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   5022650篇
  免费   399898篇
  国内免费   19944篇
耳鼻咽喉   70383篇
儿科学   159169篇
妇产科学   131102篇
基础医学   752986篇
口腔科学   139576篇
临床医学   464168篇
内科学   914593篇
皮肤病学   119354篇
神经病学   418379篇
特种医学   198043篇
外国民族医学   999篇
外科学   751788篇
综合类   151588篇
现状与发展   39篇
一般理论   2828篇
预防医学   417309篇
眼科学   117749篇
药学   361470篇
  85篇
中国医学   17436篇
肿瘤学   253448篇
  2021年   60975篇
  2019年   61710篇
  2018年   78822篇
  2017年   60499篇
  2016年   67214篇
  2015年   81334篇
  2014年   117012篇
  2013年   183131篇
  2012年   149856篇
  2011年   157579篇
  2010年   137476篇
  2009年   136597篇
  2008年   140236篇
  2007年   149406篇
  2006年   156409篇
  2005年   149806篇
  2004年   149273篇
  2003年   138554篇
  2002年   126718篇
  2001年   198576篇
  2000年   195416篇
  1999年   175181篇
  1998年   76285篇
  1997年   70937篇
  1996年   69012篇
  1995年   64526篇
  1994年   58379篇
  1993年   54124篇
  1992年   128791篇
  1991年   123573篇
  1990年   118979篇
  1989年   115505篇
  1988年   106391篇
  1987年   104435篇
  1986年   98496篇
  1985年   95906篇
  1984年   77834篇
  1983年   68510篇
  1982年   51646篇
  1981年   47724篇
  1980年   44741篇
  1979年   67718篇
  1978年   53078篇
  1977年   46625篇
  1976年   43265篇
  1975年   44086篇
  1974年   49018篇
  1973年   46951篇
  1972年   43955篇
  1971年   40636篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
63.
64.
65.
66.
67.
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   
68.
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   
69.
70.
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   
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