全文获取类型
收费全文 | 1180篇 |
免费 | 19篇 |
国内免费 | 1篇 |
专业分类
教育 | 873篇 |
科学研究 | 95篇 |
各国文化 | 17篇 |
体育 | 86篇 |
综合类 | 1篇 |
文化理论 | 10篇 |
信息传播 | 118篇 |
出版年
2022年 | 10篇 |
2021年 | 17篇 |
2020年 | 23篇 |
2019年 | 32篇 |
2018年 | 51篇 |
2017年 | 45篇 |
2016年 | 49篇 |
2015年 | 20篇 |
2014年 | 30篇 |
2013年 | 238篇 |
2012年 | 27篇 |
2011年 | 35篇 |
2010年 | 20篇 |
2009年 | 21篇 |
2008年 | 31篇 |
2007年 | 26篇 |
2006年 | 28篇 |
2005年 | 14篇 |
2004年 | 25篇 |
2003年 | 17篇 |
2002年 | 16篇 |
2001年 | 13篇 |
2000年 | 24篇 |
1999年 | 19篇 |
1998年 | 11篇 |
1997年 | 15篇 |
1996年 | 15篇 |
1995年 | 20篇 |
1994年 | 20篇 |
1993年 | 11篇 |
1992年 | 18篇 |
1991年 | 15篇 |
1990年 | 16篇 |
1989年 | 11篇 |
1988年 | 7篇 |
1987年 | 6篇 |
1986年 | 8篇 |
1985年 | 11篇 |
1984年 | 14篇 |
1983年 | 12篇 |
1982年 | 11篇 |
1981年 | 14篇 |
1980年 | 8篇 |
1978年 | 9篇 |
1976年 | 7篇 |
1975年 | 6篇 |
1972年 | 5篇 |
1927年 | 6篇 |
1923年 | 6篇 |
1921年 | 4篇 |
排序方式: 共有1200条查询结果,搜索用时 15 毫秒
121.
Steve Mcdonald Libby Taylor Clive Adams 《Health information and libraries journal》1999,16(3):151-156
Journal coverage is one factor that affects the retrieval of relevant information from bibliographic databases. The aims of this study were to investigate the coverage of databases for psychiatry journals, and to assess the overlap between databases. Psychiatry journals were identified using Ulrich’s International Periodicals Directory and then analysed to see which bibliographic databases indexed the most journals. A total of 213 abstracting and indexing services were listed as indexing at least one of the 977 psychiatry journals identified. The four most frequently cited databases (PsycLIT, EMBASE, BIOSIS and MEDLINE) indexed 506 (52%) of the psychiatry journals. Of these 506 journals, PsycLIT indexed 367 (73%), EMBASE 337 (67%), BIOSIS 243 (48%) and MEDLINE 236 (47%). Combining the databases with the highest yields (PsycLIT and EMBASE) increased the number of journals indexed to 461 (91%). The four databases combined accounted for 90% of all psychiatry journals found to be indexed by at least one abstracting and indexing service. More than 400 journals were not indexed at all. Variations in the overlap between PsycLIT, EMBASE, BIOSIS and MEDLINE, and the high proportion (35%) of journals indexed in only one of these four databases emphasize the importance of searching more than one or even two databases to ensure optimal coverage of the literature. 相似文献
122.
123.
Janice Taylor Gordon 《Journal of The Franklin Institute》2010,347(4):708-718
Nottebohm is noted for his demonstration of Central Neurogenesis in Adult Avians, with Concomitant Implications for the Theory of Memory and for the Future of Neurological Repair in Injury and Disease. 相似文献
124.
125.
126.
Arlene G. Taylor 《Cataloging & classification quarterly》2016,54(8):521-536
In this interview, conducted via email during August 2016, Dr. Arlene G. Taylor discusses her career as a cataloger, professor of cataloging and classification, and her work in professional associations. Topics include her early cataloging and teaching experiences, changes in both cataloging practice and the teaching of cataloging, subject analysis, and “aboutness” as compared with form/genre access, professional experiences outside the United States, and the future of MLIS programs. 相似文献
127.
Heidi R. Thornton Joanna Miller Lee Taylor Charli Sargent Michele Lastella 《Journal of sports sciences》2018,36(13):1476-1484
Currently, very little is known about the impact of short- or long-haul air travel on the sleep and wellbeing of wheelchair basketball athletes. Eleven national wheelchair basketball athletes wore actigraphy monitors prior, during, and after air travel to the United Kingdom. Upon arrival, participants rated their subjective jet-lag, fatigue, and vigor. Individuals traveled to the United Kingdom from different locations in Australia, the United States, and Europe and were categorised according to travel length [LONG (up to 30.2 h) or SHORT (up to 6.5 h)]. Linear mixed models determined effects of travel length on sleep and subjective ratings of jet-lag, fatigue, and vigor. During competition, subjective fatigue and jet-lag were substantially higher (ES = 0.73; ±0.77) and (ES = 0.57; ±0.60), subjective vigor was lower (ES = 1.94; ±0.72), and get-up time was earlier (ES = 0.57; ±0.60) for LONG when compared to SHORT. Travelling greater distances by airplane had a larger effect on subjective ratings of jet-lag, fatigue and vigor, rather than sleep. Irrespective of travel group, sleep and subjective responses were compromised, reflecting the travel requirements, competition-mediated influences, and/or due to a change in environment. 相似文献
128.
129.
130.