全文获取类型
收费全文 | 90985篇 |
免费 | 1972篇 |
国内免费 | 5篇 |
专业分类
管理学 | 12419篇 |
民族学 | 546篇 |
人才学 | 26篇 |
人口学 | 6863篇 |
丛书文集 | 532篇 |
理论方法论 | 9415篇 |
综合类 | 2200篇 |
社会学 | 42177篇 |
统计学 | 18784篇 |
出版年
2023年 | 508篇 |
2021年 | 574篇 |
2020年 | 1507篇 |
2019年 | 2217篇 |
2018年 | 2073篇 |
2017年 | 3136篇 |
2016年 | 2387篇 |
2015年 | 2046篇 |
2014年 | 2634篇 |
2013年 | 18898篇 |
2012年 | 2362篇 |
2011年 | 2182篇 |
2010年 | 1985篇 |
2009年 | 2204篇 |
2008年 | 2035篇 |
2007年 | 1874篇 |
2006年 | 2108篇 |
2005年 | 2290篇 |
2004年 | 2163篇 |
2003年 | 1887篇 |
2002年 | 1994篇 |
2001年 | 1981篇 |
2000年 | 1760篇 |
1999年 | 1673篇 |
1998年 | 1493篇 |
1997年 | 1336篇 |
1996年 | 1322篇 |
1995年 | 1322篇 |
1994年 | 1291篇 |
1993年 | 1277篇 |
1992年 | 1259篇 |
1991年 | 1191篇 |
1990年 | 1172篇 |
1989年 | 1011篇 |
1988年 | 1115篇 |
1987年 | 981篇 |
1986年 | 865篇 |
1985年 | 1054篇 |
1984年 | 1113篇 |
1983年 | 998篇 |
1982年 | 930篇 |
1981年 | 838篇 |
1980年 | 802篇 |
1979年 | 865篇 |
1978年 | 762篇 |
1977年 | 687篇 |
1976年 | 652篇 |
1975年 | 628篇 |
1974年 | 512篇 |
1973年 | 437篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
991.
CONTEXT EFFECTS FOR CENSUS MEASURES OF RACE AND HISPANIC ORIGIN 总被引:1,自引:0,他引:1
MARTIN ELIZABETH; DEMAIO THERESA J.; CAMPANELLI PAMELA C. 《Public opinion quarterly》1990,54(4):551-566
This paper reports on the results of a split-ballot experimentconducted in 1987 to test alternative versions of the decennialcensus long form. Two forms were randomly assigned and self-administeredin group sessions involving a total of 515 respondents. Theorder of race and Hispanic origin items was experimentally manipulated.The standard long form asks race, then Hispanic origin. Theexperimental form reversed the order of the items in order toreduce perceived redundancy, and to create a more restrictedframe of reference for the race item. The objectives of thecontext manipulation were (1) to reduce item nonresponse forthe Hispanic origin item, and (2) to reduce reporting of "Otherrace" by Hispanics in the race item. Objective (1) was met.Objective (2) was met for Hispanics born in a U.S. state, butnot for immigrants. The results are interpreted as reflectinga process of acculturation that affects how Hispanic respondentsapply U.S. racial categories "white" and "black" in the census. 相似文献
992.
993.
Alexandra L. Kivowitz 《Clinical Social Work Journal》1990,18(1):73-84
This paper seeks to explore triangular dimensions in individual psychotherapy. In addition to serving as the dyadic object of transference projection and/or as selfobject for a person in psychotherapy, the therapist may be called upon to help the patient work on relationships with certain early, important people or their representations and on the interplay between such relationships and the therapeutic one, that is, in a triangular configuration. Because patients' attempts to introduce others into individual psychotherapy are sometimes experienced by therapists as resistant rather than as integral to the therapeutic process, I propose an empathic reconsideration of such patient efforts to get us to help with the complicated dimensions of human relatedness. 相似文献
994.
Originally presented to the Society of Home Health Care Management of the American College of Physician Executives at its November 16, 1993, meeting in Tucson, Ariz., the program described in this article was the winner of the College's 1994 Innovations Award in Medical Quality Management, sponsored by Merck Sharp & Dohme. The program shows the potential of case management for both improvement in the quality of care and containment of costs for a managed care population with a substantial Medicaid segment. This article is part of a continuing series on innovative programs in home health care. 相似文献
995.
Trentalance AE 《Physician executive》1994,20(7):42-43
The process of billing an insurance company for health care services has changed radically. In the past few years, the emphasis has been on automation. The change is fueled by the opinion of cost containment experts who claim that automation will help reduce costs in the U.S. health care delivery system. Key to success for the provider in adapting to this change will be understanding the coding used in the billing process and following standards of accuracy and fairness. This article is not intended to represent the adjudication rules of any particular insurance company. It is the result of experience as a practicing surgeon and as a consultant in the health care field. 相似文献
996.
The following article is one of a series that deal with the provision of health care services around the world. Other countries in the series include Germany, Italy, Japan, Mexico, the Netherlands, and the United States. Countries scheduled for coverage in the series include Austria, France, Singapore, Spain, and the United Kingdom. The countries are described using a grid of characteristics so that comparisons may be made more easily. All of the analyses, along with further comparative data, will be gathered into a freestanding book to be published later in the year. Dr. Mendoza serves as editor for the project. 相似文献
997.
Cohen JE 《Mathematical Population Studies》1994,5(1):3-24, 121
Several countries have attempted to change human fertility through economic incentives. This paper presents simple mathematical models of the participation of couples in a locally funded program of economic incentives. The models take as a springboard China's one-child program. Localities with low per capita incentives attract few couples to the program, while localities with high incentives attract many couples at first, but the value of the benefits is then watered down. The models show that participation in the program may persistently oscillate or may decay to a stationary level. Which behavior occurs is determined by whether there are decreasing, constant, or increasing returns in the rates of participation in response to successive equal increments in the incentive offered, and by the extent to which prospective parents learn from experience with past oscillations in the incentives. The models raise many empirical questions about the dynamics of incentive programs. 相似文献
998.
Rubén G. Rumbaut 《Sociological Forum》1994,9(4):583-621
Contemporary immigration to the United States and the formation of new ethnic groups are the complex and unintended social consequences of the expansion of the nation to its post-World War II position of global hegemony. Immigrant communities in the United States today are related to a history of American military, political, economic, and cultural involvement and intervention in the sending countries, especially in Asia and the Caribbean Basin, and to the linkages that are formed in the process that open a variety of legal and illegal migration pathways. The 19.8 million foreign-born persons counted in the 1990 U.S. census formed the largest immigrant population in the world, though in relative terms, only 7.9% of the U.S. population was foreign-born, a lower proportion than earlier in this century. Today's immigrants are extraordinarily diverse, a reflection of polar-opposite types of migrations embedded in very different historical and structural contexts. Also, unlike the expanding economy that absorbed earlier flows from Europe, since the 1970s new immigrants have entered an hourglass economy with reduced opportunities for social mobility, particularly among the less educated, and new waves of refugees have entered a welfare state with expanded opportunities for public assistance. This paper seeks to make sense of the new diversity. A typology of contemporary immigrants is presented, and their patterns of settlement, their distinctive social and economic characteristics compared to major native-born racial-ethnic groups, and their different modes of incorporation in—and consequences for—American society are considered. 相似文献
999.
Deborah Burnham Albert M. Teplin 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》1994,4(4):502-518
The benefits of providing a separate accounting for non-profit organisations in the financial accounts of the United States are discussed. At present, national economic accounts in the US include non-profit organisations with individuals in the household sector; separate information on the financial activity of non-profit institutions until now has not been available. In this paper, aggregate statistics from federal government tax-exempt filings for non-profit institutions are put into a US flow-of-funds framework. The data for the 1982–1988 period indicate that non-profit institutions accounted for a significant and growing proportion of assets of the household sector in the United States. Their liabilities were also a surprisingly large share of the household sector total. Moreover, funds supplied by the non-profit sector for investment were in some years comparable to funds made available by several important groups of non-depository financial intermediaries. Separate accounting for non-profit organisations within national economic accounts would be likely to reveal an important channel for investment financing in the United States and would significantly improve our ability to measure and analyse the financial activity of individuals by allowing for a purer household sector.The analysis and conclusions set forth are those of the authors and do not necessarily indicate concurrence by Salomon Brothers, the Board of Governors, Federal Reserve Banks or other members of their staffs. 相似文献
1000.
C. Czado 《Statistical Papers》1994,35(1):189-201
Common binary regression models such as logistic or probit regression have been extended to include parametric link transformation families. These binary regression models with parametric link are designed to avoid possible link misspecification and improve fit in some data sets. One and two parameter link families have been proposed in the literature (for a review see Stukel (1988)). However in real data examples published so far only one parameter link families have found to improve the fit significantly. This paper introduces a two parameter link family involving the modification of both tails of the link. An analysis based on computationally tractable Bayesian inference involving Monte Carlo sampling algorithms is presented extending earlier work of Czado (1992, 1993b). Finally, the usefulness of the two tailed link modification will be demonstrated in an example where single tail modification can be significantly improved upon by using a two tailed modification. 相似文献