全文获取类型
收费全文 | 2589篇 |
免费 | 53篇 |
专业分类
管理学 | 417篇 |
民族学 | 21篇 |
人才学 | 1篇 |
人口学 | 213篇 |
丛书文集 | 23篇 |
理论方法论 | 219篇 |
综合类 | 24篇 |
社会学 | 1372篇 |
统计学 | 352篇 |
出版年
2021年 | 13篇 |
2020年 | 26篇 |
2019年 | 31篇 |
2018年 | 52篇 |
2017年 | 66篇 |
2016年 | 55篇 |
2015年 | 34篇 |
2014年 | 53篇 |
2013年 | 487篇 |
2012年 | 60篇 |
2011年 | 88篇 |
2010年 | 68篇 |
2009年 | 61篇 |
2008年 | 64篇 |
2007年 | 87篇 |
2006年 | 56篇 |
2005年 | 68篇 |
2004年 | 61篇 |
2003年 | 63篇 |
2002年 | 56篇 |
2001年 | 44篇 |
2000年 | 43篇 |
1999年 | 39篇 |
1998年 | 50篇 |
1997年 | 55篇 |
1996年 | 49篇 |
1995年 | 51篇 |
1994年 | 39篇 |
1993年 | 48篇 |
1992年 | 46篇 |
1991年 | 45篇 |
1990年 | 41篇 |
1989年 | 31篇 |
1988年 | 30篇 |
1987年 | 35篇 |
1986年 | 26篇 |
1985年 | 32篇 |
1984年 | 32篇 |
1983年 | 39篇 |
1982年 | 33篇 |
1981年 | 30篇 |
1980年 | 29篇 |
1979年 | 26篇 |
1978年 | 34篇 |
1977年 | 17篇 |
1976年 | 25篇 |
1975年 | 20篇 |
1974年 | 25篇 |
1973年 | 10篇 |
1971年 | 11篇 |
排序方式: 共有2642条查询结果,搜索用时 31 毫秒
131.
Representations are obtained for the probabilities that a Strict Borda Paradox and a Strong Borda Paradox are observed for
large electorates with three candidates under the standard assumptions of Impartial Culture and Impartial Anonymous Culture.
These representations are obtained for general weighted scoring rules (WSRs), and the probabilities are found to be maximized
for voting rules like plurality rule and negative plurality rule. It is found that these paradox probabilities are not reduced
for every scoring rule with the introduction of some degree of dependence among voters’ preferences with IAC. It is concluded
that actual observances of a Strict Borda Paradox should be extremely rare, and that while observances of a Strong Borda Paradox
should also be rare, they might occasionally be witnessed. 相似文献
132.
Abstract The most important issue which surrounds attitude theory today is the so called “consistency issue.” It is an issue which focuses on the failure of attitude theory and research to demonstrate the kind of causal relationship between attitudes and behavior which has been traditionally asserted in the logical underpinnings of that theory. For some time, the critics of attitude theory and research have suggested that the inconsistency between attitudes and acts would not be reduced until attitudes were rooted in the social process within which human behavior occurs. This criticism has been responded to by contemporary attitude specialists who have made notable modifications in theory and research to take account of social variables which influence the assumed relationship between attitudes and behavior. However, some of the criticisms of attitude theory have gone beyond pointing out the lack of a “socialized” conception of the problem to attack the logical underpinnings of the entire enterprise. While this paper is not a renewal of these criticisms of attitude theory, it is an attempt to identify and explicate a conception of attitudes which is a true sociological alternative to more traditional psychological conceptions. 相似文献
133.
134.
135.
One of the difficulties in evaluating leadership development is measuring whether and how people change over the time period of the leadership development initiative. Even when change over time is an inherent part of the design and evaluation of leadership development, events may occur outside of the control of evaluators that limit the effectiveness of adequately and accurately assessing change over time. With data from a leadership development initiative designed to account for change over time, this article suggests hierarchical linear modeling (HLM) as a multilevel methodological technique to assess change over time in a leadership development context. This article will use real change over time data from a leadership development initiative and discuss the logic and rationale of HLM. We use HLM as an example of a multilevel methodological tool to investigate typical change over time questions in leadership development evaluation. 相似文献
136.
We model the performance of DMUs (decision-making units) using a two-stage network model. In the first stage of production DMUs use inputs to produce an intermediate output that becomes an input to a second stage where final outputs are produced. Previous black box DEA models allowed for non-radial scaling of outputs and inputs and accounted for slacks in the constraints that define the technology. We extend these models and build a performance measure that accounts for a network structure of production. We use our method to estimate the performance of Japanese banks, which use labor, physical capital, and financial equity capital in a first stage to produce an intermediate output of deposits. In the second stage, those deposits become an input in the production of loans and securities investments. The network estimates reveal greater bank inefficiency than do the estimates that treat the bank production process as a black box with all production taking place in a single stage. 相似文献
137.
This study compared the socioeconomic status, racial composition, and ethnic composition of 49 randomly selected U.S. cities with those of the census tracts containing the solid waste disposal facilities and sewage treatment plants for those cities. Contrary to the environmental racism and classism hypotheses, residents of tracts with landfills or incinerators had higher incomes and were less likely to be minority group members than residents of the cities that generated the refuse—although they did have somewhat lower education levels. There were few differences between the population characteristics of the cities and the census tracts that contained their sewage treatment plants. Possible explanations for these findings are discussed. 相似文献
138.
139.
William C. Guenther 《The American statistician》2013,67(3):120-121
An elementary method of proof of the mode, median, and mean inequality is given for skewed, unimodal distributions of continuous random variables. A proof of the inequality for the gamma, F, and beta random variables is sketched. 相似文献
140.