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   5193531篇
  免费   403173篇
  国内免费   15893篇
耳鼻咽喉   73157篇
儿科学   166558篇
妇产科学   136715篇
基础医学   775015篇
口腔科学   144187篇
临床医学   481817篇
内科学   947907篇
皮肤病学   122498篇
神经病学   429910篇
特种医学   203549篇
外国民族医学   1005篇
外科学   780441篇
综合类   143544篇
现状与发展   24篇
一般理论   2985篇
预防医学   436674篇
眼科学   122953篇
药学   370629篇
  27篇
中国医学   13495篇
肿瘤学   259507篇
  2021年   57658篇
  2019年   59938篇
  2018年   77690篇
  2017年   59617篇
  2016年   65968篇
  2015年   78180篇
  2014年   112803篇
  2013年   178987篇
  2012年   150011篇
  2011年   160546篇
  2010年   134798篇
  2009年   133162篇
  2008年   144776篇
  2007年   156429篇
  2006年   162833篇
  2005年   157086篇
  2004年   157545篇
  2003年   147281篇
  2002年   135774篇
  2001年   205424篇
  2000年   202548篇
  1999年   181197篇
  1998年   77126篇
  1997年   71314篇
  1996年   69492篇
  1995年   64965篇
  1994年   58770篇
  1993年   54550篇
  1992年   134129篇
  1991年   130266篇
  1990年   125869篇
  1989年   122420篇
  1988年   112797篇
  1987年   110852篇
  1986年   104575篇
  1985年   101869篇
  1984年   82034篇
  1983年   72013篇
  1982年   52916篇
  1981年   48906篇
  1980年   45897篇
  1979年   72248篇
  1978年   55999篇
  1977年   48834篇
  1976年   45802篇
  1975年   47502篇
  1974年   53078篇
  1973年   50844篇
  1972年   47590篇
  1971年   44151篇
排序方式: 共有10000条查询结果,搜索用时 140 毫秒
61.
62.
63.
64.
65.
66.
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   
67.
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   
68.
69.
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   
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