   64篇
  2006年   75篇
  2005年   64篇
  2004年   67篇
  2003年   29篇
  2002年   40篇
  2001年   30篇
  2000年   21篇
  1999年   36篇
  1998年   27篇
  1997年   28篇
  1996年   43篇
  1995年   21篇
  1994年   31篇
  1993年   19篇
  1992年   20篇
  1991年   16篇
  1990年   17篇
  1989年   10篇
  1988年   13篇
  1987年   15篇
  1986年   10篇
  1985年   16篇
  1984年   12篇
  1983年   8篇
  1982年   13篇
  1981年   10篇
  1979年   15篇
  1978年   8篇
  1977年   14篇
  1976年   9篇
  1975年   12篇
  1974年   9篇
  1973年   7篇
排序方式: 共有2626条查询结果,搜索用时 62 毫秒
81.
Individuals with chronic obstructive pulmonary disease (COPD) have been shown to benefit from participation in pulmonary rehabilitation (PR) programs that include exercise training and education. Purpose: To examine the relationship between improvements in 6 minute walk distance and perceived quality of life in individuals with COPD following completion of a PR program. Methods: The records of 139 individuals completing a PR program (3 times a week for 8 weeks) were retrospectively examined. Prior to entry and upon completion of the program each individual completed a 6 minute walk test (6MWT), the SF-36 Health survey, and the UCSD Shortness of Breath Questionnaire (SOB). SF-36 results were analyzed according to 8 subscales [Physical Functioning (PF), Role Physical (RF), Bodily Pain (BP), General Health (GH), Vitality (V), Social Functioning (SF), Role Emotional (RE), and Mental Health (MH)]. Results: PR resulted in significant improvements in 6MWTdistance (Pre = 845 ± 37 ft, Post = 1127 ± 32 ft, p < 0.001), PF (p < 0.001), RF (p = 0.001), Vitality (p = 0.002), SF (p < 0.001), RE (p = 0.037), MH (p < 0.001) and SOB (Pre = 53 ± 2, Post = 47 ± 2, p < 0.001). The change in 6MWT distance was not related to changes in PF (r = 0.17), RF (r = 0.03), GH (r = 0.03), Vitality (r = −0.001), SF (r = 0.01), RE (r = 0.06), MH (r = −0.04) or SOB (r = 0.12). The magnitude of improvement in 6MWT distance (68%) was much greater than that observed in PF (15%), RF (16%), GH (6%), VT (18%), SF (20%), RE (14%), MH (14%), or SOB (8%). Conclusions: PR has a positive impact on 6 minute walk distance and perceived quality of life in individuals with COPD; however, changes in 6 minute walk distance appear to have no relationship to changes in perceived quality of life.  相似文献   
82.
The aim of this study was to examine the relationship between shoulder alignment and elbow angle during the delivery action of fast-medium bowlers. The elbow and upper trunk alignment were recorded for 13 high-performance bowlers (mean age 20 years) using a 12-camera Vicon motion analysis system operating at 250 Hz. The three highest velocity trials for "good" and "short" length deliveries were analysed. Results showed that bowlers with a more front-on shoulder alignment at back-foot impact and when the upper arm was horizontal to the ground experienced a significantly greater elbow flexion--extension range when compared with those who had a more side-on orientation at the same point in the delivery action. Bowlers with greater shoulder counter-rotation also recorded higher elbow flexion and subsequently extension during the period from upper arm horizontal to ball release. Shoulder alignment and elbow angles were similar for "short" and "good" length deliveries. It was concluded that bowlers with a more front-on shoulder orientation at back-foot impact demonstrated a higher elbow extension from upper arm horizontal to ball release and are therefore more likely to infringe International Cricket Council elbow tolerance levels, compared with those who adopt a more side-on shoulder orientation at back-foot impact.  相似文献   
83.
Details of the preparation and the immunogenic properties of an ultraviolet-inactivated poliomyelitis vaccine are described. The data presented indicate that the SK murine strain of the virus may be inactivated by controlled irradiation and yet retain sufficient immunizing potency to protect mice against 1,000 to 10,000 M.L.D. of the active virus administered intraperitoneally or intranasally.  相似文献   
84.
85.
86.
87.
88.
We provide here a brief historical analysis of a movement in progress from a belief‐based “mystery” model to an evidence‐based “mastery” model of giftedness and talent development. We have observed that educators concerned about exceptionally capable learners are moving from a categorical notion of “the typical gifted child” with somewhat mysteriously defined attributes and learning needs, toward the perspective that some children have exceptionally advanced learning needs that require more flexibly responsive educational attention. We discuss factors that differentiate the two models, and observe some benefits of the shifting paradigm, arguing that by conceptualizing gifted education as providing a dynamically responsive educational match for students who otherwise experience a mismatch with the curriculum normally provided, the mastery model is socially, educationally, and politically more defensible. We discuss some practical implications of this shift in perspective.  相似文献   
89.

Eight gifted and eight general‐education students engaged in discussions regarding their observations of, experiences in, and recommendations for education. Six categories emerged through qualitative analysis of their conversations. These categories include: problem solving, task commitment, self‐perceptions, education, communication, and discrimination. Content within each category provides a glimpse into the students’ perceptions of their schooling experiences. The roles of ethnic identity development, identification with majority culture, adolescence, and gifted‐ness are examined and recommendations for future research are provided.  相似文献   
90.
Abstracts

English

Is recurrent education a practical strategy for change? This research paper reports some of the reactions of the Australian legal profession to recurrent education and suggests that a covert alliance between the profession and its educators results in a strong resistance to this rather radical approach to education.  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