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   3441014篇
  免费   305711篇
  国内免费   13859篇
耳鼻咽喉   47325篇
儿科学   109001篇
妇产科学   87728篇
基础医学   549592篇
口腔科学   93039篇
临床医学   312334篇
内科学   612035篇
皮肤病学   89325篇
神经病学   297484篇
特种医学   138095篇
外国民族医学   299篇
外科学   534105篇
综合类   105984篇
现状与发展   24篇
一般理论   2264篇
预防医学   293476篇
眼科学   78679篇
药学   237604篇
  24篇
中国医学   9550篇
肿瘤学   162617篇
  2021年   55105篇
  2020年   35096篇
  2019年   58104篇
  2018年   71392篇
  2017年   54334篇
  2016年   60026篇
  2015年   74148篇
  2014年   108464篇
  2013年   173528篇
  2012年   92173篇
  2011年   91983篇
  2010年   116561篇
  2009年   121033篇
  2008年   79105篇
  2007年   82248篇
  2006年   92853篇
  2005年   88408篇
  2004年   90395篇
  2003年   81310篇
  2002年   70438篇
  2001年   111030篇
  2000年   104596篇
  1999年   102212篇
  1998年   66158篇
  1997年   63781篇
  1996年   61983篇
  1995年   57732篇
  1994年   51748篇
  1993年   48350篇
  1992年   73548篇
  1991年   70274篇
  1990年   66581篇
  1989年   65138篇
  1988年   60413篇
  1987年   59073篇
  1986年   55897篇
  1985年   55994篇
  1984年   50437篇
  1983年   45773篇
  1982年   42543篇
  1981年   39968篇
  1980年   37672篇
  1979年   41789篇
  1978年   36569篇
  1977年   33119篇
  1976年   30465篇
  1975年   29034篇
  1974年   30269篇
  1973年   29051篇
  1972年   27034篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
51.
52.
53.
54.
55.
56.
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   
57.
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   
58.
59.
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   
60.
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