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   3448864篇
  免费   306129篇
  国内免费   13865篇
耳鼻咽喉   47526篇
儿科学   109230篇
妇产科学   87845篇
基础医学   550511篇
口腔科学   93160篇
临床医学   313333篇
内科学   613424篇
皮肤病学   89571篇
神经病学   298108篇
特种医学   138300篇
外国民族医学   299篇
外科学   535018篇
综合类   106132篇
现状与发展   24篇
一般理论   2278篇
预防医学   294488篇
眼科学   78987篇
药学   238193篇
  24篇
中国医学   9565篇
肿瘤学   162842篇
  2021年   55133篇
  2020年   35113篇
  2019年   58144篇
  2018年   71443篇
  2017年   54386篇
  2016年   60061篇
  2015年   74191篇
  2014年   108511篇
  2013年   173633篇
  2012年   92967篇
  2011年   92908篇
  2010年   116805篇
  2009年   121220篇
  2008年   79883篇
  2007年   83152篇
  2006年   93749篇
  2005年   89235篇
  2004年   91250篇
  2003年   82072篇
  2002年   71116篇
  2001年   111027篇
  2000年   104639篇
  1999年   102225篇
  1998年   66227篇
  1997年   63817篇
  1996年   62015篇
  1995年   57775篇
  1994年   51784篇
  1993年   48382篇
  1992年   73497篇
  1991年   70208篇
  1990年   66541篇
  1989年   65118篇
  1988年   60391篇
  1987年   59054篇
  1986年   55872篇
  1985年   55984篇
  1984年   50430篇
  1983年   45762篇
  1982年   42552篇
  1981年   39983篇
  1980年   37676篇
  1979年   41772篇
  1978年   36572篇
  1977年   33123篇
  1976年   30453篇
  1975年   29034篇
  1974年   30269篇
  1973年   29035篇
  1972年   27044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