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   899篇
  免费   54篇
管理学   156篇
民族学   7篇
人口学   75篇
丛书文集   5篇
理论方法论   128篇
综合类   14篇
社会学   477篇
统计学   91篇
  2023年   9篇
  2022年   4篇
  2021年   9篇
  2020年   19篇
  2019年   27篇
  2018年   34篇
  2017年   50篇
  2016年   40篇
  2015年   23篇
  2014年   28篇
  2013年   121篇
  2012年   42篇
  2011年   43篇
  2010年   34篇
  2009年   28篇
  2008年   39篇
  2007年   36篇
  2006年   35篇
  2005年   27篇
  2004年   41篇
  2003年   30篇
  2002年   28篇
  2001年   20篇
  2000年   19篇
  1999年   11篇
  1998年   14篇
  1997年   12篇
  1996年   11篇
  1995年   4篇
  1994年   7篇
  1993年   9篇
  1992年   9篇
  1991年   8篇
  1990年   10篇
  1987年   7篇
  1986年   3篇
  1985年   6篇
  1984年   4篇
  1982年   9篇
  1981年   3篇
  1980年   5篇
  1979年   2篇
  1978年   6篇
  1977年   4篇
  1976年   3篇
  1975年   2篇
  1974年   3篇
  1973年   2篇
  1972年   2篇
  1971年   2篇
排序方式: 共有953条查询结果,搜索用时 281 毫秒
881.
There have been increasing calls for the United States (U.S.) government’s implementation of broad public access policies mandating free online access to federally funded research. This study examines the potential impact of such a policy on peer-reviewed forestry literature. The authors analyze information about federal government authorship, federal government funding, and U.S. authorship indicated in articles published in five core forestry journals in 2006. The results of the analysis provide evidence that federal public access legislation would have a significant impact on the accessibility of forestry literature published in leading journals in the field.  相似文献   
882.
This article reports two studies that investigated the ways in which children use gender and ethnicity for making judgments about food choice. In Study 1, White and Asian 5- to 10-year-olds (M  =  7.37) were asked to rate how much they and others would like novel non-stereotyped foods. White children inferred that girls and White others would like the foods more than boys and Asian others would. An 'ethnocentric' pattern was found where children inferred that ethnic in-group others' food-liking would be more similar to their own compared with ethnic out-group others. These patterns were replicated with adults. In Study 2, a larger range of foods was used to assess White, Black, and Asian 3- to 8-year-olds (M  =  5.63), followed by gender and ethnic categorization and constancy tasks. Children from five to six years used ethnicity-based reasoning, which was influenced by their ability to categorize themselves and others by ethnicity. The role of social categories in food choice is discussed in the light of theories and research in category-based reasoning.  相似文献   
883.
884.
Sharkey P 《Demography》2012,49(3):889-912
This article focuses on neighborhood and geographic change arising with the first "selection" of an independent residential setting: the transition out of the family home. Data from two sources-the Project on Human Development in Chicago Neighborhoods, and the Panel Study of Income Dynamics-are used to provide complementary analyses of trajectories of change in geographic location and neighborhood racial and economic composition during young adulthood. Findings indicate that for young adults who originate in segregated urban areas and remain in such areas, the period of young adulthood is characterized by continuity in neighborhood conditions and persistent racial inequality from childhood to adulthood. For young adults who exit highly segregated urban areas, this period is characterized by a substantial leveling of racial inequality, with African Americans moving into less-poor, less-segregated neighborhoods. However, the trend toward racial equality in young adulthood is temporary, as the gaps between whites and blacks grow as the young adults move further into adulthood. Crucial to the reemergence of racial inequality in neighborhood environments is the process of "unselected" change, or change in neighborhood conditions that occurs around young adults after they move to a new neighborhood environment.  相似文献   
885.
The US Federal Bureau of Investigation and the Central Intelligence Agency gain autonomy when they exercise executive power, performing tasks that are so urgent, secretive, or forceful that they cannot be anticipated by law. The FBI exhibited a clear instance of autonomy when, with a view to its long term responsibilities, it resisted remaking itself as a counterterrorism agency to the degree that politicians requested. The second case, involving the CIA, produced more mixed results. The agency appeared to exhibit autonomy by exercising its powerful security tasks, including control over information and covert operations, and by resisting a consensus for major organizational change. Nevertheless, its large number of administrative and analytical rather than executive tasks prevented the agency from developing the coherent, independent perspective necessary for a high degree of true autonomy.
Patrick S. RobertsEmail: URL: http://filebox.vt.edu/users/robertsp/

Patrick S. Roberts   is an assistant professor in the Center for Public Administration and Policy in the School of Public and International Affairs at Virginia Tech. His Ph.D. is in government from the University of Virginia and he has held postdoctoral fellowships at Harvard and Stanford universities. Patrick has published articles on disaster and security organizations in a number of scholarly and popular journals.  相似文献   
886.
Customer service is a key component of a firm's value proposition and a fundamental driver of differentiation and competitive advantage in nearly every industry. Moreover, the relentless coevolution of service opportunities with novel and more powerful information technologies has made this area exciting for academic researchers who can contribute to shaping the design and management of future customer service systems. We engage in interdisciplinary research—across information systems, marketing, and computer science—in order to contribute to the service design and service management literature. Grounded in the design‐science perspective, our study leverages marketing theory on the service‐dominant logic and recent findings pertaining to the evolution of customer service systems. Our theorizing culminates with the articulation of four design principles. These design principles underlie the emerging class of customer service systems that, we believe, will enable firms to better compete in an environment characterized by an increase in customer centricity and in customers' ability to self‐serve and dynamically assemble the components of solutions that fit their needs. In this environment, customers retain control over their transactional data, as well as the timing and mode of their interactions with firms, as they increasingly gravitate toward integrated complete customer solutions rather than single products or services. Guided by these design principles, we iterated through, and evaluated, two instantiations of the class of systems we propose, before outlining implications and directions for further cross‐disciplinary scholarly research.  相似文献   
887.
888.
The management of the public lands in the United States has been shaped by the long-running conflict between environmental and utilitarian values. Recently, changing social expectations have increased demand for motorized recreational use and access. Critics contend such use of the public lands is a threat to their ecological health. Yet even as motorized use draws increased scrutiny and challenge, some commentators conclude that the battle is already over—and recreational users have won. This article focuses attention on the U.S. Forest Service and National Park Service and contends they are predisposed as institutions to favor demands for motorized recreational use and access. It concludes that what is needed is an explanation that seeks to place motorized recreational use in a historical and institutional context that offers a more complete understanding of why such users might be winning the battle.  相似文献   
889.
890.
Drawing on the resource‐based view, we propose a configurational perspective of how information technology (IT) assets and capabilities affect firm performance. Our premise is that IT assets and IT managerial capabilities are components in organizational design, and as such, their impact can only be understood by taking into consideration the interactions between those IT assets and capabilities and other non‐IT components. We develop and test a model that assesses the impact of explicit and tacit IT resources by examining their interactions with two non‐IT resources (open communication and business work practices). Our analysis of data collected from a sample of firms in the third‐party logistics industry supports the proposed configurational perspective, showing that IT resources can either enhance (complement) or suppress (by substituting for) the effects of non‐IT resources on process performance. More specifically, we find evidence of complementarities between shared business–IT knowledge and business work practice and between the scope of IT applications and an open communication culture in affecting the performance of the customer‐service process; but there is evidence of substitutability between shared knowledge and open communications. For decision making, our results reinforce the need to account for all dimensions of possible interaction between IT and non‐IT resources when evaluating IT investments.  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