Stefan Baumann
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View article: Longitudinal Effects of Lipid-Lowering Treatment on High-Risk Plaque Features and Pericoronary Adipose Tissue Attenuation Using Serial Coronary Computed Tomography
Longitudinal Effects of Lipid-Lowering Treatment on High-Risk Plaque Features and Pericoronary Adipose Tissue Attenuation Using Serial Coronary Computed Tomography Open
Aim: To evaluate the impact of different lipid-lowering treatment intensities on high-risk plaque features and pericoronary adipose tissue (PCAT) attenuation in patients undergoing serial coronary computed tomography angiography (CCTA). Me…
View article: EGNSS MATE: Towards Accurate and Reliable GNSS and Map-Supported Train Localisation
EGNSS MATE: Towards Accurate and Reliable GNSS and Map-Supported Train Localisation Open
The paper presents the EGNSS MATE project on map-supported train localisation with onboard sensors and GNSS (Global Navigation Satellite Systems) for ERTMS (European Rail Traffic Management System). Details for the overall project and its …
View article: Effects of Ca Substitution in Single-Phase Sr1-xCaxTi0.8Fe0.2O3-ẟ Oxygen Transport Membranes and in Dual-Phase Sr1-xCaxTi0.8Fe0.2O3-ẟ-Ce0.8Gd0.2O2 Membranes
Effects of Ca Substitution in Single-Phase Sr1-xCaxTi0.8Fe0.2O3-ẟ Oxygen Transport Membranes and in Dual-Phase Sr1-xCaxTi0.8Fe0.2O3-ẟ-Ce0.8Gd0.2O2 Membranes Open
Oxygen transport membranes (OTMs) have gained a lot of attention for their application in different innovative fields, but the development of new materials able to combine high oxygen permeability and good chemical stability is crucial to …
View article: Predictors of Diagnostic Inaccuracy of Detecting Coronary Artery Stenosis by Preprocedural CT Angiography in Patients Prior to Transcatheter Aortic Valve Implantation
Predictors of Diagnostic Inaccuracy of Detecting Coronary Artery Stenosis by Preprocedural CT Angiography in Patients Prior to Transcatheter Aortic Valve Implantation Open
Background: The diagnostic performance of preprocedural CT angiography in detecting coronary artery disease (CAD) in patients scheduled for transcatheter aortic valve implantation (TAVI) has been reported. However, data on predictors of di…
View article: Novel dual-phase Ce0.8Gd0.2O2−δ – Gd1-xCexFe1-yCoyO3 composite oxygen transport membrane
Novel dual-phase Ce0.8Gd0.2O2−δ – Gd1-xCexFe1-yCoyO3 composite oxygen transport membrane Open
Oxygen Transport Membranes with mixed oxygen ionic-electronic conductivity are investigated for in-situ oxygen separation in various processes such as oxy-combustion or catalytic membrane reactors enabling process intensification. Dual-pha…
View article: Performance Assessment of Galileo High Accuracy Service for PPP and Atmospheric Correction Impact in 2023
Performance Assessment of Galileo High Accuracy Service for PPP and Atmospheric Correction Impact in 2023 Open
Since early 2023, the Galileo High Accuracy Service (HAS) has been officially providing free corrections for Precise Point Positioning (PPP). The HAS is structured into two service levels. The first level (SL1), currently available worldwi…
View article: A novel mixed-conducting network in all-oxide composites: overcoming traditional percolation constraints
A novel mixed-conducting network in all-oxide composites: overcoming traditional percolation constraints Open
Redefined mixed-conducting composite networks by leveraging grain boundaries of the ionic conductor as “mixed-conductive bridges” that interconnect ionic and electronic phases, thereby enabling efficient and sustainable oxygen permeation.
View article: in situ observation of reversible phase transitions in Gd-doped ceria driven by electron beam irradiation
in situ observation of reversible phase transitions in Gd-doped ceria driven by electron beam irradiation Open
Ceria-based oxides are widely utilized in diverse energy-related applications, with attractive functionalities arising from a defective structure due to the formation of mobile oxygen vacancies ( $${V}_{O}^{\cdot \cdot }$$ ). Notw…
View article: Ni-doping influence on functional properties of SrTi0.65Fe0.35O3-δ for use as oxygen transport membranes
Ni-doping influence on functional properties of SrTi0.65Fe0.35O3-δ for use as oxygen transport membranes Open
Pure strontium titanate, SrTiO3, exhibits excellent thermodynamic stability but negligible electronic and ionic conductivity in a wide range of temperatures and oxygen partial pressures. In order to improve the conductivity, B-site doping …
View article: Type 1 Myocardial Infarction in Patients With Acute Ischemic Stroke
Type 1 Myocardial Infarction in Patients With Acute Ischemic Stroke Open
Importance Elevated values of high-sensitivity cardiac troponin (hs-cTn) are common in patients with acute ischemic stroke and are associated with poor prognosis. However, diagnostic and therapeutic implications in patients with ischemic s…
View article: Grain boundary segregation in iron doped strontium titanate: From dilute to concentrated solid solutions
Grain boundary segregation in iron doped strontium titanate: From dilute to concentrated solid solutions Open
Strontium titanate, a perovskite oxide, is a frequently studied material for a large variety of applications. When acceptor-doped (with Fe, for example), the material is useful for its mixed oxygen and electronic conductivity, with potenti…
View article: Comparison of Two Contemporary Quantitative Atherosclerotic Plaque Assessment Tools for Coronary Computed Tomography Angiography: Single-Center Analysis and Multi-Center Patient Cohort Validation
Comparison of Two Contemporary Quantitative Atherosclerotic Plaque Assessment Tools for Coronary Computed Tomography Angiography: Single-Center Analysis and Multi-Center Patient Cohort Validation Open
Background: Coronary computed tomography angiography (CCTA) provides non-invasive quantitative assessments of plaque burden and composition. The quantitative assessment of plaque components requires the use of analysis software that provid…
View article: Impact of the sintering parameters on the microstructural and transport properties of 60 wt% Ce<sub>0.8</sub>Gd<sub>0.2</sub>O<sub>2−<i>δ</i></sub>–40 wt% FeCo<sub>2</sub>O<sub>4</sub> composites
Impact of the sintering parameters on the microstructural and transport properties of 60 wt% Ce<sub>0.8</sub>Gd<sub>0.2</sub>O<sub>2−<i>δ</i></sub>–40 wt% FeCo<sub>2</sub>O<sub>4</sub> composites Open
This article presents the connection between the sintering parameters and microstructural and functional transport properties of dual-phase composite.
View article: Lanthanide element variation in rare earth doped ceria – FeCo2O4 dual phase oxygen transport membranes
Lanthanide element variation in rare earth doped ceria – FeCo2O4 dual phase oxygen transport membranes Open
The increased interest in dual-phase membrane materials for oxygen separation leads to the continuous optimization of their composition. Rare-earth doped ceria is a promising candidate as the ion-conducting phase in the membrane. Spinel-st…
View article: The Galileo High-Accuracy Service: Evaluating the Quality of the Corrections and Initial PPP Performance
The Galileo High-Accuracy Service: Evaluating the Quality of the Corrections and Initial PPP Performance Open
The Galileo High-Accuracy Service (HAS) is providing free Precise Point Positioning (PPP) corrections for Galileo and GPS satellites through the E6b signal and the internet. Currently, HAS should provide a horizontal and vertical 95% accur…
View article: Left atrial area index provides the best prediction of atrial fibrillation in ischemic stroke patients: results from the LAETITIA observational study
Left atrial area index provides the best prediction of atrial fibrillation in ischemic stroke patients: results from the LAETITIA observational study Open
Background and aims Left atrial (LA) enlargement has been repeatedly shown to be associated with the diagnosis of atrial fibrillation (AF). In clinical practice, several parameters are available to determine LA enlargement: LA diameter ind…
View article: Role of Fe/Co Ratio in Dual Phase Ce0.8Gd0.2O2−δ–Fe3−xCoxO4 Composites for Oxygen Separation
Role of Fe/Co Ratio in Dual Phase Ce0.8Gd0.2O2−δ–Fe3−xCoxO4 Composites for Oxygen Separation Open
Dual-phase membranes are increasingly attracting attention as a solution for developing stable oxygen permeation membranes. Ce0.8Gd0.2O2−δ–Fe3−xCoxO4 (CGO-F(3−x)CxO) composites are one group of promising candidates. This study aims to unde…
View article: Standing out in context: Prominence in the production and perception of public speech
Standing out in context: Prominence in the production and perception of public speech Open
This study investigates the relationship between signal-based factors and discourse context in the production and perception of prominence, extending prior work on prominence in American English by examining speech from complete TED Talks …
View article: Development of a Multichannel Membrane Reactor with a Solid Oxide Cell Design
Development of a Multichannel Membrane Reactor with a Solid Oxide Cell Design Open
In this study, we aim to adapt a solid oxide cell (SOC) to a membrane reactor for general chemical reactions to leverage the readily available multichannel design of the SOC. As a proof-of-concept, the developed reactor is tested for synga…
View article: Radiomics in Cardiac Computed Tomography
Radiomics in Cardiac Computed Tomography Open
In recent years, there has been an increasing recognition of coronary computed tomographic angiography (CCTA) and gated non-contrast cardiac CT in the workup of coronary artery disease in patients with low and intermediate pretest probabil…
View article: Filter Evolution Using Cartesian Genetic Programming for Time Series Anomaly Detection
Filter Evolution Using Cartesian Genetic Programming for Time Series Anomaly Detection Open
Industrial monitoring relies on reliable and resilient systems to cope with unforeseen and changing environmental factors. The identification of critical conditions calls for efficient feature selection and algorithm configuration for accu…