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   78篇
  免费   1篇
管理学   7篇
人口学   5篇
丛书文集   1篇
理论方法论   5篇
综合类   9篇
社会学   42篇
统计学   10篇
  2020年   2篇
  2017年   1篇
  2014年   5篇
  2013年   9篇
  2012年   5篇
  2011年   9篇
  2010年   5篇
  2009年   4篇
  2008年   1篇
  2007年   4篇
  2006年   3篇
  2005年   2篇
  2004年   1篇
  2003年   2篇
  2002年   5篇
  1997年   1篇
  1995年   2篇
  1994年   1篇
  1991年   2篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1986年   1篇
  1985年   1篇
  1983年   2篇
  1978年   1篇
  1975年   2篇
  1974年   1篇
  1968年   1篇
  1965年   1篇
  1946年   1篇
  1945年   1篇
排序方式: 共有79条查询结果,搜索用时 31 毫秒
41.
以黑龙江省某达斡尔民族学校为个案,探讨了以培养学生民族文化认同感为核心的课程设计与开发,强调当地民族文化课程资源的整合是使达斡尔民族文化完成文化化人的一个前提。对达斡尔民族文化课程开发的意义、达斡尔民族文化传承的教育现状问题以及达斡尔民族文化传承的田野研究:课程设计与开发,包括课程设计与开发的维度、开发途径及课程实施策略等问题进行了分析与探讨。提出了达斡尔民族文化得以保护与传承的重要方式就是通过教育,通过课堂教学,而课程设计与实施要回归生活世界。  相似文献   
42.
On Optimal Point and Block Prediction in Log-Gaussian Random Fields   总被引:1,自引:0,他引:1  
Abstract.  This work discusses the problems of point and block prediction in log-Gaussian random fields with unknown mean. New point and block predictors are derived that are optimal in mean squared error sense within certain families of predictors that contain the corresponding lognormal kriging point and block predictors, as well as a block predictor originally motivated under the assumption of 'preservation of lognormality', and hence improve upon them. A comparison between the optimal, lognormal kriging and best linear unbiased predictors is provided, as well as between the two new block predictors. Somewhat surprisingly, it is shown that the corresponding optimal and lognormal kriging predictors are almost identical under most scenarios. It is also shown that one of the new block predictors is uniformly better than the other.  相似文献   
43.
44.
It is widely perceived that the rising influence of state‐owned energy companies from outside the traditional triad (USA, EU, Japan) is transforming the structure of the global energy market and generating a new wave of resource‐nationalism. There is, however, little empirical analysis of how this process has unfolded. Addressing this empirical gap, in this article I employ a longitudinal social network analysis of the changing corporate relations of five major non‐triad state‐owned energy companies in the period 1997–2007. The findings indicate that, in terms of corporate relations, alongside the global expansion of the non‐triad state‐owned energy companies, there was also an increased integration between them and the private energy companies during this decade. This implies that apart from the resurgence of resource‐nationalism – frequently highlighted in academia and politics – this period also witnessed an increasing transnationalization of the global energy market.  相似文献   
45.
Schließung von Schulen — Chancen für schulische Innovationsprozesse   总被引:1,自引:1,他引:0  
Closing down schools — chances of scholar innovative processes. Coaching as support of merging processesThe author discusses chances and risks of processes of school merging processes as an internal coach of a school board. Conditions for success are named for various levels of hierarchy in the school system. This includes an support by means of coaching and supervision.  相似文献   
46.
Economists usually describe goods as being either (gross) complements or (gross) substitutes. Yet, what is less known is that one good may be a gross substitute for a second good, while the second good is a gross complement to the first good. This article develops a theory of asymmetric gross substitutability and suggests some potential examples and applications. ( JEL D11)  相似文献   
47.
A general model incorporating rent‐seeking activities in the standard neoclassical model of capital accumulation is presented. The welfare of the representative agent is negatively affected by the efficiency of rent‐seeking activities. Although intuitive, this result is not obvious because long‐run income can be positively affected by more efficient rent‐seeking activities. The model is used to provide explanations for some recent experiences in developing countries, including the relative poor performance of economies that experience a move to a more decentralized system and the observed path of total factor productivity (TFP) in countries like Ireland and Venezuela. (JEL D23, D74, O40, O41, O47)  相似文献   
48.
Workers' committees in Israel are adapting to the neoliberal economy, and the resulting changes in the labour market, by increasingly accepting various non‐standard forms of employment. At the same time, however, they are resisting this reconfiguration of the capitalist economy, in an effort to safeguard workers' rights. Torn between the two positions, workers' committees find themselves in a state of permanent “liminality”, their role reduced to merely seeking compromises and ad hoc solutions. As a result, opposition to the adverse effects of non‐standard employment remains localized and fragmented, thereby consolidating such employment arrangements.  相似文献   
49.
In this article, it is shown how to compute, in an approximated way, probabilities of Type I error and Type II error of sequential Bayesian procedures for testing one-sided null hypotheses. First, some theoretical results are obtained, and then an algorithm is developed for applying these results. The prior predictive density plays a central role in this study.  相似文献   
50.
A quasi-identifier is a set of attributes that can be used to re-identify entries in anonymized data sets. A group of individuals is considered about whom quasi-identifying numerical information is disclosed such as date of birth, age, weight, and height. The fraction of individuals is determined whose information is unique in that group and hence is identifiable unambiguously. Nonuniformity can be captured well by a single number, the Kullback-Leibler distance. For example sets of real microdata, given approximations based on Kullback-Leibler distances are accurate. Second, the effect of disclosing more specific or less specific information is analyzed experimentally. Third, the effect of correlation between numerical attributes is measured. A formula gives the re-identifiability level. The approximations are validated using publicly available demographic data sets.  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