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2427. Béla Balázs and the Haunting of Weimar FilmEszter Polonyi, unpublished invited conference lecture Abstract: We can all list the name of film actresses and film directors. Few of us will remember the name of a scenarist. And yet, the sce- narist might be responsible for every cut of every shot of every scene of a film. This talk is about the Weimar-era Béla Balázs, arguably the world’s most misunderstood film scenarist. In high demand for his world renowned theoretical understanding of the image, Balázs nevertheless is almost entirely unknown for his work in the film studio. Drawing on actual films by Balázs I have retrieved from archives, this talk hopes to recover not just the travails of the scenarist, but the aspects of the film image that he or she haunts.
Keywords: Weimar cinema, industry ephemera, media studies
Published in RUNG: 11.12.2020; Views: 2233; Downloads: 0
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2430. The peppermint breath test: a benchmarking protocol for breath sampling and analysis using GC-MSMaxim Wilkinson, Iain R. White, Katie Hamshere, Olaf Holz, Sven Schuchardt, Francesca G. Bellagambi, Tommaso Lomonaco, Denise Biagini, Laura Di Francesco, Stephen J. Fowler, 2020, original scientific article Abstract: Exhaled breath contains hundreds of volatile organic compounds (VOCs) which offers the potential for diagnosing and monitoring a wide range of diseases. As the breath research field has grown, sampling and analytical practices have become highly varied between groups. Standardisation would allow meta-analyses of data from multiple studies and greater confidence in published results. The Peppermint Consortium has been formed to address this task of standardisation. In the current study we aimed to generate initial benchmark values for thermal desorption-gas chromatography-mass spectrometry (TD-GC-MS) analysis of breath samples containing peppermint-derived VOCs. Headspace analysis of peppermint oil capsules was performed to determine compounds of interest. Ten healthy participants were recruited by three groups. Each participant provided a baseline breath sample prior to taking a peppermint capsule, with further samples collected at 60, 90, 165, 285 and 360 min following ingestion. Sampling and analytical protocols were different for each institution, in line with their usual practice. Samples were analysed by TD-GC-MS and benchmarking values determined for the time taken for detected peppermint VOCs to return to baseline values. Sixteen compounds were identified in the capsule headspace. Additionally, 2,3-dehydro-1,8-cineole was uniquely found in the breath samples, with a washout profile that suggested it was a product of peppermint metabolism. Five compounds (α-pinene, β-pinene, eucalyptol, menthol and menthone) were quantified by all three groups. Differences in recovery were observed between the groups, particularly for menthone and menthol. The average time taken for VOCs to return to baseline was selected as the benchmark and were 441, 648, 1736, 643 and 375 min for α-pinene, β-pinene, eucalyptol, menthone and menthol respectively. An initial set of easy-to-measure benchmarking values for assessing the performance of TD-GC-MS systems for the analysis of VOCs in breath is presented. These values will be updated when more groups provide additional data.
Keywords: Volatile organic compounds, breath, diagnostics, standardisation
Published in RUNG: 11.12.2020; Views: 3070; Downloads: 0
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