全文获取类型
收费全文 | 8813篇 |
免费 | 230篇 |
国内免费 | 1篇 |
专业分类
管理学 | 1186篇 |
民族学 | 50篇 |
人口学 | 883篇 |
丛书文集 | 44篇 |
理论方法论 | 791篇 |
现状及发展 | 1篇 |
综合类 | 102篇 |
社会学 | 4390篇 |
统计学 | 1597篇 |
出版年
2023年 | 52篇 |
2021年 | 55篇 |
2020年 | 128篇 |
2019年 | 180篇 |
2018年 | 218篇 |
2017年 | 302篇 |
2016年 | 223篇 |
2015年 | 162篇 |
2014年 | 195篇 |
2013年 | 1588篇 |
2012年 | 280篇 |
2011年 | 270篇 |
2010年 | 180篇 |
2009年 | 170篇 |
2008年 | 209篇 |
2007年 | 179篇 |
2006年 | 210篇 |
2005年 | 184篇 |
2004年 | 179篇 |
2003年 | 165篇 |
2002年 | 191篇 |
2001年 | 196篇 |
2000年 | 194篇 |
1999年 | 196篇 |
1998年 | 157篇 |
1997年 | 144篇 |
1996年 | 145篇 |
1995年 | 134篇 |
1994年 | 124篇 |
1993年 | 120篇 |
1992年 | 126篇 |
1991年 | 145篇 |
1990年 | 143篇 |
1989年 | 157篇 |
1988年 | 96篇 |
1987年 | 121篇 |
1986年 | 101篇 |
1985年 | 132篇 |
1984年 | 106篇 |
1983年 | 115篇 |
1982年 | 94篇 |
1981年 | 95篇 |
1980年 | 88篇 |
1979年 | 92篇 |
1978年 | 92篇 |
1977年 | 64篇 |
1976年 | 77篇 |
1975年 | 69篇 |
1974年 | 63篇 |
1973年 | 48篇 |
排序方式: 共有9044条查询结果,搜索用时 234 毫秒
371.
Lauren B. Day Jan Faust Ryan A. Black Deborah O. Day Anita Alexander 《Journal of Child Custody》2017,14(2-3):191-208
Factitious Disorder Imposed by Another (FDIA) can be difficult to expeditiously identify. Understanding personality characteristics of FDIA perpetrators via psychological assessment may decrease the time between initial abuse and identification of FDIA. Personality characteristics of FDIA mother-perpetrators were examined through a comparative analysis of MMPI-2 profiles. It was predicted that mother-perpetrators would have significantly higher overall profile elevations on the MMPI-2 and elevations on specific clinical scales than a comparative control group. Results indicated that mother-perpetrators displayed significantly higher, elevations on the Psychasthenia (Pt) and Schizophrenia (Sc) scales and a trend toward significantly higher elevation on the Psychopathic Deviate (Pd) scale than the control group. These findings, along with the demographic information obtained, establish a preliminary foundation for understanding an overall profile of mother-perpetrators. 相似文献
372.
Michele C. McDonnall B. J. LeJeune Anne Carter Steverson 《Journal of social work in disability & rehabilitation》2017,16(1):1-13
A survey of state mental health agencies found that a majority have no specific policy or procedure regarding how to provide mental health services to persons who are deaf or who are deaf-blind. Agency representatives report that staff lack knowledge of how to provide mental health services to persons who are deaf-blind and the agencies lack qualified interpreters. They recommend training for social workers and counselors to address best practices in working with people who are deaf-blind concerning communication methods and strategies, physical interaction, cultural issues, everyday life, sensory deprivation, ethics, use of an interpreter, and other general issues. 相似文献
373.
374.
Anthony B. Atkinson Chrysa Leventi Brian Nolan Holly Sutherland Iva Tasseva 《Journal of Economic Inequality》2017,15(4):303-323
Atkinson’s book Inequality: What Can Be Done? (Harvard University Press, 2015) sets out a range of concrete proposals aimed at reducing income inequality, which cover a very broad span but include major changes to the income tax and social transfers system and the minimum wage. These are framed with specific reference to the UK but have much broader relevance in demonstrating how substantial the impact on inequality of such measures could be. This paper assesses the first-round effects of these tax, transfer and minimum wage reforms on income inequality and poverty based on a microsimulation approach using EUROMOD. The reforms involve a significantly more progressive income tax structure, a major increase in the minimum wage to the level which is estimated to represent the ‘Living Wage’, and alternative routes to reforming social transfers – either to strengthen the social insurance element or to restructure the entire system as a Participation Income (a variant of Basic/Citizen’s Income). The results show how the first-round effects of either set of tax and transfer proposals would be to substantially reduce the extent of income inequality and relative income poverty and the paper draws out how the two approaches differ in their effects. The additional impact of raising the minimum wage to the Living Wage is modest, reflecting in particular the position of beneficiaries in the household income distribution and the offsetting effects on household income of the withdrawal of means-tested cash transfers. 相似文献
375.
The methods of estimation of nonparametric regression function are quite common in statistical application. In this paper, the new Bayesian wavelet thresholding estimation is considered. The new mixture prior distributions for the estimation of nonparametric regression function by applying wavelet transformation are investigated. The reversible jump algorithm to obtain the appropriate prior distributions and value of thresholding is used. The performance of the proposed estimator is assessed with simulated data from well-known test functions by comparing the convergence rate of the proposed estimator with respect to another by evaluating the average mean square error and standard deviations. Finally by applying the developed method, density function of galaxy data is estimated. 相似文献
376.
André G. F. C. Costa Aline B. M. Vaz José Luiz P. Silva Leila D. Amorim 《Journal of applied statistics》2017,44(10):1827-1838
Clustered binary responses are often found in ecological studies. Data analysis may include modeling the marginal probability response. However, when the association is the main scientific focus, modeling the correlation structure between pairs of responses is the key part of the analysis. Second-order generalized estimating equations (GEE) are established in the literature. Some of them are more efficient in computational terms, especially facing large clusters. Alternating logistic regression (ALR) and orthogonalized residual (ORTH) GEE methods are presented and compared in this paper. Simulation results show a slightly superiority of ALR over ORTH. Marginal probabilities and odds ratios are also estimated and compared in a real ecological study involving a three-level hierarchical clustering. ALR and ORTH models are useful for modeling complex association structure with large cluster sizes. 相似文献
377.
M. B. M. B. K. Gawarammana 《统计学通讯:模拟与计算》2017,46(3):2103-2120
In this study, some methods suggested for binary repeated measures, namely, Weighted Least Squares (WLS), Generalized Estimating Equations (GEE), and Generalized Linear Mixed Models (GLMM) are compared with respect to power, type 1 error, and properties of estimates. The results indicate that with adequate sample size, no missing data, the only covariate being time effect, and a relatively limited number of time points, the WLS method performs well. The GEE approach performs well only for large sample sizes. The GLMM method is satisfactory with respect to type I error, but its estimates have poorer properties than the other methods. 相似文献
378.
A variable sample size (VSS) scheme directly monitoring the coefficient of variation (CV), instead of monitoring the transformed statistics, is proposed. Optimal chart parameters are computed based on two criteria: (i) minimizing the out-of-control ARL (ARL1) and (ii) minimizing the out-of-control ASS (ASS1). Then the performances are compared between these two criteria. The advantages of the proposed chart over the VSS chart based on the transformed statistics in the existing literature are: the former (i) provides an easier alternative as no transformation is involved and (ii) requires less number of observations to detect a shift when ASS1 is minimized. 相似文献
379.
Ahmed N. Albatineh Hafiz M. R. Khan Bashar Zogheib Golam B. M. Kibria 《统计学通讯:模拟与计算》2017,46(5):4018-4034
This article investigates the effects of number of clusters, cluster size, and correction for chance agreement on the distribution of two similarity indices, namely, Jaccard and Rand indices. Skewness and kurtosis are calculated for the two indices and their corrected forms then compared with those of the normal distribution. Three clustering algorithms are implemented: complete linkage, Ward, and K-means. Data were randomly generated from bivariate normal distributions with specified means and variance covariance matrices. Three-way ANOVA is performed to assess the significance of the design factors using skewness and kurtosis of the indices as responses. Test statistics for testing skewness and kurtosis and observed power are calculated. Simulation results showed that independent of the clustering algorithms or the similarity indices used, the interaction effect cluster size x number of clusters and the main effects of cluster size and number of clusters were found always significant for skewness and kurtosis. The three way interaction of cluster size x correction x number of clusters was significant for skewness of Rand and Jaccard indices using all clustering algorithms, but was not significant using Ward's method for both Rand and Jaccard indices, while significant for Jaccard only using complete linkage and K-means algorithms. The correction for chance agreement was significant for skewness and kurtosis using Rand and Jaccard indices when complete linkage method is used. Hence, such design factors must be taken into consideration when studying distribution of such indices. 相似文献
380.
Sherzod B. Akhundjanov 《统计学通讯:理论与方法》2017,46(10):4977-5000
In this article, we study exponentially weighted moving average (EWMA) control schemes to monitor the multivariate Poisson distribution with a general covariance structure, so that the practitioner can simultaneously monitor multiple correlated attribute processes more effectively. The statistical performance of the charts is assessed in terms of the run length properties and compared against other mainstream attribute control schemes. The application of the proposed methods to real-life and simulated datasets is demonstrated. 相似文献