cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bahnplanung mittels impliziter Methoden für spanende und beschichtende Fertigungsverfahren
Creators: name: Gaspar, Marcel
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: Bahnplanung
subject: Level-Sets
subject: Computer-aided manufacturing
subject: 004
subject: Bahnplanung
subject: Niveau
subject: CAE

description: Das Thema der Dissertation ist die Entwicklung einer auf Level-Sets basierenden Bahnplanungsmethodik. Zu diesem Zweck werden unterschiedliche Ansätze zur impliziten Definition, Repräsentation und Manipulation von für die Planung von Werkzeugbahnen relevanten Flächen und Kurven vorgestellt. Die entwickelten Methoden dienen zur Planung von Werkzeugbahnen in zwei unterschiedlichen Anwendungsszenarien, der spanenden Fertigung dentaler Werkstücke wie Zahnkronen, Brücken oder Inlays mittels einer 5-achsigen Tischfräsmaschine, und zur thermischen Beschichtung von Oberflächen mittels einer am Roboterarm geführten Spritzpistole. Die Verwendung impliziter Methoden führt einerseits zu bedeutsamen Vorteilen gegenüber expliziten Methoden, andererseits jedoch auch zu neuen Herausforderungen, welche in der Dissertation thematisiert werden. Hervorgehoben sei hier der Ansatz zur impliziten Repräsentation von Kammlinien als Projektion des Medialachsenrandes auf eine explizite Oberfläche, sowie die damit verbundene Identifikation von für die Bahnplanung kritischen Bereichen auf der Zieloberfläche. Ebenso werden die den Werkzeugbahnen zugrunde liegenden Kurven auf Oberflächen und im Raum implizit definiert, sowie Ansätze zur Überführung explizit bzw. implizit definierter Kontaktpunktkurven auf Oberflächen in explizit bzw. implizit definierte Werkzeugpositionskurven im Raum vorgestellt. Die Überführung von Kontaktpunktkurven auf Oberflächen in Werkzeugpositionskurven im Raum wird weitergehend vertieft, indem die Bestimmung einer Positionskurve als Lösung eines Optimierungsproblems aufgefasst wird, welche zwischen einer aus prozesstechnischer, geometrischer und dynamischer Perspektive günstigen Positionierung des Werkzeugs abzuwägen vermag. Abschließend wird eine neuartige und auf ausschließlich impliziten Repräsentationen beruhende Methodik zur Simulation des Materialabtrags bei der spanenden Fertigung vorgestellt.
Anti CHSH - Refutation of the CHSH inequality (Quantum Theory: from foundations to technologies – QTFT Växjö, Sweden, June 8–11, 2015)
Creators: name: Barukčić, Ilija
Publisher: name: Zenodo
Year: 2020
Subjects: Causation
Barukcic
Barukčić

description: Quantum Theory: from foundations to technologies – QTFT Växjö, Sweden, June 8–11, 2015 Anti CHSH - Refutation of the CHSH inequality
description: Poster has been published by SCIRP: http://dx.doi.org/10.4236/jamp.2016.44079
title: Web-PaDaWaN: Eine Web-basierte Benutzeroberfläche für ein klinisches Data Warehouse
Creators: name: Dietrich, Georg
name: Fell, Friedrich
name: Fette, Georg
name: Krebs, Jonathan
name: Ertl, Maximilian
name: Kaspar, Mathias
name: Störk, Stefan
name: Puppe, Frank
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Big Data techniques for clinical registries
subject: Modelling for the digital patient
subject: Clinical informatics
subject: Hospital information systems, computerized medical record systems
subject: Medical informatics in health service research
subject: Research IT infrastructures and EHR data reuse
subject: 610 Medical sciences; Medicine

description: Ein klinisches Data Warehouse macht die Daten eines Krankenhausinformationssystem für klinische Forschung verfügbar und muss daher über eine gute Benutzungsoberfläche verfügen. Beispiele für letztere sind Medical Research Insights von SAP [ref:1], die Benutzungsoberfäche[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
Some New Directions in Teichmueller Theory
Creators: name: Greenfield, Mark
Publisher: name: My University
Year: 2021
Subjects: subject: Teichmueller space
subject: Symmetric space
subject: Isometric submersion
subject: Riemann surface
subject: Flat torus
subject: Mathematics
subject: FOS: Mathematics
subject: Science

description: In this thesis we will extend the study of Teichmueller spaces in two relatively unexplored new directions. First, beginning with the Teichmueller space of the flat 2-torus, rather than increasing the genus, we will explore higher dimensional tori. This yields Riemannian symmetric spaces with very different, yet analogous, behavior to classically studied Teichmueller spaces of hyperbolic surfaces. Second, in the setting of hyperbolic surfaces, we study a certain kind of rigidity for maps between different Teichmueller spaces. We will classify most of the possible cases of holomorphic isometric submersions between Teichmueller spaces of finite-type hyperbolic surfaces and begin exploration in the case of infinite-type.
Fuzzy cellular model for on-line traffic simulation
Creators: name: Płaczek, Bartłomiej
Publisher: name: arXiv
Year: 2011
Subjects: subject: Emerging Technologies (cs.ET)
subject: Systems and Control (eess.SY)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: This paper introduces a fuzzy cellular model of road traffic that was intended for on-line applications in traffic control. The presented model uses fuzzy sets theory to deal with uncertainty of both input data and simulation results. Vehicles are modelled individually, thus various classes of them can be taken into consideration. In the proposed approach, all parameters of vehicles are described by means of fuzzy numbers. The model was implemented in a simulation of vehicles queue discharge process. Changes of the queue length were analysed in this experiment and compared to the results of NaSch cellular automata model.
description: The original publication is available at http://www.springerlink.com
title: Aufbau einer gemeinsamen virtuellen Biomaterialbank an der Universitätsmedizin Mainz
Creators: name: Kabala, Matthias
name: Panholzer, Torsten
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Für die translationale Forschung und die personalisierte Medizin ist der Zugang zu Biomaterial wie z.B. Gewebe, Blut oder Serum und zu den zugehörigen klinischen Daten enorm wichtig [ref:1].    In der Universitätsmedizin Mainz wird Biomaterial in verschiedenen Biobanken[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
Angle-resolved cathodoluminescence spectroscopy
Creators: name: Coenen, T.
name: Vesseur, E. J. R
name: Polman, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a novel cathodoluminescence spectroscopy technique which combines a deep subwavelength excitation resolution with angle-resolved detection capabilities. The cathodoluminescence emission is collected by a paraboloid mirror (effective NA=0.96) and is projected onto a 2D CCD array. The azimuthal and polar emission pattern is directly deduced from the image. As proof of principle we use the technique to measure the angular distribution of transition radiation from a single crystalline gold surface under 30 keV electron irradiation. We find that the experiment matches very well with theory, illustrating the potential of this new technique for the characterization of photonic structures with deep subwavelength dimensions.
description: This paper has been withdrawn because of additional experiments
title: Samply.MDR – Ein Open-Source-Metadaten-Repository
Creators: name: Kadioglu, Dennis
name: Weingardt, Paul
name: Ückert, Frank
name: Wagner, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Data management in clinical trials
subject: Data mapping
subject: Health Data Management and networking
subject: Research IT infrastructures and EHR data reuse
subject: Data curation
subject: 610 Medical sciences; Medicine

description: Hintergrund: In der medizinischen Forschung ist es je nach Fragestellung erforderlich, die benötigten Daten institutionsuübergreifend zu sammeln, z.B. aufgrund von kleinen Fallzahlen im Bereich der Seltenen Erkrankungen. Üblicherweise unterscheiden sich aber die gesammelten Datensätze[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
On the equivalence between Singularity Exponents and Finite Size Lyapunov Exponents
Creators: name: Puig Moner, Lluïsa
Publisher: name: Zenodo
Year: 2023

description: GHRSST talk of 20th April 2023. On the equivalence between Singularity Exponents and Finite Size Lyapunov Exponents Exponents in remote sensed images of the ocean. Horizontal transport and mixing processes are key to properly understand changes in the global ocean. Finite Size Lyapunov Exponents characterise the rate of separation of infinitesimally close trajectories and therefore provide information of the dispersion processes and the Lagrangian Coherent Structures (i.e. transport barriers and fronts). In order to estimate the Finite Size Lyapunov Exponents (and also Finite Time Lyapunov Exponents), a sequence long enough of the velocity field is required. The Singularity Exponents are a dimensionless measure of the degree of regularity or irregularity of a function at each point of its domain. The estimation of the Singularity Exponents is related to the multifractal properties of any ocean scalar satellite image and then no velocity field is required. Numerical estimations of Singularity Exponents show evidence that different ocean scalars present the same Singularity Exponents and that they coincide with the streamlines of the fow. This in particular means that we can estimate the streamlines from the Singularity Exponents derived from Sea Surface Temperature maps. Here we explore the possibility of computing the Finite Size Lyapunov Exponents without the need of any velocity field. For this we numerically analyse one year of satellite ocean images of Absolute Dynamic Topography and Sea Surface Temperature. Numerical estimations show a linear relationship between the Singularity Exponents and the Finite Size Lyapunov Exponents which is more robust in the case of the Singularity Exponent from Sea Surface Temperature than in the case of the Absolute Dynamic Topography. In the talk, we plan to discuss the causes of these differences and the steps forward to address this equivalence from a theoretical point of view. Recordings: https://www.ghrsst.org/meetings/20-april-2023-lluisa-puig-moner-on-the-equivalence-between-singularity-exponents-and-finite-size-lyapunov-exponents/
Topological bands in two-dimensional networks of metamaterial elements
Creators: name: Yannopapas, Vassilios
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that topological frequency band structures emerge in two-dimensional electromagnetic lattices of metamaterial components without the application of an external magnetic field. The topological nature of the band structure manifests itself by the occurrence of exceptional points in the band structure or by the emergence of one-way guided modes. Based on an EM network with nearly flat frequency bands of nontrivial topology, we propose a coupled-cavity lattice made of superconducting transmission lines and cavity QED components which is described by the Janes-Cummings-Hubbard model and can serve as simulator of the fractional quantum Hall effect.
Aerodynamic Shape Optimization using a Time-Spectral Approach for Limit Cycle Oscillation Prediction
Creators: name: He, Sicheng
Publisher: name: My University
Year: 2021
Subjects: subject: Time-spectral method
subject: Multidisciplinary design optimization (MDO)
subject: Aeroelasticity
subject: Flutter
subject: Limit cycle oscillation
subject: Algorithmic differentiation (AD)
subject: Aerospace Engineering
subject: FOS: Mechanical engineering
subject: Engineering

description: In aircraft design, LCO is an important phenomenon that we need to consider. Future aircraft are likely to have more flexible wings making them more susceptible to LCO. To avoid this tendency, we can conduct an MDO to maximize the LCO onset speed by changing the aerodynamic shape of a wing. One challenge is that we need to simulate LCO efficiently using a high-fidelity CFD model. Previous harmonic-balance-based LCO prediction methods either have low linear convergence rates or require expensive Newton steps to achieve quadratic convergence. To address this, we propose a preconditioned, Jacobian-free, CNK method for the time-spectral aeroelastic equations. By solving the coupled system directly, the method reduces the computational cost of each Newton step, making quadratic convergence affordable. We demonstrate the capability of the CNK solver by verifying the results against a time-accurate solver and by comparing them to other harmonic-balance-based results reported in the literature. We observe that the proposed method is more efficient than the time-accurate method in LCO response simulations. Another challenge is that we need to compute the LCO speed derivative to a large number of design variables. We base our work on previous research in the literature, which uses a segregated adjoint formulation. We use the coupled adjoint approach, which is a monolithic way to compute the gradient. The coupled adjoint is cheaper to compute compared to the segregated adjoint. We verify the adjoint sensitivity computation with the finite difference method, where we achieve 10^{-6} accuracy for most design variables for the wing test case. We conduct an aerodynamic shape optimization of a wing, and the LCO speed increases by 118%. Finally, to extend the adjoint method to an aerostructural optimization problem, we propose two formulations based on RAD to reduce the computational cost to one single computation. To conclude, we developed computational methods to make aerodynamic shape optimization for LCO suppression practical for wing cases, and the RAD formulae for the mode shapes and natural frequencies are likely to be useful for future aerostructural optimization.
title: Automatische Patientenregistierung in einem Studiendokumentationssystem direkt aus dem KIS heraus
Creators: name: Doods, Justin
name: Storck, Michael
name: Dugas, Martin
name: Bruland, Philipp
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Data management in clinical trials
subject: Clinical informatics
subject: Medical informatics in health service research
subject: Research IT infrastructures and EHR data reuse
subject: 610 Medical sciences; Medicine

description: Einführung: In den letzten Jahren hat sowohl die Anzahl der elektronischen Patientenakten in Krankenhäusern als auch die Studiendokumentation in Studiendatenbanken zugenommen.    Dabei ist es nicht selten, dass für Patienten die sowohl zur Routinebehandlung als auch für klinische[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
Statefinder diagnosis and the interacting ghost model of dark energy
Creators: name: Malekjani, M.
name: Khodam-Mohammadi, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A new model of dark energy namely "ghost dark energy model" has recently been suggested to interpret the positive acceleration of cosmic expansion. The energy density of ghost dark energy is proportional to the hubble parameter. In this paper we perform the statefinder diagnostic tool for this model both in flat and non-flat universe. We discuss the dependency of the evolutionary trajectories in $s-r$ and $q-r$ planes on the interaction parameter between dark matter and dark energy as well as the spatial curvature parameter of the universe. Eventually, in the light of SNe+BAO+OHD+CMB observational data, we plot the evolutionary trajectories in $s-r$ and $q-r$ planes for the best fit values of the cosmological parameters and compare the interacting ghost model with other dynamical dark energy models. We show that the evolutionary trajectory of ghost dark energy in statefinder diagram is similar to holographic dark energy model. It has been shown that the statefinder location of $Λ$CDM is in good agreement with observation and therefore the dark energy models whose current statefinder values are far from the $Λ$CDM point can be ruled out.
description: 23 pages, 6 figures
Effect of sintering additives on the densification and dielectric properties of Sr0.5Ba0.5Nb2O6 ceramics synthesized by a soft-chemistry method
Creators: name: Köferstein, Roberto
name: Ebbinghaus, Stefan
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2022
Subjects: subject: Sintering aid
subject: Permittivity
subject: Strontium barium niobate
subject: Band gap
subject: Lithium niobate
subject: Relaxor
subject: sintering
subject: ceramic
subject: relaxor ferroelectric
subject: 540

description: Nano-crystalline Sr0.5Ba0.5Nb2O6 powders with addition of LiNbO3 or LiF as sintering additives were prepared by a soft-chemistry synthesis using polyethylene glycol. Calcination at 600 C results in nanocrystalline powders (dcryst. 30 nm) which were sintered between 1000 and 1300 C to ceramic bodies. By addition of 10 and 20 mol % LiNbO3, the sintering temperature was reduced by about 200 K and the activation energy of the initial stage of sintering decreases from 386 to 271 kJ mol 1. The sintering aid improves the grain growth and dense ceramic bodies were obtained after sintering at 1125 C for 1 h. A higher LiNbO3 content favors the formation of a pillarlike microstructure. XRD patterns of ceramics sintered above 1000 C show only reflections of the Sr0.5Ba0.5Nb2O6 phase indicating an incorporation of LiNbO3 in the Sr0.5Ba0.5Nb2O6 structure. Dielectric measurements reveal a diffuse phase transition and a relaxor-like behavior. The phase transition temperature (Tm) depends on the sintering conditions and is between 117 and 127 C for 10 mol% LiNbO3, which is very close to pure Sr0.5Ba0.5Nb2O6, while addition of 20 mol% shifts Tm to around 200 C and the transition becomes slightly more diffuse. The optical band gap of the samples is 3.3 eV and depends slightly on the sintering conditions. We also tried LiF as sintering aid, but this leads to the formation of considerable amounts of secondary phases in the ceramics and relative densities of only 82%.
Trace analysis of cyclophosphamide and its metabolites in urine by liquid chromatography-tandem mass spectrometry
Creators: name: Troster, Charles Micah Smolkin
Publisher: name: University of British Columbia
Year: 2010

description: Cyclophosphamide (CP) is an antineoplastic drug used to treat a wide variety of cancers and immune disorders. CP is also a highly toxic alkylating agent, classified as an IARC Group 1 carcinogen. Workers in health-care environments are vulnerable to occupational exposure to CP, primarily via inhalation and dermal absorption. CP is a prodrug; both its therapeutic effectiveness and toxicity are activated through metabolism. To date, however, no study measuring occupational exposure to CP has successfully analyzed its metabolites. The main objective of this work was to develop an analytical method for CP, as well as its metabolites 4-ketocyclophosphamide (KCP) and carboxyphosphamide (CBP), in urine samples collected from health-care workers at risk of CP exposure. A liquid chromatography-tandem mass spectrometry (LC/MS-MS) method was optimized for CP, KCP and CBP on two different instruments. Post-column infusion showed that the matrix effects resulting from synthetic urine could be separated from the analyte peaks by LC. Estimated instrument limits of quantitation for CP, KCP and CBP in neat solvent were respectively 4.2, 8.2 and 57 ng/L. These parameters were sufficient to meet a quantitation target of 50 ng/L CP in urine, but suggested a need to reduce sample volume to reach a 2.5 ng/L target for KCP and CBP. Solid-phase extraction (SPE) was explored as a means to exchange the sample matrix for clean solvent and reduce sample volume. Previously developed SPE methods for CP were not designed to include the more polar metabolites, and thus required modification. The best retention of metabolites was seen on a C¹⁸ sorbent with reduced carbon loading. Retention was improved further under acidic loading conditions, but this had to be controlled carefully since CBP can decompose more rapidly at acidic pH. All three analytes were observed to elute with methanol.
title: Versorgungsatlas se-atlas.de: Daten & Fakten nach 15 Monaten Laufzeit
Creators: name: Storf, Holger
name: Haase, Johanna
name: Hernandez, Naima
name: Schröder, Charlotte Chloé
name: Göbel, Jens
name: Tegtbauer, Niels
name: Ahmed, Anila
name: Peschke, Benjamin
name: Windhorst, Gertrud
name: Biehl, Lisa
name: Nyoungui, Elisabeth
name: Schmidtke, Jörg
name: Graessner, Holm
name: Ückert, Frank
name: Wagner, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Consumer health informatics
subject: Medical informatics in health service research
subject: 610 Medical sciences; Medicine

description: Einleitung: Für die Diagnose und Behandlung von Personen mit seltenen Erkrankungen gibt es zahlreiche, unterschiedlich stark spezialisierte Einrichtungen in Deutschland. Hierzu zählen sowohl Fachzentren, Universitätskliniken, niedergelassene Praxen, MVZ und Reha-Einrichtungen. Darüber[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
Effect of hole-shape irregularities on photonic crystal waveguides
Creators: name: Minkov, Momchil
name: Savona, Vincenzo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The effect of irregular hole shape on the spectrum and radiation losses of a photonic crystal waveguide is studied using Bloch-mode expansion. Deviations from a perfectly circular hole are characterized by a radius fluctuation amplitude and correlation angle. It is found that the parameter which determines the magnitude of the effect of disorder is the standard deviation of the hole areas. Hence, for a fixed amplitude of the radius fluctuation around the hole, those effects are strongly dependent on the correlation angle of the irregular shape. This result suggests routes to potentially improve the quality of photonic crystal structures.
description: 3 pages, 3 figures
title: Konzeption und Evaluation einer curricularen Vorlesung zum Thema „Medizinische Biometrie für Studierende der Zahnmedizin“ im klinischen Studienabschnitt
Creators: name: Baulig, Christine
name: Krummenauer, Frank
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Implementation, training and evaluation
subject: 610 Medical sciences; Medicine

description: Einleitung: Derzeit ist im Studiengang der Zahnmedizin keine Veranstaltung zur Medizinischen Biometrie / Statistik curricular verankert. Gleichzeitig strebt aber nahezu jede/r Studierende der Zahnmedizin schon im Studium eine Promotion an und benötigt hierzu rechtzeitig entsprechendes[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
Exact Energy-Time Uncertainty Relation for Arrival Time by Absorption
Creators: name: Kiukas, Jukka
name: Ruschhaupt, Andreas
name: Schmidt, Piet O.
name: Werner, Reinhard F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove an uncertainty relation for energy and arrival time, where the arrival of a particle at a detector is modeled by an absorbing term added to the Hamiltonian. In this well-known scheme the probability for the particle's arrival at the counter is identified with the loss of normalization for an initial wave packet. Under the sole assumption that the absorbing term vanishes on the initial wave function, we show that $ΔT ΔE \geq \sqrt p \hbar/2$ and $ ΔE\geq 1.37\sqrt p\hbar$, where $e$ denotes the mean arrival time, and $p$ is the probability for the particle to be eventually absorbed. Nearly minimal uncertainty can be achieved in a two-level system, and we propose a trapped ion experiment to realize this situation.
description: 8 pages, 2 figures
Photospheric Signatures of Granular-scale Flux Emergence and Cancellation at the Penumbral Boundary
Creators: name: Lim, Eun-Kyung
name: Yurchyshyn, Vasyl
name: Abramenko, Valentyna
name: Ahn, Kwangsu
name: Cao, Wenda
name: Goode, Philip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We studied flux emergence events of sub-granular scale in a solar active region. New Solar Telescope (NST) of Big Bear Solar Observatory made it possible to clearly observe the photospheric signature of flux emergence with very high spatial (0".11 at 7057Å) and temporal (15 s) resolution. From TiO observations with the pixel scale of 0".0375, we found several elongated granule-like features (GLFs) stretching from the penumbral filaments of a sunspot at a relatively high speed of over 4 km s-1. After a slender arched darkening appeared at a tip of a penumbral filament, a bright point (BP) developed and quickly moved away from the filament forming and stretching a GLF. The size of a GLF was approximately 0.5" wide and 3" long. The moving BP encountered nearby structures after several minutes of stretching, and a well-defined elongated shape of a GLF faded away. Magnetograms from SDO/HMI and NST/IRIM revealed that those GLFs are photospheric indicators of small-scale flux emergence, and their disappearance is related to magnetic cancellation. From two well-observed events, we describe detailed development of the sub-structures of GLFs, and different cancellation processes that each of the two GLFs underwent.
description: Accepted for publication in The Astrophysical Journal
The Close Binary Fraction of Dwarf M Stars
Creators: name: Clark, Benjamin M.
name: Blake, Cullen H.
name: Knapp, Gillian R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We describe a search for close spectroscopic dwarf M star binaries using data from the Sloan Digital Sky Survey (SDSS) to address the question of the rate of occurrence of multiplicity in M dwarfs. We use a template fitting technique to measure radial velocities from 145,888 individual spectra obtained for a magnitude-limited sample of 39,543 M dwarfs. Typically, the three or four spectra observed for each star are separated in time by less than four hours, but for ~17% of the stars, the individual observations span more than two days. In these cases we are sensitive to large amplitude radial velocity variations on time scales comparable to the separation between the observations. We use a control sample of objects having observations taken within a four hour period to make an empirical estimate of the underlying radial velocity error distribution and simulate our detection efficiency for a wide range of binary star systems. We find the frequency of binaries among the dwarf M stars with a<0.4 AU to be 3-4%. Comparison with other samples of binary stars demonstrates that the close binary fraction, like the total binary fraction, is an increasing function of primary mass.
description: 23 pages, 4 figures, accepted for publication in ApJ
title: Qualität von Informationsseiten über seltene Erkrankungen: Eine vorläufige Auswertung
Creators: name: Pauer, Frédéric
name: Litzkendorf, Svenja
name: Graf Von Der Schulenburg, J.-Matthias
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Health information and process management
subject: Data security and data protection
subject: Implementation, training and evaluation
subject: 610 Medical sciences; Medicine

description: Hintergrund: In der Europäischen Union leiden etwa 30 Millionen Menschen an einer der 7.000 bis 8.000 seltenen Erkrankungen, von denen allein in Deutschland vier Millionen Menschen betroffen sind. Bei seltenen Leiden sind dabei nicht nur die Therapiemöglichkeiten, sondern auch das Wissen um[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
Selectivity Mechanisms Employed by Flavin-Dependent Monooxygenases
Creators: name: Rodriguez Benitez, Attabey
Publisher: name: My University
Year: 2021
Subjects: subject: Biocatalysis
subject: Flavin-dependent monooxygenase
subject: Oxidative dearomatization
subject: Enantioselective hydroxylation
subject: Sequence similarity network
subject: Biological Chemistry
subject: Chemistry
subject: Science (General)
subject: Science

description: Nature is an incredible source of inspiration for the discovery and subsequent development of new bioactive compounds. Unfortunately, the synthesis of these molecules is often prohibitively complex, requiring the installation of multiple functional groups with intricate three-dimensional architectures critical to their biological activity. Biocatalytic reactions embody many features of ideal chemical transformations, including the potential for impeccable selectivity, high catalytic efficiency, mild reaction conditions, and the use of environmentally benign reagents. These advantages have created a demand for new biocatalysts that expand the portfolio of complexity-generating reactions available to synthetic chemists. Oxidative dearomatization is a powerful transformation in the synthesis of complex molecules, as it generates a stereocenter and simultaneously producing a compound primed for further reactions. Nature has developed a class of biocatalysts, flavin-dependent monooxygenases, which perform this reaction with an excellent site- and stereoselectivity under mild conditions. Our studies on the TropB-catalyzed hydroxylation of phenolic compounds has defined the substrate scope of these biocatalysts; however, the mechanistic underpinnings were a mystery. Through analysis of class A FAD monooxygenases and biochemical characterization of TropB we determined that the phenolate form of the substrate interacts with Tyr239 and Arg206 to control the site- and stereo-selectivity of the hydroxylation. We then we explore how this control for site- and stereo-selective is translated to a selection of FAD-dependent monooxygenases. Through a sequence-profiling approach, we identified the FDMO AfoD with complementary selectivity compared to TropB. We determined by probing similarly positioned residues through mutagenesis and biochemical characterization that selectivity can be eroded when Tyr118 hydrogen bonding is affected. These findings pave the way in identifying new biocatalysts for reaction development toward natural product synthesis.
Spin-glass-like state in GdCu: role of phase separation and magnetic frustration
Creators: name: Bhattacharyya, A.
name: Giri, S.
name: Majumdar, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report investigations on the ground state magnetic properties of intermetallic compound GdCu through dc magnetization measurements. GdCu undergoes first order martensitic type structural transition over a wide temperature window of coexisting phases. The high temperature cubic and the low temperature orthorhombic phases have different magnetic character and they show antiferromagnetic and helimagnetic orderings below 145 K and 45 K respectively. We observe clear signature of a glassy magnetic phase below the helimagnetic ordering temperature, which is marked by thermomagnetic irreversibility, aging and memory effects. The glassy magnetic phase in GdCu is found to be rather intriguing with its origin lies in the interfacial frustration due to distinct magnetic character of the coexisting phases.
description: Physical Review B 83, 134427 (2011)
How do wave packets spread? Time evolution on Ehrenfest time scales
Creators: name: Schubert, Roman
name: Vallejos, Raul O.
name: Toscano, Fabricio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We derive an extension of the standard time dependent WKB theory which can be applied to propagate coherent states and other strongly localised states for long times. It allows in particular to give a uniform description of the transformation from a localised coherent state to a delocalised Lagrangian state which takes place at the Ehrenfest time. The main new ingredient is a metaplectic operator which is used to modify the initial state in a way that standard time dependent WKB can then be applied for the propagation. We give a detailed analysis of the phase space geometry underlying this construction and use this to determine the range of validity of the new method. Several examples are used to illustrate and test the scheme and two applications are discussed: (i) For scattering of a wave packet on a barrier near the critical energy we can derive uniform approximations for the transition from reflection to transmission. (ii) A wave packet propagated along a hyperbolic trajectory becomes a Lagrangian state associated with the unstable manifold at the Ehrenfest time, this is illustrated with the kicked harmonic oscillator.
description: 30 pages, 3 figures
Universal spectral behavior of $x^2(ix)^ε$ potentials
Creators: name: Bender, Carl M.
name: Hook, Daniel W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The PT-symmetric Hamiltonian $H=p^2+x^2(ix)^ε$ ($ε$ real) exhibits a phase transition at $ε=0$. When $ε\geq0$, the eigenvalues are all real, positive, discrete, and grow as $ε$ increases. However, when $ε<0$ there are only a finite number of real eigenvalues. As $ε$ approaches -1 from above, the number of real eigenvalues decreases to one, and this eigenvalue becomes infinite at $ε=-1$. In this paper it is shown that these qualitative spectral behaviors are generic and that they are exhibited by the eigenvalues of the general class of Hamiltonians $H^{(2n)}=p^{2n}+x^2(ix)^ε$ ($ε$ real, n=1, 2, 3, ...). The complex classical behaviors of these Hamiltonians are also examined.
description: 8 pages, 7 figures
title: Implementierung eines Verfahrens für die Ermittlung von Vorschlägen für Diagnosen in einem Arztinformationssystem
Creators: name: Schmidt, Christian
name: Kesztyüs, Tibor
name: Haag, Martin
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Statistical methods for health services research
subject: Computer assisted medical decision support
subject: 610 Medical sciences; Medicine

description: Einleitung und Fragestellung: Ein Praxisverwaltungssystem hilft dem Arzt bei der Dokumentation von Patientendaten in einer Arztpraxis. Ein wichtiger Punkt der Patientendokumentation ist die Diagnose, die der Arzt nach der Untersuchung des Patienten erhebt. Aus der Diagnose ergibt sich der weitere Verlauf[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
title: Analyse der Datenqualität der papierbasierten Erhebung für ein bundesweites Register in der Kinderrheumatologie
Creators: name: Köster, Lennart
name: Geisemeyer, Nils
name: Niewerth, Martina
name: Minden, Kirsten
name: Krupka, Kai
name: Höcker, Britta
name: Tönshoff, Burkhard
name: Knaup, Petra
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Paediatric epidemiology
subject: Health information and process management
subject: 610 Medical sciences; Medicine

description: Das Deutsche Rheuma-Forschungszentrums Berlin (DRFZ) betreibt eine Kerndokumentation für ein bundesweites, pädiatrisches Rheumaregister. Dieses wird derzeit auf eine elektronische Version mit Namen KRhOKo umgestellt. Über eine Webplattform werden Arzt-, Eltern- und Jugendlichenfragebögen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
title: Spatial aspects of labour supply in the UK
Creators: name: Molho, Ian
Publisher: name: University of Kent
Year: 2023

description: This thesis sets out to examine the main sources of variation in labour supply, and the interaction with demand conditions. The spatial dimension is taken to be of intrinsic interest (in addition to its importance in disaggregating the national picture), reflecting not only transportation costs to movement, but also problems of information diffusion . Space is therefore seen as an important dimension to issues of labour market disequilibrium and segmentation, conditioning the opportunity sets of labour market participants, and affecting outcomes. The first section of the thesis examines the determination of male migration patterns, both at the individual and aggregate levels, along lines suggested by search theory. Two main sets of conclusions emerged. Firstly, important differences were found in the behaviour of migrants across search fields, corresponding roughly with housing and employment related motivations for moving. Secondly, some support was found for the notion suggested by search theory that the spatial pattern of flows of opportunities (such as employment growth or house-building rates) were likely to be important in determining migration flows. As such, it was suggested that job creation schemes induce substantial migration adjustments, moderating the impact on local unemployment. The second portion of the thesis investigates spatial variations in married female labour force participation rates. Initially, a time series analysis was performed at the regional level, which attributed much of the regional convergence in participation to convergence in unemployment and wages. A simultaneous labour market model for the London region was then constructed. This analysis suggested that whereas male labour supply adjusted to changes in local demand conditions via induced migration or commuting, women (particularly married women) appeared to be relatively constrained in this respect, placing much of the burden of adjustment on participation rates instead.
title: Vorgelagerte Validierungsansätze zur Optimierung der produktbezogenen Stammdatenqualität als Voraussetzung für die Implementierung durchgängiger, elektronischer Beschaffungsworkflows mit Bezug zu medizinischen Primärprozessen
Creators: name: Van De Sand, Lasse
name: Rathmer, Alfons
name: Scherenschlich, Frank
name: Otten, Hubert
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Intersectoral health care
subject: Health Data Management and networking
subject: Digital healthcare strategies
subject: Internet of things customized for healthcare applications
subject: Health information and process management
subject: Data curation
subject: 610 Medical sciences; Medicine

description: Einleitung und Fragestellung: Suffizientes Stammdatenmanagement ist ein praxisrelevantes Hauptproblem bei der Umsetzung elektronischer Bestellprozesse im Gesundheitswesen. Ohne valide Stammdaten scheitern elektronische Bestellprozesse über Institutionsgrenzen hinweg zwangsweise. Ausschließlich[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
title: Praktische Umsetzung von Datenschutzanforderungen beim Feldtest mobiler AGTen
Creators: name: Tute, Erik
name: Engelke, Bernward
name: Marschollek, Michael
name: Tegtbur, Uwe
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Populations in transition
subject: Lifestyle apps supporting healthy living
subject: Policy
subject: Data security and data protection
subject: 610 Medical sciences; Medicine

description: Hintergrund: Mangelnde körperliche Aktivität hat negative Effekte auf Gesundheit und Arbeitsfähigkeit der Bevölkerung ([1], S.10). Das als Beispiel betrachtete Forschungsprojekt [2] untersucht gesundheitliche Effekte sowie Wirksamkeit und Kosteneffizienz betrieblich[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: HEC 2016: Health – Exploring Complexity; Joint Conference of GMDS, DGEpi, IEA-EEF, EFMI
Top quark mass and property measurements at Tevatron
Creators: name: Lee, Hyun Su
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The top quark, discovered in 1995 at the Fermilab Tevatron collider from CDF and D0 experiments, remains by far the most interesting particle to test standard model because of its large mass and unique properties. Having data collected about 10 fb$^{-1}$ of integrated luminosity of $p\bar{p}$ collision, both experiments have been studied the top quark in all the possible directions. In this article, we present the recent measurements of the top quark properties from Tevatron including the mass, width, spin correlation, and $W$ boson helicity using $t\bar{t}$ signature.
description: Presented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 4 pages, 6 figure
Tumor Detection, Segmentation, and Classification Challenge on Automated 3D Breast Ultrasound
Creators: name: Kuanquan Wang
name: Mingwang Xu
name: Qiucheng Wang
name: Cheng, Wen
name: Wang, Wei
name: Xinjie Liang
Publisher: name: Zenodo
Year: 2022
Subjects: Breast Tumor
Automated 3D Breast Ultrasound(ABUS)
Segmentation
Classification
Object Detection
MICCAI
Challenge

description: Breast cancer is one of the most common causes of death among women worldwide. Early detection helps in reducing the number of deaths. Automated 3D Breast Ultrasound is a new approach for breast screening, which has many advantages over handheld mammography, such as safety, speed, and higher detection rate of breast cancer in dense breasts. Thus it could prevail over the world in next several years. Tumor detection, segmentation and classification are three basic tasks in medical image analysis. These tasks are very challenging on 3D ABUS volumes for large tumor size and shape variation, irregular and ambiguous tumor
 boundaries, and low signal-to-noise ratio. Furthermore, there are rare open accessible ABUS datasets with well labeled tumor, which hinder the development of breast tumor detection, segmentation and classification systems. Thus, we try to host the first Tumor Detection, Segmentation and Classification Challenge on Automated 3D Breast Ultrasound 2023 (Named TDSC-ABUS2023) to start a new research topic and make a solid benchmark for 3D ABUS image detection, segmentation and classification tasks. We have collected 400 3D volumes with refined both tumor boundaries and categories labeling from 10 experienced radiologists , 200 for the training dataset, 140 for the closed testing dataset and 60 for the opened validated dataset. Dice, HD, are adopted as evaluation metrics for segmentation, balanced accuracy F1-score and AUC are used as evaluation metrics for classification and mAP@0.75 is taken for detection. This challenge will also promote the breast cancer treatment, interactions between researchers and interdisciplinary communication.
Game-Theoretic and Set-Based Methods for Safe Autonomous Vehicles on Shared Roads
Creators: name: Li, Nan
Publisher: name: My University
Year: 2021
Subjects: subject: Autonomous Vehicles
subject: Game Theory
subject: Intelligent Transportation Systems
subject: Multi-Agent Systems
subject: Safety-Critical Systems
subject: Stochastic Control
subject: Electrical Engineering
subject: Mechanical Engineering
subject: FOS: Mechanical engineering
subject: Transportation
subject: Engineering

description: Autonomous vehicle (AV) technology promises safer, cleaner, and more efficient transportation, as well as improved mobility for the young, elderly, and disabled. One of the biggest challenges of AV technology is the development and high-confidence verification and validation (V&V) of decision and control systems for AVs to safely and effectively operate on roads shared with other road users (including human-driven vehicles). This dissertation investigates game-theoretic and set-based methods to address this challenge. Firstly, this dissertation presents two game-theoretic approaches to modeling the interactions among drivers/vehicles on shared roads. The first approach is based on the "level-k reasoning" human behavioral model and focuses on the representation of heterogeneous driving styles of real-world drivers. The second approach is based on a novel leader-follower game formulation inspired by the "right-of-way" traffic rules and focuses on the modeling of driver intents and their resulting behaviors under such traffic rules and etiquette. Both approaches lead to interpretable and scalable driver/vehicle interaction models. This dissertation then introduces an application of these models to fast and economical virtual V&V of AV control systems. Secondly, this dissertation presents a high-level control framework for AVs to safely and effectively interact with other road users. The framework is based on a constrained partially observable Markov decision process (POMDP) formulation of the AV control problem, which is then solved using a tailored model predictive control algorithm called POMDP-MPC. The major advantages of this control framework include its abilities to handle interaction uncertainties and provide an explicit probabilistic safety guarantee under such uncertainties. Finally, this dissertation introduces the Action Governor (AG), which is a novel add-on scheme to a nominal control loop for formally enforcing pointwise-in-time state and control constraints. The AG operates based on set-theoretic techniques and online optimization. Theoretical properties and computational approaches of the AG for discrete-time linear systems subject to non-convex exclusion-zone avoidance constraints are established. The use of the AG for enhancing AV safety is illustrated through relevant simulation case studies.
Jamming and pattern formation in models of segregation
Creators: name: Rogers, Tim
name: McKane, Alan J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We investigate the Schelling model of social segregation, formulated as an intrinsically non-equilibrium system, in which the agents occupy districts (or patches) rather than sites on a grid. We show that this allows the equations governing the dynamical behaviour of the model to be derived. Analysis of these equations reveals a jamming transition in the regime of low-vacancy density, and inclusion of a spatial dimension in the model leads to a pattern forming instability. Both of these phenomena exhibit unusual characteristics which may be studied through our approach.
description: 5 pages, 4 figures