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   1491篇
  免费   25篇
  国内免费   3篇
教育   1109篇
科学研究   76篇
各国文化   19篇
体育   149篇
文化理论   12篇
信息传播   154篇
  2022年   8篇
  2021年   16篇
  2020年   39篇
  2019年   52篇
  2018年   62篇
  2017年   86篇
  2016年   63篇
  2015年   54篇
  2014年   45篇
  2013年   338篇
  2012年   46篇
  2011年   50篇
  2010年   35篇
  2009年   44篇
  2008年   42篇
  2007年   39篇
  2006年   32篇
  2005年   26篇
  2004年   27篇
  2003年   12篇
  2002年   30篇
  2001年   17篇
  2000年   24篇
  1999年   13篇
  1998年   16篇
  1997年   21篇
  1996年   24篇
  1995年   22篇
  1994年   26篇
  1993年   16篇
  1992年   10篇
  1991年   6篇
  1990年   13篇
  1989年   11篇
  1988年   10篇
  1987年   5篇
  1986年   12篇
  1985年   6篇
  1984年   11篇
  1983年   12篇
  1982年   8篇
  1981年   10篇
  1980年   9篇
  1979年   7篇
  1978年   10篇
  1976年   6篇
  1975年   8篇
  1974年   6篇
  1973年   5篇
  1971年   5篇
排序方式: 共有1519条查询结果,搜索用时 0 毫秒
61.
[1]视频游戏玩家或许会从消灭坏人的游戏中得到意想不到的好处——好的视力。玩“动作类”视频游戏会提高视觉能力,这对于像阅读和晚上驾驶汽车这样的任务来说至关重要,一项新的研究表明。  相似文献   
62.
63.
Within society, there are many publications regarding expectations of firm performance. These include analysis, industry insiders and ranking service. Within sports, bookmakers provide betting odds that reflect the expected outcome of matches and are determined by several factors. The purpose of this study is to analyse the determinants of expected match outcome (i.e. betting odds) and compare them to those of actual match outcome. Data from the 2010/2011 season of the German Bundesliga (soccer) are made available that are combined with betting odds for each match. Regression results show that several factors, such as difference in standing between team and opponent, difference in competitions played, difference in points earned over the last five matches, differences in standing last season and home advantage significantly influence expected match outcome. On the contrary, actual match outcome is only determined by the latter two factors.  相似文献   
64.
An important current challenge for research information providers is ensuring the automated discovery of Open Access (OA) content in hybrid journals. We found no evidence of discovery services that are able to systematically identify the crucially important free full-text availability of OA articles regardless of where and how such articles have been published (i.e., in fully OA journals or in hybrid journals). A solution is important because hybrid journals are proliferating and consequently the chances of missing OA articles is real and is happening. Nearly all of the major publishers now provide such journals in order to take advantage of recent changes in research funder requirements, and to be competitive in the new OA business model. By working with a group of scholarly publisher partners and by using standard metadata elements that publishers are already familiar with, we show a systematic and standardized manner to identify OA at the article level. Our proposal is to embed OA-related elements in the metadata freely exposed by publishers for aggregators and discovery services. For example, in the Table of Content (TOC) Really Simple Syndication feeds the publishers use to announce new journal issues and content. Based on the initial results obtained, we discuss the capabilities of our solution, and evaluate the impact produced by our application in the systematic discoverability of OA content from the participating hybrid journals, using an implementation done with the freely available journal current awareness service—JournalTOCs.  相似文献   
65.
The aim of this study was to describe the pacing profiles and packing behaviour of athletes competing in the IAAF World Half Marathon Championships. Finishing and split times were collated for 491 men and 347 women across six championships. The mean speeds for each intermediate 5 km and end 1.1 km segments were calculated, and athletes grouped according to finishing time. The best men and women largely maintained their split speeds between 5 km and 15 km, whereas slower athletes had decreased speeds from 5 km onwards. Athletes were also classified by the type of packing behaviour in which they engaged. Those who ran in packs throughout the race had smaller decreases in pace than those who did not, or who managed to do so only to 5 km. While some athletes’ reduced speeds from 15 to 20 km might have been caused by fatigue, it was also possibly a tactic to aid a fast finish that was particularly beneficial to medallists. Those athletes who ran with the same competitors throughout sped up most during the finish. Athletes are advised to identify rivals likely to have similar abilities and ambitions and run with them as part of their pre-race strategy.  相似文献   
66.
67.
Digitization has resulted in great uncertainty for journalism, leading to disruption of business models, revenue streams, media distinctions, and production practices. This uncertainty has led to many articles, reports, blog posts, and general commentary discussing the future of both journalism and the skills required by journalists to succeed in this environment. This essay analyzes these discourses, focusing specifically on the nature of technology as the sole determiner of journalism’s future, with interventions aimed at journalism education and the structure of newswork. An idealized notion of the technologically adept journalist, ready to usher in digital stability, emerges as the object of these debates and, thanks in large part to the limited scope and ahistorical character of digital discourse, obscures more persistent, systemic critiques of technology and journalism.  相似文献   
68.
Previous experiments have shown a deleterious effect of visual representations on college students’ ability to solve total- and joint-probability word problems. The present experiments used conditional-probability problems, known to be more difficult than total- and joint-probability problems. The diagram group was instructed in how to use tree diagrams to solve conditional probability problems; the equation-only group was instructed only in the formulation of equations. Results indicated that the diagram group outperformed the equation-only group on a posttest of 10 near- and far-transfer problems given immediately and as long as 1 week later (Experiment 2). In addition, when rating their experience with the training phase the equation-only group reported significantly higher levels of frustration and lower levels of perceived success than the diagram group.  相似文献   
69.
70.
This article presents a critical discourse analysis of no promo homo policies and their effects in US schools. No promo homo—short for “no promotion of homosexuality” (Eskridge, 2000 Eskridge, W.N. (2000). No promo homo: The sedimentation of antigay discourse and the channeling effect of judicial review. New York Law Review, 75, 13271411.[Web of Science ®] [Google Scholar], p. 1329)—polices have been adopted across nine states and several local school districts in the United States. They direct teachers and school officials to take a neutral position on the subject of sexual orientation and identity and often restrict or prohibit any school-based instruction, counseling, discussion, or activity that could be construed as being positive about or promoting homosexuality (Bonauto, n.d.; Cahill &; Cianciotto, 2004 Cahill, S., &; Cianciotto, J. (2004). US policy interventions that can make schools safer. Journal of Gay &; Lesbian Issues in Education, 2, 317.[Taylor &; Francis Online] [Google Scholar]; Eskridge 2000 Eskridge, W.N. (2000). No promo homo: The sedimentation of antigay discourse and the channeling effect of judicial review. New York Law Review, 75, 13271411.[Web of Science ®] [Google Scholar]). Our analysis suggests that, despite their claim to neutrality, no promo homo policies are actively harmful both to students who identify as lesbian, gay, bisexual, or transgender (LGBT) as well as to the broader school community. In an effort to ultimately promote healthier, more equitable school environments and experiences for all students, this article aims to raise awareness about the problematic effects of no promo homo policy language and the assumptions that often underlie it.  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