全文获取类型
收费全文 | 31323篇 |
免费 | 370篇 |
国内免费 | 19篇 |
专业分类
教育 | 21890篇 |
科学研究 | 2870篇 |
各国文化 | 569篇 |
体育 | 2803篇 |
综合类 | 10篇 |
文化理论 | 269篇 |
信息传播 | 3301篇 |
出版年
2021年 | 300篇 |
2020年 | 468篇 |
2019年 | 678篇 |
2018年 | 901篇 |
2017年 | 878篇 |
2016年 | 846篇 |
2015年 | 518篇 |
2014年 | 682篇 |
2013年 | 5649篇 |
2012年 | 650篇 |
2011年 | 692篇 |
2010年 | 554篇 |
2009年 | 579篇 |
2008年 | 677篇 |
2007年 | 629篇 |
2006年 | 575篇 |
2005年 | 504篇 |
2004年 | 551篇 |
2003年 | 411篇 |
2002年 | 417篇 |
2001年 | 574篇 |
2000年 | 651篇 |
1999年 | 556篇 |
1998年 | 325篇 |
1997年 | 321篇 |
1996年 | 365篇 |
1995年 | 301篇 |
1994年 | 314篇 |
1993年 | 290篇 |
1992年 | 449篇 |
1991年 | 485篇 |
1990年 | 458篇 |
1989年 | 493篇 |
1988年 | 419篇 |
1987年 | 416篇 |
1986年 | 408篇 |
1985年 | 504篇 |
1984年 | 390篇 |
1983年 | 400篇 |
1982年 | 324篇 |
1981年 | 314篇 |
1980年 | 328篇 |
1979年 | 455篇 |
1978年 | 333篇 |
1977年 | 316篇 |
1976年 | 262篇 |
1975年 | 245篇 |
1974年 | 255篇 |
1973年 | 241篇 |
1971年 | 237篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
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
102.
John J. Riemer 《Cataloging & classification quarterly》2018,56(2-3):118-127
ABSTRACTThe career path and significant professional accomplishments of librarian Valerie Bross (1954–2016) are described in this article. The awards and recognition she received are recounted and the influence of outside activities on her career is assessed. An attempt is made to capture what she was like as a professional, as well as what her unique characteristics were. A bibliography of her writings and a photograph are included. 相似文献
103.
I. V. Zibareva L. Yu. Ilina B. L. Alperin 《Scientific and Technical Information Processing》2018,45(2):106-109
The current state of the Russian Science Citation Index is analyzed. Several areas for its further development identified by long-standing active users, such as data searching, refinement, and storage; current user alerts; data input with the Science Index license; patent information; and the application programming interface (API) are investigated. 相似文献
104.
Inconsistency is often considered an indication of deceit. The conceptualization of consistency used in deception research, however, has not made a clear distinction between two concepts long differentiated by philosophers: coherence and correspondence. The existing literature suggests that coherence is not generally useful for deception detection. Correspondence, however, appears to be quite useful. The present research developed a model of how correspondence is utilized to make judgments, and this article reports on four studies designed to elaborate on the model. The results suggest that judges attend strongly to correspondence and that they do so in an additive fashion. As noncorrespondent information accumulates, an increasingly smaller proportion of judges make truthful assessments of guilty suspects. This work provides a basic framework for examining how information is utilized to make deception judgments and forms the correspondence and coherence module of truth-default theory. 相似文献
105.
Critical communication pedagogy and service learning in a mixed-method communication research course
ABSTRACTCourse: Mixed-Method Communication Research MethodsObjective: The purpose of this semester-long activity is to provide students with opportunities to cultivate mixed-method communication research skills through a social justice-informed service-learning format. Completing this course, students will be able to: recognize the unique strengths of quantitative and qualitative research methods; locate, evaluate, and utilize scholarly literature for a literature review; conduct an original research project using quantitative and qualitative research methods to gather and analyze data; and raise self and community awareness about a social issue through collaboration with a community organization. 相似文献
106.
107.
108.
109.
110.