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691.
用气相色谱/质谱联用方法在一起死亡案中检验出安定的分解产物,并确定了分解产物的结构.  相似文献   
692.
综述了毛细管气相色谱柱的保养与维护.就毛细管柱分析使用中常遇到的一些问题,例如如何避免色谱柱的断裂,固定相的损伤,色谱柱的污染以及如何解决一些不能避免的问题和应采取的措施、步骤.  相似文献   
693.
简要地介绍了曲马多的药理性质和在生物样品中的分离方法,给出了其在GC和TLC法中的分析数据,所介绍的方法具有操作简单回收率高等优点.  相似文献   
694.
杀虫双的检验和质谱解析   总被引:3,自引:2,他引:1  
本文用气相色谱/质谱联用方法检验杀虫双,并解析杀虫双的质谱图.  相似文献   
695.
No matter the region of the world under study, party (system) institutionalisation has been traditionally considered to be a necessary, but not sufficient, condition for the survival of democracy. Despite being one of the most quoted statements in the democratisation literature, the few studies looking at the relationship between institutionalisation and democratic endurance have found no evidence of the ‘almost magical’ powers of the former. This article revisits the abovementioned research question by making use of an original dataset covering all European democracies between 1848 and 2014. The main findings are threefold: (1) it is not the institutionalisation of political parties but the institutionalisation of party systems as a whole that has fostered the prospects for democratic survival in Europe; (2) there is a threshold of systemic institutionalisation which, once reached, will avoid democratic collapse; and (3) systemic over-institutionalisation does not seem to be so perilous for the survival of democracy.  相似文献   
696.
Washington has become increasingly concerned that Beijing's anti-access area-denial (A2-AD) capabilities will put at risk US military assets and forward forces operating in the Western Pacific region, enabling China to deter, delay and deny US intervention in future regional conflict and crisis. US defence analysts in their assessments have frequently, and often erroneously, conflated a Chinese operational capability with an underlying strategic intention that conceptualises the United States as its primary (if not sole) target. The central argument this article proffers is that US perceptions of A2-AD have been framed by specific analytical baselines that have overlooked the evolution of Chinese operational and doctrinal preferences, and over-reliant upon military material-based assessments to determine Beijing's strategic intentions, and formulate US military countervails. The article concludes that the strategic ambiguities and opacity associated with Chinese A2-AD capabilities and its ‘active defence’ concept reinforced Washington's reliance upon capacity-based assessments that in turn, exacerbated misperceptions confounded by cognitive bias of Chinese strategic intentions. The critical framing assumptions of this article draw heavily upon the ideas and rationale associated with the international relations ‘Security Dilemma’ concept.  相似文献   
697.
“Bond notes” were introduced by the Reserve Bank of Zimbabwe in late 2016 as a local surrogate currency equivalent in value to the US dollar to address the acute currency shortage afflicting the economy. Unsurprisingly, they were overwhelmingly rejected by Zimbabweans, who feared that they heralded a return to the hyper-inflation which had destroyed incomes and savings in 2008–09. Accordingly, faced by a widening budget deficit, the ZANU–PF government turned to alternative methods of creating money with a view to winning the next election: expanding the supply of electronic currency and selling Treasury bills. The resultant financial crisis provided the backdrop to the military’s recent displacement of President Robert Mugabe. However, commitments to economic reform by any new government dominated by ZANU–PF appear unlikely to address Zimbabwe’s persistent crisis.  相似文献   
698.
This article explores the relationships between (so-called) ‘non-traditional’ development cooperation (NTDC) and political leadership. Using the case studies of Brazil and South Korea, we propose that certain emblematic elements of NTDC discourse and practice can act to influence the relationship with political leaders in particular ways. These are (a) elevated language of affect, (b) interleaving of personal biographies with the developmental trajectories of states, (c) the use of NTDC to legitimise domestic policies and promote domestic political leadership, (d) the prominence of presidential diplomacy and (e) the challenges confronting rapidly expanding domestic development cooperation institutions and systems.  相似文献   
699.
The field of public administration is often seen as a late adopter of cutting-edge research methods. Related disciplines like political science use more advanced research methods for single or small-n case studies including techniques like process tracing. Many elements of process tracing are analogous to investigations. To inform process tracing practices, political scientists looked at Sherlock Holmes novels. We draw on the experiences of a police inspector and a former soldier who worked with intelligence to offer insights on the implementation of process tracing, bridge the academic–practitioner gap, and increase the methodological rigor in public administration research.  相似文献   
700.
Although existing literature on central–local governance includes comprehensive studies on how constitutional and financial frameworks regulate local government autonomy, this study seeks explanations for the introduction or absence of central coercion within these frameworks. The analysis studies six processes of policy instrument choice with different outcomes in Norway, Denmark and Sweden in the field of refugee settlement. It finds that a uniform perception of crisis and political compromises make political parties abandon their political–ideological standpoints relating to central–local governance. Additionally, the success and failure of political strategies of obfuscation and of dividing the opposition help to explain the different outcomes. The study reveals differences in the political salience of central–local governance in three countries that have systematically been categorised in the same groups in central–local studies. Consequently, more studies on how and why local autonomy is regulated within national frameworks are necessary to understand the actual autonomy that local governments enjoy.  相似文献   
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