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   901篇
  免费   20篇
管理学   132篇
民族学   8篇
人口学   56篇
丛书文集   7篇
理论方法论   95篇
综合类   8篇
社会学   477篇
统计学   138篇
  2021年   7篇
  2020年   10篇
  2019年   17篇
  2018年   13篇
  2017年   19篇
  2016年   18篇
  2015年   15篇
  2014年   30篇
  2013年   203篇
  2012年   27篇
  2011年   20篇
  2010年   24篇
  2009年   14篇
  2008年   25篇
  2007年   18篇
  2006年   33篇
  2005年   32篇
  2004年   20篇
  2003年   17篇
  2002年   28篇
  2001年   20篇
  2000年   16篇
  1999年   12篇
  1998年   17篇
  1997年   9篇
  1996年   13篇
  1995年   10篇
  1994年   14篇
  1993年   16篇
  1992年   7篇
  1991年   11篇
  1990年   9篇
  1989年   4篇
  1988年   10篇
  1987年   12篇
  1986年   8篇
  1985年   5篇
  1984年   8篇
  1983年   12篇
  1982年   8篇
  1981年   10篇
  1980年   11篇
  1979年   11篇
  1978年   8篇
  1977年   6篇
  1976年   12篇
  1975年   16篇
  1974年   6篇
  1973年   6篇
  1972年   5篇
排序方式: 共有921条查询结果,搜索用时 46 毫秒
71.
We conduct a comprehensive examination of the gender differences in pay focusing on multiple perspectives emanating from economics, social psychology, and gender studies. Data are drawn from surveys of MBA students conducted by the Graduate Management Admissions Council. Although women in both samples earn significantly less on average than men, when the effects of the study's variables are considered via multiple regression analysis, no significant difference in annual salary is observed. Our results show the importance of simultaneously considering the impact of human capital, job and firm characteristics, demographics, and cognitive skills. Structural differences are noted in the models estimated separately for men and women. However, the results from decomposing salary differentials are quite consistent with estimates from the single-equation models.  相似文献   
72.
The Zeuthen bargaining model occupies a prominent place among those theories of the bargaining process that have been formulated and expounded by economists. Its solution to the bargaining problem is essentially economic, since invariant utility functions based on economic factors alone determine the outcome. However, this paper shows that a necessary condition for reaching the Zeuthen solution (shown by Harsanyi to be mathematically equivalent to the game-theoretic solution of Nash's theory) is that bargainers initially take up positions on opposite sides of the outcome that maximizes their utility product. Whether utility functions are mutually known or unknown, inherent in the bargaining situation itself is the requirement that bargainers be at least initially uncertain as to each other's subsequent concession behaviour. With uncertainty, von Neumann-Morgenstern rationality implies that each bargainer would make an initial demand that maximizes the expected gain from holding fast. Therefore, even if Zeuthen's concession criterion should subsequently dictate concession behaviour, expected utility maximization within the context of subjective uncertainty may well yield initial demands that are inconsistent with reaching the Nash-Zeuthen solution. Finally, a general methodological conclusion that emerges from the analysis is that, since the bargaining process necessarily proceeds from a context of subjective uncertainty, greater emphasis needs to be placed on its role as a device for affecting expectations.  相似文献   
73.
In 1965, when affirmative action officially became part of the national consensus to achieve racial social justice, it was based on the compelling justification of establishing equality and remedying the effects of past discrimination. Since then, there has been a slow but steady shift from "equity" to "diversity" as its rationale. The shift has had a negative effect on achieving the original goal of racial equality. The diversity rationale has permitted parallel procedures to evolve that provided majority students with an even larger differential advantage than that conferred on minority students by affirmative action. In addition, we continue to have massive segregation. Minorities are concentrated in second level schools in urban areas, while whites are concentrated in higher quality institutions in the educational suburbs. It is without factual or legal foundation that whites can argue that they (relative to minorities) are the victims of discrimination through unfair and unequal educational policies and practices that determine access to higher education.  相似文献   
74.
75.
76.
77.
78.
The one-way random effects model with unequal variances and unequal sample sizes is considered. Estimation of the variances, variance of a single observation (total variance), and the standard error of the unweighted mean are considered. Precision of the Analysis of Variance and Unweighted Sums of Squares type of estimators and the Minimum Norm Quadratic Unbiased Estimators with a priori weights are examined.  相似文献   
79.
During the 1960s, the new generation changed the American Creed by deemphasizing sensitivity to evidence, emphasizing feelings and deductive thought, while assuming an adversarial position against the sociopolitical order and embracing the American Black's struggle against racism. Driven by pain, fueled by fear and anger and oriented by existential values of being the Civil Rights Movement, sought to actualize political values of justice and equality. As peaceful demonstrations dwindled, violence increased, converting individual anger to social rage. Anger's cognitive structure changed the concept of society into a dichotomy of Black victims and Ulhite oppressors, forming an ethic of sensitivity with victims occupying the moral high ground. Pain and tragedy were banished from view and blamed on oppressors as individual identities divested civil traits and acquired cultural identity, disuniting the civil society. Rubbing against the American Creed, the ethic ofsensitivity produced a feeling of malaise posing a threat to mentaL health.  相似文献   
80.
Magnetic resonance imaging techniques can be used to measure some biophysical properties of tissue. In this context, the T2 relaxation time is an important parameter for soft‐tissue contrast. The authors develop a new technique to estimate the integral of the distribution of T2 relaxation time without imposing any constraint other than the monotonicity of the underlying cumulative relaxation time distribution. They explore the properties of the estimation and its applications for the analysis of breast tissue data. As they show, an extension of linear discriminant analysis is found to distinguish well between two classes of breast tissue.  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