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   30456篇
  免费   5948篇
  国内免费   114篇
耳鼻咽喉   187篇
儿科学   716篇
妇产科学   1785篇
基础医学   1729篇
口腔科学   525篇
临床医学   16189篇
内科学   5024篇
皮肤病学   441篇
神经病学   1761篇
特种医学   667篇
外科学   2595篇
综合类   116篇
一般理论   4篇
预防医学   2577篇
眼科学   302篇
药学   687篇
中国医学   25篇
肿瘤学   1188篇
  2024年   87篇
  2023年   909篇
  2022年   308篇
  2021年   741篇
  2020年   864篇
  2019年   602篇
  2018年   1532篇
  2017年   1575篇
  2016年   1702篇
  2015年   1848篇
  2014年   1991篇
  2013年   2347篇
  2012年   1361篇
  2011年   1635篇
  2010年   1523篇
  2009年   1742篇
  2008年   1377篇
  2007年   1253篇
  2006年   1252篇
  2005年   1081篇
  2004年   926篇
  2003年   792篇
  2002年   729篇
  2001年   592篇
  2000年   398篇
  1999年   527篇
  1998年   644篇
  1997年   770篇
  1996年   715篇
  1995年   618篇
  1994年   451篇
  1993年   351篇
  1992年   314篇
  1991年   298篇
  1990年   288篇
  1989年   244篇
  1988年   189篇
  1987年   187篇
  1986年   171篇
  1985年   182篇
  1984年   136篇
  1983年   131篇
  1982年   126篇
  1981年   117篇
  1980年   80篇
  1979年   117篇
  1978年   81篇
  1977年   86篇
  1976年   84篇
  1972年   103篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
3.
4.
5.
The definition of envy is commonly based on psychoanalytical views of organizational culture. The purpose of this paper is to describe envy in a nursing community. The population study consisted of random sample of 120 subjects drawn from among the employees of one central hospital in Finland. The study material consisted of data collected by questionnaires (response rate 65%). The data were processed by various statistical methods. Open-ended questions were analysed by inductive content analysis. The results of this study indicated that the employee's view of his/her official position in the nursing community, his/her relationships with his/her fellow workers and the management as well as relationships with other nursing communities are all related to envy. The employee's view of his/her official position intensified his/her feelings of envy, if he/she had other negative feelings, anxiety, dissatisfaction with him/herself, and negative feelings towards fellow workers. The major object of envy was fellow workers' salaries. Envy towards other nursing communities was generated by alleged differences in the amount of labour, or by the charge nurse's greater interest in other sections. Employees coped with envy by hiding these feelings and being modest. Women coped with envy by being silent, while men denied the value of the object of envy.  相似文献   
6.
Entering the postmodern world in which society is confronting crossroads, paradoxes, and complexity, the health care system is encountering a transformation more comprehensive and revolutionary than has ever been seen before. Analysis of the state of nursing vis a vis these transformations indicates that the current paradigm does not ensure the existence of the profession in the postmodern health care system. That is because of increased difficulties in consolidating the economic and quality issues into the core of nursing, and in understanding the complexity inherent in health related situations.  相似文献   
7.
The efficacy and safety of ketoprofen and paracetamol were compared for the treatment of acute migraine in a randomized, double-blind study of 64 patients. Thirty-four patients received ketoprofen 100 mg intramuscularly, and 30 patients received paracetamol 500 mg intramuscularly. Partial or complete relief of pain and other symptoms was achieved 15 to 20 minutes after administration in the ketoprofen group and within 35 minutes in the paracetamol group. Complete relief of pain was achieved within 30 to 40 minutes after ketoprofen in 28 patients (82.5%) compared to 5 patients (17.5%) in the paracetamol group. Six of the patients treated with ketoprofen needed a second dose for complete relief of pain during the 4-hour follow-up period. Side effects were rare and minimal. Our findings suggest that ketoprofen produced statistically significant benefit in the treatment of acute migraine.  相似文献   
8.
Society often expects mothers and fathers to share equally in the perinatal grief process because the child was a common bond between them. Unfortunately, in perinatal grief, this is not always the case. The mother and the father can experience incongruent grieving and use discordant coping mechanisms. It is important to evaluate these differences to facilitate communication between the distraught parents. Improved communication can in turn facilitate the grieving process.  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