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   39347篇
  免费   2420篇
  国内免费   341篇
耳鼻咽喉   356篇
儿科学   798篇
妇产科学   1003篇
基础医学   4339篇
口腔科学   1051篇
临床医学   3046篇
内科学   10486篇
皮肤病学   555篇
神经病学   3319篇
特种医学   1468篇
外国民族医学   3篇
外科学   7077篇
综合类   297篇
一般理论   9篇
预防医学   1697篇
眼科学   660篇
药学   2242篇
  1篇
中国医学   105篇
肿瘤学   3596篇
  2024年   29篇
  2023年   340篇
  2022年   539篇
  2021年   1364篇
  2020年   769篇
  2019年   1088篇
  2018年   1316篇
  2017年   943篇
  2016年   1133篇
  2015年   1196篇
  2014年   1600篇
  2013年   1995篇
  2012年   3099篇
  2011年   2954篇
  2010年   1691篇
  2009年   1574篇
  2008年   2527篇
  2007年   2527篇
  2006年   2295篇
  2005年   2300篇
  2004年   2182篇
  2003年   1876篇
  2002年   1727篇
  2001年   477篇
  2000年   472篇
  1999年   513篇
  1998年   319篇
  1997年   277篇
  1996年   235篇
  1995年   217篇
  1994年   203篇
  1993年   175篇
  1992年   259篇
  1991年   209篇
  1990年   187篇
  1989年   185篇
  1988年   115篇
  1987年   153篇
  1986年   123篇
  1985年   92篇
  1984年   101篇
  1983年   75篇
  1982年   76篇
  1981年   61篇
  1980年   55篇
  1979年   65篇
  1978年   35篇
  1976年   41篇
  1975年   36篇
  1974年   40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