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   2326866篇
  免费   172788篇
  国内免费   14130篇
耳鼻咽喉   32972篇
儿科学   74449篇
妇产科学   60310篇
基础医学   322059篇
口腔科学   62129篇
临床医学   210804篇
内科学   442559篇
皮肤病学   50524篇
神经病学   173916篇
特种医学   92586篇
外国民族医学   927篇
外科学   347821篇
综合类   80388篇
现状与发展   51篇
一般理论   626篇
预防医学   172357篇
眼科学   52541篇
药学   183734篇
  196篇
中国医学   17267篇
肿瘤学   135568篇
  2021年   21970篇
  2019年   20002篇
  2018年   27365篇
  2017年   22292篇
  2016年   23860篇
  2015年   29086篇
  2014年   38915篇
  2013年   54265篇
  2012年   75007篇
  2011年   79643篇
  2010年   49945篇
  2009年   45880篇
  2008年   71585篇
  2007年   75440篇
  2006年   75669篇
  2005年   72020篇
  2004年   67687篇
  2003年   65309篇
  2002年   62809篇
  2001年   114833篇
  2000年   118013篇
  1999年   99133篇
  1998年   26407篇
  1997年   23706篇
  1996年   23842篇
  1995年   22431篇
  1994年   20751篇
  1993年   19226篇
  1992年   75650篇
  1991年   73179篇
  1990年   71678篇
  1989年   68561篇
  1988年   62618篇
  1987年   61250篇
  1986年   57271篇
  1985年   54514篇
  1984年   40143篇
  1983年   33771篇
  1982年   19047篇
  1979年   35800篇
  1978年   24454篇
  1977年   21252篇
  1976年   19190篇
  1975年   21263篇
  1974年   24766篇
  1973年   23849篇
  1972年   22353篇
  1971年   20593篇
  1970年   19268篇
  1969年   18051篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
71.
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   

72.
73.
74.
75.
76.

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   
77.
78.
Pharmaceutical Chemistry Journal - Three extracts were produced from the above-ground part of the meadowsweet Filipendula ulmaria (L.) Maxim. using water, 40% ethanol, and 70% ethanol. Comparative...  相似文献   
79.
80.
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