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   27457篇
  免费   760篇
  国内免费   2篇
管理学   3486篇
民族学   161篇
人才学   9篇
人口学   2555篇
丛书文集   169篇
教育普及   2篇
理论方法论   2627篇
现状及发展   1篇
综合类   443篇
社会学   13858篇
统计学   4908篇
  2021年   140篇
  2020年   404篇
  2019年   664篇
  2018年   677篇
  2017年   957篇
  2016年   670篇
  2015年   532篇
  2014年   639篇
  2013年   4621篇
  2012年   932篇
  2011年   872篇
  2010年   680篇
  2009年   647篇
  2008年   705篇
  2007年   739篇
  2006年   681篇
  2005年   642篇
  2004年   631篇
  2003年   529篇
  2002年   573篇
  2001年   695篇
  2000年   586篇
  1999年   540篇
  1998年   449篇
  1997年   412篇
  1996年   414篇
  1995年   393篇
  1994年   389篇
  1993年   382篇
  1992年   420篇
  1991年   411篇
  1990年   388篇
  1989年   387篇
  1988年   364篇
  1987年   356篇
  1986年   319篇
  1985年   370篇
  1984年   372篇
  1983年   348篇
  1982年   289篇
  1981年   242篇
  1980年   271篇
  1979年   274篇
  1978年   231篇
  1977年   216篇
  1976年   208篇
  1975年   207篇
  1974年   184篇
  1973年   137篇
  1972年   124篇
排序方式: 共有10000条查询结果,搜索用时 250 毫秒
981.
(with an introduction by Daniel L. McFadden) The past and the present processes leading to social security legislation inform expectations regarding the future of social security, and with international comparisons, provide lessons to those who would learn them. (JEL H55)  相似文献   
982.
We use a regression discontinuity design to study how academic probation affects outcomes and course‐taking behaviors at a large public university in the United States. Consistent with past work, students placed on probation improve their grade point average (GPA) in the subsequent semester. We document that part of this GPA improvement is attributable to strategic course‐taking, and there is significant heterogeneity in these behaviors across race. Non‐minority students placed on probation attempt fewer credits, easier courses, and are more likely to withdraw from courses in the following term. In contrast, underrepresented minorities exhibit few of these behaviors, consistent with past work that suggests black and Hispanic students are less likely to possess helpful institutional knowledge and use available support systems such as academic counseling. (JEL I20, I23)  相似文献   
983.
Child welfare supervision is fundamental to advancing the quality of practice when seeking to ensure the safety, permanency, and well-being of children. Child welfare supervisors serve administrative, educational, and support functions as they oversee frontline caseworkers and direct service providers. Clinical supervision, a dialog-driven process of case review and consultation is situated within the educational function. The process of clinical supervision is essential to child welfare practice, because it prompts reflection and builds analytical thinking skills needed to address complex situations involved in child protection. Despite increased recognition regarding the importance of clinical supervision, child welfare supervision continues to focus primarily on administrative tasks. Organizational climate and external pressures push this administrative agenda. In addition, many child welfare supervisors lack experience, training, and therefore competency in facilitating clinical case reviews. Strengths-Based Supervision (SBS; Lietz 2013) is a model of clinical supervision that was developed to (a) increase child welfare supervisors’ intentionality regarding the importance of infusing clinical supervision into child welfare supervision and (b) advance the skills needed to implement this practice effectively representing one solution to this ongoing challenge.  相似文献   
984.
We investigated how the visibility of targets influenced the type of point used to provide directions. In Study 1, we asked 605 passersby in three localities for directions to well-known local landmarks. When that landmark was in plain view behind the requester, most respondents pointed with their index fingers, and few respondents pointed more than once. In contrast, when the landmark was not in view, respondents pointed initially with their index fingers, but often elaborated with a whole-hand point. In Study 2, we covertly filmed the responses from 157 passersby we approached for directions, capturing both verbal and gestural responses. As in Study 1, few respondents produced more than one gesture when the target was in plain view and initial points were most likely to be index finger points. Thus, in a Western geographical context in which pointing with the index finger is the dominant form of pointing, a slight change in circumstances elicited a preference for pointing with the whole hand when it was the second or third manual gesture in a sequence.  相似文献   
985.
As life expectancy increases, the role of grandparent has increased in duration and is continually adapting as families change in structure, function and form. Across the past several decades, researchers have examined grandparenting styles, finding some consistency as well as the emergence of newer styles, and evidence that grandparenting styles are related to the age and gender of both the grandparents and the grandchildren. In this study, we investigated young adults’ perceptions of grandparenting quality. University Students (N?=?470) from a Midwestern university responded to an online survey that asked them to evaluate the quality of their grandparents grandparenting now and at two retrospective points in time, childhood and adolescence. We hypothesized that the grandparents' performance of multiple styles of their role would be related to grandparenting quality. In addition, we expected that preferred grandparental roles would vary in relation to grandchildren's gender. The results of regression analysis indicated that, although grandparenting quality tended to decline across the respondents' developmental stages, higher ratings at an earlier stage were related to higher ratings at the latter two stages. Further, grandsons preferred grandparents who performed as supporters and advisors, whereas granddaughters preferred grandparents who functioned as supporter and friend. Overall, grandmothers were likely to be the more significant grandparent. Continual research on both grandchildren and grandparents will be needed to chronicle the development of the grandparental role in changing times.  相似文献   
986.
Social networks are typically associated with recruitment tactics. In this article, I offer an additional perspective on social networks as a constraint to social change and an under‐recognized challenge to reducing consumption. I draw on 45 interviews with: voluntary simplifiers, religious environmentalists, and green home owners. Informants, failing to withdraw from gift‐giving networks, instead (1) negotiate a reduction in gift giving, (2) green gift giving, and (3) attempt to transform gift giving into a tactic for lifestyle change. Rather than viewing social networks as channels for cultural cohesion, I argue that we need to better conceptualize the way culture and networks are co‐constituted by tactics of influence within areas of contention.  相似文献   
987.
In this study, we provide evidence of the theorized connection between community engagement and the development of social capital, and the perceived value or worth of relationships among organizations and stakeholders. Using thematic analysis to understand the policy and practice frameworks of community engagement in Australian local government organizations, our analyses reveal two different types of community engagement—relational and episodic—each of which has the potential to contribute to relational dimension of social capital. The study introduces and develops new thinking around the ideas of episodic and relational engagement within the context of community engagement, and their respective contributions to the development of relational capital. Recognizing and identifying episodic and relational community engagement as separate phenomena allows researchers and practitioners to understand the theoretical dimensions of community engagement as a framework for practice.  相似文献   
988.
Practitioners interview children in a range of settings to assess their wellbeing and to make decisions about their care. These interviews often have a significant memory component. Interviewing children about their past experiences, however, is a challenging task. It requires practitioners to be sensitive to children’s developmental capacities and vulnerabilities, to understand how to facilitate effective retrieval and reporting of information, and to set aside the usual dynamics and expectations of how adults and children communicate. Managing these challenges requires constant evaluation, self-reflection, and professional development. Fortunately, several decades of research into children’s memory and narrative development has provided a robust platform on which to base practice. Here, we provide a framework for devising a general approach to memory interviews with children that is both evidence-based and practical.  相似文献   
989.
Youth experience increased surveillance by and involuntary contact with police officers compared with other age groups. Studies that explore the experiences of youth during these encounters are scant and focus on youth with criminal histories. This research aims to explore the experiences of college-attending youth between 18 and 24 years old in two southern states. The study was designed and conducted according to the tenets of interpretative phenomenological analysis (IPA). Twelve Black youth were recruited and interviewed between April 2015 and April 2016. Three superordinate themes (and subthemes) were identified: (1) negative feelings towards the police; (2) precarity of police encounters (subthemes: police as a threat to welfare; it could be me; steps to follow during police encounters; behavior is irrelevant) and; (3) police response is part of structural racism (subthemes: racism is everywhere; media contributes to racism). The importance of these findings for social work practice and research will be discussed.  相似文献   
990.
La mesure du travail des enfants est une entreprise difficile et incertaine, mais cruciale puisque le ciblage de l'aide en dépend. Dans ce contexte, l'auteure montre à partir de données tanzaniennes, et en utilisant deux définitions du travail des enfants, que le choix du répondant influe considérablement sur les chiffres obtenus, supérieurs de 35 à 65 pour cent quand ce sont les déclarations des enfants qui sont prises en compte plutôt que celles des adultes. Le biais touche 14 à 31 pour cent de l'échantillon. L'écart diminue avec l'âge de l'enfant et se creuse lorsque le répondant adulte est hostile au travail des enfants.  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