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   416篇
  免费   15篇
各国政治   35篇
工人农民   55篇
世界政治   16篇
外交国际关系   16篇
法律   214篇
中国政治   5篇
政治理论   89篇
综合类   1篇
  2023年   2篇
  2021年   1篇
  2020年   6篇
  2019年   11篇
  2018年   11篇
  2017年   17篇
  2016年   7篇
  2015年   9篇
  2014年   14篇
  2013年   55篇
  2012年   18篇
  2011年   14篇
  2010年   10篇
  2009年   20篇
  2008年   28篇
  2007年   23篇
  2006年   22篇
  2005年   12篇
  2004年   15篇
  2003年   16篇
  2002年   12篇
  2001年   12篇
  2000年   7篇
  1999年   6篇
  1998年   6篇
  1997年   8篇
  1996年   8篇
  1995年   5篇
  1994年   3篇
  1993年   6篇
  1992年   4篇
  1991年   3篇
  1990年   3篇
  1989年   3篇
  1987年   3篇
  1986年   1篇
  1985年   2篇
  1984年   1篇
  1983年   2篇
  1982年   4篇
  1981年   4篇
  1980年   4篇
  1979年   2篇
  1978年   4篇
  1977年   3篇
  1976年   2篇
  1973年   1篇
  1967年   1篇
排序方式: 共有431条查询结果,搜索用时 15 毫秒
21.
Baer  Werner 《Public Choice》1996,88(3-4):365-379
Public Choice - This paper attempts to show that over time most economists' view of the role of the state in Latin America's economies has changed considerably. In the 1950s and 1960s state...  相似文献   
22.
23.
On a wintry day a 29-year-old woman was found dead beside her car showing head injuries and signs of hypothermia. Several empty packets of sedative and hypnotic drugs were lying inside the car. Toxicological analysis revealed the presence of flunitrazepam (heart blood of the left and right chamber 0.033 mg/L each), norflunitrazepam (left heart blood 0.029 mg/L, right heart blood 0.027 mg/L), 7-amino-flunitrazepam (left heart blood 0.090 mg/L, right heart blood 0.104 mg/L), diazepam (left heart blood 0.395 mg/L, right heart blood 0.386 mg/L), nordazepam (left heart blood 0.112 mg/L, right heart blood 0.115 mg/L) and temazepam (left heart blood 0.034 mg/L, right heart blood 0.033 mg/L). Neither alcohol nor other drugs were found. It was concluded that benzodiazepine intake led to a disturbance of consciousness. Whether the woman died in this situation due to the icy temperature as a result of hypothermia or whether she died or would have died solely due to benzodiazepine overdosage could not be clarified.  相似文献   
24.
We present a case of an accidental autoerotic death involving the inhalation of a propane-butane gas mixture, also known as LPG (liquefied petroleum gas). A 19-year-old male was found dead in supine position in his bed in a residential accommodation one day after he was last seen alive. On a personal computer at the end of the bed, a pornographic movie was still running. On his left shoulder, an empty rubber balloon and on the bedside 2 empty "Kisag-Gas" cartridges were found. Toxicologic investigations revealed an intoxication with propane and butane, together with a recent consumption of cannabis. This case report compares the toxicologic findings with other recently published cases, and the theories of the toxic effects are discussed.  相似文献   
25.
Despite the recent surge in society's interest in human violence, relatively few studies have been conducted examining the closely related phenomenon of animal cruelty. Although several researchers have begun to identify some of the correlates of animal cruelty, few have attempted to understand how differences in the backgrounds of rural and urban residents have led to their abuse of animals. Using survey data from 261 inmates, the authors investigate how demographic, familial differences and species type have contributed to the frequency of acts of animal cruelty. In general, early exposure to animal abuse is a strong predictor of the subsequent behavior. However, rural inmates learned to be cruel by watching family members exclusively, whereas urban inmates learned from family members and friends. Moreover, urban inmates chose dogs, cats, and wild animals as their target animals; however, rural inmates chose only cats.  相似文献   
26.
Few studies have examined how animal cruelty is learned within a specific social context among incarcerated individuals. Using data from 261 inmates, this study specifically addressed how demographic characteristics and childhood experiences with animal abuse may have affected the recurrence and onset of childhood and adolescent cruelty as a learned behavior. Multiple regression analyses revealed that inmates who experienced animal cruelty at a younger age were more likely to demonstrate recurrent animal cruelty themselves. In addition, respondents who observed a friend abuse animals were more likely to hurt or kill animals more frequently. Finally, inmates who were younger when they first witnessed animal cruelty also hurt or killed animals at a younger age.  相似文献   
27.
Degradation of human DNA extracted from forensic stains is, in most cases, the result of a natural process due to the exposure of the stain samples to the environment. Experiences with degraded DNA from casework samples show that every sample may exhibit different properties in this respect, and that it is difficult to systematically assess the performance of routinely used typing systems for the analysis of degraded DNA samples. Using a batch of artificially degraded DNA with an average fragment size of approx. 200 bp a collaborative exercise was carried out among 38 forensic laboratories from 17 European countries. The results were assessed according to correct allele detection, peak height and balance as well as the occurrence of artefacts. A number of common problems were identified based on these results such as strong peak imbalance in heterozygous genotypes for the larger short tandem repeat (STR) fragments after increased PCR cycle numbers, artefact signals and allelic drop-out. Based on the observations, strategies are discussed to overcome these problems. The strategies include careful balancing of the amount of template DNA and the PCR cycle numbers, the reaction volume and the amount of Taq polymerase. Furthermore, a careful evaluation of the results of the fragment analysis and of automated allele calling is necessary to identify the correct alleles and avoid artefacts.  相似文献   
28.
29.
This article explores issues of citizenship and belonging associated with post-Soviet Kazakhstan’s repatriation programme. Beginning in 1991, Kazakhstan financed the resettlement of over 944,000 diasporic Kazakhs from nearly a dozen countries, including Mongolia, and encouraged repatriates to become naturalised citizens. Using the concept of ‘privileged exclusion’, this article argues that repatriated Kazakhs from Mongolia belong due to their knowledge of Kazakh language and traditions yet, at the same time, do not belong due to their lack of linguistic fluency in Russian, the absence of a shared Soviet experience, and limited comfort with the ‘cosmopolitan’ lifestyle that characterises the new elite in this post-Soviet context.  相似文献   
30.
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