全文获取类型
收费全文 | 5427篇 |
免费 | 254篇 |
专业分类
各国政治 | 379篇 |
工人农民 | 193篇 |
世界政治 | 584篇 |
外交国际关系 | 420篇 |
法律 | 2381篇 |
中国政治 | 55篇 |
政治理论 | 1610篇 |
综合类 | 59篇 |
出版年
2023年 | 39篇 |
2022年 | 19篇 |
2021年 | 44篇 |
2020年 | 89篇 |
2019年 | 115篇 |
2018年 | 199篇 |
2017年 | 201篇 |
2016年 | 253篇 |
2015年 | 142篇 |
2014年 | 158篇 |
2013年 | 879篇 |
2012年 | 182篇 |
2011年 | 177篇 |
2010年 | 148篇 |
2009年 | 154篇 |
2008年 | 201篇 |
2007年 | 242篇 |
2006年 | 210篇 |
2005年 | 189篇 |
2004年 | 193篇 |
2003年 | 164篇 |
2002年 | 163篇 |
2001年 | 103篇 |
2000年 | 97篇 |
1999年 | 107篇 |
1998年 | 83篇 |
1997年 | 87篇 |
1996年 | 71篇 |
1995年 | 63篇 |
1994年 | 70篇 |
1993年 | 78篇 |
1992年 | 68篇 |
1991年 | 62篇 |
1990年 | 62篇 |
1989年 | 54篇 |
1988年 | 63篇 |
1987年 | 40篇 |
1986年 | 49篇 |
1985年 | 38篇 |
1984年 | 39篇 |
1983年 | 30篇 |
1982年 | 28篇 |
1981年 | 31篇 |
1980年 | 18篇 |
1979年 | 19篇 |
1978年 | 20篇 |
1977年 | 16篇 |
1976年 | 14篇 |
1975年 | 14篇 |
1974年 | 30篇 |
排序方式: 共有5681条查询结果,搜索用时 15 毫秒
851.
Mona M. Lyne Daniel L. Nielson Michael J. Tierney 《The Review of International Organizations》2009,4(4):407-433
Multilateral development banks (MDBs) dramatically increased social lending for health, education, and safety nets after 1985.
Yet the great powers’ social policy preferences remained relatively static from 1980 to 2000. This contradicts the conventional
view that powerful states control IOs. We argue that highly institutionalized IOs like MDBs require a complete model of possible
member-state coalitions encompassing the preferences of all member states—not just major powers. We develop multiple measures
of state preferences and include all member states in our coalitional model. We evaluate our model and alternatives with an
analysis of more than 10,000 MDB loans from 1980 to 2000. We find that when we include all member states weighted by their
voting shares, principal preferences are significantly related to lending outcomes. 相似文献
852.
853.
Police violence is not uncommon in America, and the risk of civilians' being killed by police is considerably higher here than in similar countries, making it a major public health issue. For Black Americans the risk is significantly higher. In this study, we analyze the political determinants of police killings of Black Americans, with a specific focus on corruption in American states. Our evidence suggests that police can kill Black Americans with impunity because of a lack of accountability—exemplified by corruption—that is largely determined by political influences. Our findings point to ways in which the responsibility for police violence and killings is deeply rooted and influenced by the values of the wider society. 相似文献
854.
Rahi Abouk Scott Adams Bo Feng Johanna Catherine Maclean Michael F. Pesko 《Journal of policy analysis and management》2023,42(4):908-940
E-cigarette taxes are an active area of legislation and have important regulatory implications by proxying e-cigarette accessibility. We examine the effect of e-cigarette taxes on prepregnancy and prenatal smoking using the near-universe of births to mothers conceiving between 2013 and 2019 in the United States. Using fixed effect regressions, we show that e-cigarette taxes increase prepregnancy and prenatal smoking. We also find evidence that e-cigarette taxes reduce prepregnancy and 3rd trimester e-cigarette use. Finally, we show that e-cigarette taxes increase news coverage of e-cigarettes and raise perceptions of risk of e-cigarettes. 相似文献
855.
Michael L. Smith 《Communist and Post》2010,43(4):439-451
This article examines the relationship between social justice norms and the perceived legitimacy of the social stratification system in the Czech Republic. Despite the fact that meritocratic values have remained the dominant part of ideology in the Czech Republic throughout the transformation process, those values have played only a very minor role in fostering evaluations of system legitimacy, such as perceptions of system closure and widespread inequality. This article argues that perceived corruption is the key factor that negatively mediates the relationship between norms of distributive justice and beliefs about social legitimacy, and ultimately plays a major role in reducing the legitimacy of the social stratification system. The main analysis uses a structural equation model based on Czech data from the ISSP Role of Government Survey in 2006. The evidence lends support to the path dependency view of the social transformation process, according to which rampant corruption, which was a core legacy of the market transformation process, continues to shape system legitimacy even in the face of relative economic prosperity of the mid 2000s. 相似文献
856.
857.
858.
859.
Cocaine is an illicit drug frequently encountered by forensic practitioners in driving under the influence of drugs (DUID) casework. Whole blood collected from a suspected drugged driver was found to contain 3.000 mg/L cocaine, 1.600 mg/L benzoylecgonine, and 0.260 mg/L methamphetamine. The high concentration of cocaine, while common in overdose death investigations, is unusual for an impaired driving case. Information from the officer revealed that the motorist swallowed cocaine during the traffic stop. Although a cocaine DUID charge could not be pursued, the blood methamphetamine concentration exceeded the State of Nevada “per se” limit for operating a motor vehicle. The motorist was successfully prosecuted for DUID based on his admission of using methamphetamine prior to driving and the blood methamphetamine result. This case highlights the importance of considering case history when interpreting laboratory results and the application of jurisdictional statutes as an approach to prosecuting suspected drug‐impaired drivers. 相似文献
860.
Shane Darke Ph.D. Johan Duflou M.Med.Path. F.R.C.P.A. Sharlene Kaye Ph.D. Michael Farrell F.R.C.P. F.R.C.Psych. 《Journal of forensic sciences》2019,64(5):1421-1426
Psychostimulant use is associated with increased stroke risk. To determine the proportion of psychostimulant users among fatal strokes in young adults (15–44 years), all cases were retrieved from the National Coronial Information System (1/1/2009–31/12/2016). A total of 279 cases were identified: hemorrhagic (259), ischemic (8), thrombotic (8), and mycotic (4). Fifty (17.9%) were identified as psychostimulant users. Psychostimulants in blood were detected in 37/45 where toxicology was available, predominantly methamphetamine (32/45). Hemorrhagic strokes in the psychostimulant group were more likely to be intraparenchymal (OR 2.33). Psychostimulant users were less likely to be obese (OR 0.31), but more likely to have a history of tobacco use (OR 2.64). No psychostimulant user had a previous stroke history, was gravid/postpartum, or diagnosed with cerebral vasculitis or endocarditis. The work illustrates the substantial role of psychostimulant use in fatal strokes among young adults. In cases of hemorrhagic stroke among young adults, psychostimulant use should be considered. 相似文献