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The discovery via gravitational waves of binary black hole systems with total masses greater than 60Mʘ has raised interesting questions for stellar evolution theory. Among the most promising formation channels for these systems is one involving a common envelope binary containing a low metallicity, core helium burning star with mass ⁓30 – 40Mʘ and a black hole with mass ⁓30 – 40Mʘ. For this channel to be viable, the common envelope binary must eject more than half the giant star’s mass and reduce its orbital separation by as much as a factor of 80. We discuss issues faced in numerically simulating the common envelope evolution of such systems and present a 3D AMR simulation of the dynamical inspiral of a low-metallicity red supergiant with a massive black hole companion.
OBJECTIVES/SPECIFIC AIMS: To assess the association between probable OSA and the sudden unexpected death in epilepsy (SUDEP-7) risk profiling index in monitored adult inpatients with epilepsy. METHODS/STUDY POPULATION: We analyzed 49 consecutive adults (>18 years) with refractory epilepsy admitted to our inpatient epilepsy monitoring unit. The SUDEP-7 inventory was performed for all subjects. Probable OSA was identified using overnight oximetry, the Sleep Apnea Sleep Disorder Questionnaire (SA-SDQ), and STOP-BANG inventory. RESULTS/ANTICIPATED RESULTS: Thirty-nine percent of participants screened positive for probable sleep apnea. Patients with high SUDEP-7 scores were more likely to have a positive screen for OSA. DISCUSSION/SIGNIFICANCE OF IMPACT: OSA is an independent risk factor for sudden cardiac death. OSA may be a hitherto unrecognized contributor to sudden death risk in epilepsy. Further studies determining the relationship between OSA, neural circulatory control and SUDEP are warranted.
Nexus is the official publication of the biennial German Jewish Studies Workshop, which was inaugurated at Duke University in 2009, and is now held at the University of Notre Dame. Together, Nexus and the Workshop constitute the first ongoing forum in North America for German Jewish Studies. Nexus publishes innovative research in German Jewish Studies, introducing new directions, analyzing the development and definition of the field, and considering its place vis-à-vis both German Studies and Jewish Studies. Additionally, it examines issues of pedagogy and programming at the undergraduate, graduate, and community levels. Nexus 3 features special forum sections on Heinrich Heine and Karl Kraus. Renowned Heine scholar Jeffrey Sammons offers a magisterial critical retrospective on this towering "German Jewish" author, followed by a response from Ritchie Robertson, while the dean of Kraus scholarship, Edward Timms, reflects on the challenges and rewards oftranslating German Jewish dialect into English. Paul Reitter provides a thoughtful response.
Contributors: Angela Botelho, Jay Geller, Abigail Gillman, Jeffrey A. Grossman, Leo Lensing, Georg Mein, Paul Reitter, Ritchie Robertson, Jeffrey L. Sammons, Egon Schwarz, Edward Timms, Liliane Weissberg, Emma Woelk.
William Collins Donahue is the John J. Cavanaugh Professor of the Humanities at the University of Notre Dame, where he chairs the Department of German and Russian. Martha B. Helfer is Professor of German and an affiliate member of the Department of Jewish Studies at Rutgers, The State University of New Jersey.