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   481篇
  免费   23篇
  国内免费   1篇
管理学   95篇
民族学   11篇
人口学   29篇
理论方法论   43篇
综合类   1篇
社会学   254篇
统计学   72篇
  2023年   5篇
  2022年   9篇
  2021年   16篇
  2020年   16篇
  2019年   23篇
  2018年   21篇
  2017年   31篇
  2016年   17篇
  2015年   15篇
  2014年   13篇
  2013年   64篇
  2012年   14篇
  2011年   11篇
  2010年   14篇
  2009年   6篇
  2008年   14篇
  2007年   25篇
  2006年   14篇
  2005年   9篇
  2004年   14篇
  2003年   11篇
  2002年   17篇
  2001年   11篇
  2000年   10篇
  1999年   7篇
  1998年   6篇
  1997年   8篇
  1996年   10篇
  1995年   2篇
  1994年   2篇
  1993年   2篇
  1992年   5篇
  1991年   6篇
  1990年   6篇
  1989年   5篇
  1988年   5篇
  1987年   5篇
  1986年   4篇
  1985年   6篇
  1984年   4篇
  1983年   2篇
  1982年   2篇
  1981年   2篇
  1974年   4篇
  1973年   3篇
  1972年   1篇
  1969年   1篇
  1968年   1篇
  1967年   2篇
  1964年   1篇
排序方式: 共有505条查询结果,搜索用时 234 毫秒
1.
2.
The United States formulates much of its immigration and refugee policy to match economic and political circumstances. We interpret these policy shifts as a set of graduated positions on immigration and refugee flows that attempts to discipline the lives of newcomers and, in so doing, shapes immigrant identities. In this article, we analyse the interplay between the US government and Salvadoran asylum applicants negotiating procedures that grant only temporary relief from deportation via the policy of Temporary Protected Status (TPS). We find that each policy shift results in the strategic renegotiation of asylum applicants’ identities so as to achieve the best opportunity for a successful outcome. Based on Foucault’s ideas of governmentality and Ong’s concept of flexible citizenship, we argue that what appears more superficially as a patchwork strategy of immigration laws and asylum practices may be theorized more deeply as a set of flexible responses by the state that turn on identity construction at different scales, and that aim to mediate transnational relations.  相似文献   
3.
4.
5.
Ecosystems are formed by organisations that jointly create a value proposition that a single firm could not create in isolation. To deliver this value proposition, the partners need a focal firm, the orchestrator, to be align them towards the joint value proposition. Thus, how orchestrators design the alignment structure of an ecosystem is at the very heart of the ecosystem concept – yet it has not been sufficiently addressed by extant research. This is all the more true for the question of how the design of an ecosystem is shaped depending on surrounding conditions. This paper applies a qualitative study with ten cases and, based on the attention-based view of the firm, contributes to research on ecosystems in several ways. First, it explains which ecosystem designs are beneficial under which conditions. Second, it elucidates the structure and activities within ecosystems and shows that start-ups can be just as good ecosystem orchestrators as incumbents. Third, it explains the circumstances under which single vs. multi orchestrator ecosystems occur. Fourth, it presents the conditions when incumbents or start-ups make better orchestrators. Finally, it is among the first studies to apply the attention-based view to business ecosystems, and shows that doing so yields intriguing insights into this emerging field of research.  相似文献   
6.
Estimation from Zero-Failure Data   总被引:2,自引:0,他引:2  
When performing quantitative (or probabilistic) risk assessments, it is often the case that data for many of the potential events in question are sparse or nonexistent. Some of these events may be well-represented by the binomial probability distribution. In this paper, a model for predicting the binomial failure probability, P , from data that include no failures is examined. A review of the literature indicates that the use of this model is currently limited to risk analysis of energetic initiation in the explosives testing field. The basis for the model is discussed, and the behavior of the model relative to other models developed for the same purpose is investigated. It is found that the qualitative behavior of the model is very similar to that of the other models, and for larger values of n (the number of trials), the predicted P values varied by a factor of about eight among the five models examined. Analysis revealed that the estimator is nearly identical to the median of a Bayesian posterior distribution, derived using a uniform prior. An explanation of the application of the estimator in explosives testing is provided, and comments are offered regarding the use of the estimator versus other possible techniques.  相似文献   
7.
Strategic management scholars have long emphasized the importance of innovation for a firm's competitive advantage and performance. However, the current state of knowledge about the strategic management of innovation is characterized by conflicting theoretical predictions, persisting knowledge gaps and theoretical inconsistencies. Adopting a ‘systematic’ approach to reviewing the literature, this paper combines different quantitative methods – co‐word analysis, cluster analysis and frequency analysis – to review 342 articles on the strategic management of innovation published in seven journals from 1992 to 2010. On the basis of these analyses, suggestions are developed for future research which could help to promote future theory development and provide relevant material for policy decisions that managers and executives have to make when they manage innovation.  相似文献   
8.
Emotion understanding is a multifaceted construct made up of several components. To identify how several common components of emotion understanding relate to one another, five emotion understanding tasks were compared within the same group of children. Fifty‐four preschool children (M = 3.81 years, SD = 0.40) were asked to display the typical facial expression of six emotions after hearing their corresponding emotion label. They were then read six vignettes and asked to: “use your face to show how [the protagonist] would feel,” provide an emotion label for the main character, and “choose a picture of a face that would look like [the main character].” Finally, they were asked to provide a label for emotions presented to them in photographs. For all tasks, six emotions were examined: happiness, sadness, anger, fear, surprise, and disgust. With the exception of the two modeling tasks, results show correlations among the emotion understanding tasks. There was a significant interaction between task and emotion category for emotion understanding accuracy. However, there was some consistency in the pattern of discrete emotion categorization emergence across the tasks. Additionally, accuracy scores (representing emotion understanding) across tasks were not equivalent. Findings are discussed in the broader context of emotion understanding.  相似文献   
9.
10.
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