全文获取类型
收费全文 | 6804篇 |
免费 | 231篇 |
专业分类
管理学 | 897篇 |
民族学 | 33篇 |
人口学 | 689篇 |
丛书文集 | 31篇 |
教育普及 | 1篇 |
理论方法论 | 680篇 |
综合类 | 66篇 |
社会学 | 3376篇 |
统计学 | 1262篇 |
出版年
2023年 | 40篇 |
2021年 | 62篇 |
2020年 | 109篇 |
2019年 | 169篇 |
2018年 | 183篇 |
2017年 | 269篇 |
2016年 | 198篇 |
2015年 | 118篇 |
2014年 | 181篇 |
2013年 | 1087篇 |
2012年 | 224篇 |
2011年 | 212篇 |
2010年 | 170篇 |
2009年 | 158篇 |
2008年 | 189篇 |
2007年 | 176篇 |
2006年 | 198篇 |
2005年 | 147篇 |
2004年 | 160篇 |
2003年 | 119篇 |
2002年 | 145篇 |
2001年 | 168篇 |
2000年 | 158篇 |
1999年 | 166篇 |
1998年 | 129篇 |
1997年 | 115篇 |
1996年 | 127篇 |
1995年 | 89篇 |
1994年 | 87篇 |
1993年 | 108篇 |
1992年 | 113篇 |
1991年 | 123篇 |
1990年 | 102篇 |
1989年 | 93篇 |
1988年 | 78篇 |
1987年 | 78篇 |
1986年 | 75篇 |
1985年 | 98篇 |
1984年 | 86篇 |
1983年 | 84篇 |
1982年 | 62篇 |
1981年 | 47篇 |
1980年 | 52篇 |
1979年 | 59篇 |
1978年 | 45篇 |
1977年 | 42篇 |
1976年 | 44篇 |
1975年 | 35篇 |
1974年 | 48篇 |
1973年 | 34篇 |
排序方式: 共有7035条查询结果,搜索用时 0 毫秒
21.
22.
23.
Ramesh Raghavan Arleen A. Leibowitz Ronald M. Andersen Bonnie T. Zima Mark A. Schuster John Landsverk 《Children and youth services review》2006,28(12):1482-1496
Children in the child welfare system are dependent upon Medicaid to finance services for their considerable mental health needs. This study examines the effects of Medicaid policies on mental health service use among a national probability sample of children in the child welfare system. Data for this study came from the National Survey of Child and Adolescent Well-Being, the Caring for Children in Child Welfare study, and the Area Resource File. Weighted multivariate logistic regression analyses were conducted to estimate effects of policy variables on children's use of mental health services, controlling for child-level covariates and county-level health resources. Children in counties with behavioral carve-outs under Medicaid managed care had lower odds of inpatient mental health service use. Medicaid managed care enrollment and variations in type of provider reimbursement did not affect use of mental health services. Older age, greater need for mental health services, and higher levels of caregiver education were associated with increased odds of service use. Restrictions on use of inpatient mental healthcare caused by behavioral carve-outs may disproportionately affect children in the child welfare system who have high rates of such use. Careful adoption of carve-outs is necessary to assure appropriate care for these children. 相似文献
24.
25.
Higher education outcomes, graduate employment and university performance indicators 总被引:1,自引:0,他引:1
Massimiliano Bratti Abigail McKnight Robin Naylor Jeremy Smith 《Journal of the Royal Statistical Society. Series A, (Statistics in Society)》2004,167(3):475-496
Summary. Official employment-related performance indicators in UK higher education are based on the population of students responding to the 'First destination supplement' (FDS). This generates potentially biased performance indicators as this population of students is not necessarily representative of the full population of leavers from each institution. University leavers who do not obtain qualifications and those who do not respond to the FDS are not included within the official analysis. We compare an employment-related performance indicator based on those students who responded to the FDS with alternative approaches which address the potential non-random nature of this subgroup of university leavers. 相似文献
26.
While shows like The X-Files and 24 have merged conspiracy theories with popular science (fictions), some video games have been pushing the narrative even further. Electronic Art's Majestic game was released in July 2001 and quickly generated media buzz with its unusual multi-modal gameplay. Mixing phone calls, faxes, instant messaging, real and "fake' websites, and email, the game provides a fascinating case of an attempt at new directions for gaming communities. Through story, mode of playing, and use of technology, Majestic highlights the uncertain status of knowledge, community and self in a digital age; at the same time, it allows examination of alternative ways of understanding games' role and purpose in the larger culture. Drawing on intricate storylines involving government conspiracies, techno-bio warfare, murder and global terror, players were asked to solve mysteries in the hopes of preventing a devastating future of domination. Because the game drew in both actual and Majestic-owned/-designed websites, it constantly pushed those playing the game right to borders where simulation collides with " factuality'. Given the wide variety of "legitimate' conspiracy theory, alien encounters and alternative science web pages, users often could not distinguish when they were leaving the game's pages and venturing into " real' World Wide Web sites. Its further use of AOL's instant messenger system, in which gamers spoke not only to bots but to other players, pushed users to evaluate constantly both the status of those they were talking to and the information being provided. Additionally, the game required players to occupy unfamiliar subject positions, ones where agency was attenuated, and which subsequently generated a multi-layered sense of unease among players. This mix of authentic and staged information in conjunction with technologically mediated roles highlights what are often seen as phenomenon endemic to the Internet itself; that is, the destabilization of categories of knowing, relating, and being. 相似文献
27.
28.
Asian and White middle school children were shown photographs of unknown Afro-Caribbean, Asian, and White individuals of approximately the same age as themselves, and asked which one wax most like them, which one they would prefer to be, which ones they would prefer to engage in various activities with, and finally, to allocate positive and negative traits to the three groups or to nobody. A similar majority of both Asian and While children selected an own-race photograph as being most like them, but only about a half selected the own-race photograph as the one they would most like to he. For sharing activities, children showed a strong own-tender preference, followed by an own-race preference. White children stated a greater preference for sharing activities with White children, then with Afro-Caribbean children, and least with Asian children. Asian children preferred Asian and White children the most, Afro-Caribbean the least. On a stereotypes test, similar trends were obtained; White children evaluated While children highest and Asian lowest; Asian children tended to evaluate Asian children highest but to a nonsignificant extent. The relative proportion of Asian/White children in school appeared to have little systematic influence on the results, thus arguing against the contact hypothesis of prejudice reduction in its simple form. 相似文献
29.
Michael T. Maly 《Sociological inquiry》1992,62(3):375-382
This study is a replication of a recent assessment of the relationship between social class and self-esteem, and the variables that intervene on this relationship. The purpose is to replicate the methods used to explore further this relationship by attempting to replicate the findings reported by Demo and Savin-Williams (1983) in another population. Only one of the four hypotheses tested received support thereby indirectly supporting the null relationship theory of no relationship between socioeconomic status and self-esteem. Implications of the findings also are addressed. 相似文献
30.
TESTAMENTARY BEHAVIOR: 总被引:1,自引:0,他引:1
T.P. Schwartz 《The Sociological quarterly》1993,34(2):337-355
Content analysis and qualitative analysis of all 319 last wills that were filed in Providence Probate Court, 1985, revealed that about ten percent of the testators used testamentary material, disinheritance or altruism to express their individuality. About 42 percent of the wills were personalized directly in other ways. Forty-eight percent displayed indirect influences of family, friends and community. Less that ten percent displayed primary influences of attorneys, banks, nursing homes, governments, religions or other organizations. In the light of these findings, while none of the three major theoretical positions on testamentary behavior prevails, the individualist position is manifested more often than is the family-community position. Both of these positions are manifested much more often than is the legalist position.
These findings are related to the work of Emile Durkheim and to contemporary sociological theories of the family, community and law. 相似文献
These findings are related to the work of Emile Durkheim and to contemporary sociological theories of the family, community and law. 相似文献