全文获取类型
收费全文 | 699篇 |
免费 | 17篇 |
专业分类
管理学 | 121篇 |
民族学 | 4篇 |
人才学 | 1篇 |
人口学 | 49篇 |
丛书文集 | 5篇 |
理论方法论 | 69篇 |
综合类 | 1篇 |
社会学 | 353篇 |
统计学 | 113篇 |
出版年
2023年 | 5篇 |
2020年 | 10篇 |
2019年 | 9篇 |
2018年 | 15篇 |
2017年 | 13篇 |
2016年 | 10篇 |
2015年 | 8篇 |
2014年 | 20篇 |
2013年 | 109篇 |
2012年 | 19篇 |
2011年 | 21篇 |
2010年 | 22篇 |
2009年 | 12篇 |
2008年 | 22篇 |
2007年 | 21篇 |
2006年 | 17篇 |
2005年 | 15篇 |
2004年 | 14篇 |
2003年 | 16篇 |
2002年 | 24篇 |
2001年 | 19篇 |
2000年 | 16篇 |
1999年 | 18篇 |
1998年 | 13篇 |
1997年 | 10篇 |
1996年 | 10篇 |
1995年 | 12篇 |
1994年 | 15篇 |
1993年 | 13篇 |
1992年 | 13篇 |
1991年 | 22篇 |
1990年 | 6篇 |
1989年 | 9篇 |
1988年 | 10篇 |
1987年 | 10篇 |
1986年 | 5篇 |
1985年 | 11篇 |
1984年 | 7篇 |
1983年 | 10篇 |
1982年 | 9篇 |
1981年 | 9篇 |
1980年 | 5篇 |
1979年 | 8篇 |
1978年 | 6篇 |
1976年 | 8篇 |
1975年 | 10篇 |
1974年 | 4篇 |
1973年 | 5篇 |
1969年 | 3篇 |
1968年 | 3篇 |
排序方式: 共有716条查询结果,搜索用时 31 毫秒
231.
Jane F. Silovsky David BardMark Chaffin Debra HechtLorena Burris Arthur OworaLana Beasley Debbie DoughtyJohn Lutzker 《Children and youth services review》2011,33(8):1435-1444
Few studies have specifically examined prevention of child maltreatment among higher-risk populations in rural communities. The overarching goal of this study was to conduct a randomized clinical trial of SafeCare augmented for rural high-risk population (SC+) compared to standard home-based mental health services (SAU) to examine reductions in future child maltreatment reports, as well as risk factors and factors proximal to child maltreatment. Parents (N = 105) of young children (5 years or less) who had identifiable risk of depression, intimate partner violence, or substance abuse were randomized to SC+ or SAU. Participants randomized to SC+ were more likely to enroll (83% vs. 35% for SAU) and remain in services (35 h vs. 8 h for SAU). SC+ (for participants who successfully completed services) may have had limited impact on child welfare reports during service provision. Further, SC+ had fewer child welfare reports related to DV than SAU. Parent self-reports of parenting behaviors, risk factors, and protective factors did not demonstrate significant sustained program impact. Limitations include power constraints related to sample size. Promising next steps entail future trials with larger sample sizes examining service compliance and further augmentation of SafeCare to bolster service impact and address risk and protective factors. 相似文献
232.
Despite the importance of higher education, Hispanic immigrant youth still have far lower college attainment rate than whites in the U.S. Existing studies show the significant role of household assets on educational attainment even after controlling for income. Thus, this study examines the role of homeownership and school savings on Hispanic immigrant youth's college attendance and graduation. Findings show that homeownership is a significant positive predictor of Hispanic immigrant youth's college attendance and graduation, but parent school savings is not a significant predictor. Policy and practice implications discussed. 相似文献
233.
Laurens Cherchye Bram De Rock Arthur Lewbel Frederic Vermeulen 《Econometrica : journal of the Econometric Society》2015,83(5):2001-2041
We propose a method to set identify bounds on the sharing rule for a general collective household consumption model. Unlike the effects of distribution factors, the level of the sharing rule cannot be uniquely identified without strong assumptions on preferences across households. Our new results show that, though not point identified without these assumptions, strong bounds on the sharing rule can be obtained. We get these bounds by applying revealed preference restrictions implied by the collective model to the household's continuous aggregate demand functions. We obtain informative bounds even if nothing is known about whether each good is public, private, or assignable within the household, though having such information tightens the bounds. We apply our method to US PSID data, obtaining narrow bounds that yield useful conclusions regarding the effects of income and wages on intrahousehold resource sharing, and on the prevalence of individual (as opposed to household level) poverty. 相似文献
234.
Linda Rosenman Arthur D. Shulman Robyn Penman 《The Australian journal of social issues》1981,16(1):18-31
The support systems that are used across the life cycle by women who become widowed were investigated in terms of (a) their frequency of use, and (b) problems for which support services were not seen as being available. In-depth interviews with 298 widowed women indicate relatively little use of organized social services for personal problems. In contrast, family and local doctors were called upon to help with a wide range of personal and economic problems. Many women had problems for which they perceived little or no help as being available in the community. Expectations of ‘front line’ professionals such as doctors, teachers and bankers for help and consultation were frequently not met. Implications of these findings for support systems are discussed. 相似文献
235.
Although investors are concerned foremost with mean and variance, they are also sensitive to downside risk. In this paper, we introduce an index of downside risk aversion to distinguish risk aversion from higher-order aspects of risk preference, including prudence. We show that the index of downside risk aversion S increases with monotonic downside risk averse transformations of utility, thereby directly linking S to the definition of downside risk aversion introduced by Menezes et al. (American Economic Review, 70, 921–932, 1980). Although the index S applies equally to risk averse and risk loving decision makers, for a given positive degree of risk aversion, S is greater when the index of prudence is greater and vice versa. 相似文献
236.
Hispanics are now the largest minority group in the United States and their presence is likely to continue to expand. Little is known, however, about the correlates of Hispanic identity or the processes that are involved in its maintenance. We investigate these issues by ascertaining and then seeking to understand the various associations between reported racial identities and Hispanic ethnicity using data from the Current Population Surveys. Restricting the sample to individuals who are known to have demographic origins in Latin America, our results indicate that persons with African or Asian racial identifications are substantially less likely than whites or Others to also identify as Hispanic. Relative to the first generation, Hispanic identification declines and the racial differences increase in the second generation. The exceptions in this regard are Others for whom racial and Hispanic identifications are the most highly associated for both the first and second generations. These findings are interpreted as reflecting various social processes that are involved in the development and maintenance of racial and ethnic identities. Our results provide insight into the complex, social nature of Hispanic identification in modern America. 相似文献
237.
238.
239.
240.