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   339748篇
  免费   44455篇
  国内免费   2075篇
耳鼻咽喉   4961篇
儿科学   8852篇
妇产科学   6774篇
基础医学   34723篇
口腔科学   9360篇
临床医学   49861篇
内科学   75141篇
皮肤病学   6476篇
神经病学   35163篇
特种医学   11592篇
外国民族医学   11篇
外科学   54470篇
综合类   3548篇
现状与发展   40篇
一般理论   318篇
预防医学   33616篇
眼科学   8487篇
药学   17725篇
  6篇
中国医学   365篇
肿瘤学   24789篇
  2024年   846篇
  2023年   6022篇
  2022年   3340篇
  2021年   7783篇
  2020年   8093篇
  2019年   7019篇
  2018年   12307篇
  2017年   11261篇
  2016年   12233篇
  2015年   13251篇
  2014年   18205篇
  2013年   22926篇
  2012年   21145篇
  2011年   21829篇
  2010年   16764篇
  2009年   17741篇
  2008年   19550篇
  2007年   19389篇
  2006年   20352篇
  2005年   18957篇
  2004年   17346篇
  2003年   15915篇
  2002年   14874篇
  2001年   3775篇
  2000年   2631篇
  1999年   3846篇
  1998年   4958篇
  1997年   4322篇
  1996年   3988篇
  1995年   3642篇
  1994年   2740篇
  1993年   2429篇
  1992年   1951篇
  1991年   1733篇
  1990年   1465篇
  1989年   1443篇
  1988年   1432篇
  1987年   1285篇
  1986年   1278篇
  1985年   1234篇
  1984年   1436篇
  1983年   1390篇
  1982年   1573篇
  1981年   1494篇
  1980年   1256篇
  1979年   766篇
  1978年   859篇
  1977年   747篇
  1976年   662篇
  1974年   539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.
3.
4.
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   
5.
Academic output is just one aspect of a successful career as a plastic surgeon. However, for those with a strong interest in academia, the academic output of a department will likely be a key factor when deciding how to rank jobs. The aim of this study was to quantify and rank the academic output of plastic surgery units across the UK and Ireland. The Institute for Scientific Information (ISI) Web of Science Bibliometric analysis tool was used to collate cumulative (1950–2016), 10 year (2006–2016) and 3 years (2013–2015) research output data for plastic surgery units in the UK and Ireland. Sixty-six plastic surgery units were identified. Departments were ranked for each time period according to the number of papers produced, number of citations (Nc) and h-index (a measure of the impact of scientific output). The top 3 departments for number of papers in the last 10 years were The Royal Free Hospital, London (226) Broomfield Hospital, Chelmsford (218), and Morriston Hospital and Swansea (188). The top 3 for h-number were The Royal Free Hospital (21) Wythenshawe Hospital, Manchester (18) and Morriston Hospital (17). Academic output varies across plastic surgery units in the UK and Ireland. A number of departments have consistently maintained high academic outputs across the years and will be of interest to surgeons hoping to pursue a career in academia.  相似文献   
6.
7.
8.
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