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Volatiles emitted by decaying human remains are in the focus of recent research. The identification of core volatiles in this field is of high importance, because cadaveric volatiles generally show high variation. In this study, the volatile profiles of five mice (Myodes glareolus) were sampled with charcoal filter tubes from their time of death until advanced decay. Eleven compounds were quantitated by means of gas chromatography–mass spectrometry. Electroantennographic experiments with female Calliphora vicina antennae led to the identification of dimethyl trisulfide, dimethyl disulfide, nonanal, hexan‐1‐ol, 1‐octen‐3‐ol, 3‐methylbutan‐1‐ol, and heptanal as electrophysiologically active compounds. When these were compared, dimethyl trisulfide (17 ng/μL) and dimethyl disulfide (11 ng/μL) were found to be emitted in higher concentrations. The roles of these compounds and nonanal as core volatiles for cadaver detection or postmortem time determination and their correlation to the stages of decay and the accumulated degree days are discussed.  相似文献   
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The easily available "legal highs", which are products containing psychoactive substances, such as cathinones, piperazines and synthetic cannabinoids, are abused by adolescents in Poland and in the world as alternatives to classic drugs, such as amphetamines or marijuana. The majority of these potentially dangerous substances are still legal and they are associated with a risk of severe poisoning or even death, and provide new challenges in clinical and forensic toxicological practice. Investigations in the field of "designer drugs" may be well illustrated by the case of a suicide of a 21-year old male who ingested a specified dose of a preparation called "Amphi-bi-a" that contains bk-MBDB, chemically 2-methylamino-1-(3,4-methylenedioxyphenyl) butan-1-one, which belongs to the cathinone group, as a synthetic euphoric empathogen and psychoactive stimulant that is chemically similar to MDMA. It is one of more common components of "legal highs" examined in Poland and other countries. The documentation of the case includes a clinical assessment of the patient's health status performed during his almost 4-h hospitalization before death, autopsy and histological examinations supported by toxicological findings revealing bk-MBDB at extremely high concentrations (at 20mg/l in the blood and 33mg/kg in the liver); hence, this body of evidence contributes to knowledge in the field of "designer drugs". Inventions of designers of new psychoactive xenobiotics, which are much in demand, especially in view of the dynamic Internet marketing, which drums up narcobusiness, must be balanced by a national strategy developed by medical, legal and educational circles in the modern civilized world in order to prevent the spreading of the phenomenon.  相似文献   
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In public services that are tax funded, public goods are sometimes marketized by being delivered using private companies instead of public organizations. In addition, marketization reforms can entail service users being described as customers for the service rather than as citizens. We assess the effects of these aspects of marketization reforms on users' willingness to co-produce public services. First, service delivery using private companies risks reducing users' willingness to co-produce because firms cannot commit ex ante to not appropriate donated labour for private gain. Second, using customer-oriented language risks reductions by priming individualistic market norms that lower prosocial motivation compared to citizen-oriented language priming citizenship duty. Using three survey experiments in the United States, we find that delivery structures are not neutral. Private firms delivering local public services reduce users' willingness to co-produce, although similar effects are not evident from primimg customer rather than citizenship thinking.  相似文献   
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Journal of Chinese Political Science - Soft balancing has recently been framed as a general foreign policy strategy that is basically open to any state. However, what coalitions can actually engage...  相似文献   
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The patterns of cooperation between regions and urban spaces are no longer influenced, to the same extent, by national borders. Political integrative events changed the extent of transborder urban cooperation in the Baltic borderlands, a region that has undergone extensive changes. A social network analysis of cooperative ties in the form of town twinning indicates that the end of the Cold War strongly changed the network of town twinning in this region, whereas the effect of the various EU enlargement rounds seems to be more nuanced.  相似文献   
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Members of parliament (MPs) are elected via two different tiers in mixed-member electoral systems—as winners of a seat in a constituency or as party candidates under proportional rules. While previous research has identified important consequences of this “mandate divide” in parliaments, questions remain how this institutional setup affects MPs' political behavior in other arenas. Analyzing more than one million social media posts, this article investigates regional representation in the online communication of German MPs. The results show that MPs elected under a direct mandate refer approximately twice as often to their constituencies by using regionalized wording and geographic references than MPs elected under the proportional tier. The substantive findings provide new evidence for the benefits of mixed-member electoral systems for political representation while the methodological approach demonstrates the added value of social media data for analyzing the political behavior of elites.  相似文献   
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