An analytical evaluation of eight on-site oral fluid drug screening devices using laboratory confirmation results from oral fluid

A decaying cadaver emits volatile organic compounds that are used by necrophilous and necrophagous insects in order to find their brood substrate. Although volatile organic compounds (VOCs) that are released by carcasses have been identified, little is known about the specific compounds that are used by these insects while searching for a brood substrate. Therefore, we have investigated the chemical ecology involved in the attraction of the necrophagous hide beetle Dermestes maculatus, which feeds as an adult and larva upon decomposing carcasses. Our aims have been to identify the responsible compounds in the odours of the carcass that are important for the attraction of the beetles. Furthermore, we have studied sex- and age-related differences in beetle attraction and tested whether the hide beetle can distinguish between various stages of decomposition by means of the emitted odours. Headspace collection of volatiles released from piglet carcasses (bloated stage, post-bloating stage, advanced decay and dry remains), coupled gas chromatography-mass spectrometry (GC-MS), gas chromatography with electroantennographic detection (GC-EAD) and bioassays were conducted to identify the volatiles responsible for the attraction of the beetles. Freshly emerged male beetles were attracted by the odour of piglets in the post-bloating stage (9 days after death; T(mean) = 27 °C) and the EAD-active compound benzyl butyrate. Statistical analysis revealed a higher relative proportion of benzyl butyrate in the odour bouquet of the post-bloating stage in comparison with the other stages. We therefore conclude that this compound plays an important role in the attraction of hide beetles to carcass odour. This underlines the potential use of D. maculatus for the estimation of the post mortem interval. The decomposition stage at which the female beetles are attracted to the odour of a cadaver remains unknown, as does the nature of this attraction. Pheromones (sexual or aggregation pheromones) might play an essential role correlated with their attraction to carrion and consequently with their attraction to the substrate for mating and ovipositioning.     

Influence of the Code Civil in the Netherlands

The subject of this paper is the influence of the Code Civil in the Netherlands. First, the history of the codification in the Netherlands is examined. Then, attention is paid to the Burgerlijk Wetboek (BW) of 1838, the predecessor of the Dutch civil code of the present day. It is investigated whether this BW is a copy of the Code Civil or a work on its own. Within this framework, the reasons why the Code Civil had an extraordinary influence are shortly mentioned. Finally it is explained how this BW has developed to our BW of 1992. The Code Civil was the model for the BW of 1838. This does not mean that the BW is a copy of the Code. It was not simply a translation. The BW is influenced by the Code Civil, but this does not justify the view that the Netherlands adopted French law. On the contrary: some French rules were removed. Former Dutch law was inserted instead of the French rules or as a supplement to the BW. A large part of the Code is based on joint roots, and the most important common background is Roman law. Those rules cannot be qualified as French law. Besides this there are also typical French provisions, some originated by the French Revolution. With regard to this rules the question is whether these are French rules or universal rights. It can be argued that the BW of 1838 is an improved version of the Code Civil.     

Credibility and legitimacy in policy-driven innovation networks: resource dependencies and expectations in Dutch electric vehicle subsidies

The aim of this paper is to empirically examine the influence of credibility on the likelihood to grant consortia of collaborating actors an innovation subsidy. Theorizing from the viewpoint of resource dependence theory and the sociology of expectations, we hypothesize that four types of credibility of influence: scientific credibility, market credibility, expectation track record, and generated social capital. We operate on two levels of analysis, the actor and the consortium. We quantitatively analyze the Dutch electric vehicle subsidy program as case. We develop a model that accurately forecasts which consortia are most likely to receive subsidies. We demonstrate that generated social capital and market credibility positively influence the likelihood of receiving innovation subsidies, while scientific credibility sources and expectation track record have a negative influence. Based on these findings we provide policy recommendations and avenues for further research.     

Politicians,the Representativeness Heuristic and Decision-Making Biases

Political Behavior - Do politicians use the representativeness heuristic when making judgements, that is, when they appraise the likelihood or frequency of an outcome that is unknown or unknowable?...