首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   16903篇
  免费   731篇
各国政治   756篇
工人农民   527篇
世界政治   1235篇
外交国际关系   569篇
法律   11037篇
中国共产党   2篇
中国政治   70篇
政治理论   3306篇
综合类   132篇
  2020年   246篇
  2019年   305篇
  2018年   338篇
  2017年   407篇
  2016年   435篇
  2015年   348篇
  2014年   381篇
  2013年   1691篇
  2012年   407篇
  2011年   475篇
  2010年   420篇
  2009年   433篇
  2008年   448篇
  2007年   409篇
  2006年   437篇
  2005年   376篇
  2004年   383篇
  2003年   375篇
  2002年   378篇
  2001年   708篇
  2000年   650篇
  1999年   483篇
  1998年   257篇
  1997年   248篇
  1996年   197篇
  1995年   192篇
  1994年   232篇
  1993年   207篇
  1992年   334篇
  1991年   372篇
  1990年   335篇
  1989年   359篇
  1988年   336篇
  1987年   311篇
  1986年   374篇
  1985年   320篇
  1984年   277篇
  1983年   292篇
  1982年   182篇
  1981年   189篇
  1980年   138篇
  1979年   218篇
  1978年   133篇
  1977年   127篇
  1976年   118篇
  1975年   100篇
  1974年   143篇
  1973年   138篇
  1972年   125篇
  1971年   99篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
131.
How realistic are democratic-governance strategies that emphasize local governance as a key component? Using Nigeria’s experience in local government and primary health care in the 1980s and 1990s as a case example, the article finds there were substantial shortfalls in local participation and program performance. These were caused by problems in the local political environment and local institutional design, in the national policy environment (particularly in the funding system), and by the stresses of structural adjustment, resource shortfalls, the natural physical environment, and weak leadership. These combined to create poor and inappropriate reward structures and lack of accountability. However, even though the Nigerian case was not successful, most of the specific problems that hurt it are remediable through policy changes at the national level. Several of these were under consideration at the time of the coups of 1992 and 1993.  相似文献   
132.
133.
134.
Conclusions The present study has attempted to artriculate a central issue of Mahäyäna soteriology through an examination of the writings of two Mädhyamika masters, Bhävaviveka and Candrakïrti. The purpose here has been to demonstrate a further criterion for the retrospective designation of their respective philosophies with the terms Svtantrika and Prasangika an exhaustive study of the nature of the Hinayäna wisdom according to the Mädhyamika school would entail an analysis of the writings of many other masters, especially those who produced what has been called the Yogäcära-Mädhyamika synthesis. To attempt to determine the position of Maitreyanätha, for example, on this issue would entail an analysis of the famous Five Treatises (the Dharmadharmatävibhaa, the Madhyäntavibhaga, the Mahayanasutrlamkara, the Uttratantra, and the Abhisamayälamkära) as well as the myriad commentaries on these works. It is possible to speculate briefly here on what the position of Nägärjuna may have been on this issue and then go on to discuss the implications and possible motivations of the views of Bhävaviveka and Candrakïrti.  相似文献   
135.
This paper compares the Medicare prospective payment system (PPS) to four all-payer rate-setting systems that operated under HCFA waiver authority. The study examines the experience of Medicare, Medicaid, and commercial insurers under the two approaches. Data from several American Hospital Association surveys and from Medicaid 2082 report forms are analyzed. The paper concludes that the all-payer waiver programs have been as successful as PPS in controlling the rate of growth in Medicare costs. In addition, Medicaid programs are more successful in controlling their outlays in all-payer rate-setting environments than when they "go alone." Finally, there is no evidence to suggest that hospitals can increase charges in response to greater financial need under either PPS or the state waivers. Nevertheless, it appears that commercial insurers are better able to compete with Blue Cross plans in all-payer rate-setting states than elsewhere.  相似文献   
136.
The functional and nutritive circulation in the lungs is connected by anastomoses between the pulmonary and bronchial arteries. The anastomoses have the structure of blocked arteries from which arteriovenous anastomoses proceed to the peribronchial plexus. The pulmonary artery is provided with a flow impulse by the anastomoses, and oxygen-containing blood is admixed with the venous blood, thus forming an "aortalization" in the lungs. By diverting the bloodstream, venous blood can reach the bronchial artery. The peculiarities of the lung circulation are important for vital reactions in the form of macro- and microembolisms. Macroembolisms prove the functionality of the system if branches of the pulmonary artery are closed before the arteries are blocked. A hemorrhagic infarction either arises or does not arise, and the hemorrhagic infarction cannot exceed a certain limit. A microembolism is over and above the anastomoses. If the microembolism is greater, pressure in the arteria pulmonaris can cause blood from the pulmonary artery to overflow into the bronchial artery. Because arteriovenous anastomoses arise from the blocked arteries, microemboli can now reach the systemic circulation. Thus, the system described can explain the passage of microemboli into the systemic circulation, avoiding the capillaries of the lungs; on the other hand, larger microembolisms can prove the functionality of the system.  相似文献   
137.
Assessment of competency for execution presents two compelling ethical questions for mental health professionals: whether clinicians can ethically provide such assessment, and if so, how it should be done in order to maximize quality and minimize ethical conflict. In this article we address the issue of whether to participate and, if so, how. The question of whether to participate is discussed by summarizing the arguments for and against participation and offering guidelines for making a decision. The question of how to proceed is discussed in two contexts: preadjudication (before a formal decision about competency) and postadjudication (following a determination of "incompetent" and transfer of the offender to another facility for treatment and further assessment). Finally, recommendations are made regarding research that would improve the quality of execution competency assessments.  相似文献   
138.
139.
Weissert  Carol S. 《Publius》1992,22(3):93-109
Rapidly escalating health-care inflation and congressionallymandated expansions have led to large increases in spendingfor Medicaid, the federal-state program of health care for thepoor. These increases came at a time when state budgets werealready under recession-induced stresses. In addition, 1991brought new pressures for Medicaid spending from the courtsand closer federal scrutiny and control over revenues used forthe program's state "match." Yet the Medicaid picture is farfrom bleak. Diversity, innovation, and an emerging stale policyrole also characterize the program in ways that epitomize thestrengths and weaknesses of the American intergovernmental system.  相似文献   
140.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号