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   123217篇
  免费   31319篇
  国内免费   3400篇
耳鼻咽喉   2595篇
儿科学   2780篇
妇产科学   2554篇
基础医学   5698篇
口腔科学   5479篇
临床医学   29437篇
内科学   28291篇
皮肤病学   3461篇
神经病学   13250篇
特种医学   4528篇
外国民族医学   22篇
外科学   20337篇
综合类   4869篇
现状与发展   49篇
一般理论   4篇
预防医学   14788篇
眼科学   2795篇
药学   3825篇
  35篇
中国医学   1583篇
肿瘤学   11556篇
  2024年   858篇
  2023年   5495篇
  2022年   2377篇
  2021年   4320篇
  2020年   6522篇
  2019年   2907篇
  2018年   7841篇
  2017年   8165篇
  2016年   8689篇
  2015年   9274篇
  2014年   12014篇
  2013年   13246篇
  2012年   5469篇
  2011年   5453篇
  2010年   8010篇
  2009年   10017篇
  2008年   4614篇
  2007年   3610篇
  2006年   4729篇
  2005年   3408篇
  2004年   2178篇
  2003年   1779篇
  2002年   1673篇
  2001年   2436篇
  2000年   1761篇
  1999年   2362篇
  1998年   2569篇
  1997年   2374篇
  1996年   2348篇
  1995年   2054篇
  1994年   1357篇
  1993年   1063篇
  1992年   962篇
  1991年   790篇
  1990年   645篇
  1989年   645篇
  1988年   645篇
  1987年   470篇
  1986年   441篇
  1985年   355篇
  1984年   284篇
  1983年   327篇
  1982年   247篇
  1981年   214篇
  1980年   126篇
  1979年   78篇
  1978年   124篇
  1977年   116篇
  1976年   84篇
  1972年   71篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Despite orientation and mobility (O&M) being a significant factor determining quality of life of people with low vision or blindness, there are no gold standard measures or agreement on how to measure O&M performance. In the first part of this systematic review, an inventory of O&M outcome measures used by recent studies to assess the performance of orientation and/or mobility of adults with vision impairment (low vision and blindness) is presented. A wide variety of O&M outcome measures have been implemented in different fields of study, such as epidemiologic research and interventional studies evaluating training, assistive technology, vision rehabilitation and vision restoration. The most frequent aspect of outcome measures is efficiency such as time, distance, speed and percentage of preferred walking speed, followed by obstacle contacts and avoidance, and dis/orientation and veering. Other less commonly used aspects are target identification, safety and social interaction and self-reported outcome measures. Some studies employ sophisticated equipment to capture and analyse O&M performance in a laboratory setting, while others carry out their assessment in real-world indoor or outdoor environments. In the second part of this review, the appropriateness of implementing the identified outcome measures to assess O&M performance in clinical and functional O&M practice is evaluated. Nearly a half of these outcome measures meet all four criteria of face validity (either clinical or functional), responsiveness, reliability and feasibility and have the potential to be implemented in clinical or functional O&M practice. The findings of this review confirm the complicated and dynamic nature of O&M. Multiple measures are required in any evaluation of O&M performance to facilitate holistic assessment of O&M abilities and limitations of each individual.  相似文献   
2.
Although depression is associated to physical discomfort, meanings of the body in depression are rarely addressed in clinical research. Drawing on the concept of the lived body, this study explores depression as an embodied phenomenon. Using a hermeneutic phenomenological approach, the analysis of narrative‐based interviews with 11 depressed adults discloses a thematic structure of an embodied process of an ambiguous striving against fading. Five subthemes elicit different dimensions of this process, interpreted as disabling or enabling: feeling estranged, feeling confined, feeling burdensome, sensing life and seeking belongingness. In relation to clinical practice, we suggest that the interdisciplinary team can focus on enhancing the enabling dimensions, for example through guided physical activities to support the patient to feel more alive, capable and connected. Moreover, we suggest that the treatment process benefits from an increased awareness of the ambiguity in the patient's struggle, acknowledging both destructive and recharging elements of the withdrawing, and the perceived conflict in‐between.  相似文献   
3.
4.
5.
6.
7.
8.
The human visual system is amenable to a number of adaptive processes; one such process, or collection of processes, is the adaptation to blur. Blur adaptation can be observed as an improvement in vision under degraded conditions, and these changes occur relatively rapidly following exposure to blur. The potential important future directions of this research area and the clinical implications of blur adaptation are discussed.  相似文献   
9.
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