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   226篇
  免费   11篇
管理学   68篇
民族学   3篇
人口学   16篇
理论方法论   10篇
社会学   62篇
统计学   78篇
  2023年   6篇
  2022年   6篇
  2021年   2篇
  2020年   8篇
  2019年   12篇
  2018年   11篇
  2017年   8篇
  2016年   14篇
  2015年   18篇
  2014年   13篇
  2013年   54篇
  2012年   8篇
  2011年   8篇
  2010年   5篇
  2009年   6篇
  2008年   4篇
  2007年   2篇
  2006年   1篇
  2005年   5篇
  2004年   2篇
  2003年   3篇
  2002年   2篇
  2001年   3篇
  2000年   5篇
  1999年   1篇
  1998年   3篇
  1997年   3篇
  1996年   2篇
  1995年   1篇
  1993年   4篇
  1992年   3篇
  1990年   2篇
  1989年   2篇
  1988年   2篇
  1987年   1篇
  1985年   1篇
  1982年   2篇
  1981年   1篇
  1979年   2篇
  1976年   1篇
排序方式: 共有237条查询结果,搜索用时 296 毫秒
111.
Many studies to date regarding public support for welfare-state programs do not have an adequate theoretical model and fail to consider differences in public support for contributory vs. means-tested programs. Moreover, these studies seldom take into account cross-cultural variations. This study presents and tests the validity of a three-tier model in which socio-economic variables influence social ideologies which, in turn, differentially affect support for contributory and means-tested programs. Using comparable data from two countries — Israel and the United States — a path analysis with log-linear models is applied, indicating that, while important cross-cultural differences exist, the model is generally confirmed.  相似文献   
112.
Using the secularization theory and the Marxistnotion of religion as masking class conscienceone would expect the importance of religion andreligious involvement today to wane and belimited to lower class members. To challenge thisexpectation, using a representative nationaltelephone survey of 2004 youth (ages 11–18) andtheir parents, we attempt to answer thefollowing two questions: How religious areteenagers, and what may explain variation inreligious perception and involvement amongteens. Findings suggest that religion remainsperceived as very important by most teenagersand parents report that about two-thirds ofteenagers attended a place of worship at leastmonthly and that two out of five attended asocial group sponsored by a religiousorganization. These findings do not support thesecularization theory. As expected, parentalattendance of religious worship, teen's age,and teen's ethnicity and gender weresignificantly associated with three variablesof religious behavior and attendance. Incontrast to the Marxist notion of religion,measures of socio-economic status indicatethat, in the contemporary United States,religious participation, but not beliefs, islargely the domain of the middle-upper classes.  相似文献   
113.
This paper presents the results of a case study looking at the views of teachers and other educational professionals pertaining to the academic progress and general integration of immigrant schoolchildren in multicultural schools in the province of Huelva (Andalusia, Spain). It is organised into three sections: first, the geographical and social context of the study is described, focusing in particular on the impact on schools of migratory trends within the province associated with strawberry cultivation. This is followed by a presentation of the results of a field study into the educational panorama of immigrant pupils from various countries, drawing on verbal reports by teachers and school administrators. Finally, some conclusions are suggested for possible categories of analysis with a view to opening new lines of research in the future.  相似文献   
114.
115.
Malaria is a parasitic infectious tropical disease that causes high mortality rates in the tropical belt. In Venezuela, Sucre state is considered the third state with most disease prevalence. This paper presents a hierarchical regression log-Poisson space-time model within a Bayesian approach to represent the incidence of malaria in Sucre state, Venezuela, during the period 1990–2002 in 15 municipalities of the state. Several additive models for the logarithm of the relative risk of the disease for each district were considered. These models differ in their structure by including different combinations of social-economic and climatic covariates in a multiple regression term. A random effect that captures the spatial heterogeneity in the study region, and a CAR (Conditionally Autoregressive) component that recognizes the effect of nearby municipalities in the transmission of the disease each year, are also included in the model. A simpler version without including the CAR component was also fitted to the data. Model estimation and predictive inference was carried out through the implementation of a computer code in the WinBUGS software, which makes use of Markov Chain Monte Carlo (MCMC) methods. For model selection the criterion of minimum posterior predictive loss (D) was used. The Moran I statistic was calculated to test the independence of the residuals of the resulting model. Finally, we verify the model fit by using the Bayesian p-value, and in most cases the selected model captures the spatial structure of the relative risks among the neighboring municipalities each year. For years with a poor model fit, the t-Student distribution is used as an alternative model for the spatial local random effect with better fit to the tail behavior of the data probability distribution.  相似文献   
116.
This paper examines whether the combined effects of R&D efforts and the types of knowledge obtained from the invention process determine patent propensity. With this aim, we investigate a unique, manually collected sample of firms and the Spanish and European Patent Offices to analyze how the combination of R&D and knowledge codifiability, observability and simplicity influence the patent decision. Our results contribute to the literature and assist R&D managers by showing that codified knowledge has a positive impact on patent propensity. Furthermore, we find that knowledge observability and simplicity only influence patent propensity when they are combined with internal R&D expenditures.  相似文献   
117.
VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations - This paper should have appeared in the special issue presented here, but was previously published.  相似文献   
118.
Analysing the current political context in Spain is a major challenge to political theory. Spain is experiencing the accumulation of trends that in recent years have focused the attention of most theorists and political scientists: discrediting of the major parties, falling numbers of party members, disaffection, etc. In parallel, this trend has been accompanied by citizen mobilisations that, since 15 May 2011, are manifest in numerous channels and strategies. The aim of this paper was to analyse the complex Spanish context from the monitory democracy proposal. The results show how in recent years processes of public scrutiny have been consolidated through a range of citizen initiatives. The study offers an in-depth analysis of the main characteristics of the most notable cases and monitoring initiatives, and also reflects on their democratising potential.  相似文献   
119.
ABSTRACT

Gasoline service stations that use underground storage tanks (UST) assume that the manufactured tank is an ideal cylindrical shape. This cross-sectional shape plays a crucial role in determining a functional form for the volume of liquid that remains inside the tank. In industry, these formulas are used to compute strapping charts. But realistically, the manufacture, assembly, and installation of a tank may have deviation from the actual tank design (for which strapping charts had been developed). A theoretical volume function (based on tank dimensions) is used alongside of statistical methodology to reconcile volume differences in gasoline dispensed at the pump meters versus that displaced inside the tank. Statistical inventory reconciliation of this nature falls within the family of leak detection methods approved by the EPA (Environmental Protection Agency) and the California Water Resources Board. This methodology can also be used to assess deformation of the cross-sectional shape of the tank. We consider a deformation to an ellipse. Through simulation, we estimate the tank dimensions based on a nonlinear model with normal errors. The use of normal errors naturally facilitates a likelihood ratio test. Through this exploration, an approximation function is developed to help improve the power of the likelihood ratio test.  相似文献   
120.
This article investigates an informal voluntary social arrangement for financial assistance with discrete major life events known in Korea as Sang-Ho-Bu-Jo. This informal voluntary arrangement is neither public nor private, but is based on social networks that produce a unique form of civic society. Sang-Ho-Bu-Jo covers people's transitional one-time needs. This study explores the practice of Sang-Ho-Bu-Jo and its origins and provides the first systematic empirical study of this social phenomenon. Three large databases are used to analyze the scope and level of participation, as well as what variables correlate with such involvement. The study finds a high rate of participation, over 80% of households, and an average investment of 2–4% of household expenditure. Sang-Ho-Bu-Jo can help scholars and policy makers worldwide in understanding the role of socialization, social networks, and social capital in explaining innovative informal methods of social care.  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