The influence of ethanol containing cosmetics on ethyl glucuronide concentration in hair

Ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEE), non-volatile, direct metabolites of ethanol have been shown to be suitable markers for the evaluation of social and chronic excessive alcohol consumption. Previous investigations have shown that the regular use of hair-care products with high alcohol content lead to an increase of FAEE concentration and consequently gave false-positive results for the determination of FAEE in hair. In this study we investigated the influence of a long-term hair treatment with EtOH containing lotion, on the EtG concentrations in hair. In this study 7 volunteer subjects (classified as either rare, social or heavy drinkers) treated the right side of their scalp every day during a one or two month period with a commercial hair tonic (Seborin), which contains 44.0% ethanol (vol%). Collection of hair specimens from both sides of the scalp was done one day before hair treatment, one week and one month after treatment (for 5 subjects also after two months of treatment). A hair segment of 3 centimeters (cm) was cut and then washed with water and acetone, and then pulverized. EtG was quantified by GC/MS after pulverization and 2h of ultrasonication in water, extraction by solid phase extraction using Oasis MAX columns and derivatization with HFBA. Measurements were done in negative chemical ionization mode using EtG-D5 as internal standard. Comparison of EtG concentration in the treated and in the non-treated hair specimens did not show any increase at the different dates of collection for the 7 subjects. In conclusion, these results show that there is no indication for an increase of EtG after use of ethanol containing hair cosmetics.     

Health insurance in a democracy: Why is it public and why are premiums income related?

Many democracies have public health insurance systems which combine redistribution from the rich to the poor and from the healthy to the sick. This paper shows that such systems can be in the interest of the poor and the rich from a constitutional perspective. Necessary conditions are that insurance markets are incomplete and that income inequality is neither too low nor too high. Then even the rich can prefer a public health insurance system financed by income-dependent contributions compared to a system financed by a flat fee or a private health insurance system.     

Occasional Papers, hrsg. von Peter J. Opitz und Dietmar Herz in Verbindung mit dem Eric-Voegelin-Archiv an der Ludwig-Maximilian-Universität München und dem Eric-Voegelin-Archiv e.V. München

Ohne Zusammenfassung     

EUROSUR: saving lives or building borders?

This article analyses the origins and development of the European Border Surveillance System (EUROSUR) in order to better understand its functioning in view of its stated objectives. Particular attention will be devoted to the European Commission’s recurring claim that one of EUROSUR’s main goals is to save lives at sea. This contribution questions that assertion. It rather considers EUROSUR as representative of the steady, technocratic development of a European system for border management. The reliance on the exchange of information, the reinforcement of FRONTEX, the European Union’s agency for the coordination of operational cooperation between national border guards and the emphasis on cooperation with third countries support this claim.     

Bottom-up market-facilitation and top-down market-steering: comparing and conceptualizing green finance approaches in the EU and China

Asia Europe Journal - To address environmental problems, efforts to green financial systems are proliferating across the globe. However, green finance policy approaches differ substantially and in...