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   180篇
  免费   7篇
管理学   6篇
人口学   19篇
理论方法论   25篇
社会学   132篇
统计学   5篇
  2022年   2篇
  2020年   5篇
  2019年   4篇
  2018年   8篇
  2017年   14篇
  2016年   6篇
  2015年   6篇
  2014年   5篇
  2013年   42篇
  2012年   7篇
  2011年   9篇
  2010年   8篇
  2009年   3篇
  2008年   8篇
  2007年   7篇
  2006年   5篇
  2005年   11篇
  2004年   7篇
  2003年   3篇
  2002年   1篇
  2001年   4篇
  2000年   2篇
  1999年   2篇
  1998年   4篇
  1996年   2篇
  1995年   1篇
  1994年   1篇
  1993年   2篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1984年   1篇
  1983年   1篇
  1978年   2篇
  1975年   1篇
排序方式: 共有187条查询结果,搜索用时 125 毫秒
181.
The study on job sharing couples and employers in academia found that, for the couples, the shared and flexible work schedule is conducive to increased cooperation and sharing of work and domestic-related activities, independent of gender, and to enhanced intimacy. Because of how the couples use their “surplus” time, they are working more, not less. Employers recognize the increased productivity, but tend to attribute it to their special couple(s) and not to the alternative work structure. Many employers resist job sharing because part-time work is not considered professional.  相似文献   
182.
183.
Helene Moglen's article is especially welcome, given the paucity of psychoanalytic reflection on ageing. She usefully describes possible ways of managing the losses of ageing through accessing the multiple, decentered self-states embedded in our personal histories. However, I have some queries on her use of contrasting psychic topologies. In particular I wonder whether she is sometimes in danger of seeing images of former selves as being associatively “recovered” in the work of mourning that might be better seen as the more illusive “production” of presumptively anterior contexts and states of mind in the present. I also question how successfully Moglen's positioning of her notion of “transaging” somewhere between “transgender” and “transsexuality” serves to loosen up the vicious binary between “young” and “old. I would appreciate closer attention to the dreaded “feminization” of old age, noting the toxic sexism permeating cultures of ageing. Nevertheless, Moglen offers an excellent opening into this troubling topic.  相似文献   
184.
We study kernel density estimator from the ranked set samples (RSS). In the kernel density estimator, the selection of the bandwidth gives strong influence on the resulting estimate. In this article, we consider several different choices of the bandwidth and compare their asymptotic mean integrated square errors (MISE). We also propose a plug-in estimator of the bandwidth to minimize the asymptotic MISE. We numerically compare the MISE of the proposed kernel estimator (having the plug-in bandwidth estimator) to its simple random sampling counterpart. We further propose two estimators for a symmetric distribution, and show that they outperform in MISE all other estimators not considering symmetry. We finally apply the methods in this article to analyzing the tree height data from Platt et al. (1988 Platt, W.J., Evans, G.M., Rathbun, S.L. (1988). The population dynamics of long-lived conifer (Pinus plaustris) (1988). Amer. Natrualist 131:491525.[Crossref], [Web of Science ®] [Google Scholar]) and Chen et al. (2003 Chen, Z., Bai, Z., Sinha, B.K. (2003). Ranked Set Sampling: Theory and Applications. New York: Springer. [Google Scholar]).  相似文献   
185.
Most firms achieve perfective progress, incrementally improving commodities or productivity. But technological progress is concentrated in a few firms achieving metamorphic progress: forming or transforming industries with technological breakthroughs (e.g., biotechnology, lasers, semiconductors, nanotechnology). Unless congruent with incumbents' science and technology base, metamorphic progress promotes entry. Scientific breakthroughs embodied in discovering scientists, protected by natural excludability and transferred by learning-by-doing-with at the bench generally drive metamorphic progress. Embodied knowledge is rivalrous and leads to entry and industry dominance by star scientist–linked firms. Incorporating this scientific entrepreneurial process is essential to improving—if not transforming—endogenous growth models.  相似文献   
186.
Youth suicide is a leading cause of mortality. Greater still is the prevalence of suicidal behavior and ideation. In this study with 813 secondary school students, we explored youth engagement in structured extracurricular activities as a possible protective factor for suicidal ideation. Personally meaningful youth engagement significantly moderated the relationships between depressive symptoms, risk behaviors, self‐esteem, and social support in the prediction of suicidal ideation. Specifically, the more meaning found in engagement, the less likely youth were to report suicidal thoughts in spite of risk factors. Acknowledging limitations, a focus on engaging youth in well‐selected activities of interest might represent a nonstigmatizing approach to universal prevention. Further research into the mechanisms of such an approach is warranted.  相似文献   
187.
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - Despite the role that non-government organisations, including community development organisations, play in social...  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