Validation of an ion mobility spectrometry (IMS) method for the detection of heroin and cocaine on incriminated material

The validation of a qualitative ion mobility spectrometry (IMS) procedure for the detection of trace amounts of heroin and cocaine on incriminated material using a vacuum cleaner for sampling is presented. The limit of detection, the limit of decision, selectivity and robustness were determined. As an approach, robustness was determined using ionizational interferences and matrix effects. By using this simple sampling procedure, a positive result for incriminated clothes needs a contamination of 250ng cocaine and 1000ng heroin, respectively.     

Politically valued resources and preferred outcomes: Does the political context matter?

Previous research has concluded that ownership of economic resources that are politically valued leads to preferential outcomes during interactions with government officials. However, how the political context, and specifically the roles of the government actors involved, influences the relationship between political valued resources (PVRs) and desired outcomes has to date been relatively unexplored. In our paper, we argue that in interactions with elected legislators, PVRs are much more likely to lead to preferential outcomes. Conversely, due to the lack of power these resources have with bureaucrats in charge of regulatory enforcement, PVRs are less likely to lead to preferential outcomes. We provide some support for our arguments by looking for shifting patterns of effects in outcome variables that typically fall under the jurisdiction of each political role type. We find that large firms, export firms, and technology firms largely report having favorable influence over laws and regulations due to lobbying and increased foreign ownership, while also spending more days in inspections and more managerial time dealing with regulations.     

The Potential of High-throughput Metagenomic Sequencing of Aquatic Bacterial Communities to Estimate the Postmortem Submersion Interval

Human remains can be discovered in freshwater or marine ecosystems, circumstances where insects and other invertebrates have infrequently been used for understanding the time of postmortem submersion. In this study, the identification and succession of epinecrotic bacterial communities on vertebrate remains were described during decomposition in a temperate headwater stream during two seasons (summer and winter). Bacterial communities were characterized with 454 pyrosequencing and analyzed at phyletic and generic taxonomic resolutions. There was a significant increase in genera richness over decomposition during both seasons. Additionally, multivariate statistical modeling revealed significant differences in bacterial communities between seasons at both taxonomic resolutions and siginificant genera differences among sampling days within each season, suggesting a succession of these communities. These data are the first to describe aquatic bacterial succession using high-throughput metagenomic sequencing on vertebrate remains submerged in a freshwater habitat, and provide initial evidence for their potential use in forensic investigations.     

Contracting Out Local Services: A Tale of Technical and Social Services

Governments face a fundamental choice between in‐house production and contracting out for the delivery of services to citizens. This article examines the importance of ideology, fiscal pressure, and size for contracting out in technical and social services. The analysis builds on a panel data set covering municipal spending on services in all 98 Danish municipalities. The authors find that contracting out is shaped by ideology in social services but not in technical services, which indicates that social services are the contemporary ideological battlefield of privatization. The analysis further reveals that economically prosperous municipalities are more likely to contract out social services, whereas contracting out of technical services is not influenced by economic affluence. Finally, larger municipalities contract out more in technical services but less in social services, demonstrating that the size effect is contingent on the transaction cost characteristics of the service.     

Pharmaceutical error resulting in fatal diabetic ketoacidosis

A 41-year-old male with a 25-year history of diabetes mellitus requiring 25 to 30 units of neutral protamine hagedorn (NPH) insulin daily was found dead at home. Recent history revealed that he was well until the last four days of life when he had the onset of nausea, vomiting, and anorexia coinciding with procurement of a new bottle of insulin from his pharmacist. Pertinent autopsy findings included coronary and aortic atherosclerosis, a peptic ulcer, and diabetic glomerulopathy. Chemical analysis of the vitreous humor, including glucose (813 mg/dL) and acetone (40 mg/dL), revealed that he died of diabetic ketoacidosis. Further investigation revealed that the pharmacist had accidentally substituted regular insulin, with a duration of action of up to 6 h as opposed to 24 to 28 h, for NPH. Cultures of blood and of the regular insulin yielded no growth. Analysis of this case emphasizes the importance of obtaining a careful medical and medication history and the usefulness of vitreous electrolytes when investigating a sudden death in a diabetic.     

Hungary

European Journal of Political Research -     

关于西方节日对大学生影响的调查分析--以清华大学为例

◎大学生对于西方节日的了解程度◎大学生对于西方节日的基本态度◎西方节日对于大学生的影响近年来,西方节日在青年群体中日益流行,特别是在大学校园,各种各样的西方节日越来越受到大学生们的欢迎和重视。在很多大学校园里,真正让人感觉到有过节气氛的往往不是中国的传统节日而恰恰是某些西方节日,譬如圣诞节和情人节。这一问题曾经引发了很多人的关注,对于大学生过洋节的现象很多人表示难以理解,当然也有一部分人表示支持。那么大学生们对待西方节日究竟是一种什么样的态度?西方节日为什么能够在大学生中受欢迎?西方节日到底给大学生们带…     

Literatur

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