全文获取类型
收费全文 | 1054篇 |
免费 | 85篇 |
专业分类
各国政治 | 79篇 |
工人农民 | 44篇 |
世界政治 | 89篇 |
外交国际关系 | 111篇 |
法律 | 451篇 |
中国政治 | 4篇 |
政治理论 | 360篇 |
综合类 | 1篇 |
出版年
2023年 | 12篇 |
2022年 | 9篇 |
2021年 | 13篇 |
2020年 | 38篇 |
2019年 | 46篇 |
2018年 | 63篇 |
2017年 | 76篇 |
2016年 | 78篇 |
2015年 | 38篇 |
2014年 | 55篇 |
2013年 | 184篇 |
2012年 | 45篇 |
2011年 | 42篇 |
2010年 | 46篇 |
2009年 | 56篇 |
2008年 | 44篇 |
2007年 | 38篇 |
2006年 | 28篇 |
2005年 | 32篇 |
2004年 | 28篇 |
2003年 | 31篇 |
2002年 | 29篇 |
2001年 | 17篇 |
2000年 | 16篇 |
1999年 | 10篇 |
1998年 | 11篇 |
1997年 | 13篇 |
1996年 | 6篇 |
1995年 | 4篇 |
1994年 | 1篇 |
1993年 | 5篇 |
1992年 | 4篇 |
1991年 | 1篇 |
1989年 | 3篇 |
1988年 | 1篇 |
1987年 | 3篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1980年 | 2篇 |
1978年 | 1篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1971年 | 1篇 |
1970年 | 1篇 |
1966年 | 1篇 |
排序方式: 共有1139条查询结果,搜索用时 15 毫秒
881.
Political Behavior - The original version of this article unfortunately contains the following errors. In the heading “Political Participation and Civic Education”, the text... 相似文献
882.
Rachel Bryant-Waugh Matthew Hankins Roz Shafran Bryan Lask Abe Fosson 《Journal of youth and adolescence》1996,25(4):431-437
We report on a prospective follow-up (mean 3.1 years) of 22 children with anorexia nervosa (mean age at onset—12.1). Adequate information was obtained for 18 children. The specific outcome was good in 10 (55.5%), intermediate in 5 (27.8%), and poor in 3 (16.7%); none had died. No prognostic factors were identified. The findings are compared with those from the long term follow-up of a previous cohort of children with anorexia nervosa, and confirm the unsatisfactory prognosis for this age group.Major research interest concerns the etiology and treatment of eating disorders in children and adolescents.Has been with the Eating Disorders Research Team since 1992. His major interest is research methodologyHas been with the eating disorders Research Team since 1989. Her major interests are in obsessional-compulsive problems and eating disorders in children.Major research interests include eating disorders in children and adolescents, cystic fibrosis, the effects of transplantation in children and adherence to treatment. Chief Editor ofClinical Child Psychology and Psychiatry.
Has been collaborating with the Eating Disorders Research Team since 1985. 相似文献
883.
The impact of the introduction of EU Single Area Payments (SAPs) on farm expansion strategy in Lithuania is investigated, utilising farm accounting and survey data. The introduction of the SAP has a positive influence on farmers' intentions to expand their area compared to a baseline scenario of the hypothetical continuation of pre-accession policy. The switch in policy has a more pronounced effect on farms that were previously credit constrained. While the SAP has been presented as a support that is decoupled from production, its introduction may have ex post coupled effects, through an income multiplier effect on credit constrained farmers. 相似文献
884.
Electronic health records for patients, personal health records (PHRs), have become increasingly popular among policy makers and purchasers, but uptake among patients and physicians has been relatively slow. PHRs have varying uses that might make them more or less appealing to different stakeholders. The three core uses for PHRs — promoting communication, data use, and patient responsibility — each raises a set of potential practical and financial dilemmas. But some ethical concerns are also at play, some of which are rarely recognized as values-based barriers to the use of PHRs. Recognizing these ethical issues, and addressing them explicitly in PHR design and policy making, would help PHRs to achieve their promise. 相似文献
885.
Abstract: This paper describes the application of microsphere vapor sensing arrays to the detection of ignitable liquid (IL) vapors as both pure vapors and as residues (ILRs) on simulated fire debris samples. The temporal fluorescence response profile of the microsphere array generated a reproducible pattern unique to each analyte that could be used to classify subsequent sensor responses. This system, together with a support vector machine pattern recognition algorithm, was used to address several different IL and ILR classification scenarios. High classification accuracy (98%) was maintained over more than 200 vapor responses and the array was able to identify ILs when presented to the pattern classification algorithm within a dataset containing 11 other volatile compounds. Both burned and unburned IL treated samples were classified correctly greater than 97% of the time. These results indicate that microsphere vapor sensing arrays may be useful for the rapid identification of ILs and ILRs. 相似文献
886.
William J. Minett M.S. Tara L. Moore Ph.D. Matthew P. Juhascik Ph.D. Henry M. Nields M.D. Ph.D. Mindy J. Hull M.D. 《Journal of forensic sciences》2010,55(5):1319-1325
Abstract: The relationship between postmortem concentrations of morphine and co‐detected psychoactive drugs in fatal overdoses is examined. Morphine and other drugs were detected in 161 medicolegal autopsy cases. Subsets of these morphine‐positive cases based on drug class were established, including opioids, antidepressants, ethanol, benzodiazepines, and “other.” Each subset was split into high or low concentration groups based on median drug concentrations. Morphine concentrations of the [high] and [low] groups were compared, with no significant difference in morphine concentration identified in the opioid, ethanol, or benzodiazepine subsets. The “other” drug class was too heterogeneous for statistical assessment. Morphine concentrations did show a significant direct relationship (p = 0.01) with antidepressants, namely increased concentrations of antidepressant drugs are associated with an increased concentration of morphine. This trend probably remains even after excluding cocaine‐positive cases. The unsuspected finding that postmortem concentrations of antidepressants positively correlate with morphine levels may be important in the treatment of depression in drug addicts. 相似文献
887.
Anthony Matthew 《Political studies》2000,48(4):724-744
The claims made by Bougainville's secessionist leaders correspond with five theoretical perspectives on the morality of secession – based, respectively, on notions of political consent, national identity, cultural preservation, distributive justice and territorial title. Each is tackled in turn, as a means to both assessing the justness of the Bougainvillean case, while also testing the limits of applicability of the moral perspectives themselves. Overall, it is concluded that the complexities of the Bougainville/Papua New Guinea case militate against outright separation. Rather, a balanced resolution of injustices is more likely to be attained by modifications to institutions and patterns of distribution within the existing state. Furthermore, this highly complex case throws up important challenges from which normative theory can profitably learn. 相似文献
888.
Little is known about law enforcement agencies with responsibility for fish, wildlife, and natural resource protection. Traditional conceptions of fish and wildlife police associate these officers almost entirely with fishing and hunting activities. The relative scarcity of academic literature regarding fish and wildlife police agencies results in a lack of understanding about their role in the criminal justice system in general. The current study seeks to contribute to the limited existing literature by examining conservation policing in Florida, a state not yet studied in this context, by analyzing some 2,910 field events. Findings indicate that officers devote a considerable portion of their attention to traditional law enforcement activities in addition to the type of enforcement customarily associated with fish and wildlife law enforcement. 相似文献
889.
One of the more recent developments in historiography has been the emergence of 'new imperial history'. The articles within this special edition of the History of the Family offer examples of how some historians have dealt with the histories of both empires and families. 相似文献
890.
Herder M 《Annals of health law / Loyola University Chicago, School of Law, Institute for Health Law》2009,18(2):187-229, 8 p. preceding i
This article addresses the barriers to personalized medicine, focusing on the burgeoning field of biomarkers research. The author begins by framing intellectual property issues as more than a product of industry incentives and suggests that these issues are deeply entangled with other barriers facing personalized medicine such as regulatory framework deficiencies. The author proposes a set of future research questions to more fully define the barriers to biomarkers research and to uncover which corrective measures may be effective. The author concludes by recommending an integration of regulatory and patent reforms, with a call to action by scholars, scientists, representatives of the biopharmaceutical industry, and policy-makers. 相似文献