全文获取类型
收费全文 | 5754篇 |
免费 | 122篇 |
专业分类
各国政治 | 241篇 |
工人农民 | 227篇 |
世界政治 | 458篇 |
外交国际关系 | 211篇 |
法律 | 3595篇 |
中国政治 | 49篇 |
政治理论 | 1078篇 |
综合类 | 17篇 |
出版年
2021年 | 41篇 |
2020年 | 70篇 |
2019年 | 103篇 |
2018年 | 131篇 |
2017年 | 118篇 |
2016年 | 122篇 |
2015年 | 72篇 |
2014年 | 118篇 |
2013年 | 590篇 |
2012年 | 140篇 |
2011年 | 151篇 |
2010年 | 122篇 |
2009年 | 138篇 |
2008年 | 167篇 |
2007年 | 155篇 |
2006年 | 140篇 |
2005年 | 130篇 |
2004年 | 155篇 |
2003年 | 124篇 |
2002年 | 102篇 |
2001年 | 310篇 |
2000年 | 277篇 |
1999年 | 193篇 |
1998年 | 79篇 |
1997年 | 79篇 |
1996年 | 53篇 |
1995年 | 54篇 |
1994年 | 48篇 |
1993年 | 38篇 |
1992年 | 121篇 |
1991年 | 139篇 |
1990年 | 131篇 |
1989年 | 126篇 |
1988年 | 113篇 |
1987年 | 125篇 |
1986年 | 100篇 |
1985年 | 95篇 |
1984年 | 96篇 |
1983年 | 83篇 |
1982年 | 57篇 |
1981年 | 73篇 |
1980年 | 34篇 |
1979年 | 73篇 |
1978年 | 43篇 |
1975年 | 37篇 |
1974年 | 49篇 |
1973年 | 54篇 |
1972年 | 40篇 |
1971年 | 34篇 |
1970年 | 29篇 |
排序方式: 共有5876条查询结果,搜索用时 0 毫秒
901.
Freeman MD Dobbertin K Kohles SS Uhrenholt L Eriksson A 《Forensic science international》2012,222(1-3):228-233
Serious head and neck injuries are a common finding in fatalities associated with rollover crashes. In some fatal rollover crashes, particularly when ejection occurs, the determination of which occupant was driving at the time of the crash may be uncertain. In the present investigation, we describe the analysis of rollover crash data from the National Automotive Sampling System-Crashworthiness Data System for the years 1997 through 2007 in which we examined the relationship between a serious head and neck injury in an occupant and a specified degree of roof deformation at the occupant's seating position. We found 960 occupants who qualified for the analysis, with 142 deaths among the subjects. Using a ranked composite head and neck injury score (the HNISS) we found a strong relationship between HNISS and the degree of roof crush. As a result of the analysis, we arrived at a predictive model, in which each additional unit increase in HNISS equated to an increased odds of roof crush as follows: for ≥8cm of roof crush compared with <8cm by 4%, for ≥15cm of roof crush compared to <8cm by 6% and for ≥30cm of roof crush compared to <8cm by 11%. We describe two hypothetical scenarios in which the model could be applied to the real world investigation of occupant position in a rollover crash-related fatality. 相似文献
902.
In this study, we examine citizens?? perceptions of police?Ccommunity relationships in India. More specifically, in this exploratory study, we examine the extent to which factors such as general satisfaction with police services, police professionalism, feeling of safety, and perception of police integrity all explain the public confidence in police?Ccitizen relationships. Those who are generally satisfied with police like to work with police and view police?Ccommunity relationships positively. Further, we find that those who feel police are fair in dealing with citizens, irrespective of social status, and those who feel more safe in their communities are those who are most willing to work with police. 相似文献
903.
New data show that between 1982 and 2007, in over 60 countries governments were linked to and cooperated with informal armed groups within their own borders. Given the prevalence of these linkages, we ask how such links between governments and informal armed groups influence the risk of repression. We draw on principal-agent arguments to explore how issues of monitoring and control help understanding of the impact of militias on human rights violations. We argue that such informal agents increase accountability problems for the governments, which is likely to worsen human rights conditions for two reasons. First, it is more difficult for governments to control and to train these militias, and they may have private interests in the use of violence. Second, informal armed groups allow governments to shift responsibility and use repression for strategic benefits while evading accountability. Using a global dataset from 1982 to 2007, we show that pro-government militias increase the risk of repression and that the presence of militias also affects the type of violations that we observe. 相似文献
904.
K. Amber Curtis 《国际相互影响》2014,40(3):402-430
When and how will personal financial (aka “pocketbook”) concerns drive citizens’ political decisions? Scholars remain puzzled by the mismatch between the expectation that pocketbook voting should occur and the reality that, according to most findings, it usually does not. Using original survey data collected immediately after Iceland’s second “Icesave” referendum (2011), I first report the results of an embedded experiment that successfully evokes greater pocketbook concern. Next, I analyze the determinants of retrospective pocketbook evaluations, showing that priming effects are conditioned by political sophistication such that high sophisticates are among the most likely to report negative economic assessments. I then turn to the consequences of these egocentric views for government approval. Mediation analysis confirms a significant indirect effect, suggesting that subjective pocketbook evaluations exert a strong influence on political attitudes that has been hidden in prior work. Results illuminate the contextual, cognitive, and causal circumstances under which pocketbook effects transpire and suggest new ways in which self-interest might matter for attitudes toward international political economy issues. 相似文献
905.
Conventional wisdom suggests that dissident groups use terrorism when they face an overwhelmingly more powerful state, yet attacks in developing countries have predominated in the post-Cold War era, suggesting that terrorism is an increasingly weak state phenomenon. Cross-national studies of terrorism find mixed results for how common measures of state capacity influence terrorism. We argue that these indeterminate findings are due in part to a partial understanding of both what constitutes state capacity and how different aspects of state strength or weakness relate to the propensity of groups to use terrorism. We decompose state capacity into two dimensions that we theorize are particularly relevant to dissident groups: military capacity, or the ability to project conventional military force, and bureaucratic/administrative capacity. Our analysis supports the claim that terrorist attacks are more frequently targeted at states with large, technologically sophisticated militaries but less frequently targeted at states with higher bureaucratic and administrative capacity. We also compare two militarily capable states, France and Russia, that have had different recent experiences with terrorism to help illustrate the causal mechanisms involved. Evidence from our models and cases suggest that states can be capable in different ways, and these various capabilities create differing incentives for using terror as a strategic and tactical tool. 相似文献
906.
This paper argues that religion influences the ways that people think and speak about corruption, typically leading to condemnation. However, it is also argued that, in a systemically corrupt country, such condemnation is unlikely to influence actual corrupt behaviour. Based on fieldwork in India, the paper finds that existing anti-corruption policies based on a principal-agent understanding of corruption, even if they incorporate religious organisations and leaders, are unlikely to work, partly because people consider “religion” to be a discredited entity. Instead, the paper argues that if corruption were to be seen as a collective action problem, anti-corruption practice would need significant rethinking. Despite its current lack of influence, revised policies and practices may see a role for religion. 相似文献
907.
Marc L. Sprouse B.S. Nicole R. Phillips Ph.D. Mark F. Kavlick B.S. Rhonda K. Roby Ph.D. M.P.H. 《Journal of forensic sciences》2014,59(4):1049-1056
The quantity of mitochondrial DNA (mtDNA) template added for amplification and subsequent dye terminator reactions is critical for obtaining quality sequence data. Validation of a human mtDNA real‐time quantitative PCR (qPCR) assay demonstrated its high degree of reproducibility and precision as well as an extremely sensitive threshold of detection (0.0001 pg/μL or approximately six human mtDNA copies/μL). A study of 35 nonprobative bone and teeth evidence samples revealed that 20 pg of mtDNA template is recommended for successful HV1 and HV2 sequence analysis; however, as little as 0.013 pg can generate a full mtDNA profile when using enhanced amplification reactions. The assay can also detect PCR inhibition and is useful for identifying samples that may benefit from re‐purification. Overall, the assay is an excellent method to quantify mtDNA and is useful for determining the best analytical approach for successful sequencing. 相似文献
908.
Achas K. Burin 《The Modern law review》2014,77(6):994-1008
In Haxton v Philips Electronics the Court of Appeal considered whether a widow could recover the diminution in value of her dependency claim following the defendant's tortious reduction of her life expectancy. The note outlines the development of the common law, demonstrating that Haxton is novel but not unorthodox, and tests whether Haxton's principles can provide a sound foundation for future cases. Positing three hypothetical scenarios, it argues that the disparity in outcome, rather than indicating a lack of unifying principle, as was suggested in Jobling v Associated Dairies, may be explained by combining Austin's division between primary and secondary rights with Gardner and Stevens' contributions as to how they are protected. Restitutio in integrum requires consideration of the reasons and values underlying the right in question and these are discernible in the jurisprudence. The note also considers whether Haxton could have been decided on the basis that a defendant should not profit from its own wrongdoing. 相似文献
909.
Matthew DeMichele Nathan C. Lowe Brian K. Payne 《American Journal of Criminal Justice》2014,39(2):292-314
The purpose of this paper is to use criminological theories to explain chronic drunk driving. There is little criminological research explaining recidivist drunk driving with criminological theories. Instead, most researchers posit that repeat drunk driving is explained as a byproduct of substance abuse. Although substance abuse is likely correlated to chronic drunk driving, theoretical explanations need to go further to understand a broader set of social and psychological predictors. Factor analysis and linear regression techniques are used to estimate the relationship between items from two assessment instruments with a number of drunken driving offenses. The sample consists of nearly 3,500 individuals on probation and parole in a Southwestern state. The findings support our contention that criminological frameworks are helpful to understand chronic DUI. We found significant results for volatility, antisocial friends, teenage deviance, and negative views of the law, while controlling for age, gender, marital status, and race. DUIs are a serious problem for the criminal justice system and understanding the individual level correlates of repetitive DUI is crucial for policy development. Further, chronic DUI offers criminologists an opportunity to determine the ability of criminological theories to explain this type of behavior. 相似文献
910.
Brandon K. Applegate 《American Journal of Criminal Justice》2014,39(1):59-76
Several studies have found that offenders do not always perceive prison to be a harsher sanction than community-based punishments. Moreover, the literature shows that white offenders tend to estimate prison to be relatively more severe than do black offenders. The present study develops and tests eight possible explanations for the observed racial gap in perceptions. Relying on survey data from inmates in a large urban jail to establish sentencing preferences for black and white inmates, multivariate analyses show that the racial gap was attenuated but not eliminated by the explanations. This persistent racial difference in opinions of sanction severity is consistent with differential perceptions of criminal justice system fairness and merits additional research. The race gap has implications for theories on the effects of incarceration as well as sentencing practice. 相似文献