全文获取类型
收费全文 | 14498篇 |
免费 | 347篇 |
国内免费 | 2篇 |
专业分类
管理学 | 2010篇 |
民族学 | 77篇 |
人口学 | 1358篇 |
丛书文集 | 54篇 |
理论方法论 | 1266篇 |
综合类 | 158篇 |
社会学 | 6634篇 |
统计学 | 3290篇 |
出版年
2023年 | 84篇 |
2021年 | 83篇 |
2020年 | 203篇 |
2019年 | 305篇 |
2018年 | 349篇 |
2017年 | 510篇 |
2016年 | 368篇 |
2015年 | 244篇 |
2014年 | 351篇 |
2013年 | 2662篇 |
2012年 | 440篇 |
2011年 | 425篇 |
2010年 | 310篇 |
2009年 | 309篇 |
2008年 | 334篇 |
2007年 | 307篇 |
2006年 | 353篇 |
2005年 | 322篇 |
2004年 | 295篇 |
2003年 | 267篇 |
2002年 | 313篇 |
2001年 | 345篇 |
2000年 | 353篇 |
1999年 | 342篇 |
1998年 | 262篇 |
1997年 | 247篇 |
1996年 | 224篇 |
1995年 | 198篇 |
1994年 | 236篇 |
1993年 | 202篇 |
1992年 | 234篇 |
1991年 | 250篇 |
1990年 | 236篇 |
1989年 | 238篇 |
1988年 | 171篇 |
1987年 | 192篇 |
1986年 | 176篇 |
1985年 | 196篇 |
1984年 | 177篇 |
1983年 | 167篇 |
1982年 | 147篇 |
1981年 | 127篇 |
1980年 | 130篇 |
1979年 | 139篇 |
1978年 | 128篇 |
1977年 | 106篇 |
1976年 | 101篇 |
1975年 | 104篇 |
1974年 | 95篇 |
1973年 | 68篇 |
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
221.
Kirisci K 《International migration (Geneva, Switzerland)》1996,34(3):385-412
"While several studies (in both Turkish and English) have been made on migration to the Ottoman Empire from the Caucasus and the Balkans during the nineteenth century...very little systematic and comprehensive research on migration has been undertaken on the period since the establishment of the Turkish Republic. This article, which aims to partially fill the gap, is divided into three parts: the issue of national refugees (refugees of Turkish origin) in relation to Turkey's overall refugee policy; Turkey's policy towards national refugees; and the volume and causes of refugee migration to Turkey since 1945." (SUMMARY IN FRE AND SPA) 相似文献
222.
The need for long-term care is driven both by the growth of the elderly population and changes in the age relations of morbidity, disability, and mortality. Data show these relations changed in the U.S. elderly population from 1982 to 1989. Chronic disability prevalence declined between the 1982 and 1989 U.S. National Long Term Care Surveys. Among those impaired, many persons using personal assistance to meet their needs shifted to the use of assisted housing and special equipment. The relation of these trends to other changes--such as the increasing educational level of the elderly population--is examined to estimate how future changes in disability and morbidity may affect the demand for long-term care. Disabilities at specific times as well as their transition rates were examined to determine how long individuals need long-term care. The analyses suggest that, while the amount of long-term care services needed will increase rapidly, the types and amounts of services used by the U.S. elderly population will undergo significant change. 相似文献
223.
Women in many countries of southern Africa do not have majority status or have only recently gained this right. Majority status grants individuals adult legal status and the right to bring matters to court, own and administer property, have legal custody of children, and contract for marriage. This article summarizes the legal status of women in Botswana, Lesotho, South Africa, Swaziland, Zambia, and Zimbabwe. Lack of majority status contributes to the ongoing risk of poverty for women and makes them overly dependent on men. Compounding the situation in these countries is the presence of a dual legal system. Improving the situation of women and their families involves targeting changes in the legal system, influencing implementation of laws, educating women about their rights, and giving women needed support to seek their legal rights. The legal status of women must be viewed in the context of historical changes in the economic, educational, political, and cultural developments of society.The research for this paper was conducted during her previous faculty affiliation with the University of Michigan, School of Social Work. Her research interests include the impact of social change on women and families, rural mental health services, and health and mental health linkages. She received her Ph.D. from Rutgers University and her M.S.W. from the Columbia University School of Social Work.Her research interests are gender, work and family, culture and power, social transformations in rural and peri-urban communities, critical education, women and community politics, history of women, family and kinship issues, and community-based program development and evaluation. She received her M.S.W. from Dalhousie University, Halifax. 相似文献
224.
SupposeL(X) is the law of a positive random variableX, andZ is positive and independent ofX. Admissible solution pairs (L(X),L(Z)) are sought for the in-law equation $\hat X \cong X o Z$ °Z, where $L\left( {\hat X} \right)$ is a weighted law constructed fromL(X), and ° is a binary operation which in some sense is increasing. The class of weights includes length biasing of arbitrary order. When ° is addition and the weighting is ordinary length biasing, the class of admissibleL(X) comprises the positive infinitely divisible laws. Examples are given subsuming all known specific cases. Some extensions for general order of length-biasing are discussed. 相似文献
225.
226.
What is the future of health care in America? This is Part 2 of The Physician Executive panel discussion that explores the future of health care in America. To narrow this ambitious focus somewhat, the future is defined as five to 10 years hence. In Part 1, which was published in the May/June issue, Russell C. Coile, Jr., Barbara LeTourneau, MD, MBA, FACPE, James Reinertsen, MD, Uwe Reinhardt, PhD, Marshall Ruffin, MD, MPH, MBA, FACPE, and David Vogel, MS, shared their opinions about what the future holds in managed care, information technology, and biotechnology. In Part 2, Susan Cejka, Barbara LeTourneau, MD, MBA, FACPE, John Henry Pfifferling, PhD, Uwe Reinhardt, PhD, and James Todd, MD, share their views on the future of medical education and physician executives. 相似文献
227.
Linney BJ 《Physician executive》1997,23(2):35-38
How do you define organizational politics? The underground system of communication, the grapevine, what's really going on in the organization, rumors, knowing who really has the power? However you define it, all sources agree you'd better not ignore it. According to one physician executive: "Organizational politics is how things really get done, who really has the power, how decisions get made. Things are not always what they appear to be on the organizational chart." Presented here are some thoughts about organizational politics from physician executives and their stories of when it helped or hurt their careers or prevented them from accomplishing something in their organizations. 相似文献
228.
229.
Kordan B 《The International migration review》1997,31(3):704-720
"Designed in 1919-20 by the British mediator Lord Curzon as an armistice proposal between the then warring powers Poland and Soviet Russia, the Curzon Line served to identify the maximum territorial reach of Soviet political influence in Europe....[The author discusses] a program of resettlement which would target communities on both sides of the new border, a policy eventually affecting some 1.4 million individuals...." The implementation and impact of this population exchange are described. 相似文献
230.
China's "tidal wave" of migrant labor: what can we learn from Mexican undocumented migration to the United States? 总被引:1,自引:0,他引:1
Roberts KD 《The International migration review》1997,31(2):249-293
"The purpose of this article is to place Chinese labor migration from agriculture within the context of the literature on labor mobility in developing countries by comparing it to undocumented Mexican migration to the United States. The similarities fall within three general areas: the migration process, the economic and social position of migrants at their destination, and the agrarian structure and process of agricultural development that has perpetuated circular migration. The last section of the article draws upon these similarities, as well as differences between the two countries, to generate predictions concerning the development of labor migration in China." 相似文献