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   729篇
  免费   15篇
管理学   43篇
民族学   4篇
人口学   56篇
丛书文集   9篇
理论方法论   102篇
综合类   14篇
社会学   495篇
统计学   21篇
  2023年   5篇
  2022年   4篇
  2020年   9篇
  2019年   19篇
  2018年   14篇
  2017年   24篇
  2016年   26篇
  2015年   11篇
  2014年   18篇
  2013年   99篇
  2012年   35篇
  2011年   18篇
  2010年   19篇
  2009年   33篇
  2008年   28篇
  2007年   28篇
  2006年   20篇
  2005年   21篇
  2004年   19篇
  2003年   11篇
  2002年   24篇
  2001年   7篇
  2000年   15篇
  1999年   15篇
  1998年   16篇
  1997年   5篇
  1996年   12篇
  1995年   14篇
  1994年   14篇
  1993年   16篇
  1992年   13篇
  1991年   7篇
  1990年   6篇
  1989年   2篇
  1988年   14篇
  1987年   6篇
  1986年   8篇
  1985年   8篇
  1984年   7篇
  1983年   6篇
  1982年   4篇
  1981年   10篇
  1980年   8篇
  1979年   12篇
  1978年   7篇
  1977年   4篇
  1976年   4篇
  1975年   6篇
  1974年   2篇
  1973年   5篇
排序方式: 共有744条查询结果,搜索用时 62 毫秒
51.
The use of nonhuman primates, particularly rhesus macaques (Macaca mulatta), as the best model for human physiological and cognitive aging is broadly accepted. Studies employing nonhuman primates to investigate behavioral changes that may occur with increasing age, however, are not common mostly because of the unavailability of appropriate subjects. Recent longitudinal human studies suggest that individual personality might play a large role in aging "successfully" and in the retention of high levels of cognition into old age. As a result of the demographic trend of increasing numbers of aged monkeys and apes in captivity, an opportunity exists to further investigate behavioral aging using the monkey model.  相似文献   
52.
53.
The immaturity of the evidence base in some areas of child welfare practice demands that practitioners approach the development and refinement of practice in a systematic way that explicitly seeks to build on and learn from experience. The efforts of public child welfare agencies in Boston and Cleveland show that it is possible to draw on a broader base of knowledge and experience while responding to unique conditions and circumstances in each agency's community.  相似文献   
54.
S Eilon  Bela Gold  Judith Soesan 《Omega》1975,3(3):329-343
This paper describes a case study in the application of a productivity analysis model in a plant producing industrial gases. Although the process is a relatively simple one, several inputs (labour, electricity, capital and some materials) and several outputs (liquid and gaseous oxygen, gaseous nitrogen, argon and a hydrogen-nitrogen mixture) are involved. The case study demonstrates how measures of total input and total output can be applied and analyses the performance of the plant over a 15-month period in terms of a variety of managerial control ratios.  相似文献   
55.
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This paper examines myths and misconceptions about university student volunteering. Our study explored the experiences of...  相似文献   
56.
57.
Abstract

In a national study of the work environment, physical, and mental well-being of more than 2600 Swedish nurses, 30% reported having experienced violence at work. Possible association between violence and a range of occupational, demographic, and lifestyle characteristics were studied. Stepwise multiple linear and logistic regressions were used to further examine risk factors for violence. Occupational factors with significant correlations to workplace violence were nursing discipline (type of ward or facility), years of work experience, supervisory responsibilities, night work, work dissatisfaction, work-related musculoskeletal injury, and frequency of patient handling. Demographic/lifestyle factors related to violence were age, gender, smoking, coffee consumption at work, and use of alcohol to relax after work. The best fit linear regression model explained 17% of the variance in violence, 13%, of the variance in threat of violence. The logistic regression model confirmed an increased risk of violence and threats in psychiatric and geriatric settings. However, much remains unexplained about the aetiology of violencc in health carc settings. This report provides the basis for a pilot intervention study currently in progress.  相似文献   
58.
Abstract

This study uses data from a series of comparative case studies to analyse the interorganizational networks of business associations providing workforce development services in the United States. Three aspects of the networks were of particular interest, including (a) the form the partnerships took, (b) the trade-off to involving educational or community vs. business partners in providing workforce development services and (c) the strengths of associations in brokering services to adults or youth. The findings demonstrate that business associations work in intermediary networks or provide their services directly. The conclusions suggest that human resource development professionals should work more actively with local business associations to recruit, train and provide supports for workers in US firms.  相似文献   
59.
60.
This paper uses qualitative data from interviews with 118 young Londoners (age 12–18) to examine how the universal provision of free bus travel has affected young people’s independent mobility. Drawing on Sen’s capabilities approach, we argue that free bus travel enhanced young Londoners’ capabilities to shape their daily mobility, both directly by increasing financial access and indirectly by facilitating the acquisition of the necessary skills, travelling companions and confidence. These capabilities in turn extended both opportunity freedoms (e.g. facilitating non-‘necessary’ recreational and social trips) and process freedoms (e.g. feeling more independent by decreasing reliance on parents). Moreover, the universal nature of the entitlement rendered buses a socially inclusive way for groups to travel and spend time together, thereby enhancing group-level capabilities. We believe this attention to individual and group capabilities for self-determination provides the basis for a broader and more child-centred view of independent mobility than the typical research focus upon travelling without an adult and acquiring parental permissions.  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