全文获取类型
收费全文 | 884篇 |
免费 | 44篇 |
专业分类
管理学 | 106篇 |
民族学 | 13篇 |
人口学 | 72篇 |
丛书文集 | 14篇 |
理论方法论 | 82篇 |
综合类 | 161篇 |
社会学 | 419篇 |
统计学 | 61篇 |
出版年
2023年 | 16篇 |
2022年 | 7篇 |
2021年 | 10篇 |
2020年 | 28篇 |
2019年 | 32篇 |
2018年 | 27篇 |
2017年 | 37篇 |
2016年 | 41篇 |
2015年 | 23篇 |
2014年 | 25篇 |
2013年 | 137篇 |
2012年 | 29篇 |
2011年 | 38篇 |
2010年 | 32篇 |
2009年 | 30篇 |
2008年 | 35篇 |
2007年 | 21篇 |
2006年 | 17篇 |
2005年 | 47篇 |
2004年 | 67篇 |
2003年 | 27篇 |
2002年 | 27篇 |
2001年 | 17篇 |
2000年 | 41篇 |
1999年 | 22篇 |
1998年 | 13篇 |
1997年 | 7篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1994年 | 6篇 |
1993年 | 5篇 |
1991年 | 2篇 |
1989年 | 3篇 |
1988年 | 4篇 |
1987年 | 4篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 3篇 |
1981年 | 2篇 |
1980年 | 2篇 |
1979年 | 3篇 |
1975年 | 2篇 |
1974年 | 5篇 |
1973年 | 2篇 |
1972年 | 6篇 |
1971年 | 3篇 |
1969年 | 2篇 |
1967年 | 1篇 |
1966年 | 2篇 |
排序方式: 共有928条查询结果,搜索用时 109 毫秒
1.
Klaus Schneeberger Matthias Huttenlau Benjamin Winter Thomas Steinberger Stefan Achleitner Johann Sttter 《Risk analysis》2019,39(1):125-139
This article presents a flood risk analysis model that considers the spatially heterogeneous nature of flood events. The basic concept of this approach is to generate a large sample of flood events that can be regarded as temporal extrapolation of flood events. These are combined with cumulative flood impact indicators, such as building damages, to finally derive time series of damages for risk estimation. Therefore, a multivariate modeling procedure that is able to take into account the spatial characteristics of flooding, the regionalization method top‐kriging, and three different impact indicators are combined in a model chain. Eventually, the expected annual flood impact (e.g., expected annual damages) and the flood impact associated with a low probability of occurrence are determined for a study area. The risk model has the potential to augment the understanding of flood risk in a region and thereby contribute to enhanced risk management of, for example, risk analysts and policymakers or insurance companies. The modeling framework was successfully applied in a proof‐of‐concept exercise in Vorarlberg (Austria). The results of the case study show that risk analysis has to be based on spatially heterogeneous flood events in order to estimate flood risk adequately. 相似文献
2.
3.
Why do African Americans report higher levels of perceived job insecurity than whites? We analyze data from the 1996 and 1998 General Social Survey to test alternative predictions from the compositional, inclusive‐discrimination, and dispositional perspectives concerning the sources of the racial gap in perceived insecurity. Results from ordered probit regressions provide most support for the inclusive‐discrimination perspective, which maintains that employment practices associated with “modern racial prejudice” induce perceived insecurity on a widespread and generalized basis among African Americans. Accordingly, compared to whites, African Americans experience perceived insecurity net of human capital credentials and job/labor market characteristics. Additional analyses provide one qualification to these findings: dynamics associated with the inclusive‐discrimination perspective are more pronounced in the private sector than the public sector. 相似文献
4.
Research has repeatedly demonstrated that parent and child reports of child behavior and emotional functioning often do not agree in terms of symptom severity or even symptom presence. Given the potential clinical impact that discrepant reports may have on the therapeutic process, a significant amount of research has addressed the factors influencing this observed discrepancy. Traditionally, this research has evaluated the impact of demographic factors on mean differences and obtained correlation coefficients between parent and child reports. The current research improves upon previous research in this area in two ways. First, the current research uses parent and child measures with identical rather than similar items as is commonly found in previous research. Second, the current research moves beyond identifying demographic influences on discrepant reports by explaining observed discrepancies in terms of differences in parent and child perceptions of typical child behavior.David Carlston and Benjamin Ogles are affiliated with Department of Psychology, Ohio University, Athens, USA.Funding for this project was provided by the Ohio Department of Mental Health. 相似文献
5.
李贺的比喻和一般比喻差别很大,他经常颠倒喻词和被喻词之间的关系,给人带来震撼。这种比喻方法,不仅表现了李贺心中万物平等的思想,也展现了迥异现实的另一世界的景象。 相似文献
6.
Many studies have shown that multinational firms pay more than domestic firms in Third World countries. Economists who criticize
sweatshops have responded that multinational firms’ wage data do not address whether sweatshop jobs are above average because
many of these jobs are with domestic subcontractors. We compare apparel industry wages and the wages of individual firms accused
of being sweatshops to measures of the standard of living in Third World economies. We find that most sweatshop jobs provide
their workers an above average standard of living.
The authors thank Jeffery Hummel, Charles Murray, Larry Pratt, and Edward Stringham for helpful comments on earlier drafts.
Financial support from the American Institute for Economic Research is gratefully acknowledged. The usual disclaimer applies. 相似文献
7.
8.
数字化和人工智能在很大程度上作用于刑法中的罪责并改变了个人责任的基本概念。对于人类与机器人和人工智能系统之间的合作,要在个案中详细地审查:机器如何参与决定的作出,人类的行为空间如何发挥作用,以及个人的罪责是否被阻却或至少被极大地减轻。完全或在部分范围内让机器作出决定,会对罪责概念以及进一步对刑事责任产生许多问题,包括过失犯的预见可能性、客观归责、不当行为的可证明性等。在刑法上进行新的调整可能是有必要的,这涉及罪责、可归责性、可证明性和量刑,同时必须寻找刑法以外的其他解决方案,以持续防止数字化和人工智能系统对刑事责任的扩散。 相似文献
9.
Gordon Steven Struwig Jarè Roberts Benjamin Mchunu Ngqapheli Mtyingizane Samela Radebe Thobeka 《Social indicators research》2019,141(2):791-808
Social Indicators Research - Community and public gatherings are an important component of political participation in sub-Saharan Africa. Formal and informal community meetings and rallies are... 相似文献
10.
Richard G. Spencer Benjamin D. Cortese Vanessa A. Lukas Nancy Pleshko 《The American statistician》2017,71(1):81-87
In a wide variety of biomedical and clinical research studies, sample statistics from diagnostic marker measurements are presented as a means of distinguishing between two populations, such as with and without disease. Intuitively, a larger difference between the mean values of a marker for the two populations, and a smaller spread of values within each population, should lead to more reliable classification rules based on this marker. We formalize this intuitive notion by deriving practical, new, closed-form expressions for the sensitivity and specificity of three different discriminant tests defined in terms of the sample means and standard deviations of diagnostic marker measurements. The three discriminant tests evaluated are based, respectively, on the Euclidean distance and the Mahalanobis distance between means, and a likelihood ratio analysis. Expressions for the effects of measurement error are also presented. Our final expressions assume that the diagnostic markers follow independent normal distributions for the two populations, although it will be clear that other known distributions may be similarly analyzed. We then discuss applications drawn from the medical literature, although the formalism is clearly not restricted to that application. 相似文献