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   244篇
  免费   6篇
管理学   36篇
民族学   2篇
人口学   34篇
理论方法论   21篇
综合类   3篇
社会学   123篇
统计学   31篇
  2023年   4篇
  2022年   2篇
  2021年   7篇
  2020年   5篇
  2019年   10篇
  2018年   12篇
  2017年   18篇
  2016年   7篇
  2015年   5篇
  2014年   10篇
  2013年   44篇
  2012年   12篇
  2011年   13篇
  2010年   11篇
  2009年   9篇
  2008年   10篇
  2007年   4篇
  2006年   4篇
  2005年   5篇
  2004年   2篇
  2003年   4篇
  2002年   5篇
  2001年   8篇
  2000年   4篇
  1999年   3篇
  1998年   1篇
  1997年   3篇
  1996年   3篇
  1995年   5篇
  1994年   4篇
  1993年   3篇
  1992年   2篇
  1991年   1篇
  1986年   2篇
  1983年   8篇
排序方式: 共有250条查询结果,搜索用时 31 毫秒
101.
102.
"This article highlights some of the principal demographic determinants of recent Cuban emigration, while also considering how these demographic variables interact with other social and economic determinants, utilizing a broad conceptualization of emigration. It also makes reference to Cuban military activities abroad. The conclusions that follow suggest that labor migration is more responsive to demographic factors than some theorists assume."  相似文献   
103.
104.
Multiple hypothesis testing, an important quantitative tool to report the results of scientific inquiries, frequently leads to contradictory conclusions. For instance, in an analysis of variance (ANOVA) setting, the same dataset can lead one to reject the equality of two means, say μ1 = μ2, but at the same time to not reject the hypothesis that μ1 = μ2 = 0. These two conclusions violate the coherence principle introduced by Gabriel in 1969 Gabriel, K. R. (1969), “Simultaneous Test Procedures - Some Theory of Multiple Comparisons,” The Annals of Mathematical Statistics, 40, 224250. Available at http://www.jstor.org/stable/2239213[Crossref] [Google Scholar], and lead to results that are difficult to communicate, and, many times, embarrassing for practitioners of statistical methods. Although this situation is common in the daily life of statisticians, it is usually not discussed in courses of statistics. In this work, we enrich the teaching and discussion of this important topic by investigating through a few examples whether several standard test procedures are coherent or not. We also discuss the relationship between coherent tests and measures of support. Finally, we show how a Bayesian decision-theoretical framework can be used to build coherent tests. These approaches to coherence enlighten when such property is appealing in multiple testing and provide means of obtaining it.  相似文献   
105.
There are multiple factors which contribute to the development of the individual's personality. Many of these factors have been amply discussed in traditional theories of personality formation. An area that has been neglected in these discussions has been the role that poverty and ethnic and cultural factors may have in this regard. This paper offers a discussion of these issues with special emphasis on cultural, ethnic, and socioeconomic factors which tend to characterize the lives of Latino and Black individuals. Recommendations are made for a re-evaluation of the traditional theories of personality when applied to poor and minority individuals.  相似文献   
106.
In this paper we justify the use of the between-groups S-convex relative inequality indices to measure interterritorial convergence. In addition, we provide two appealing extensions to the use of the additive decomposable General Entropy inequality indices. First, multilevel decomposition along several subpartitions is satisfied and a natural application to convergence decomposition along different territorial level arises. Second, further general inequality decomposition along several dimensions is also satisfied. Thus, this framework provides a better explanation of the determinants of convergence (and inequality) when it is decomposed into different dimensions in comparison with other indices available in the literature. Received: 21 May 1999/Accepted: 21 September 2000  相似文献   
107.
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - In the article, we analyse the impact of changing policy environments on the development of the third sector in Europe....  相似文献   
108.
Immigrants represent an increasingly vital component of the U.S. housing market, though there is a substantial and growing gap in homeownership rates between natives and the foreign born. We employ the New Immigrant Survey‐2003 to examine the housing tenure of immigrants recently adjusted to new legal permanent resident status. The results reveal important cross‐national differences in the linkages between transfers to the origin country, relationships with U.S. mainstream financial institutions, previous unauthorized experience, and housing tenure. Analyses also document that immigrants occupy three distinct housing outcomes in America; renting, owning, and living for free.  相似文献   
109.
Objectives. Contemporary patterns of homeownership reflect the continuing racial and ethnic stratification that exists in nearly all areas of American society. Of particular interest, especially within the context of recent immigration legislation, are the homeownership experiences of Mexican immigrants in the United States. Methods. The current study employs unique data from the 2001 Los Angeles County Mexican Immigrant Residency Status Survey (LAC‐MIRSS) to examine the association between diverse forms of legal status and homeownership for Mexican immigrants. Results. Analyses indicate that the relationship between legal status and housing tenure is not statistically significant, after accounting for economic, life‐course/life‐cycle, and assimilation/social capital characteristics. Conclusions. The lack of a significant relationship is contrary to past research, perhaps explained by the explosive growth of the subprime mortgage market in the United States; the increasing recognition by financial institutions of Latino immigrants as a largely untapped, yet emerging, market in the mortgage industry; the availability of alternative forms of identification; and the institutionalization of unauthorized immigration in Los Angeles.  相似文献   
110.
Multistage clonal expansion (MSCE) models of carcinogenesis are continuous‐time Markov process models often used to relate cancer incidence to biological mechanism. Identifiability analysis determines what model parameter combinations can, theoretically, be estimated from given data. We use a systematic approach, based on differential algebra methods traditionally used for deterministic ordinary differential equation (ODE) models, to determine identifiable combinations for a generalized subclass of MSCE models with any number of preinitation stages and one clonal expansion. Additionally, we determine the identifiable combinations of the generalized MSCE model with up to four clonal expansion stages, and conjecture the results for any number of clonal expansion stages. The results improve upon previous work in a number of ways and provide a framework to find the identifiable combinations for further variations on the MSCE models. Finally, our approach, which takes advantage of the Kolmogorov backward equations for the probability generating functions of the Markov process, demonstrates that identifiability methods used in engineering and mathematics for systems of ODEs can be applied to continuous‐time Markov processes.  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