3,310 results on '"Dahm P"'
Search Results
2. Anomalous Diffusion, Prethermalization, and Particle Binding in an Interacting Flat Band System
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Daumann, Mirko and Dahm, Thomas
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Condensed Matter - Statistical Mechanics - Abstract
We study the broadening of initially localized wave packets in a quasi one-dimensional diamond ladder with interacting, spinless fermions. The lattice possesses a flat band causing localization. We place special focus on the transition away from the flat band many-body localized case by adding very weak dispersion. By doing so, we allow propagation of the wave packet on significantly different timescales which causes anomalous diffusion. Due to the temporal separation of dynamic processes, an interaction-induced, prethermal equilibrium becomes apparent. A physical picture of light and heavy modes for this prethermal behavior can be obtained within Born-Oppenheimer approximation via basis transformation of the original Hamiltonian. This reveals a detachment between light, symmetric and heavy, anti-symmetric particle species. We show that the prethermal state is characterized by heavy particles binding together mediated by the light particles., Comment: Revised version accepted by New Journal of Physics. 23 pages, 8 figures
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- 2024
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3. Numerical Discretisation of Hyperbolic Systems of Moment Equations Describing Sedimentation in Suspensions of Rod-Like Particles
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Dahm, Sina, Giesselmann, Jan, and Helzel, Christiane
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Mathematics - Numerical Analysis - Abstract
We present a numerical discretisation of the coupled moment systems, previously introduced in Dahm and Helzel, which approximate the kinetic multi-scale model by Helzel and Tzavaras for sedimentation in suspensions of rod-like particles for a two-dimensional flow problem and a shear flow problem. We use a splitting ansatz which, during each time step, separately computes the update of the macroscopic flow equation and of the moment system. The proof of the hyperbolicity of the moment systems in \cite{Dahm} suggests solving the moment systems with standard numerical methods for hyperbolic problems, like LeVeque's Wave Propagation Algorithm \cite{LeV}. The number of moment equations used in the hyperbolic moment system can be adapted to locally varying flow features. An error analysis is proposed, which compares the approximation with $2N+1$ moment equations to an approximation with $2N+3$ moment equations. This analysis suggests an error indicator which can be computed from the numerical approximation of the moment system with $2N+1$ moment equations. In order to use moment approximations with a different number of moment equations in different parts of the computational domain, we consider an interface coupling of moment systems with different resolution. Finally, we derive a conservative high-resolution Wave Propagation Algorithm for solving moment systems with different numbers of moment equations.
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- 2024
4. Exploring Florida's Inclusive Postsecondary Education Programs
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Laura M. Heron, Rumi Agarwal, Kathleen Becht, L. Danielle Roberts-Dahm, and Shanna L. Burke
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Inclusive Postsecondary Education (IPSE) programs offer students with intellectual disabilities (ID) the opportunity to enhance academic, career, and independent living skills, with the ultimate goal of preparing them for meaningful employment. Given the significance of such programs and their rapid growth across the country and in Florida, an ongoing examination of the progress, challenges, and support needs of IPSE programs is crucial. To extend current research efforts at the state level, two focus groups (n = 12) were conducted representing 11 of Florida's IPSE programs and one state agency to explore the experiences of IPSE programs in Florida. Four major themes were generated following thematic analysis of data: the need for preparing students and families for postsecondary education environments, the types of support Florida's IPSE programs have received, the major barriers IPSE programs are currently facing, and finally, what IPSE programs need in the future to continue to support students with ID. Findings from this study offer significant insights into the current status and needs of Florida's IPSE programs and serve to inform the work of disability resource providers, and the creation, expansion, and sustainability of IPSE programs across the state.
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- 2023
5. Source-specific nitrate intake and all-cause mortality in the Danish Diet, Cancer, and Health Study
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Bondonno, Nicola P., Pokharel, Pratik, Bondonno, Catherine P., Erichsen, Dorit W., Zhong, Liezhou, Schullehner, Jörg, Frederiksen, Kirsten, Kyrø, Cecilie, Hendriksen, Peter Fjeldstad, Hodgson, Jonathan M., Dalgaard, Frederik, Blekkenhorst, Lauren C., Raaschou-Nielsen, Ole, Sigsgaard, Torben, Dahm, Christina C., Tjønneland, Anne, and Olsen, Anja
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- 2024
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6. Responding to Migration-Related Diversity in the Classroom: A Comparison of Diversity-Sensitive Approaches to Stimulate Word Acquisition in Early FL Teaching
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Vera Busse, Lara-Maria McLaren, and Alexander Dahm
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Although calls for responding to migration-related diversity in education are not novel, few studies have examined linguistic and affective outcomes of diversity-sensitive approaches for vocabulary teaching. This article reports on an intervention study in which beginner English-foreign-language learners (N = 51, M[subscript age] = 8.67 years) worked on one textbook unit (five 45-min lessons). Teachers supplemented the unit with translingual scaffolds and encouraged students to draw on and use their linguistic resources (plurilingual group), or stimulated appreciation of plurilingualism and positive language attitudes (motivation group). We assessed language gains through pre-, post-, and follow-up tests, and measured affect after each lesson. Both intervention groups outperformed the control group, which worked only with the textbooks, regarding productive vocabulary learning. Translingual scaffolding was beneficial for sustaining vocabulary gains. The data further indicate that motivational activities stimulate positive affect, but only the plurilingual group showed lower negative affect than the control group. Overall, the data suggest that intervention activities can augment productive vocabulary and support student well-being. We argue that future studies should pay more attention to affective outcomes when exploring ways of addressing migration-related diversity in the classroom.
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- 2024
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7. Twenty-Five Years of Accretion onto the Classical T Tauri Star TW Hya
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Herczeg, Gregory J., Chen, Yuguang, Donati, Jean-Francois, Dupree, Andrea K., Walter, Frederick M., Hillenbrand, Lynne A., Johns-Krull, Christopher M., Manara, Carlo F., Guenther, Hans Moritz, Fang, Min, Schneider, P. Christian, Valenti, Jeff A., Alencar, Silvia H. P., Venuti, Laura, Alcala, Juan Manuel, Frasca, Antonio, Arulanantham, Nicole, Linsky, Jeffrey L., Bouvier, Jerome, Brickhouse, Nancy S., Calvet, Nuria, Espaillat, Catherine C., Campbell-White, Justyn, Carpenter, John M., Chang, Seok-Jun, Cruz, Kelle L., Dahm, S. E., Eisloeffel, Jochen, Edwards, Suzan, Fischer, William J., Guo, Zhen, Henning, Thomas, Ji, Tao, Jose, Jesse, Kastner, Joel H., Launhardt, Ralf, Principe, David A., Robinson, Conner E., Serna, Javier, Siwak, Michal, Sterzik, Michael F., and Takasao, Shinsuke
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Astrophysics - Solar and Stellar Astrophysics ,Astrophysics - Earth and Planetary Astrophysics - Abstract
Accretion plays a central role in the physics that governs the evolution and dispersal of protoplanetary disks. The primary goal of this paper is to analyze the stability over time of the mass accretion rate onto TW Hya, the nearest accreting solar-mass young star. We measure veiling across the optical spectrum in 1169 archival high-resolution spectra of TW Hya, obtained from 1998--2022. The veiling is then converted to accretion rate using 26 flux-calibrated spectra that cover the Balmer jump. The accretion rate measured from the excess continuum has an average of $2.51\times10^{-9}$~M$_\odot$~yr$^{-1}$ and a Gaussian distribution with a FWHM of 0.22 dex. This accretion rate may be underestimated by a factor of up to 1.5 because of uncertainty in the bolometric correction and another factor of 1.7 because of excluding the fraction of accretion energy that escapes in lines, especially Ly$\alpha$. The accretion luminosities are well correlated with He line luminosities but poorly correlated with H$\alpha$ and H$\beta$ luminosity. The accretion rate is always flickering over hours but on longer timescales has been stable over 25 years. This level of variability is consistent with previous measurements for most, but not all, accreting young stars., Comment: Accepted by ApJ. 31 pages
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- 2023
8. Astrometry and Photometry for $\approx$1000 L, T, and Y Dwarfs from the UKIRT Hemisphere Survey
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Schneider, Adam C., Munn, Jeffrey A., Vrba, Frederick J., Bruursema, Justice, Dahm, Scott E., Williams, Stephen J., Liu, Michael C., and Dorland, Bryan N.
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Astrophysics - Solar and Stellar Astrophysics ,Astrophysics - Astrophysics of Galaxies - Abstract
We present positions, proper motions, and near-infrared photometry for 966 known objects with spectral types later than M observed as part of the the UKIRT Hemisphere Survey (UHS). We augment the photometry and astrometry from UHS with information from Gaia DR3, Pan-STARRS DR2, and CatWISE 2020 to produce a database of homogeneous photometry and astrometry for this sample. The multi-epoch survey strategy of UHS allows us to determine proper motions for most sources, with a median proper motion uncertainty of $\sim$3.6 mas yr$^{-1}$. Our UHS proper motion measurements are generally in good agreement with those from Gaia DR3, Pan-STARRS, and CatWISE 2020, with UHS proper motions typically more precise than those from CatWISE 2020 and Pan-STARRS but not Gaia DR3. We critically analyze publicly available spectra for 406 members of this sample and provide updated near-infrared spectral types for $\sim$100 objects. We determine typical colors as a function of spectral type and provide absolute magnitude vs. spectral type relations for UHS $J$- and $K$-band photometry. Using newly determined proper motions, we highlight several objects of interest, such as objects with large tangential velocities, widely separated co-moving companions, and potential members of young nearby associations., Comment: Accepted to AJ
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- 2023
9. Association of body shape phenotypes and body fat distribution indexes with inflammatory biomarkers in the European Prospective Investigation into Cancer and Nutrition (EPIC) and UK Biobank
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González-Gil, Esther M., Peruchet-Noray, Laia, Sedlmeier, Anja M., Christakoudi, Sofia, Biessy, Carine, Navionis, Anne-Sophie, Mahamat-Saleh, Yahya, Jaafar, Rola F., Baurecht, Hansjörg, Guevara, Marcela, Etxezarreta, Pilar Amiano, Verschuren, W. M. Monique, Boer, Jolanda M. A., Olsen, Anja, Tjønneland, Anne, Simeon, Vittorio, Castro-Espin, Carlota, Aune, Dagfinn, Heath, Alicia K., Gunter, Marc, Colorado-Yohar, Sandra M., Zilhão, Nuno R., Dahm, Christina C., Llanaj, Erand, Schulze, Matthias B., Petrova, Dafina, Sieri, Sabina, Ricceri, Fulvio, Masala, Giovanna, Key, Tim, Viallon, Vivian, Rinaldi, Sabina, Freisling, Heinz, and Dossus, Laure
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- 2024
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10. Contamination of a drug consumption room with drugs and potential risks for social health care workers
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Cuffaro, Flore, Dahm, Georges, Marson, Claude, Berlemont, Patrick, Yegles, Michel, Allar, Claudia, Fauchet, Lionel, Creta, Matteo, and Schneider, Serge
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- 2024
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11. On the use of the healthy lifestyle index to investigate specific disease outcomes
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Viallon, Vivian, Freisling, Heinz, Matta, Komodo, Nannsen, Anne Østergaard, Dahm, Christina C., Tjønneland, Anne, Eriksen, Anne Kirstine, Kaaks, Rudolf, Katzke, Verena A., Schulze, Matthias B., Masala, Giovanna, Tagliabue, Giovanna, Simeon, Vittorio, Tumino, Rosario, Milani, Lorenzo, Derksen, Jeroen W. G., van der Schouw, Yvonne T., Nøst, Therese Haugdahl, Borch, Kristin Benjaminsen, Sandanger, Torkjel M., Quirós, J. Ramón, Rodriguez-Barranco, Miguel, Bonet, Catalina, Aizpurua-Atxega, Amaia, Cirera, Lluís, Guevara, Marcela, Sundström, Björn, Winkvist, Anna, Heath, Alicia K., Gunter, Marc J., Weiderpass, Elisabete, Johansson, Mattias, and Ferrari, Pietro
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- 2024
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12. Prescription medication use in the 10 years prior to diagnosis of young onset Alzheimer’s disease: a nationwide nested case-control study
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Damsgaard, Line, Janbek, Janet, Laursen, Thomas Munk, Vestergaard, Karsten, Gottrup, Hanne, Jensen-Dahm, Christina, and Waldemar, Gunhild
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- 2024
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13. Hepatic steatosis, metabolic dysfunction and risk of mortality: findings from a multinational prospective cohort study
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Mayén, Ana-Lucia, Sabra, Mirna, Aglago, Elom K., Perlemuter, Gabriel, Voican, Cosmin, Ramos, Ines, Debras, Charlotte, Blanco, Jessica, Viallon, Vivian, Ferrari, Pietro, Olsen, Anja, Tjønneland, Anne, Langmann, Fie, Dahm, Christina C., Rothwell, Joseph, Laouali, Nasser, Marques, Chloé, Schulze, Matthias B., Katzke, Verena, Kaaks, Rudolf, Palli, Domenico, Macciotta, Alessandra, Panico, Salvatore, Tumino, Rosario, Agnoli, Claudia, Farràs, Marta, Molina-Montes, Esther, Amiano, Pilar, Chirlaque, María-Dolores, Castilla, Jesús, Werner, Mårten, Bodén, Stina, Heath, Alicia K., Tsilidis, Kostas, Aune, Dagfinn, Weiderpass, Elisabete, Freisling, Heinz, Gunter, Marc J., and Jenab, Mazda
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- 2024
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14. Studying the viability and growth kinetics of vancomycin-resistant Enterococcus faecalis V583 following femtosecond laser irradiation (420–465 nm)
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El-Gendy, Ahmed O., Ezzat, Sarah, Samad, Fatma Abdel, Dabbous, Ola Ali, Dahm, Jonathan, Hamblin, Michael R., and Mohamed, Tarek
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- 2024
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15. Healthy lifestyle change and all-cause and cancer mortality in the European Prospective Investigation into Cancer and Nutrition cohort
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Matta, Komodo, Viallon, Vivian, Botteri, Edoardo, Peveri, Giulia, Dahm, Christina, Nannsen, Anne Østergaard, Olsen, Anja, Tjønneland, Anne, Elbaz, Alexis, Artaud, Fanny, Marques, Chloé, Kaaks, Rudolf, Katzke, Verena, Schulze, Matthias B., Llanaj, Erand, Masala, Giovanna, Pala, Valeria, Panico, Salvatore, Tumino, Rosario, Ricceri, Fulvio, Derksen, Jeroen W. G., Nøst, Therese Haugdahl, Sandanger, Torkjel M., Borch, Kristin Benjaminsen, Quirós, J. Ramón, Castro-Espin, Carlota, Sánchez, Maria-José, Atxega, Amaia Aizpurua, Cirera, Lluís, Guevara, Marcela, Manjer, Jonas, Tin Tin, Sandar, Heath, Alicia, Touvier, Mathilde, Goldberg, Marcel, Weiderpass, Elisabete, Gunter, Marc J., Freisling, Heinz, Riboli, Elio, and Ferrari, Pietro
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- 2024
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16. Anti-repeating earthquakes and how to explain them
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Cesca, Simone, Niemz, Peter, Dahm, Torsten, and Ide, Satoshi
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- 2024
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17. Author Correction: Monitoring underwater volcano degassing using fiber‑optic sensing
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Caudron, Corentin, Miao, Yaolin, Spica, Zack J., Wollin, Christopher, Haberland, Christian, Jousset, Philippe, Yates, Alexander, Vandemeulebrouck, Jean, Schmidt, Bernd, Krawczyk, Charlotte, and Dahm, Torsten
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- 2024
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18. Monitoring underwater volcano degassing using fiber-optic sensing
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Caudron, Corentin, Miao, Yaolin, Spica, Zack J., Wollin, Christopher, Haberland, Christian, Jousset, Philippe, Yates, Alexander, Vandemeulebrouck, Jean, Schmidt, Bernd, Krawczyk, Charlotte, and Dahm, Torsten
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- 2024
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19. Response to letter to the editor on the systematic review “Narrow band imaging versus white light cystoscopy alone for transurethral resection of non-muscle invasive bladder cancer”
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Dahm, Philipp, Maisch, Philipp, and Lane, Giulia I.
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- 2024
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20. Production of Fermented Solid Containing Lipases from Penicillium polonicum and Its Direct Use as Biocatalyst in the Synthesis of Ethyl Oleate
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Carvalho, Jéssyca Ketterine, Zanella, Ricardo Antonio, Piana, Pitágoras Augusto, Rosado, Adriana Fiorini, da Silva, Mairim Dahm, Lucca, Rosemeire Aparecida da Silva de, Fagundes-Klen, Marcia Regina, da Silva, Edson Antônio, Zanella, Karine, Buzanello, Cleide Viviane, Onofrio, Álvaro Barcellos, and Rodrigues, Maria Luiza Fernandes
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- 2024
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21. “To implant or not to implant”: electrically evoked auditory brainstem response audiometry for decision-making in vestibular schwannoma resection with CI
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Dahm, Valerie, Gadenstaetter, Anselm Joseph, and Arnoldner, Christoph
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- 2024
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22. The 16 September 2023 Greenland Megatsunami: Analysis and Modeling of the Source and a Week-Long, Monochromatic Seismic Signal
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Angela Carrillo-Ponce, Sebastian Heimann, Gesa M. Petersen, Thomas R. Walter, Simone Cesca, and Torsten Dahm
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Geology ,QE1-996.5 - Abstract
On 16 September 2023, a cascade of events occurred in East Greenland, involving a large tsunami that hit a military unit. Here, we use seismic waveform data recorded on regional to global scales and compare to high-resolution satellite images to learn about the cascade of events. We find two distinct seismic signals and develop a conceptual and physical model explaining the observations: initially, the high-energy seismic signals (0.02–0.06 Hz) occurred, followed by an over one-week-long monochromatic signal (0.0109 Hz) recorded even at 5000 km distance. Our single force (SF) inversions characterize both an initial rockslide and the one-week-long seiche oscillation processes. The rockslide signal is well reproduced by west and downward SF, with an orientation consistent with observations on satellite imagery. The amplitude decay of the week-long oscillation, stacked at three teleseismic arrays, is fitted with a damped oscillator model. Using a simple analytical model of water seiching in a narrow fjord, we can explain the force direction and frequency consistent with the results from SF inversion.
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- 2024
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23. Contamination of a drug consumption room with drugs and potential risks for social health care workers
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Flore Cuffaro, Georges Dahm, Claude Marson, Patrick Berlemont, Michel Yegles, Claudia Allar, Lionel Fauchet, Matteo Creta, and Serge Schneider
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Drug consumption room ,Occupational health ,Surface contamination ,Drugs of abuse ,Heroin ,Cocaine ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Studies have shown that contamination of surfaces by illicit drugs frequently occurs in forensic laboratories when manipulating seized samples as well as in pharmacies and hospitals when preparing medicinal drugs. In this project, we extended these studies to a Drug Consumption Room to investigate drug levels and possible exposure of the staff members. Methods We investigated pre and post cleaning contamination by heroin and cocaine and their degradation products 6-monoacetylmorphine and benzoylecgonine on different surfaces (tables, counters, computers and door handles) and in the ambient air. We also collected urine and hair samples from staff members to check for potential short and long term contaminations. Results Medium to heavy contamination has been detected on most surfaces and door handles; as expected, air contamination was particularly high in the smoking room. Drug levels were
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- 2024
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24. Association of body shape phenotypes and body fat distribution indexes with inflammatory biomarkers in the European Prospective Investigation into Cancer and Nutrition (EPIC) and UK Biobank
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Esther M. González-Gil, Laia Peruchet-Noray, Anja M. Sedlmeier, Sofia Christakoudi, Carine Biessy, Anne-Sophie Navionis, Yahya Mahamat-Saleh, Rola F. Jaafar, Hansjörg Baurecht, Marcela Guevara, Pilar Amiano Etxezarreta, W. M. Monique Verschuren, Jolanda M. A. Boer, Anja Olsen, Anne Tjønneland, Vittorio Simeon, Carlota Castro-Espin, Dagfinn Aune, Alicia K. Heath, Marc Gunter, Sandra M. Colorado-Yohar, Nuno R. Zilhão, Christina C. Dahm, Erand Llanaj, Matthias B. Schulze, Dafina Petrova, Sabina Sieri, Fulvio Ricceri, Giovanna Masala, Tim Key, Vivian Viallon, Sabina Rinaldi, Heinz Freisling, and Laure Dossus
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Body shape ,Height ,Anthropometric indicators ,Inflammation ,C-reactive protein ,Medicine - Abstract
Abstract Background The allometric body shape index (ABSI) and hip index (HI), as well as multi-trait body shape phenotypes, have not yet been compared in their associations with inflammatory markers. The aim of this study was to examine the relationship between novel and traditional anthropometric indexes with inflammation using data from the European Prospective Investigation into Cancer and Nutrition (EPIC) and UK Biobank cohorts. Methods Participants from EPIC (n = 17,943, 69.1% women) and UK Biobank (n = 426,223, 53.2% women) with data on anthropometric indexes and C-reactive protein (CRP) were included in this cross-sectional analysis. A subset of women in EPIC also had at least one measurement for interleukins, tumour necrosis factor alpha, interferon gamma, leptin, and adiponectin. Four distinct body shape phenotypes were derived by a principal component (PC) analysis on height, weight, body mass index (BMI), waist (WC) and hip circumferences (HC), and waist-to-hip ratio (WHR). PC1 described overall adiposity, PC2 tall with low WHR, PC3 tall and centrally obese, and PC4 high BMI and weight with low WC and HC, suggesting an athletic phenotype. ABSI, HI, waist-to-height ratio and waist-to-hip index (WHI) were also calculated. Linear regression models were carried out separately in EPIC and UK Biobank stratified by sex and adjusted for age, smoking status, education, and physical activity. Results were additionally combined in a random-effects meta-analysis. Results Traditional anthropometric indexes, particularly BMI, WC, and weight were positively associated with CRP levels, in men and women. Body shape phenotypes also showed distinct associations with CRP. Specifically, PC2 showed inverse associations with CRP in EPIC and UK Biobank in both sexes, similarly to height. PC3 was inversely associated with CRP among women, whereas positive associations were observed among men. Conclusions Specific indexes of body size and body fat distribution showed differential associations with inflammation in adults. Notably, our results suggest that in women, height may mitigate the impact of a higher WC and HC on inflammation. This suggests that subtypes of adiposity exhibit substantial variation in their inflammatory potential, which may have implications for inflammation-related chronic diseases.
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- 2024
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25. On the use of the healthy lifestyle index to investigate specific disease outcomes
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Vivian Viallon, Heinz Freisling, Komodo Matta, Anne Østergaard Nannsen, Christina C. Dahm, Anne Tjønneland, Anne Kirstine Eriksen, Rudolf Kaaks, Verena A. Katzke, Matthias B. Schulze, Giovanna Masala, Giovanna Tagliabue, Vittorio Simeon, Rosario Tumino, Lorenzo Milani, Jeroen W. G. Derksen, Yvonne T. van der Schouw, Therese Haugdahl Nøst, Kristin Benjaminsen Borch, Torkjel M. Sandanger, J. Ramón Quirós, Miguel Rodriguez-Barranco, Catalina Bonet, Amaia Aizpurua-Atxega, Lluís Cirera, Marcela Guevara, Björn Sundström, Anna Winkvist, Alicia K. Heath, Marc J. Gunter, Elisabete Weiderpass, Mattias Johansson, and Pietro Ferrari
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Healthy lifestyle index ,Lifestyle factors ,Mortality ,Type 2 diabetes ,Cardiovascular diseases ,Cancer ,Medicine ,Science - Abstract
Abstract The healthy lifestyle index (HLI), defined as the unweighted sum of individual lifestyle components, was used to investigate the combined role of lifestyle factors on health-related outcomes. We introduced weighted outcome-specific versions of the HLI, where individual lifestyle components were weighted according to their associations with disease outcomes. Within the European Prospective Investigation into Cancer and Nutrition (EPIC), we examined the association between the standard and the outcome-specific HLIs and the risk of T2D, CVD, cancer, and all-cause premature mortality. Estimates of the hazard ratios (HRs), the Harrell’s C-index and the population attributable fractions (PAFs) were compared. For T2D, the HR for 1-SD increase of the standard and T2D-specific HLI were 0.66 (95% CI: 0.64, 0.67) and 0.43 (0.42, 0.44), respectively, and the C-index were 0.63 (0.62, 0.64) and 0.72 (0.72, 0.73). Similar, yet less pronounced differences in HR and C-index were observed for standard and outcome-specific estimates for cancer, CVD and all-cause mortality. PAF estimates for mortality before age 80 were 57% (55%, 58%) and 33% (32%, 34%) for standard and mortality-specific HLI, respectively. The use of outcome-specific HLI could improve the assessment of the role of lifestyle factors on disease outcomes, thus enhancing the definition of public health recommendations.
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- 2024
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26. Left main coronary artery disease: percutaneous coronary intervention or coronary artery bypass grafting? A critical review of current knowledge and contemporary debates
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Ioannis Panagiotopoulos, Francesk Mulita, Georgios-Ioannis Verras, Eleni Bekou, Admir Mulita, Manfred Dahm, Konstantinos Grapatsas, Assaf Sawafta, Anastasia Katinioti, Elias Liolis, Christos Pitros, Levan Tchabashvili, Konstantinos Tasios, Andreas Antzoulas, Spyros Papadoulas, Efstratios Koletsis, and Vasileios Leivaditis
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coronary artery bypass grafting ,percutaneous coronary intervention ,left main coronary artery disease ,contemporary debates. ,Surgery ,RD1-811 ,Internal medicine ,RC31-1245 - Abstract
Significant unprotected left main (ULM) disease is the highest-risk coronary artery lesion, carries high morbidity and mortality related to a large amount of myocardium supplied, and should undergo prompt revascularization. Among recent randomized controlled trials (RCTs), NOBLE failed to demonstrate non-inferiority of percutaneous coronary intervention (PCI) versus coronary artery bypass grafting (CABG). However, all the other RCTs have shown comparable outcomes. While CABG is associated with higher stroke rates at 30 days and 1 year, PCI is associated with increased spontaneous myocardial infarction (MI) events and the need for repeat revascularization. Furthermore, the benefit of CABG is more evident with the increased complexity of coronary artery disease. In current European and American guidelines, CABG is the standard of care for ULM disease. PCI is considered a reasonable alternative in selected patients (2a B-NR). There is still a great need for carefully designed RCTs with longer follow-up times to validate the role of recent technological and pharmacological regimens.
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- 2024
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27. Fistulous communication between the left main coronary artery and the pulmonary artery as a cause of angina
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Vasileios Leivaditis, Athanasios Papatriantafyllou, Konstantinos Grapatsas, Michail Galanis, Efstratios Koletsis, Nikolaos Charokopos, Francesk Mulita, Levan Tchabashvili, Konstantinos Tasios, Platon Dimopoulos, Andreas Antzoulas, Vasiliki Garantzioti, Nikolas Drakos, Spyros Papadoulas, Christos Pitros, and Manfred Dahm
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Surgery ,RD1-811 ,Internal medicine ,RC31-1245 - Published
- 2024
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28. Prescription medication use in the 10 years prior to diagnosis of young onset Alzheimer’s disease: a nationwide nested case-control study
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Line Damsgaard, Janet Janbek, Thomas Munk Laursen, Karsten Vestergaard, Hanne Gottrup, Christina Jensen-Dahm, and Gunhild Waldemar
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Young onset dementia ,Alzheimer’s disease ,Medication ,Early warning signs ,Registry-based ,Epidemiology ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Patients with young onset Alzheimer’s disease (YOAD) face long diagnostic delays. Prescription medication use may provide insights into early signs and symptoms, which may help facilitate timely diagnosis. Methods In a register-based nested case-control study, we examined medication use for everyone diagnosed with YOAD in a Danish memory clinic during 2016–2020 compared to cognitively healthy controls. Prescription medication use were grouped into 13 overall categories (alimentary tract and metabolism, blood and blood forming organs, cardiovascular system, dermatologicals, genitourinary system and sex hormones, systemic hormonal preparations, antiinfectives for systemic use, antineoplastic and immunomodulating agents, musculo-skeletal system, nervous system, antiparasitic products, respiratory system, and sensory organs). Further stratifications were done for predetermined subcategories with a use-prevalence of at least 5% in the study population. Conditional logistic regression produced odds ratios, which given the use of incidence-density matching is interpretable as incidence rate ratios (IRRs). The association between prescription medication use and subsequent YOAD diagnosis was examined in the entire 10-year study period and in three time-intervals. Results The study included 1745 YOAD cases and 5235 controls. In the main analysis, several overall categories showed significant associations with YOAD in one or more time-intervals, namely blood and blood forming organs and nervous system. Prescription medication use in the nervous system category was increased for YOAD cases compared to controls already 10->5 years prior to diagnosis (IRR 1.17, 95% CI 1.05–1.31), increasing to 1.57 (95% CI 1.39–1.78) in the year preceding diagnosis. This was largely driven by antidepressant and antipsychotic use, and especially prominent for first-time users. Conclusions In this study, medication use in several categories was associated with YOAD. Onset of treatment-requiring psychiatric symptoms such as depression or psychosis in mid-life may serve as potential early indicators of YOAD.
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- 2024
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29. Potential COVID-19 test fraud detection: Findings from a pilot study comparing conventional and statistical approaches
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Michael Bosnjak, Stefan Dahm, Ronny Kuhnert, Dennis Weihrauch, Angelika Schaffrath Rosario, Julia Hurraß, Patrick Schmich, and Lothar H. Wieler
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covid-19 test billing ,healthcare billing fraud ,statistical fraud detection ,Medicine - Abstract
Background: Some COVID-19 testing centres have reported manipulated test numbers for antigen tests/rapid tests. This study compares statistical approaches with traditional fraud detection methods. The extent of agreement between traditional and statistical methods was analysed, as well as the extent to which statistical approaches can identify additional cases of potential fraud. Methods: Outlier detection marking a high number of tests, modeling of the positivity rate (Poisson Regression), deviation from distributional assumptions regarding the first digit (Benford’s Law) and the last digit of the number of reported tests. The basis of the analyses were billing data (April 2021 to August 2022) from 907 testing centres in a German city. Results: The positive agreement between the conventional and statistical approaches (‘sensitivity’) was between 8.6% and 24.7%, the negative agreement (‘specificity’) was between 91.3% and 94.6%. The proportion of potentially fraudulent testing centres additionally identified by statistical approaches was between 7.0% and 8.7%. The combination of at least two statistical methods resulted in an optimal detection rate of test centres with previously undetected initial suspicion. Conclusions: The statistical approaches were more effective and systematic in identifying potentially fraudulent testing centres than the conventional methods. Testing centres should be urged to map paradata (e.g. timestamps of testing) in future pandemics.
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- 2024
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30. Hepatic steatosis, metabolic dysfunction and risk of mortality: findings from a multinational prospective cohort study
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Ana-Lucia Mayén, Mirna Sabra, Elom K. Aglago, Gabriel Perlemuter, Cosmin Voican, Ines Ramos, Charlotte Debras, Jessica Blanco, Vivian Viallon, Pietro Ferrari, Anja Olsen, Anne Tjønneland, Fie Langmann, Christina C. Dahm, Joseph Rothwell, Nasser Laouali, Chloé Marques, Matthias B. Schulze, Verena Katzke, Rudolf Kaaks, Domenico Palli, Alessandra Macciotta, Salvatore Panico, Rosario Tumino, Claudia Agnoli, Marta Farràs, Esther Molina-Montes, Pilar Amiano, María-Dolores Chirlaque, Jesús Castilla, Mårten Werner, Stina Bodén, Alicia K. Heath, Kostas Tsilidis, Dagfinn Aune, Elisabete Weiderpass, Heinz Freisling, Marc J. Gunter, and Mazda Jenab
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Hepatic steatosis ,Metabolic syndrome ,Mortality ,Phenotypic NASH ,MAFLD ,Medicine - Abstract
Abstract Background Non-alcoholic fatty liver disease (NAFLD) and metabolic syndrome (MetS) are implicated in the aetiology of non-communicable diseases. Our study aimed to evaluate associations between NAFLD and MetS with overall and cause-specific mortality. Methods We used dietary, lifestyle, anthropometric and metabolic biomarker data from a random subsample of 15,784 EPIC cohort participants. NAFLD was assessed using the fatty liver index (FLI) and MetS using the revised definition. Indices for metabolic dysfunction–associated fatty liver disease (MAFLD) were calculated. The individual associations of these indices with overall and cause-specific mortality were assessed using multivariable Cox proportional hazards models to estimate hazard ratios (HRs) and 95% confidence intervals (95%CIs). As a subobjective, risk associations with adaptations of new classifications of metabolic dysfunction–associated steatotic liver disease (MASLD) and metabolic and alcohol-related liver disease (MetALD) were also assessed. Results Among the 15,784 sub-cohort participants, a total of 1997 deaths occurred (835 due to cancer, 520 to CVD, 642 to other causes) over a median 15.6 (IQR, 12.3–17.1) years of follow-up. Compared to an FLI
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- 2024
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31. Redder than Red: Discovery of an Exceptionally Red L/T Transition Dwarf
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Schneider, Adam C., Burgasser, Adam J., Bruursema, Justice, Munn, Jeffrey A., Vrba, Frederick J., Caselden, Dan, Kabatnik, Martin, Rothermich, Austin, Sainio, Arttu, Bickle, Thomas P., Dahm, Scott E., Meisner, Aaron M., Kirkpatrick, J. Davy, Suarez, Genaro, Gagne, Jonathan, Faherty, Jacqueline K., Vos, Johanna M., Kuchner, Marc J., Williams, Stephen J., Gagliuffi, Daniella Bardalez, Aganze, Christian, Hsu, Chih-Chun, Theissen, Christopher, Cushing, Michael C., Marocco, Federico, Casewell, Sarah, Worlds, the Backyard, and Collaboration, Planet 9
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Astrophysics - Solar and Stellar Astrophysics ,Astrophysics - Earth and Planetary Astrophysics - Abstract
We present the discovery of CWISE J050626.96$+$073842.4 (CWISE J0506$+$0738), an L/T transition dwarf with extremely red near-infrared colors discovered through the Backyard Worlds: Planet 9 citizen science project. Photometry from UKIRT and CatWISE give a $(J-K)_{\rm MKO}$ color of 2.97$\pm$0.03 mag and a $J_{\rm MKO}-$W2 color of 4.93$\pm$0.02 mag, making CWISE J0506$+$0738 the reddest known free-floating L/T dwarf in both colors. We confirm the extremely red nature of CWISE J0506$+$0738 using Keck/NIRES near-infrared spectroscopy and establish that it is a low-gravity late-type L/T transition dwarf. The spectrum of CWISE J0506$+$0738 shows possible signatures of CH$_4$ absorption in its atmosphere, suggesting a colder effective temperature than other known, young, red L dwarfs. We assign a preliminary spectral type for this source of L8$\gamma$-T0$\gamma$. We tentatively find that CWISE J0506$+$0738 is variable at 3-5 $\mu$m based on multi-epoch WISE photometry. Proper motions derived from follow-up UKIRT observations combined with a radial velocity from our Keck/NIRES spectrum and a photometric distance estimate indicate a strong membership probability in the $\beta$ Pic moving group. A future parallax measurement will help to establish a more definitive moving group membership for this unusual object., Comment: Accepted to ApJ Letters
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- 2023
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32. Opioid rotation in patients initiated on oxycodone or morphine: a register study
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Ericson L, Ambring A, Björholt I, and Dahm P
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Medicine (General) ,R5-920 - Abstract
Lisa Ericson,1 Anneli Ambring,2 Ingela Björholt,1 Peter Dahm31Nordic Health Economics, 2Center of Registers, Region of Västra Götaland, 3Department of Anesthesia and Intensive Care and Pain Section, Sahlgrenska University Hospital, Gothenburg, SwedenPurpose: Strong opioids are recommended for the treatment of moderate to severe pain. However, some patients do not achieve a successful treatment outcome due to intolerable adverse events and/or inadequate analgesia, thus may benefit from switching to another opioid, a procedure known as "opioid rotation." The type of opioid at treatment initiation may influence the risk of opioid rotation and the objective of this study was to assess such rotation after treatment initiation with two alternative treatments, controlled-release (CR) oxycodone versus CR morphine in patients suffering from non-cancer pain.Method: The study reported here was a real-life study based on Swedish register data: the Prescribed Drug, National Patient, and Cause of Death registers. The captured data cover the entire Swedish population treated in specialist care. A statistical analysis plan was agreed and signed before data were accessed.Results: Data from 50,223 cases were included in the analyses. The risk of rotation was 19% higher in patients initiating treatment with morphine compared with oxycodone (hazard ratio 1.19; 95% confidence interval 1.11–1.27; P < 0.001), after adjusting for such baseline variables that were both significantly correlated with the outcome variable (time to rotation) and significantly different between the groups; age at index date, osteoarthritis and number of pain-related drugs.Conclusion: Patients with non-cancer pain who initiated treatment with CR morphine had a higher risk of opioid rotation than patients initiated with CR oxycodone.Keywords: nationwide data, Sweden, drug rotation, non-cancer pain
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- 2013
33. An international estimate of the prevalence of differing visual imagery abilities
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David J. Wright, Matthew W. Scott, Sarah N. Kraeutner, Pamela Barhoun, Maurizio Bertollo, Mark J. Campbell, Baptiste M. Waltzing, Stephan F. Dahm, Maaike Esselaar, Cornelia Frank, Robert M. Hardwick, Ian Fuelscher, Ben Marshall, Nicola J. Hodges, Christian Hyde, and Paul S. Holmes
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aphantasia ,hypophantasia ,hyperphantasia ,VVIQ ,visual imagery ,imagery ability ,Psychology ,BF1-990 - Abstract
The aim of this research was to establish prevalence estimates for aphantasia, hypophantasia, typical imagery ability, and hyperphantasia in a large multi-national cohort. In Study 1, the Vividness of Visual Imagery Questionnaire was completed by 3,049 participants. Results indicated prevalence estimates of 1.2% for aphantasia, 3% for hypophantasia, 89.9% for typical imagery ability, and 5.9% for hyperphantasia. In Study 2, to replicate these findings in a larger sample, the Study 1 data were combined with openly available data from previous prevalence studies to create a total sample of 9,063 participants. Re-analysis of this data confirmed prevalence estimates of 0.9% for aphantasia, 3.3% for hypophantasia, 89.7% for typical imagery ability, and 6.1% for hyperphantasia. These robust and up-to-date estimates provide enhanced clarity to researchers regarding the prevalence of differing visual imagery abilities and provide a platform for future studies exploring the role of visual imagery in various cognitive and behavioral tasks.
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- 2024
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34. Urban thoracic trauma: diagnosis and initial treatment of non-cardiac injuries in adults
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Vasileios Leivaditis, Athanasios Papatriantafyllou, Ioanna Akrida, Michail Galanis, Emmanouil Dimopoulos, Anastasia Papaporfyriou, Benjamin Ehle, Efstratios Koletsis, Nikolaos Charokopos, George Pappas-Gogos, Francesk Mulita, Georgios-Ioannis Verras, Konstantinos Tasios, Vasiliki Garantzioti, Levan Tchabashvili, Manfred Dahm, and Konstantinos Grapatsas
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hematothorax ,pneumthorax ,tho-racic trauma ,urban trauma ,Medicine - Abstract
This comprehensive review aims to delineate the prevailing non-cardiac thoracic injuries occurring in urban environments following initial on-site treatment and subsequent admission to hospital emergency departments. Our study involved a rigorous search within the PubMed database, employing key phrases and their combinations, including "thoracic injury," "thoracic trauma," "haemothorax," "lung contusion," "traumatic pneumothorax," "rib fractures," and "flail chest." We focused on original research articles and reviews. Non-cardiac thoracic injuries exhibit a high prevalence, often affecting poly-trauma patients, and contributing to up to 35% of polytrauma-related fatalities. Furthermore, severe thoracic injuries can result in a substantial 5% mortality rate. This review provides insights into clinical entities such as lung contusion, traumatic haemothorax, pneumothorax, rib fractures, and sternal fractures. Thoracic injuries represent a frequent and significant clinical concern for emergency department physicians and thoracic surgeons, warranting thorough understanding and timely intervention.
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- 2024
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35. Addressing diagnostic uncertainty and excellence in emergency care—from multicountry policy analysis to communication practice in Australian emergency departments: a multimethod study protocol
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Carmel Crock, Maria R Dahm, Laura J Chien, Jen Morris, Lucy Lutze, and Sam Scanlan
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Medicine - Abstract
Introduction Communication failings may compromise the diagnostic process and pose a risk to quality of care and patient safety. With a focus on emergency care settings, this project aims to examine the critical role and impact of communication in the diagnostic process, including in diagnosis-related health and research policy, and diagnostic patient–clinician interactions in emergency departments (EDs).Methods and analysis This project uses a qualitatively driven multimethod design integrating findings from two research studies to gain a comprehensive understanding of the impact of context and communication on diagnostic excellence from diverse perspectives. Study 1 will map the diagnostic policy and practice landscape in Australia, New Zealand and the USA through qualitative expert interviews and policy analysis. Study 2 will investigate the communication of uncertainty in diagnostic interactions through a qualitative ethnography of two metropolitan Australian ED sites incorporating observations, field notes, video-recorded interactions, semistructured interviews and written medical documentation, including linguistic analysis of recorded diagnostic interactions and written documentation. This study will also feature a description of clinician, patient and carer perspectives on, and involvement in, interpersonal diagnostic interactions and will provide crucial new insights into the impact of communicating diagnostic uncertainty for these groups. Project-spanning patient and stakeholder involvement strategies will build research capacity among healthcare consumers via educational workshops, engage with community stakeholders in analysis and build consensus among stakeholders.Ethics and dissemination The project has received ethical approvals from the Human Research Ethics Committee at ACT Health, Northern Sydney Local Health District and the Australian National University. Findings will be disseminated to academic peers, clinicians and healthcare consumers, health policy-makers and the general public, using local and international academic and consumer channels (journals, evidence briefs and conferences) and outreach activities (workshops and seminars).
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- 2024
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36. ARNT2 controls prefrontal somatostatin interneurons mediating affective empathy
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Jiye Choi, Seungmoon Jung, Jieun Kim, Dahm So, Arie Kim, Sowon Kim, Sungjoon Choi, Eunsu Yoo, Jee Yeon Kim, Yoon Cheol Jang, Hyoin Lee, Jeongyeon Kim, Hee-Sup Shin, Sehyun Chae, and Sehoon Keum
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CP: Neuroscience ,Biology (General) ,QH301-705.5 - Abstract
Summary: Empathy, crucial for social interaction, is impaired across various neuropsychiatric conditions. However, the genetic and neural underpinnings of empathy variability remain elusive. By combining forward genetic mapping with transcriptome analysis, we discover that aryl hydrocarbon receptor nuclear translocator 2 (ARNT2) is a key driver modulating observational fear, a basic form of affective empathy. Disrupted ARNT2 expression in the anterior cingulate cortex (ACC) reduces affect sharing in mice. Specifically, selective ARNT2 ablation in somatostatin (SST)-expressing interneurons leads to decreased pyramidal cell excitability, increased spontaneous firing, aberrant Ca2+ dynamics, and disrupted theta oscillations in the ACC, resulting in reduced vicarious freezing. We further demonstrate that ARNT2-expressing SST interneurons govern affective state discrimination, uncovering a potential mechanism by which ARNT2 polymorphisms associate with emotion recognition in humans. Our findings advance our understanding of the molecular mechanism controlling empathic capacity and highlight the neural substrates underlying social affective dysfunctions in psychiatric disorders.
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- 2024
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37. Contextualising adverse events of special interest to characterise the baseline incidence rates in 24 million patients with COVID-19 across 26 databases: a multinational retrospective cohort study
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Voss, Erica A, Shoaibi, Azza, Lai, Lana Yin Hui, Blacketer, Clair, Alshammari, Thamir, Makadia, Rupa, Haynes, Kevin, Sena, Anthony G, Rao, Gowtham, van Sandijk, Sebastiaan, Fraboulet, Clement, Boyer, Laurent, Le Carrour, Tanguy, Horban, Scott, Morales, Daniel R, Roldán, Jordi Martínez, Ramírez-Anguita, Juan Manuel, Mayer, Miguel A, de Wilde, Marcel, John, Luis H, Duarte-Salles, Talita, Roel, Elena, Pistillo, Andrea, Kolde, Raivo, Maljković, Filip, Denaxas, Spiros, Papez, Vaclav, Kahn, Michael G, Natarajan, Karthik, Reich, Christian, Secora, Alex, Minty, Evan P, Shah, Nigam H, Posada, Jose D, Morales, Maria Teresa Garcia, Bosca, Diego, Juanino, Honorio Cadenas, Holgado, Antonio Diaz, Jiménez, Miguel Pedrera, Balazote, Pablo Serrano, Barrio, Noelia García, Şen, Selçuk, Üresin, Ali Yağız, Erdogan, Baris, Belmans, Luc, Byttebier, Geert, Malbrain, Manu LNG, Dedman, Daniel J, Cuccu, Zara, Vashisht, Rohit, Butte, Atul J, Patel, Ayan, Dahm, Lisa, Han, Cora, Bu, Fan, Arshad, Faaizah, Ostropolets, Anna, Nyberg, Fredrik, Hripcsak, George, Suchard, Marc A, Prieto-Alhambra, Dani, Rijnbeek, Peter R, Schuemie, Martijn J, and Ryan, Patrick B
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Lung ,Brain Disorders ,Patient Safety ,Hematology ,Infectious Diseases ,2.4 Surveillance and distribution ,Aetiology ,Good Health and Well Being ,COVID-19 ,Observational research ,OMOP CDM ,Adverse events of special interest - Abstract
BackgroundAdverse events of special interest (AESIs) were pre-specified to be monitored for the COVID-19 vaccines. Some AESIs are not only associated with the vaccines, but with COVID-19. Our aim was to characterise the incidence rates of AESIs following SARS-CoV-2 infection in patients and compare these to historical rates in the general population.MethodsA multi-national cohort study with data from primary care, electronic health records, and insurance claims mapped to a common data model. This study's evidence was collected between Jan 1, 2017 and the conclusion of each database (which ranged from Jul 2020 to May 2022). The 16 pre-specified prevalent AESIs were: acute myocardial infarction, anaphylaxis, appendicitis, Bell's palsy, deep vein thrombosis, disseminated intravascular coagulation, encephalomyelitis, Guillain- Barré syndrome, haemorrhagic stroke, non-haemorrhagic stroke, immune thrombocytopenia, myocarditis/pericarditis, narcolepsy, pulmonary embolism, transverse myelitis, and thrombosis with thrombocytopenia. Age-sex standardised incidence rate ratios (SIR) were estimated to compare post-COVID-19 to pre-pandemic rates in each of the databases.FindingsSubstantial heterogeneity by age was seen for AESI rates, with some clearly increasing with age but others following the opposite trend. Similarly, differences were also observed across databases for same health outcome and age-sex strata. All studied AESIs appeared consistently more common in the post-COVID-19 compared to the historical cohorts, with related meta-analytic SIRs ranging from 1.32 (1.05 to 1.66) for narcolepsy to 11.70 (10.10 to 13.70) for pulmonary embolism.InterpretationOur findings suggest all AESIs are more common after COVID-19 than in the general population. Thromboembolic events were particularly common, and over 10-fold more so. More research is needed to contextualise post-COVID-19 complications in the longer term.FundingNone.
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- 2023
38. Meniscal and Articular Cartilage Predictors of Outcome After Revision ACL Reconstruction: A 6-Year Follow-up Cohort Study.
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Wright, Rick, Huston, Laura, Haas, Amanda, Pennings, Jacquelyn, Allen, Christina, Cooper, Daniel, DeBerardino, Thomas, Dunn, Warren, Lantz, Brett, Spindler, Kurt, Stuart, Michael, Albright, John, Amendola, Annunziato, Andrish, Jack, Annunziata, Christopher, Arciero, Robert, Bach, Bernard, Baker, Champ, Bartolozzi, Arthur, Baumgarten, Keith, Bechler, Jeffery, Berg, Jeffrey, Bernas, Geoffrey, Brockmeier, Stephen, Brophy, Robert, Bush-Joseph, Charles, Butler, J, Campbell, John, Carey, James, Carpenter, James, Cole, Brian, Cooper, Jonathan, Cox, Charles, Creighton, R, Dahm, Diane, David, Tal, Flanigan, David, Frederick, Robert, Ganley, Theodore, Garofoli, Elizabeth, Gatt, Charles, Gecha, Steven, Giffin, James, Hame, Sharon, Hannafin, Jo, Harner, Christopher, Harris, Norman, Hechtman, Keith, Hershman, Elliott, Hoellrich, Rudolf, Johnson, David, Johnson, Timothy, Jones, Morgan, Kaeding, Christopher, Kamath, Ganesh, Klootwyk, Thomas, Levy, Bruce, Maiers, G, Marx, Robert, Matava, Matthew, Mathien, Gregory, McAllister, David, McCarty, Eric, McCormack, Robert, Miller, Bruce, Nissen, Carl, ONeill, Daniel, Owens, Brett, Parker, Richard, Purnell, Mark, Ramappa, Arun, Rauh, Michael, Rettig, Arthur, Sekiya, Jon, Shea, Kevin, Sherman, Orrin, Slauterbeck, James, Smith, Matthew, Spang, Jeffrey, Svoboda, Ltc, Taft, Timothy, Tenuta, Joachim, Tingstad, Edwin, Vidal, Armando, Viskontas, Darius, White, Richard, Williams, James, Wolcott, Michelle, Wolf, Brian, York, James, and Ma, C Benjamin
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anterior cruciate ligament (ACL) ,knee articular cartilage ,meniscus ,outcomes ,revision ACL reconstruction ,Male ,Humans ,Adult ,Follow-Up Studies ,Cohort Studies ,Cartilage ,Articular ,Anterior Cruciate Ligament Injuries ,Menisci ,Tibial ,Osteoarthritis - Abstract
BACKGROUND: Meniscal and chondral damage is common in the patient undergoing revision anterior cruciate ligament (ACL) reconstruction. PURPOSE: To determine if meniscal and/or articular cartilage pathology at the time of revision ACL surgery significantly influences a patients outcome at 6-year follow-up. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: Patients undergoing revision ACL reconstruction were prospectively enrolled between 2006 and 2011. Data collection included baseline demographics, surgical technique, pathology, treatment, and scores from 4 validated patient-reported outcome instruments: International Knee Documentation Committee (IKDC), Knee injury and Osteoarthritis Outcome Score (KOOS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and Marx Activity Rating Scale. Patients were followed up at 6 years and asked to complete the identical set of outcome instruments. Regression analysis assessed the meniscal and articular cartilage pathology risk factors for clinical outcomes 6 years after revision ACL reconstruction. RESULTS: An overall 1234 patients were enrolled (716 males, 58%; median age, 26 years). Surgeons reported the pathology at the time of revision surgery in the medial meniscus (45%), lateral meniscus (36%), medial femoral condyle (43%), lateral femoral condyle (29%), medial tibial plateau (11%), lateral tibial plateau (17%), patella (30%), and trochlea (21%). Six-year follow-up was obtained on 79% of the sample (980/1234). Meniscal pathology and articular cartilage pathology (medial femoral condyle, lateral femoral condyle, lateral tibial plateau, trochlea, and patella) were significant drivers of poorer patient-reported outcomes at 6 years (IKDC, KOOS, WOMAC, and Marx). The most consistent factors driving outcomes were having a medial meniscal excision (either before or at the time of revision surgery) and patellofemoral articular cartilage pathology. Six-year Marx activity levels were negatively affected by having either a repair/excision of the medial meniscus (odds ratio range, 1.45-1.72; P≤ .04) or grade 3-4 patellar chondrosis (odds ratio, 1.72; P = .04). Meniscal pathology occurring before the index revision surgery negatively affected scores on all KOOS subscales except for sports/recreation (P < .05). Articular cartilage pathology significantly impaired all KOOS subscale scores (P < .05). Lower baseline outcome scores, higher body mass index, being a smoker, and incurring subsequent surgery all significantly increased the odds of reporting poorer clinical outcomes at 6 years. CONCLUSION: Meniscal and chondral pathology at the time of revision ACL reconstruction has continued significant detrimental effects on patient-reported outcomes at 6 years after revision surgery.
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- 2023
39. Lifestyle changes in middle age and risk of cancer: evidence from the European Prospective Investigation into Cancer and Nutrition
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Botteri, Edoardo, Peveri, Giulia, Berstad, Paula, Bagnardi, Vincenzo, Hoff, Geir, Heath, Alicia K., Cross, Amanda J., Vineis, Paolo, Dossus, Laure, Johansson, Mattias, Freisling, Heinz, Matta, Komodo, Huybrechts, Inge, Chen, Sairah L. F., B. Borch, Kristin, Sandanger, Torkjel M., H. Nøst, Therese, Dahm, Christina C., Antoniussen, Christian S., Tin Tin, Sandar, Fournier, Agnès, Marques, Chloé, Artaud, Fanny, Sánchez, Maria-José, Guevara, Marcela, Santiuste, Carmen, Agudo, Antonio, Bajracharya, Rashmita, Katzke, Verena, Ricceri, Fulvio, Agnoli, Claudia, Bergmann, Manuela M., Schulze, Matthias B., Panico, Salvatore, Masala, Giovanna, Tjønneland, Anne, Olsen, Anja, Stocks, Tanja, Manjer, Jonas, Aizpurua-Atxega, Amaia, Weiderpass, Elisabete, Riboli, Elio, Gunter, Marc J., and Ferrari, Pietro
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- 2024
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40. Dietary amino acids and risk of stroke subtypes: a prospective analysis of 356,000 participants in seven European countries
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Tong, Tammy Y. N., Clarke, Robert, Schmidt, Julie A., Huybrechts, Inge, Noor, Urwah, Forouhi, Nita G., Imamura, Fumiaki, Travis, Ruth C., Weiderpass, Elisabete, Aleksandrova, Krasimira, Dahm, Christina C., van der Schouw, Yvonne T., Overvad, Kim, Kyrø, Cecilie, Tjønneland, Anne, Kaaks, Rudolf, Katzke, Verena, Schiborn, Catarina, Schulze, Matthias B., Mayen-Chacon, Ana-Lucia, Masala, Giovanna, Sieri, Sabina, de Magistris, Maria Santucci, Tumino, Rosario, Sacerdote, Carlotta, Boer, Jolanda M. A., Verschuren, W. M. Monique, Brustad, Magritt, Nøst, Therese Haugdahl, Crous-Bou, Marta, Petrova, Dafina, Amiano, Pilar, Huerta, José María, Moreno-Iribas, Conchi, Engström, Gunnar, Melander, Olle, Johansson, Kristina, Lindvall, Kristina, Aglago, Elom K., Heath, Alicia K., Butterworth, Adam S., Danesh, John, and Key, Timothy J.
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- 2024
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41. Certainty of Evidence Assessment in Systematic Reviews Published by High-Impact Sports Science Journals: A Meta-epidemiological Study
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Siedler, Madelin R., Harris, Katie N., Rodriguez, Christian, Lewis, Megan H., Semidey-Lamadrid, Priscila, Stratton, Matthew T., Blacutt, Miguel, Hosseini, Zeinab, Falck-Ytter, Yngve, Mustafa, Reem A., Sultan, Shahnaz, Dahm, Philipp, Morgan, Rebecca L., and Murad, M. Hassan
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- 2024
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42. Healthcare utilization prior to a diagnosis of young-onset Alzheimer’s disease: a nationwide nested case–control study
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Damsgaard, Line, Janbek, Janet, Laursen, Thomas Munk, Waldemar, Gunhild, and Jensen-Dahm, Christina
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- 2023
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43. MRI surveillance after translabyrinthine vestibular schwannoma resection and cochlear implantation: is it feasible?
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Dahm, Valerie, Schwarz-Nemec, Ursula, Arnoldner, Michael A., Liepins, Rudolfs, Auinger, Alice B., Matula, Christian, and Arnoldner, Christoph
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- 2023
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44. Healthy lifestyle change and all-cause and cancer mortality in the European Prospective Investigation into Cancer and Nutrition cohort
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Komodo Matta, Vivian Viallon, Edoardo Botteri, Giulia Peveri, Christina Dahm, Anne Østergaard Nannsen, Anja Olsen, Anne Tjønneland, Alexis Elbaz, Fanny Artaud, Chloé Marques, Rudolf Kaaks, Verena Katzke, Matthias B. Schulze, Erand Llanaj, Giovanna Masala, Valeria Pala, Salvatore Panico, Rosario Tumino, Fulvio Ricceri, Jeroen W. G. Derksen, Therese Haugdahl Nøst, Torkjel M. Sandanger, Kristin Benjaminsen Borch, J. Ramón Quirós, Carlota Castro-Espin, Maria-José Sánchez, Amaia Aizpurua Atxega, Lluís Cirera, Marcela Guevara, Jonas Manjer, Sandar Tin Tin, Alicia Heath, Mathilde Touvier, Marcel Goldberg, Elisabete Weiderpass, Marc J. Gunter, Heinz Freisling, Elio Riboli, and Pietro Ferrari
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Healthy lifestyle index ,Composite score ,Change score ,Mortality ,Cancer ,Longitudinal ,Medicine - Abstract
Abstract Background Healthy lifestyles are inversely associated with the risk of noncommunicable diseases, which are leading causes of death. However, few studies have used longitudinal data to assess the impact of changing lifestyle behaviours on all-cause and cancer mortality. Methods Within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort, lifestyle profiles of 308,497 cancer-free adults (71% female) aged 35–70 years at recruitment across nine countries were assessed with baseline and follow-up questionnaires administered on average of 7 years apart. A healthy lifestyle index (HLI), assessed at two time points, combined information on smoking status, alcohol intake, body mass index, and physical activity, and ranged from 0 to 16 units. A change score was calculated as the difference between HLI at baseline and follow-up. Associations between HLI change and all-cause and cancer mortality were modelled with Cox regression, and the impact of changing HLI on accelerating mortality rate was estimated by rate advancement periods (RAP, in years). Results After the follow-up questionnaire, participants were followed for an average of 9.9 years, with 21,696 deaths (8407 cancer deaths) documented. Compared to participants whose HLIs remained stable (within one unit), improving HLI by more than one unit was inversely associated with all-cause and cancer mortality (hazard ratio [HR]: 0.84; 95% confidence interval [CI]: 0.81, 0.88; and HR: 0.87; 95% CI: 0.82, 0.92; respectively), while worsening HLI by more than one unit was associated with an increase in mortality (all-cause mortality HR: 1.26; 95% CI: 1.20, 1.33; cancer mortality HR: 1.19; 95% CI: 1.09, 1.29). Participants who worsened HLI by more than one advanced their risk of death by 1.62 (1.44, 1.96) years, while participants who improved HLI by the same amount delayed their risk of death by 1.19 (0.65, 2.32) years, compared to those with stable HLI. Conclusions Making healthier lifestyle changes during adulthood was inversely associated with all-cause and cancer mortality and delayed risk of death. Conversely, making unhealthier lifestyle changes was positively associated with mortality and an accelerated risk of death.
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- 2024
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45. Challenges and pitfalls in the perioperative management of mediastinal mass syndrome: an up-to-date review
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Vasileios Leivaditis, Afroditi Pavlakou, Konstantinos Grapatsas, Francesk Mulita, Efstratios Koletsis, Athanasios Papatriantafyllou, Michail Galanis, Paraskevi F. Katsakiori, Konstantinos Skevis, Eleftherios Nikolaidis, Manfred Dahm, Konstantinos Tasios, Levan Tchabashvili, Benjamin Ehle, and Nikolaos Baltayiannis
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complications ,anesthetic management ,airway obstruction ,perioperative management ,pitfalls ,mediastinal mass syndrome. ,Surgery ,RD1-811 ,Internal medicine ,RC31-1245 - Abstract
The perioperative management of patients undergoing mediastinal mass operations presents a persistent challenge across multiple clinical specialties. General anesthesia administration further increases the risk of perioperative cardiorespiratory decompensation. The interdisciplinary team plays a crucial role in ensuring a safe perioperative period. However, due to the rarity and variability of mediastinal mass syndromes, specific management protocols are lacking. This review aims to outline the multitude of challenges and pitfalls encountered during perioperative management in patients with the mediastinal mass syndrome. We describe diagnostic evaluation, preoperative optimization, intraoperative considerations, and postoperative care strategies, emphasizing the paramount significance of a multidisciplinary approach and personalized treatment plans. Preoperative multidisciplinary discussions, meticulous anesthetic management, and well-established protocols for emergency situations are pivotal to ensuring patient safety. Healthcare providers involved in the care of patients with mediastinal mass syndrome must grasp these challenges and pitfalls, enabling them to deliver safe and effective perioperative management.
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- 2024
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46. Anti-repeating earthquakes and how to explain them
- Author
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Simone Cesca, Peter Niemz, Torsten Dahm, and Satoshi Ide
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Geology ,QE1-996.5 ,Environmental sciences ,GE1-350 - Abstract
Abstract Repeating earthquakes, or repeaters, affecting overlapping rupture patches with a similar focal mechanism, have important implications to track fault slip rates, aseismic deformation, slow earthquakes and earthquake nucleation processes. They are often detected based on highly similar waveforms. Here, we discuss earthquakes with highly anti-correlated waveforms, denoting a reversed seismogenic process at the same or a neighbouring location, which we refer to as true and quasi anti-repeaters. We first report a range such observations in different environments, including volcano seismicity, intermediate depth seismicity and injection-induced microseismicity. Then, we review conceptual models proposed to explain them. True and quasi anti-repeaters can be robustly identified via a three-component single station or distributed network data. They are key indicators for stress perturbation transients or local stress heterogeneities. Since most of these observations were explained as the response to fluid migration processes, they may help to identify and track fluid movements in the subsurface.
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- 2024
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47. Reconstruction of low dimensional electronic states by altering the chemical arrangement at the SrTiO3 surface
- Author
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Li, Hang, Brito, Walber H., Guedes, Eduardo B., Chikina, Alla, Dahm, Rasmus T., Christensen, Dennis V., Yun, Shinhee, Chiabrera, Francesco M., Plumb, Nicholas C., Shi, Ming, Pryds, Nini, and Radovic, Milan
- Subjects
Condensed Matter - Strongly Correlated Electrons ,Condensed Matter - Materials Science - Abstract
Developing reliable methods for modulating the electronic structure of the two-dimensional electron gas (2DEG) in SrTiO3 is crucial for utilizing its full potential and inducing novel properties. Here, we show that relatively simple surface preparation reconstructs the 2DEG of SrTiO3 (STO) surface, leading to a Lifshitz-like transition. Combining experimental methods, such as angle-resolved photoemission spectroscopy (ARPES) and X-ray photoemission spectroscopy (XPS) with ab initio calculations, we find that the modulation of the surface band structures is primarily attributed to the reorganization of the chemical composition. In addition, ARPES experiments demonstrate that vacuum ultraviolet (VUV) light can be efficiently employed to alter the band renormalization of the 2DEG system and control the electron-phonon interaction (EPI). Our study provides a robust and straightforward route to stabilize and tune the low-dimensional electronic structure via the chemical degeneracy of the STO surface.
- Published
- 2022
48. A change of origin and an update to SIS100 simulation geometries
- Author
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Clerkin, E. and Dahm, P.
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Physics - Instrumentation and Detectors ,High Energy Physics - Experiment ,High Energy Physics - Phenomenology - Abstract
An update on decisions made during 2021 in relation to the simulation geometries for the future CBM experiment at FAIR., Comment: 3 pages, 3 tables
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- 2022
- Full Text
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49. An Obituary for the European Association of Urology Guidelines on Thromboprophylaxis in Urological Surgery (2017–2023)
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Philipp Dahm and Daniel Antonio González Padilla
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Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2024
- Full Text
- View/download PDF
50. Real-world utilization of SARS-CoV-2 serological testing in RNA positive patients across the United States
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Rodriguez-Watson, Carla V, Sheils, Natalie E, Louder, Anthony M, Eldridge, Elizabeth H, Lin, Nancy D, Pollock, Benjamin D, Gatz, Jennifer L, Grannis, Shaun J, Vashisht, Rohit, Ghauri, Kanwal, Valo, Gina, Chakravarty, Aloka G, Lasky, Tamar, Jung, Mary, Lovell, Stephen L, Major, Jacqueline M, Kabelac, Carly, Knepper, Camille, Leonard, Sandy, Embi, Peter J, Jenkinson, William G, Klesh, Reyna, Garner, Omai B, Patel, Ayan, Dahm, Lisa, Barin, Aiden, Cooper, Dan M, Andriola, Tom, Byington, Carrie L, Crews, Bridgit O, Butte, Atul J, and Allen, Jeff
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General Science & Technology - Abstract
Background As diagnostic tests for COVID-19 were broadly deployed under Emergency Use Authorization, there emerged a need to understand the real-world utilization and performance of serological testing across the United States. Methods Six health systems contributed electronic health records and/or claims data, jointly developed a master protocol, and used it to execute the analysis in parallel. We used descriptive statistics to examine demographic, clinical, and geographic characteristics of serology testing among patients with RNA positive for SARS-CoV-2. Results Across datasets, we observed 930,669 individuals with positive RNA for SARS-CoV-2. Of these, 35,806 (4%) were serotested within 90 days; 15% of which occurred 30%) in some datasets—limiting our ability to examine differences in serological testing by race. In datasets where race/ethnicity information was available, we observed a greater distribution of White individuals among those serotested; however, the time between RNA and serology tests appeared shorter in Black compared to White individuals. Test manufacturer data was available in half of the datasets contributing to the analysis. Conclusion Our results inform the underlying context of serotesting during the first year of the COVID-19 pandemic and differences observed between claims and EHR data sources–a critical first step to understanding the real-world accuracy of serological tests. Incomplete reporting of race/ethnicity data and a limited ability to link test manufacturer data, lab results, and clinical data challenge the ability to assess the real-world performance of SARS-CoV-2 tests in different contexts and the overall U.S. response to current and future disease pandemics.
- Published
- 2023
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