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   2504篇
  免费   66篇
管理学   366篇
民族学   14篇
人才学   1篇
人口学   231篇
丛书文集   4篇
理论方法论   304篇
综合类   23篇
社会学   1298篇
统计学   329篇
  2023年   22篇
  2022年   10篇
  2021年   27篇
  2020年   46篇
  2019年   70篇
  2018年   56篇
  2017年   79篇
  2016年   91篇
  2015年   60篇
  2014年   61篇
  2013年   330篇
  2012年   118篇
  2011年   102篇
  2010年   78篇
  2009年   78篇
  2008年   72篇
  2007年   111篇
  2006年   92篇
  2005年   89篇
  2004年   82篇
  2003年   73篇
  2002年   56篇
  2001年   66篇
  2000年   57篇
  1999年   56篇
  1998年   34篇
  1997年   27篇
  1996年   39篇
  1995年   26篇
  1994年   36篇
  1993年   20篇
  1992年   35篇
  1991年   34篇
  1990年   20篇
  1989年   23篇
  1988年   21篇
  1987年   20篇
  1986年   27篇
  1985年   17篇
  1984年   17篇
  1983年   22篇
  1982年   19篇
  1981年   14篇
  1980年   20篇
  1979年   21篇
  1978年   18篇
  1976年   10篇
  1975年   9篇
  1974年   14篇
  1972年   8篇
排序方式: 共有2570条查询结果,搜索用时 187 毫秒
741.
Drawing on data from the Longitudinal Survey of Immigrants to Canada, we analyze factors shaping new immigrants’ month‐by‐month employment trajectories over their first 4 years of settlement. We treat trajectories as multidimensional and holistic entities, seeking to predict the correlates of a set of typical pathways identified via optimal matching techniques and cluster analysis. Human capital attributes and household context shapes trajectories in important ways, but patterns related to bias and discrimination are not straightforward and social ties have little impact.  相似文献   
742.
Casual sexual relationships and experiences (CSREs) are still considered to be detrimental to the psychological well-being of youth even though findings remain inconclusive. Most studies have focused on emerging adulthood. Using a prospective design based on a representative sample of high school students in the province of Québec, we measured sexually active adolescents’ (N = 2,304) psychological well-being six months after engaging in these relationships while controlling for prior well-being. We analyzed two forms of CSREs, friends with benefits (FWB) and one-night stand (ONS) relationships, as well as levels of sexual intimacy. The results show that CSREs had a small impact (small effect sizes) on subsequent psychological well-being, especially among girls; FWB relationships involving penetrative contact increased girls’ psychological distress and both their alcohol and drug consumption. ONSs including sexual touching increased girls’ psychological distress and their drug use. None of the CSREs influenced boys’ psychological well-being. The findings underscored the importance of using caution when arguing that CSREs are detrimental or harmless to the psychological well-being of adolescents. The results also highlight the importance of taking into account gender and forms of CSREs in prevention and health interventions.  相似文献   
743.
744.
745.
The perspectives of marginalised young men on what they value in relationships with social care workers are under‐researched and have not received adequate attention within policy and practice literatures. Moreover, problematic assumptions about gender pervade much political and cultural commentary. Research findings from a study of 50 young men, aged between 16 and 25, attending a range of social care services, are highly significant in this context. They highlight young men's investment in a language of care and respect and their rejection of categorical presumptions. However, the services were steeped in practices and understandings of their marginalisation and offered important opportunities for recognition.  相似文献   
746.
Men are more likely to repartner than women. This pattern might reflect gender disparities in barriers to repartnering. When rates of cohabitation increase, the gender disparity might shrink, as cohabitation is a less institutionalized form of coresidential partnership and therefore has lower entry barriers in comparison to marriage. Using event-history models applied to Czech data from the Generations and Gender Survey, we show that the odds of repartnering were indeed higher among men than among women in the late 20th and early 21st centuries. No significant change in the gender effect, however, was found. Similarly, the analysis revealed no change in the effect of gender on the odds of entering cohabitation rather than marriage.  相似文献   
747.
Abstract

Cultural competence is the cornerstone of engagement in the helping professions. This article is intended to introduce and describe the concept of military- and veteran-connected populations with the intent of promoting awareness of the many individuals in our society whose lives are impacted by military service.  相似文献   
748.
ABSTRACT

An increase in parental substance use disorders (SUD) and the number of infants and toddlers entering foster care has prompted federal and state efforts to change the treatment paradigm toward more integrated and family-centered strategies. The Regional Partnership Grant (RPG) program demonstrated that family-centered strategies can improve child and parent outcomes. The current challenge is to bring effective strategies to scale. This conceptual article highlights the lessons learned from 10 years of implementing and evaluating programs to meet the needs of families affected by parental SUD and child maltreatment. Effective family-centered strategies identified by the RPG program are illustrated with specifics from the Sobriety Treatment and Recovery Team program. These effective strategies could be implemented in any jurisdiction and include (1) collaboration toward integrated services between child welfare and SUD treatment, (2) timely access to SUDS treatment, (3) recovery management and support, (4) tailored family services, and (5) adaptation to local jurisdiction needs. When these strategies are operational, children are more likely to be safe and remain in parent custody, and parents are more likely to achieve sobriety and improve their parental capacity. Future research might examine the unique impact of each of the five strategies independently.  相似文献   
749.
Traditional resampling methods for estimating sampling distributions sometimes fail, and alternative approaches are then needed. For example, if the classical central limit theorem does not hold and the naïve bootstrap fails, the m/n bootstrap, based on smaller-sized resamples, may be used as an alternative. An alternative to the naïve bootstrap, the sufficient bootstrap, which uses only the distinct observations in a bootstrap sample, is another recently proposed bootstrap approach that has been suggested to reduce the computational burden associated with bootstrapping. It works as long as naïve bootstrap does. However, if the naïve bootstrap fails, so will the sufficient bootstrap. In this paper, we propose combining the sufficient bootstrap with the m/n bootstrap in order to both regain consistent estimation of sampling distributions and to reduce the computational burden of the bootstrap. We obtain necessary and sufficient conditions for asymptotic normality of the proposed method, and propose new values for the resample size m. We compare the proposed method with the naïve bootstrap, the sufficient bootstrap, and the m/n bootstrap by simulation.  相似文献   
750.
Residual plots are a standard tool for assessing model fit. When some outcome data are censored, standard residual plots become less appropriate. Here, we develop a new procedure for producing residual plots for linear regression models where some or all of the outcome data are censored. We implement two approaches for incorporating parameter uncertainty. We illustrate our methodology by examining the model fit for an analysis of bacterial load data from a trial for chronic obstructive pulmonary disease. Simulated datasets show that the method can be used when the outcome data consist of a variety of types of censoring.  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