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   154篇
  免费   6篇
管理学   27篇
人口学   19篇
理论方法论   10篇
综合类   3篇
社会学   39篇
统计学   62篇
  2022年   2篇
  2021年   1篇
  2020年   4篇
  2019年   8篇
  2018年   5篇
  2017年   13篇
  2016年   7篇
  2015年   7篇
  2014年   7篇
  2013年   42篇
  2012年   6篇
  2011年   8篇
  2010年   7篇
  2009年   4篇
  2008年   3篇
  2007年   7篇
  2006年   4篇
  2005年   3篇
  2004年   2篇
  2003年   3篇
  2001年   2篇
  2000年   1篇
  1998年   1篇
  1997年   2篇
  1995年   1篇
  1994年   1篇
  1986年   1篇
  1984年   1篇
  1982年   3篇
  1981年   1篇
  1980年   1篇
  1975年   1篇
  1973年   1篇
排序方式: 共有160条查询结果,搜索用时 15 毫秒
71.
Partial order methodologies appear as advantageous tools to disclose evaluative trends and developments for time series as, e.g., the fragile states index (FSI). The present study focuses on the variations in the 12 individual indicators of the FSI over the years 2011–2015. The FSI includes in total 178 states and the present study analyzes both the full set of states and a subset comprising only the 28 European Union states. Clear trends are observed. Thus, on a global scale the primary importance of brain drain apparently is turned into group grievance whereas on the European scale the development discloses the increased problems associated with the increasing number of refugees and migrants as well as the declining economic situation in some states. Further the study discloses a series of so-called peculiar states, i.e., states where single indicators values are markedly higher or lower than expected when comparing to the “main stream” of indicator values for the states studied. In all cases the findings were substantiated and verified by available literature.  相似文献   
72.
This study offers a new methodology to measure female disempowerment, where such individuals are denied the liberty of making fundamental life choices, with techniques that have been developed exclusively to measure social deprivation. These multidimensional indicators have been applied to calculate statistics in India at state, regional and national levels, and have provided quantifiable statistics with which to assess regional diversity in gender equity in India. Further, the decomposability property of these indicators have allowed for the identification of those regions (or states) and decisions categories that have contributed more than others to the total disempowerment of women.  相似文献   
73.
74.
In this article, we have developed a Poisson-mixed inverse Gaussian (PMIG) distribution. The mixed inverse Gaussian distribution is a mixture of the inverse Gaussian distribution and its length-biased counterpart. A PMIG regression model is developed and the maximum likelihood estimation of the parameters is studied. A dataset dealing with the number of hospital stays among the elderly population is analyzed by using the PMIG and the PIG (Poisson-inverse Gaussian) regression models and it has been shown that the PMIG model fits the data better than the PIG model.  相似文献   
75.
This article examines the varied impacts of the National Rural Employment Guarantee Scheme (NREGS) as a development delivery institution for the tribal communities vis‐à‐vis other social groups across the Indian States, using the framework of new institutional economics. A number of State‐specific, socio‐economic institutional factors seem to be responsible for these variations. The article therefore suggests institutional reforms and convergence of the development initiatives of the Ministry of Tribal Affairs with the NREGS in order to realise the optimal potential of the scheme, and, in particular, to ensure greater livelihood opportunities for these marginalised groups and their entitlement to productive resources with greater socio‐economic and political empowerment.  相似文献   
76.
A proof is provided to show that Gehan's 1965 generalization of the two sample Wilcoxon test lies outside the class of efficient score procedures for right censored data (Prentice 1978).  相似文献   
77.
A new generalization of the logarithmic series distribution is presented based on a generalized negative binomial distribution obtained from a generalized Poisson distribution compounded with the truncated gamma distribution. By length biasing this generalized log-series distribution, another generalized geometric distribution is uresented. For the generalized log-series distribution, maximum likelihood estimators are developed and an example is presented for illustration.  相似文献   
78.
A bivariate generalisation of the Consul's(1974) quasi-binomial distributionCQBD) has been obtained with the help of an urn-model for eKplaining data obtained as a result of four-fold sampling, The distribution is expected to cover a very wide range of situations in four-fold sampling. The first and the second order moments of the distribution have been obtained,The distribution has been fitted to an observed set of data as an illustration and its limiting form has also been obtained.  相似文献   
79.
This paper deals with the estimation of reliability for a strength-stress model under ordered restriction on the parameters. It is assumed that components have exponential distributions and are arranged in a parallel system and the failure of one component, results in increasing the failure rate of the remaining components. Results are derived when (i) the ordering of the means is taken into account and when (ii) the ordering of the means is ignored. Simulation studies are carried out to compare the results. It is noticed that, in almost all cases, in case (i) the estimates are closer to the true value with smaller mean squared error (MSE) and smaller’ standard deviation than in case (ii). Thus when the ordering of the means is present in the model, such information should be incorporated in the estimation of reliability.  相似文献   
80.
The finite sample distribution of the likelihood ratio sta-tistic is obtained for testing independence, given marginal homo-geneity, in the absolutely continuous bivariate exponential distri-bution of Block and Basu (1974). This test is discussed in light of the analysis of Gross and Lam (1981) on times to relief of head-aches for standard and new treatments on ten subjects.  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