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   3490624篇
  免费   319642篇
  国内免费   14088篇
耳鼻咽喉   48411篇
儿科学   110175篇
妇产科学   89072篇
基础医学   552829篇
口腔科学   95896篇
临床医学   327561篇
内科学   620868篇
皮肤病学   91517篇
神经病学   303189篇
特种医学   139785篇
外国民族医学   299篇
外科学   543209篇
综合类   106410篇
现状与发展   59篇
一般理论   2301篇
预防医学   297941篇
眼科学   80635篇
药学   239222篇
  23篇
中国医学   9583篇
肿瘤学   165369篇
  2021年   56095篇
  2020年   37240篇
  2019年   58834篇
  2018年   74566篇
  2017年   57487篇
  2016年   63252篇
  2015年   77279篇
  2014年   112493篇
  2013年   177944篇
  2012年   95210篇
  2011年   95297篇
  2010年   119749篇
  2009年   124925篇
  2008年   81942篇
  2007年   84704篇
  2006年   95536篇
  2005年   90468篇
  2004年   92025篇
  2003年   82817篇
  2002年   71761篇
  2001年   111973篇
  2000年   105286篇
  1999年   103011篇
  1998年   67092篇
  1997年   64483篇
  1996年   62634篇
  1995年   58244篇
  1994年   52100篇
  1993年   48691篇
  1992年   73915篇
  1991年   70596篇
  1990年   66911篇
  1989年   65429篇
  1988年   60688篇
  1987年   59279篇
  1986年   56105篇
  1985年   56221篇
  1984年   50577篇
  1983年   45895篇
  1982年   42635篇
  1981年   40053篇
  1980年   37728篇
  1979年   41882篇
  1978年   36642篇
  1977年   33232篇
  1976年   30563篇
  1975年   29113篇
  1974年   30368篇
  1973年   29132篇
  1972年   27129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.
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   
66.
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   
67.
68.
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   
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