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   20064篇
  免费   5233篇
  国内免费   73篇
耳鼻咽喉   68篇
儿科学   433篇
妇产科学   1670篇
基础医学   289篇
口腔科学   157篇
临床医学   15321篇
内科学   2405篇
皮肤病学   87篇
神经病学   726篇
特种医学   210篇
外科学   1298篇
综合类   46篇
预防医学   1782篇
眼科学   25篇
药学   175篇
中国医学   31篇
肿瘤学   647篇
  2024年   75篇
  2023年   777篇
  2022年   90篇
  2021年   248篇
  2020年   613篇
  2019年   222篇
  2018年   1109篇
  2017年   1347篇
  2016年   1411篇
  2015年   1489篇
  2014年   1542篇
  2013年   1782篇
  2012年   496篇
  2011年   758篇
  2010年   1077篇
  2009年   1366篇
  2008年   713篇
  2007年   611篇
  2006年   625篇
  2005年   529篇
  2004年   479篇
  2003年   420篇
  2002年   365篇
  2001年   526篇
  2000年   324篇
  1999年   457篇
  1998年   596篇
  1997年   695篇
  1996年   643篇
  1995年   567篇
  1994年   419篇
  1993年   340篇
  1992年   277篇
  1991年   269篇
  1990年   274篇
  1989年   229篇
  1988年   171篇
  1987年   157篇
  1986年   159篇
  1985年   156篇
  1984年   119篇
  1983年   108篇
  1982年   85篇
  1981年   90篇
  1980年   50篇
  1979年   77篇
  1978年   59篇
  1977年   66篇
  1976年   69篇
  1972年   86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