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   3459222篇
  免费   307523篇
  国内免费   15847篇
耳鼻咽喉   47459篇
儿科学   109080篇
妇产科学   87833篇
基础医学   551650篇
口腔科学   93317篇
临床医学   315188篇
内科学   614190篇
皮肤病学   89419篇
神经病学   298195篇
特种医学   138670篇
外国民族医学   317篇
外科学   535967篇
综合类   109938篇
现状与发展   28篇
一般理论   2265篇
预防医学   294723篇
眼科学   79261篇
药学   239819篇
  48篇
中国医学   10874篇
肿瘤学   164351篇
  2021年   56120篇
  2020年   35924篇
  2019年   58749篇
  2018年   71986篇
  2017年   54869篇
  2016年   60582篇
  2015年   75054篇
  2014年   109568篇
  2013年   174382篇
  2012年   93547篇
  2011年   93638篇
  2010年   117579篇
  2009年   121798篇
  2008年   80128篇
  2007年   83302篇
  2006年   93845篇
  2005年   89433篇
  2004年   90936篇
  2003年   81973篇
  2002年   70895篇
  2001年   111390篇
  2000年   105070篇
  1999年   102732篇
  1998年   66488篇
  1997年   64117篇
  1996年   62235篇
  1995年   57962篇
  1994年   51985篇
  1993年   48492篇
  1992年   73636篇
  1991年   70342篇
  1990年   66644篇
  1989年   65204篇
  1988年   60460篇
  1987年   59098篇
  1986年   55901篇
  1985年   56016篇
  1984年   50426篇
  1983年   45758篇
  1982年   42549篇
  1981年   39971篇
  1980年   37669篇
  1979年   41762篇
  1978年   36553篇
  1977年   33109篇
  1976年   30448篇
  1975年   29024篇
  1974年   30259篇
  1973年   29025篇
  1972年   27026篇
排序方式: 共有10000条查询结果,搜索用时 312 毫秒
61.
62.
63.
64.
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   
65.
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   
66.
67.
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   
68.
69.
70.
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