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   383篇
  免费   15篇
管理学   48篇
民族学   2篇
人口学   34篇
丛书文集   2篇
教育普及   1篇
理论方法论   60篇
综合类   7篇
社会学   199篇
统计学   45篇
  2024年   1篇
  2023年   4篇
  2022年   3篇
  2021年   2篇
  2020年   8篇
  2019年   10篇
  2018年   14篇
  2017年   16篇
  2016年   15篇
  2015年   12篇
  2014年   10篇
  2013年   64篇
  2012年   8篇
  2011年   8篇
  2010年   9篇
  2009年   9篇
  2008年   20篇
  2007年   11篇
  2006年   10篇
  2005年   12篇
  2004年   8篇
  2003年   10篇
  2002年   9篇
  2001年   9篇
  2000年   11篇
  1999年   7篇
  1998年   4篇
  1997年   7篇
  1996年   5篇
  1995年   2篇
  1994年   7篇
  1993年   4篇
  1992年   8篇
  1991年   4篇
  1990年   4篇
  1989年   1篇
  1988年   5篇
  1987年   6篇
  1986年   7篇
  1985年   7篇
  1984年   5篇
  1983年   5篇
  1982年   3篇
  1980年   3篇
  1979年   2篇
  1978年   3篇
  1971年   1篇
  1970年   3篇
  1968年   2篇
排序方式: 共有398条查询结果,搜索用时 31 毫秒
11.
This article compares mothers’ experience of having children with more than one partner in two liberal welfare regimes (the United States and Australia) and two social democratic regimes (Sweden and Norway). We use survey-based union and birth histories in Australia and the United States and data from national population registers in Norway and Sweden to estimate the likelihood of experiencing childbearing across partnerships at any point in the childbearing career. We find that births with new partners constitute a substantial proportion of all births in each country we study. Despite quite different arrangements for social welfare, the determinants of childbearing across partnerships are very similar. Women who had their first birth at a very young age or who are less well-educated are most likely to have children with different partners. The educational gradient in childbearing across partnerships is also consistently negative across countries, particularly in contrast to educational gradients in childbearing with the same partner. The risk of childbearing across partnerships increased dramatically in all countries from the 1980s to the 2000s, and educational differences also increased, again, in both liberal and social democratic welfare regimes.  相似文献   
12.
Listeria monocytogenes is a leading cause of hospitalization, fetal loss, and death due to foodborne illnesses in the United States. A quantitative assessment of the relative risk of listeriosis associated with the consumption of 23 selected categories of ready‐to‐eat foods, published by the U.S. Department of Health and Human Services and the U.S. Department of Agriculture in 2003, has been instrumental in identifying the food products and practices that pose the greatest listeriosis risk and has guided the evaluation of potential intervention strategies. Dose‐response models, which quantify the relationship between an exposure dose and the probability of adverse health outcomes, were essential components of the risk assessment. However, because of data gaps and limitations in the available data and modeling approaches, considerable uncertainty existed. Since publication of the risk assessment, new data have become available for modeling L. monocytogenes dose‐response. At the same time, recent advances in the understanding of L. monocytogenes pathophysiology and strain diversity have warranted a critical reevaluation of the published dose‐response models. To discuss strategies for modeling L. monocytogenes dose‐response, the Interagency Risk Assessment Consortium (IRAC) and the Joint Institute for Food Safety and Applied Nutrition (JIFSAN) held a scientific workshop in 2011 (details available at http://foodrisk.org/irac/events/ ). The main findings of the workshop and the most current and relevant data identified during the workshop are summarized and presented in the context of L. monocytogenes dose‐response. This article also discusses new insights on dose‐response modeling for L. monocytogenes and research opportunities to meet future needs.  相似文献   
13.
Creative problem solving is seldom addressed directly in the decision sciences literature. The first half of this paper reviews current thinking about creativity and its educational importance. The remainder addresses creative problem-solving processes and, in particular, the process developed by Parnes, Noller and Biondi [24] and Osborn [23]. This process has been integrated into an OR/MS problem-solving course which is described. Conclusions and implications for decision sciences education and practice in general are discussed.  相似文献   
14.
Lipsky's analysis of the implementation gap in welfare policy in ‘Street-level Bureaucracy’ focuses on the problem of front-line discretion but ‘brackets off’ the discretion of senior managers. In this paper I draw on a qualitative study to argue that senior managers can also exercise significant discretion and that their discretion can contribute to the conditions of policy confusion and contradiction, and resource inadequacy that characterise ‘the corrupted world of service’ of front-line discretion. In this context front-line discretion may be used by front-line staff to bridge the policy implementation gap created by senior managers.  相似文献   
15.
Under conditions of degeneracy, sensitivity analysis information such as cost and right-hand-side ranges, which are produced by standard linear programming procedures used in commercial codes, can be misleading. From a managerial perspective, the interpretation of such information can be erroneous. In this paper we present these problems, explain their occurence with elementary examples, and discuss procedures for their resolution.  相似文献   
16.
This article explores the phenomenon of ‘bikelash’, or organised community opposition to cycle lanes. Urban residents commonly cite bicycle lanes, a space on the road reserved for cyclists, as the infrastructure most likely to encourage them to cycle. Yet the introduction of cycle lanes is often controversial. This article explores the phenomenon of bikelash, asking: Why does it occur? And what are the best ways to respond to it? A critical review of the literature on ‘contested’ cycle lane projects is undertaken in order to explore how this phenomenon can best be conceptualised within a mobilities framework.  相似文献   
17.
The Youth Court in Schools Project was implemented in two low-income, violent, racially/ethnically diverse rural counties. This study examined if the presence of Youth Court impacted students’ perceptions of school danger, individual functioning, and interpersonal relationships. Data were gathered from 3454 youth; following multiple imputation, data were analyzed using paired samples t tests. Results indicated that perceptions of school danger increased significantly and self-esteem decreased significantly in the control schools pretest to posttest. Violent behavior, anxiety, friend rejection, and bullying victimization decreased significantly in the Youth Court intervention schools pretest to posttest, but did not change significantly in the control schools. Findings provide preliminary evidence that Youth Court is an effective way of improving school climate, individual functioning, and interpersonal relationships.  相似文献   
18.
The influence of relational identification (RI) on leadership processes and the effects of social identity leadership on followers' responses to stress have received scant theoretical and research attention. The present research advances theoretical understanding by testing the assertion that high RI with the leader drives follower mobilization of effort and psychophysiological responses to stress. Two experimental scenario studies (Study 1 and Study 2) support the hypothesis that being led by an individual with whom followers perceive high RI increases follower intentional mobilization. Study 2 additionally showed that high (vs. low) RI increases follower resource appraisals and cognitive task performance. A laboratory experiment (Study 3) assessing cardiovascular (CV) reactivity showed that, compared to neutral (i.e., non-affiliated) leadership, being led by an individual with whom participants felt low RI elicited a maladaptive (i.e., threat) response to a pressurized task. In addition, relative to the low RI and neutral conditions, high RI with the leader did not engender greater challenge or threat reactivity. In conclusion, advancing social identity leadership and challenge and threat theory, findings suggest that leaders should be mindful of the deleterious effects (i.e., reduced mobilization and greater threat state) of low RI to optimize follower mobilization of effort and psychophysiological responses to stress.  相似文献   
19.
20.
Current research on how adolescents cope with bullying is primarily quantitative, examines youth in Grades 1 through 6, and neglects to specifically assess how victims of bullying cope with being bullied. The current qualitative study explored the coping strategies of 22 rural middle- and high-school youth victimized by bullying. Results indicated that youth report using an array of emotion focused coping strategies (an internal coping strategy that focuses on emotion regulation) and problem focused coping strategies (active behaviors that are aimed to decrease or eradicate the stressor). These coping strategies included help seeking, physical and verbal aggression, standing up for themselves, and prosocial bystander behavior. While the majority of coping strategies were similar between middle- and high-school participants, these groups reported utilizing verbal and physical aggression in different ways. Further, certain coping strategies, such as help seeking and lashing out with physical and verbal aggression, were utilized as both emotion- and problem-focused coping strategies. Implications are discussed.  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