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   396篇
  免费   18篇
管理学   67篇
民族学   3篇
人口学   14篇
理论方法论   42篇
综合类   7篇
社会学   222篇
统计学   59篇
  2023年   2篇
  2022年   3篇
  2021年   3篇
  2020年   9篇
  2019年   16篇
  2018年   15篇
  2017年   18篇
  2016年   15篇
  2015年   21篇
  2014年   12篇
  2013年   56篇
  2012年   18篇
  2011年   21篇
  2010年   10篇
  2009年   12篇
  2008年   17篇
  2007年   7篇
  2006年   18篇
  2005年   16篇
  2004年   4篇
  2003年   12篇
  2002年   9篇
  2001年   11篇
  2000年   9篇
  1999年   7篇
  1998年   8篇
  1997年   12篇
  1996年   6篇
  1995年   3篇
  1994年   3篇
  1993年   5篇
  1992年   5篇
  1991年   6篇
  1990年   2篇
  1989年   4篇
  1988年   2篇
  1987年   2篇
  1986年   1篇
  1985年   3篇
  1984年   2篇
  1983年   3篇
  1981年   1篇
  1980年   1篇
  1978年   1篇
  1975年   1篇
  1973年   1篇
  1970年   1篇
排序方式: 共有414条查询结果,搜索用时 62 毫秒
71.
This research examined the relationships between providing assistance to aging family members, caregivers' age, caregivers' perceptions of their physical health, and caregivers' depressive symptoms. Several alternative hypotheses were examined. Longitudinal data from 1,898 women from the 1992 and 2000 waves of the Health and Retirement Study (HRS) were used. Results indicate a reciprocal relationship between depression and physical health. These processes were examined using a path analysis. Although the evidence only supported one of the hypotheses, this study clearly demonstrated the importance of physical health for the psychological well-being of women in midlife.  相似文献   
72.
气体产业和设备公司发展了许多不同的方式来确保气体传输的安全。本文介绍了气柜、具有净化机制的特殊源系统以及监控设备(包括警报器、阀关闭装置、限流器和气体检测器)。为了正确地认知何种危险会与气体维护相关,同时避免鲁莽所致的交叉使用(例如将氧化剂的系统误用于易燃物),对于气瓶和设备的合理标记也同样重要。本文关注于作为一个站点范围内气体传输系统一部分的气体安全设备。有关的材质、选择标准、基本的注意事项以及其他问题都在下文关于安全和气体纯化的内容中予以讨论。  相似文献   
73.
74.
75.
A significant amount of science coverage can be found nowadays in the mass media and is the main source of information about science for many. Accordingly, the relation between science and the media has been intensively analyzed within the social scientific community. It is difficult to keep track of this research, however, as a flurry of studies has been published on the issue. This article provides such an overview. First, it lays out the main theoretical models of science communication, that is, the ‘public understanding of science’ and the ‘mediatization’ model. Second, it describes existing empirical research. In this section, it demonstrates how science’s agenda‐building has improved, how science journalists working routines are described, how different scientific disciplines are presented in the mass media and what effects these media representations (might) have on the audience. Third, the article points out future fields of research.  相似文献   
76.
This study investigates the effects of integration change on the integration success of German acquisitions in Poland. It is argued that the degree of integration change has a positive impact on two success measures, namely, economic growth and efficient co-operation, in the acquisition target. It is further argued that process transparency, participation and positive reinforcement are moderators in this relationship between degree of integration change and integration success. Hypotheses are tested on 521 Polish employees from twenty-nine German acquisitions made in Poland between 1991 and 1999. The results show that there was a positive relationship between degree of integration change and integration success as expected and that only process transparency emerged as a significant moderator of this relationship. Consequences for post-acquisition management after German acquisitions in Poland and limitations of the study are discussed.  相似文献   
77.
本文就基于能力与资源的思想演化进行了论述,并提出了相应的框架.  相似文献   
78.
Growing demands on welfare services, arising from expanding populations of older people in many countries, has led policy makers to consider the use of information and communications technologies (ICTs) as a means to transform the cost-effective delivery of health and social care. The evidence for these claims is examined by reporting the main findings of a review of worldwide published literature documenting the adoption of health informatics applications to improve health and social care for older people. It focuses around two dimensions of the UK government's programme for 'modernising' public services, which emphasise the use of ICTs to facilitate the sharing of health and social services information and its potential to foster person-centred approaches to independent living. Findings suggest that there is little evidence that these dimensions have been realised in practice and the perceived incompatibility between them is more likely to produce expensive and ineffective health informatics outcomes.  相似文献   
79.
80.
Joint ventures (JVs) often do not create expected value due to power imbalance between partners. Despite the fact that JV partners are embedded in relational constraints, prior research has largely relied on economic reasoning by focusing on equity ownership difference between JV partners as the main source of power imbalance. We extend prior research to also consider important relational factors represented by repeated ties between partners and network openness, as well as institutional status difference and network status difference as two additional dimensions of power imbalance. Our findings indicate that ownership power imbalance by itself does not have a significant effect on value creation. However, value creation is facilitated when there is ownership power imbalance between partners with more repeated ties. In contrast, value creation may be hindered when JV partners with unequal ownership are embedded in more open interfirm alliance networks. Furthermore, value creation is facilitated if JV partners that have unequal ownership also have network status power imbalance in the same direction.  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