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   468篇
  免费   24篇
管理学   32篇
民族学   1篇
人口学   51篇
丛书文集   3篇
理论方法论   64篇
综合类   10篇
社会学   318篇
统计学   13篇
  2023年   5篇
  2022年   2篇
  2021年   1篇
  2020年   9篇
  2019年   17篇
  2018年   22篇
  2017年   26篇
  2016年   18篇
  2015年   19篇
  2014年   10篇
  2013年   77篇
  2012年   22篇
  2011年   23篇
  2010年   21篇
  2009年   18篇
  2008年   17篇
  2007年   22篇
  2006年   15篇
  2005年   22篇
  2004年   18篇
  2003年   21篇
  2002年   12篇
  2001年   16篇
  2000年   6篇
  1999年   5篇
  1998年   5篇
  1997年   7篇
  1996年   8篇
  1995年   4篇
  1993年   3篇
  1992年   2篇
  1991年   1篇
  1990年   5篇
  1989年   2篇
  1987年   3篇
  1985年   1篇
  1983年   3篇
  1980年   2篇
  1979年   1篇
  1978年   1篇
排序方式: 共有492条查询结果,搜索用时 171 毫秒
31.
32.
The main goal of this study was to examine the direct and moderating effects of trustworthiness and modeling on adolescent siblings' adjustment. Data were collected from 438 families including a mother, a younger sibling in fifth, sixth, or seventh grade (M = 11.6 years), and an older sibling (M = 14.3 years). Respondents completed Web‐based surveys describing sibling conflict and warmth. Siblings reported on trustworthiness and modeling, and mothers described adjustment. Sibling conflict was directly associated with internalizing and externalizing behaviors for both siblings. The older siblings' reports of trustworthiness were directly associated with the outcome measures. The younger siblings' reports of trustworthiness were less directly associated, but a possible salutary effect was most evident under the highest levels of sibling conflict or warmth. Higher sibling modeling was a risk factor for adjustment problems in relations characterized by high conflict. Results support exploring trustworthiness as a key dimension of sibling relations.  相似文献   
33.
34.
Childhood behavioral and emotional disorders   总被引:3,自引:0,他引:3  
We reviewed the literature on family treatment for childhood behavioral and emotional disorders and found an increase in the number of studies since 1995; however there was significant variation by disorder and therapy model. There is substantially more research on externalizing disorders (i.e., conduct disorder, attention deficit hyperactivity disorder, oppositional defiant disorder) then internalizing disorders, depression and anxiety disorders. The data support the conclusion that family-based interventions produce results comparable to individually oriented interventions, and in some cases family-based interventions are superior to individual treatments. To date, cognitive behavioral family therapy and parent management have been the two models studied, almost exclusively. Implications for family therapy and future research are considered.  相似文献   
35.
Given i.i.d. observations x1,x2,x3,...,xn drawn from a mixture of normal terms, one is often interested in determining the number of terms in the mixture and their defining parameters. Although the problem of determining the number of terms is intractable under the most general assumptions, there is hope of elucidating the mixture structure given appropriate caveats on the underlying mixture. This paper examines a new approach to this problem based on the use of Akaike Information Criterion (AIC) based pruning of data driven mixture models which are obtained from resampled data sets. Results of the application of this procedure to artificially generated data sets and a real world data set are provided.  相似文献   
36.
Despite the hype surrounding the value‐added potential of e‐business for contemporary firms, the recent technology downturn was marked by poor customer satisfaction from investment in e‐business initiatives. An apparent mismatch between customer expectations and vendor offerings suggested a lack of appropriate methods and techniques for evaluating e‐business. This article draws from a longitudinal research study on the deployment, hosting and integration of application service provisioning (ASP), an e‐business model targeted mainly at small and medium‐sized businesses (SMBs). Using system dynamics as a methodology that addresses the inherent complexity of the ASP model, the article demonstrates how a series of complex inter‐relationships between key performance indicators (KPIs) will impact the business value for customers from ASP vendor products and services. The lessons from this research will be particularly relevant for existing and future ASP vendors and customers.  相似文献   
37.
Research suggests that victims of bullying may lack skills in emotional regulation, a process which facilitates coping with provocative situations to lessen the stress of negative emotions (Cicchetti, Ackerman, & Izard, 1995). The present study examined the emotional regulation and display patterns of victims during classroom bullying episodes. Children in grades one through six were observed during free play in the winter and spring of three consecutive school years. Results of the study indicated that the coping styles observed in victims of bullying can be grouped into two distinct clusters: 1) problem-solving strategies that are associated with the de-escalation and resolution of bullying episodes; and 2) aggressive strategies that tend to perpetuate and escalate the bullying interaction. Parallels were found between victims' and bullies' emotional displays. Results are discussed in the context of how maladaptive emotional regulation processes may act as risk factors for chronic victimization.  相似文献   
38.
The present review critically evaluates evidence from adoption studies on the heritability of antisocial personality, interactions between genetic predispositions and the characteristics of adoptive mothers and fathers, and both the methodological and diagnostic shortcomings of existing studies. The article concludes with directions and suggestions for future research and practice.  相似文献   
39.
Research on sex differences in occupational attainment suggests that working men and working women attain essentially the same mean level of occupational attainment and do so through quite similar processes. A possible explanation for these similarities is that the sample of working women contains an overrepresentation of successful women, since women who can afford not to work will stay out of the labor force unless they find a job commensurate with their education. This we define as a censoring problem. By extending a technique developed by Heckman, we can estimate the structural parameters for all women, regardless of current employment status. This procedure allows us to assess the impact of the censoring problem on women's occupational attainment equations.  相似文献   
40.
Cohabitation has become part of the pathway toward marriage. Prior work focuses on expectations to marry and has ignored cohabitation. Although most young adults are not replacing marriage with cohabitation, but instead cohabit and then marry, it is important to study adolescents’ joint expectations to cohabit as well as marry. Our analyses draw on recently collected data from the Toledo Adolescent Relationships Study (N = 1,293). We find that adolescents are less certain about their cohabitation than marriage expectations. Dating and sexual experience, traditional values, prosocial activities, and parents influence adolescents’ union formation expectations. The findings from this work suggest that adolescents are including cohabitation as part of their future life trajectories but rarely envision cohabitation as substituting for marriage.  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