全文获取类型
收费全文 | 1934篇 |
免费 | 62篇 |
专业分类
各国政治 | 162篇 |
工人农民 | 59篇 |
世界政治 | 112篇 |
外交国际关系 | 64篇 |
法律 | 1305篇 |
中国政治 | 10篇 |
政治理论 | 273篇 |
综合类 | 11篇 |
出版年
2020年 | 35篇 |
2019年 | 38篇 |
2018年 | 53篇 |
2017年 | 67篇 |
2016年 | 62篇 |
2015年 | 32篇 |
2014年 | 46篇 |
2013年 | 223篇 |
2012年 | 50篇 |
2011年 | 73篇 |
2010年 | 45篇 |
2009年 | 46篇 |
2008年 | 55篇 |
2007年 | 55篇 |
2006年 | 55篇 |
2005年 | 55篇 |
2004年 | 53篇 |
2003年 | 62篇 |
2002年 | 49篇 |
2001年 | 64篇 |
2000年 | 53篇 |
1999年 | 49篇 |
1998年 | 17篇 |
1997年 | 16篇 |
1996年 | 21篇 |
1995年 | 12篇 |
1994年 | 14篇 |
1993年 | 13篇 |
1992年 | 29篇 |
1991年 | 32篇 |
1990年 | 37篇 |
1989年 | 38篇 |
1988年 | 35篇 |
1987年 | 26篇 |
1986年 | 35篇 |
1985年 | 28篇 |
1984年 | 20篇 |
1983年 | 18篇 |
1982年 | 13篇 |
1981年 | 22篇 |
1980年 | 12篇 |
1979年 | 20篇 |
1978年 | 22篇 |
1977年 | 16篇 |
1973年 | 11篇 |
1971年 | 18篇 |
1970年 | 17篇 |
1969年 | 12篇 |
1968年 | 17篇 |
1967年 | 12篇 |
排序方式: 共有1996条查询结果,搜索用时 15 毫秒
71.
O. H. Swank 《Public Choice》1993,75(4):339-356
This paper presents popularity function estimates for U.S. presidents which are based on a model in which voters' evaluations reflect an understanding of partisan reputations for differing policies.I am indebted to J.C. Siebrand, F.A.A.M. van Winden and an anonymous referee for many useful suggestions. 相似文献
72.
Postmortem redistribution of morphine and its metabolites 总被引:2,自引:0,他引:2
The postmortem redistribution of morphine, morphine-3-glucuronide, morphine-6-glucuronide and total morphine was assessed in 40 heroin-related deaths. In blood taken from subclavian, heart, and femoral regions, concentrations of morphine and its metabolites were similar. While there was a trend for higher concentrations in heart blood, when compared with femoral or subclavian blood, this was not significant. There was also no significant difference in concentrations between admission and autopsy blood in which the postmortem interval was on average 59 h. From our observations, significant postmortem redistribution of morphine and its metabolites seems unlikely. 相似文献
73.
Decomposition studies were conducted to determine differences in rates and patterns of decomposition of carcasses hanging and exposed on the surface of the soil. These studies were conducted between 17 October and 17 December 1997 inside of Diamond Head Crater on the island of Oahu, Hawaii. The animal model was the domestic pig. Sus scrofa. The rate of biomass removal from the hanging carcass was significantly slower than that observed for the control carcass during the bloat and decay stages of decomposition. Internal temperatures for the control carcass were elevated above the ambient air temperatures during the earlier stages of decomposition (bloated and decay), while those recorded for the hanging carcass approximated the ambient air temperatures. There was a greater diversity of arthropod species recorded and numbers of individuals observed were higher for the control carcass. A significant site of arthropod activity was observed on the surface of the soil immediately under the hanging carcass and this became the primary site of arthropod activity as decomposition progressed. 相似文献
74.
75.
76.
Kapustin AV Tomilin VV Ol'khovnik VP Panfilenko OA Serebriakova VG 《Sudebno-meditsinskaia ekspertiza》2000,43(5):11-13
The philosophy of evaluating the need of a victim in extra care is discussed. The method for evaluating the need in transport vehicles for the victim is described in detail. Legislative documents which help solve such problems are cited, including those used by committees of forensic medical evaluations. 相似文献
77.
Distributive and Procedural Justice in Seven Nations 总被引:1,自引:0,他引:1
The paper examines the impact of distributive justice and procedural justice variables on judgments in seven countries (Bulgaria, France, Hungary, Poland, Russia, Spain, and the United States). Subjects were presented with each of two experimental vignettes: one in which the actor unsuccessfully appeals being fired from his job and one in which the actor unsuccessfully goes to an employment agency to seek a job; they were asked to rate the justness of the outcome and how fairly the actor had been treated. The vignettes manipulated deservingness and need of the actor (distributive justice factors) and impartiality and voice in the hearing (procedural justice factors). Four hypotheses were tested: first, a distributive justice hypothesis that deservingness would be more important than need in these settings; second, a procedural justice hypothesis that the importance of voice and impartiality vary depending on the nature of the encounter and the forum in which it is resolved; third, because of their recent socialist experience, Central and Eastern European respondents make greater use of need information and less use of deservingness information than Western respondents; and fourth, that distributive justice and procedural justice factors interact. The distributive justice hypothesis is supported in both vignettes. The procedural justice hypothesis receives some support. Impartiality is more important in the first vignette and voice is more important in the second vignette. The interaction hypothesis was not supported in the first vignette, but does receive some support in the second vignette. The cultural hypothesis is not supported in either vignette. The implications for distributive and procedural justice research are discussed. 相似文献
78.
Gotohda T Tokunaga I Kubo S Morita K Kitamura O Eguchi A 《Forensic science international》2000,113(1-3):233-238
Toluene, an abused substance in Japan, is a neurotoxic chemical that has been shown to have neurobehavioral and electrophysiological effects. In previous work, both acute and chronic effects of toluene on cells have been studied extensively. However, although glial cells are thought to play an important role in the survival of neurons in the brain, the effect of toluene on glial cell function has not yet been characterized. To elucidate this, the effect of toluene inhalation on astrocytes in rat brain was examined. Toluene exposure (1500 ppm for 4 h on 4-10 days) augmented glial fibrillary acidic protein (GFAP) immunoreactivity, particularly in the hippocampus and cerebellum. Quantitative analysis showed that toluene inhalation markedly enhanced GFAP expression in the hippocampus and cerebellum. In both regions, proliferating cell nuclear antigen (PCNA) showed no obvious changes, but glutamine synthetase (GS)-immunoreactive cells were markedly increased by toluene exposure. Thus, the elevation of GFAP expression was induced by astrocyte activation rather than by cell proliferation. If toluene exposure activates astrocytes, astrocytes may play a role in the neurophysiological changes observed in toluene intoxication. A neurotrophic factor, basic fibroblast growth factor (b-FGF) was observed immunohistochemically in the capillary vessel walls in the hippocampus and the cerebellum of toluene-intoxicated rats. Basic-FGF may have induced GFAP expression both in the hippocampus and the cerebellum. So, other neurotrophic factors may affect the difference of GFAP elevation between the hippocampus and the cerebellum. These differences may relate to neurobehavioral function of each brain part after toluene exposure. 相似文献
79.
80.
Katherine O’Donnell 《Journal of Gender Studies》2019,28(7):789-801
ABSTRACTThis article focuses on the gendered and nationalist rhetorical strategies Mary Wollstonecraft used in her work The Vindication of the Rights of Man which was written as an open letter of response to Edmund Burke's Reflections on the Revolution in France . While a number of scholars note Wollstonecraft’s adoption of a masculine voice in her systematic feminizing of Burke, this article also pays attention to the ways in which Wollstonecraft impugns Burke with the taints of being crypto-Catholic, Irish, and quasi-French. We notice how Wollstonecraft’s masculine voice is rational, combative, righteously passionate, middle-class, patriotically English and critically Protestant. We compare the fashioning of Wollstonecraft’s voice with contemporary political caricatures of John Bull and the cartoon depictions of Edmund Burke that appeared as Wollstonecraft was composing her VRM. Wollstonecraft’s VRM gained her considered attention and her critique of Burke’s character, (and what this article claims is her misreading of his aesthetic treatise), have been remarkably influential even to the present day. The characteristics of the distinct voice created in Wollstonecraft’s first Vindication are also evident in her second and more famous Vindication of the Rights of Woman. However, the rhetorical commitments entailed in Wollstonecraft’s public voice created challenges for her arguments in the second Vindication that demand careful attention. 相似文献