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   29836篇
  免费   1724篇
  国内免费   274篇
耳鼻咽喉   271篇
儿科学   599篇
妇产科学   629篇
基础医学   3069篇
口腔科学   716篇
临床医学   2107篇
内科学   8591篇
皮肤病学   403篇
神经病学   2583篇
特种医学   1092篇
外科学   5499篇
综合类   67篇
一般理论   5篇
预防医学   1244篇
眼科学   538篇
药学   1749篇
中国医学   79篇
肿瘤学   2593篇
  2024年   25篇
  2023年   282篇
  2022年   635篇
  2021年   1076篇
  2020年   622篇
  2019年   877篇
  2018年   1061篇
  2017年   761篇
  2016年   927篇
  2015年   958篇
  2014年   1294篇
  2013年   1580篇
  2012年   2412篇
  2011年   2315篇
  2010年   1350篇
  2009年   1285篇
  2008年   2002篇
  2007年   1976篇
  2006年   1818篇
  2005年   1799篇
  2004年   1711篇
  2003年   1451篇
  2002年   1317篇
  2001年   134篇
  2000年   141篇
  1999年   188篇
  1998年   232篇
  1997年   177篇
  1996年   165篇
  1995年   168篇
  1994年   133篇
  1993年   120篇
  1992年   94篇
  1991年   62篇
  1990年   63篇
  1989年   49篇
  1988年   42篇
  1987年   39篇
  1986年   48篇
  1985年   44篇
  1984年   40篇
  1983年   40篇
  1982年   52篇
  1981年   34篇
  1980年   29篇
  1979年   28篇
  1978年   17篇
  1976年   14篇
  1975年   14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.
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