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   1588篇
  免费   25篇
  国内免费   3篇
教育   1095篇
科学研究   67篇
各国文化   20篇
体育   160篇
综合类   1篇
文化理论   14篇
信息传播   259篇
  2023年   7篇
  2022年   9篇
  2021年   15篇
  2020年   39篇
  2019年   58篇
  2018年   70篇
  2017年   93篇
  2016年   71篇
  2015年   51篇
  2014年   58篇
  2013年   374篇
  2012年   42篇
  2011年   49篇
  2010年   33篇
  2009年   45篇
  2008年   48篇
  2007年   36篇
  2006年   45篇
  2005年   40篇
  2004年   35篇
  2003年   37篇
  2002年   22篇
  2001年   19篇
  2000年   19篇
  1999年   17篇
  1998年   12篇
  1997年   12篇
  1996年   14篇
  1995年   9篇
  1994年   10篇
  1993年   15篇
  1992年   17篇
  1991年   11篇
  1990年   10篇
  1989年   14篇
  1988年   18篇
  1987年   6篇
  1986年   8篇
  1985年   12篇
  1984年   8篇
  1983年   5篇
  1982年   7篇
  1980年   4篇
  1979年   4篇
  1977年   7篇
  1976年   5篇
  1973年   8篇
  1971年   6篇
  1970年   4篇
  1968年   7篇
排序方式: 共有1616条查询结果,搜索用时 9 毫秒
111.
112.
Suggests some reasons for the growth in the number of medical papers published, and some disadvantages arising from it.  相似文献   
113.
114.
What are the state and district policies on reporting test results to parents? How well do local districts follow state policies?  相似文献   
115.
This paper provides a systematic examination of the use of a Grand Innovation Prize (GIP) in action – the Progressive Automotive Insurance X PRIZE – a $10 million prize for a highly efficient vehicle. Following a mechanism design approach we define three key dimensions for GIP evaluation: objectives, design, and performance, where prize design includes ex ante specifications, ex ante incentives, qualification rules, and award governance. Within this framework we compare observations of GIPs from three domains – empirical reality, theory, and policy – to better understand their function as an incentive mechanism for encouraging new solutions to large-scale social challenges. Combining data from direct observation, personal interviews, and surveys, together with analysis of extant theory and policy documents on GIPs, our results highlight three points of divergence: first, over the complexity of defining prize specifications; secondly, over the nature and role of incentives, particularly patents; thirdly, the overlooked challenges associated with prize governance. Our approach identifies a clear roadmap for future theory and policy around GIPs.  相似文献   
116.
In a variety of fields, particularly human service occupations, the management of emotion is a precondition of employee and client well being. Based on qualitative data from participant observation and interviews, this study examines how firefighters are socialized to manage feelings and emotional displays. It concludes that firefighters recognized a need to manage their own emotions and those of their clients in order to deliver adequate service. Veteran firefighters facilitated the use of emotion labor techniques among newcomers by considering the emotion management knowledge and capabilities of job candidates during employee selection processes, providing habituated emotional events, and reinforcing customer service expectations. Newcomers actively participated in their own socialization to local emotion expectations through observational information seeking, retrospective surveillance, and performance of a normative newcomer role demeanor. The article concludes by offering practical and theoretical implications.  相似文献   
117.
Currently, there are no Hebrew (L2) reading assessments that have been tested to obtain evidence for reliability and validity on which to base decisions about Hebrew instruction. The authors developed a Hebrew benchmark assessment tool for first grade students modeled after Dynamic Indicators of Basic Early Literacy Skills, a standardized test of accuracy and fluency used to identify at-risk students and to monitor student progress. Results of pilot data collection (N=53) provide evidence for strong alternate form reliability for this measure, as well as evidence for content, face and criterion-related validity. Future directions for research and development are discussed.  相似文献   
118.
Two theories that have been hypothesized to mediate acquisition in daily time–place learning (TPL) tasks were investigated in a free operant daily TPL task: the response cost hypothesis and the species-typical behavior hypothesis. One lever at the end of one of the choice arms of a T-maze provided food in the morning, and 6 h later, a lever in the other choice arm provided food. Four groups were used to assess the effect of two possible sources of response cost: physical effort of the task and costs associated with foraging ecology. One group was used to assess the effect of explicitly allowing for species-typical behaviors. If only first arm choice data were considered, there was little evidence of learning. However, both first press and percentage of presses on the correct lever prior to the first reinforcement revealed evidence of TPL in most rats tested. Unexpectedly, the high response cost groups for both of the proposed sources did not perform better than the low response cost groups. The groups that allowed animals to display species-typical behaviors performed the worst. Skip session probe trials confirmed that the majority of the rats that acquired the task were using a circadian timing strategy. The results from the present study suggest that learning in free operant daily TPL tasks might not be dependent on response cost.  相似文献   
119.
Among current retention models, Tinto’s Interactionalist Model has reached near paradigmatic status. When his model has been applied to two-year college settings, the social integration results have been inconsistent. This has led Maxwell (2000) and Deil-Amen (2011) to suggest that a different construct of social integration exists in community colleges; one that focuses less on purely social activities and more on peer groups centered on academically-related activities, and interactions with faculty and students inside the classroom. But are these two constructs really different? The current study sought to ascertain whether this alternative construct of social integration is, in fact, related to Tinto’s construct. It also was designed to investigate the impact of additional variables including gender, race, age, and program of study (i.e., occupational vs. transfer) have on both constructs. After conducting the analysis, it was found that the two social integration constructs were highly related. Additionally, it was found that social integration, using Tinto’s construct, significantly varied by gender. Future research strategies including longitudinal analysis, regression analysis, and qualitative techniques are all recommended.  相似文献   
120.
While community colleges serve as a postsecondary entry point for many “at-risk” students, not many who enroll will be ready or able to participate in college level courses on entry. Statistically, large numbers of community college students require college remediation, and only a handful are able to successfully emerge from the remediation pipeline. Many students find mathematics the most challenging course sequence and frequently report high levels of math anxiety and lower completion rates. Using population data from a large urban district in a western state, this study examined the impact of course grades on subsequent grades within math courses.  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