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   19059篇
  免费   518篇
  国内免费   1篇
管理学   2774篇
民族学   69篇
人才学   1篇
人口学   1871篇
丛书文集   76篇
教育普及   2篇
理论方法论   1714篇
现状及发展   1篇
综合类   260篇
社会学   9282篇
统计学   3528篇
  2021年   112篇
  2020年   274篇
  2019年   374篇
  2018年   439篇
  2017年   598篇
  2016年   471篇
  2015年   347篇
  2014年   456篇
  2013年   2984篇
  2012年   631篇
  2011年   608篇
  2010年   445篇
  2009年   369篇
  2008年   443篇
  2007年   458篇
  2006年   452篇
  2005年   439篇
  2004年   401篇
  2003年   375篇
  2002年   417篇
  2001年   520篇
  2000年   529篇
  1999年   460篇
  1998年   340篇
  1997年   309篇
  1996年   322篇
  1995年   301篇
  1994年   284篇
  1993年   288篇
  1992年   342篇
  1991年   316篇
  1990年   285篇
  1989年   290篇
  1988年   288篇
  1987年   250篇
  1986年   243篇
  1985年   277篇
  1984年   266篇
  1983年   250篇
  1982年   216篇
  1981年   180篇
  1980年   164篇
  1979年   194篇
  1978年   176篇
  1977年   160篇
  1976年   134篇
  1975年   157篇
  1974年   118篇
  1973年   115篇
  1972年   93篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
941.
Single women of the Baby Boomer generation are often financially disadvantaged in the retirement planning process due to their lower accumulated savings compared to male retirees. This disadvantage impacts significant consumption decisions such as postretirement housing choices. This study uses the theory of planned behavior to examine how certainty in intentions influences preparing and planning for postretirement housing. A typology of single Baby Boomer women is developed based on their financial, demographic, and psychological circumstances. Each segment likely requires different informational strategies and financial services to foster proactive planning for retirement. Significant implications exist for social policy and the financial services sector.  相似文献   
942.
This study is the first to comprehensively examine the effect of state anti-bullying laws (ABLs) on school safety and youth violence. Using existing data from the Youth Risk Behavior Surveys and the Uniform Crime Reports, and newly-collected data on school shootings, we find little evidence that the typical state ABL is effective in improving school safety and student well-being. However, this null finding masks substantial policy heterogeneity. State mandates that require school districts to implement strong, comprehensive anti-bullying policies are associated with a 7 to 13 % reduction in school violence and an 8 to 12 % reduction in bullying. In addition, our results show that strong anti-bullying policy mandates are associated with a reduction in minor teen school shooting deaths and violent crime arrests, suggesting potentially important spillover effects.  相似文献   
943.
Prior research suggests that congregational characteristics are associated with the racial attitudes of Black churchgoers. This study examines the relationship between congregational diversity and beliefs about the Black/White socioeconomic gap among Black religious adherents. Drawing upon pooled data from the General Social Survey and the National Congregations Study, we fit binary logistic regression models to estimate the association between congregational diversity and the explanations of Black/White economic inequality among Black religious adherents. Findings from our study reveal that congregational diversity is one factor that accounts for intragroup differences in racial attitudes among Black religious affiliates. Relative to Blacks that attend religious services in overwhelmingly Black congregations, Blacks that attend religious services in congregations that are overwhelmingly White are significantly less likely to attribute Black/White socioeconomic gaps to a lack of educational opportunities. Our study demonstrates that congregational diversity is a source of intragroup variation in racial attitudes among Black religious affiliates, which may attenuate the ability of such congregations to bridge racial divisions.  相似文献   
944.
This paper explores the role of local context in cross‐border acquisitions by emerging economy multinational enterprises (EMNEs). It argues that the importance of local context has remained despite the increased global integration of the world economy. Hypotheses are tested using data on Indian acquisitions hosted in 70 countries over an eight‐year period. Results, which are consistent across number and value of cross‐border acquisitions, show that the local context in host countries offers contrasting benefits. Emerging economy multinational enterprises exploited these benefits by embedding in host countries through acquisitions. The acquisition strategy is conventional in the motives underpinning internationalization, but novel in its geographical clustering of host countries, and idiosyncratic owing to the EMNE's ability to draw on home country embeddedness. The paper develops theoretical implications and extends the concept of embeddedness, treating it as a series of internalization or quasi‐internalization decisions across a variety of local contexts by multinationals.  相似文献   
945.
In several areas like global optimization using branch-and-bound methods for mixture design, the unit n-simplex is refined by longest edge bisection (LEB). This process provides a binary search tree. For \(n>2\), simplices appearing during the refinement process can have more than one longest edge (LE). The size of the resulting binary tree depends on the specific sequence of bisected longest edges. The questions are how to calculate the size of one of the smallest binary trees generated by LEB and how to find the corresponding sequence of LEs to bisect, which can be represented by a set of LE indices. Algorithms answering these questions are presented here. We focus on sets of LE indices that are repeated at a level of the binary tree. A set of LEs was presented in Aparicio et al. (Informatica 26(1):17–32, 2015), for \(n=3\). An additional question is whether this set is the best one under the so-called \(m_k\)-valid condition.  相似文献   
946.
947.
ABSTRACT

The article analyses narratives that favoured or opposed European integration in three referendum debates held during the constitutional process of the 2000s: in France and the Netherlands in 2005 (Constitutional Treaty) as well as the first vote in Ireland on the Lisbon Treaty in 2008. In all debates examined, speakers used similar narratives of European integration. While most narrative patterns have transnational character, however, they are also remarkably country-specific. They depend on the specific cultural context and the social positions of the speakers articulating them.  相似文献   
948.
Abstract

The purpose of this study was to analyze the racial and athletic identities of African American male college athletes to determine how the identities might impact the athletic and educational potential and performance of this specific group of college athletes. The study revealed that participants who responded negatively to a poor athletic performance were more likely to have lower levels of academic self-concept. In contrast, college athletes who highly identified with their racial group were more likely to have higher levels of academic self-concept. Overall, the findings reveal the intricacies and complexities of being an African American college student and athlete at predominantly white institutions (PWIs) in the US. As such, the article details the implications of the findings as they relate to African American culture, American sports culture, and higher education realities.  相似文献   
949.
As pathologizing, racialized, and patriarchal rhetoric undergirds neoliberal education reform, deficit narratives characterize the education of Black youth. Such narratives present deep challenges for educational policy and community-based educational spaces. This article explores the ways in which community-based educators resist narratives of damage and struggle in their own personal and professional narratives in order to prevent the cycle of deficit-oriented discourse that follow Black youth through myriad educational spaces. By situating the narratives of community-based educators within a broader policy context shaped by race, class, and gender, this article illustrates the challenges that arise for community-based educators that seek to frame Black youth beyond deficit narratives and who avoid framing themselves as heroes and saviors of Black youth.  相似文献   
950.
Communicating the rationale for allocating resources to manage policy priorities and their risks is challenging. Here, we demonstrate that environmental risks have diverse attributes and locales in their effects that may drive disproportionate responses among citizens. When 2,065 survey participants deployed summary information and their own understanding to assess 12 policy‐level environmental risks singularly, their assessment differed from a prior expert assessment. However, participants provided rankings similar to those of experts when these same 12 risks were considered as a group, allowing comparison between the different risks. Following this, when individuals were shown the prior expert assessment of this portfolio, they expressed a moderate level of confidence with the combined expert analysis. These are important findings for the comprehension of policy risks that may be subject to augmentation by climate change, their representation alongside other threats within national risk assessments, and interpretations of agency for public risk management by citizens and others.  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