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   5096089篇
  免费   410001篇
  国内免费   30011篇
耳鼻咽喉   70619篇
儿科学   159658篇
妇产科学   132310篇
基础医学   761046篇
口腔科学   139934篇
临床医学   479656篇
内科学   921911篇
皮肤病学   118640篇
神经病学   422531篇
特种医学   199871篇
外国民族医学   1105篇
外科学   755648篇
综合类   171264篇
现状与发展   79篇
一般理论   2827篇
预防医学   419994篇
眼科学   121309篇
药学   371269篇
  211篇
中国医学   24866篇
肿瘤学   261353篇
  2021年   67047篇
  2020年   43991篇
  2019年   65875篇
  2018年   82907篇
  2017年   64106篇
  2016年   70066篇
  2015年   85703篇
  2014年   122183篇
  2013年   185871篇
  2012年   154610篇
  2011年   164317篇
  2010年   140068篇
  2009年   137773篇
  2008年   143161篇
  2007年   152778篇
  2006年   160349篇
  2005年   154866篇
  2004年   151383篇
  2003年   140853篇
  2002年   128528篇
  2001年   200262篇
  2000年   197785篇
  1999年   178245篇
  1998年   78357篇
  1997年   73002篇
  1996年   70834篇
  1995年   66208篇
  1994年   59748篇
  1993年   55025篇
  1992年   129874篇
  1991年   124537篇
  1990年   119742篇
  1989年   116129篇
  1988年   106955篇
  1987年   104880篇
  1986年   98930篇
  1985年   96182篇
  1984年   78007篇
  1983年   68603篇
  1982年   51715篇
  1981年   47798篇
  1980年   44792篇
  1979年   67767篇
  1978年   53062篇
  1977年   46630篇
  1976年   43249篇
  1975年   43761篇
  1974年   48773篇
  1973年   46753篇
  1972年   43852篇
排序方式: 共有10000条查询结果,搜索用时 605 毫秒
71.
72.
“三全育人”是高校思政教育工作的关键一环,也是中医药高校推动思政教育的重要内容。以“三全育人”为视角对北京中医药大学思想政治教育举措“杏林成长导师”计划路径、内容深入分析,运用统计分析和文献研究方法,剖析该计划对中医学专业大学生的学业、思想和实践等多个层面的现实成效,从而为“三全育人”理念在中医药院校制度建构中的应用提供新的视角与方法。  相似文献   
73.
74.
75.
76.
Purpose

This paper describes the design of a theory-informed pragmatic intervention for adolescent perinatal depression in primary care in Nigeria.

Methods

We conducted Focus Group Discussions (FGDs) among 17 adolescent mothers and 25 maternal health care providers with experience in the receipt and provision of care for perinatal depression. The Consolidated Framework for Implementation Research (CFIR) was used to systematically examine the barriers and facilitators affecting adolescent mothers' use of an existing intervention package for depression. The Theoretical Domain Framework (TDF) and the Capability, Opportunity, Motivation, Behaviour (COM-B) model were used to analyze the results of the data across the five CFIR domains.

Results

FGD analysis revealed that care providers lacked knowledge on approaches to engage young mothers in treatment. Young mothers had poor treatment engagement, low social support, and little interest in parenting. A main characteristic of the newly designed intervention is the inclusion of age-appropriate psychoeducation supported with weekly mobile phone calls, to address treatment engagement and parenting behaviours of young mothers. Also in the outer setting, low social support from relatives was addressed with education, “as need arises” phone calls, and the involvement of "neighborhood mothers”. In the inner settings, care providers’ behaviour is addressed with training to increase their capacity to engage young mothers in treatment.

Conclusion

A theory-based approach helped develop an age-appropriate intervention package targeting depression and parenting skills deficit among perinatal adolescents in primary maternal care and in which a pragmatic use of mobile phone was key.

  相似文献   
77.
Major depressive disorder and other neuropsychiatric disorders are often managed with long-term use of antidepressant medication. Fluoxetine, an SSRI antidepressant, is widely used as a first-line treatment for neuropsychiatric disorders. However, fluoxetine has also been shown to increase the risk of metabolic diseases such as non-alcoholic fatty liver disease. Fluoxetine has been shown to increase hepatic lipid accumulation in vivo and in vitro. In addition, fluoxetine has been shown to alter the production of prostaglandins which have also been implicated in the development of non-alcoholic fatty liver disease. The goal of this study was to assess the effect of fluoxetine exposure on the prostaglandin biosynthetic pathway and lipid accumulation in a hepatic cell line (H4-II-E-C3 cells). Fluoxetine treatment increased mRNA expression of prostaglandin biosynthetic enzymes (Ptgs1, Ptgs2, and Ptgds), PPAR gamma (Pparg), and PPAR gamma downstream targets involved in fatty acid uptake (Cd36, Fatp2, and Fatp5) as well as production of 15-deoxy-Δ12,14PGJ2 a PPAR gamma ligand. The effects of fluoxetine to induce lipid accumulation were attenuated with a PTGS1 specific inhibitor (SC-560), whereas inhibition of PTGS2 had no effect. Moreover, SC-560 attenuated 15-deoxy-Δ12,14PGJ2 production and expression of PPAR gamma downstream target genes. Taken together these results suggest that fluoxetine-induced lipid abnormalities appear to be mediated via PTGS1 and its downstream product 15d-PGJ2 and suggest a novel therapeutic target to prevent some of the adverse effects of fluoxetine treatment.  相似文献   
78.
79.
Cognitive Therapy and Research - Despite interest in psychological inflexibility as a marker of suicide risk, no measure of psychological inflexibility specific to SI exists. The present study...  相似文献   
80.
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