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   5122篇
  免费   59篇
  国内免费   11篇
教育   3758篇
科学研究   412篇
各国文化   103篇
体育   400篇
综合类   1篇
文化理论   51篇
信息传播   467篇
  2021年   40篇
  2020年   60篇
  2019年   112篇
  2018年   131篇
  2017年   137篇
  2016年   165篇
  2015年   101篇
  2014年   114篇
  2013年   1248篇
  2012年   92篇
  2011年   112篇
  2010年   102篇
  2009年   106篇
  2008年   124篇
  2007年   98篇
  2006年   89篇
  2005年   104篇
  2004年   98篇
  2003年   82篇
  2002年   101篇
  2001年   74篇
  2000年   73篇
  1999年   78篇
  1998年   47篇
  1997年   60篇
  1996年   53篇
  1995年   56篇
  1994年   56篇
  1993年   50篇
  1992年   56篇
  1991年   75篇
  1990年   60篇
  1989年   52篇
  1988年   40篇
  1987年   60篇
  1986年   49篇
  1985年   60篇
  1984年   58篇
  1983年   63篇
  1982年   50篇
  1981年   52篇
  1980年   36篇
  1979年   55篇
  1978年   61篇
  1977年   51篇
  1976年   37篇
  1975年   42篇
  1974年   28篇
  1973年   33篇
  1971年   27篇
排序方式: 共有5192条查询结果,搜索用时 31 毫秒
911.
Editorial     
In earlier papers, we considered some of the pedagogy and assessment practices enacted by physical education (PE) teachers, when attempting to translate a centrally prescribed rationale into meaningful performance-led teaching within an integrated curriculum—Higher Still Physical Education (HSPE) in Scotland. One recurring theme from the data collected was anecdotal assertions from teachers that students were disadvantaged from achieving high levels of authentic attainment by written assessment instruments. Accordingly, students completed oral assessments, which were subsequently transcribed and marked to the same criteria as their written examination answers. However, results indicated that students were not disadvantaged as claimed. On the contrary, results highlighted that to various extents weaknesses in content knowledge were partially concealed through holistic written assessment. More optimistically, findings indicated that oral interviews could provide a constructive atmosphere for ongoing assessment, as well as providing informative feedback for teachers to utilize as part of their reflections on practice. Evidence from Senior Level Physical Education (SLPE) in Australia highlights the importance of language in dialogue and discussion within integrated teaching, learning and assessment environments. Consequently, a wider review of the functions such awards might play in students' school experiences prior to higher education appears merited.  相似文献   
912.
Academic productivity and research funding have been hot topics in biomedical research. While publications and their citations are popular indicators of academic productivity, there has been no rigorous way to quantify co-authors’ relative contributions. This has seriously compromised quantitative studies on the relationship between academic productivity and research funding. Here we apply an axiomatic approach and associated bibliometric measures to revisit a recent study by Ginther et al. (Ginther et al., 2011a, Ginther et al., 2011b) in which the probability of receiving a U.S. National Institutes of Health (NIH) R01 award was analyzed with respect to the applicant's race/ethnicity. Our results provide new insight and suggest that there is no significant racial bias in the NIH review process, in contrast to the conclusion from the study by D. K. Ginther et al. Our axiomatic approach has a potential to be widely used for scientific assessment and management.  相似文献   
913.
The objective of this work was to examine the relationship between attitudes about publishing across disciplines and the scientific impact of authors. We conducted a web survey of 1066 authors randomly selected from four disciplines in the Web of Knowledge: economics, anthropology, water resources and biochemistry (approximately 250 from each discipline). Authors were asked questions about publishing norms within their discipline. The h-index of authors was subsequently calculated from data available from the Web of Knowledge. Authors in biochemistry had on average twice the h-index of those in economics, anthropology and water resources. Biochemists had higher expectations about the number of articles published for hire and promotion, more strongly valued interdisciplinary publishing, felt the cutting edge of their science was clearer, and had more defined patterns of author credit assignment than the other disciplines. Anthropologists exhibited a lower relationship between h-index and the number of years since their first publication. We conclude that attitudinal differences between disciplines may lead to differences in the recognition of scientific findings and the therefore the establishment of normal science.  相似文献   
914.
915.
916.
Many mechanistic rules of thumb for evaluating the goodness of fit of structural equation models (SEM) emphasize model parsimony; all other things being equal, a simpler, more parsimonious model with fewer estimated parameters is better than a more complex model Although this is usually good advice, in the present article a heuristic counterexample is demonstrated in which parsimony as typically operationalized in indices of fit may be undesirable. Specifically, in simplex models of longitudinal data, the failure to include correlated uniquenesses relating the same indicators administered on different occasions will typically lead to systematically inflated estimates of stability. Although simplex models with correlated uniquenesses are substantially less parsimonious and may be unacceptable according to mechanistic decision rules that penalize model complexity, it can be argued a priori that these additional parameter estimates should be included. Simulated data . are used to support this claim and to evaluate the behavior of a variety of fit indices and decision rules. The results demonstrate the validity of Bollen and Long’s (1993) conclusion that “test statistics and fit indices are very beneficial, but they are no replacement for sound judgment and substantive expertise” (p. 8).  相似文献   
917.
A computer simulation program was developed for the purpose of studying the processes diagnostic personnel in the schools engage in when making psychoeducational decisions about students. Initially, the program collected demographic data on 159 participants and assessed their knowledge base in assessment. Bogus referral information for one of sixteen “cases” was then provided and subjects were instructed that they were to make eligibility and classification decisions for the child. They were told that scores and other information (e.g., observations) were available to them on a variety of tests from among seven domains. Although the referral data indicated the student might be evidencing academic or behavior problems, all assessment data indicated a normal or average performance. Fiftytwo percent of the subjects (i.e., 83) declared the “average” child eligible for special education services; their classification decisions were further analyzed. Decisions about the 16 different children were found to be more a function of referral information than child performance data. The outcomes are discussed with regard to implications for the practice of psychoeducational assessment.  相似文献   
918.
A controlled experiment was conducted in forty-four fifth-grade classrooms to investigate the extent to which creativity and problem-solving skills of children could be nurtured through a series of self-instructional programmed lessons. Also studied was the relationship of such skills to (1) learner characteristics (IQ and sex) and (2) classroom “environment” as it may have facilitated creative thinking. Significant differences were found favoring the experimental group (which received the programmed lessons). Improvement in productive thinking skills was found for both boys and girls of both higher and lower IQ. Greater gains were found in classrooms providing relatively little support and encouragement for productive thinking. Also the performance of girls on the productive thinking measures exceeded that of boys and there was a strong positive relationship to IQ.  相似文献   
919.
In general terms, the problem under investigation is that of determining whether selected teacher characteristics can be used as predictors for the commitment of teachers to a certain approach to the teaching of high school chemistry (Chemical Bond Approach). Teachers attending a summer institute were initially surveyed to determine these characteristics; included in this group were expectations of role related groups, innovativenes characteristics, and personal characteristics. At the completion of the institute, the participants were tested regarding their attitudes toward and their willingness to use the approach. Employing the stepwise regression technique of analysis, two characteristics (perceived disposition of reference group and innovativeness) were found as strong predictors. Pre-institute characteristics were also shown to account for a significant portion of the commitment of teachers to the approach.  相似文献   
920.
Third-, sixth-, and ninth-grade teachers in a Wisconsin county nominated 982 children as consistently displaying socially approved behavior and 568 as consistently displaying aggressive-disruptive behavior in the classroom. Five years after the original nominations teacher grades in English, science, mathematics, and social studies; rank in graduating class for original ninth graders; and STEP scores were obtained. Analyses of covariance (ANACOVA) were made with IQ as the covariate and behavior, grade, sex, and home location as the independent variables. The results indicate clearly that the children whose behavior was aggressive and disruptive in the classroom achieved at significantly lower levels than their socially approved peers.  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