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   4106623篇
  免费   341317篇
  国内免费   14607篇
耳鼻咽喉   56521篇
儿科学   128623篇
妇产科学   105600篇
基础医学   634860篇
口腔科学   113460篇
临床医学   374527篇
内科学   738137篇
皮肤病学   102859篇
神经病学   344552篇
特种医学   164564篇
外国民族医学   495篇
外科学   629481篇
综合类   121489篇
现状与发展   24篇
一般理论   2445篇
预防医学   342182篇
眼科学   95465篇
药学   292316篇
  27篇
中国医学   11391篇
肿瘤学   203529篇
  2021年   55991篇
  2020年   35596篇
  2019年   58631篇
  2018年   73367篇
  2017年   55978篇
  2016年   62041篇
  2015年   75555篇
  2014年   110100篇
  2013年   175407篇
  2012年   110979篇
  2011年   113965篇
  2010年   122399篇
  2009年   125053篇
  2008年   100248篇
  2007年   105992篇
  2006年   115342篇
  2005年   110177篇
  2004年   111622篇
  2003年   102162篇
  2002年   91165篇
  2001年   153236篇
  2000年   148598篇
  1999年   137596篇
  1998年   70573篇
  1997年   66900篇
  1996年   65072篇
  1995年   60776篇
  1994年   54611篇
  1993年   50920篇
  1992年   100258篇
  1991年   96188篇
  1990年   92225篇
  1989年   90016篇
  1988年   82801篇
  1987年   80885篇
  1986年   76581篇
  1985年   75280篇
  1984年   63579篇
  1983年   56556篇
  1982年   46824篇
  1981年   43460篇
  1980年   41019篇
  1979年   54188篇
  1978年   44060篇
  1977年   39778篇
  1976年   36299篇
  1975年   36115篇
  1974年   38829篇
  1973年   37365篇
  1972年   34920篇
排序方式: 共有10000条查询结果,搜索用时 17 毫秒
51.
52.
53.
54.
55.
56.
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   
57.
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   
58.
59.
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   
60.
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