全文获取类型
收费全文 | 17684篇 |
免费 | 465篇 |
国内免费 | 3篇 |
专业分类
管理学 | 2494篇 |
民族学 | 108篇 |
人才学 | 3篇 |
人口学 | 1569篇 |
丛书文集 | 89篇 |
理论方法论 | 1678篇 |
综合类 | 288篇 |
社会学 | 8457篇 |
统计学 | 3466篇 |
出版年
2023年 | 88篇 |
2021年 | 96篇 |
2020年 | 255篇 |
2019年 | 404篇 |
2018年 | 442篇 |
2017年 | 631篇 |
2016年 | 443篇 |
2015年 | 309篇 |
2014年 | 443篇 |
2013年 | 3092篇 |
2012年 | 560篇 |
2011年 | 554篇 |
2010年 | 431篇 |
2009年 | 434篇 |
2008年 | 436篇 |
2007年 | 455篇 |
2006年 | 436篇 |
2005年 | 426篇 |
2004年 | 387篇 |
2003年 | 307篇 |
2002年 | 364篇 |
2001年 | 461篇 |
2000年 | 415篇 |
1999年 | 375篇 |
1998年 | 292篇 |
1997年 | 275篇 |
1996年 | 251篇 |
1995年 | 232篇 |
1994年 | 278篇 |
1993年 | 242篇 |
1992年 | 269篇 |
1991年 | 269篇 |
1990年 | 265篇 |
1989年 | 239篇 |
1988年 | 208篇 |
1987年 | 226篇 |
1986年 | 199篇 |
1985年 | 230篇 |
1984年 | 238篇 |
1983年 | 202篇 |
1982年 | 187篇 |
1981年 | 133篇 |
1980年 | 164篇 |
1979年 | 175篇 |
1978年 | 150篇 |
1977年 | 132篇 |
1976年 | 123篇 |
1975年 | 141篇 |
1974年 | 128篇 |
1973年 | 88篇 |
排序方式: 共有10000条查询结果,搜索用时 468 毫秒
221.
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
222.
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
223.
224.
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
225.
Spaan E 《The International migration review》1994,28(1):93-113
"This article discusses international migration from Java in the past and present and the role brokers have played in stimulating this movement. It describes legal and clandestine labor migration to Singapore, Malaysia, and Saudi Arabia, the influence of employment brokers on the process, and the organization of the recruitment networks. The involvement of brokers is crucial but not always beneficial for the migrants. Migrants are dependent on the brokers and risk exploitation. In the case of movement to Saudi Arabia, there is a linkage with religious institutions and the Islamic pilgrimage." 相似文献
226.
"This article presents some of the latest available figures on illegal immigration in Japan, a process that did not assume significant proportions until the mid-1980s. It also discusses briefly the latest developments around 'immigration' policy--more precisely, the law on the entry and exit of aliens." 相似文献
227.
228.
229.
Brown E 《Physician executive》1995,21(9):46-47
The heated national health care reform debate of the summer of 1993 has now simmered down, but pieces of the debate are still percolating along at the state level. Within the past year, numerous states have introduced bills that would mandate insurance coverage for investigational cancer therapies--in particular high-dose chemotherapy and bone marrow transplant for breast cancer. The problem with these initiatives, well-intended though they may be, is that they threaten to spread unproven technologies at a rapid rate and at the same time miss the opportunity to collect data that would prove the safety and effectiveness of the methods. The author explores these issues and suggests how managed care companies can play a more aggressive role in parrying the threat. 相似文献
230.
The Department of Justice has estimated that the government loses $100 billion annually in health care fraud. Consequently, the government's health care fraud enforcement activities with respect to all health care providers and suppliers continue to grow. Last year alone, the government collected more than $8 billion in settlements, fines, and penalties involving health care fraud. Recent settlements with the government have begun to include corporate compliance programs that require continued government oversight of the health care organization as an essential part of the settlement. The first section of this article describes the legal significance of health care companies' having corporate compliance programs. The second section provides a sample list of topics that should be included in any corporate compliance program. Finally, we describe various issues related to the creation and implementation of corporate compliance programs. 相似文献