全文获取类型
收费全文 | 473篇 |
免费 | 17篇 |
专业分类
各国政治 | 44篇 |
工人农民 | 24篇 |
世界政治 | 41篇 |
外交国际关系 | 19篇 |
法律 | 231篇 |
中国政治 | 5篇 |
政治理论 | 120篇 |
综合类 | 6篇 |
出版年
2022年 | 2篇 |
2020年 | 5篇 |
2019年 | 8篇 |
2018年 | 11篇 |
2017年 | 20篇 |
2016年 | 20篇 |
2015年 | 15篇 |
2014年 | 14篇 |
2013年 | 74篇 |
2012年 | 11篇 |
2011年 | 7篇 |
2010年 | 10篇 |
2009年 | 18篇 |
2008年 | 12篇 |
2007年 | 16篇 |
2006年 | 16篇 |
2005年 | 14篇 |
2004年 | 11篇 |
2003年 | 13篇 |
2002年 | 10篇 |
2001年 | 15篇 |
2000年 | 13篇 |
1999年 | 9篇 |
1998年 | 6篇 |
1997年 | 4篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1994年 | 3篇 |
1993年 | 8篇 |
1992年 | 9篇 |
1991年 | 6篇 |
1990年 | 7篇 |
1989年 | 7篇 |
1988年 | 10篇 |
1987年 | 6篇 |
1986年 | 7篇 |
1985年 | 7篇 |
1984年 | 5篇 |
1983年 | 5篇 |
1982年 | 6篇 |
1981年 | 7篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 4篇 |
1977年 | 2篇 |
1974年 | 5篇 |
1973年 | 8篇 |
1969年 | 4篇 |
1968年 | 3篇 |
1965年 | 2篇 |
排序方式: 共有490条查询结果,搜索用时 46 毫秒
461.
462.
MK-801 (dizocilpine) is a non-competitive antagonist at the N-methyl-D-aspartate (NMDA) family of glutamate receptors in the central nervous system. It is an anticonvulsant and also shares several pharmacological properties with phencyclidine and ketamine. It is not observed routinely as a substance of abuse. The deceased, a 45-year-old white male, obtained MK-801 surreptitiously in an attempt to treat a self-diagnosed depression. He was discovered the next morning, unresponsive on the bathroom floor. An empty bottle, labeled to contain 25mg of MK-801, was found near the body.The autopsy was performed at the Joseph A Jachimczyk Forensic Center, Houston, TX. Body weight at autopsy was 88kg. Lungs were edematous and congested (right: 775g; left 700g). The heart had proportionate chambers and was otherwise unremarkable. The kidneys (right: 220g; left 225g) were smooth surfaced. The brain (1550g) was congested and without trauma. Microscopic evaluation of the heart, kidneys and lungs showed normal histology and confirmed pulmonary congestion and edema. Samples of heart blood, liver, bile, vitreous humor, stomach contents and urine were collected at autopsy. There were 550ml of stomach contents.Drugs in blood were screened by EMIT II Plus immunoassay procedures and by gas chromatography/mass spectrometry (GC/MS) of an organic solvent extract of basified blood. Alcohol was determined by gas chromatography with headspace injection. MK-801, benzodiazepines and alcohol were detected in blood.Amounts of MK-801 present in blood, bile, liver, vitreous humor and urine were 0.15, 0.29, 0.92, less than 0.1 and 0.36 mg/l (kg), respectively.The cause of death was benzodiazepine, dizocilpine and ethanol toxicity and the manner accidental. 相似文献
463.
464.
465.
466.
Since the end of the Cold War, globalization has become the
centralphenomenon in world politics. Civilizations, once geographically
based,are now loosened from fixed space, as migration of peoples andof ideas
has accelerated. A focus on the dimensions of intersubjectivitywill give some
understanding both of differences among civilizationsand on transformations
of civilizations. Attention is thus givento different forms of substantive
economies, to historical dominanceand subordination of civilizations and to
the reawakenings ofcultures; to what Sorokin called the sensate and
ideationaltypes of consciousness and to different forms of spirituality,and
to relative orientations toward time and space. Two propositionsare implicit
in a concern for civilizations: (i) that thereare alternatives for the human
future, and (ii) that if differentcivilizations do coexist, the problem of
mutual comprehensionbecomes paramount for the maintenance of world order. The
implicationsfor a research program are to study civil societies as the
sourcesof intersubjective meanings, the maintenance of the biosphereas the
basic material condition of existence of all civilizations,and world
governance as the modus vivendi of a plural world. 相似文献
467.
The authors argue that efficient water allocation is possible through markets as long as water rights are well-defined, enforced, and transferable. They provide a framework for considering third-party and free rider affects from water trades. From this framework, they consider the prospects for developing a market for instream flows. The analysis points to problems with the prior appropriation system for establishing instream flow claims but suggests that there is not reason for water policy to stand in the way of transferring existing consumption rights to instream uses. The authors conclude that changes in water policy which capitalize on market forces will result from conservationconservative coalitions. 相似文献
468.
469.
Terry L. Cooper 《Journal of criminal justice》1974,2(1):19-35
The Delphi Forecasting technique was utilized to assess the general direction and magnitude of broad future trends in the occupationally-related values of police officers. Two panels of experts were established and utilized in the Delphi Process: one composed of veteran police officers and the other consisting of law enforcement educators, top echelon police administrators, attorneys, and social ethicists.Two major trends emerged in the course of the study: a movement toward professionalization and a movement toward unionization. These two movements were found to embody generally conflicting sets of occupationally-related values.The increasing emphasis of police chiefs and their administrators on managerial efficiency was identified as the critical factor influencing the future of these trends. 相似文献
470.
This paper presents an overview of the economic issues facing the American economy. Crisis and transformation scenarios are presented and supply-side versus demand-side economic policies are considered as approaches to revitalizing the economy. Issues such as the extent to which centralization is needed, the kinds of trade-offs that will be required, and the various constraints that exist for policy making are discussed. 相似文献