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   705篇
  免费   44篇
各国政治   71篇
工人农民   22篇
世界政治   87篇
外交国际关系   33篇
法律   377篇
中国政治   5篇
政治理论   149篇
综合类   5篇
  2024年   1篇
  2023年   13篇
  2022年   1篇
  2021年   11篇
  2020年   21篇
  2019年   29篇
  2018年   21篇
  2017年   39篇
  2016年   40篇
  2015年   29篇
  2014年   37篇
  2013年   139篇
  2012年   44篇
  2011年   27篇
  2010年   15篇
  2009年   11篇
  2008年   30篇
  2007年   31篇
  2006年   24篇
  2005年   22篇
  2004年   27篇
  2003年   19篇
  2002年   16篇
  2001年   14篇
  2000年   20篇
  1999年   7篇
  1998年   7篇
  1997年   7篇
  1996年   6篇
  1995年   4篇
  1994年   3篇
  1993年   4篇
  1992年   3篇
  1991年   2篇
  1990年   1篇
  1989年   2篇
  1988年   1篇
  1987年   2篇
  1986年   2篇
  1984年   1篇
  1983年   3篇
  1981年   2篇
  1978年   2篇
  1975年   2篇
  1973年   2篇
  1970年   1篇
  1968年   1篇
  1965年   2篇
  1963年   1篇
排序方式: 共有749条查询结果,搜索用时 15 毫秒
661.
Moral outrage and lack of comparison distorts the understanding of the natureand politically determined functions of governmental corruption in post-communist transition. As post-communist societies move towards open market systems and corruption is no longer limited to the public sector, politics is transformed into a potent tool for illegal transactions. The political structureitself creates corrupt practices that become a structural feature of transition societies. This article offers first a critical discussion of both moral theories of corruption and the thesis that posits a link between corruption and democracy deficit in post-communist countries. Subsequently, it sketches a neo-functionalist approach that puts corruption in a specific social context.With respect to East/Central Europe, corruption is presented as a betrayal ofpublic trust that serves specific requirements of an emerging ``extortioniststate.' These requirements relate to the expansion of extortion opportunitiesand their institutionalization into a semblance of a Tule of law system.  相似文献   
662.
Borda Count Versus Approval Voting: A Fuzzy Approach   总被引:1,自引:0,他引:1  
In this paper we consider a fuzzy variantof the Borda count taking into accountagents' intensities of preference. Thisfuzzy Borda count is obtained by means ofscore gradation and normalization processesfrom its original pattern. The advantagesof the Borda count hold, and are evenimproved, providing an appropriate schemein collective decision making. In addition,both classic and fuzzy Borda counts arerelated to approval voting, establishing aunified framework from distinct points ofview.  相似文献   
663.
664.
This article advances the idea that coalition formation and maintenance in highly fragmented presidential regimes is not only crucial to overcoming policy deadlock, but in some cases, critical to ensuring government survival. To advance this argument, the article looks at the formation and demise of legislative coalitions in Ecuador between 1979 and 2006. The empirical data suggest that paradoxically, government coalitions became more difficult to sustain after the adoption of institutional reforms intended to strengthen the president's legislative powers. The adoption of those reforms, it is argued, undermined the legislative incentives to cooperate with the government and helped to accelerate coalition erosion. Not only did the reforms fail significantly to avoid policy deadlock, but in some cases they contributed to the early termination of presidential mandates. This article contributes to the study of coalition survival and how it is linked to policymaking.  相似文献   
665.
Brazilian diplomats and academics alike have long regarded regional leadership as a springboard to global recognition. Yet Brazil's foreign policy has not translated the country's structural and instrumental resources into effective regional leadership. Brazil's potential followers have not aligned with its main goals, such as a permanent seat on the UN Security Council and Directorship‐General of the World Trade Organization; some have even challenged its regional influence. Nevertheless, Brazil has been recognized as an emergent global power. This article analyzes the growing mismatch between the regional and global performance of Brazilian foreign policy and shows how both theoretical expectations and policy planning were “luckily foiled” by unforeseen developments. It argues that because of regional power rivalries and a relative paucity of resources, Brazil is likely to consolidate itself as a middle global power before gaining acceptance as a leader in its region.  相似文献   
666.
A fast and simple LC-MS/MS method was developed for screening mephedrone, butylone, methylenedioxypyrovalerone (MDPV), flephedrone, methylone and methedrone in bulk powder samples. Samples were separated on a reverse phase column using gradient elution with mixtures of water, acetonitrile and formic acid. After optimization a limit of detection of about 2ngmL(-1) was achieved using multiple reaction monitoring (MRM) mode. Total run time was less than 8min. Typical fragmentation characteristics of the studied compounds are discussed. The method was successfully applied to several unknown bulk powder samples seized by the Hungarian Customs and Finance Guard. One of the samples contained the new designer drug 4'-methylethcathinone (4-MEC), which was identified and characterized by LC-MS/MS, NMR, FT-IR and LC-TOF-MS techniques. The method is also deemed to be applicable for the screening of simple dosage forms such as tablets and capsules.  相似文献   
667.
Various methods have been published in the literature to estimate endocranial capacity. These are based on mathematical equations using measurements made directly on the skull or indirectly from X-rays, by filling the skull with various materials, by endocasts both physical and virtual (using 3D CT-scan reconstructions). Each method has its advantages, limits and drawbacks. A useful method is one that is simple, time-efficient, cheap, and reproducible. For this study we estimated endocranial capacity by filling the skull with calibrated glass beads. We used a thorough protocol of tamping to ensure results reproducibility. Intra- and inter-observer trials showed no significant differences. The method was applied to 130 recent French (West European) skulls (65 males and 65 females). Sexual dimorphism was studied using logistic regression functions, discriminant analysis, and neural network. The best results were obtained using the neural network, built with two hidden nodes in the hidden layer and one output node, and trained with a steepest descent algorithm. Our tests show that there is obvious sexual dimorphism (p < 10(-5)) of the weight of the skulls (623.44 ± 106.83 g in males; 548.07 ± 94.57 in females), the weight of the glass beads used to fill the skulls (2379.83 ± 228.92 g in males; 2095.95 ± 145.49 in females), and endocranial capacity (1676.47 cm(3) ± 161.26 in males; 1476.48 ± 102.49 in females), but overlapping between sexes is quite significant. The average ECC in male (1676.5 cm(3)) and in female (1476.5 cm(3)) subjects is higher than those previously published, which deserves some discussion.  相似文献   
668.
Abstract: The AmpF?STR® Identifiler® Direct PCR Amplification Kit is a new short tandem repeat multiplex assay optimized to allow the direct amplification of single‐source blood and buccal samples on FTA® card without the need for sample purification and quantification. This multiplex assay has been validated according to the FBI/National Standards and SWGDAM guidelines. Validation results revealed that slight variations in primer concentration, master mix component concentration, and thermal cycling parameters did not affect the performance of the chemistry. The assay’s sensitivity was demonstrated by amplifying known amounts of white blood cells spotted onto FTA® cards, and the assay’s specificity was verified by establishing minimal cross‐reactivity with nonhuman DNA. No effect on the age of the sample stored on the FTA® substrate was observed and full concordance was established in the population study. These findings of the validation study support the use of the Identifiler® Direct Kit for forensic standards and database samples genotyping.  相似文献   
669.
Self-inflicted burns are rare in France, but they lead to major, often life-threatening complications. The authors reviewed medical data for patients hospitalized in a burn center from January 2004 to December 2008. Thirty-eight cases of self-inflicted burns were compared with 220 accidental burns. Women were predominantly affected (57.9%, n = 22). A psychiatric history (71%, n = 27) was more frequent in this population. The mean age of the victims was 38 years. The leading method of suicide was flame (94%, n = 36) associated with gasoline used as an accelerant (77.7%, n = 28). Mean total burn surface area (41.5%) and mortality (36.9%) were higher in the self-inflicted burn population. By recognizing epidemiological characteristics and patients at risk, we can better classify lesions related to self-immolation. It is important for the forensic physician to consult survival details to correlate these data with the results of autopsy.  相似文献   
670.
On 2 June 2009, the Nimes administrative court condemned the Hospital of Orange (France) for unreasonable obstinacy after neonatal resuscitation. On 14 December 2002, an apparently stillborn child was resuscitated after approximately 30 minutes of foetal distress. Cardiac activity was recovered, but the child has since suffered from severe disabilities. The court did not find any fault committed by the hospital regarding maternal care. However, the hospital was sentenced to compensate for the injuries caused by unreasonable obstinacy. According to the court, the medical team should have taken into account the harmful neurological consequences of prolonged foetal distress. The court did not condemn the act of resuscitation itself, but its excessive length. This court ruling serves as a basis for reflection regarding the limits by which unreasonable obstinacy should be set.  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