全文获取类型
收费全文 | 90325篇 |
免费 | 1986篇 |
国内免费 | 5篇 |
专业分类
管理学 | 12345篇 |
民族学 | 545篇 |
人才学 | 25篇 |
人口学 | 6866篇 |
丛书文集 | 517篇 |
理论方法论 | 9385篇 |
综合类 | 2116篇 |
社会学 | 41726篇 |
统计学 | 18791篇 |
出版年
2023年 | 516篇 |
2021年 | 578篇 |
2020年 | 1528篇 |
2019年 | 2235篇 |
2018年 | 2103篇 |
2017年 | 3151篇 |
2016年 | 2411篇 |
2015年 | 2068篇 |
2014年 | 2653篇 |
2013年 | 18898篇 |
2012年 | 2333篇 |
2011年 | 2107篇 |
2010年 | 1956篇 |
2009年 | 2188篇 |
2008年 | 2020篇 |
2007年 | 1820篇 |
2006年 | 2051篇 |
2005年 | 2251篇 |
2004年 | 2133篇 |
2003年 | 1862篇 |
2002年 | 1957篇 |
2001年 | 1939篇 |
2000年 | 1722篇 |
1999年 | 1640篇 |
1998年 | 1481篇 |
1997年 | 1327篇 |
1996年 | 1272篇 |
1995年 | 1312篇 |
1994年 | 1286篇 |
1993年 | 1256篇 |
1992年 | 1245篇 |
1991年 | 1173篇 |
1990年 | 1171篇 |
1989年 | 1009篇 |
1988年 | 1100篇 |
1987年 | 971篇 |
1986年 | 879篇 |
1985年 | 1033篇 |
1984年 | 1104篇 |
1983年 | 983篇 |
1982年 | 921篇 |
1981年 | 845篇 |
1980年 | 797篇 |
1979年 | 853篇 |
1978年 | 764篇 |
1977年 | 683篇 |
1976年 | 646篇 |
1975年 | 620篇 |
1974年 | 508篇 |
1973年 | 428篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
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
972.
Prior to the 1980s, managed care was virtually nonexistent as a force in health care. Presently, 64 percent of employees in America are covered by managed care plans, including health maintenance organizations (20 percent) and preferred provider organizations (44 percent). In contrast, only 29 percent of employees were enrolled in managed care plans in 1988 and only 47 percent in 1991. To date, the primary reason for this incredible growth in managed care has been economic-market pressure to reduce health care costs. For the foreseeable future, political pressures are likely to fuel this growth, as managed care is at the center of President Clinton's national health care plan. Although there are numerous legal issues surrounding managed care, this article focuses primarily on antitrust implications when forming managed care entities. In addition, the corporate practice of medicine doctrine, certain tax issues, and the fraud and abuse laws are discussed. 相似文献
973.
974.
975.
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
976.
Frank AW 《Second opinion (Park Ridge, Ill.)》1994,20(1):10-18
In attempting to manage their practices efficiently, doctors may not allow seriously ill patients enough time to sort out their feelings and raise important questions. What is at stake here is not information about prognosis and treatments but the very survival of the soul. 相似文献
977.
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
978.
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
979.
This paper considers the application of Stein-type estimation procedure for the coefficients in a linear regression model when data are available from replicated experiment. Two families of estimators characterized by a single scalar are proposed and their large sample asymptotic properties are derived. These are utilized for comparing the performances of the two estimators along with the conventional estimator and conditions for the superiority of one estimator over the other are deduced. 相似文献
980.
Bielefeld W 《Nonprofit management & leadership》1994,5(1):19-36
This article describes mortality patterns for nonprofit organizations in a major U.S. metropolitan area between 1980 and 1988. Twenty percent of the nonprofits in a panel ceased operations during this period. Mortality rates were found to vary widely. In some instances, high mortality was found in parts of the sector that were growing rapidly. Overall, nonprofits that ceased to operate were younger and smaller, used fewer strategies to attract funders, and had less diversified income streams than survivors. These patterns also varied substantially. The results point to the drawbacks of using limited or commonsense information and the necessity of theory-based research. 相似文献