全文获取类型
收费全文 | 867篇 |
免费 | 29篇 |
专业分类
管理学 | 55篇 |
民族学 | 6篇 |
人口学 | 82篇 |
丛书文集 | 10篇 |
理论方法论 | 115篇 |
综合类 | 14篇 |
社会学 | 581篇 |
统计学 | 33篇 |
出版年
2023年 | 5篇 |
2022年 | 4篇 |
2020年 | 9篇 |
2019年 | 24篇 |
2018年 | 18篇 |
2017年 | 29篇 |
2016年 | 28篇 |
2015年 | 14篇 |
2014年 | 23篇 |
2013年 | 128篇 |
2012年 | 41篇 |
2011年 | 20篇 |
2010年 | 22篇 |
2009年 | 36篇 |
2008年 | 33篇 |
2007年 | 32篇 |
2006年 | 25篇 |
2005年 | 22篇 |
2004年 | 23篇 |
2003年 | 14篇 |
2002年 | 27篇 |
2001年 | 9篇 |
2000年 | 16篇 |
1999年 | 21篇 |
1998年 | 19篇 |
1997年 | 7篇 |
1996年 | 15篇 |
1995年 | 15篇 |
1994年 | 17篇 |
1993年 | 16篇 |
1992年 | 13篇 |
1991年 | 8篇 |
1990年 | 7篇 |
1988年 | 15篇 |
1987年 | 9篇 |
1986年 | 9篇 |
1985年 | 10篇 |
1984年 | 8篇 |
1983年 | 8篇 |
1982年 | 7篇 |
1981年 | 11篇 |
1980年 | 10篇 |
1979年 | 13篇 |
1978年 | 8篇 |
1977年 | 5篇 |
1976年 | 5篇 |
1975年 | 10篇 |
1974年 | 3篇 |
1973年 | 6篇 |
1966年 | 4篇 |
排序方式: 共有896条查询结果,搜索用时 875 毫秒
91.
Shortage of girls in China today 总被引:5,自引:0,他引:5
China has the most severe shortage of girls compared to boys of any country in the world today, as documented by China's surveys
and censuses up to 2000. This article evaluates data on sex ratios in China since before the founding of the People's Republic,
and shows that the relative dearth of girls has become more extreme during the last two decades, and that the problem is real
and not merely due to undercounting of girls. Daughters are lost primarily through sex-selective abortion, secondly through
excess female infant mortality, and thirdly through neglect or mistreatment of girls up to age three, in cities as well as
rural areas. Until recently, the dearth of girls was confined to second or higher-order births, but now couples in some provinces
are using sex-selective abortions for first births. Maps show the geographical concentration of life-threatening discrimination
against girls and its spread over time. Son preference, low fertility and technology combine to cause the loss of daughters
in China today and compulsory family planning and the one-child policy exacerbate the problem. The discussion includes what
the People's Republic of China has done to ameliorate life-threatening discrimination against girls and what further steps
might be taken to improve the situation. 相似文献
92.
Judith N. DeSena 《Sociological inquiry》1994,64(3):307-321
This article links the statistical data on residential segregation with the informal practices of individuals. Local gatekeeping practices contribute to the perpetuation of segregation and further explain the patterns of macro-level analyses. This research focuses on the community of Greenpoint, a predominantly white, working-class neighborhood in Brooklyn. The study describes the strategies used by residents of Greenpoint to accomplish residential segregation and to maintain a predominantly white non-Hispanic neighborhood. The process of informal housing networking is supported by the arrangements of local institutions. 相似文献
93.
94.
95.
96.
Steve Myers 《Child Abuse Review》2005,14(2):97-112
The Junction is a Barnardo's children's service based in northern England that provides assessment and intervention in the lives of children and young people who have sexually concerning or harmful behaviour. It is developing methods of assessment that move away from more established approaches to provide a service that attempts to address more comprehensively the circumstances of individuals and families, utilizing a Signs of Safety approach. The principles and methods of this approach are outlined with examples of practice. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
97.
John Bongaarts Judith A. Diers Paul C. Hewett Geoffrey McNicoll 《Population and development review》2003,29(2):328-334
Books reviewed in this article: Paul Demeny and Geoffrey Mcnicoll (eds.), Encyclopedia of Population Barbara Ehrenreich and Arlie Russell Hochschild (eds.), Global Woman: Nannies, Maids, and Sex Workers in the New Economy Food and Agriculture Organization of the United Nations, World Agriculture: Towards 2015/2030: An FAO Perspective and Summary Report Jeanne X. Kasperson and Roger E. Kasperson, Global Environmental Risk Richard Lynn, Eugenics: A Reassessment Douglas W. Maynard, Hanneke Houtkoop‐Steenstra, Nora Gate Schaeffer, and Johannes van der Zouwen (eds.), Standardization and Tacit Knowledge: Interaction and Practice in the Survey Anthony M. Messina (ed.), West European Immigration and Immigrant Policy in the New Century 相似文献
98.
We describe a two-phase algorithm for MAX-SAT and weighted MAX-SAT problems. In the first phase, we use the GSAT heuristic to find a good solution to the problem. In the second phase, we use an enumeration procedure based on the Davis-Putnam-Loveland algorithm, to find a provably optimal solution. The first heuristic stage improves the performance of the algorithm by obtaining an upper bound on the minimum number of unsatisfied clauses that can be used in pruning branches of the search tree.We compare our algorithm with an integer programming branch-and-cut algorithm. Our implementation of the two-phase algorithm is faster than the integer programming approach on many problems. However, the integer programming approach is more effective than the two-phase algorithm on some classes of problems, including MAX-2-SAT problems. 相似文献
99.
100.