全文获取类型
收费全文 | 3241篇 |
免费 | 616篇 |
专业分类
各国政治 | 42篇 |
工人农民 | 364篇 |
世界政治 | 62篇 |
外交国际关系 | 182篇 |
法律 | 2443篇 |
中国共产党 | 15篇 |
中国政治 | 253篇 |
政治理论 | 225篇 |
综合类 | 271篇 |
出版年
2023年 | 15篇 |
2022年 | 54篇 |
2021年 | 34篇 |
2020年 | 42篇 |
2019年 | 58篇 |
2018年 | 125篇 |
2017年 | 32篇 |
2016年 | 105篇 |
2015年 | 41篇 |
2014年 | 25篇 |
2013年 | 91篇 |
2012年 | 290篇 |
2011年 | 166篇 |
2010年 | 133篇 |
2009年 | 227篇 |
2008年 | 186篇 |
2007年 | 112篇 |
2006年 | 140篇 |
2005年 | 476篇 |
2004年 | 202篇 |
2003年 | 162篇 |
2002年 | 133篇 |
2001年 | 110篇 |
2000年 | 28篇 |
1999年 | 94篇 |
1998年 | 19篇 |
1997年 | 18篇 |
1996年 | 35篇 |
1995年 | 21篇 |
1994年 | 26篇 |
1993年 | 21篇 |
1992年 | 43篇 |
1991年 | 53篇 |
1990年 | 58篇 |
1989年 | 73篇 |
1988年 | 43篇 |
1987年 | 45篇 |
1986年 | 54篇 |
1985年 | 29篇 |
1984年 | 25篇 |
1983年 | 20篇 |
1981年 | 12篇 |
1978年 | 11篇 |
1975年 | 14篇 |
1974年 | 25篇 |
1973年 | 15篇 |
1972年 | 16篇 |
1971年 | 19篇 |
1970年 | 13篇 |
1968年 | 11篇 |
排序方式: 共有3857条查询结果,搜索用时 15 毫秒
991.
Paul?F.?SteinbergEmail author 《International Environmental Agreements: Politics, Law and Economics》2005,5(4):395-404
With the renewed international emphasis on governance for sustainable development, political scientists wishing to have an
impact on global environmental problems will find significant opportunities to collaborate with practitioners. These collaborations
can be very rewarding, but academics should enter them with their eyes open to the associated challenges. Bridging the worlds
of research and practice entails tensions between what is true according to the research, and what is possible given the constraints
of specific organizations; between the problems that practitioners need solved and the puzzles that researchers find appealing;
and, importantly, between the divergent cultures that shape the expectations and incentives of academics and their counterparts. 相似文献
992.
Developing Countries and Global Environmental Governance: From Contestation to Participation to Engagement 总被引:1,自引:0,他引:1
Adil?NajamEmail author 《International Environmental Agreements: Politics, Law and Economics》2005,5(3):303-321
Developing countries did not start off as demandeurs of global environmental governance. Although they are still rather skeptical about the global environmental enterprise, they
have come a long way from being the vigorous contestants that they were three decades ago. This fascinating evolution has
not only changed the views of developing countries but has also transformed the shape of the global environmental discourse,
most significantly by turning what used to be global environmental politics into what is now the global politics of sustainable
development. This paper charts this evolution by using the twin conceptual lenses of effectiveness and legitimacy and the
heuristic markers of the three key global conferences on the global environment (Stockholm 1972; Rio de Janeiro 1992; Johannesburg
2002). The paper argues that the pre-Stockholm era was exemplified by a politics of contestation by the South; the Stockholm-to-Rio period was a period of reluctant participation as a new global compact emerged around the notion of sustainable development; and the post-Rio years have seen the emergence
of more meaningful, but still hesitant, engagement by the developing countries in the global environmental project but very much around the promise and potential of actualizing
sustainable development.
The author is grateful to an anonymous review, and to Steinar Andresen, Ellen Hey, and Jessica Green for valuable comments. 相似文献
993.
In this paper, the strengths and weakneses of randomized field experiments are discussed. Although it seems to be common knowledge
that random assignment balances experimental and control groups on all confounders, other features of randomized field experiments
are somewhat less appreciated. These include the role of random assignment in statistical inference and representations of
the mechanisms by which the treatment has its impact. Randomized experiments also have important limitations and are subject
to the fidelity with which they are implemented. In the end, randomized field experiments are still the best way to estimate
causal effects, but are a considerable distance from perfection. 相似文献
994.
The purpose of the present study is to assess the impact of a juror orientation videotape on juror knowledge of the legal system and comfort levels regarding jury service. Juror knowledge and comfort were measured using the Juror Knowledge and Comfort Scale (JKCS). It was hypothesized that jurors exposed to the orientation videotape would be significantly more knowledgeable about the legal system and significantly more comfortable with their role as jurors. It was further hypothesized that there would be a significant correlation between the knowledge scale and comfort scale of the JKCS. Results indicate that jurors exposed to the orientation videotape scored significantly higher on both the knowledge scale and comfort scale than jurors not exposed to the orientation videotape. There is also a significant correlation between the juror knowledge and comfort components of the JKCS. The implications of the findings and directions for future research are discussed. 相似文献
995.
The Food and Drug Administration (FDA or we) is amending its regulation governing reporting of deaths, serious injuries, and certain malfunctions related to medical devices. We are revising the regulation into plain language to make the regulation easier to understand, and we are making technical corrections. Elsewhere in this issue of the Federal Register, we are publishing a companion proposed rule, under FDA's usual procedures for notice and comment, to provide a procedural framework to finalize the rule in the event we receive any significant adverse comment and withdraw the direct final rule. 相似文献
996.
We are amending 42 CFR part 70 to establish vaccination clinics and a user fee in connection with the administration of vaccination services and vaccine. On December 7, 2004, HHS Secretary Tommy G. Thompson announced the purchase of 1.2 million doses of GlaxoSmithKline (GSK) influenza vaccine, Fluarix, for distribution to areas most in need as determined by State public health authorities. The Fluarix vaccine has been approved in seventy-eight foreign countries, and FDA has recently reviewed extensive manufacturing and summary clinical information and conducted an inspection of the GSK manufacturing facility in Germany to determine that this vaccine, although not licensed in the United States, is suitable for use under an Investigational New Drug application (IND). The Food and Drug Administration (FDA) reviewed GSK's IND application as well as the clinical protocol and manufacturing data. CDC and CDC's Institutional Review Board approved the GSK flu vaccine response protocol including the informed consent document. To ensure that the vaccine is properly administered to individuals identified to be most at risk and facilitate compliance with IND requirements, CDC is establishing vaccination clinics. CDC is proceeding without delay because of the unprecedented nature of this season's influenza vaccine shortage caused by contamination problems with Chiron Corporation's production facility in the United Kingdom, which effectively cut in half the expected United States supply of inactivated influenza vaccine. A user fee is being established in order to recoup the costs associated with administering the vaccine and for the vaccine itself. All individuals, other than those who are enrolled in Medicare Part B, will be required to pay the user fee. 相似文献
997.
The Occupational Safety and Health Administration (OSHA) through this final rule is continuing to remove and revise provisions of its standards that are outdated, duplicative, unnecessary, or inconsistent, or can be clarified or simplified by being written in plain language. The Agency completed Phase I of the Standards Improvement Project in June 1998. In this Phase II of the Standards Improvement Project, OSHA is again revising or removing a number of health provisions in its standards for general industry, shipyard employment, and construction. The Agency believes that the changes streamline and make more consistent the regulatory requirements in OSHA health and safety standards. In some cases, OSHA has made substantive revisions to requirements because they are outdated, duplicative, unnecessary, or inconsistent with more recently promulgated health standards. The Agency believes these revisions will reduce regulatory requirements for employers without reducing employee protection. 相似文献
998.
Introducing a new medical technique, procedure or drug to the public via clinical trials is risky at the best of times. When the trial involves a biotechnology which holds out the promise of prolonging, if not saving, life the push to move from the laboratory to clinical trials may be hard to resist. In this article I explore whether the regulatory scheme for clinical trials in the UK is able to accommodate developing technologies by considering how the current legal and ethical frameworks determine when a procedure such as xenotransplantation should proceed to trials. In particular, I discuss whether basing our regulatory schemes on the principles espoused in the Declaration of Helsinki offer sufficient protection to those who may be affected by xenotransplant trials – the recipient, their health-care workers, close contacts and, unusually, the wider public. I question whether it is possible for a technology to be approved for clinical trials when allowing such trials may benefit the individual but ultimately negatively impact on society as a whole. 相似文献
999.
1000.
Skeem J Schubert C Stowman S Beeson S Mulvey E Gardner W Lidz C 《Law and human behavior》2005,29(2):173-186
Understanding factors that contribute to mental health professionals (MHPs) accuracy in assessing patients risk of violence can inform efforts to improve accuracy and to integrate risk assessment technology with practice. Based on a sample of 147 clinicians who assessed 680 patients in a psychiatric emergency room, this study investigates the influence of patient gender, MHP gender, and their potential interaction on MHPS risk assessment accuracy. The results indicate that MHPs of both genders are particularly limited in their ability to assess female patients risk of future violence. This finding was not limited to a particular professional group and was not attributable to gender-related differences in violence. Implications for future research on the judgment processes that may underlie MHPs limited accuracy with women and for training programs in violence risk assessment are discussed. 相似文献