全文获取类型
收费全文 | 3207篇 |
免费 | 63篇 |
国内免费 | 1篇 |
专业分类
管理学 | 487篇 |
民族学 | 15篇 |
人才学 | 1篇 |
人口学 | 249篇 |
丛书文集 | 25篇 |
理论方法论 | 343篇 |
综合类 | 23篇 |
社会学 | 1725篇 |
统计学 | 403篇 |
出版年
2023年 | 18篇 |
2021年 | 12篇 |
2020年 | 36篇 |
2019年 | 54篇 |
2018年 | 68篇 |
2017年 | 79篇 |
2016年 | 78篇 |
2015年 | 52篇 |
2014年 | 68篇 |
2013年 | 544篇 |
2012年 | 95篇 |
2011年 | 84篇 |
2010年 | 77篇 |
2009年 | 83篇 |
2008年 | 98篇 |
2007年 | 100篇 |
2006年 | 100篇 |
2005年 | 103篇 |
2004年 | 101篇 |
2003年 | 102篇 |
2002年 | 110篇 |
2001年 | 61篇 |
2000年 | 54篇 |
1999年 | 65篇 |
1998年 | 53篇 |
1997年 | 64篇 |
1996年 | 73篇 |
1995年 | 44篇 |
1994年 | 49篇 |
1993年 | 50篇 |
1992年 | 45篇 |
1991年 | 52篇 |
1990年 | 48篇 |
1989年 | 37篇 |
1988年 | 32篇 |
1987年 | 33篇 |
1986年 | 23篇 |
1985年 | 26篇 |
1984年 | 42篇 |
1983年 | 39篇 |
1982年 | 35篇 |
1981年 | 46篇 |
1980年 | 31篇 |
1979年 | 25篇 |
1978年 | 23篇 |
1977年 | 30篇 |
1976年 | 29篇 |
1975年 | 17篇 |
1974年 | 11篇 |
1973年 | 21篇 |
排序方式: 共有3271条查询结果,搜索用时 0 毫秒
101.
This qualitative study examines the narratives of seven heterosexual, cisgender individuals who identify both as persons of color and as positively disposed toward LGB and transgender-identified persons. Using psycho-discursive qualitative methodology, the authors will present the narrative strategies taken up by these positively disposed cisgender heterosexuals of color as they attempt to position themselves as supportive of LGB and transgender persons while negotiating the discourse of heteronormativity. The three narrative strategies have been titled differentiation, empathy, and coherence. In addition to mapping the three narrative strategies, the authors also explore why informants may choose certain strategies over others and argue that the intersection of social identities must be considered when attempting to understand social oppression. Implications for the human services fields will be discussed. 相似文献
102.
Diversification gains in mean-variance efficiency derived from including real estate in financial asset portfolios are examined. Optimal financial and mixed-asset portfolios were generated by selecting from an investment universe including several distinct financial and real estate media. Deficiencies of previous studies were overcome by employing data with improved representativeness and comparability. The efficient mixed-asset portfolios dominated the efficient financial asset portfolios implying that purely financial asset diversification is inefficient. The optimal mixed-asset portfolio prescribed that approximately two-thirds of the investment wealth be allocated to real estate and one-third to the financial media. 相似文献
103.
Richard Bramwell 《Identities: Global Studies in Culture and Power》2018,25(4):475-492
This paper examines the construction of prisoners’ identity through rap in England’s high security prisons. While hip hop studies has often addressed rap’s connection to the social practices of criminalized youths, prison rap cultures have received scant attention. This paper draws on a series of rap workshops and interviews with prisoners to investigate the experiences of black prisoners in high security prisons and how identities are produced and negotiated through rap. Rap is associated with the production of a range of identities and identifications, enabling prisoners to accommodate themselves to the conditions of their incarceration and to challenge aspects of the criminal justice system that they experience as unfair or illegitimate. 相似文献
104.
Philippe Jean-Luc Gradidge Shane A. Norris Richard Munthali Nigel J. Crowther 《European review of aging and physical activity》2018,15(1):6
Background
The increasing prevalence of obesity in sub-Saharan African women is not well understood, and black South African women in the region are particularly vulnerable. This study aimed to examine whether the relationship of socioeconomic status (SES) with changes in body mass index (BMI) and waist circumference (WC) is mediated by physical activity in ageing African women.Methods
In a longitudinal analysis of the 518 caregivers associated with the Birth to Twenty Plus study, the role of SES associated with 10-year changes in BMI and WC was tested using structural equation modelling (SEM). The degree of mediation of moderate-vigorous physical activity (MVPA) and sitting time in this association was also assessed.Results
The prevalence of obesity increased significantly from baseline to follow-up (p?<?0.0001). In the SEM models, baseline SES had a direct positive effect on changes in BMI (β, 95% CI, 0.02 (0.005 to 0.04), and a direct negative effect on changes in MVPA (β, 95% CI, ??3.81 (??6.92 to ??0.70). Baseline MVPA had a direct negative effect (β, 95% CI, ??0.002 (??0.003 to ??0.0003) and indirect positive effect via change in MVPA (β, 95% CI, 0.01 (0.0001 to 0.001) on change in WC.Conclusions
Our study demonstrates the role and interaction of sociodemographic and behavioural predictors of obesity, and suggests a multifaceted approach to management of the crisis in communities of ageing urban African women.105.
ABSTRACTThis paper develops tests of the null hypothesis of linearity in the context of autoregressive models with Markov-switching means and variances. These tests are robust to the identification failures that plague conventional likelihood-based inference methods. The approach exploits the moments of normal mixtures implied by the regime-switching process and uses Monte Carlo test techniques to deal with the presence of an autoregressive component in the model specification. The proposed tests have very respectable power in comparison with the optimal tests for Markov-switching parameters of Carrasco et al. (2014), and they are also quite attractive owing to their computational simplicity. The new tests are illustrated with an empirical application to an autoregressive model of USA output growth. 相似文献
106.
107.
108.
Margarita Frederico Associate Professor Maureen Long Patricia McNamara Lynne McPherson Richard Rose Associate Professor 《Child & Family Social Work》2017,22(2):1064-1074
How best to support children and young people in foster care remains a challenge for child welfare. There has been little Australian research on the outcomes for children and young people placed in therapeutic foster care (TFC). This article aims to address this knowledge gap, presenting the evaluation of a state‐wide model of TFC known as the Circle Program operating in Victoria, Australia. Data sources for the study were case assessment analysis; surveys of foster carers, program workers and other stakeholders in the sector; and both focus groups and individual interviews with foster care workers. The evaluation found that the Circle Program lessened the number of unplanned exits of children from foster placements compared with generalist foster care. Another important finding was that the Circle Program positively influenced foster carers' decisions to stay in the carer role. Key components perceived as contributing to outcomes of the Circle Program included enhanced training of foster carers, intensive carer support, specialist therapeutic support to the child and carer, therapeutic service to family members and a network of services to provide support to the child. 相似文献
109.
Heather A. Davis Elizabeth N. Riley Gregory T. Smith Richard Milich Jessica L. Burris 《Journal of American college health : J of ACH》2017,65(2):112-121
Objective: To help clarify the effect of gender on the bidirectional relationship between alcohol use and strenuous physical activity in college students. Participants: Five hundred twenty-four (52% female) college students recruited in August 2008 and 2009 and followed up in April 2009 and April 2011, respectively. Methods: Participants reported their alcohol use and strenuous physical activity on 2 occasions (baseline and follow-up) spaced approximately 1 or 2 years apart. Results: For females, alcohol use quantity at baseline was associated with increased strenuous physical activity at 1- and 2-year follow-ups, and alcohol use frequency at baseline was associated with decreased strenuous physical activity at 2-year follow-up. For males, alcohol use frequency at baseline predicted decreased strenuous physical activity at 1-year follow-up. Conclusions: Gender differences may be explained from an eating disorders perspective such that women use physical activity as a compensatory strategy to combat potential weight gain from calories consumed during alcohol use. 相似文献
110.
Richard Woods 《Disability & Society》2017,32(7):1090-1095
Levitt argues that the social model of disability needs to be re-invigorated, potentially by adapting the tool for separate countries. The social model has been successfully applied for some disabled groups in the United Kingdom. However, the social model is not implemented for neurodivergent labels such as autism, through the negative language of autism, causing severe problems for autistic individuals’ daily lives. The social model can be re-invigorated for autism, removing social barriers by changing non-autistic people’s attitudes towards autism through ensuring positive language of autism, preventing the categorisation of autism and fully enacting The Autism Act 2009 and The Equality Act 2010. 相似文献