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   27634篇
  免费   1601篇
  国内免费   257篇
耳鼻咽喉   238篇
儿科学   543篇
妇产科学   578篇
基础医学   2818篇
口腔科学   663篇
临床医学   1967篇
内科学   7963篇
皮肤病学   353篇
神经病学   2399篇
特种医学   1051篇
外科学   5169篇
综合类   54篇
一般理论   5篇
预防医学   1054篇
眼科学   523篇
药学   1627篇
中国医学   57篇
肿瘤学   2430篇
  2024年   24篇
  2023年   271篇
  2022年   324篇
  2021年   1021篇
  2020年   585篇
  2019年   837篇
  2018年   1001篇
  2017年   727篇
  2016年   880篇
  2015年   898篇
  2014年   1217篇
  2013年   1496篇
  2012年   2281篇
  2011年   2164篇
  2010年   1249篇
  2009年   1202篇
  2008年   1873篇
  2007年   1815篇
  2006年   1701篇
  2005年   1692篇
  2004年   1592篇
  2003年   1359篇
  2002年   1225篇
  2001年   125篇
  2000年   124篇
  1999年   168篇
  1998年   208篇
  1997年   165篇
  1996年   156篇
  1995年   150篇
  1994年   126篇
  1993年   116篇
  1992年   90篇
  1991年   54篇
  1990年   65篇
  1989年   45篇
  1988年   38篇
  1987年   34篇
  1986年   42篇
  1985年   36篇
  1984年   35篇
  1983年   32篇
  1982年   47篇
  1981年   29篇
  1980年   27篇
  1979年   17篇
  1978年   12篇
  1976年   11篇
  1975年   8篇
  1974年   11篇
排序方式: 共有10000条查询结果,搜索用时 203 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