cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Plasma composition measurements in an active region from Solar Orbiter/SPICE and Hinode/EIS
Creators: name: Brooks, David H.
name: Janvier, Miho
name: Baker, Deborah
name: Warren, Harry P.
name: Auchère, Frédéric
name: Carlsson, Mats
name: Fludra, Andrzej
name: Hassler, Don
name: Peter, Hardi
name: Müller, Daniel
name: Williams, David R.
name: Cuadrado, Regina Aznar
name: Barczynski, Krzysztof
name: Buchlin, Eric
name: Caldwell, Martin
name: Fredvik, Terje
name: Giunta, Alessandra
name: Grundy, Tim
name: Guest, Steve
name: Haberreiter, Margit
name: Harra, Louise
name: Leeks, Sarah
name: Parenti, Susanna
name: Pelouze, Gabriel
name: Plowman, Joseph
name: Schmutz, Werner
name: Schuehle, Udo
name: Sidher, Sunil
name: Teriaca, Luca
name: Thompson, William T.
name: Young, Peter R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A key goal of the Solar Orbiter mission is to connect elemental abundance measurements of the solar wind enveloping the spacecraft with EUV spectroscopic observations of their solar sources, but this is not an easy exercise. Observations from previous missions have revealed a highly complex picture of spatial and temporal variations of elemental abundances in the solar corona. We have used coordinated observations from Hinode and Solar Orbiter to attempt new abundance measurements with the SPICE (Spectral Imaging of the Coronal Environment) instrument, and benchmark them against standard analyses from EIS (EUV Imaging Spectrometer). We use observations of several solar features in AR 12781 taken from an Earth-facing view by EIS on 2020 November 10, and SPICE data obtained one week later on 2020 November 17; when the AR had rotated into the Solar Orbiter field-of-view. We identify a range of spectral lines that are useful for determining the transition region and low coronal temperature structure with SPICE, and demonstrate that SPICE measurements are able to differentiate between photospheric and coronal Mg/Ne abundances. The combination of SPICE and EIS is able to establish the atmospheric composition structure of a fan loop/outflow area at the active region edge. We also discuss the problem of resolving the degree of elemental fractionation with SPICE, which is more challenging without further constraints on the temperature structure, and comment on what that can tell us about the sources of the solar wind and solar energetic particles.
description: To be published in The Astrophysical Journal
title: Ausstellungen
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 1 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Distributed Energy Trading: The Multiple-Microgrid Case
Creators: name: Gregoratti, David
name: Matamoros, Javier
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: Multiagent Systems (cs.MA)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, a distributed convex optimization framework is developed for energy trading between islanded microgrids. More specifically, the problem consists of several islanded microgrids that exchange energy flows by means of an arbitrary topology. Due to scalability issues and in order to safeguard local information on cost functions, a subgradient-based cost minimization algorithm is proposed that converges to the optimal solution in a practical number of iterations and with a limited communication overhead. Furthermore, this approach allows for a very intuitive economics interpretation that explains the algorithm iterations in terms of "supply--demand model" and "market clearing". Numerical results are given in terms of convergence rate of the algorithm and attained costs for different network topologies.
description: 24 pages, 8 figures; new version answering reviewers' comments; the paper is now accepted for publication in the IEEE Transactions on Industrial Electronics; the paper is now published
An Equivariant Version of Hatcher's G/O Construction
Creators: name: Goodwillie, Thomas
name: Igusa, Kiyoshi
name: Ohrt, Christopher
Publisher: name: arXiv
Year: 2013
Subjects: subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We explicitly construct generators of the rational homotopy groups of the space of stable h-cobordisms of the classifying space of a cyclic group of order n by generalizing a construction of Hatcher. This result will be used in a separate paper by the third author to classify axiomatic higher twisted torsion invariants.
description: 22 pages, 1 figure, Revised version following referee comments, accepted for publication by the Journal of Topology
Estimating the depth of gaps opened by planets in eccentric orbit
Creators: name: Sanchez-Salcedo, F. J.
name: Chametla, R. O.
name: Chrenko, O.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Planets can carve gaps in the surface density of protoplanetary discs. The formation of these gaps can reduce the corotation torques acting on the planets. In addition, gaps can halt the accretion of solids onto the planets as dust and pebbles can be trapped at the edge of the gap. This accumulation of dust could explain the origin of the ring-like dust structures observed using high-resolution interferometry. In this work we provide an empirical scaling relation for the depth of the gap cleared by a planet on an eccentric orbit as a function of the planet-to-star mass ratio $q$, the disc aspect ratio $h$, Shakura-Sunyaev viscosity parameter $α$, and planetary eccentricity $e$. We construct the scaling relation using a heuristic approach: we calibrate a toy model based on the impulse approximation with 2D hydrodynamical simulations. The scaling reproduces the gap depth for moderate eccentricities ($e\leq 4h$) and when the surface density contrast outside and inside the gap is $\leq 10^{2}$. Our framework can be used as the basis of more sophisticated models aiming to predict the radial gap profile for eccentric planets.
description: 17 pages, 13 figures, accepted for publication in MNRAS
An update on HCV elimination efforts through screening and linkage to care in Madeira, Portugal
Creators: name: Magno Pereira, Vítor
name: Xavier, Elisa
name: Jasmins, Luís
name: Reis, Ana Paula
name: Faria, Nancy
name: Freitas, Bruno
name: Prada, Patrícia
name: Lobato, Luz
name: Canhoto, Nuno
name: Nóbrega, José Júlio
name: Camacho, Fábio
name: Ornelas, José
name: Santos Gouveia, Pedro
name: Ramos, Pedro
name: Carrodeguas, Alba
name: Medina, Diogo
Publisher: name: Zenodo
Year: 2022
Subjects: HCV
Screening
Elimination

description: Introduction SESARAM manages 47 primary care centers, 3 hospitals, and 1 emergency department (ED) that serve 254,000 residents in the Portuguese Autonomous Region of Madeira. All facilities share the same laboratory. Description SESARAM launched a multistakeholder effort of public, social, and private sector players to adopt systematic, opportunistic HCV screening in patients aged 18-70 who required blood work for any purpose. Screening was integrated across hospital wards from January 2020, in the ED from July 2020, and in primary care from December 2020 via electronic health record algorithms and oral opt-out consent. We used reflex testing for the first time in Portugal, wherein positive HCV antibody tests trigger HCV core antigen confirmation on the same specimen without physician or patient initiation. Lessons Learned We screened 34,307 patients (76% per protocol, 24% per clinical decision) in the 34 months from August 2019 to May 2022, upscaling HCV testing to an average of 1,009 monthly tests. We found 0.51% antibody prevalence and 44% viremia; 87% of cases were detected in the ED. We successfully linked 95% of patients to care, with failures related to social barriers in complying with healthcare in intravenous drug user patients. An analysis of the quarterly moving averages of antibody and RNA prevalence in the population reveals a decreasing trend over time, crossing zero between 2024 and 2026, ahead of WHO’s elimination goal for 2030. Recommendations When grounded on implementation science and information technology, multistakeholder approaches to screening the general population are feasible and effective at improving HCV diagnosis gaps and achieving elimination. Emergency departments seem to be the most effective setting to conduct large-scale population screening of HCV.
title: Veröffentlichungen des Landesdenkmalamtes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 1 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Incoherence-Optimal Matrix Completion
Creators: name: Chen, Yudong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This paper considers the matrix completion problem. We show that it is not necessary to assume joint incoherence, which is a standard but unintuitive and restrictive condition that is imposed by previous studies. This leads to a sample complexity bound that is order-wise optimal with respect to the incoherence parameter (as well as to the rank $r$ and the matrix dimension $n$ up to a log factor). As a consequence, we improve the sample complexity of recovering a semidefinite matrix from $O(nr^{2}\log^{2}n)$ to $O(nr\log^{2}n)$, and the highest allowable rank from $Θ(\sqrt{n}/\log n)$ to $Θ(n/\log^{2}n)$. The key step in proof is to obtain new bounds on the $\ell_{\infty,2}$-norm, defined as the maximum of the row and column norms of a matrix. To illustrate the applicability of our techniques, we discuss extensions to SVD projection, structured matrix completion and semi-supervised clustering, for which we provide order-wise improvements over existing results. Finally, we turn to the closely-related problem of low-rank-plus-sparse matrix decomposition. We show that the joint incoherence condition is unavoidable here for polynomial-time algorithms conditioned on the Planted Clique conjecture. This means it is intractable in general to separate a rank-$ω(\sqrt{n})$ positive semidefinite matrix and a sparse matrix. Interestingly, our results show that the standard and joint incoherence conditions are associated respectively with the information (statistical) and computational aspects of the matrix decomposition problem.
description: Fixed a minor error in Theorem 3 for matrix decomposition. To appear in the IEEE Transactions on Information Theory
title: Zur Baukunst und Denkmalpflege des 19. und beginnenden 20. Jahrhunderts. Bestandsaufnahme im Regierungsbezirk Freiburg, dargestellt am Beispiel der Stadt Konstanz
Creators: name: Vilmar, Gernot
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 2 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Less than one implies zero
Creators: name: Schwenninger, Felix
name: Zwart, Hans
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47D09, 47D06

description: In this paper we show that from the estimate $\sup_{t \geq 0}\|C(t) - \cos(at)I\| <1$ we can conclude that $C(t)$ equals $\cos(at) I$. Here $\left(C(t)\right)_{t \geq 0}$ is a strongly continuous cosine family on a Banach space.
description: Corrected the previous version (in particular, a mistake in Lemma 2.1), streamlined and added recent references (see Introduction). 6 pages
Confluence of meromorphic solutions of q-difference equations
Creators: name: Dreyfus, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 39A13, 34M40

description: In this paper, we consider a q-analogue of the Borel-Laplace summation where q>1 is a real parameter. In particular, we show that the Borel-Laplace summation of a divergent power series solution of a linear differential equation can be uniformly approximated on a convenient sector, by a meromorphic solution of a corresponding family of linear q-difference equations. We perform the computations for the basic hypergeometric series. Following J. Sauloy, we prove how a fundamental set of solutions of a linear differential equation can be uniformly approximated on a convenient domain by a fundamental set of solutions of a corresponding family of linear q-difference equations. This leads us to the approximations of Stokes matrices and monodromy matrices of the linear differential equation by matrices with entries that are invariants by the multiplication by q.
The thermonuclear X-ray bursts of 4U 1730-22
Creators: name: Bult, Peter
name: Mancuso, Giulio C.
name: Strohmayer, Tod E.
name: Albayati, Arianna C.
name: Altamirano, Diego
name: Buisson, Douglas J. K.
name: Chenevez, Jérôme
name: Guillot, Sebastien
name: Güver, Tolga
name: Iwakiri, Wataru
name: Jaisawal, Gaurava K.
name: Ng, Mason
name: Sanna, Andrea
name: Swank, Jean H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present observations of the historic transient 4U 1730-22 as observed with the Neutron Star Interior Composition Explorer (NICER). After remaining in quiescence since its 1972 discovery, this X-ray binary showed renewed outburst activity in 2021 and 2022. We observed 4U 1730-22 extensively with NICER, detecting a total of 17 thermonuclear X-ray bursts. From a spectroscopic analysis, we find that these X-ray bursts can be divided into a group of bright and weak bursts. All bright bursts showed $1\sim2$ second rise times and a photospheric radius expansion phase, while the weak bursts showed a slower $\sim5$ second rise with a tendency for concave shapes. From the photospheric radius expansion flux, we estimate the source distance at $6.9\pm0.2$ kpc. We consider various interpretations for our observations and suggest that they may be explained if accreted material is burning stably at the stellar equator, and unstable ignition occurs at a range of higher latitudes.
description: 13 pages, 6 figures, 2 tables. Accepted for publication in ApJ
Modular Simulation Framework for Magnetic Particle Imaging
Creators: name: Kampf, Thomas
name: Rückert, Martin Andreas
name: Behr, Volker Christian
name: Vogel, Partick
Publisher: name: International Journal on Magnetic Particle Imaging IJMPI
Year: 2023

description: Simulations are of high interest in all areas of scientific research, especially for finding novel approaches or optimizing existing methods. For the young field of Magnetic Particle Imaging (MPI) only few quite specific simulation frameworks exist, which cover the entire process from hardware simulation and signal generation to data reconstruction and final visualization. With the presented modular simulation framework consisting of three cooperating packages, all important steps can be provided. Each package is a tool for specific purpose, Magnetic Field Simulator for signal generation, Reconstruction Framework for data reconstruction and 3D Visualization Tool for data visualization, which can be used as framework, stand-alone or in combination with third party software packages.
description: International Journal on Magnetic Particle Imaging IJMPI, Vol 9 No 1 Suppl 1 (2023)
Planet Four: A Neural Network's Search For Polar Spring-time Fans On Mars
Creators: name: McDonnell, Mark D.
name: Jones, Eriita
name: Schwamb, Megan E.
name: Aye, K-Michael
name: Portyankina, Ganna
name: Hansen, Candice J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Dark deposits visible from orbit appear in the Martian south polar region during the springtime. These are thought to form from explosive jets of carbon dioxide gas breaking through the thawing seasonal ice cap, carrying dust and dirt which is then deposited onto the ice as dark 'blotches', or blown by the surface winds into streaks or 'fans'. We investigate machine learning (ML) methods for automatically identifying these seasonal features in High Resolution Imaging Science Experiment (HiRISE) satellite imagery. We designed deep Convolutional Neural Networks (CNNs) that were trained and tested using the catalog generated by Planet Four, an online citizen science project mapping the south polar seasonal deposits. We validated the CNNs by comparing their results with those of ISODATA (Iterative Self-Organizing Data Analysis Technique) clustering and as expected, the CNNs were significantly better at predicting the results found by Planet Four, in both the area of predicted seasonal deposits and in delineating their boundaries. We found neither the CNNs or ISODATA were suited to predicting the source point and directions of seasonal fans, which is a strength of the citizen science approach. The CNNs showed good agreement with Planet Four in cross-validation metrics and detected some seasonal deposits in the HiRISE images missed in the Planet Four catalog; the total area of seasonal deposits predicted by the CNNs was 27% larger than that of the Planet Four catalog, but this aspect varied considerably on a per-image basis.
description: Accepted to Icarus
Uniqueness and minimal obstructions for tree-depth
Creators: name: Barrus, Michael D.
name: Sinkovic, John
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C75 (05C15, 05C78, 05C83)

description: A k-ranking of a graph G is a labeling of the vertices of G with values from {1,...,k} such that any path joining two vertices with the same label contains a vertex having a higher label. The tree-depth of G is the smallest value of k for which a k-ranking of G exists. The graph G is k-critical if it has tree-depth k and every proper minor of G has smaller tree-depth. We establish partial results in support of two conjectures about the order and maximum degree of k-critical graphs. As part of these results, we define a graph G to be 1-unique if for every vertex v in G, there exists an optimal ranking of G in which v is the unique vertex with label 1. We show that several classes of k-critical graphs are 1-unique, and we conjecture that the property holds for all k-critical graphs. Generalizing a previously known construction for trees, we exhibit an inductive construction that uses 1-unique k-critical graphs to generate large classes of critical graphs having a given tree-depth.
description: 14 pages, 4 figures
title: Denkmalschutz für die Ulmer Bundesfestung. Eine Zwischenbilanz
Creators: name: Pflüger, Hellmut
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 2 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Das Verwaltungsgericht entscheidet... Urteil gegen eine Fassadenverkleidung in Überlingen
Creators: name: Krins, Hubert
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 2 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Insight COMPASS – the physics behind
Creators: name: Günther, Johanna
name: Kampf, Thomas
name: Rückert, Martin
name: Friedrich, Bernhard
name: Tietze, Rainer
name: Lyer, Stefan
name: Hennig, Thomas
name: Dölken, Lars
name: Alexiou, Christoph
name: Behr, Volker
name: Vogel, Patrick
Publisher: name: International Journal on Magnetic Particle Imaging IJMPI
Year: 2023

description: Critical Offset Magnetic PArticle SpectroScopy (COMPASS) is a new method that allows to detect slight changes in the mobility of particles in a solution very sensitively. While first applications in detecting biomarkers such as SARS CoV 2 antibodies show very promising results, the full potential of the technique and the underlying physical effects were yet only considered superficially. Here we present the first results of a detailed study of the behavior of the particle signal under variations of relevant system parameters with a focus on particle size, viscosity and temperature of the solution to win more information about the behavior of the effect and find new interesting application possibilities.
description: International Journal on Magnetic Particle Imaging IJMPI, Vol 9 No 1 Suppl 1 (2023)
title: Alte Glocken im Nordteil der Erzdiözese Freiburg
Creators: name: Rolli, Hans
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 3 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Things encrusted with language
Creators: name: Dimitrij Mlekuz Vrhovnik
Publisher: name: Zenodo
Year: 2023
Subjects: archaeology
language
chaîne opératoire
discourse
symbolic order
Jacques Lacan
André Leroi-Gourhan

description: Technical engagement with the world is structured like a language. It is a language, a system of differences between operations. Things, objects, artefacts made through a chain of operations are encrusted with that language and recognised as such within a discourse. This, on the one hand, makes the archaeology of speaking beings possible; on the other hand, it decenters humans; it shifts the agency away from the individual persons to transindividual discourse of things.
A positive basis for surface skein algebras
Creators: name: Thurston, Dylan P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 57M99 (Primary) 13F60 (Secondary)

description: We show that the twisted SL(2) skein algebra of a surface has a natural basis (the bracelets basis) that is positive, in the sense that the structure constants for multiplication are positive integers.
description: 8 pages, 5 figures; v2: Published version
title: Personalia
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 3 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Does the gamma-ray binary LS I +61°303 harbor a magnetar?
Creators: name: Suvorov, Arthur G.
name: Glampedakis, Kostas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The high-mass X-ray binary LS I +61°303 is also cataloged as a gamma-ray binary as a result of frequent outbursts at TeV photon energies. The system has released two soft-gamma flares in the past, suggesting a magnetar interpretation for the compact primary. This inference has recently gained significant traction following the discovery of transient radio pulses, detected in some orbital phases from the system, as the measured rotation and tentative spin-down rates imply a polar magnetic field strength of $B_p \gtrsim 10^{14}\,\mbox{G}$ if the star is decelerating via magnetic dipole braking. In this paper, we scrutinize magnetic field estimates for the primary in LS I +61°303 by analyzing the compatibility of available data with the system's accretion dynamics, spin evolution, age limits, gamma-ray emissions, and radio pulsar activation. We find that the neutron star's age and spin evolution are theoretically difficult to reconcile unless a strong propeller torque is in operation. This torque could be responsible for the bulk of even the maximum allowed spin-down, potentially weakening the inferred magnetic field by more than an order of magnitude.
description: 12 pages, 5 figures. Minor changes to title and abstract to match published version
title: Umweltschutz und Denkmalpflege
Creators: name: Veit, Werner
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 4 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Inconspicuous Solar Polar Coronal X-ray Jets as the Source of Conspicuous Hinode/EUV Imaging Spectrometer (EIS) Doppler Outflows
Creators: name: Sterling, Alphonse C.
name: Schwanitz, Conrad
name: Harra, Louise K.
name: Raouafi, Nour E.
name: Panesar, Navdeep K.
name: Moore, Ronald L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We examine in greater detail five events previously identified as being sources of strong transient coronal outflows in a solar polar region in Hinode/EUV Imaging Spectrometer (EIS) Doppler data. Although relatively compact or faint and inconspicuous in Hinode/Soft X-ray Telescope (XRT) soft-X-ray (SXR) images and in Solar Dynamics Observatory (SDO)/Atmospheric Imaging Assembly (AIA) EUV images, we find that all of these events are consistent with being faint coronal X-ray jets. The evidence for this is that the events result from eruption of minifilaments of projected sizes spanning 5000 -- 14,000 km and with erupting velocities spanning 19 -- 46 km/s, which are in the range of values observed in cases of confirmed X-ray polar coronal hole jets. In SXR images, and in some EUV images, all five events show base brightenings, and faint indications of a jet spire that (in four of five cases where determinable) moves away from the brightest base brightening; these properties are common to more obvious X-ray jets. For a comparatively low-latitude event, the minifilament erupts from near (<~few arcsec) a location of near-eruption-time opposite-polarity magnetic-flux-patch convergence, which again is consistent with many observed coronal jets. Thus, although too faint to be identified as jets a priori, otherwise all five events are identical to typical coronal jets. This suggests that jets may be more numerous than recognized in previous studies, and might contribute substantially to solar wind outflow, and to the population of magnetic switchbacks observed in Parker Solar Probe (PSP) data.
title: 4. Jahrgang 1975 - Register
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 1 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Wave packet analysis of Schrodinger equations in analytic function spaces
Creators: name: Cordero, Elena
name: Nicola, Fabio
name: Rodino, Luigi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We consider a class of linear Schroedinger equations in R^d, with analytic symbols. We prove a global-in-time integral representation for the corresponding propagator as a generalized Gabor multiplier with a window analytic and decaying exponentially at infinity, which is transported by the Hamiltonian flow. We then provide three applications of the above result: the exponential sparsity in phase space of the corresponding propagator with respect to Gabor wave packets, a wave packet characterization of Fourier integral operators with analytic phases and symbols, and the propagation of analytic singularities.
description: 26 pages
A refined debye model for the dynamic magnetization response of superparamagnetic nanoparticles
Creators: name: Solibida, Sebastian
name: Pantke-Stratmann, Dennis
name: Schrank, Franziska
name: Schulz, Volkmar
Publisher: name: International Journal on Magnetic Particle Imaging IJMPI
Year: 2023

description: Magnetic Particle Imaging (MPI) uses ferrofluids based on superparamagnetic iron-oxide nanoparticles (SPIONs) as a tracer, whose induced voltage in the receive coils is the measured signal. Image reconstruction is often done with the system matrix approach, which needs the signal of a test sample at each position for which the concentration should be reconstructed. In a scanner with a three dimensional reconstruction volume, this measurement becomes very time consuming. Functional parameters such as the temperature might also be reconstructed with a system matrix approach but would require additional system matrices to be measured. Simulation models for the ferrofluid’s magnetic behavior might be a solution to this problem, if they are sufficiently fast and precise. Here, we compare the prediction quality and computational cost of the commonly used Debye model with the new Refined Debye model on a viscosity measurement.
description: International Journal on Magnetic Particle Imaging IJMPI, Vol 9 No 1 Suppl 1 (2023)
title: Ortskernzerstörung in Welzheim. Die „Alte Krone" ist abrißbedroht
Creators: name: Boedeker, Thomas
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 1 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Amplitudes of Solar Gravity Modes: A Review
Creators: name: Belkacem, Kévin
name: Pinçon, Charly
name: Buldgen, Gaël
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar gravity modes are considered as the {\it Rosetta Stone} for probing and subsequently deciphering the physical properties of the solar inner-most layers. Recent claims of positive detection therefore shed some new light on the long-standing issue of estimating solar gravity mode amplitudes. In this article, our objective is to review the theoretical efforts intended to predict solar gravity mode amplitudes. Because most of these studies assumed analogous driving and damping properties to those for the observed acoustic modes, we also provide a short overview of our current knowledge for these modes in the Sun and solar-type stars (which show solar-like oscillations) before diving into the specific problem of solar gravity modes. Finally, taking recent estimates into account, we conclude and confirm that the low-frequency domain (typically between $10\,μ$Hz and $100\,μ$Hz) is certainly more suited to focus on for detecting solar gravity modes. More precisely, around $60\,μ$Hz, the theoretical estimates are slightly lower than the observational detection threshold as provided by the GOLF (Global Oscillations at Low Frequencies) instrument by about a factor of two only. This is typically within the current uncertainties associated with theoretical estimates and should motivate us for improving our knowledge on turbulence in the whole solar convective region, which is key for improving the accuracy of $g$-mode amplitude estimates. The recent detection of solar inertial modes (Gizon et al. 2021) combined with the continuous development of numerical simulations provide interesting prospects for future studies.
description: Accepted for publication in Solar Physics
title: Personanlia ; Quellennachweis für die Abbildungen
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 1 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Stability analysis of planetary systems via second-order Rényi entropy
Creators: name: Kovács, Tamás
name: Pszota, Máté
name: Kővári, Emese
name: Forgács-Dajka, Emese
name: Sándor, Zsolt
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The long-term dynamical evolution is a crucial point in recent planetary research. Although the amount of observational data is continuously growing and the precision allows us to obtain accurate planetary orbits, the canonical stability analysis still requires N-body simulations and phase space trajectory investigations. We propose a method for stability analysis of planetary motion based on the generalized Rényi entropy obtained from a scalar measurement. The radial velocity data of the central body in the gravitational three-body problem is used as the basis of a phase space reconstruction procedure. Then, Poincaré's recurrence theorem contributes to finding a natural partitioning in the reconstructed phase space to obtain the Rényi entropy. It turns out that the entropy-based stability analysis is in good agreement with other chaos detection methods, and it requires only a few tens of thousands of orbital period integration time.
description: 7 pages, 7 figures, accepted for publication in MNRAS
Ghost numbers of group algebras II
Creators: name: Christensen, J. Daniel
name: Wang, Gaohong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20C20, 18E30, 20J06, 55P99

description: We study several closely related invariants of the group algebra $kG$ of a finite group. The basic invariant is the ghost number, which measures the failure of the generating hypothesis and involves finding non-trivial composites of maps each of which induces the zero map in Tate cohomology ("ghosts"). The related invariants are the simple ghost number, which considers maps which are stably trivial when composed with any map from a suspension of a simple module, and the strong ghost number, which considers maps which are ghosts after restriction to every subgroup of $G$. We produce the first computations of the ghost number for non-$p$-groups, e.g., for the dihedral groups at all primes, as well as many new bounds. We prove that there are close relationships between the three invariants, and make computations of the new invariants for many families of groups.
description: To appear in Algebras and Representation Theory. v2 corresponds to published version, and contains improvements throughout
An Appreciative Inquiry Approach to Understanding What Attracts and Retains Early-Career Therapists to Work in Community Organizations
Creators: name: Dancza, Karina Michelle
name: Choi, Yik Ming
name: Amalia, Kaisah
name: Wong, Pei Shan
name: Hu, Jia Hao
name: Yap, Li Wen
Publisher: name: Singapore Institute of Technology
Year: 2023
Subjects: Occupational therapy
Physiotherapy
Allied health and rehabilitation science not elsewhere classified

description: PURPOSE: Community health organizations are expanding in many countries to meet the health and care needs associated with an aging population, an increase in recognition of children with developmental and mental health needs and escalating healthcare costs. Singapore is no exception. Community organizations, however, are facing challenges in recruiting and retaining early-career therapists to these positions due to competition from acute services and a declining foreign talent pool. At the same time, early-career therapists encounter challenges during the transition from student to professional. Community organizations, therefore, need to identify what makes their organization attractive to early-career therapists and what makes them stay. This study explored factors that attracted and retained early-career therapists in community organizations in Singapore from the perspectives of early-career therapists and supervisors. METHODS: Appreciative Inquiry was adopted as a strengths-based approach to guide this qualitative study process. Focus groups were conducted with three groups of early-career therapists and supervisors, to explore perspectives of what attracted them to work in a community health organization and what factors retained them in their roles. Two phases of focus groups were held three-weeks apart, giving early-career therapists and supervisors the opportunity to consolidate and expand their ideas. Focus groups were audio-recorded, transcribed and thematically analyzed. RESULTS: This study highlighted three key factors which attracted and retained early-career therapists to the Singapore community health organizations: (1) a culture that values learning and professional development; (2) structured supervision that is timely and individualized; and (3) a system that supports job satisfaction and promotes staff wellbeing. CONCLUSIONS & RECOMMENDATIONS: This study highlighted that community organizations could enhance their attraction and retention of early-career therapists through a focus on opportunities for early-career therapists’ formal and informal learning and professional development opportunities. Having a clear supervision framework and continuing development for supervisors is another key attraction for early-career therapists. Finally, time and opportunities to develop meaningful relationships with colleagues and clients enhances job satisfaction and wellbeing of early-career therapists. Making explicit the offer in these three areas could enhance applications and the retention of early-career therapists to these services.
First principles approach to the Abraham-Minkowski controversy for the momentum of light in general linear non-dispersive media
Creators: name: Ramos, Tomás
name: Rubilar, Guillermo F.
name: Obukhov, Yuri N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Physics (physics.class-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the problem of the definition of the energy-momentum tensor of light in general moving non-dispersive media with linear constitutive law. Using the basic principles of classical field theory, we show that for the correct understanding of the problem, one needs to carefully distinguish situations when the material medium is modeled either as a background on which light propagates or as a dynamical part of the total system. In the former case, we prove that the (generalized) Belinfante-Rosenfeld (BR) tensor for the electromagnetic field coincides with the Minkowski tensor. We derive a complete set of balance equations for this open system and show that the symmetries of the background medium are directly related to the conservation of the Minkowski quantities. In particular, for isotropic media, the angular momentum of light is conserved despite of the fact that the Minkowski tensor is non-symmetric. For the closed system of light interacting with matter, we model the material medium as a relativistic non-dissipative fluid and we prove that it is always possible to express the total BR tensor of the closed system either in the Abraham or in the Minkowski separation. However, in the case of dynamical media, the balance equations have a particularly convenient form in terms of the Abraham tensor. Our results generalize previous attempts and provide a first principles basis for a unified understanding of the long-standing Abraham-Minkowski controversy without ad hoc arguments.
description: published version
Chemically Peculiar Stars in the Open Cluster Stock 2
Creators: name: Casamiquela, Laia
name: Gebran, Marwan
name: Agüeros, Marcel
name: Bouy, Hervé
name: Soubiran, Caroline
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The recently re-discovered open cluster Stock 2, located roughly 375 pc away and about 400 Myr old, has the potential to be an exciting new testbed for our understanding of stellar evolution. We present results from a spectroscopic campaign to characterize stars near the cluster's main-sequence turnoff; our goal is to identify candidate chemically peculiar stars among the cluster's A stars. We obtained echelle spectra for 64 cluster members with ESPaDOnS on the 3.6-m Canada-France-Hawaii Telescope, Mauna Kea Observatory, USA, and for six stars with SOPHIE on the 1.93-m telescope at the Observatoire de Haute-Provence, France. We complemented these new observations with those of 13 high-mass cluster members from the HARPS-N archive; our overall sample is of 71 stars. We derived the fundamental parameters (Teff, log g, [M/H]) as well as vsini for our sample using the Sliced Inverse Regression (SIR) technique, and then used iSpec to derive individual abundances of 12 chemical species. With these abundance determinations, we identified nine A stars with anomalous levels of Sc, Ca, and other metallic lines. Follow-up observations of these Am candidates with a known age can transform them into benchmarks for evolutionary models that include atomic diffusion and help build a better understanding of the complex interactions between macroscopic and microscopic processes in stellar interiors.
description: Accepted for publication in AJ
title: Die Restaurierung der Nordfassade des Zwiefaitener Münsters
Creators: name: Kummer, Stefan
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Feilschen um Baudenkmäler in Sinsheim — Erhaltung gegen Abriß
Creators: name: Schubart, Peter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Vector Bundles on the Moduli Stack of Elliptic Curves
Creators: name: Meier, Lennart
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14K10, 14H52, 14H60

description: We study vector bundles on the moduli stack of elliptic curves over a local ring R. If R is a field or a discrete valuation ring of (residue) characteristic not 2 or 3, all these vector bundles are sums of line bundles. For R the 3-local integers, we construct higher rank indecomposable vector bundles and give a classification of vector bundles that are iterated extensions of line bundles. For R the 2-local integers, we show that there are even indecomposable vector bundles of arbitrary high rank.
description: 26 pages
Model-based voltage predictions for arbitrary waveform excitation in Magnetic Particle Imaging
Creators: name: Ackers, Justin
name: Mohn, Fabian
name: Hackelberg, Niklas
name: Knopp, Tobias
name: Buzug, Thorsten M.
name: Graeser, Matthias
Publisher: name: International Journal on Magnetic Particle Imaging IJMPI
Year: 2023

description: In recent works, arbitrary waveform or pulsed excitation in Magnetic Particle Imaging (MPI) was proposed to offer better resolution and sensitivity. Generating these excitation fields poses a new challenge in MPI hardware design. This work proposes a method which models the excitation chain as a linear system and predicts the required input voltage for the desired output field. The initial prediction is then iteratively improved to compensate for inaccuracies of the model. The method is demonstrated to achieve accurate field waveforms in both linear and slew rate limited regions of the amplifier.
description: International Journal on Magnetic Particle Imaging IJMPI, Vol 9 No 1 Suppl 1 (2023)
title: Ausgrabungen im römischen Kleinkastell Haselburg (Walldürn-Reinhardsachsen, Neckar-Odenwald-Kreis)
Creators: name: Nuber, Hans-Ulrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Hadronuclear interactions in the jet of low TeV luminosity AGN: Implications for the low-state very-high-energy gamma-ray emission
Creators: name: Xue, Rui
name: Wang, Ze-Rui
name: Li, Wei-Jian
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the study of radiation mechanisms of AGNs' jets, hadronuclear (pp) interactions are commonly neglected, because the number density of cold protons in the jet is considered insufficient. Very recently, our previous work proves that pp interactions in the low TeV luminosity AGNs, which have potential to generate detectable very-high-energy (VHE) emission, could be important. Based on this, the one-zone pp model is employed to study low-state quasi-simultaneous spectral energy distributions of a sample of low TeV luminosity AGNs in this work. Our modeling results show that the gamma-ray generated in pp interactions can explain the observed TeV spectra and has contribution to higher energy band that could be detected by the Large High Altitude Air Shower Observatory (LHAASO). In the sample, we suggest that M 87, Mrk 421 and Mrk 501 are the most likely objects to be detected by LHAASO in the near future. Other possible origins of VHE emission are also briefly discussed.
description: 18 pages, 13 figures, 2 tables.Accepted for publication in PhRvD
title: Ein Dachstuhl des 12. Jahrhunderts in der Klosterkirche zu Billigheim
Creators: name: Schubart, Peter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 2 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
New distribution spaces associated to translation-invariant Banach spaces
Creators: name: Dimovski, Pavel
name: Pilipovic, Stevan
name: Vindas, Jasson
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: Primary 46F05, 46E10. Secondary 46H25

description: We introduce and study new distribution spaces, the test function space $\mathcal{D}_E$ and its strong dual $\mathcal{D}'_{E'_{\ast}}$. These spaces generalize the Schwartz spaces $\mathcal{D}_{L^{q}}$, $\mathcal{D}'_{L^{p}}$, $\mathcal{B}'$ and their weighted versions. The construction of our new distribution spaces is based on the analysis of a suitable translation-invariant Banach space of distributions $E$ with continuous translation group, which turns out to be a convolution module over a Beurling algebra $L^{1}_ω$. The Banach space $E'_{\ast}$ stands for $L_{\checkω}^1\ast E'$. We also study convolution and multiplicative products on $\mathcal{D}'_{E'_{\ast}}$.
description: 19 pages
title: Präsident Dr. Graf Adelmann im Ruhestand
Creators: name: Hahn, Wilhelm
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 5, Nr. 3 (1976), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4