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   1540篇
  免费   30篇
教育   1171篇
科学研究   54篇
各国文化   22篇
体育   116篇
综合类   1篇
文化理论   23篇
信息传播   183篇
  2021年   15篇
  2020年   25篇
  2019年   26篇
  2018年   44篇
  2017年   51篇
  2016年   50篇
  2015年   31篇
  2014年   47篇
  2013年   415篇
  2012年   37篇
  2011年   40篇
  2010年   31篇
  2009年   27篇
  2008年   35篇
  2007年   41篇
  2006年   30篇
  2005年   37篇
  2004年   26篇
  2003年   34篇
  2002年   31篇
  2001年   11篇
  2000年   24篇
  1999年   9篇
  1998年   16篇
  1997年   16篇
  1996年   20篇
  1995年   17篇
  1994年   15篇
  1993年   22篇
  1992年   20篇
  1991年   28篇
  1990年   22篇
  1989年   19篇
  1988年   17篇
  1987年   10篇
  1986年   20篇
  1985年   13篇
  1984年   7篇
  1983年   15篇
  1982年   14篇
  1981年   17篇
  1980年   14篇
  1979年   18篇
  1978年   11篇
  1977年   8篇
  1976年   12篇
  1974年   7篇
  1973年   11篇
  1971年   8篇
  1970年   8篇
排序方式: 共有1570条查询结果,搜索用时 359 毫秒
111.
The U.S. Supreme Court’s 1991 decision in the Feist case wiped away the idea that “sweat of the brow” is adequate for a copyright claim. The history of the relevant issues is discussed and the Court’s decision is examined. The decision has a number of implications for publishers but leaves many questions unanswered.  相似文献   
112.
113.
114.
The effects of cooperative and individualistic learning experiences were compared on (1) interpersonal attraction between nonhandicapped fifth- and sixth-grade elementary school students and learning-disabled peers and (2) achievement. Students participated in a language arts class lasting 90 min a day for 17 days. The results indicate that greater interpersonal attraction between the learning-disabled and normal-progress students and higher achievement resulted in the cooperative than in the competitive condition.  相似文献   
115.
116.
117.
118.
Expert performers in striking sports can hit objects moving at high speed with incredible precision. Exceptionally well developed anticipation skills are necessary to cope with the severe constraints on interception. In this papr we provide a review of the empirical evidence regarding expert interception in striking sports and propose a preliminary model of expert anticipation. Central to the review and the model is the notion that the visual information used to guide the sequential phases of the striking action is systematically different between experts and nonexperts. Knowing the factors that contribute to expert anticipation, and how anticipation may guide skilled performance in striking sports, has practical implications for assessment and training across skill levels.  相似文献   
119.
PurposeThe purpose of this study was to compare established methods with newly-developed methods for estimating the total energy expenditure (TEE).MethodsThe study subjects comprised 46 individuals, including 16 middle-aged men (mean age 51.4 years), 14 middle-aged women (mean age 49.9 years) and 16 young women (mean age 19.1 years). The TEE was estimated from 24-h heart rate (HR) data using newly-developed software (MoveSense HRAnalyzer 2011a, RC1, Suunto Oy, Vantaa, Finland), and was compared against the TEE determined using doubly labeled water (DLW). Agreement between the two methods was analyzed using Bland and Altman plots.ResultsThe HR method yielded similar TEE values as the DLW method at the group level, with an average of 8.6 kcal/day in the difference in the mean, but with large individual variations. Forty-four (96%) out of 46 subjects fell within ±2SD of the mean difference in TEE comparisons, and there was no tendency towards under- or over-estimation.ConclusionOur results indicate that the current software using HR analysis for the estimation of daily TEE needs further development for use with free-living individuals.  相似文献   
120.
OBJECTIVE: To evaluate the psychometric properties of a new measure, the Abuse-Related Beliefs Questionnaire (ARBQ), designed to assess abuse-related beliefs among adult survivors of childhood sexual abuse (CSA). Study 1 examined the structure of the scale, and Study 2 evaluated its reliability and validity. METHOD: One hundred and seventy female CSA survivors recruited into a group psychotherapy intervention study were administered the ARBQ in Study 1. A subsample of 45 women completed the ARBQ again 12 months later. In Study 2, 70 women from a health maintenance organization who identified themselves as survivors of CSA completed the ARBQ along with the Trauma Symptom Checklist-40 (TSC-40) and the Symptom Checklist 90R (SCL-90-R). RESULTS: Three reliable ARBQ subscales emerged in Study 1: Guilt, Shame, and Resilience. Twelve-month test-retest reliability was high (r=.60-.64). The internal consistency of the subscales was further supported in Study 2, and validity was demonstrated by moderate to high correlations with the distress measures. CONCLUSIONS: The results indicate that the ARBQ has good psychometric characteristics, supporting the feasibility of its use in measuring abuse-related beliefs in research on survivors of CSA. A next step for validation of the ARBQ would be to evaluate its sensitivity in measuring changes in studies of interventions for treating CSA survivors.  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