全文获取类型
收费全文 | 1074篇 |
免费 | 16篇 |
专业分类
管理学 | 229篇 |
民族学 | 8篇 |
人口学 | 64篇 |
丛书文集 | 7篇 |
理论方法论 | 104篇 |
综合类 | 10篇 |
社会学 | 524篇 |
统计学 | 144篇 |
出版年
2023年 | 7篇 |
2021年 | 7篇 |
2020年 | 15篇 |
2019年 | 20篇 |
2018年 | 14篇 |
2017年 | 24篇 |
2016年 | 20篇 |
2015年 | 21篇 |
2014年 | 36篇 |
2013年 | 220篇 |
2012年 | 42篇 |
2011年 | 38篇 |
2010年 | 37篇 |
2009年 | 24篇 |
2008年 | 31篇 |
2007年 | 20篇 |
2006年 | 34篇 |
2005年 | 36篇 |
2004年 | 22篇 |
2003年 | 18篇 |
2002年 | 33篇 |
2001年 | 24篇 |
2000年 | 18篇 |
1999年 | 16篇 |
1998年 | 17篇 |
1997年 | 11篇 |
1996年 | 14篇 |
1995年 | 11篇 |
1994年 | 17篇 |
1993年 | 17篇 |
1992年 | 8篇 |
1991年 | 12篇 |
1990年 | 11篇 |
1988年 | 11篇 |
1987年 | 13篇 |
1986年 | 11篇 |
1985年 | 7篇 |
1984年 | 8篇 |
1983年 | 12篇 |
1982年 | 10篇 |
1981年 | 11篇 |
1980年 | 14篇 |
1979年 | 13篇 |
1978年 | 8篇 |
1977年 | 7篇 |
1976年 | 14篇 |
1975年 | 16篇 |
1974年 | 7篇 |
1973年 | 6篇 |
1972年 | 6篇 |
排序方式: 共有1090条查询结果,搜索用时 0 毫秒
101.
This paper deals with the construction of the life table. A discussion of basic facts about the life table is followed by the proposal of a nonstationary, autoregressive model for the life table. The moment structure of the nonstationary, autoregressive model is developed. Some estimation procedures are proposed followed by several examples. 相似文献
102.
The problem of selection of the best multivariate population is given a new formulation which does not involve reducing the populations to univariate quantities. This formulation's solution is developed for known, and (using the Heteroscedastic Method) also for unknown, variance-covariance matrices. Preference reversals and arbitrary nonlinear preference functions are explicitly allowed in this new theory 相似文献
103.
Edward P. Markowski 《统计学通讯:理论与方法》2013,42(15):1915-1918
An expression is presented for the mean of a linear signed rank statistic for the one sample location model. Several examples are given to illustrate its application. 相似文献
104.
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
105.
A simultaneous test for the location and scale parameters of the Cauchy distribution is considered based on selected order statistics.. It is shown that optimum spacings that maximise the Pitman ARE of the test coincide with that of the optimum spacings for the estimation problem. 相似文献
106.
This paper presents an asymptotic equivalence result with a sharp rate of convergence forthe sample median and the Harrell-Davis median estimator. The consequences of this result are discussed. 相似文献
107.
Nonparametric tests for the null hypothesis of no treatment effect in the mixed-model experiment which involves n randomly chosen subjects who respond once to each of ρ distinct treatments have been developed by Koch and Sen (1968), These tests were based on the assumption of compound symmetry of the error vectors and on the weaker assumption of diagonal symmetry of the error vectors. This paper considers an alternative (permutationally) distribution-free test under this latter assumption. The new test follows the same type of distribution theory as those in Koch and Sen, but utilizes the inherent invariance structure in a more visable and direct way. 相似文献
108.
Recent studies have found size of territorial units to vary inversely with population density, the only exception to this regularity being Great Britain, where size and density were found to be unrelated. The present research accounts for this anomaly by demonstrating Britain's historical conformity to the size-density relation. The size-density hypothesis is further supported by direct test, made possible by a recent reorganization of british counties. Results show that reorganization has restored the expected inverse relation between size and density and has restructured the size and density of counties in a manner precisely specified by underlying theory. 相似文献
109.
Edward L. Korn 《The American statistician》2013,67(1):61-62
Pearson's partial correlation, Kendall's partial tau, and a partial correlation based on Spearman's rho need not be consistent estimators of zero under conditional independence. The ranges of possible limiting values of these correlations are computed under multivariate normality and lognormality. Students should exercise caution when interpreting these partial correlations as a measure of conditional independence. 相似文献
110.
Kevin Constante Michael I. Demidenko Edward D. Huntley Deborah Rivas-Drake Daniel P. Keating Adriene M. Beltz 《Journal of research on adolescence》2023,33(1):24-42
This study examined how ethnic identity relates to large-scale brain networks implicated in social interactions, social cognition, self-definition, and cognitive control. Group Iterative Multiple Model Estimation (GIMME) was used to create sparse, person-specific networks among the default mode and frontoparietal resting-state networks in a diverse sample of 104 youths aged 17–21. Links between neural density (i.e., number of connections within and between these networks) and ethnic identity exploration and resolution were evaluated in the full sample. Ethnic identity resolution was positively related to frontoparietal network density, suggesting that having clarity about one’s ethnic group membership is associated with brain network organization reflecting cognitive control. These findings help fill a critical knowledge gap about the neural underpinnings of ethnic identity. 相似文献