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   2987篇
  免费   534篇
管理学   701篇
民族学   7篇
人口学   65篇
理论方法论   593篇
社会学   1848篇
统计学   307篇
  2023年   3篇
  2022年   2篇
  2021年   69篇
  2020年   140篇
  2019年   300篇
  2018年   128篇
  2017年   214篇
  2016年   260篇
  2015年   267篇
  2014年   241篇
  2013年   372篇
  2012年   192篇
  2011年   186篇
  2010年   159篇
  2009年   123篇
  2008年   158篇
  2007年   99篇
  2006年   120篇
  2005年   86篇
  2004年   90篇
  2003年   77篇
  2002年   54篇
  2001年   64篇
  2000年   50篇
  1999年   10篇
  1998年   6篇
  1997年   3篇
  1996年   8篇
  1995年   1篇
  1994年   6篇
  1993年   8篇
  1992年   2篇
  1991年   5篇
  1990年   2篇
  1989年   7篇
  1988年   6篇
  1987年   1篇
  1977年   1篇
  1968年   1篇
排序方式: 共有3521条查询结果,搜索用时 15 毫秒
901.
902.
To explore how parental socialization of emotion may influence children's emotion understanding, which then guides children's interpretations of emotion‐related situations across contexts, we examined the pathways between socialization of emotion and children's adjustment in the classroom, with children's emotion understanding as an intervening variable. Specifically, children's emotion understanding was examined as a mediator of associations between mothers' beliefs about the value and danger of children's emotions and children's adjustment in the classroom within an SEM framework. Classroom adjustment was estimated as a latent variable and included social, emotional, and behavioral indices. Covariates included maternal education, and child gender and ethnicity. Participants were a diverse group of 201 third‐graders (116 African American, 81 European American, 4 Biracial; 48.8% female), their mothers, and teachers. Results revealed that emotion‐related beliefs (value and danger) had no direct influence on classroom adjustment. However, children whose mothers endorsed the belief that emotions are dangerous demonstrated less emotion understanding and were less well‐adjusted in the classroom. Mothers' belief that emotions are valuable was not independently associated with emotion understanding. Findings point to the important role of emotion understanding in children's development across contexts (family, classroom) and developmental domains (social, emotional, behavioral) during the middle childhood years.  相似文献   
903.
Differences in children's self‐regulation are assumed to be explained by genetic factors, socialization experiences, and sociodemographic risk. As for socialization, little research has addressed the influence of having siblings or attending early center based child care on emerging self‐regulation. As regarding sociodemographic risk, few studies have been conducted in countries characterized by high equality and little poverty. In a longitudinal study following 1157 children, we investigated presence of siblings, center care exposure in the first 3 years of life (attendance, hours, and child group size), and family socioeconomic status (SES) as predictors of hot and cool effortful control (EC), at the child's age 48 months. The results showed that having a sibling was consistently related to better hot EC, whereas higher SES predicted better cool EC. A small effect implied that hours in center care at 36 months negatively predicted hot EC, whereas center care group size at 36 months modestly predicted better cool EC. Otherwise, center care variables were unrelated to self‐regulation.  相似文献   
904.
To examine how competition influences resource allocation in 4‐ to 6‐year‐olds, children were assigned to one of two conditions. In the experimental condition children colored a picture for a coloring contest whereas in the control condition they colored a picture to decorate a wall. Subsequently, all children participated in a resource allocation task with another child who was introduced as another participant in the coloring contest or who would also be coloring a picture for the wall. Finally, children were asked how many crayons (out of eight) they wanted to provide to the other child. In the resource allocation task, children made decisions about how to allocate stickers to self and other across four trial types: cost and no cost variations of both advantageous and disadvantageous inequality trials. Children were less prosocial in the experimental condition than in the control condition but only in disadvantageous inequality trials involving a cost. Children in the experimental condition withheld more crayons compared to children in the control condition. These results suggest that competition not only decreases prosocial behavior directly linked to the competition but also decreases generosity when provided with an unrelated resource allocation opportunity.  相似文献   
905.
906.
Stability and change in kindergartners' friendships were examined based on a typology of profiles (stable, fluid, loss, gain, friendless). Our purpose was to determine whether children belonging to the five profiles differed in their social functioning. The sample was composed of 2353 kindergartners. Reciprocal friendships and social functioning indices were measured using peer nominations collected in October and May of the same year. A series of repeated measures analysis of variance indicated that children in the friendless profile were less accepted by their peers, more shy, more withdrawn, and more aggressive than other children. Moreover, children in the stable profile were significantly more accepted by their peers, more prosocial, and less shy than children in the fluid profile. Lastly, children in the loss profile became less accepted by their peers and less prosocial over the course of the year whereas children in the gain profile became more accepted and prosocial.  相似文献   
907.

From 1960 through 1972, Dr. Eugene Saenger oversaw the experimental administration of lethal and near‐lethal doses of radiation to hospital patients at the University of Cincinnati. These experiments were funded by the US Department of Defense, and were specifically designed to acquire military information on the effects of radiation in combat soldiers. Although Saenger's research was terminated after public exposure in 1971, a full and detailed account has not been available until now. The account provided by the President's Advisory Committee on Human Radiation Experiments (ACHRE) in their Final Report of 1995 was incomplete. Our account is based on a reanalysis of all the material available to ACHRE, including highly critical peer reviews by U.C. faculty members. We also present, for the first time, several case histories taken from the medical records of Dr. Saenger's subjects.  相似文献   
908.
The choice of the methodology used to produce a social security pension system's balance sheet is mainly determined by the system's financing approach. In this article, it is shown using the example of the Canada Pension Plan that if the assessment of the financial sustainability of a pay‐as‐you‐go or partially funded system is done through the means of an actuarial balance sheet, then the methodology used should take into account future contributions of current and future participants. The balance sheets produced using the open group approach, as well as methodologies used in United States and Sweden, are discussed.  相似文献   
909.
This paper aims to develop an integrated policy index system using a Surface Measure of Overall Performance (SMOP) approach to comprehensively evaluate and compare the policy input and social output of the retirement payment system in urban and rural China, Hong Kong, Singapore and Taiwan. With this, a tool may be developed to help insightfully examine the old‐age income policies and appropriately, and perhaps theoretically in the future, categorize the types of retirement provisions or social security policies as a whole in the East and West. The results indicate that, particularly in urban China, Hong Kong, Singapore and Taiwan, a low level of de‐familization and medium and high levels of gender equality are the common features of these five pensions in China, Hong Kong, Singapore and Taiwan. Furthermore, it is found that the retirement provisions in China, Hong Kong, Singapore and Taiwan can well be divided into two groups based on the level of pension right protection and illustrate different characteristics between them accordingly. In addition, policy implications and suggestions for further reforms of these retirement payment schemes are elaborated in the light of the findings of this policy index system.  相似文献   
910.
This paper explores the needs and related issues of substance abusing mothers in the child welfare system. Using a framework and through literature review, issues at the micro, mezzo, and macro levels are pinpointed. Six guidelines, incorporating these identified issues, are developed to help practitioners better engage and more effectively work with their clients: (1) treating mothers and children as one unit, (2) providing gender, mother role, and cultural sensitive practice, (3) offering life‐skills training, (4) mobilizing old and facilitating new, nonusing support systems, (5) devising safety plans for children, and (6) organizing an interdisciplinary team and assuming the leadership.  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