全文获取类型
收费全文 | 1594篇 |
免费 | 87篇 |
专业分类
各国政治 | 84篇 |
工人农民 | 85篇 |
世界政治 | 109篇 |
外交国际关系 | 127篇 |
法律 | 862篇 |
中国政治 | 11篇 |
政治理论 | 389篇 |
综合类 | 14篇 |
出版年
2023年 | 20篇 |
2022年 | 18篇 |
2021年 | 20篇 |
2020年 | 39篇 |
2019年 | 53篇 |
2018年 | 61篇 |
2017年 | 77篇 |
2016年 | 77篇 |
2015年 | 50篇 |
2014年 | 71篇 |
2013年 | 215篇 |
2012年 | 64篇 |
2011年 | 50篇 |
2010年 | 49篇 |
2009年 | 49篇 |
2008年 | 57篇 |
2007年 | 74篇 |
2006年 | 62篇 |
2005年 | 60篇 |
2004年 | 45篇 |
2003年 | 43篇 |
2002年 | 56篇 |
2001年 | 30篇 |
2000年 | 30篇 |
1999年 | 36篇 |
1998年 | 22篇 |
1997年 | 15篇 |
1996年 | 10篇 |
1995年 | 20篇 |
1994年 | 18篇 |
1993年 | 12篇 |
1992年 | 26篇 |
1991年 | 15篇 |
1990年 | 9篇 |
1989年 | 11篇 |
1988年 | 14篇 |
1987年 | 9篇 |
1986年 | 10篇 |
1985年 | 12篇 |
1984年 | 10篇 |
1983年 | 9篇 |
1982年 | 8篇 |
1980年 | 5篇 |
1976年 | 6篇 |
1975年 | 4篇 |
1972年 | 2篇 |
1971年 | 4篇 |
1970年 | 2篇 |
1969年 | 3篇 |
1966年 | 5篇 |
排序方式: 共有1681条查询结果,搜索用时 15 毫秒
21.
Emily Jackson 《The Modern law review》2002,65(2):176-203
This article challenges the assumption that their future children's welfare is a relevant consideration when deciding whether to provide a person with assisted conception services. It does not argue that infertility treatment ought to be available as of right. Rather, this article's proposal is that section 13(5) – which specifies that no-one shall receive assistance with conception unless account has first been taken of the welfare of any child who might be born – should be deleted from the Human Fertilisation and Embryology Act 1990. Extending the 'welfare principle' to decisions taken prior to a child's conception is shown to be unjust, meaningless and inconsistent with existing legal principle. 相似文献
22.
Marta Concheiro Ana de Castro Oscar Quintela Manuel Lpez-Rivadulla Angelines Cruz 《Forensic Science International Supplement Series》2005,150(2-3):221
This paper describes the analytical methodology for the determination of MDMA, MDA, MDEA and MBDB in oral fluid. After a liquid–liquid extraction, the analysis was carried out by high performance liquid chromatography (HPLC), with fluorescence detection. The detector wavelength was fixed at 285 nm for excitation and 320 nm for emission. The mobile phase, a mixture of phosphate buffer (pH = 5) and acetonitrile (75:25), and the column, Kromasil 100 C8 5 μm 250 mm × 4.6 mm, allowed good separation of the compounds in an isocratic mode in only 10 min. The method was validated and showed good limits of detection (2 ng/mL) and quantitation (10 ng/mL) for all the amphetamine derivatives. No interfering substances were detected. A stability study of these compounds in oral fluid stored at three different temperatures (−18, 4 and 20 °C) over 10 weeks was conducted, showing a time-dependent degradation of the four compounds. 相似文献
23.
Drug trade is widely seen as a phenomenon rather new to the Netherlands. However, at the beginning of the 20th century the Dutch pharmaceutical industries were already extensively involved in the production of both opiates and cocaine, and they went on exporting large quantities of these drugs after the Opium Act (1919) took force. Until the 1960s, arrests were not at all common, and these largely affected minority groups like Chinese opium smokers and black marijuana users. Since then, drug control efforts have increased by leaps and bounds. At first, cannabis was the main target; then the focus turned to heroin, and that was later joined by cocaine. This paper traces the history of the drug trade and drug control in the Netherlands, with emphasis on their development in Amsterdam. The conclusion is reached that, in spite of drastic changes in both drug trade and drug control, certain ideologies, constructs and strategies have remained remarkably stable. 相似文献
24.
25.
Souza GA 《Estudios demográficos y urbanos》1994,9(1):29-51, 267
"This article presents a complex conceptual and methodological proposal.... The study proposes an analysis similar and complementary to the abstract models of formal demography. Specifically, the article considers the practices and strategies of procreation, as well as the subjectiveness of people as constitutive elements of a succession of generations, as observed on different analytical levels." (SUMMARY IN ENG) 相似文献
26.
A questionnaire study with 243 female undergraduates assessed whether late adolescent females' experiences of autonomy and perceptions of family conflict would moderate the relationship between eating symptoms and personality disturbances associated with severe eating disorders. Univariate correlations between eating symptoms, on the one hand, and perceived family conflict and reports of individuation and mutuality in the adolescent/parent relationship, on the other hand, were relatively weak and for the most part insignificant. However, these data supported a moderating hypothesis in that eating symptoms were more strongly related to interoceptive confusion and maturity fears among participants describing less individuated relationships with their parents and reporting unusually low levels of family conflict.Authors' names are in alphabetical order, indicating equal contribution to this article.Received Ph.D. from Yale University in 1977. Major interests are in young adult and adolescent development, and etiology and treatment of adolescent depression and other psychopathologies.Received her B.A. from Vassar College and M.A. from Michigan State University. Major interests are in adolescent/parent relationships, separation-individuation, and eating disorders. 相似文献
27.
Goran Therborn, European Modernity and Beyond: The Trajectory of European Societies, (Sage, London 1995). 403pp. ISBN 8039 8934 2.
John McGany and Brendan O'Leary, Explaining Northern Ireland, (Blackwell, Oxford 1995). 535pp. ISBN 0–631–18349–3. 相似文献
28.
29.
Paul Jackson 《公共行政管理与发展》2004,24(1):75-86
This article addresses the problems entailed in decentralising a successor state of the former Soviet Union. On many different scales, Georgia should be a wealthy country. The population is well educated, there is rich agricultural land, a thriving wine industry, several mineral extraction industries and access to oil. The central argument of this article is that it is governance, or rather the failure of governance that is at the heart of many of Georgia's problems—in particular, a failure over a number of years to find a balance between the considerable ethnic diversity of the country and their aspirations regarding self‐government, and the need for the assertion of central power from Tblisi in occupying the power vacuum left by the demise of the Soviet Union. The structure of the article moves through an analysis of the context of decentralisation, into a brief survey of the major ethnic groups and the nature of the local government system, paying particular attention to the attempts by Tblisi to provide a coherent glue for a state that is liable to break apart. The concept of the ‘fissile state’ is used to convey this brittle context within which institutional reform needs to take place given the pressures from below and the pressures exerted by external actors as Georgia seeks to move closer to the European polity. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
30.
Jennifer Jackson Preece 《政治学》1998,18(1):17-23
National minorities are collectivities who possess that trait which is the current normative underpinning of states, namely nationhood, and yet for practical purposes cannot enjoy outright political independence. Because national minorities bear these normatively significant characteristics they may be deemed to have legitimate international claims to certain special rights even if these fall short of statehood. Yet although this rationale may be logically sound and morally justified, pursuing it nevertheless raises serious problems with regard to state sovereignty. 相似文献