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   994篇
  免费   40篇
  国内免费   6篇
管理学   102篇
劳动科学   2篇
民族学   17篇
人口学   49篇
丛书文集   45篇
理论方法论   107篇
综合类   340篇
社会学   279篇
统计学   99篇
  2023年   5篇
  2022年   11篇
  2021年   10篇
  2020年   10篇
  2019年   24篇
  2018年   33篇
  2017年   28篇
  2016年   27篇
  2015年   20篇
  2014年   30篇
  2013年   138篇
  2012年   71篇
  2011年   36篇
  2010年   35篇
  2009年   37篇
  2008年   31篇
  2007年   32篇
  2006年   29篇
  2005年   29篇
  2004年   29篇
  2003年   45篇
  2002年   71篇
  2001年   55篇
  2000年   37篇
  1999年   8篇
  1998年   7篇
  1997年   7篇
  1996年   6篇
  1995年   10篇
  1994年   13篇
  1993年   10篇
  1992年   6篇
  1991年   8篇
  1990年   9篇
  1988年   9篇
  1987年   7篇
  1986年   4篇
  1985年   4篇
  1984年   5篇
  1983年   5篇
  1982年   6篇
  1981年   7篇
  1980年   6篇
  1979年   5篇
  1978年   2篇
  1977年   5篇
  1976年   4篇
  1975年   3篇
  1973年   2篇
  1972年   2篇
排序方式: 共有1040条查询结果,搜索用时 156 毫秒
31.
和谐历来是中国传统文化的主流思想.以"和"安邦、以"和"治国、以"和"齐家、以"和"平天下,乃中国先人从社会实践中总结出来的重要经验.胡锦涛同志提出构建社会主义和谐社会,就是强调创造性地运用中国传统文化来建设国家,按照和平、和睦、和合、和谐的精神办事,以加速推进全面建设小康社会.  相似文献   
32.
结合旅游学理论,采用文献资料法、数理统计法以及逻辑分析法等,对贵州省潜在的体育旅游资源进行了分析,挖掘出具有地域特点和民族特色的体育旅游资源,对促进贵州省旅游业的可持续发展和体育产业的跨越式发展具有重要意义。  相似文献   
33.
We find that Union Army veterans of the American Civil War who faced greater wartime stress (as measured by higher battlefield mortality rates) experienced higher mortality rates at older ages, but that men who were from more cohesive companies were statistically significantly less likely to be affected by wartime stress. Our results hold for overall mortality, mortality from ischemic heart disease and stroke, and new diagnoses of arteriosclerosis. Our findings represent one of the first long-run health follow-ups of the interaction between stress and social networks in a human population in which both stress and social networks are arguably exogenous.  相似文献   
34.
35.
The study aimed to conduct a literature review as a step of the development of a new questionnaire about the nursing workers' perception of job factors that may lead to musculoskeletal symptoms. An information synthesis was achieved by collecting data from studies that fitted the search criteria. The results showed that despite the existence of several job factors related to musculoskeletal symptoms, no specific questionnaire that evaluates this relationship was found. Therefore, this literature review presents important topics for developing the first questionnaire to analyze work activities that may contribute to pain and discomfort among nursing personnel.  相似文献   
36.
The main objective of this study is to evaluate the impact of school furniture and work surface lighting on the body posture of two public Middle School students from Paraíba (Brazil). The target population included 8th grade groups involving 31 students. Brazilian standards for lighting levels, the CEBRACE standards for furniture measurements and the Postural Assessment Software (SAPO) for the postural misalignment assay were adopted for the measurements comparison. The statistic analysis includes analyses of parametric and non-parametric correlations. The results show that the students' most affected parts of the body were the spine, the regions of the knees and head and neck and about 90% of the students presented postural misalignment. The lighting levels were usually found below 300 lux, below recommended levels. Such results indicate the need of investments in more suitable school furniture and structural reforms aimed at improving the lighting in the classrooms, which could fulfill the students' profile and reduce their complaints.  相似文献   
37.
Due to the increase of production costs in manual harvesting, strategies must be developed in order to overcome these effects, such as the attempts in implementing agricultural machines in harvest activities, whether being totally or partially mechanized. This study brings a qualitative and quantitative comparison on the impacts in work conditions and productivity in Brazilian orchards caused by the use of semi-mechanized harvesting systems, such as multiplatforms. The results come from the application of Ergonomic Work Analysis method, which focuses in the activity, quantifying and analyzing times and frequencies of the harvesting cycle, as well as the amount of movements. To achieve this, footage, interviews and a stopwatch were used in the observation 12 pickers' work cycles, six for each method of harvesting. The data interpretation pointed to improvement in working conditions with a reduction in the amount of movements performed by the picker, and increase of up to 60% in productivity with the use of semi-mechanized harvesting. Thus, the found results indicate the viability of this harvesting method. However, other variables must be observed in future studies in order to complete the guidelines for a healthy progress in the area of citrus harvesting in Brazil.  相似文献   
38.
In the 1990ies the German Federal Institute for Occupational Safety and Health (FIOSH) published "Key Indicator Methods" (KIM) for the evaluation of manual material handling tasks. These methods served as a national German implementation of the EU Manual Handling Directive (90/269/EEC). These methods allow the evaluation of individual handling tasks like lifting or pushing. KIM tools do not allow evaluating complex handling tasks like a combined lifting and pushing task. With respect to the needs at shop floor level (e.g. logistics), MultipLa tries to bridge that gap by means of an EXCEL based worksheet using the KIM philosophy. In the past several algorithms for a risk assessment had been developed. At the moment MultipLa is in a test phase at several automotive OEMs.  相似文献   
39.
To predict the technology acceptance of a system before market release is one of the big challenges of today. Many models are concerned with the question if someone is going to accept the system or not. Within this work a first empirical investigation of a personal trait called Pleasure of Control (PoC) is presented. Pleasure of Control is a construct that divides people into those people enjoy having control over a technical system and those who do not. It is predicted that a high Pleasure of Control leads to a prolonged system usage and unwillingness to accept highly automated systems. This paper presents a first empirical investigation of Pleasure of Control with 10 Persons with focus on usage durations. An experimental study revealed differences in the usage durations of a technical system (Apple iPad) between users with high and user with low Pleasure of Control measures.  相似文献   
40.
In the future the air traffic will rise--the workload of the controllers will do the same. In the BMWi research project, one of the tasks is, how to ensure safe air traffic, and a reasonable workload for the air traffic controllers. In this project it was the goal to find ways how to reduce the workload (and stress) for the controllers to allow safe air traffic, esp. at huge hub-airports by implementing augmented reality visualization and interaction.  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