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   634篇
  免费   6篇
教育   430篇
科学研究   53篇
各国文化   8篇
体育   36篇
文化理论   28篇
信息传播   85篇
  2022年   4篇
  2021年   7篇
  2020年   12篇
  2019年   13篇
  2018年   19篇
  2017年   24篇
  2016年   16篇
  2015年   11篇
  2014年   19篇
  2013年   163篇
  2012年   10篇
  2011年   17篇
  2010年   8篇
  2009年   12篇
  2008年   7篇
  2007年   10篇
  2006年   13篇
  2005年   13篇
  2004年   12篇
  2003年   16篇
  2002年   22篇
  2001年   14篇
  2000年   10篇
  1999年   13篇
  1998年   9篇
  1997年   9篇
  1996年   8篇
  1994年   8篇
  1993年   3篇
  1992年   5篇
  1991年   7篇
  1990年   4篇
  1989年   8篇
  1988年   3篇
  1987年   3篇
  1985年   5篇
  1984年   7篇
  1983年   10篇
  1982年   5篇
  1981年   4篇
  1980年   8篇
  1979年   7篇
  1977年   11篇
  1976年   3篇
  1975年   3篇
  1974年   5篇
  1973年   5篇
  1971年   4篇
  1967年   4篇
  1966年   4篇
排序方式: 共有640条查询结果,搜索用时 15 毫秒
21.
A brief and constructive criticism is offered of the recent study (see preceding paper) which successfully adopted and adapted the Sussex SAPPHO ‘pair comparison’ technique to the investigation of twelve success-failure pairs in the Hungarian electronics industry. Despite some differences in methodology and differences in the industrial and political environments in which the two studies were made, the results of the Hungarian SAPPHO and the Sussex SAPPHO are remarkably similar.  相似文献   
22.
23.
24.
When readers search for misspellings in a proofreading task or for a letter in a letter detection task, they are more likely to omit function words than content words. However, with misspelled words, previous findings for the letter detection task were mixed. In two experiments, the authors tested the functional equivalence of both tasks. Results reveal similar patterns of omissions for both search tasks when misspellings were produced by substituting one letter for another: There were more omissions for function words than for content words. However, when two letters were transposed, differences between the two tasks emerged. It is possible to conclude that letter detection and proofreading are based on common cognitive processes but the nature of the target can modulate the effects. Results are interpreted in light of the attentional disengagement model and the guidance organization model of the missing-letter effect.  相似文献   
25.
We propose a novel form of nonlinear stochastic filtering based on an iterative evaluation of a Kalman-like gain matrix computed within a Monte Carlo scheme as suggested by the form of the parent equation of nonlinear filtering (Kushner–Stratonovich equation) and retains the simplicity of implementation of an ensemble Kalman filter (EnKF). The numerical results, presently obtained via EnKF-like simulations with or without a reduced-rank unscented transformation, clearly indicate remarkably superior filter convergence and accuracy vis-à-vis most available filtering schemes and eminent applicability of the methods to higher dimensional dynamic system identification problems of engineering interest.  相似文献   
26.
27.
This is a list of books that should be available in either the hospital emergency room or the medical library. The forty-nine books listed are divided into the following categories: General, Surgery and Trauma, Burns, Cardiology, Dentistry, Disaster Medicine, First Aid, Geriatrics, Obstetrics, Pediatrics, Psychiatry, Toxicology, and Transportation. An asterisk has been placed before twelve books that are particularly recommended for the hospital emergency room as well as the medical library. The latest edition is given for each book, and, unless otherwise noted, each has been annotated by one of the authors.  相似文献   
28.
29.
Introduction     
Gemelli  Giuliana  Macleod  Roy 《Minerva》2003,41(2):95-99
  相似文献   
30.
The authors of this article come from a range of professional backgrounds in agencies across Europe. Samuel Fernandez lectures at the University of Oviedo in Spain; Janos Kovari works at the Kerek Vilag Foundation in Hungary; Paola Vulterini works for Capodarco, a service provider in Italy; and Val Williams is a researcher at the Norah Fry Research Centre at the University of Bristol. Using funding from the European Commission, the team undertook research into the curriculum provided for adults with learning difficulties in a variety of centres in their four home countries. Fernandez, Kovari, Vulterini and Williams find some interesting similarities and some significant differences in provision. They also seek the views of service users about a common core curriculum derived from their research and present a case for further work in this important area.  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