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   110199篇
  免费   3889篇
  国内免费   134篇
管理学   11391篇
劳动科学   55篇
民族学   1181篇
人才学   44篇
人口学   7322篇
丛书文集   6172篇
教育普及   1篇
理论方法论   10475篇
现状及发展   1篇
综合类   15007篇
社会学   42765篇
统计学   19808篇
  2023年   581篇
  2022年   527篇
  2021年   868篇
  2020年   1770篇
  2019年   2379篇
  2018年   2358篇
  2017年   3596篇
  2016年   2728篇
  2015年   2701篇
  2014年   3465篇
  2013年   19918篇
  2012年   3677篇
  2011年   3797篇
  2010年   3686篇
  2009年   3940篇
  2008年   3754篇
  2007年   3718篇
  2006年   3905篇
  2005年   3838篇
  2004年   2976篇
  2003年   2542篇
  2002年   2851篇
  2001年   2711篇
  2000年   2155篇
  1999年   1907篇
  1998年   1591篇
  1997年   1428篇
  1996年   1413篇
  1995年   1389篇
  1994年   1318篇
  1993年   1272篇
  1992年   1242篇
  1991年   1164篇
  1990年   1156篇
  1989年   998篇
  1988年   1087篇
  1987年   951篇
  1986年   862篇
  1985年   1051篇
  1984年   1100篇
  1983年   984篇
  1982年   887篇
  1981年   816篇
  1980年   787篇
  1979年   832篇
  1978年   712篇
  1977年   640篇
  1976年   596篇
  1975年   564篇
  1974年   463篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
2.
Battigalli  P.  Cerreia-Vioglio  S.  Maccheroni  F.  Marinacci  M.  Sargent  T. 《Theory and Decision》2022,92(3-4):455-512
Theory and Decision - This paper provides a general framework for analyzing self-confirming policies. We study self-confirming equilibria in recurrent decision problems with incomplete information...  相似文献   
3.
Population Research and Policy Review - The welfare state can be perceived as a safety net which helps individuals adjust to situations of risk or transition. Starting from this idea of the welfare...  相似文献   
4.
This paper contributes to studies on dynamic capabilities (DCs) by showing that a neglected environmental contingency – i.e. the occurrence of a jolt – shapes the DCs–performance relationship. We focus on high-tech entrepreneurial ventures because these are the firms that jolts affect most; in so doing, we also advance the understanding of DCs in the entrepreneurship field. We argue that, in the aftermath of an environmental jolt, the high-tech entrepreneurial ventures that use internationalization and new product development capabilities to modify their resource configuration and regain environmental fit enjoy better performance. Econometric estimates on a sample of 340 Italian high-tech entrepreneurial ventures confronting the consequences of the global economic crisis that began in 2008 confirm that separately using these two DCs has a positive performance effect. This effect is stronger for relatively smaller ventures. Interestingly, despite synergies should arise from the combined use of the two DCs, we do not detect any superadditive effects.  相似文献   
5.
Environmental scanning is a broadly defined concept, having first received attention from scholars in the late 1960s. Over the years a number of similar and overlapping constructs have emerged in management literature. The aim of this study, via a systematic review and thematic analysis of relevant empirical research, is to consolidate foundation environmental scanning knowledge, demonstrate how scanning research has developed and fragmented over time, and propose an agenda for future research. The first contribution of our review is a new typology of environmental scanning research made up of five discrete research views, which provides a more comprehensive and contemporary overview of the field than previous studies. The second is a proposed agenda for future research that explicitly acknowledges the role of technology, an area that is presently underdeveloped in foundation scanning literature. The third contribution is to signpost future directions for research on scanning and organisational performance using a number of theoretical perspectives. The overall outcome of our review is to move scanning research on from increasingly incremental contributions concerned with context to a place where the changing role of technology and the mechanisms through which environmental scanning contributes to competitive advantage can be more thoroughly understood.  相似文献   
6.
Desirable system performance in the face of threats has been characterized by various management concepts. Through semistructured interviews with editors of journals in the fields of emergency response and systems management, a literature review, and professional judgment, we identified nine related and often interchangeably used system performance concepts: adaptability, agility, reliability, resilience, resistance, robustness, safety, security, and sustainability. A better understanding of these concepts will allow system planners to pursue management strategies best suited to their unique system dynamics and specific objectives of good performance. We analyze expert responses and review the linguistic definitions and mathematical framing of these concepts to understand their applications. We find a lack of consensus on their usage between interview subjects, but by using the mathematical framing to enrich the linguistic definitions, we formulate comparative visualizations and propose distinct definitions for the nine concepts. We present a conceptual framing to relate the concepts for management purposes.  相似文献   
7.
优良家风进入民法典,可有效化解婚姻家庭法独特的社会化要求与其并入民法典后的社会化相对不足之间的矛盾。优良家风条款通过导入家庭在身份法上的主体地位、明确家庭关系中行为正当性判断的公共秩序范围与来源,以及制衡婚姻家庭法的财产法化倾向,可有效反映婚姻家庭法的伦理性。优良家风条款的效力构成包含了旨在规制家庭权力、社会权力与国家权力的组织规范效力,以及推动道德教化的倡导性规范效力,但其核心是引导司法过程的行为规范与裁判规范效力。在具体适用上,应着重实现优良家风在处理监护人“失管失教”与家庭成员造成外部损害之间的关联性证明、在合理维护家庭稳定与个人自由之间的平衡,在限制假借身份行为谋取不当财产利益行为的功利性效力,以及在创设基于优良家风的独立法益等方面的规范功能。  相似文献   
8.
Population Research and Policy Review - In the United States, the SNAP and TANF programs provide financial support to low-income households with children. Yet, little is known about the extent of...  相似文献   
9.
The influence of relational identification (RI) on leadership processes and the effects of social identity leadership on followers' responses to stress have received scant theoretical and research attention. The present research advances theoretical understanding by testing the assertion that high RI with the leader drives follower mobilization of effort and psychophysiological responses to stress. Two experimental scenario studies (Study 1 and Study 2) support the hypothesis that being led by an individual with whom followers perceive high RI increases follower intentional mobilization. Study 2 additionally showed that high (vs. low) RI increases follower resource appraisals and cognitive task performance. A laboratory experiment (Study 3) assessing cardiovascular (CV) reactivity showed that, compared to neutral (i.e., non-affiliated) leadership, being led by an individual with whom participants felt low RI elicited a maladaptive (i.e., threat) response to a pressurized task. In addition, relative to the low RI and neutral conditions, high RI with the leader did not engender greater challenge or threat reactivity. In conclusion, advancing social identity leadership and challenge and threat theory, findings suggest that leaders should be mindful of the deleterious effects (i.e., reduced mobilization and greater threat state) of low RI to optimize follower mobilization of effort and psychophysiological responses to stress.  相似文献   
10.
Water is the source of all life, and is closely related to human civilization. It had a special significance in China, so the ancient Chinese created the dragon god as a symbol of China, the Chinese and Chinese civilization. It can be said that the unique hydrological conditions on the territory of China created three great historical miracles: China, the Chinese people, and Chinese civilization. The Chinese have dedicated more effort than people in any other countries to water control and water use in order to make effective use of water resources and prevent flooding. It is their unparalleled achievements that have laid the foundation for these three miracles. Today, the Chinese people are facing unprecedented challenges in water control and water use. Exploring the historical Chinese relationship with water offers a good opportunity to understand the important role that water plays in long-term social development.  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