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   298篇
  免费   18篇
各国政治   20篇
工人农民   29篇
世界政治   22篇
外交国际关系   7篇
法律   178篇
中国政治   3篇
政治理论   57篇
  2023年   3篇
  2022年   3篇
  2021年   4篇
  2020年   14篇
  2019年   11篇
  2018年   10篇
  2017年   19篇
  2016年   8篇
  2015年   12篇
  2014年   8篇
  2013年   31篇
  2012年   17篇
  2011年   9篇
  2010年   19篇
  2009年   12篇
  2008年   6篇
  2007年   18篇
  2006年   4篇
  2005年   10篇
  2004年   7篇
  2003年   12篇
  2002年   10篇
  2001年   3篇
  2000年   3篇
  1999年   4篇
  1998年   1篇
  1997年   6篇
  1996年   3篇
  1995年   8篇
  1994年   6篇
  1993年   2篇
  1992年   3篇
  1991年   3篇
  1990年   5篇
  1989年   5篇
  1988年   6篇
  1987年   1篇
  1986年   2篇
  1985年   3篇
  1983年   1篇
  1980年   1篇
  1978年   1篇
  1974年   1篇
  1973年   1篇
排序方式: 共有316条查询结果,搜索用时 15 毫秒
131.
132.
133.
International Environmental Agreements: Politics, Law and Economics - Historically, burden sharing of mitigation in the climate regime was operationalized as a binary division of the world between...  相似文献   
134.
In animal bites, the dental attributes can be fundamental in identifying the marks made by various species on different matrices. Although rodent bite marks have been studied in the context of postmortem interference, little research has used different baits to analyze these marks linking not only specific behavior patterns but also the possibility of structural damage. Twenty mice (Mus musculus) were exposed to different baits to study their bite marks in a controlled model. The known pattern of parallel and multiple grooves has been seen in all baits, but polyvinyl chloride and fiber‐optic cable were significantly different between each other and the other baits. Some baits showed patterns of anchorage of the upper incisors and space between the lower incisors when gnawing. This technical note represents a novel model of analysis where veterinarians and/or dentists may be asked to give an opinion on alleged animal bite marks.  相似文献   
135.
As laid down by Israeli legislation, the Regional Psychiatric Board constitutes one of the chief instruments in the monitoring of compulsory hospitalization, of compulsory outpatient treatment and of the quality of all inpatient care of the mentally ill. This article presents the findings of a study into the working of these boards. Taking a sample of every second application (N=168) over a 6-month period to one of Israel's six existing Regional Psychiatric Boards, an examination was made of the decisions issued by the board and of other aspects of its functioning. Explanations for the findings of this analysis are suggested, and generalizing from these findings, recommendations are offered for the improvement of the future functioning of all six Boards.  相似文献   
136.
An analytical method using solid-phase extraction (SPE) and high-performance liquid chromatography-mass spectrometry (LC-MS) has been developed and validated for the confirmation of Delta(9)-tetrahydrocannabinol (THC) in oral fluid samples. Oral fluid was extracted using Bond Elut LRC-Certify solid-phase extraction columns (10 cm(3), 300 mg) and elution performed with n-hexane/ethyl acetate. Quantitation made use of the selected ion-recording mode (SIR) using the most abundant characteristic ion [THC+H(+)], m/z 315.31 and the fragment ion, m/z 193.13 for confirmation, and m/z 318.00 for the protonated internal standard, [d(3)-THC+H(+)]. The method proved to be precise for THC, in terms of both intra-day and inter-day analyses, with coefficients of variation less than 10%, and the calculated extraction efficiencies for THC ranged from 76 to 83%. Calibration standards spiked with THC between 2 and 100 ng/mL showed a linear relationship (r(2)=0.999). The method presented was applied to the oral fluid samples taken from the volunteers during the largest music event in Portugal, named Rock in Rio-Lisboa. Oral fluid was collected from 40 persons by expectoration and with Salivette. In 55% of the samples obtained by expectorating, THC was detected with concentration ranges from 1033 to 6552 ng/mL and in 45% of cases THC was detected at concentrations between 51 and 937 ng/mL. However, using Salivette collection, 26 of the 40 cases had an undetectable THC.  相似文献   
137.
138.
Debates about how states deal with rising powers have been mainly concentrated on a continuum comprising on balancing and bandwagoning strategies. While theory has principally offered realist and liberal explanations, Japanese behavior vis-à-vis China does not match with them. Japan is not powerful enough to balance against China but remains too strong to bandwagon. Accordingly, Tokyo is pursuing a mixed strategy of both containment and engagement, which may be better described as a hedging strategy against Beijing. This article analyzes which strategies states can adopt when dealing with a rising power and proposes a framework to analyze Japan’s recent policy towards China based on Kuik’s analysis. We argue that Japan’s hedging strategy towards China is consistent with how middle-power states deal with rising power.  相似文献   
139.
140.
The political effects of the Great Recession on southern Europe were substantial. The rapid economic deterioration of Portugal, Italy, Greece and Spain from 2008 onwards was accompanied by an increase in citizens’ dissatisfaction towards national political institutions. The sources of political mistrust in the southern periphery were of a political and economic nature. Using quantitative data from EU member states from 2000 to 2015, this paper evaluates the suitability of competing theories in explaining this shift in political attitudes in southern European countries. It first hypothesizes that political mistrust is explained by citizens’ rationalist evaluations of changing macroeconomic performance. It also hypothesizes that political mistrust changes according to institutional performance. The paper argues that economic crises act as an external shock that places politics, politicians and institutions in the spotlight as a result of citizens’ deteriorating performance of the economy. The findings suggest that unemployment, public debt and political corruption are key variables in understanding short-term changes in political mistrust.  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