5,055 results on '"van Diepen A"'
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2. Treading Carefully: The Environment and Political Participation in Science Education
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Lynda Dunlop, Lucy Atkinson, Claes Malmberg, Maria Turkenburg-van Diepen, and Anders Urbas
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Politics and science are inextricably connected, particularly in relation to the climate emergency and other environmental crises, yet science education is an often overlooked site for engaging with the political dimensions of environmental issues. This study examines how science teachers in England experience politics--specifically political participation--in relation to the environment in school science, against a background of increased obstruction in civic space. The study draws on an analysis of theoretically informed in-depth interviews with eleven science teachers about their experiences of political participation in relation to environmental issues. We find that politics enters the science classroom primarily through informal conversations initiated by students rather than planned by teachers. When planned for, the emphasis is on individual, latent-political (civic) engagement rather than manifest political participation. We argue that this is a symptom of the post-political condition and call for a more enabling environment for discussing the strengths and limitations of different forms of political participation in school science.
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- 2024
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3. FFT-acceleration and stabilization of the 3D Marching-on-in-Time Contrast Current Density Volume Integral Equation for scattering from high contrast dielectrics
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van Diepen, Petrus W. N., van Beurden, Martijn C., and Dilz, Roeland J.
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Mathematics - Numerical Analysis - Abstract
An implicit causal space-time Galerkin scheme applied to the contrast current density volume integral equation gives rise to a marching-on-in-time scheme known as the MOT-JVIE, which is accelerated and stabilized via a fully embedded FIR filter to compute the electromagnetic scattering from high permittivity dielectric objects discretized with over a million voxels. A review of two different acceleration approaches previously developed for two-dimensional time-domain surface integral equations based on fast Fourier transforms (FFTs), leads to an understanding why these schemes obtain the same order of acceleration and the extension of this FFT-acceleration to the three-dimensional MOT-JVIE. The positive definite stability analysis (PDSA) for the MOT-JVIE shows that the number of voxels for a stable MOT-JVIE discretization is restricted by the finite precision of the matrix elements. The application of the PDSA provides the insight that stability can be enforced through regularization, at the cost of accuracy. To minimize the impact in accuracy, FIR-regularization is introduced, which is based on low group-delay linear-phase high-pass FIR-filters. We demonstrate the capabilities of the FFT-accelerated FIR-regularized MOT-JVIE for a number of numerical experiments with high permittivity dielectric scatterers., Comment: Submitted to Progress In Electromagnetic Research
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- 2024
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4. Classification methods of pulmonary contusion based on chest CT and the association with in-hospital outcomes: a systematic review of literature
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Van Diepen, Max R., Wijffels, Mathieu M. E., Verhofstad, Michael H. J., and Van Lieshout, Esther M. M.
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- 2024
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5. Treading carefully: the environment and political participation in science education
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Dunlop, Lynda, Atkinson, Lucy, Malmberg, Claes, Turkenburg-van Diepen, Maria, and Urbas, Anders
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- 2024
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6. The Etiology of Advanced Chronic Kidney Disease in Southeast Asia: A Meta-analysis
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Hustrini, Ni Made, Susalit, Endang, Widjaja, Felix Firyanto, Khumaedi, Anandhara Indriani, Dekkers, Olaf M., van Diepen, Merel, and Rotmans, Joris I.
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- 2024
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7. Validity of the Capacity to Work Index: Development of an Instrument to Measure Work Capacity in Relation to Depression and Anxiety in the General Working Population
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Hensing, Gunnel, van Diepen, Cornelia, Boström, Maria, and Bertilsson, Monica
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- 2024
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8. Mental health sequelae in survivors of cardiogenic shock complicating myocardial infarction. A population-based cohort study
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Fernando, Shannon M., Qureshi, Danial, Talarico, Robert, Vigod, Simone N., McIsaac, Daniel I., Sterling, Lee H., van Diepen, Sean, Price, Susanna, Di Santo, Pietro, Kyeremanteng, Kwadwo, Fan, Eddy, Needham, Dale M., Brodie, Daniel, Bienvenu, Oscar Joseph, Combes, Alain, Slutsky, Arthur S., Scales, Damon C., Herridge, Margaret S., Thiele, Holger, Hibbert, Benjamin, Tanuseputro, Peter, and Mathew, Rebecca
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- 2024
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9. Unveiling salinity-driven shifts in microbial community composition across compartments of naturally saline inland streams
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Ayayee, Paul A., Custer, Gordon F., Tronstad, Lusha M., and van Diepen, Linda T. A.
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- 2024
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10. The Influence of Contrast and Temporal Expansion on the Marching-on-in-Time Contrast Current Density Volume Integral Equation
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van Diepen, Petrus W. N., van Beurden, Martijn C., and Dilz, Roeland J.
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Physics - Computational Physics - Abstract
The contrast current density volume integral equation, discretized with piecewise constant spatial basis and test functions and Dirac-delta temporal test functions and the piecewise polynomial temporal basis functions, results in a causal implicit marching-on-in-time scheme that we refer to as the marching-on-in-time contrast current density volume integral equation (MOT-JVIE). The companion matrix stability analysis of the MOT-JVIE solver shows that for a fixed spatial and temporal step size, the stability is independent of the scatterer's dielectric contrast for quadratic spline temporal basis functions. Whereas, Lagrange and cubic spline exhibit instabilities at higher contrast. We relate this stability performance to the expansion and testing procedure in time. We further illustrate the capabilities of the MOT-JVIE based on quadratic spline temporal basis functions by: comparing the MOT-JVIE solution to time-domain results from literature and frequency-domain results from a commercial combined field integral equation solver. Finally, we present a long time sequence for a high-constrast scatterer discretized with 24,000 spatial unknowns., Comment: 15 pages, 33 figures, correction of the labeling in Figure 3, published in PIER B
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- 2023
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11. A self-amplifying RNA RSV prefusion-F vaccine elicits potent immunity in pre-exposed and naïve non-human primates
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Aneesh Vijayan, Ronald Vogels, Rachel Groppo, Yi Jin, Selina Khan, Mirjam Van Kampen, Sytze Jorritsma, Satish Boedhoe, Miranda Baert, Harry van Diepen, Harmjan Kuipers, Jan Serroyen, Jorge Reyes- del Valle, Ann Broman, Lannie Nguyen, Sayoni Ray, Bader Jarai, Jayant Arora, Michelle Lifton, Benjamin Mildenberg, Georgeanna Morton, Sampa Santra, Tamar R. Grossman, Hanneke Schuitemaker, Jerome Custers, and Roland Zahn
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Science - Abstract
Abstract Newly approved subunit and mRNA vaccines for respiratory syncytial virus (RSV) demonstrate effectiveness in preventing severe disease, with protection exceeding 80% primarily through the generation of antibodies. An alternative vaccine platform called self-amplifying RNA (saRNA) holds promise in eliciting humoral and cellular immune responses. We evaluate the immunogenicity of a lipid nanoparticle (LNP)-formulated saRNA vaccine called SMARRT.RSV.preF, encoding a stabilized form of the RSV fusion protein, in female mice and in non-human primates (NHPs) that are either RSV-naïve or previously infected. Intramuscular vaccination with SMARRT.RSV.preF vaccine induces RSV neutralizing antibodies and cellular responses in naïve mice and NHPs. Importantly, a single dose of the vaccine in RSV pre-exposed NHPs elicits a dose-dependent anamnestic humoral immune response comparable to a subunit RSV preF vaccine. Notably, SMARRT.RSV.preF immunization significantly increases polyfunctional RSV.F specific memory CD4+ and CD8+ T-cells compared to RSV.preF protein vaccine. Twenty-four hours post immunization with SMARRT.RSV.preF, there is a dose-dependent increase in the systemic levels of inflammatory and chemotactic cytokines associated with the type I interferon response in NHPs, which is not observed with the protein vaccine. We identify a cluster of analytes including IL-15, TNFα, CCL4, and CXCL10, whose levels are significantly correlated with each other after SMARRT.RSV.preF immunization. These findings suggest saRNA vaccines have the potential to be developed as a prophylactic RSV vaccine based on innate, cellular, and humoral immune profiles they elicit.
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- 2024
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12. Researching Education for Environmental Sustainability through Intergenerational Dialogue
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Elizabeth Rushton, Lynda Dunlop, Lucy Atkinson, Joshua Stubbs, Maria Turkenburg-van Diepen, and Lucy Wood
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This study uses intergenerational dialogue as an approach to researching Education for Environmental Sustainability (EfES) with UK youth (aged 16-18 years), teachers and teacher educators. Through analysis of qualitative data from 210 participants shared through 18 h of participatory online workshops, we identify the framings introduced into discussions on EfES. We find a range of conceptual framings, with youth tending to centre on levels of accountability and critique of economic prioritisation. The case study demonstrates how intergenerational perspectives can be brought into conversation during the research process and identifies an appetite for intergenerational dialogue in EfES. We argue that intergenerational dialogue opens up our collective selves (adult and youth) to the thinking of others so that we can transform obstructions and enact education for environmental sustainability. Future work should consider the place for dialogue between key actors across generations in education decision-making processes.
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- 2024
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13. Effects of the COVID-19 School Lockdowns on Language and Math Performance of Students in Elementary Schools: Implications for Educational Practice and Reducing Inequality
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Ron Oostdam, Mieke van Diepen, Bonne Zijlstra, and Ruben Fukkink
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The current study investigates the effects of the school lockdowns during school years 2019-2020 and 2020-2021 on the achievement scores of primary school students during the COVID-19 pandemic. We analyzed scores for spelling, reading fluency (i.e., decoding speed), reading comprehension, and mathematics from standardized student tracking systems for 5125 students from 26 primary schools in the urban region of The Hague, the Netherlands. Results showed that students in grades 1 through 3 had significant learning delays after the first lockdown. However, results after the second lockdown showed that most students were able to catch up, compared to students from corresponding grades of cohorts before COVID-19. The magnitude of these positive effects was mostly close to the negative effect of the first lockdown. Apparently, during the second lockdown, schools seemed better prepared and able to deliver more effective home schooling and online instruction. The hypothesis that students' learning from a low SES home environment will suffer most from the school lockdowns could only partly be confirmed. SES effects at the individual level tended to be mitigated by negative effects of SES at the school level, making SES-related differences between schools less profound. The findings of this study offer a broader perspective to evaluate the effects of long-term school closures. Implications for educational practice and issues of inequality between students are discussed.
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- 2024
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14. Exciton transport in a germanium quantum dot ladder
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Hsiao, T. -K., Fariña, P. Cova, Oosterhout, S. D., Jirovec, D., Zhang, X., van Diepen, C. J., Lawrie, W. I. L., Wang, C. -A., Sammak, A., Scappucci, G., Veldhorst, M., Demler, E., and Vandersypen, L. M. K.
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Condensed Matter - Mesoscale and Nanoscale Physics - Abstract
Quantum systems with engineered Hamiltonians can be used as simulators of many-body physics problems to provide insights beyond the capabilities of classical computers. Semiconductor gate-defined quantum dot arrays have emerged as a versatile platform for quantum simulation of generalized Fermi-Hubbard physics, one of the richest playgrounds in condensed matter physics. In this work, we employ a germanium 4$\times$2 quantum dot array and show that the naturally occurring long-range Coulomb interaction can lead to exciton formation and transport. We tune the quantum dot ladder into two capacitively-coupled channels and exploit Coulomb drag to probe the binding of electrons and holes. Specifically, we shuttle an electron through one leg of the ladder and observe that a hole is dragged along in the second leg under the right conditions. This corresponds to a transition from single-electron transport in one leg to exciton transport along the ladder. Our work paves the way for the study of excitonic states of matter in quantum dot arrays., Comment: 15 pages and 13 figures
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- 2023
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15. Prognostic significance of haemodynamic parameters in patients with cardiogenic shock.
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Berg, David, Kaur, Gurleen, Bohula, Erin, Baird-Zars, Vivian, Alviar, Carlos, Barnett, Christopher, Barsness, Gregory, Burke, James, Chaudhry, Sunit-Preet, Chonde, Meshe, Cooper, Howard, Daniels, Lori, Dodson, Mark, Gerber, Daniel, Ghafghazi, Shahab, Gidwani, Umesh, Goldfarb, Michael, Guo, Jianping, Hillerson, Dustin, Kenigsberg, Benjamin, Kochar, Ajar, Kontos, Michael, Kwon, Younghoon, Lopes, Mathew, Loriaux, Daniel, Miller, P, Papolos, Alexander, Patel, Siddharth, Pisani, Barbara, Potter, Brian, Prasad, Rajnish, Rowsell, Robert, Shah, Kevin, Sinha, Shashank, Smith, Timothy, Solomon, Michael, Teuteberg, Jeffrey, Thompson, Andrea, Zakaria, Sammy, Katz, Jason, van Diepen, Sean, Morrow, David, and OBrien, Connor
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Cardiogenic shock ,Haemodynamics ,Outcomes ,Pulmonary artery catheter ,Humans ,Shock ,Cardiogenic ,Prognosis ,Hemodynamics ,Vascular Resistance ,Lactates - Abstract
AIMS: Invasive haemodynamic assessment with a pulmonary artery catheter is often used to guide the management of patients with cardiogenic shock (CS) and may provide important prognostic information. We aimed to assess prognostic associations and relationships to end-organ dysfunction of presenting haemodynamic parameters in CS. METHODS AND RESULTS: The Critical Care Cardiology Trials Network is an investigator-initiated multicenter registry of cardiac intensive care units (CICUs) in North America coordinated by the TIMI Study Group. Patients with CS (2018-2022) who underwent invasive haemodynamic assessment within 24 h of CICU admission were included. Associations of haemodynamic parameters with in-hospital mortality were assessed using logistic regression, and associations with presenting serum lactate were assessed using least squares means regression. Sensitivity analyses were performed excluding patients on temporary mechanical circulatory support and adjusted for vasoactive-inotropic score. Among the 3603 admissions with CS, 1473 had haemodynamic data collected within 24 h of CICU admission. The median cardiac index was 1.9 (25th-75th percentile, 1.6-2.4) L/min/m2 and mean arterial pressure (MAP) was 74 (66-86) mmHg. Parameters associated with mortality included low MAP, low systolic blood pressure, low systemic vascular resistance, elevated right atrial pressure (RAP), elevated RAP/pulmonary capillary wedge pressure ratio, and low pulmonary artery pulsatility index. These associations were generally consistent when controlling for the intensity of background pharmacologic and mechanical haemodynamic support. These parameters were also associated with higher presenting serum lactate. CONCLUSION: In a contemporary CS population, presenting haemodynamic parameters reflecting decreased systemic arterial tone and right ventricular dysfunction are associated with adverse outcomes and systemic hypoperfusion.
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- 2023
16. A self-amplifying RNA RSV prefusion-F vaccine elicits potent immunity in pre-exposed and naïve non-human primates
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Vijayan, Aneesh, Vogels, Ronald, Groppo, Rachel, Jin, Yi, Khan, Selina, Van Kampen, Mirjam, Jorritsma, Sytze, Boedhoe, Satish, Baert, Miranda, van Diepen, Harry, Kuipers, Harmjan, Serroyen, Jan, del Valle, Jorge Reyes-, Broman, Ann, Nguyen, Lannie, Ray, Sayoni, Jarai, Bader, Arora, Jayant, Lifton, Michelle, Mildenberg, Benjamin, Morton, Georgeanna, Santra, Sampa, Grossman, Tamar R., Schuitemaker, Hanneke, Custers, Jerome, and Zahn, Roland
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- 2024
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17. Person-centred care and the work-related health and job satisfaction of health and social care professionals: protocol for a prospective longitudinal cohort study combined with qualitative studies (the PCC@Work project)
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van Diepen, Cornelia, Lood, Qarin, Gustavsson, Kristoffer, Axelsson, Malin, Bertilsson, Monica, Hensing, Gunnel, and Fors, Andreas
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- 2024
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18. Effects of the COVID-19 school lockdowns on language and math performance of students in elementary schools: implications for educational practice and reducing inequality
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Oostdam, Ron, van Diepen, Mieke, Zijlstra, Bonne, and Fukkink, Ruben
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- 2024
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19. The Impact of an Accelerated Diagnostic Protocol Using Conventional Troponin I for Patients With Cardiac Chest Pain in the Emergency Department
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Jesse Hill, MD, MSc, Esther H. Yang, BSc, MSc, Dennis Lefebvre, MD, PhD, Shandra Doran, MD, PhD, Sean van Diepen, MD, FRCPC, Joshua E. Raizman, PhD, Albert K.Y. Tsui, PhD, and Brian H. Rowe, MD, MSc
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background: This study strove to assess the impact of the implementation of an accelerated diagnostic protocol (ADP), using shortened serial-testing intervals and a conventional troponin I (c-TnI) test, on emergency department (ED) length of stay (LOS). Methods: This retrospective cohort study included adults (aged ≥ 18 years) presenting to a Canadian ED with a primary complaint of cardiac chest pain between January 14, 2017 and January 15, 2019. For non-high-risk patients, the troponin delta timing decreased from 6 hours to 3 hours, and a different conventional troponin I level cut-point was implemented on January 15, 2018. The primary outcome was ED LOS. Secondary outcomes included disposition status, consultation proportions, and major adverse cardiac events within 30 days. Results: A total of 3133 patient interactions were included. Although the overall decrease in median ED LOS was not significant (P = 0.074), a significant reduction occurred in ED LOS (-33 minutes; 95% confidence interval: -53.6 to -12.4 minutes) among patients who were discharged in the post-ADP group. Consultations were unchanged between groups (36.1% before vs 33.8% after; P = 0.17). The major adverse cardiac events outcomes were unchanged across cohorts (15.9% vs 15.3%; P = 0.62). Conclusions: The implementation of an ADP, with a conventional troponin I test, for cardiac chest pain in a Canadian ED was not associated with a significant reduction of LOS for all patients; however, a significant reduction occurred for patients who were discharged, and the strategy appears safe. Résumé: Contexte: Cette étude visait à évaluer les répercussions de la mise en œuvre d’un protocole de diagnostic accéléré avec intervalles plus courts entre les épreuves séquentielles et dosage classique de la troponine I sur la durée du séjour à l’urgence. Méthodologie: Cette étude de cohortes rétrospective a été menée chez des adultes (âgés de 18 ans ou plus) qui se sont présentés à l’urgence d’un hôpital canadien principalement pour une douleur thoracique cardiaque entre le 14 janvier 2017 et le 15 janvier 2019. Chez les patients qui n’étaient pas exposés à un risque élevé, l’intervalle de dosage de la troponine (delta) est passé de 6 heures à 3 heures, et une nouvelle valeur seuil a été utilisée pour le dosage classique de la troponine I à compter du 15 janvier 2018. Le critère d’évaluation principal était la durée du séjour à l’urgence. Les critères d’évaluation secondaires comprenaient le statut au moment de la sortie, les proportions de consultation et les événements cardiovasculaires indésirables majeurs dans les 30 jours. Résultats: Au total, 3 133 interactions avec des patients ont été incluses. Bien que la diminution globale de la durée médiane du séjour à l’urgence n’ait pas été significative (p = 0,074), une réduction significative du séjour à l’urgence (-33 minutes; intervalle de confiance à 95 % : -53,6 à -12,4 minutes) a été observée chez les patients ayant reçu leur congé appartenant au groupe dans lequel le protocole de diagnostic accéléré a été mis en œuvre. Les consultations étaient inchangées entre les groupes (36,1 % avant vs 33,8 % après; p = 0,17). Les résultats relatifs aux événements cardiovasculaires indésirables majeurs sont demeurés inchangés dans les cohortes (15,9 % vs 15,3 %; p = 0,62). Conclusions: La mise en œuvre d’un protocole de diagnostic accéléré, avec un dosage classique de la troponine I, en cas de douleur thoracique d’origine cardiaque, à l’urgence d’un établissement canadien ne s’est pas traduite par une réduction significative du séjour à l’urgence chez tous les patients. Une réduction significative a néanmoins été observée chez les patients qui ont reçu leur congé, et la stratégie s’est avérée sûre.
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- 2024
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20. Pulmonary Artery Catheter Use and Mortality in the Cardiac Intensive Care Unit.
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Kadosh, Bernard, Berg, David, Bohula, Erin, Park, Jeong-Gun, Baird-Zars, Vivian, Alviar, Carlos, Alzate, James, Barnett, Christopher, Barsness, Gregory, Burke, James, Chaudhry, Sunit-Preet, Daniels, Lori, DeFilippis, Andrew, Delicce, Anthony, Fordyce, Christopher, Ghafghazi, Shahab, Gidwani, Umesh, Goldfarb, Michael, Katz, Jason, Keeley, Ellen, Kenigsberg, Benjamin, Kontos, Michael, Lawler, Patrick, Leibner, Evan, Menon, Venu, Metkus, Thomas, Miller, P, OBrien, Connor, Papolos, Alexander, Prasad, Rajnish, Shah, Kevin, Sinha, Shashank, Snell, R, So, Derek, Solomon, Michael, Ternus, Bradley, Teuteberg, Jeffrey, Toole, Joseph, van Diepen, Sean, Morrow, David, and Roswell, Robert
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cardiac intensive care ,pulmonary artery catheter ,shock ,Humans ,Pulmonary Artery ,Heart Failure ,Intensive Care Units ,Hospitalization ,Hospital Mortality ,Catheters - Abstract
BACKGROUND: The appropriate use of pulmonary artery catheters (PACs) in critically ill cardiac patients remains debated. OBJECTIVES: The authors aimed to characterize the current use of PACs in cardiac intensive care units (CICUs) with attention to patient-level and institutional factors influencing their application and explore the association with in-hospital mortality. METHODS: The Critical Care Cardiology Trials Network is a multicenter network of CICUs in North America. Between 2017 and 2021, participating centers contributed annual 2-month snapshots of consecutive CICU admissions. Admission diagnoses, clinical and demographic data, use of PACs, and in-hospital mortality were captured. RESULTS: Among 13,618 admissions at 34 sites, 3,827 were diagnosed with shock, with 2,583 of cardiogenic etiology. The use of mechanical circulatory support and heart failure were the patient-level factors most strongly associated with a greater likelihood of the use of a PAC (OR: 5.99 [95% CI: 5.15-6.98]; P < 0.001 and OR: 3.33 [95% CI: 2.91-3.81]; P
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- 2023
21. Detecting two Schistosoma circulating antigens – CCA and CAA – in urine and serum to improve diagnosis of human schistosomiasis
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Pytsje T. Hoekstra, Claudia J. de Dood, Theresia Abdoel, Stan Hilt, Angela van Diepen, Katja Polman, Peter Kremsner, Lisette van Lieshout, Andrea Kreidenweiss, Ayola Akim Adegnika, Daniela Fusco, Tahinamandranto Rasomoelina, Mala Rakoto Andrianarivelo, Raphaël Rakotozandrindrainy, Rivo Andry Rakotoarivelo, Elisa Sicuri, Govert J. van Dam, and Paul L. A. M. Corstjens
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schistosomiasis ,diagnostics ,circulating cathodic antigen (CCA) ,circulating anodic antigen (CAA) ,duplex test ,Infectious and parasitic diseases ,RC109-216 - Abstract
BackgroundSchistosomiasis is caused by infection with parasitic Schistosoma worms and affects more than 250 million people globally. The detection of schistosome derived circulating cathodic and anodic antigens (CCA and CAA) has proven highly valuable for detecting active Schistosoma infections, causing both intestinal and urinary schistosomiasis.AimThe combined detection of CCA and CAA was explored to improve accuracy in detecting Schistosoma infections.MethodsParallel detection of CCA and CAA was performed on two banked sample sets with matching serum and urine samples from Schistosoma mansoni (Sm) and S. haematobium (Sh) infected individuals using the non-concentration based lateral flow (LF) test comprising the sensitive luminescent up-converting reporter particle (UCP) technology.ResultsParallel detection of CCA and CAA increased the positivity rate for detecting both Sm and Sh infections compared to the detection of either antigen separately, demonstrating the added value of detecting both antigens in a single sample to confirm diagnosis, independent from the Schistosoma species. Significantly higher CCA concentrations in urine were observed in Sm infected individuals compared to Sh infected individuals, while serum CCA-concentrations were similar between species. CAA concentrations were higher in serum compared to those in urine, irrespective of species. When exploring the relationship of CCA and CAA in urine, the CCA/CAA ratio in Sm infected individuals was significantly higher than in Sh infected individuals, while no differences were observed in serum.Discussion and conclusionParallel detection of CCA and CAA via the UCP-LF platform showed added diagnostic value through an increased positivity rate for the detection of Sm and Sh infections, compared to only detecting either of the antigens. The combined and quantitative detection of CCA and CAA is indicative for identifying the infecting species, but needs further exploration.
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- 2024
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22. The role of emergency department crowding on the implementation of efficiency strategies to improve care for adult patients presenting with chest pain.
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Brian Rowe, Esther Yang, Shandra Doran, Michelle Graham, Sean van Diepen, Josh Raizman, and Albert Tsui
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Demography. Population. Vital events ,HB848-3697 - Abstract
Introduction This study evaluated the operational and clinical outcomes for patients presenting to an emergency department (ED) with chest pain using a 2-hour high-sensitivity troponin T (hs-TnT) protocol compared to an existing 3-hour hs-TnI protocol. Methods This retrospective cohort study used eight population-based linked health administrative datasets for adult patients presenting to a Canadian urban ED with chest pain over a two-year period. The primary outcome was ED length of stay (LOS). Secondary outcomes included health outcomes within 30 days. Results Overall, 5426 patients were included; 2879 and 2547 in the hs-TnI group and hs-TnT groups, respectively. The cohorts were similar: the median age was 58 years, 55% male, and comorbidities matched. Delays in physician initial assessment (PIA; +54 min; 95% CI: 42.2-65.8) and patients leaving without being seen increased (7% vs 12.5%; P < 0.0001) due to worsening overcrowding. The median ED LOS increased from 448 to 481 minutes after hs-TnT implementation (median difference = 33.0; 95% CI: 19.9 to 46.1), although time to second tests decreased by 54 minutes. At 30 days, there were no differences in readmission or death before and after the intervention. Conclusion Implementation of a 2-hour hs-TnT protocol resulted in mixed outcomes: increased PIA and ED LOS, yet faster time to second test. The journey through the ED for patients with chest pain is complex and affected by issues beyond the assay type and the timing of repeat Tn measurements. ED overcrowding needs to be addressed for efficiency to be realized in this setting.
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- 2024
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23. First Wide-Area Dutch Peatland Subsidence Estimates Based on InSAR.
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Philip Conroy, Yustisi A. Lumban-Gaol, Simon A. N. van Diepen, Freek J. van Leijen, and Ramon F. Hanssen
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- 2024
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24. Model-Based Approaches for Breath-to-breath Estimation of Patient Effort during Mechanical Ventilation.
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Anouk van Diepen, Tom H. G. F. Bakkes, Ashley de Bie Dekker, R. Arthur Bouwman, Pierre Woerlee, Simona Turco, and Massimo Mischi
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- 2024
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25. Presentation and Outcomes of Patients With Preoperative Critical Illness Undergoing Cardiac Surgery.
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Metkus, Thomas, Alviar, Carlos, Baird-Zars, Vivian, Barsness, Gregory, Berg, David, Bohula, Erin, Burke, James, Fordyce, Christopher, Guo, Jianping, Katz, Jason, Keeley, Ellen, Menon, Venu, Miller, P, Sinha, Shashank, So, Derek, Ternus, Bradley, Vadhar, Sagar, van Diepen, Sean, Morrow, David, and Obrien, Connor
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CABG ,ICU ,cardiac intensive care unit ,cardiac surgery - Abstract
BACKGROUND: Little is known about the prevalence and post-surgical outcomes associated with cardiac intensive care unit (CICU) therapeutics among CICU patients referred for cardiac surgery. OBJECTIVES: The purpose of this study was to investigate the clinical characteristics and outcomes of CICU patients referred for cardiac surgery from the intensive care unit. METHODS: We analyzed characteristics and outcomes of CICU admissions referred from the CICU for cardiac surgery during 2017 to 2020 across 29 centers. The primary outcome was in-hospital mortality. RESULTS: Among 10,321 CICU admissions, 887 (8.6%) underwent cardiac surgery, including 406 (46%) coronary artery bypass graftings, 201 (23%) transplants or ventricular assist devices, 171 (19%) valve surgeries, and 109 (12%) other procedures. Common indications for CICU admission included shock (33.5%) and respiratory insufficiency (24.9%). Preoperative CICU therapies included vasoactive therapy in 52.2%, mechanical circulatory support in 35.9%, renal replacement in 8.2%, mechanical ventilation in 35.7%, and 17.5% with high-flow nasal cannula or noninvasive positive pressure ventilation. In-hospital mortality was 11.7% among all CICU admissions and 9.1% among patients treated with cardiac surgery. After multivariable adjustment, pre-op mechanical circulatory support and renal replacement therapy were associated with mortality, while respiratory support and vasoactive therapy were not. CONCLUSIONS: Nearly 1 in 12 contemporary CICU patients receive cardiac surgery. Despite high preoperative disease severity, CICU admissions undergoing cardiac surgery had a comparable mortality rate to CICU patients overall; highlighting the ability of clinicians to select higher acuity patients with a reasonable perioperative risk.
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- 2023
26. Collective super- and subradiant dynamics between distant optical quantum emitters
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Tiranov, Alexey, Angelopoulou, Vasiliki, van Diepen, Cornelis Jacobus, Schrinski, Björn, Sandberg, Oliver August Dall'Alba, Wang, Ying, Midolo, Leonardo, Scholz, Sven, Wieck, Andreas Dirk, Ludwig, Arne, Sørensen, Anders Søndberg, and Lodahl, Peter
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Quantum Physics ,Physics - Optics - Abstract
Photon emission is the hallmark of light-matter interaction and the foundation of photonic quantum science, enabling advanced sources for quantum communication and computing. Although single-emitter radiation can be tailored by the photonic environment, the introduction of multiple emitters extends this picture. A fundamental challenge, however, is that the radiative dipole-dipole coupling rapidly decays with spatial separation, typically within a fraction of the optical wavelength. We realize distant dipole-dipole radiative coupling with pairs of solid-state optical quantum emitters embedded in a nanophotonic waveguide. We dynamically probe the collective response and identify both super- and subradiant emission as well as means to control the dynamics by proper excitation techniques. Our work constitutes a foundational step toward multiemitter applications for scalable quantum-information processing., Comment: 6 pages 3 figures, Supplementary materials 18 pages 18 figures
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- 2022
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27. Person-centred care and the work-related health and job satisfaction of health and social care professionals: protocol for a prospective longitudinal cohort study combined with qualitative studies (the PCC@Work project)
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Cornelia van Diepen, Qarin Lood, Kristoffer Gustavsson, Malin Axelsson, Monica Bertilsson, Gunnel Hensing, and Andreas Fors
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Study protocol ,Person-centred care ,Health and social care professionals ,Cohort study ,Job satisfaction ,Stress of conscience ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background The interplay of ethical stress, heavy workloads, and job dissatisfaction poses challenges to both the recruitment and retention of health and social care professionals. Person-centred care, rooted in ethical principles, involves collaborative care, and is expected to improve care and job satisfaction. However, prior research on the impact of person-centred care practices on professionals’ work-related health and job satisfaction has yielded mixed results, and most studies emanate from residential care. Understanding how person-centred care practices influence health and social care professionals across different care settings thus requires further exploration through rigorous methodology. The overall aim of PCC@Work is to follow, describe, assess, and explore the impact of person-centred care practices in hospital wards, primary care centres and municipal care on health and social care professionals’ work-related health and job satisfaction. Methods PCC@Work is designed as a prospective, longitudinal cohort study combined with qualitative studies. A web-based questionnaire will be distributed on five occasions within two years to health and social care professionals in the three care settings. In addition, focus groups and interviews will be conducted with a selection of health and social care professionals to explore their experiences of work-related health and job satisfaction in relation to person-centred practices. Discussion PCC@Work will highlight some of the knowledge gaps on the impact of person-centred care practices regarding work-related health and job satisfaction of health and social care professionals. The uniqueness of the project lies in the multi-method design, combining a prospective longitudinal cohort study with qualitative studies, and the involvement of various professions and settings. This means we will be able to provide a comprehensive and representative understanding of person-centred care practices as a critical component for effective change in the working conditions of health and social care.
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- 2024
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28. The Etiology of Advanced Chronic Kidney Disease in Southeast Asia: A Meta-analysis
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Ni Made Hustrini, Endang Susalit, Felix Firyanto Widjaja, Anandhara Indriani Khumaedi, Olaf M. Dekkers, Merel van Diepen, and Joris I. Rotmans
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Chronic kidney disease ,Advanced-CKD ,Primary kidney disease ,Southeast Asia ,Dialysis ,Kidney transplantation ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Introduction Chronic kidney disease (CKD) etiology varies greatly between developed and developing countries. In addition, differences in underlying pathogenesis and therapeutic options affect the progression towards advanced-CKD. This meta-analysis aims to identify the etiology of advanced-CKD in Southeast Asia. Methods A systematic search in four electronic-databases and complementary search on national kidney registries and repository libraries was conducted until July 20, 2023. The risk of bias was assessed using Newcastle–Ottawa Scale for observational studies and Version-2 of Cochrane for intervention studies. A random-effects model was used to estimate pooled prevalence. The protocol is registered in the International Prospective Register of Systematic Reviews PROSPERO; Registration ID:CRD42022300786. Results We analyzed 81 studies involving 32,834 subjects. The pooled prevalence of advanced-CKD etiologies are diabetic kidney disease (DKD) 29.2% (95%CI 23.88–34.78), glomerulonephritis 20.0% (95%CI 16.84–23.38), hypertension 16.8% (95%CI 14.05–19.70), other 8.6% (95%CI 6.97–10.47), unknown 7.5% (95%CI 4.32–11.50), and polycystic kidney disease 0.7% (95%CI 0.40–1.16). We found a significant increase in DKD prevalence from 21% (9.2%, 95%CI 0.00–33.01) to 30% (95%CI 24.59–35.97) before and after the year 2000. Among upper-middle-income and high-income countries, DKD is the most prevalent (26.8%, 95%CI 21.42–32.60 and 38.9%, 95%CI 29.33–48.79, respectively), while glomerulonephritis is common in lower-middle-income countries (33.8%, 95%CI 15.62–54.81). Conclusion The leading cause of advanced-CKD in Southeast Asia is DKD, with a substantial proportion of glomerulonephritis. An efficient screening program targeting high-risk populations (diabetes mellitus and glomerulonephritis) is needed, with the aim to delay CKD progression.
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- 2024
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29. First release of Apertif imaging survey data
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Adams, Elizabeth A. K., Adebahr, B., de Blok, W. J. G., Denes, H., Hess, K. M., van der Hulst, J. M., Kutkin, A., Lucero, D. M., Morganti, R., Moss, V. A., Oosterloo, T. A., Orru, E., Schulz, R., van Amesfoort, A. S., Berger, A., Boersma, O. M., Bouwhuis, M., Brink, R. van den, van Cappellen, W. A., Connor, L., Coolen, A. H. W. M., Damstra, S., van Diepen, G. N. J., Dijkema, T. J., Ebbendorf, N., Grange, Y. G., de Goei, R., Gunst, A. W., Holties, H. A., Hut, B., Ivashina, M. V., Jozsa, G. I. G., Loose, G. M., van Leeuwen, J., Maan, Y., Mancini, M., Mika, A., Mulder, H., Norden, M. J., Offringa, A. R., Oostrum, L. C., Pastor-Marazuela, I., Pisano, D. J., Ponomareva, A. A., Romein, J. W., Ruiter, M, Schoenmakers, A. P., van der Schuur, D., Sluman, J. J., Smits, R., Stuurwold, K. J. C, Verstappen, J., Vilchez, N. P. E, Vohl, D., Wierenga, K. J., Wijnholds, S. J., Woestenburg, E. E. M., Zanting, A. W., and Ziemke, J.
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Astrophysics - Instrumentation and Methods for Astrophysics ,Astrophysics - Astrophysics of Galaxies - Abstract
(Abridged) Apertif is a phased-array feed system for WSRT, providing forty instantaneous beams over 300 MHz of bandwidth. A dedicated survey program started on 1 July 2019, with the last observations taken on 28 February 2022. We describe the release of data products from the first year of survey operations, through 30 June 2020. We focus on defining quality control metrics for the processed data products. The Apertif imaging pipeline, Apercal, automatically produces non-primary beam corrected continuum images, polarization images and cubes, and uncleaned spectral line and dirty beam cubes for each beam of an Apertif imaging observation. For this release, processed data products are considered on a beam-by-beam basis within an observation. We validate the continuum images by using metrics that identify deviations from Gaussian noise in the residual images. If the continuum image passes validation, we release all processed data products for a given beam. We apply further validation to the polarization and line data products. We release all raw observational data from the first year of survey observations, for a total of 221 observations of 160 independent target fields, covering approximately one thousand square degrees of sky. Images and cubes are released on a per beam basis, and 3374 beams are released. The median noise in the continuum images is 41.4 uJy/bm, with a slightly lower median noise of 36.9 uJy/bm in the Stokes V polarization image. The median angular resolution is 11.6"/sin(Dec). The median noise for all line cubes, with a spectral resolution of 36.6 kHz, is 1.6 mJy/bm, corresponding to a 3-sigma HI column density sensitivity of 1.8 x 10^20 atoms cm^-2 over 20 km/s (for a median angular resolution of 24" x 15"). We also provide primary beam images for each individual Apertif compound beam. The data are made accessible using a Virtual Observatory interface., Comment: Accepted for publication in A&A, updated Figure 1
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- 2022
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30. Extracorporeal Cardiopulmonary Resuscitation: Life-saving or Resource Wasting?
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Andrea M Elliott, Sean van Diepen, Steven M Hollenberg, and Samuel Bernard
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
The morbidity and mortality for patients having a cardiac arrest is substantial. Even if optimally performed, conventional cardiopulmonary resuscitation is an inadequate substitute for native cardiac output and results in a ‘low-flow’ perfusion state. Venoarterial extracorporeal membrane oxygenation during cardiac arrest, also known as extracorporeal cardiopulmonary resuscitation (eCPR), has been proposed as an alternative to restore systemic perfusion. However, conflicting results regarding its efficacy compared to routine advanced cardiac life support have left its role in clinical practice uncertain. In this article, the merits and limitations of the existing data for eCPR are reviewed in a ‘point-counterpoint’ style debate, followed by potential considerations for future trials.
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- 2024
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31. Characteristics and Outcomes of Adults With Congenital Heart Disease in the Cardiac Intensive Care Unit
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Ryan R. Keane, MD, Anthony P. Carnicelli, MD, Daniel B. Loriaux, MD, Payton Kendsersky, MD, Richard A. Krasuski, MD, Kelly M. Brown, BSN, Kelly Arps, MD, Vivian Baird-Zars, MPH, Jeffrey A. Dixson, MD, Emily Echols, Christopher B. Granger, MD, Robert W. Harrison, MD, Michael Kontos, MD, L. Kristin Newby, MD, MHS, Jeong-Gun Park, PhD, Kevin S. Shah, MD, Bradley W. Ternus, MD, Sean Van Diepen, MD, Jason N. Katz, MD, MHS, and David A. Morrow, MD, MPH
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adult congenital heart disease ,ACHD ,cardiac intensive care unit ,CICU ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 ,Medical emergencies. Critical care. Intensive care. First aid ,RC86-88.9 - Abstract
Background: Little is known regarding the characteristics, treatment patterns, and outcomes in patients with adult congenital heart disease (ACHD) admitted to cardiac intensive care units (CICUs). Objectives: The authors sought to better define the contemporary epidemiology, treatment patterns, and outcomes of ACHD admissions in the CICU. Methods: The Critical Care Cardiology Trials Network is a multicenter network of CICUs in North America. Participating centers contributed prospective data from consecutive admissions during 2-month annual snapshots from 2017 to 2022. We analyzed characteristics and outcomes of admissions with ACHD compared with those without ACHD. Multivariable logistic regression was used to assess mortality in ACHD vs non-ACHD admissions. Results: Of 23,299 CICU admissions across 42 sites, there were 441 (1.9%) ACHD admissions. Shunt lesions were most common (46.1%), followed by right-sided lesions (29.5%) and complex lesions (28.7%). ACHD admissions were younger (median age 46 vs 67 years) than non-ACHD admissions. ACHD admissions were more commonly for heart failure (21.3% vs 15.7%, P
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- 2024
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32. The Apertif Radio Transient System (ARTS): Design, Commissioning, Data Release, and Detection of the first 5 Fast Radio Bursts
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van Leeuwen, Joeri, Kooistra, Eric, Oostrum, Leon, Connor, Liam, Hargreaves, J. E., Maan, Yogesh, Pastor-Marazuela, Inés, Petroff, Emily, van der Schuur, Daniel, Sclocco, Alessio, Straal, Samayra M., Vohl, Dany, Wijnholds, Stefan J., Adams, Elizabeth A. K., Adebahr, Björn, Attema, Jisk, Bassa, Cees, Bast, Jeanette E., Bilous, Anna, de Blok, W. J. G., Boersma, Oliver M., van Cappellen, Wim A., Coolen, Arthur H. W. M., Damstra, Sieds, Dénes, Helga, van Diepen, Ger N. J., Gardenier, David W., Grange, Yan G., Gunst, André W., Hess, Kelley M., Holties, Hanno, van der Hulst, Thijs, Hut, Boudewijn, Kutkin, Alexander, Loose, G. Marcel, Lucero, Danielle M., Mika, Ágnes, Mikhailov, Klim, Morganti, Raffaella, Moss, Vanessa A., Mulder, Henk, Norden, Menno J., Oosterloo, Tom A., Orrú, Emaneula, Paragi, Zsolt, de Reijer, Jan-Pieter R., Schoenmakers, Arno P., Stuurwold, Klaas J. C., ter Veen, Sander, Wang, Yu-Yang, Zanting, Alwin W., and Ziemke, Jacob
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Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
Fast Radio Bursts must be powered by uniquely energetic emission mechanisms. This requirement has eliminated a number of possible source types, but several remain. Identifying the physical nature of Fast Radio Burst (FRB) emitters arguably requires good localisation of more detections, and broadband studies enabled by real-time alerting. We here present the Apertif Radio Transient System (ARTS), a supercomputing radio-telescope instrument that performs real-time FRB detection and localisation on the Westerbork Synthesis Radio Telescope (WSRT) interferometer. It reaches coherent-addition sensitivity over the entire field of the view of the primary dish beam. After commissioning results verified the system performed as planned, we initiated the Apertif FRB survey (ALERT). Over the first 5 weeks we observed at design sensitivity in 2019, we detected 5 new FRBs, and interferometrically localised each of these to 0.4--10 sq. arcmin. All detections are broad band and very narrow, of order 1 ms duration, and unscattered. Dispersion measures are generally high. Only through the very high time and frequency resolution of ARTS are these hard-to-find FRBs detected, producing an unbiased view of the intrinsic population properties. Most localisation regions are small enough to rule out the presence of associated persistent radio sources. Three FRBs cut through the halos of M31 and M33. We demonstrate that Apertif can localise one-off FRBs with an accuracy that maps magneto-ionic material along well-defined lines of sight. The rate of 1 every ~7 days next ensures a considerable number of new sources are detected for such study. The combination of detection rate and localisation accuracy exemplified by the 5 first ARTS FRBs thus marks a new phase in which a growing number of bursts can be used to probe our Universe., Comment: Accepted version
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- 2022
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33. Characterising the Apertif primary beam response
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Dénes, H., Hess, K. M., Adams, E. A. K., Kutkin, A., Morganti, R., van der Hulst, J. M., Oosterloo, T. A., Moss, V. A., Adebahr, B., de Blok, W. J. G., Ivashina, M. V., Coolen, A. H. W. M., Damstra, S., Hut, B., Loose, G. M., Lucero, D. M., Maan, Y., Mika, Á., Norden, M. J., Oostrum, L. C., Pisano, D. J., Smits, R., van Cappellen, W. A., Brink, R. van den, van der Schuur, D., van Diepen, G. N. J., van Leeuwen, J., Vohl, D., Wijnholds, S. J., and Ziemke, J.
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Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
Context. Phased Array Feeds (PAFs) are multi element receivers in the focal plane of a telescope that make it possible to form simultaneously multiple beams on the sky by combining the complex gains of the individual antenna elements. Recently the Westerbork Synthesis Radio Telescope (WSRT) was upgraded with PAF receivers and carried out several observing programs including two imaging surveys and a time domain survey. The Apertif imaging surveys use a configuration, where 40 partially overlapping compound beams (CBs) are simultaneously formed on the sky and arranged in an approximately rectangular shape. Aims. This manuscript aims to characterise the response of the 40 Apertif CBs to create frequency-resolved, I, XX and YY polarization empirical beam shapes. The measured CB maps can be used for image deconvolution, primary beam correction and mosaicing of Apertif imaging data. Methods. We use drift scan measurements to measure the response of each of the 40 CBs of Apertif. We derive beam maps for all individual beams in I, XX and YY polarisation in 10 or 18 frequency bins over the same bandwidth as the Apertif imaging surveys. We sample the main lobe of the beams and the side lobes up to a radius of 0.6 degrees from the beam centres. In addition, we derive beam maps for each individual WSRT dish as well. Results. We present the frequency and time dependence of the beam shapes and sizes. We compare the compound beam shapes derived with the drift scan method to beam shapes derived with an independent method using a Gaussian Process Regression comparison between the Apertif continuum images and the NRAO VLA Sky Survey (NVSS) catalogue. We find a good agreement between the beam shapes derived with the two independent methods., Comment: Accepted for publication by A&A, 14 pages, 15 figures
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- 2022
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34. Critical Care Cardiology Trials Network (CCCTN): a cohort profile.
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Metkus, Thomas, Baird-Zars, Vivian, Alfonso, Carlos, Alviar, Carlos, Barnett, Christopher, Barsness, Gregory, Berg, David, Bertic, Mia, Bohula, Erin, Burke, James, Burstein, Barry, Chaudhry, Sunit-Preet, Cooper, Howard, Daniels, Lori, Fordyce, Christopher, Ghafghazi, Shahab, Goldfarb, Michael, Katz, Jason, Keeley, Ellen, Keller, Norma, Kenigsberg, Benjamin, Kontos, Michael, Kwon, Younghoon, Lawler, Patrick, Leibner, Evan, Liu, Shuangbo, Menon, Venu, Miller, P, Newby, L, Papolos, Alexander, Pierce, Matthew, Prasad, Rajnish, Pisani, Barbara, Potter, Brian, Roswell, Robert, Sinha, Shashank, Shah, Kevin, Smith, Timothy, Snell, R, So, Derek, Solomon, Michael, Ternus, Bradley, Teuteberg, Jeffrey, van Diepen, Sean, Zakaria, Sammy, Morrow, David, and OBrien, Connor
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Cardiac ICU ,Cohort ,Critical care ,Epidemiology ,Humans ,United States ,Critical Illness ,Coronary Care Units ,Critical Care ,Registries ,Cardiology - Abstract
AIMS: The aims of the Critical Care Cardiology Trials Network (CCCTN) are to develop a registry to investigate the epidemiology of cardiac critical illness and to establish a multicentre research network to conduct randomised clinical trials (RCTs) in patients with cardiac critical illness. METHODS AND RESULTS: The CCCTN was founded in 2017 with 16 centres and has grown to a research network of over 40 academic and clinical centres in the United States and Canada. Each centre enters data for consecutive cardiac intensive care unit (CICU) admissions for at least 2 months of each calendar year. More than 20 000 unique CICU admissions are now included in the CCCTN Registry. To date, scientific observations from the CCCTN Registry include description of variations in care, the epidemiology and outcomes of all CICU patients, as well as subsets of patients with specific disease states, such as shock, heart failure, renal dysfunction, and respiratory failure. The CCCTN has also characterised utilization patterns, including use of mechanical circulatory support in response to changes in the heart transplantation allocation system, and the use and impact of multidisciplinary shock teams. Over years of multicentre collaboration, the CCCTN has established a robust research network to facilitate multicentre registry-based randomised trials in patients with cardiac critical illness. CONCLUSION: The CCCTN is a large, prospective registry dedicated to describing processes-of-care and expanding clinical knowledge in cardiac critical illness. The CCCTN will serve as an investigational platform from which to conduct randomised controlled trials in this important patient population.
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- 2022
35. Current practices in the management of temporary mechanical circulatory support: A survey of CICU directors in North America
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Balgobind, Amrita, Pierce, Matthew, Alviar, Carlos, Barnett, Christopher, Barsness, Gregory, Chaudhry, Sunit-preet, Chonde, Meshe, Cooper, Howard, Daniels, Lori, Gidwani, Umesh, Fordyce, Christopher, Goldfarb, Michael, Katz, Jason N., Kontos, Michael, Kwon, Younghoon, Liebner, Evan, Liu, Shuangbo, Miller, P. Elliott, Newby, L.K., O'Brien, Connor, Papolos, Alexander, Pisani, Barbara, Potter, Brian, Proudfoot, Alastair, Roswell, Robert O., Sinha, Shashank S., Smith, Timothy D., Thompson, Andrea D., van Diepen, Sean, Zakaria, Sammy, Morrow, David, and Villela, Miguel Alvarez
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- 2024
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36. Arterial hyperoxia and mortality in the cardiac intensive care unit
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Jentzer, Jacob C., van Diepen, Sean, Alviar, Carlos, Miller, P. Elliott, Metkus, Thomas S., Geller, Bram J., and Kashani, Kianoush B.
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- 2024
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37. Continuum of Preshock to Classic Cardiogenic Shock in the Critical Care Cardiology Trials Network Registry
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Patel, Siddharth M., Berg, David D., Bohula, Erin A., Baird-Zars, Vivian M., Park, Jeong-Gun, Barnett, Christopher F., Daniels, Lori B., Fordyce, Christopher B., Ghafghazi, Shahab, Goldfarb, Michael J., Gorder, Kari, Kwon, Younghoon, Leibner, Evan, Menon, Venu, Potter, Brian J., Prasad, Rajnish, Solomon, Michael A., Teuteberg, Jeffrey J., Thompson, Andrea D., Zakaria, Sammy, Katz, Jason N., van Diepen, Sean, and Morrow, David A.
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- 2024
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38. Surgical stabilization of rib fractures in anticoagulated patients: Proceed with caution?
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van Diepen, Max R., van Wijck, Suzanne F.M., Vittetoe, Emmalee, Sauaia, Angela, Wijffels, Mathieu M.E., and Pieracci, Fredric M.
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- 2024
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39. Long-range electron-electron interactions in quantum dot systems and applications in quantum chemistry
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Knörzer, Johannes, van Diepen, Cornelis J., Hsiao, Tzu-Kan, Giedke, Géza, Mukhopadhyay, Uditendu, Reichl, Christian, Wegscheider, Werner, Cirac, J. Ignacio, and Vandersypen, Lieven M. K.
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Quantum Physics ,Condensed Matter - Mesoscale and Nanoscale Physics - Abstract
Long-range interactions play a key role in several phenomena of quantum physics and chemistry. To study these phenomena, analog quantum simulators provide an appealing alternative to classical numerical methods. Gate-defined quantum dots have been established as a platform for quantum simulation, but for those experiments the effect of long-range interactions between the electrons did not play a crucial role. Here we present the first detailed experimental characterization of long-range electron-electron interactions in an array of gate-defined semiconductor quantum dots. We demonstrate significant interaction strength among electrons that are separated by up to four sites, and show that our theoretical prediction of the screening effects matches well the experimental results. Based on these findings, we investigate how long-range interactions in quantum-dot arrays may be utilized for analog simulations of artificial quantum matter. We numerically show that about ten quantum dots are sufficient to observe binding for a one-dimensional $H_2$-like molecule. These combined experimental and theoretical results pave the way for future quantum simulations with quantum dot arrays and benchmarks of numerical methods in quantum chemistry., Comment: 6 pages, 3 figures, supplemental material: 4 pages, 3 figures
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- 2022
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40. Effect of a High-Sensitivity Troponin I and Associated Diagnostic Protocol on Emergency Department Length of Stay: A Retrospective Cohort Study
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Jesse Hill, MD, MSc, Esther H. Yang, BSc, MSc, Dennis Lefebvre, MD, PhD, Shandra Doran, MD, PhD, Michelle Graham, MD, FRCPC, Sean van Diepen, MD, FRCPC, Joshua E. Raizman, PhD, Albert K.Y. Tsui, PhD, and Brian H. Rowe, MD, MSc
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Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background: The objective of this study was to assess the introduction of a high-sensitivity troponin I (hs-TnI) assay and its associated accelerated protocol on emergency department (ED) length of stay (LOS) for patients presenting with chest pain, compared to an accelerated diagnostic protocol using conventional troponin (TnI) testing. Methods: We conducted a retrospective cohort study of all adults with a primary presenting complaint of chest pain of cardiac origin and a Canadian Triage and Acuity Scale score of 2 or 3, between November 8, 2019 and November 9, 2021, to a tertiary-care urban Canadian ED. The primary outcome was ED LOS. Secondary outcomes included consultation proportions and major adverse cardiac events within 30 days of the index ED visit. Results: A total of 2640 patients presenting with chest pain were included, with 1333 in the TnI group and 1307 in the hs-TnI group. Median ED LOS decreased significantly, from 392 minutes for the TnI group, and 371 minutes for the hs-TnI group (median difference = 21 minutes; 95% confidence interval: 5.3, 36.7). The numbers of consultations and admissions were not statistically different between study periods. The major adverse cardiac events outcomes did not change following the implementation of the hs-TnI test (13.6% vs 13.1%; P = 0.71). Conclusions: The implementation of an accelerated chest pain protocol using an hs-TnI assay in a tertiary-care Canadian ED was associated with a modest reduction of LOS for all patients, and a substantial reduction of LOS for patients undergoing serial troponin testing. This strategy was safe, with no increase in adverse outcomes. Résumé: Contexte: Cette étude visait à évaluer l’introduction du dosage de la troponine I de haute sensibilité (hs-TnI) et le protocole accéléré qui lui est associé sur la durée des séjours aux urgences dans le cas des patients qui consultent pour une douleur thoracique, comparativement à un protocole diagnostique accéléré faisant appel à un test de troponine classique (TnI). Méthodologie: Nous avons mené une étude de cohorte rétrospective portant sur tous les adultes qui se sont présentés aux urgences d’un établissement urbain de soins tertiaires canadien entre le 8 novembre 2019 et le 9 novembre 2021 principalement pour une douleur thoracique d’origine cardiaque et dont le score était de 2 ou 3 à l’Échelle canadienne de triage et de gravité (ETG). Le principal critère d’évaluation était la durée du séjour au service des urgences. Les critères d’évaluation secondaires comprenaient la fréquence des consultations et les événements cardiaques indésirables majeurs dans les 30 jours ayant suivi la visite de référence aux urgences. Résultats: Au total, 2640 patients qui s’étaient présentés aux urgences pour une douleur thoracique ont été inclus, 1333 se trouvant dans le groupe TnI et 1307 dans le groupe hs-TnI. La durée médiane du séjour aux urgences a diminué considérablement, passant de 392 minutes dans le groupe TnI à 371 minutes dans le groupe hs-TnI (différence médiane de 21 minutes; intervalle de confiance [IC] à 95 % : 5,3-36,7). Les consultations et les admissions n’ont pas affiché de différence statistique entre les périodes de l’étude. Les événements cardiaques indésirables majeurs n’ont pas varié après l’introduction du dosage de la hs-TnI (13,6 % vs 13,1 %; p = 0,71). Conclusions: L’adoption d’un protocole accéléré pour la douleur thoracique à l’aide du dosage de la hs-TnI au service des urgences d’un établissement de soins tertiaires canadien a été associée à une légère réduction de la durée du séjour pour l’ensemble des patients et à une réduction substantielle de cette durée pour les patients soumis à des analyses de la troponine en série. De plus, cette stratégie était sûre sans hausse des événements indésirables.
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- 2023
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41. Sustaining vulnerable agroecosystems with compost: Lasting benefits to soil health and carbon storage in semiarid winter wheat (Triticum aestivum, L.)
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Rodgers, Hannah, Norton, Jay, Norton, Urszula, and van Diepen, Linda T.A.
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- 2024
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42. An Introduction to the Co-Creation of Policy Briefs with Youth and Academic Teams
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Dunlop, Lynda, Rushton, Elizabeth A. C., Atkinson, Lucy, Blake, Celena, Calvert, Saul, Cornelissen, Eef, Dècle, Clémentine C. M., DeSchrijver, Jelle, Dhassi, Kirndeep K., Edwards, Rosalind P. R., Malaj, Greta, Mirjanic, Jovana, Saunders, William E.H, Sinkovec, Yara, Stadnyk, Tetiana, Štofan, Jaroslav, Stubbs, Joshua E., Su, Chrissy, Turkenburg-van Diepen, Maria, Vellekoop, Suzan, Veneu, Fernanda, and Yuan, Xinyue
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Drawing on insights from a four-day online workshop, which explored geo-engineering and policy making with 13 youth participants, an academic and youth authorial team provide a guide to the co-creation of policy briefs. Drawing on excerpts from the policy brief at different stages of development and commentary provided by the authors during the workshops, we set out four stages including (1) Identifying the key message and audience, (2) Reading and critically engaging with examples of policy briefs during the drafting process, (3) Developing the policy brief text, and (4) Reviewing and revising the policy brief. We have developed this guidance with a co-creative, group work approach in mind and suggest that this has relevance for those working in and beyond the discipline of geography.
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- 2023
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43. Apertif, Phased Array Feeds for the Westerbork Synthesis Radio Telescope
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van Cappellen, W. A., Oosterloo, T. A., Verheijen, M. A. W., Adams, E. A. K., Adebahr, B., Braun, R., Hess, K. M., Holties, H., van der Hulst, J. M., Hut, B., Kooistra, E., van Leeuwen, J., Loose, G. M., Morganti, R., Moss, V. A., Orrú, E., Ruiter, M., Schoenmakers, A. P., Vermaas, N. J., Wijnholds, S. J., van Amesfoort, A. S., Arts, M. J., Attema, J. J., Bakker, L., Bassa, C. G., Bast, J. E., Benthem, P., Beukema, R., Blaauw, R., de Blok, W. J. G., Bouwhuis, M., Brink, R. H. van den, Connor, L., Coolen, A. H. W. M., Damstra, S., van Diepen, G. N. J., de Goei, R., Dénes, H., Drost, M., Ebbendorf, N., Frank, B. S., Gardenier, D. W., Gerbers, M., Grange, Y. G., Grit, T., Gunst, A. W., Gupta, N., Ivashina, M. V., Józsa, G. I. G., Janssen, G. H., Koster, A., Kruithof, G. H., Kuindersma, S. J., Kutkin, A., Lucero, D. M., Maan, Y., Maccagni, F. M., van der Marel, J., Mika, A., Morawietz, J., Mulder, H., Mulder, E., Norden, M. J., Offringa, A. R., Oostrum, L. C., Overeem, R. E., Paragi, Z., Pepping, H. J., Petroff, E., Pisano, D. J., Polatidis, A. G., Prasad, P., de Reijer, J. P. R., Romein, J. W., Schaap, J., Schoonderbeek, G. W., Schulz, R., van der Schuur, D., Sclocco, A., Sluman, J. J., Smits, R., Stappers, B. W., Straal, S. M., Stuurwold, K. J. C., Verstappen, J., Vohl, D., Wierenga, K. J., Woestenburg, E. E. M., Zanting, A. W., and Ziemke, J.
- Subjects
Astrophysics - Instrumentation and Methods for Astrophysics - Abstract
We describe the APERture Tile In Focus (Apertif) system, a phased array feed (PAF) upgrade of the Westerbork Synthesis Radio Telescope which has transformed this telescope into a high-sensitivity, wide field-of-view L-band imaging and transient survey instrument. Using novel PAF technology, up to 40 partially overlapping beams can be formed on the sky simultaneously, significantly increasing the survey speed of the telescope. With this upgraded instrument, an imaging survey covering an area of 2300 deg2 is being performed which will deliver both continuum and spectral line data sets, of which the first data has been publicly released. In addition, a time domain transient and pulsar survey covering 15,000 deg2 is in progress. An overview of the Apertif science drivers, hardware and software of the upgraded telescope is presented, along with its key performance characteristics., Comment: 29 pages, 42 figures, accepted for publication by A&A
- Published
- 2021
- Full Text
- View/download PDF
44. Resource Utilization and Costs Associated With Cardiogenic Shock Complicating Myocardial Infarction: A Population-Based Cohort Study
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Parlow, Simon, Fernando, Shannon M., Pugliese, Michael, Qureshi, Danial, Talarico, Robert, Sterling, Lee H., van Diepen, Sean, Herridge, Margaret S., Price, Susanna, Brodie, Daniel, Fan, Eddy, McIsaac, Daniel I., Di Santo, Pietro, Jung, Richard G., Slutsky, Arthur S., Scales, Damon C., Combes, Alain, Hibbert, Benjamin, Thiele, Holger, Tanuseputro, Peter, and Mathew, Rebecca
- Published
- 2024
- Full Text
- View/download PDF
45. Characteristics and Outcomes of Adults With Congenital Heart Disease in the Cardiac Intensive Care Unit
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Keane, Ryan R., Carnicelli, Anthony P., Loriaux, Daniel B., Kendsersky, Payton, Krasuski, Richard A., Brown, Kelly M., Arps, Kelly, Baird-Zars, Vivian, Dixson, Jeffrey A., Echols, Emily, Granger, Christopher B., Harrison, Robert W., Kontos, Michael, Newby, L. Kristin, Park, Jeong-Gun, Shah, Kevin S., Ternus, Bradley W., Van Diepen, Sean, Katz, Jason N., and Morrow, David A.
- Published
- 2024
- Full Text
- View/download PDF
46. The Impact of an Accelerated Diagnostic Protocol Using Conventional Troponin I for Patients With Cardiac Chest Pain in the Emergency Department
- Author
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Hill, Jesse, Yang, Esther H., Lefebvre, Dennis, Doran, Shandra, van Diepen, Sean, Raizman, Joshua E., Tsui, Albert K.Y., and Rowe, Brian H.
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- 2024
- Full Text
- View/download PDF
47. An adversarial learning approach to generate pressure support ventilation waveforms for asynchrony detection
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Hao, L., Bakkes, T.H.G.F., van Diepen, A., Chennakeshava, N., Bouwman, R.A., De Bie Dekker, A.J.R., Woerlee, P.H., Mojoli, F., Mischi, M., Shi, Y., and Turco, S.
- Published
- 2024
- Full Text
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48. Propofol vs etomidate for induction prior to invasive mechanical ventilation in patients with acute myocardial infarction
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Thomas, Alexander, Banna, Soumya, Shahu, Andi, Ali, Tariq, Schenck, Christopher, Patel, Bhoumesh, Notarianni, Andrew, Phommalinh, Melinda, Kochar, Ajar, Heck, Cory, van Diepen, Sean, and Miller, P. Elliott
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- 2024
- Full Text
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49. Plant-based production of a protective vaccine antigen against the bovine parasitic nematode Ostertagia ostertagi
- Author
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Zwanenburg, Laurens, Borloo, Jimmy, Decorte, Bregt, Bunte, Myrna J. M., Mokhtari, Sanaz, Serna, Sonia, Reichardt, Niels-C., Seys, Leen J. M., van Diepen, Angela, Schots, Arjen, Wilbers, Ruud H. P., Hokke, Cornelis H., Claerebout, Edwin, and Geldhof, Peter
- Published
- 2023
- Full Text
- View/download PDF
50. Ponderosa pine introduction methods following a high-severity stand-replacing fire to promote forest regeneration
- Author
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Winters, Stephanie M. and van Diepen, Linda T. A.
- Published
- 2023
- Full Text
- View/download PDF
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