全文获取类型
收费全文 | 8095篇 |
免费 | 43篇 |
国内免费 | 2篇 |
专业分类
管理学 | 389篇 |
民族学 | 190篇 |
人才学 | 22篇 |
人口学 | 501篇 |
丛书文集 | 308篇 |
教育普及 | 1篇 |
理论方法论 | 3353篇 |
现状及发展 | 1篇 |
综合类 | 943篇 |
社会学 | 2195篇 |
统计学 | 237篇 |
出版年
2022年 | 10篇 |
2021年 | 11篇 |
2020年 | 25篇 |
2019年 | 29篇 |
2018年 | 19篇 |
2017年 | 26篇 |
2016年 | 19篇 |
2015年 | 29篇 |
2014年 | 96篇 |
2013年 | 39篇 |
2012年 | 622篇 |
2011年 | 392篇 |
2010年 | 170篇 |
2009年 | 112篇 |
2008年 | 252篇 |
2007年 | 314篇 |
2006年 | 332篇 |
2005年 | 329篇 |
2004年 | 284篇 |
2003年 | 210篇 |
2002年 | 211篇 |
2001年 | 206篇 |
2000年 | 174篇 |
1999年 | 110篇 |
1998年 | 89篇 |
1997年 | 66篇 |
1996年 | 79篇 |
1995年 | 80篇 |
1994年 | 58篇 |
1993年 | 218篇 |
1992年 | 242篇 |
1991年 | 307篇 |
1990年 | 124篇 |
1989年 | 231篇 |
1988年 | 217篇 |
1987年 | 233篇 |
1986年 | 249篇 |
1985年 | 266篇 |
1984年 | 274篇 |
1983年 | 276篇 |
1982年 | 318篇 |
1981年 | 349篇 |
1980年 | 237篇 |
1979年 | 66篇 |
1978年 | 26篇 |
1977年 | 8篇 |
1974年 | 10篇 |
1967年 | 8篇 |
1966年 | 9篇 |
1959年 | 8篇 |
排序方式: 共有8140条查询结果,搜索用时 0 毫秒
101.
102.
The health care provider marketplace continues to undergo dramatic changes with the advent of hospital mergers, acquisitions, and physician and hospital alliances. In this era of managed care, cost containment is still vital to a hospital's success, but many stakeholders--patients, employers, and physicians--are determined that quality of care also remain paramount. How can hospitals reduce their expenses and maintain a quality focus? The answer lies in a successful clinical reengineering initiative. One progressive model of clinical reengineering is presented, as well as examples of initiatives at three health care institutions. Initial results of clinical redesign programs have been dramatic and encouraging, with documented evidence of simultaneous cost savings and improved patient care. 相似文献
103.
Brown M 《Physician executive》1996,22(1):5-11
Projecting out to the year 2015 sounds presumptuous. Who can predict that far ahead? Perhaps no one can. Social and organizational arrangements come slowly. It takes five years or so to implement simple concepts, sometimes decades for more radical changes. Once you have the ideas in tangible form, it can take another five years to get it working right. Early adopters bring others into the movement and, over 15-25 years, new directions dominate. It takes at least a generation of new practitioners to take on the new values and methods so what is likely to dominate in 2015 is beginning to be taken somewhat seriously as the successor movement to our current fad with externally imposed managed care. Put another way, entire generations of people will resist new ideas, making implementation unlikely until their control fades and a new generation takes the helm. The exciting challenge for the observer is to address the issue of where health is and should be going. Both are difficult challenges. Agreeing on what is important and what is not represents a competitive challenge. How do we perceive the world? Surely our value sets will color what we see. Who is not predisposed to select a future where they fit and their pet theories are likely to become reality. For these and other reasons, it is probably easier to agree on what we would like to see happen in the future than on what is happening. Unfortunately, unless we see the world as it is, we are less likely to be able to shift it in a direction we would like to see. 相似文献
104.
It's up to the physician executive to make an informed choice when selecting a "next-generation" information system. Look for systems that truly integrate (not merely interface) managed care components, clinical capabilities, and other features in a model that mimics the workflow of an actual practice. Take the time to learn about the technology. Consider how a vendor's product will work at every point within your organization. Seven critical features that physician executives should consider in their decision-making are described. 相似文献
105.
Ghana. Ministry of Health 《National population news bulletin : newsletter of the National Population Council》1996,1(3):5, 8
USAID has assisted the Ghanian Ministry of Health since 1991 to boost family planning services under the Ghana Family Planning and Health Project by providing supplies and information and increasing the effectiveness of HIV/AIDS prevention and control. The sustainability of the health system is endangered by favoring capital expenditures in lieu of continuous expenditures; the lack of linkage between project activities and regular activities; the centralization of resource flow; and too ambitious targeting. Capital outlays provided by USAID featured in the construction of four public health laboratories, but their operation also requires continuous financing amounting to about 10% of the whole investment. The latter is the responsibility of the government, although the details of these recurrent costs were not detailed at the outset and providing these funds for continuous operation may impair the operation of other systems. The resource constraints could be alleviated by an effective cost-recovery system or by the general improvement of the economy. The lack of linkage between project and regular activities is serious at regional and district levels. The centralization of resource flow means that most resources are kept for headquarter level activities, thus other activities suffer and the health sector becomes excessively reliant on donor support. Too ambitious planning stems from pressure on donors and hastily implemented projects result in duplication and waste. Closer consultation with the parties involved would improve the situation. The rivalry of technical and policy groups has contributed to past deficiencies. Double funding for the same activity has also occurred further increasing the dependence on donor funding. By concentration on people and systems sustainability would be enhanced, while cost recovery would help the operation of the laboratories. The Health Education Unit (HEU) recognized the importance of IEC and obtained financing for such activities. 相似文献
106.
A striking characteristic of recent Western labour market trends is the rise in employment among mothers of very young children. So far, few studies have analysed the impact of public policies on employment rates of young mothers. In this study we address this issue by comparing two similar countries, Norway and Sweden, which have the same set of policies with slight variations, using data sets with similar designs. We analyse rates of re-entry into paid work after first birth for mothers in 1968–88 by means of hazard regression. One important finding is that the right to paid maternity leave with jobsecurity greatly speeds up the return to work.We want to thank Jan Kowalski for programming assistence and the Swedish Research Council for the Social Sciences and the Swedish Council for Research in the Humanities and Social Sciences for financial support for the Swedish study. We are grateful to John F. Ermisch, Siv Gustafsson, to two anonymous referees and to colleagues at the Demography Unit for valuable comments. Responsible editors. Siv S. Gustafsson, John F. Ermisch. 相似文献
107.
Soifer E 《The Journal of social issues》1996,52(2):31-50
This paper offers a philosophical consideration and evaluation of several different criteria of moral standing, and discusses their implications for persistent vegetative state (PVS) individuals who were once competent. It is argued that the only criterion PVS individuals meet is that of being human, which is not the best test of moral standing. Accordingly it is, in principle, morally acceptable to perform passive or active euthanasia on PVS individuals or to use their bodies for research or for organ harvest. Nevertheless, the autonomous choices made by the persons the PVS individuals used to be can still impose moral obligations. Indeed, it is argued that the capacity for autonomy is a particularly appealing criterion of moral standing, and that the implications of this standard for PVS individuals confirm that appeal. 相似文献
108.
Experiments involving large social units, such as schools, work sites, or whole cities, are commonly limited in statistical power because the number of randomized units is small, leaving few degrees of freedom for residual (between-unit) error. The authors describe a method for increasing residual degrees of freedom in a community experiment without substantially increasing cost or difficulty. In brief, they propose that the experimental units should be divided into random subsamples (batches). Batch sampling can improve statistical power if the community endpoint means are stable over time or if their temporal variation is comparable in period to the batch-sampling schedule. The authors demonstrate the theoretical advantages of the batch system and illustrate its use with data from the Pawtucket Heart Health Program, in which such a design was implemented. 相似文献
109.
The Chittagong Healthy City Project was carried out in late 1994 in Chittagong, Bangladesh. This paper presents findings of an evaluation of the project based upon internationally generated process indicators related to the institutional aspects of the project. The following issues are discussed with regard to project implementation: the institutional organization of local authorities, institutions' conceptual understanding of the project, formal insertion of the project into public authorities' activities, institutional leadership of the project, central-local relations, the lack of interministerial coordination, the project's office, international projects, and community organization. Giving consideration to these issues may help program planners detect problems in forthcoming projects prior to their implementation. 相似文献
110.
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