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   41228篇
  免费   2302篇
  国内免费   294篇
耳鼻咽喉   337篇
儿科学   1014篇
妇产科学   811篇
基础医学   4613篇
口腔科学   904篇
临床医学   3019篇
内科学   11312篇
皮肤病学   562篇
神经病学   3797篇
特种医学   1745篇
外科学   6960篇
综合类   88篇
一般理论   6篇
预防医学   1706篇
眼科学   634篇
药学   2503篇
中国医学   75篇
肿瘤学   3738篇
  2023年   358篇
  2022年   761篇
  2021年   1354篇
  2020年   770篇
  2019年   1071篇
  2018年   1276篇
  2017年   963篇
  2016年   1143篇
  2015年   1164篇
  2014年   1601篇
  2013年   2004篇
  2012年   2972篇
  2011年   2943篇
  2010年   1684篇
  2009年   1591篇
  2008年   2507篇
  2007年   2494篇
  2006年   2297篇
  2005年   2261篇
  2004年   2113篇
  2003年   1852篇
  2002年   1717篇
  2001年   533篇
  2000年   545篇
  1999年   603篇
  1998年   349篇
  1997年   277篇
  1996年   263篇
  1995年   241篇
  1994年   216篇
  1993年   198篇
  1992年   369篇
  1991年   327篇
  1990年   337篇
  1989年   297篇
  1988年   233篇
  1987年   200篇
  1986年   230篇
  1985年   246篇
  1984年   155篇
  1983年   130篇
  1982年   116篇
  1981年   76篇
  1980年   68篇
  1979年   124篇
  1977年   63篇
  1976年   66篇
  1975年   61篇
  1974年   58篇
  1973年   61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.
10.
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   
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