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   3694篇
  免费   104篇
各国政治   340篇
工人农民   89篇
世界政治   405篇
外交国际关系   263篇
法律   1412篇
中国共产党   1篇
中国政治   24篇
政治理论   1224篇
综合类   40篇
  2023年   10篇
  2022年   16篇
  2021年   33篇
  2020年   61篇
  2019年   64篇
  2018年   110篇
  2017年   125篇
  2016年   129篇
  2015年   86篇
  2014年   99篇
  2013年   648篇
  2012年   92篇
  2011年   104篇
  2010年   90篇
  2009年   131篇
  2008年   157篇
  2007年   153篇
  2006年   106篇
  2005年   115篇
  2004年   117篇
  2003年   92篇
  2002年   100篇
  2001年   75篇
  2000年   72篇
  1999年   74篇
  1998年   65篇
  1997年   57篇
  1996年   48篇
  1995年   59篇
  1994年   50篇
  1993年   47篇
  1992年   34篇
  1991年   51篇
  1990年   29篇
  1989年   45篇
  1988年   34篇
  1987年   38篇
  1986年   51篇
  1985年   18篇
  1984年   32篇
  1983年   32篇
  1982年   35篇
  1981年   22篇
  1980年   28篇
  1979年   19篇
  1978年   23篇
  1977年   17篇
  1976年   20篇
  1974年   23篇
  1973年   12篇
排序方式: 共有3798条查询结果,搜索用时 575 毫秒
131.
Hacking trauma is prevalent in forensic cases involving genocide and dismemberment, but research into the identification of this type of trauma is lacking. The present study examines characteristics of hacking and blunt force skeletal trauma in order to determine if there is a point at which blunt force trauma becomes distinguishable from hacking trauma. Ten implements with a range of blade angles (i.e., the striking surface of the implement) were used in conjunction with a controlled-force hacking device to impact 100 limb bones of white-tailed deer (Odocoileus virginianus). Observations of the trauma included the occurrence and degree of fragmentation, the entrance widths of the impacts, and composite scores of six hacking characteristics, especially the distinctive V-shaped kerf. ANOVA tests and regression analyses were used to assess the relationships between these characteristics and the blade angles. A significant relationship (p-value = 0.011) was found between the composite hacking scores and the blade angles, indicating that blunt force and hacking trauma can be distinguished. The entrance widths of the impacts exhibited a significant relationship with the blade angles (p-value = 0.037). There was also a significant relationship between the visibility of a V-shaped kerf in the bones (p-value = 0.003), with visibility decreasing around the 60° blade angle. These data should assist in establishing guidelines to differentiate hacking and blunt force skeletal trauma in cases where the implement is on a spectrum between sharp and blunt.  相似文献   
132.
What politicians devote attention to, is an important question as political attention is a precondition of policy change. We use an experimental design to study politicians’ attention to incoming information and deploy it among large samples of elected politicians in three countries: Belgium, Canada, and Israel. Our sample includes party leaders, ministers and regular members of parliament. These elites were confronted with short bits of summary information framed in various ways and were then asked how likely it was that they would read the full information. We test for three frames: conflict, political conflict, and responsibility. We find that framing moderates the effect of messages on politicians’ attention to information. Politicians react more strongly (i.e., they devote more attention) to political conflict frames than to non-political conflict frames and they react stronger to political responsibility attributions than to non-political responsibility attributions. Conflict frames attract more attention than consensus frames only from members of opposition parties. Political conflict frames attract more attention from government party politicians. These effects occur largely across issues and across the three countries.  相似文献   
133.
This study analyzes the short‐term impact of an exogenous, positive income shock on caregivers’ subjective well‐being (SWB) in Malawi using panel data from 3,365 households targeted to receive Malawi's Social Cash Transfer Program that provides unconditional cash to ultra‐poor, labor‐constrained households. The study consists of a cluster‐randomized, longitudinal design. After the baseline survey, half of these village clusters were randomly selected to receive the transfer and a follow‐up was conducted 17 months later. We find that the short‐term impact of household income increases from the cash transfer leads to substantial SWB gains among caregivers. After a year's worth of transfers, caregivers in beneficiary households have higher life satisfaction and are more likely to believe in a better future. We examine whether program impacts on consumption, food security, resilience, and hopefulness could explain the increase in SWB but do not find that any of these mechanisms individually mediate our results.  相似文献   
134.
135.
When a policy sector is confronted with a relatively strong and steep decline in legitimacy, we speak of an institutional crisis. We know little about the causes or consequences of these crises. This article explores how institutional crises are managed. It focuses on the effects of management strategies observed in a case study of an institutional crisis in the Netherlands. While we found that policy elites displayed a tendency to maintain the status quo of a policy sector, we also found that the effectiveness of their response strategies was negated by the counter‐response it evoked among freshly energized interest, advocacy and citizen groups. We conclude that the resolution of an institutional crisis is inherently contested. Based on our case study, we develop a theoretical model and formulate propositions that may help to improve our understanding of institutional crisis management.  相似文献   
136.
Crime and subsequent imprisonment reduces men's chances on the marriage market and increases their divorce risk, but existing research, with a few notable exceptions, is silent about the underlying mechanisms driving these effects. This article studies the effect of home confinement under electronic monitoring as a noncustodial alternative to imprisonment on the risk of relationship dissolution and being single, thereby distinguishing between effects of incarceration and of committing crime. We study a policy that expanded the use of electronic monitoring to address nonrandom selection into electronic monitoring instead of in prison. Results from a sample of 4,522 men show that home confinement under electronic monitoring significantly and persistently lowers the risk both of being single and of becoming single during the first five years following conviction. The results show that one of the tools that could promote decarceration trends also secures better relationship outcomes of convicted men.  相似文献   
137.
Families using the Housing Choice Voucher Program rarely experience large gains in neighborhood or school quality when compared with unassisted poor renters. Research on housing mobility programs has reached mixed conclusions about whether vouchers can improve neighborhood and school quality, especially in the long term. We revisit these findings using new data from the partial remedy to the Thompson v. HUD desegregation case in Baltimore, known as the Baltimore Housing Mobility Program (BHMP). Through targeted vouchers, intensive counseling and innovative policy features, the BHMP helped families move to low-poverty, nonsegregated neighborhoods with higher performing school districts. We examine residential outcomes for the first 1,800 families that moved through the program for a period of up to 9 years. We find that BHMP families moved to more integrated and affluent neighborhoods, in school districts with more qualified teachers and fewer poor students—and most families stayed in these neighborhoods beyond their initial lease-up period. Eventually, a small proportion of families moved to neighborhoods that are less white, but still significantly less poor and less segregated than their original communities. We interpret these findings in light of past mobility programs and discuss policy implications for the Housing Choice Voucher Program.  相似文献   
138.
This work examines how the American role in the Vietnam War has been portrayed in standard college- and university-level textbooks dealing with American foreign policy. It argues that this topic has been presented in a manner that leaves an incomplete understanding. This conclusion is based on scholarship that has been available for decades as well as much Cold War historiography that has appeared since 1975. I conclude that the distortions need to be addressed for several reasons. Their propagation produces bad scholarship, gratuitously alienates Americans from their institutions of government, and justifies anti-Americanism and authoritarianism elsewhere.  相似文献   
139.
While the effects of simulation-based courses on the knowledge of participating students may be marginal in relation to standard lecture and discussion-based courses, this article argues that the greatest leverage is gained by increasing participating students’ level of interest in the subject of study and in politics more broadly. Participants tend to become increasingly absorbed in their roles and in the politics of the institutions at the center of the simulation. To better consider this possibility, we conducted a survey of students participating in the 2015 Mid-Atlantic European Union Simulation and of appropriate control populations. The survey results indeed suggest that, much more than simply acquiring knowledge about the EU, the simulation experience serves to generate more robust interest in the subject of study.  相似文献   
140.
This analysis allows readers to confront for themselves the 27 September 1945 meeting between the Shōwa Emperor and General Douglas MacArthur, as recently documented by Japan’s Imperial Household Agency. It also introduces readers to a long-standing debate amongst Japanese scholars that has received no attention in English-language literature. The debate centres on the question as to whether the emperor offered at this meeting to take responsibility for the war fought in his name. This analysis offers its own conclusions and suggests that the emperor in all probability offered to take responsibility for the war.  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