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   28098篇
  免费   1621篇
  国内免费   258篇
耳鼻咽喉   243篇
儿科学   556篇
妇产科学   585篇
基础医学   2865篇
口腔科学   671篇
临床医学   1990篇
内科学   8074篇
皮肤病学   360篇
神经病学   2487篇
特种医学   1068篇
外科学   5199篇
综合类   57篇
一般理论   5篇
预防医学   1106篇
眼科学   527篇
药学   1651篇
中国医学   58篇
肿瘤学   2475篇
  2024年   24篇
  2023年   275篇
  2022年   513篇
  2021年   1032篇
  2020年   591篇
  2019年   842篇
  2018年   1004篇
  2017年   730篇
  2016年   892篇
  2015年   911篇
  2014年   1224篇
  2013年   1505篇
  2012年   2286篇
  2011年   2177篇
  2010年   1254篇
  2009年   1208篇
  2008年   1886篇
  2007年   1827篇
  2006年   1716篇
  2005年   1702篇
  2004年   1608篇
  2003年   1374篇
  2002年   1231篇
  2001年   131篇
  2000年   137篇
  1999年   180篇
  1998年   211篇
  1997年   170篇
  1996年   163篇
  1995年   153篇
  1994年   130篇
  1993年   115篇
  1992年   94篇
  1991年   58篇
  1990年   68篇
  1989年   47篇
  1988年   44篇
  1987年   41篇
  1986年   45篇
  1985年   39篇
  1984年   34篇
  1983年   34篇
  1982年   49篇
  1981年   30篇
  1980年   29篇
  1979年   19篇
  1978年   12篇
  1976年   11篇
  1975年   9篇
  1974年   14篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Graefe's Archive for Clinical and Experimental Ophthalmology - To estimate the impact of delayed care during the coronavirus disease 2019 (COVID-19) pandemic on the outcomes of patients with...  相似文献   
3.
4.
5.
6.
7.
8.
9.
Background:Workplace hazards are a significant source of health impairment for workers and of financial losses for firms. EU directives on workers’ health and safety standards significantly contributed to reduce reported occupational injuries, yet the incidence and prevalence of work-related mental illness is still very high.Objectives:We investigated the association between work-related hazards and individuals’ perceived mental health. We reviewed the existing evidence on the channels through which task-related factors, adverse agents and psychosocial factors are expected to affect workers’ health, with specific regard to mental health.Methods:We used data from the fifth wave of the European Working Conditions Survey, covering over 40,000 face-to-face interviews with workers in 34 countries, which includes information on socio-demographic characteristics, firms and jobs attributes, employment status, as well as working conditions and health status. We carried out an empirical analysis with multivariate regression models in order to estimate the relationship between workers’ mental health problems and workplace risk factors.Results:21,020 interviews were used in the multivariate analysis. We found strong correlations between hazards and various indicators of mental health. Among hazardous agents, low temperatures (β=0.0287) and contact with infectious materials (β=0.0394) were positively associated with mental health outcomes. Among task/sequence-related factors, tiring or painful positions (β=0.0713), repetitive hand/arm movements (β=0.0255), working with VDUs (β=0.0301), repetitive tasks <10 min (β=0.0859) and working in evenings (β=0.00754) were positively associated with mental health. Various psychosocial risk factors related to both the content of the job (for example, frequent disruptive interruptions: β=0.219, working in free time: β=0.0759, poor work-life balance: β=0.228) as well as the job context (for example, bad employment prospects: β=0.177, low decisional autonomy: β=0.245, bad social relations: β=0.186, workplace violence: β=0.411) were positively associated with mental health. The main results of the decomposition show that an important contribution to workers’ overall mental distress at work is associated with psychosocial risk factors (up to 60% for depression/anxiety symptoms and sleep disorders), while the contribution of somatic factors is on average lower (up to 20% for overall fatigue).Conclusions:We argue that action is needed to improve workers’ mental well-being, and reduce the economic costs for both the national health system and employers. Regulations and traditional economic measures are unlikely to prove successful in providing adequate standards of primary and secondary preventive measures in the work place without an appropriate and reliable Risk Assessment Procedure.Key words: Work hazards, risk assessment, job content, mental health  相似文献   
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