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   86066篇
  免费   6138篇
  国内免费   320篇
耳鼻咽喉   826篇
儿科学   3100篇
妇产科学   2329篇
基础医学   12299篇
口腔科学   1234篇
临床医学   9442篇
内科学   17840篇
皮肤病学   1640篇
神经病学   9410篇
特种医学   1739篇
外国民族医学   4篇
外科学   7396篇
综合类   626篇
现状与发展   1篇
一般理论   85篇
预防医学   9480篇
眼科学   1357篇
药学   6266篇
中国医学   159篇
肿瘤学   7291篇
  2024年   97篇
  2023年   875篇
  2022年   1538篇
  2021年   3530篇
  2020年   2061篇
  2019年   2798篇
  2018年   3107篇
  2017年   2398篇
  2016年   2711篇
  2015年   2892篇
  2014年   3781篇
  2013年   4959篇
  2012年   7282篇
  2011年   7488篇
  2010年   3946篇
  2009年   3360篇
  2008年   5808篇
  2007年   5786篇
  2006年   5268篇
  2005年   4855篇
  2004年   4433篇
  2003年   3901篇
  2002年   3687篇
  2001年   460篇
  2000年   370篇
  1999年   470篇
  1998年   641篇
  1997年   524篇
  1996年   364篇
  1995年   362篇
  1994年   327篇
  1993年   273篇
  1992年   205篇
  1991年   151篇
  1990年   135篇
  1989年   148篇
  1988年   126篇
  1987年   125篇
  1986年   116篇
  1985年   96篇
  1984年   115篇
  1983年   105篇
  1982年   107篇
  1981年   90篇
  1980年   76篇
  1979年   39篇
  1978年   44篇
  1977年   45篇
  1976年   28篇
  1974年   29篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
Journal of Behavioral Medicine - Evidence supports the use of graphic warnings to educate the public about the health harms of smoking and suggests warnings eliciting negative emotional responses...  相似文献   
2.
3.
Forgiveness has been found one substantial element in the recovery for women survivors from intimate partner violence following the termination of the abusive relationship. To further investigate the details of forgiveness in this specific context, the present study explored the process of forgiveness using grounded theory. In-depth and semi-structured interviews were conducted with 25 Chinese women survivors of IPV. The findings suggest that forgiveness is a strength-based process including empowerment, transformation, and integration phases. In the empowerment phase, survivors obtain strength at the intrapersonal, behavioural, and interpersonal levels. In the transformation phase, survivors complete cognitive transformation for their IPV experiences and emotional transformation towards former partners. In the integration phase, survivors—now freed from the past—reflect upon and apply the changes they have undergone. Two trajectories in the process were found. One trajectory is going through stages sequentially and the other trajectory is experiencing back and forth between empowerment and transformation stages before moving into the integration stage. The study's findings broaden our knowledge of the strength-based forgiveness process that women survivors of IPV undergo during recovery. Practitioners and policymakers could develop programmes and policies that support forgiveness by holistically facilitating their recovery and empowerment like assistance in dealing with life difficulties and promoting their reconnection with social networks. To improve the transferability and validity of the findings, the forgiveness of survivors of IPV could be explored in a diverse sample (e.g., survivors with low educational background or live in the rural area).  相似文献   
4.
Bundesgesundheitsblatt - Gesundheitsforschung - Gesundheitsschutz - Akteure der öffentlichen Gesundheit (Public Health) tragen wesentlich zu Gesundheitsschutz, -förderung und...  相似文献   
5.
6.
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   
7.
8.
Metabolism describes the series of chemical reactions that are concerned with the provision of energy to biological systems. They may be divided into reactions involved in energy yield (catabolism: demand exceeds supply), and energy storage (anabolism: supply exceeds demand). Regulation of these pathways is critical for homeostasis, and derangements in metabolism are seen in a wide variety of pathological processes. Understanding metabolism is key to the treatment of many diseases, notably diabetes, as well as underpinning clinical nutritional support.  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