全文获取类型
| 收费全文 | 19171篇 |
| 免费 | 252篇 |
| 国内免费 | 23篇 |
专业分类
| 教育 | 13256篇 |
| 科学研究 | 1709篇 |
| 各国文化 | 247篇 |
| 体育 | 1876篇 |
| 综合类 | 23篇 |
| 文化理论 | 152篇 |
| 信息传播 | 2183篇 |
出版年
| 2021年 | 141篇 |
| 2020年 | 266篇 |
| 2019年 | 407篇 |
| 2018年 | 467篇 |
| 2017年 | 541篇 |
| 2016年 | 517篇 |
| 2015年 | 333篇 |
| 2014年 | 427篇 |
| 2013年 | 3730篇 |
| 2012年 | 358篇 |
| 2011年 | 420篇 |
| 2010年 | 347篇 |
| 2009年 | 380篇 |
| 2008年 | 386篇 |
| 2007年 | 354篇 |
| 2006年 | 324篇 |
| 2005年 | 317篇 |
| 2004年 | 558篇 |
| 2003年 | 437篇 |
| 2002年 | 472篇 |
| 2001年 | 314篇 |
| 2000年 | 327篇 |
| 1999年 | 276篇 |
| 1998年 | 146篇 |
| 1997年 | 179篇 |
| 1996年 | 200篇 |
| 1995年 | 188篇 |
| 1994年 | 175篇 |
| 1993年 | 172篇 |
| 1992年 | 231篇 |
| 1991年 | 247篇 |
| 1990年 | 218篇 |
| 1989年 | 260篇 |
| 1988年 | 208篇 |
| 1987年 | 260篇 |
| 1986年 | 222篇 |
| 1985年 | 288篇 |
| 1984年 | 241篇 |
| 1983年 | 228篇 |
| 1982年 | 196篇 |
| 1981年 | 174篇 |
| 1980年 | 143篇 |
| 1979年 | 215篇 |
| 1978年 | 191篇 |
| 1977年 | 164篇 |
| 1976年 | 167篇 |
| 1975年 | 141篇 |
| 1974年 | 144篇 |
| 1973年 | 123篇 |
| 1971年 | 131篇 |
排序方式： 共有10000条查询结果，搜索用时 15 毫秒
131.
132.
133.
134.
135.
136.
137.
This paper describes the procedures used at the Library of the College of Physicians of Philadelphia to divide its ninety-year-old dictionary card catalog. The division was necessitated by overcrowding, obsolete subject headings, and lack of a complete authority list which resulted in like materials being scattered throughout the catalog under several headings. Two catalogs were created: the historical-biographical catalog, representing all works published before 1950 and all works of historical or biographical nature; and the current catalog, containing all works published from 1950 on, excepting historical or biographical materials. The 1950- catalog was further divided into name and subject catalogs, and the subject section was revised according to MeSH. The project was completed in about two years. As a result, searching time has been much reduced, and the library is able to take advantage of the annual revisions of MeSH to update the subject catalog. 相似文献
138.
139.
Karyn Ogata Jones Bryan E. Denham Jeffrey K. Springston 《Journal of Applied Communication Research》2006,34(1):94-113
Drawing on components of agenda-setting theory and the two-step flow of information from mass media to news audiences, this study examines the effects of mass and interpersonal communication on breast cancer screening practices among college- and middle-aged women (n = 284). We theorized that screening behaviors among younger women would be influenced more by interpersonal sources of information while screening among middle-aged women would be more influenced by exposure to mass-mediated information. Findings supported anticipated patterns, revealing important and varying roles for both mass and interpersonal communication in the health behaviors of women. Implications for health practitioners and campaign planners, as well as recommendations for future research, are discussed. 相似文献
140.