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   215篇
  免费   23篇
  国内免费   3篇
儿科学   1篇
基础医学   43篇
口腔科学   2篇
临床医学   20篇
内科学   8篇
神经病学   101篇
特种医学   2篇
外科学   12篇
综合类   27篇
预防医学   9篇
药学   15篇
  1篇
  2023年   5篇
  2022年   6篇
  2021年   10篇
  2020年   8篇
  2019年   10篇
  2018年   6篇
  2017年   12篇
  2016年   2篇
  2015年   7篇
  2014年   19篇
  2013年   33篇
  2012年   17篇
  2011年   23篇
  2010年   18篇
  2009年   14篇
  2008年   14篇
  2007年   6篇
  2006年   7篇
  2005年   6篇
  2004年   4篇
  2003年   1篇
  2002年   1篇
  2001年   1篇
  1999年   1篇
  1998年   3篇
  1997年   1篇
  1995年   1篇
  1992年   1篇
  1989年   1篇
  1987年   1篇
  1976年   1篇
  1970年   1篇
排序方式: 共有241条查询结果,搜索用时 15 毫秒
1.
Study objectivesTo analyze the association between sleep-related symptoms and sleep length in parents and their children in relation to other risk factors in both generations.MethodThe participants were parents (n = 5,855, age 54.3 ± 6.5 years, 45.2% men) who participated in the community-based Respiratory Health in Northern Europe (RHINE) study and one random member of their adult offspring (n = 5,855, age 30.2 ± 7.7 years, 41.5% men) who participated in the Respiratory Health in Northern Europe, Spain and Australia (RHINESSA) study. Both generations responded to identical questionnaires on sleep symptoms, including difficulty initiating sleep (DIS), difficulty maintaining sleep (DMS), early morning awakening (EMA), snoring, nocturnal sweating, nocturnal gastroesophageal reflux (nGER), sleep time and excessive daytime sleepiness (EDS). Insomnia was defined as either, or both, DIS and DMS in combination with EDS.ResultsAll sleep variables except nocturnal sweating were more common in offspring whose parents had reported the same symptom. After adjusting for age, gender, BMI, smoking, physical activity, education, center and parents' total number of children, there were independent associations between sleep symptoms in parents and offspring for DIS (adj. OR, 95% CI: 1.52, 1.20–1.93), DMS (1.34, 1.15–1.56), snoring (1.45, 1.15,1.83), nGER (1.65, 1.15–2.37), insomnia (1.39, 1.13–1.73), short sleep time (<6 h/night) (2.51, 1.72–3.68) and EDS (1.48, 1.26,1.72). There were no independent relationships between symptoms in parents and offspring for EMA, nocturnal sweating or long sleep time (>9 h/night).ConclusionThe familiar aggregation of many sleep disturbances was not explained by investigated lifestyle and environmental factors. This supports a heritable factor in sleep problems.  相似文献   
2.
清开灵注射液治疗脑血管性痴呆32例   总被引:9,自引:0,他引:9  
目的观察清开灵注射液治疗脑血管性痴呆的疗效.方法将中医学辨证属于实证的64例脑血管性痴呆患者随机分为治疗组(清开灵注射液组)和对照组(脑复康组),治疗5周后,将两组治疗前后在智力障碍程度、肢体功能、血液流变学指标、中医证型疗效方面的变化进行比较.结果经治疗后治疗组和对照组相比较,智力障碍程度变化(有效率、MMSE、ADL积分)、肌力、步行能力改变有显著性差异,p<0.05.而治疗前后组内及组间血流变指标虽有一定下降,但无统计学意义(p>0.05).结论清开灵注射液对脑血管性痴呆患者,在改善智力障碍、肌力、步行能力方面有较好的疗效.  相似文献   
3.
This research aimed to investigate the time course of the cortical activity level preceding spontaneous awakening as a function of age and state. Two groups of infants (1-4 and 9-14 weeks of age) were continuously monitored by polygraphic recording and behavioural observation during the night. The electroencephalographic (EEG) activity recorded by the C3-O1 lead was analysed through an automatic analysis method which provides, for each 30-s epoch, a single measure, time domain based, of the EEG synchronization. The EEG parameter values were computed in the 6 min preceding each awakening out of non-rapid eye movement (NREM) sleep and out of rapid eye movement (REM) sleep. The EEG background activity level did not change in the minutes preceding awakening out of REM sleep. Awakening out of NREM sleep was preceded by a change of EEG activity level in the direction of higher activation with different time course according to the age. Both REM and NREM sleep results suggest that a high level of EEG activity is a prerequisite for the occurrence of a spontaneous awakening.  相似文献   
4.
铁凝的小说以突显士性意识而引人瞩目,但她们的身心又因承栽着太多的社会内客而扭曲、变形。五四启蒙运动呼唤人的觉醒,而士性在觉醒的过程中备经坎坷与磨难,她们要付出身体乃至生命的双重代价。探究原因。更有助于她们真正的解放。  相似文献   
5.
6.
7.
8.
李晨洋      叶继伦  张旭  周晶晶  檀雪  易红良    关建   《中国医学物理学杂志》2021,(4):472-479
依据人体睡眠期呼吸紊乱事件、心血管事件、醒觉反应事件及对睡眠期分阶的研究,进行多事件融合算法的分析。经过对睡眠分阶以及一系列睡眠呼吸事件的评测分析,表明该算法研究能够有效帮助睡眠医生对睡眠障碍患者的睡眠质量进行充分、有效的评估,且相关评估结果也能为医生后续的诊断治疗提供有效帮助。  相似文献   
9.
10.
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