全文获取类型
收费全文 | 2996篇 |
免费 | 78篇 |
国内免费 | 22篇 |
专业分类
教育 | 2286篇 |
科学研究 | 226篇 |
各国文化 | 48篇 |
体育 | 106篇 |
综合类 | 19篇 |
文化理论 | 19篇 |
信息传播 | 392篇 |
出版年
2023年 | 12篇 |
2022年 | 23篇 |
2021年 | 44篇 |
2020年 | 39篇 |
2019年 | 71篇 |
2018年 | 85篇 |
2017年 | 115篇 |
2016年 | 84篇 |
2015年 | 69篇 |
2014年 | 109篇 |
2013年 | 645篇 |
2012年 | 103篇 |
2011年 | 113篇 |
2010年 | 90篇 |
2009年 | 121篇 |
2008年 | 93篇 |
2007年 | 115篇 |
2006年 | 117篇 |
2005年 | 92篇 |
2004年 | 92篇 |
2003年 | 68篇 |
2002年 | 82篇 |
2001年 | 42篇 |
2000年 | 41篇 |
1999年 | 34篇 |
1998年 | 39篇 |
1997年 | 39篇 |
1996年 | 37篇 |
1995年 | 47篇 |
1994年 | 25篇 |
1993年 | 24篇 |
1992年 | 32篇 |
1991年 | 22篇 |
1990年 | 30篇 |
1989年 | 16篇 |
1988年 | 23篇 |
1987年 | 17篇 |
1986年 | 17篇 |
1985年 | 26篇 |
1984年 | 23篇 |
1983年 | 22篇 |
1982年 | 14篇 |
1981年 | 20篇 |
1980年 | 8篇 |
1979年 | 13篇 |
1978年 | 10篇 |
1977年 | 15篇 |
1976年 | 14篇 |
1974年 | 7篇 |
1971年 | 7篇 |
排序方式: 共有3096条查询结果,搜索用时 15 毫秒
21.
Carmen Cole Angela R. Davis Vanessa Eyer John J. Meier 《The Journal of Academic Librarianship》2018,44(3):419-425
In 2008 Meier and Conkling first tested Google Scholar's coverage of the engineering literature against citations gathered from the Compendex database. Since that time, other studies have used the same methodology and found improvement in Google Scholar's coverage. This study uses engineering dissertations from Proquest Dissertations & Theses to create a data set of citations for the comparison of fee-based databases, Compendex and Scopus, against Google Scholar. From 1950 to 2017 Google Scholar outperformed both Compendex and Scopus in discoverability of citations in nine engineering subjects. These results have implications for collection management and information literacy program planning for librarians. 相似文献
22.
Victor Davis Hanson 《Academic Questions》2017,30(4):456-459
23.
24.
25.
26.
Qingli Lei Rose A. Mason Yan Ping Xin John L. Davis Marie David Catharine Lory 《Learning disabilities research & practice》2020,35(4):201-217
This single-case meta-analysis is the first to provide a quantitative synthesis of the published literature on mathematics word problem-solving intervention studies for English learners with learning disabilities and mathematics difficulties. A total of ten single-subject studies were included for analysis. The current study investigated the magnitude of the effect of mathematics interventions targeting the improvement of students’ mathematics word problem-solving performance, and analyzed variables that moderated this effect. Results indicate a moderate overall effect size of 0.81 (95% CI [0.71, 0.90]) on word problem-solving performance for English learners with learning disabilities and mathematics difficulties. Moderator variables such as the implementer of the interventions, instructional focus, and word problem-solving content significantly moderated the mathematics intervention effects. 相似文献
27.
Robert Davis 《Slavic & East European Information Resources》2017,18(1-2):67-73
In fall 2016, the Columbia-Cornell collaboration in the area of Slavic & East European resource coordination and sharing celebrated its sixth year. The author reviews particulars of the development, implementation, and function of this program as well as some of the challenges that face such cross-institutional efforts. 相似文献
28.
29.
Although creativity and expertise are related, they are nonetheless very different things. Expertise does not usually require creativity, but creativity generally does require a certain level of expertise. There are similarities in the relationships of both expertise and creativity to domains, however. Research has shown that just as expertise in one domain does not predict expertise in other, unrelated domains, creativity in one domain does not predict creativity in other, unrelated domains. People may be expert, and people may be creative, in many domains, or they may be expert, or creative, in few domains or none at all, and one cannot simply transfer expertise, or creativity, from one domain to another, unrelated domain. The domain specificity of creativity matters crucially for creativity training, creativity assessment, creativity research, and creativity theory. The domain specificity of creativity also means that interdisciplinary thinking, interdisciplinary collaboration, and interdisciplinary creativity are even more important than one would assume if creativity were domain general. 相似文献
30.