全文获取类型
收费全文 | 349篇 |
免费 | 23篇 |
国内免费 | 2篇 |
专业分类
耳鼻咽喉 | 6篇 |
儿科学 | 15篇 |
妇产科学 | 7篇 |
基础医学 | 48篇 |
口腔科学 | 53篇 |
临床医学 | 28篇 |
内科学 | 64篇 |
皮肤病学 | 9篇 |
神经病学 | 15篇 |
特种医学 | 3篇 |
外科学 | 28篇 |
综合类 | 2篇 |
一般理论 | 1篇 |
预防医学 | 30篇 |
眼科学 | 20篇 |
药学 | 11篇 |
中国医学 | 4篇 |
肿瘤学 | 30篇 |
出版年
2023年 | 3篇 |
2022年 | 9篇 |
2021年 | 13篇 |
2020年 | 7篇 |
2019年 | 15篇 |
2018年 | 11篇 |
2017年 | 9篇 |
2016年 | 10篇 |
2015年 | 13篇 |
2014年 | 17篇 |
2013年 | 22篇 |
2012年 | 31篇 |
2011年 | 36篇 |
2010年 | 16篇 |
2009年 | 18篇 |
2008年 | 17篇 |
2007年 | 15篇 |
2006年 | 10篇 |
2005年 | 16篇 |
2004年 | 12篇 |
2003年 | 9篇 |
2002年 | 5篇 |
2001年 | 2篇 |
2000年 | 5篇 |
1999年 | 4篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 3篇 |
1994年 | 2篇 |
1993年 | 3篇 |
1989年 | 3篇 |
1988年 | 4篇 |
1987年 | 2篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1976年 | 1篇 |
1975年 | 2篇 |
1974年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
1970年 | 3篇 |
1969年 | 1篇 |
1968年 | 1篇 |
1967年 | 3篇 |
1966年 | 4篇 |
1965年 | 1篇 |
1949年 | 1篇 |
排序方式: 共有374条查询结果,搜索用时 46 毫秒
1.
2.
3.
Hananyah Glaubman Israel Orbach Ygal Gross Orit Aviram Irene Frieder Meira Frieman Odeda Pelled 《Psychophysiology》1979,16(5):467-470
The hypothesis that a load on focal attention prior to sleep results in subsequent changes in sleep patterns was investigated. Eight females and 2 males slept in the laboratory for 4 nights: 2 adaptation nights, 1 experimental night preceded by a focal attention load, and 1 control night preceded by relaxed activity. On the experimental night, time in bed, total sleep time, and stage REM sleep were significantly longer than on the control night. The results support the hypothesis and suggest that attention during REM sleep has a unique character. 相似文献
4.
Orna Geyer Anat Loewenstein Bruria Shalmon Meira Neudorfer Moshe Lazar 《Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie》1995,233(7):448-451
Background: Since dapiprazole on alpha-adrenergic agent, produces miosis by paralyzing the dilator muscle, and pilocarpine, a parasympathetic drug, causes miosis by affecting the sphincter, we speculated that the two drugs might have additive effects. Methods: The additive miotic actions of pilocarpine 2% and dapiprazole 0.5% were evaluated by comparing the effects of two drugs given together and alone on the reversal of mydriasis induced by tropicamide (0.5%) and phenylephrine (10%) in one eye each of 60 healthy volunteers. Results: Dapiprazole and pilocarpine together induced miosis significantly faster than each drug alone, showing additive effects. Conclusion: Co-administration of dapiprazole and pilocarpine at the end of the eye examination will induce fast pupillary constriction, which might be useful in preventing the development of an acute attack of angle-closure glaucoma in patients with anatomically narrow angles. 相似文献
5.
6.
7.
8.
9.
10.
Suzana Meira Ribeiro César de la Fuente-Nú?ez Beverlie Baquir Célio Faria-Junior Octávio L. Franco Robert E. W. Hancock 《Antimicrobial agents and chemotherapy》2015,59(7):3906-3912
Multidrug-resistant carbapenemase-producing Klebsiella pneumoniae (KpC) strains are becoming a common cause of infections in health care centers. Furthermore, Klebsiella can develop multicellular biofilms, which lead to elevated adaptive antibiotic resistance. Here, we describe the antimicrobial and antibiofilm activities of synthetic peptides DJK-5, DJK-6, and 1018 against five KpC isolates. Using static microplate assays, it was observed that the concentration required to prevent biofilm formation by these clinical isolates was below the MIC for planktonic cells. More-sophisticated flow cell experiments confirmed the antibiofilm activity of the peptides against 2-day-old biofilms of different KpC isolates, and in some cases, the peptides induced significant biofilm cell death. Clinically relevant combinations of DJK-6 and β-lactam antibiotics, including the carbapenem meropenem, also prevented planktonic growth and biofilm formation of KpC strain1825971. Interestingly, peptide DJK-6 was able to enhance, at least 16-fold, the ability of meropenem to eradicate preformed biofilms formed by this strain. Using peptide DJK-6 to potentiate the activity of β-lactams, including meropenem, represents a promising strategy to treat infections caused by KpC isolates. 相似文献