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   138篇
  免费   2篇
管理学   32篇
民族学   3篇
人口学   16篇
理论方法论   11篇
综合类   1篇
社会学   49篇
统计学   28篇
  2023年   2篇
  2020年   4篇
  2019年   3篇
  2018年   3篇
  2017年   6篇
  2016年   7篇
  2015年   3篇
  2014年   3篇
  2013年   20篇
  2012年   7篇
  2011年   8篇
  2010年   3篇
  2009年   4篇
  2008年   3篇
  2007年   2篇
  2006年   3篇
  2005年   5篇
  2004年   4篇
  2003年   6篇
  2002年   2篇
  2001年   3篇
  2000年   3篇
  1999年   2篇
  1998年   3篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   4篇
  1990年   1篇
  1988年   1篇
  1986年   3篇
  1985年   2篇
  1984年   1篇
  1983年   2篇
  1982年   1篇
  1981年   1篇
  1980年   2篇
  1979年   4篇
  1976年   1篇
  1974年   2篇
  1973年   2篇
  1966年   1篇
排序方式: 共有140条查询结果,搜索用时 15 毫秒
21.
The impact of divorce on children has been well documented over the past 30 years. Divorcing parents who are also experiencing clinical depression often have a compromised ability to parent well and to give the children needed support. Children are then impacted both by the divorce itself and the effects of parental depression. They are at higher risk of numerous problems including poorer physical health, deficits in academic performance not attributable to intellectual limitations, poor social functioning, conduct disorder and other disruptive behavior problems, phobias, and other anxiety disorders. Because children of depressed parents are at higher risk for depression themselves, they should be monitored for depressive symptoms. If there are concerns, the child should be assessed by a mental health professional.  相似文献   
22.
ABSTRACT

Substance abuse among older adults is on the rise. Of particular concern is the increase in alcohol and drug use predicted among Latino elders, expected to result from an upsurge in the Latino population and concurrent growth in the number of older adults. Providing effective treatment for this group will require age-specific, culturally competent interventions. However, few studies have focused on geriatric substance abuse among Latinos. This study aims to lay the groundwork for further research by examining perceptions of the problem among treatment providers and researchers in aging and substance abuse. Implications for social work research and practice are addressed.  相似文献   
23.
In what percentage of married couples do wives outearn their husbands, and, moreover, how persistent are these patterns? This study systematically examined variation in point-in-time estimates across alternative measures of earnings, definitions of types of couples, and data sources and gauged the persistence of these patterns for a period of three calendar years using data from the 2000 Current Population Survey and the 1996–2000 Survey of Income and Program Participation. Among the findings are that in 19% to 30% of all married couples, wives have higher earnings than their husbands. In 60% of such couples, this arrangement persists over the three-year period; for the rest, this arrangement is transitory.  相似文献   
24.
25.
This paper considers regression models for cross‐section data that exhibit cross‐section dependence due to common shocks, such as macroeconomic shocks. The paper analyzes the properties of least squares (LS) estimators in this context. The results of the paper allow for any form of cross‐section dependence and heterogeneity across population units. The probability limits of the LS estimators are determined, and necessary and sufficient conditions are given for consistency. The asymptotic distributions of the estimators are found to be mixed normal after recentering and scaling. The t, Wald, and F statistics are found to have asymptotic standard normal, χ2, and scaled χ2 distributions, respectively, under the null hypothesis when the conditions required for consistency of the parameter under test hold. However, the absolute values of t, Wald, and F statistics are found to diverge to infinity under the null hypothesis when these conditions fail. Confidence intervals exhibit similarly dichotomous behavior. Hence, common shocks are found to be innocuous in some circumstances, but quite problematic in others. Models with factor structures for errors and regressors are considered. Using the general results, conditions are determined under which consistency of the LS estimators holds and fails in models with factor structures. The results are extended to cover heterogeneous and functional factor structures in which common factors have different impacts on different population units.  相似文献   
26.
Comment   总被引:1,自引:0,他引:1  
  相似文献   
27.
28.
Abstract

Objective: To examine the prevalence of various types of tobacco-free policies among a US national sample of postsecondary educational institutions (PEIs). Participants: A national sample of US PEIs (N?=?605) attended by the participants of the NEXT Generation Health Study. Methods: Tobacco policies of these PEIs were reviewed to determine if they were e-cigarette-free (yes/no), hookah-free (yes/no), and ACHA-recommended tobacco-free (yes/no) in June–December 2017. Logistic regression models were used to examine the relationships between institutional characteristics and tobacco policies. Results: Overall, 39.2, 26.0, and 20.0% of the sample adopted e-cigarette-free, hookah-free, and ACHA-recommended tobacco-free policies, respectively. Proprietary PEIs (vs. public) were less likely to have ACHA-recommended tobacco-free policies, while PEIs in the South and Midwest (vs. West) were more likely to have ACHA-recommended tobacco-free policies (p?<?0.05). Conclusions: Most sampled PEIs did not have ACHA-recommended tobacco-free polices. Subsequent research needs to investigate how ACHA-recommended tobacco policies influence tobacco use.  相似文献   
29.
This paper discusses some uses in econometrics of empirical process theory for dependent rendom variables. Examples considered include non-standard parametric hypotheses tests and semiparametric estimation. The application of bracketing functional limit results is discussed in some detail  相似文献   
30.
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