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   3530956篇
  免费   305309篇
  国内免费   14171篇
耳鼻咽喉   48089篇
儿科学   112784篇
妇产科学   92615篇
基础医学   562329篇
口腔科学   94532篇
临床医学   317969篇
内科学   631586篇
皮肤病学   93531篇
神经病学   304538篇
特种医学   138024篇
外国民族医学   491篇
外科学   542300篇
综合类   107688篇
现状与发展   24篇
一般理论   2342篇
预防医学   298230篇
眼科学   80784篇
药学   242444篇
  22篇
中国医学   10531篇
肿瘤学   169583篇
  2021年   55467篇
  2020年   35317篇
  2019年   58376篇
  2018年   71896篇
  2017年   54930篇
  2016年   60720篇
  2015年   74612篇
  2014年   108880篇
  2013年   174103篇
  2012年   99657篇
  2011年   100258篇
  2010年   118203篇
  2009年   122520篇
  2008年   86864篇
  2007年   90490篇
  2006年   100852篇
  2005年   96083篇
  2004年   97453篇
  2003年   87859篇
  2002年   77266篇
  2001年   118324篇
  2000年   111778篇
  1999年   107661篇
  1998年   66684篇
  1997年   64266篇
  1996年   62109篇
  1995年   57548篇
  1994年   51483篇
  1993年   48057篇
  1992年   74311篇
  1991年   69968篇
  1990年   65709篇
  1989年   64480篇
  1988年   59444篇
  1987年   58130篇
  1986年   54686篇
  1985年   54474篇
  1984年   49529篇
  1983年   45092篇
  1982年   42188篇
  1981年   39555篇
  1980年   37246篇
  1979年   40280篇
  1978年   35588篇
  1977年   32301篇
  1976年   29637篇
  1975年   27968篇
  1974年   29031篇
  1973年   28055篇
  1972年   26243篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
231.
Background: Poor anger regulation is considered a risk factor of aggression in individuals with mild or borderline intellectual disabilities. Psychomotor therapy (PMT) targets anger regulation through body- and movement-oriented interventions. This study aims to inform practitioners on efficacy and research-base of PMT in this population.

Method: This systematic review evaluated nine studies which met inclusion criteria in terms of participants, intervention procedures, outcomes and certainty of evidence.

Results: Seven studies revealed a substantial reduction of aggressive behaviour or anger. Certainty of evidence was rated inconclusive in most cases due to absence of experimental control.

Conclusions: We can conclude that body-oriented PMT, involving progressive relaxation and meditation procedure “Soles of the Feet”, is a promising approach. However, the paucity of studies and methodological limitations preclude classifying it as an evidence-based practice. This suggests stronger methodological research and research aimed at PMT’s mechanisms of action (e.g., improved interoceptive awareness) is warranted.  相似文献   

232.
233.
234.
235.
236.
237.
238.

Background

Resistin is an immunometabolic mediator that is elevated in several inflammatory disorders. A ligand for Toll-like receptor 4, resistin modulates the recruitment and activation of myeloid cells, notably neutrophils. Neutrophils are major drivers of cystic fibrosis (CF) lung disease, in part due to the release of human neutrophil elastase- and myeloperoxidase-rich primary granules, leading to tissue damage. Here we assessed the relationship of resistin to CF lung disease.

Methods

Resistin levels were measured in plasma and sputum from three retrospective CF cohorts spanning a wide range of disease. We also assessed the ability of neutrophils to secrete resistin upon activation in vitro. Finally, we constructed a multivariate model assessing the relationship between resistin levels and lung function.

Results

Plasma resistin levels were only marginally higher in CF than in healthy control subjects. By contrast, sputum resistin levels were very high in CF, reaching 50–100 fold higher levels than in plasma. Among CF patients, higher plasma resistin levels were associated with allergic bronchopulmonary aspergillosis, and higher sputum resistin levels were associated with CF-related diabetes. Mechanistically, in vitro release of neutrophil primary granules was concomitant with resistin secretion. Overall, sputum resistin levels were negatively correlated with CF lung function, independently of other variables (age, sex, and genotype).

Conclusions

Our data establish relationships between resistin levels in the plasma and sputum of CF patients that correlate with disease status, and identify resistin as a novel mechanistic link between neutrophilic inflammation and lung disease in CF.  相似文献   
239.
240.
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