首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   5984篇
  免费   143篇
各国政治   254篇
工人农民   229篇
世界政治   501篇
外交国际关系   237篇
法律   3692篇
中国政治   50篇
政治理论   1144篇
综合类   20篇
  2021年   43篇
  2020年   71篇
  2019年   106篇
  2018年   139篇
  2017年   125篇
  2016年   127篇
  2015年   75篇
  2014年   126篇
  2013年   644篇
  2012年   149篇
  2011年   164篇
  2010年   132篇
  2009年   149篇
  2008年   173篇
  2007年   170篇
  2006年   145篇
  2005年   136篇
  2004年   163篇
  2003年   127篇
  2002年   108篇
  2001年   318篇
  2000年   283篇
  1999年   194篇
  1998年   82篇
  1997年   82篇
  1996年   55篇
  1995年   56篇
  1994年   51篇
  1993年   43篇
  1992年   124篇
  1991年   140篇
  1990年   131篇
  1989年   129篇
  1988年   113篇
  1987年   127篇
  1986年   103篇
  1985年   95篇
  1984年   99篇
  1983年   85篇
  1982年   58篇
  1981年   74篇
  1980年   34篇
  1979年   75篇
  1978年   46篇
  1975年   39篇
  1974年   49篇
  1973年   56篇
  1972年   42篇
  1971年   34篇
  1970年   30篇
排序方式: 共有6127条查询结果,搜索用时 31 毫秒
921.
Using stochastic methods we illustrate that the Provisional Irish Republican Army's (PIRA) network is clustered along three primary dimensions: (a) brigade affiliation, (b) whether the member participated in violent activities, and (c) task/role within PIRA. While most brigades tended to foster connections within the brigade (that is, “closure”), the tendency to do so varied across the organization. Members who engaged with violent activities were far more likely to connect with each other; in later periods there is polarization into those who engage in violent activities and those who do not. Across brigades, those who engage in a particular task and role (improvised explosive device [IED] constructor, IED planter, gunman, robber/kidnapper/drug smuggler/hijacker) are more likely to connect with others who do the same task or play the same role than with other members who fulfill other roles. Standard forms of homophily (that is, the tendency to make connections with people who are similar in terms of demography or status) play a very weak role in explaining which members interact with one another. Finally, our analysis illustrates clear patterns of relational change that correspond to changes in the formal structures that PIRA's leadership promoted.  相似文献   
922.
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   
923.
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   
924.
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   
925.
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   
926.
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   
927.
928.
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   
929.
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   
930.
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   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号