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   1714篇
  免费   515篇
各国政治   383篇
工人农民   57篇
世界政治   218篇
外交国际关系   93篇
法律   765篇
中国政治   35篇
政治理论   645篇
综合类   33篇
  2022年   1篇
  2021年   29篇
  2020年   36篇
  2019年   156篇
  2018年   95篇
  2017年   141篇
  2016年   153篇
  2015年   136篇
  2014年   122篇
  2013年   553篇
  2012年   94篇
  2011年   92篇
  2010年   110篇
  2009年   47篇
  2008年   71篇
  2007年   43篇
  2006年   42篇
  2005年   24篇
  2004年   29篇
  2003年   19篇
  2002年   19篇
  2001年   6篇
  2000年   16篇
  1999年   13篇
  1998年   10篇
  1997年   15篇
  1996年   13篇
  1995年   12篇
  1994年   14篇
  1993年   14篇
  1992年   7篇
  1991年   8篇
  1990年   8篇
  1989年   5篇
  1988年   9篇
  1987年   5篇
  1986年   6篇
  1985年   5篇
  1984年   11篇
  1983年   7篇
  1982年   2篇
  1981年   7篇
  1980年   6篇
  1979年   4篇
  1978年   5篇
  1977年   4篇
  1976年   1篇
  1974年   2篇
  1969年   1篇
  1966年   1篇
排序方式: 共有2229条查询结果,搜索用时 23 毫秒
991.
992.
993.
994.
995.
996.
The new Hong Kong Special Administrative Region (HKSAR) held its first election in 1998. Based on data from a post‐election survey, this article charts the pattern of intermediation environments and their impact on electoral participation. An intermediation environment is a network of communicating information or points of view. This study focuses on the environments of primary social networks, secondary associations and the mass media. They are found to be influential in the diffusion of political knowledge and in mobilizing electoral participation. However, the majority of Hong Kong citizens are unembedded in these environments, thereby carrying negative implications for the democratic transition in Hong Kong.  相似文献   
997.
The distinct peer‐based perspectives of deviant normative influence and unstructured/unsupervised socializing with friends contend that adolescents rely on different information when deciding to offend, with the former positing that individuals offend after considering the longer term consequences of behavior, and the latter positing that decisions to offend derive from situational stimuli. We argue that these processes can be organized under a dual‐systems framework of decision making, which leads to the hypothesis that individuals at the edges of impulsivity should be differentially vulnerable to these peer influence processes because of their tendency to rely on only one system of decision making. We use two large data sets to test this hypothesis: a nationally representative sample of adolescents from the AddHealth study (N = ~9,000) and a pooled panel data set of adolescents from the Gang Resistance Education and Training (G.R.E.A.T.) evaluation (N = 1,172). The results of longitudinal negative binomial analyses indicate that normative influence by deviant peers has a stronger effect on delinquency for adolescents with low impulsivity than it does for individuals with high impulsivity. Differences in the informal socializing with peers coefficients are less clear and offer minimal support for our predictions.  相似文献   
998.
The coupling of racial and economic stratification has been found to result in a range of adverse outcomes for youth of color, including disproportionate exposure to violence and victimization. Primary explanations of these patterns, particularly at the micro‐level, have focused on the impact of street culture. In this article, we draw from a multiyear ethnography in Cape Town, South Africa, to offer a theoretical elaboration of the place of culture in contributing to victimization risks among urban minority young men. The study is based on data collected from a sample of 26 young men of color who lived on the Cape Flats between 2003 and 2006. Using grounded theory methods, we suggest the import of unequal access to spatial mobility as a multifaceted means by which culture mediates young men's risks for victimization in disadvantaged communities. We find that transitory mobility—conceptualized as youth's temporary access to cultural spaces outside their segregated residential neighborhoods—is an important source of cultural heterogeneity in townships that can intensify the strength of local social identities and outgroup antipathies directed at those whose mobility is perceived as a cultural threat. Transitorily mobile young men's cultural repertoires are a key facet of street efficacy that can either insulate them from risk or heighten their vulnerabilities. Our findings are suggestive of important sources of variation in young men's victimization outcomes in disadvantaged communities, offering insights about factors that shape risks beyond those linked to the victim–offender overlap in high‐risk settings.  相似文献   
999.
Acetaminophen or paracetamol, a commonly used over‐the‐counter analgesic, is known to elicit severe adverse reactions when taken in overdose, chronically at therapeutic dosage or, sporadically, following single assumptions of a therapeutic dose. Damage patterns including liver damage and, rarely, acute tubular necrosis or a fixed drug exanthema. We present a case of fatal acetaminophen toxicity with postmortem blood concentration 78 μg/mL and unusual clinical features, including a visually striking and massive epidermolysis and rhabdomyolysis, disseminated intravascular coagulation and myocardial ischemia. This case is compared with the most similar previous reports in terms of organ damage, clinical presentation, and cause of death. We conclude that a number of severe patterns of adverse effects to acetaminophen are emerging that were previously greatly underestimated, thus questioning the adequacy of the clinical spectrum traditionally associated with acetaminophen intoxication and leading to the need to review this spectrum and the associated diagnostic criteria.  相似文献   
1000.
Pursuant to the Polish Weapons and Ammunitions Law (Legal Gazette No 53/1999 item 549 with subsequent amendments), air guns with kinetic energy of the fired projectiles below 17 J are not regarded as weapons. The aim of the study was to assess the potential effect of shots caused by projectiles of various mass and structure fired from air guns with kinetic energy below 17 J on human soft tissues. As a model of soft tissue, we used 20% gelatin blocks. After shooting, we measured the depth of gelatin block penetration by pellets fired from various distances and compared these results with autopsy findings. The results demonstrated that examined pneumatic guns may cause serious injuries, including damage to the pleura, pericardium, liver, spleen, kidneys, femoral artery, and thoracic and abdominal aorta. Experiment shown that gelatin blocks do not reflect fully the properties of the human body.  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