全文获取类型
收费全文 | 390篇 |
免费 | 17篇 |
专业分类
管理学 | 44篇 |
民族学 | 4篇 |
人口学 | 61篇 |
丛书文集 | 7篇 |
理论方法论 | 53篇 |
综合类 | 2篇 |
社会学 | 215篇 |
统计学 | 21篇 |
出版年
2021年 | 3篇 |
2020年 | 5篇 |
2019年 | 13篇 |
2018年 | 12篇 |
2017年 | 21篇 |
2016年 | 16篇 |
2015年 | 10篇 |
2014年 | 13篇 |
2013年 | 42篇 |
2012年 | 14篇 |
2011年 | 11篇 |
2010年 | 8篇 |
2009年 | 10篇 |
2008年 | 6篇 |
2007年 | 13篇 |
2006年 | 5篇 |
2005年 | 13篇 |
2004年 | 14篇 |
2003年 | 15篇 |
2002年 | 3篇 |
2001年 | 13篇 |
2000年 | 9篇 |
1999年 | 6篇 |
1998年 | 6篇 |
1997年 | 6篇 |
1996年 | 7篇 |
1994年 | 4篇 |
1993年 | 8篇 |
1992年 | 11篇 |
1991年 | 6篇 |
1990年 | 5篇 |
1989年 | 3篇 |
1988年 | 8篇 |
1987年 | 4篇 |
1986年 | 3篇 |
1985年 | 6篇 |
1983年 | 4篇 |
1981年 | 3篇 |
1980年 | 5篇 |
1979年 | 9篇 |
1978年 | 4篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1972年 | 3篇 |
1971年 | 2篇 |
1969年 | 2篇 |
1968年 | 3篇 |
1965年 | 2篇 |
1964年 | 3篇 |
1961年 | 2篇 |
排序方式: 共有407条查询结果,搜索用时 15 毫秒
121.
122.
Finite first-order gambles are axiomatized. The representation combines features of prospect and rank-dependent theories. What is novel are distinctions between gains and losses and the inclusion of a binary operation of joint receipt. In addition to many of the usual structural and rationality axioms, joint receipt forms an ordered concatenation structure with special features for gains and losses. Pfanzagl's (1959) consistency principle is assumed for gains and losses separately. The nonrational assumption is that a gamble of gains and losses is indifferent to the joint receipt of its gains pitted against the status quo and of its losses against the status quo.Reprints may be obtained from either author. Luce's work was supported, in part, by the National Science Foundation grant IRI-8996149 to the University of California, Irvine. 相似文献
123.
Patterns of occupational mobility among Negro men 总被引:1,自引:0,他引:1
Otis Dudley Duncan 《Demography》1968,5(1):11-22
124.
125.
126.
127.
We use data from the Indonesia Family Life Survey to investigate the impact of a major expansion in access to midwifery services on health and pregnancy outcomes for women of reproductive age. Between 1990 and 1998 Indonesia trained some 50,000 midwives. Between 1993 and 1997 these midwives tended to be placed in relatively poor communities that were relatively distant from health centers. We show that additions of village midwives to communities between 1993 and 1997 are associated with a significant increase in body mass index in 1997 relative to 1993 for women of reproductive age, but not for men or for older women. The presence of a village midwife during pregnancy is also associated with increased birthweight. Both results are robust to the inclusion of community-level fixed effects, a strategy that addresses many of the concerns about biases because of nonrandom program placement. 相似文献
128.
Sara Horsfall Cristian Alcocer C. Temple Duncan Jonathan Polk 《The Social Science Journal》2001,38(4):617-627
Euthanasia has become a subject of public debate and concern. Here we examine the views of euthanasia among students at an east Texas university. Roughly three-fourths are in favor of euthanasia -similar to the general public. Because the university is located in a conservative geographical area, this result suggests growing approval of the various forms of euthanasia and doctor assisted death. While no significant differences were found between the three student major groups -Liberal Arts, Science and Business, some demographic differences were found within the groups. Mainly, African American female Science majors are the most opposed to euthanasia whereas Caucasian male Science majors are the most in favor and the most likely to use a scientific definition of death. The views of the latter group contrast notably with practicing doctors who lag behind the public in their approval of euthanasia. Student views might reflect a cohort difference, a lack of professional experience, or a growing trend among medical practitioners. Liberal Arts majors are the most conservative of the three groups, indicating nonscientific reasons for opposition. Resistance to euthanasia is apparently associated with demographics and nonscientific reasoning. 相似文献
129.
Welfare benefits,economic opportunities,and out-of-wedlock births among black teenage girls 总被引:4,自引:0,他引:4
This article presents a model of teenage out-of-wedlock births that incorporates the effects of both welfare and nonwelfare economic opportunities. We construct measures of the likely "medium-run" income available to a teenage girl in the event of an out-of-wedlock birth and in the absence of a birth and then estimate a logit model to determine their importance in influencing fertility behavior. The model is estimated with data from the Panel Study of Income Dynamics on nearly 900 black teenagers. We find weak and statistically insignificant positive effects of Aid to Families With Dependent Children (AFDC) benefit levels and stronger and significant negative effects of economic opportunities on the probability of AFDC-related out-of-wedlock teen births. 相似文献
130.
What are the economic consequences of divorce? 总被引:3,自引:0,他引:3
Our analysis suggests that Weitzman's finding concerning the precipitous decline in the economic status of women following divorce is likely to be incorrect. Her findings not only imply improbably large changes in income but are also inconsistent with the information she reports on changes in income and in income per capita. Corrected estimates suggest a decline in economic status of about one-third, rather than the widely cited 73 percent figure. It remains the case that the economic status of men and women diverge substantially in the years after divorce. That difference, however, is not nearly as dramatic as suggested by Weitzman's findings. 相似文献