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   3248篇
  免费   160篇
管理学   412篇
民族学   23篇
人口学   314篇
丛书文集   14篇
理论方法论   376篇
综合类   19篇
社会学   1965篇
统计学   285篇
  2023年   25篇
  2022年   9篇
  2021年   20篇
  2020年   57篇
  2019年   101篇
  2018年   115篇
  2017年   150篇
  2016年   114篇
  2015年   82篇
  2014年   116篇
  2013年   545篇
  2012年   153篇
  2011年   147篇
  2010年   102篇
  2009年   103篇
  2008年   104篇
  2007年   104篇
  2006年   114篇
  2005年   75篇
  2004年   91篇
  2003年   90篇
  2002年   104篇
  2001年   68篇
  2000年   62篇
  1999年   58篇
  1998年   56篇
  1997年   47篇
  1996年   54篇
  1995年   40篇
  1994年   33篇
  1993年   40篇
  1992年   36篇
  1991年   38篇
  1990年   37篇
  1989年   22篇
  1988年   25篇
  1987年   18篇
  1986年   18篇
  1985年   32篇
  1984年   26篇
  1983年   18篇
  1982年   27篇
  1981年   11篇
  1980年   23篇
  1979年   14篇
  1978年   10篇
  1977年   16篇
  1976年   12篇
  1974年   9篇
  1968年   5篇
排序方式: 共有3408条查询结果,搜索用时 234 毫秒
941.
Because social workers are called to challenge social injustices and create systemic change to support the well-being of individuals and communities, it is essential that social workers develop political efficacy: belief that the political system can work and they can influence the system. This study explored the impact of an intensive political social work curriculum on political efficacy and planned political engagement among social work students and practitioners. The findings suggest this model of delivering a political social work curriculum effectively increases internal, external, and overall political efficacy, and that increasing political efficacy has promise for increasing future political engagement.  相似文献   
942.
Sports are no longer simply extracurricular activities. For many children, sports are curricular, central to their identity, development, and peer and familial relationships. However, sport scholars and sociologists spend little time trying to learn and understand the huge growth in youth sports participation and even less attention to the role of race in youth sports. Sociology could offer much more, but suffers from what James McKee calls ( 1993 ) “the failure of a perspective” with regard to studying and understanding race, racism, and race relations. Critical Race Theory can help to extend the coverage of youth sports to include more input from Youth and of Scholars of Color. In this article, we review a current debate in the sociology of youth sports, which illustrates the gap in understanding the experiences of youth of color and Black athletes in particular. And, we provide solutions and ideas for future research.  相似文献   
943.
As Canadian postsecondary systems have expanded they have become more institutionally differentiated. In British Columbia, distinctions are made between research‐intensive universities (RIUs) and teaching‐intensive universities with respect to resources, programming, and perceived prestige value. We employ an effectively maintained inequality framework to examine the role played by ethnicity in the competition for admission to RIUs. Our findings indicate that, together with socioeconomic status and gender, ethnicity is significantly related to RIU attendance rates. Ethnic group differences were particularly marked—Chinese and Korean speakers being most likely and Tagalog speakers least likely to attend an RIU. High school grade point averages and English language proficiency scores moderated only some of these differences, raising questions about the efficacy of competitive admissions policies based solely on academic merit.  相似文献   
944.
The aim of this study was to determine potential explanatory factors that may be associated with different attitudes amongst the global population of elite footballers to the use of different surfaces for football. A questionnaire was used to capture elite football players’ perceptions of playing surfaces and a mixed effects ordinal logistic regression model was used to explore potential explanatory factors of players’ perceptions. In total, responses from 1129 players from 44 different countries were analysed. The majority of players expressed a strong preference for the use of Natural Turf pitches over alternatives such as Artificial Turf. The regression model, with a players’ country as a random effect, indicated that players were less favourable towards either Natural Turf or Artificial Turf where there was perceived to be greater variability in surface qualities or the surface was perceived to have less desirable properties. Player’s surface experience was also linked to their overall attitudes, with a suggestion that the quality of the Natural Turf surface players experienced dictated players’ support for Artificial Turf.  相似文献   
945.
We present a local density estimator based on first-order statistics. To estimate the density at a point, x, the original sample is divided into subsets and the average minimum sample distance to x over all such subsets is used to define the density estimate at x. The tuning parameter is thus the number of subsets instead of the typical bandwidth of kernel or histogram-based density estimators. The proposed method is similar to nearest-neighbor density estimators but it provides smoother estimates. We derive the asymptotic distribution of this minimum sample distance statistic to study globally optimal values for the number and size of the subsets. Simulations are used to illustrate and compare the convergence properties of the estimator. The results show that the method provides good estimates of a wide variety of densities without changes of the tuning parameter, and that it offers competitive convergence performance.  相似文献   
946.
This article reports findings from a 13‐month ethnographic study of knowledge use and expertise among 78 workers in a U.S. residential treatment center for children. It investigates the question of how youth care workers developed expertise in an organization that did not require graduate professional education and provided little didactic training. It demonstrates how processes of informal apprenticeship allowed some workers to develop locally recognized expertise through working alongside more experienced peers. It analyzes the puzzling initial finding that workers simultaneously attributed expertise to innate “common sense” and reported that they developed this form of expertise through informal on‐the‐job apprenticeship. Taking a cultural perspective on learning, this article conceptualizes youth‐serving organizations as communities of practice in which informal apprenticeship contributes to the development of locally valued forms of expertise and addresses the question of why youth care workers appeared to differ in their ability to make use of opportunities for such learning. It explores implications of these findings for workforce development in youth residential treatment and for social work education in general, suggesting simple methods for maximizing opportunities for situated learning.  相似文献   
947.
Endings in youth mentoring relationships have received little attention to date despite the frequency with which they occur. In this paper, we bring an attachment theory perspective to bear on youth mentoring relationship closures and consider how the rich empirical and theoretical literature on attachment can inform mentoring programme practice and possibly help prevent premature and poorly handled mentoring relationship endings. We consider what is known about endings in youth mentoring relationships, articulate an attachment perspective on mentoring relationships and their endings and offer recommendations informed by these literatures for how mentoring programmes can promote positive closure when relationships come to an end.  相似文献   
948.
Children from prior relationships potentially complicate fertility decision-making in new cohabitations and marriages. On the one hand, the “value of children” perspective suggests that unions with and without stepchildren have similar—and deliberate—reasons for shared childbearing. On the other hand, multipartnered fertility (MPF) research suggests that childbearing across partnerships is often unintended. Using the 2006–2010 National Survey of Family Growth and event-history models, I examine the role of stepfamily status on cohabiting and married women’s fertility and birth intendedness, with attention to union type and stepfamily configuration. Adjusting for covariates, women in stepfamily unions are more likely to have a first shared birth in a union than women in unions in which neither partner has children from past relationships, but stepfamily births are less likely to be intended than unintended. Further, this association varies by union type: married women have similar birth risks across stepfamily status, but births are less likely to be intended in marital stepfamilies. For cohabitors, women in a stepfamily are more likely to have a birth than women in nonstepfamily unions, with no differences in intendedness. Configuration (whose children and how many) also matters; for instance, women with one child from a past relationship are more likely to have a birth and to have an intended than unintended birth than women with other stepfamily configurations. It appears that children from either partner’s prior relationships influences subsequent fertility decision-making, undermining the utility of the “value of children” perspective for explaining childbearing behaviors in complex families.  相似文献   
949.
950.
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