Lessons learned from inter-laboratory studies of carbon isotope analysis of honey

Forensic application of carbon isotope ratio measurements of honey and honey protein to investigate the degree of adulteration with high fructose corn syrup or other C₄ plant sugars is well established. These measurements must use methods that exhibit suitable performance criteria, particularly with regard to measurement uncertainty and traceability – low levels of adulteration can only be detected by methods that result in suitably small measurement uncertainties such that differences of 1‰ or less can be reliably detected. Inter-laboratory exercises are invaluable to assess the state-of-the art of measurement capabilities of laboratories necessary to achieve such performance criteria. National and designated metrology institutes from a number of countries recently participated in an inter-laboratory assessment (CCQM-K140) of stable carbon isotope ratio determination of bulk honey. The same sample material was distributed to a number of forensic isotope analysis laboratories that could not participate directly in the metrological comparison. The results from these studies have demonstrated that the majority of participants provided isotope delta values with acceptable performance metrics; that all participants ensured traceability of their results; and that where measurement uncertainties were reported; these were fit-for-purpose. A number of the forensic laboratories only reported precision rather than full estimates of measurement uncertainty and this was the major cause of the few instances of questionable performance metrics. Reporting of standard deviations in place of measurement uncertainties is common practice outside metrology institutes and the implications for interpretations of small differences in isotopic compositions are discussed. The results have also highlighted a number of considerations that are useful for organisers of similar inter-laboratory studies in the future.     

Lithuanian men’s struggles with precarious life: unemployment,working identities,and strategies of survival

Using semi-structured interviews with young unemployed Lithuanian men, this article examines three distinct male working identities associated with ways of coping with unemployment and a sense of precarity: “desperate conformists,” “liberated dreamers,” and men “lost in work transition.” The interviews demonstrate that unemployment stigmatizes men, particularly those with lesser professional and social competencies crucial to efficient participation in the labor market. Therefore, the respondents’ incessant attempts to search for a job or their dreaming about it can be regarded as a way of resisting stigmatization and precarity.     

Slovakia

European Journal of Political Research -     

An historian writes Poetry

The territory of this new European state is crossed by strategically important passes, the lowest in the entire Alps, leading from the Danubian basin to the Mediterranean (Italy). Thus, the Slovenes had been under cultural, civilizational and political domination of centers from these two parts of Europe until 1918. Because the mountainous land forms, dissected also by valleys and basins, were prone to processes of diffusion rather than fusion, the Slovenes became a national and political subject of their own as late as the nineteenth century. From 1918 to 1990 they were joined to Yugoslavia, a South‐East European state, and learnt, to their cost, all the differences between the cultures of West and Central Europe on the one hand, and South‐East and Eastern Europe and the Near East on the other. Hence the plebiscite decision by the nation for an independent state.