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   3476186篇
  免费   308879篇
  国内免费   13888篇
耳鼻咽喉   48016篇
儿科学   110753篇
妇产科学   88879篇
基础医学   553603篇
口腔科学   94240篇
临床医学   315974篇
内科学   614573篇
皮肤病学   89942篇
神经病学   301256篇
特种医学   139661篇
外国民族医学   300篇
外科学   540572篇
综合类   106792篇
现状与发展   24篇
一般理论   2383篇
预防医学   294505篇
眼科学   80593篇
药学   242065篇
  20篇
中国医学   9631篇
肿瘤学   165171篇
  2021年   54021篇
  2020年   35475篇
  2019年   58680篇
  2018年   72282篇
  2017年   54678篇
  2016年   60487篇
  2015年   74519篇
  2014年   109156篇
  2013年   174639篇
  2012年   98119篇
  2011年   98874篇
  2010年   118574篇
  2009年   122709篇
  2008年   85337篇
  2007年   89095篇
  2006年   99166篇
  2005年   94777篇
  2004年   96481篇
  2003年   87003篇
  2002年   75966篇
  2001年   111486篇
  2000年   104963篇
  1999年   102618篇
  1998年   66570篇
  1997年   63731篇
  1996年   56274篇
  1995年   57357篇
  1994年   51492篇
  1993年   48065篇
  1992年   73281篇
  1991年   70294篇
  1990年   66520篇
  1989年   65077篇
  1988年   60294篇
  1987年   58989篇
  1986年   55811篇
  1985年   55972篇
  1984年   50253篇
  1983年   45480篇
  1982年   42236篇
  1981年   39638篇
  1980年   37303篇
  1979年   41537篇
  1978年   36326篇
  1977年   32754篇
  1976年   30150篇
  1975年   28773篇
  1974年   30125篇
  1973年   28936篇
  1972年   27004篇
排序方式: 共有10000条查询结果,搜索用时 15 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