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11.
Karolina Nowak M.Sc. Paweł Szpot Ph.D. Marcin Zawadzki Ph.D. 《Journal of forensic sciences》2020,65(5):1784-1790
We present results of our study on the stability of 4-chloromethcathinone (4-CMC) in authentic postmortem peripheral blood and vitreous humor samples. The stability of 4-CMC was determined in postmortem blood samples (for a period of 90 days) and vitreous humor (30 days) at three different temperatures: −15°C, +4°C, and + 23°C. The analyses were carried out using ultra-high-performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry (UHPLC-QqQ-MS/MS). In both materials, the lowest 4-CMC stability was demonstrated at room temperature. The blood samples stored in a freezer (−15°C) showed stability for the entire study period (90 days), while in the case of the vitreous humor sample stored at the same temperature the concentration of the substance decreased by 53% after 30 days. The study carried out in authentic postmortem blood and vitreous humor samples confirms the previous reports of 4-CMC instability in biological material. Authors suggest that the biological material should be stored frozen until analyses are carried out as soon as possible after collection of the material. 相似文献
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International Journal for the Semiotics of Law - Revue internationale de Sémiotique juridique - Context is a notion that is commonly invoked in many linguistic studies, either with very... 相似文献
14.
新失业国企工人“城市游民”趋势研究——以郑州市为例 总被引:1,自引:0,他引:1
本文通过对游民的发展历史和概念探讨,重新界定了城市游民。认为从基本生存状态和谋生方式来看,脱离国企后的新失业国企工人,"游"的特性较为显著,出现向"城市游民"的发展趋势。但由于市民身份的优势,其稳定性和安定性又是游民所不具备的,他们又具有重新稳定下来的可能。 相似文献
15.
冉密 《中国劳动关系学院学报》2009,23(5)
城镇居民基本医疗保险制度是2007年由国务院推出的一项具有重要意义的惠民政策。通过七个试点城市政策的比较分析,对还未定型的城镇居民基本医疗保险制度的完善提出可借鉴性的建议。 相似文献
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Rafał Lisiakiewicz 《Communist and Post》2018,51(2):113-123
This article examines the problem of contemporary bilateral relations between Poland and Russia. Its thesis largely attributes the rivalry of these two states in Eastern Europe to conceptions relating to the balancing and bandwagoning of power. This rivalry can be put down to the fact that Polish-Russian relations are being developed within broader global processes such as Russia's relations with NATO, the USA and European Union. The greatest obstacle to the maintenance of mutually beneficial relations is the sensitive issue of security. In recent years Poland has consistently underlined its willingness to reinforce NATO's mutual defense mechanisms by supporting the organization's continued presence in Central-Eastern Europe. This issue has been compounded by Poland's striving to bring the countries of Eastern Europe (especially Ukraine) into closer affiliation with Western institutions favoring European integration, which is evidently perceived as interference in what is regarded by Moscow to be a sphere of Russian influence. This has provoked a number of serious crises in bilateral relations between Poland and Russia since the Euro-Maidan Revolution in Ukraine. Russian plans to install new (Iskander) missile systems close to the Polish border and Poland's effective attempts post-2014 to extend NATO presence within its own country testify to the scale of conflicts of interest between the two states and the lack of trust afforded by both sides. The issues highlighted in this paper are of great importance, since they not only enable the complexity of Central European issues to be more fully comprehended but also help to elucidate other global actors' conceptions relating to cooperation with Europe. 相似文献
18.
Why do some leaders make deeper commitments to human rights treaties (HRAs) by consenting to receive extra monitoring of complaints or communications from individual citizens? Extant theory suggests leaders join HRAs for tangible benefits. However, empirical support for this argument is mixed. To address this mismatch, we approach this question from a different angle. We argue that by ratifying HRAs, leaders send a signal that they are reliable partners who value future returns. Accepting optional articles and protocols that increase monitoring of the state’s human rights behavior, without changing the state’s substantive obligations, helps better signal that the regime does not fear instability nor sees the need to resort to the proscribed abuses in the future. This, in turn, serves as an important middle step to recognizing tangible benefits, such as foreign direct investment, by improving investors’ risk perception of ratified countries. 相似文献
19.
Anna Wylegała 《Nationalities Papers》2017,45(5):780-797
This article analyzes the status of difficult historic events in Ukrainian collective memory. Difficult elements of collective memory are defined as those which divide society on basic matters, such as identity and national cohesion, and events which are being actively forgotten because of the role of Ukrainians as perpetrators. Three such issues were analyzed: World War II and the role of the Ukrainian Insurgent Army (UPA), the Holocaust, and the ethnic purge of Poles in Volhynia and Eastern Galicia in 1943–1945. Utilizing data from quantitative and qualitative studies, the author showcases the significance of these issues for contemporary Ukrainian identity and Ukraine’s relations with its neighbors. In particular, the evaluation of World War II and the role of the UPA in Ukrainian history polarizes Ukrainian society to a great degree. At the same time, this element of national history is used to construct a common, anti-Russian identity. The difficulty of relating to the memory of the Holocaust and the ethnic purge in Volhynia is of a different character. These events are problematic for Ukrainian collective memory because they demand a painful settling of accounts with the past. At present, only Ukrainian elites are willing to work on these subjects, and only to a limited degree, while the common consciousness either denies or ignores them altogether. 相似文献
20.
Dalibor Mišina 《Nationalities Papers》2017,45(3):425-441
The aim of the paper is to go beyond the commonly accepted view of Sarajevo’s Plavi orkestar (The Blue Orchestra) as the 1980s “teen pop-rock sensation” and illuminate the less conspicuous, but nevertheless crucial, political dimension of the band’s music and visual aesthetics. This will be done by discussing several “pieces of the puzzle” essential to understanding the background to and motivations behind Plavi orkestar’s political engagement in the second half of the 1980s: (1) the “Sarajevo factor;” (2) the Sarajevo Pop-rock School and the New Primitives “poetics of the local;” (3) the generational Yugoslavism; (4) the New Partisans “poetics of the patriotic;” and (5) the post-New Partisans “hippie ethos.” The concluding section of the paper will reflect on Plavi orkestar’s resurgence in 1998 and explore the question of the band’s continuing resonance within the post-Yugoslav and post-socialist contexts. An argument underlying the discussion of all of these elements is that Plavi orkestar’s Yugoslavism of the 1980s is best understood as a soundtrack for the country that never was (i.e. a popular-cultural expression of what, from the viewpoint of a particular generational cohort and its location in the “Yugoslav socialist universe,” the community they thought of as their own ought to have been but never really was), and that the current value of this soundtrack lies in offering not only a particular window into the pre-post-socialist past but also in being a symbolic referent for a certain kind of retrospective utopia that gauges the realities of the post-socialist – that is, neo-liberal capitalist – present and, in so doing, figures as a “normative compass” for the life of dignified existence. 相似文献