全文获取类型
收费全文 | 1588篇 |
免费 | 43篇 |
国内免费 | 3篇 |
专业分类
教育 | 1182篇 |
科学研究 | 127篇 |
各国文化 | 30篇 |
体育 | 126篇 |
文化理论 | 21篇 |
信息传播 | 148篇 |
出版年
2023年 | 8篇 |
2022年 | 10篇 |
2021年 | 13篇 |
2020年 | 27篇 |
2019年 | 44篇 |
2018年 | 51篇 |
2017年 | 66篇 |
2016年 | 42篇 |
2015年 | 46篇 |
2014年 | 42篇 |
2013年 | 358篇 |
2012年 | 43篇 |
2011年 | 51篇 |
2010年 | 33篇 |
2009年 | 40篇 |
2008年 | 45篇 |
2007年 | 34篇 |
2006年 | 36篇 |
2005年 | 32篇 |
2004年 | 34篇 |
2003年 | 40篇 |
2002年 | 33篇 |
2001年 | 17篇 |
2000年 | 19篇 |
1999年 | 28篇 |
1998年 | 20篇 |
1997年 | 20篇 |
1996年 | 20篇 |
1995年 | 16篇 |
1994年 | 12篇 |
1993年 | 19篇 |
1992年 | 20篇 |
1991年 | 16篇 |
1990年 | 18篇 |
1989年 | 21篇 |
1988年 | 12篇 |
1987年 | 19篇 |
1986年 | 13篇 |
1985年 | 16篇 |
1984年 | 14篇 |
1983年 | 18篇 |
1982年 | 22篇 |
1981年 | 14篇 |
1980年 | 10篇 |
1979年 | 13篇 |
1978年 | 15篇 |
1977年 | 7篇 |
1976年 | 13篇 |
1974年 | 7篇 |
1964年 | 6篇 |
排序方式: 共有1634条查询结果,搜索用时 270 毫秒
1.
Cerebral activity, as reflected by power in the alpha waveband (8-13 Hz), was examined prior to the performance of three tasks with different effort and accuracy requirements. The study aimed to further investigate changes in activity observed in an earlier study in which expert karate performers exhibited significant increases in alpha band power during preparation for a training task. In contrast to the earlier research, the high effort task produced a significant decrease in 'alpha' power prior to performance. 'Alpha' power prior to the high accuracy task showed significant differences mediated by the outcome. Successful performance was preceded by higher levels of 'alpha' power than unsuccessful attempts. The reported use of a cognitive strategy on the first task produced a significant difference in activity, lower alpha power being associated with the use of such a technique. 相似文献
2.
3.
报纸公信力的定义和测量:指标建立 总被引:1,自引:1,他引:0
根据《韦伯新学院词典》的注释,"令人可信的(to be credible)"被定义为:能够提供一些合乎逻辑的,使人信服的理由。然而,一些报社的编辑表达了另外的思考。他们认为,"公信力"这个概念应该增加一个额外的维度,即报纸在社区中保持和谐和领导地位。 相似文献
4.
5.
6.
The Dynamics of Opinion Formation in Local Popular Referendums: Why the Dutch Always Say No 总被引:1,自引:0,他引:1
There is growing research on voting behavior in referendums.However, the dynamics of opinion formation in popular referendums,referendums initiated by the electorate to approve or rejectdecisions made by representative bodies, has not yet been studied.This is especially unfortunate as voting decisions in popularreferendums differ from those in other referendums in interestingways. Opinion formation can be a very dynamic process in popularreferendums, making the referendum campaign crucial. This paperstudies the dynamics of opinion formation in popular referendumsand relates them to particular characteristics of the campaignsand the issues at hand. Based on the literature, we consideredthe effects of the intensity of the yes and no campaigns, familiaritywith the issue, and partisan cues. Our study uses content analysisdata and data from public opinion surveys dealing with variouspopular referendums held in the Netherlands. The study revealedseveral factors that contributed to the volatility of opinionsin the referendum campaigns: the issue (new and did not fittraditional political schemes), lack of support from societaland community organizations for the position of the local authorities,and low profile campaigns on the part of local authorities.While some of these factors are general and may play a rolein referendums everywhere, some can be considered typicallyDutch, related to the characteristics of popular referendumsin the Netherlands and the countrys political system. 相似文献
7.
Philip Kwaku Kankam 《International Information and Library Review》2018,50(2):88-93
The Internet clearly presents the opportunity for students to expand their knowledge at a fast pace, since they are able to access enormous amount of information. However, accessing the Internet also has its downside since not all information is of good quality. The study explored how 12th grade students at a high school in Ghana evaluated online information sources. These students and the head of the Information Communication Technology department respond to self-administered questionnaires and a semi-structured interview, respectively. The study found that most of the high school students did some kind of an evaluation of online information sources, however, they were not applying the right criteria. The study further revealed that students were not introduced to evaluation criteria at school and this had contributed to the gap in their evaluation competencies. 相似文献
8.
9.
10.