全文获取类型
收费全文 | 557篇 |
免费 | 21篇 |
专业分类
各国政治 | 25篇 |
工人农民 | 22篇 |
世界政治 | 47篇 |
外交国际关系 | 25篇 |
法律 | 256篇 |
中国政治 | 3篇 |
政治理论 | 195篇 |
综合类 | 5篇 |
出版年
2023年 | 2篇 |
2020年 | 6篇 |
2019年 | 12篇 |
2018年 | 11篇 |
2017年 | 16篇 |
2016年 | 9篇 |
2015年 | 12篇 |
2014年 | 19篇 |
2013年 | 80篇 |
2012年 | 19篇 |
2011年 | 9篇 |
2010年 | 13篇 |
2009年 | 15篇 |
2008年 | 22篇 |
2007年 | 14篇 |
2006年 | 20篇 |
2005年 | 21篇 |
2004年 | 27篇 |
2003年 | 22篇 |
2002年 | 21篇 |
2001年 | 14篇 |
2000年 | 6篇 |
1999年 | 10篇 |
1998年 | 9篇 |
1997年 | 16篇 |
1996年 | 4篇 |
1995年 | 7篇 |
1994年 | 7篇 |
1993年 | 9篇 |
1992年 | 3篇 |
1991年 | 10篇 |
1990年 | 9篇 |
1989年 | 11篇 |
1988年 | 12篇 |
1987年 | 8篇 |
1986年 | 8篇 |
1985年 | 11篇 |
1984年 | 8篇 |
1983年 | 5篇 |
1982年 | 8篇 |
1981年 | 6篇 |
1980年 | 2篇 |
1978年 | 4篇 |
1977年 | 2篇 |
1976年 | 4篇 |
1975年 | 5篇 |
1973年 | 3篇 |
1969年 | 1篇 |
1968年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有578条查询结果,搜索用时 15 毫秒
431.
432.
433.
434.
Rosenfeld DM 《Specialty law digest. Health care law》1999,(246):8-20
In the Medicaid planning context, the answers to seemingly easy questions are often quite elusive. Client identification is fundamental to every attorney-client relationship, yet resolving this basic question for Medicaid planners has sparked some debate. This essay explores the difficult question Medicaid planners encounter regarding client identification. The author, Mr. Rosenfeld, reveals the lack of guidance provided by contemporary legal ethic codes and then investigates some of the client representation models currently used by practitioners. Upon identifying the inherent conflict of interest that often develops in estate planning, Mr. Rosenfeld argues that individual client representation is the only ethically acceptable model of representation. 相似文献
435.
William C. Gunderson Barry G. Rube 《Canadian public administration. Administration publique du Canada》1999,42(2):193-214
Abstract: A growing body of evidence suggests that extensive public involvement can play a constructive role in the cooperative resolution of waste-facility siting decisions. The Canadian experience in pursuing a voluntary strategy for siting of a low-level radioactive waste facility provides some support for this consensus view, in light of its early stages of deliberation and public participation. However, a number of factors have served to limit the effectiveness of a voluntary strategy in this case, more generally, as well as undermine the prospects for a cooperative siting agreement in Deep River, Ontario. This article considers the recent experience in this case and attempts to draw lessons for future use of voluntary siting strategies. The article concludes that extensive public involvement remains an important element of siting but must be viewed as one component of an integrated process of waste-facility siting and management. Sommaire: Les preuves s'accumulent à l'effet que la participation du public peut jouer un rôle constructif dans la prise collaborative des décisions concernant l'emplacement des dépôts de déchets. La stratégie canadienne d'emplacement volon-taire d'un certain dépôt de dechets faiblement radioactifs favorise dans une certaine mesure cette approche collective, au vu des premières étapes de délibération et de participation du public à cette stratégie. Cependant, plusieurs facteurs ont limité l'efficacité d'une stratégie volontaire, dans ce cas particulier ainsi que plus générale-ment, et ont sapé la possibilité d'un accord collectif d'emplacement à Deep River (Ontario). Dans cet article, on examine l'expérience récente de ce cas et on s'efforce de tirer des lecons générales pour l'emploi futur de stratégies d'emplacement volontaire. En conclusion, une participation extensive du public demeure un élément important de la localisation, mais elle n'est qu'une composante d'un processus intégré de localisation et de gestion des dépôts de déchets. 相似文献
436.
R&D laboratories in the United States have during the past decade undergone much structural and environmental change. Much of this change has been in response to public policy initiatives and changing markets. One result of the changing environments of R&D laboratories is that traditional sector-based (government, industry, university) classification of laboratories tells us little about their structure and behavior. This study based on survey data derived from 966 U.S. R&D laboratories, develops an environmental input taxonomy, based not on sector but on the mix of political and market influence on laboratories. This taxonomy is examined in connection with three central policy issues: amount of cooperative research, red tape and bureaucratization, and laboratory output. Traditonal sector classification accounts well for red tape, but the environmental input taxonomy provides additional insights into laboratories' scientific and technical output and cooperative research. 相似文献
437.
In this paper, wasteful rent-seeking behaviour has been shown to have important implications for the determination of the welfare maximizing regulatory policies of replenishable natural resource industries. In general, the incorporation of wasteful rent-seeking activity into the analysis leads to policies which suggest a greater level of industry output than has been advocated by tradition policies that do not take rent-seeking into account. Our analysis therefore supports a more laissez faire policy than has been recommended in the literature.Specifically, we find that when rents are completely dissipated by wasteful rent-seeking activity (t = 1), the role of the regulator is simply to guarantee biological efficiency, should this be threatened by the economic equilibrium achieved by the free-access of firms. One of two possibilities can occur. In the first, the economic equilibrium determined by the free-access of firms is biologically efficient, i.e., the equilibrium steady state of the replenishable natural resource exceeds or is equal to the maximum sustainable yield stock size (x
MSY). If this occurs, the regulator needs to take no action whatsoever. In the second case, the economic equilibrium generated by the free-access of firms does not yield biological efficiency. The equilibrium is characterized by a steady state stock of the natural resource that is smaller that the maximum sustainable yield stock size, namely (x
MSY
<>x
MSY). In this case, therefore, the regulator does need to intervene, but his best policy takes the simple form of setting the total quota equal to the maximum sustainable yield (MSY) of the resource. Thus, while the results are to some extent consistent to those derived by Buchanan for the regulation of externalities, the fact that we are dealing here with replenishable resources adds a further dimension to the issue and changes some of the policy implications. 相似文献
438.
Barry F. Perlmutter 《Journal of youth and adolescence》1987,16(2):89-95
There has been a great deal of debate as to whether or not there is a direct relationship between learning disabilities and delinquent behavior. While the relationship was well established for adjudicated youth, it was more uncertain for adolescents not actively involved with the juvenile justice system. There are indications, however, that the relationship is more complex, with learning disabled (LD) adolescents more likely to develop severe delinquent behaviors than are their nondisabled peers, but unlikely to exhibit a middle ground between delinquent and nondelinquent behavior. It is hypothesized that this difference is due to the ability of most LD children and adolescents to adapt through developing skills that allow them to compensate for their handicapping conditions. Implications for future research are discussed.Partial funding for research support provided by Texas Christian University Research Fund.This article was written by a member of the editorial board of theJournal of Youth and Adolescence as a response to the article by Daniel B. Pickar and Christopher D. Tori, entitled The Learning Disabled Adolescent: Eriksonian Psychological Development, Self-Concept, and Delinquent Behavior, which appeared in Volume 15, Number 5. —Daniel Offer, M. D., Editor-in-Chief.Received Ph. D. in personality and abnormal psychology at Northwestern University. Current research interests include social development and social skills training of both learning disabled and nondisabled adolescents. 相似文献
439.
The purpose of this study was to examine the relationship between neonatal behavior and prenatal and perinatal risk factors in infants of teenage and older mothers in Puerto Rico and Mainland United States. The sample included approximately 300 newborn infants;half were examined in Puerto Rico, the other half in Florida, using the Brazelton Neonatal Behavioral Assessment Scale. Comparisons by maternal age and the number of obstetrical complications showed that for the Puerto Rican group, infants with fewer obstetrical complications were better able to regulate their crying and active states. Infants of teenage mothers with fewer complications had a higher level of arousal than infants of older mothers with fewer complications. Infant behavior in the Mainland sample did not vary by maternal age or complications. Multiple regression analysis indicated that the combination of biomedical variables significantly predicted neonatal behavior in both cultures. Mother's age was not separately correlated with neonatal behavior, but was repeatedly combined with other variables in the significant regressions. The findings suggest that infants of teenage mothers may differ from infants of older mothers, particularly in the organization of state behavior, and that the effects of maternal age on neonatal behavior are increased in the presence of biological outcome factors.This article is based on a final report to the NICHD Center for Population Research, Contract N01-HD-7283.Received Ph.D. from Michigan State University. Main research interests are determinants of neonatal and infant development, assessment of preterm and at risk infant.Received Ph.D. from Harvard University. Main research interests are sociocultural aspects of development, teenage pregnancy, infant temperament and psychophysiology.Received M.A. from University of Florida. Main research interests are prenatal and prenatal factors on development, maternal obstetric medication, and behavioral teratology. 相似文献
440.
New Jersey demonstrates the growing capacity of American statesto devise sophisticated regulatory systems in response to environmentalproblems. The state has erected a complex regulatory structureover the past decade that has served as a model for other statesand the federal government. It has proven particularly innovativein addressing toxic substance and hazardous waste problems andin forging cooperation among departments. At the same time,New Jersey serves as a reminder of the inherent limitationsof environmental regulation by one state in a federal system.Despite its regulatory rigor, New Jersey continues to encounterproblems in interstate regulatory coordination, depends heavilyon the federal government for funding to implement ambitiousprograms, and relies increasingly on export of pollutants andwastes rather than managing them within state boundaries. 相似文献