全文获取类型
收费全文 | 3087篇 |
免费 | 72篇 |
专业分类
管理学 | 548篇 |
民族学 | 25篇 |
人才学 | 4篇 |
人口学 | 210篇 |
丛书文集 | 18篇 |
理论方法论 | 341篇 |
综合类 | 22篇 |
社会学 | 1516篇 |
统计学 | 475篇 |
出版年
2023年 | 23篇 |
2022年 | 12篇 |
2021年 | 15篇 |
2020年 | 57篇 |
2019年 | 89篇 |
2018年 | 77篇 |
2017年 | 101篇 |
2016年 | 90篇 |
2015年 | 74篇 |
2014年 | 84篇 |
2013年 | 489篇 |
2012年 | 111篇 |
2011年 | 91篇 |
2010年 | 92篇 |
2009年 | 90篇 |
2008年 | 109篇 |
2007年 | 88篇 |
2006年 | 104篇 |
2005年 | 126篇 |
2004年 | 84篇 |
2003年 | 92篇 |
2002年 | 88篇 |
2001年 | 70篇 |
2000年 | 50篇 |
1999年 | 60篇 |
1998年 | 53篇 |
1997年 | 33篇 |
1996年 | 33篇 |
1995年 | 27篇 |
1994年 | 50篇 |
1993年 | 45篇 |
1992年 | 36篇 |
1991年 | 44篇 |
1990年 | 39篇 |
1989年 | 33篇 |
1988年 | 34篇 |
1987年 | 34篇 |
1986年 | 24篇 |
1985年 | 42篇 |
1984年 | 38篇 |
1983年 | 28篇 |
1982年 | 30篇 |
1981年 | 19篇 |
1980年 | 14篇 |
1979年 | 13篇 |
1978年 | 16篇 |
1977年 | 16篇 |
1976年 | 15篇 |
1975年 | 12篇 |
1974年 | 16篇 |
排序方式: 共有3159条查询结果,搜索用时 15 毫秒
71.
Paul R. Smokowski Caroline B. R. Evans Heather Wing Meredith Bower Martica Bacallao James Barbee 《Child and Adolescent Social Work Journal》2018,35(2):127-138
The Youth Court in Schools Project was implemented in two low-income, violent, racially/ethnically diverse rural counties. This study examined if the presence of Youth Court impacted students’ perceptions of school danger, individual functioning, and interpersonal relationships. Data were gathered from 3454 youth; following multiple imputation, data were analyzed using paired samples t tests. Results indicated that perceptions of school danger increased significantly and self-esteem decreased significantly in the control schools pretest to posttest. Violent behavior, anxiety, friend rejection, and bullying victimization decreased significantly in the Youth Court intervention schools pretest to posttest, but did not change significantly in the control schools. Findings provide preliminary evidence that Youth Court is an effective way of improving school climate, individual functioning, and interpersonal relationships. 相似文献
72.
Gemma Sicouri Lucy Tully Daniel Collins Matthew Burn Kristina Sargeant Paul Frick Vicki Anderson David Hawes Eva Kimonis Caroline Moul Roshel Lenroot Mark Dadds 《Australian and New Zealand Journal of Family Therapy》2018,39(2):218-231
Levels of father participation in parenting interventions are often very low, yet little is known about the factors which influence father engagement. We aimed to qualitatively explore perceived barriers to, and preferences for, parenting interventions in a community sample of fathers. Forty‐one fathers across nine focus groups were interviewed using a semi‐structured interview. Data were analysed using inductive thematic analysis. Key barriers to father participation identified included: the perception that interventions are mother‐focused; beliefs about gender roles regarding parenting and help‐seeking; mothers’ role as ‘gatekeeper’; lack of knowledge and awareness of parenting interventions; and lack of relevance of interventions. Fathers reported preferences for specific content and intervention features, facilitator characteristics, practical factors, and highlighted the need for father‐targeted recruitment and advertising. Many of the barriers and preferences identified are consistent with previous research; however, fathers’ beliefs and attitudes around gender roles and help‐seeking, as well as the perception that interventions are predominantly mother‐focused, may be key barriers for community fathers. Strategies to overcome these barriers and better meet the needs of fathers in promoting and delivering parenting interventions are discussed. 相似文献
73.
74.
For capture–recapture models when covariates are subject to measurement errors and missing data, a set of estimating equations is constructed to estimate population size and relevant parameters. These estimating equations can be solved by an algorithm similar to the EM algorithm. The proposed method is also applicable to the situation when covariates with no measurement errors have missing data. Simulation studies are used to assess the performance of the proposed estimator. The estimator is also applied to a capture–recapture experiment on the bird species Prinia flaviventris in Hong Kong. The Canadian Journal of Statistics 37: 645–658; 2009 © 2009 Statistical Society of Canada 相似文献
75.
Goele Massonnet Paul Janssen Luc Duchateau 《Journal of statistical planning and inference》2009,139(11):3865
We study copula models for correlated infection times in the four udder quarters of dairy cows. Both a semi-parametric and a nonparametric approach are considered to estimate the marginal survival functions, taking into account the effect of a binary udder quarter level covariate. We use a two-stage estimation approach and we briefly discuss the asymptotic behaviour of the estimators obtained in the first and the second stage of the estimation. A pseudo-likelihood ratio test is used to select an appropriate copula from the power variance copula family that describes the association between the outcomes in a cluster. We propose a new bootstrap algorithm to obtain the p-value for this test. This bootstrap algorithm also provides estimates for the standard errors of the estimated parameters in the copula. The proposed methods are applied to the udder infection data. A small simulation study for a setting similar to the setting of the udder infection data gives evidence that the proposed method provides a valid approach to select an appropriate copula within the power variance copula family. 相似文献
76.
Gallo P 《Pharmaceutical statistics》2006,5(2):119-124
Implementation of adaptive clinical trial designs raises challenges with regard to the processes by which accruing trial data is analyzed, reviewed, and acted upon. In line with current monitoring conventions, it should be viewed that inappropriate knowledge of interim results can raise concerns regarding maintaining trial integrity and interpretability of results. Here we discuss issues related to these processes in adaptive trials, and point out distinctions versus other more familiar monitoring situations. One topic involves the composition of the group of individuals who will have access to interim results in order to recommend adaptations. We discuss operational models for data review by this group; one question addressed is whether in adaptive trials a role in this process for a representative of the study sponsor could at times be warranted, and might be justified if adequate protections are in place. Another issue involves whether adaptations made based upon interim data can convey to observers an amount of information about the results, which could rise to a level of concern. We consider whether different types of adaptations might be more or less problematic with regard to this issue, and recommend steps that might be considered to mitigate this concern. 相似文献
77.
78.
Paul Stronge 《The Sociological review》2009,57(2):240-261
The paper posits an intervention in current debates around 'method making' in the social sciences, drawing on the experience of undertaking an ethnographic study of a community mental health team in East London. Theoretical recourse is made to the process philosophy of A.N. Whitehead and to the enduring provenance of the problem of 'suggestion' in the history of medicine and psychology. These offer rich and provocative theoretical resources with which to rethink the interpenetration of subject and object and 'feeling' and 'finding'. Whitehead's work provides a general philosophical framework whereby the ongoing subjective experience of the researcher can no longer be sharply demarcated from the 'data' encountered. Meanwhile the adoption of a 'register of suggestion' opens up insights into the inevitably selective and singular character of any given methodological procedure. It maintains the importance of affective factors at the forefront of analysis, and brings into focus the parts played by indeterminacy and risk in the research event. 相似文献
79.
Paul W. Miller 《Journal of Labor Research》2009,30(1):52-74
Analyses of data from the 2000 US Census show that the gender pay gap differs by sector of employment and according to the
part of the earnings distribution that is considered. The gender pay differential in the private sector in the US does not
display either the glass ceiling or sticky floor effects that have been reported for many other countries. The government
sector is, however, characterized by a distinct sticky floor effect in the female–male pay differential. Regardless of the
sector of employment, females have lower hourly rates of pay than men across the entire earnings distribution.
相似文献
Paul W. MillerEmail: |
80.
Infants' Processing of Featural and Configural Information in the Upper and Lower Halves of the Face
Three‐ to 4‐month‐old and 6‐ to 7‐month‐old infants were administered an infant version of the Face Dimensions Test that has been used with adults (e.g., Bukach, Le Grand, Kaiser, Bub, & Tanaka, 2008). Infants were familiarized with a photograph of a woman's face and then tested with the familiar face paired with a face differing in the (a) distance separating the eyes (a configural/eyes change), (b) distance between the nose and mouth (configural/mouth change), (c) size of the eyes (featural/eyes change), and (d) size of the mouth (featural/mouth change). Infants were shown to be more sensitive to (a) configural than featural change, and (b) change around the eyes versus the mouth. Implications for the development of face processing are discussed. 相似文献