首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   209210篇
  免费   2833篇
  国内免费   85篇
耳鼻咽喉   1825篇
儿科学   7525篇
妇产科学   3642篇
基础医学   21865篇
口腔科学   2329篇
临床医学   15372篇
内科学   36799篇
皮肤病学   1417篇
神经病学   19928篇
特种医学   10551篇
外国民族医学   12篇
外科学   33587篇
综合类   2596篇
一般理论   8篇
预防医学   20220篇
眼科学   3974篇
药学   11722篇
中国医学   683篇
肿瘤学   18073篇
  2022年   242篇
  2021年   469篇
  2020年   292篇
  2019年   449篇
  2018年   22383篇
  2017年   17729篇
  2016年   19983篇
  2015年   1491篇
  2014年   1516篇
  2013年   1765篇
  2012年   8533篇
  2011年   22454篇
  2010年   19711篇
  2009年   12389篇
  2008年   20809篇
  2007年   23160篇
  2006年   2103篇
  2005年   3735篇
  2004年   4848篇
  2003年   5634篇
  2002年   3878篇
  2001年   1279篇
  2000年   1373篇
  1999年   1042篇
  1998年   650篇
  1997年   603篇
  1996年   434篇
  1995年   392篇
  1994年   351篇
  1993年   289篇
  1992年   585篇
  1991年   662篇
  1990年   683篇
  1989年   599篇
  1988年   593篇
  1987年   494篇
  1986年   469篇
  1985年   453篇
  1984年   377篇
  1983年   284篇
  1982年   230篇
  1980年   239篇
  1979年   334篇
  1978年   253篇
  1977年   254篇
  1976年   234篇
  1975年   236篇
  1974年   278篇
  1973年   219篇
  1972年   229篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
1.
2.
3.
4.
5.
Anliegen dieses Artikels ist, die besondere Qualit?t und Chance von Psychodramatischer Supervision zu beschreiben, und gleichzeitig die Kompatibilit?t und fruchtbare Erg?nzung des Moreno’schen Ansatzes innerhalb des Formats Supervision innerhalb der Sozialen Arbeit auf zuzeigen. Dies wird anhand von 2 ausgew?hlten Praxisbeispielen dargestellt. Die Handlungskompetenz von Supervisandinnen und Supervisanden kann durch einfache psychodramatische Interventionen erweitert werden. Handlungshemmung wird überwunden, Spontaneit?t und Kreativit?t kommen ins Laufen und er?ffnen Perspektiven.  相似文献   
6.
7.
Relationship-centered care reflects both knowing and feeling: the knowledge that physician and patient bring from their respective domains of expertise, and the physician’s and patient’s experience, expression, and perception of emotions during the medical encounter. These processes are conveyed and reciprocated in the care process through verbal and nonverbal communication. We suggest that the emotional context of care is especially related to nonverbal communication and that emotion-related communication skills, including sending and receiving nonverbal messages and emotional self-awareness, are critical elements of high-quality care. Although nonverbal behavior has received far less study than other care processes, the current review argues that it holds significance for the therapeutic relationship and influences important outcomes including satisfaction, adherence, and clinical outcomes of care.  相似文献   
8.
INTRODUCTION: The purpose of the study is to evaluate experimentally the quality of the primary stability achieved in treating low subcondylar fractures by means of three different osteosynthesis devices. MATERIAL AND METHODS: The devices, a standard four-hole plate, an axial lag screw and a three-dimensional rectangular plate were tested on fresh isolated human mandibles. Testing was done on a test bench by reproducing static biting exercises between the first molars on the side of the fracture. The quality of the osteosynthesis was assessed by measuring the macroscopic amount of fragment displacement and on the device's ability to diffuse the mechanical strain within the fractured area by photoelastic stress analysis. RESULTS: The straight plates provided the worst restoration. This was explained by the unfavourable position of the plate along compression lines. The axial lag screws allowed average stability. This was due to the difficulty of intra-medullary positioning of the screw, and by the compression of the fracture line. Rectangular plates allowed good stability associated with rather good restitution of the strains. These good results were assigned to the shape of the plate, one of its arms approximating the tensile strain lines. CONCLUSION: Positioning and shape of the osteosynthesis device are of prime importance for condylar fracture stabilization. None of the three tested devices was optimal but the three-dimensional plate was the best. There is a need to develop the geometry of new plates.  相似文献   
9.
The frequency and pathophysiology of freezing of gait (FoG) in atypical parkinsonism is unknown. We analysed the frequency of FoG in postmortem-confirmed atypical parkinsonian disorders (APD) comprising corticobasal degeneration (CBD), dementia with Lewy bodies (DLB), multiple system atrophy (MSA), and progressive supranuclear palsy (PSP). Sixty-six patients with pathologically confirmed APD (CBD, n = 13; DLB, n = 14; MSA, n = 15; PSP, n = 24) formed the basis for a multicenter clinicopathological study. Clinical features at first and last clinical visit were abstracted from patient records on standardized forms following strict instructions. At the first visit (median 36 months after symptom onset), 24% of APD had FoG (CBD, 8%; DLB, 21%; PSP, 25%; MSA, 40%). Logistic regression analysis showed a significant association of FoG and urinary incontinence (P = 0.04) at first visit. At last visit, 47% of APD had FoG (CBD, 25%; PSP, 53%; DLB, 54%; MSA, 54%). Clinicopathological correlation based on routine postmortem examination failed to identify a consistent neuropathological substrate of FoG. This study demonstrates that (1) FoG is common in APD, and (2) urinary incontinence is significantly associated with FoG in these disorders. Whether FoG and urinary incontinence share similar neuropathological substrates remains to be determined by future studies.  相似文献   
10.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号