cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Complete Path Algebras and Rational Modules
Creators: name: Iovanov, M. C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 05C25, 16T15, 18E40, 16T30, 18G15

description: We study rational modules over complete path and monomial algebras, and the problem of when rational modules over the dual $C^*$ of a coalgebra $C$ are closed under extensions, equivalently, when is the functor $Rat$ a torsion functor. We show that coreflexivity, closure under extensions of finite dimensional rational modules and of arbitrary modules are Morita invariant, and that they are preserved by subcoalgebras. We obtain new large classes of examples of coalgebras with torsion functor, coming from monomial coalgebras, and answer some questions in the literature.
description: 13p; invited paper to special conference volume in honor of T. Albu and C. Nastasescu
Gowers' Ramsey theorem for generalized tetris operations
Creators: name: Lupini, Martino
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D10 (Primary), 54D80 (Secondary)

description: We prove a generalization of Gowers' theorem for $\mathrm{FIN}_{k}$ where, instead of the single tetris operation $T:\mathrm{FIN}_{k}\rightarrow \mathrm{FIN}_{k-1}$, one considers all maps from $\mathrm{FIN}_{k}$ to $\mathrm{FIN}_{j}$ for $0\leq j\leq k$ arising from nondecreasing surjections $f:\left\{ 0,1,\ldots ,k+1\right\} \rightarrow \left\{ 0,1,\ldots ,j+1\right\} $. This answers a question of Bartošová and Kwiatkowska. We also prove a common generalization of such a result and the Galvin--Glazer--Hindman theorem on finite products, in the setting of layered partial semigroups introduced by Farah, Hindman, and McLeod.
description: 8 pages
The HI Content of Galaxies in Groups and Clusters as Measured by ALFALFA
Creators: name: Odekon, Mary Crone
name: Koopmann, Rebecca A.
name: Haynes, Martha P.
name: Finn, Rose A.
name: McGowan, Christopher
name: Micula, Adina
name: Reed, Lyle
name: Giovanelli, Riccardo
name: Hallenbeck, Gregory
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the HI content of galaxies in nearby groups and clusters as measured by the 70% complete Arecibo Legacy Fast-ALFA (ALFALFA) survey, including constraints from ALFALFA detection limits. Our sample includes 22 systems at distances between 70-160 Mpc over the mass range 12.5
description: 17 pages, 9 figures, accepted by ApJ
title: GO-MORE – Analyse der deutschen Subpopulation zur Therapie der aktiven rheumatoiden Arthritis mit Golimumab und begleitender DMARD-Therapie
Creators: name: Schulze-Koops, Hendrik
name: Wollenhaupt, Jürgen
name: Winnemöller, Marita
name: Löffler, Helena
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: aktive rheumatoide Arthritis
subject: Leflunomid
subject: GO-MORE-Studie
subject: deutsche Subpopulation
subject: Biologika-naiv
subject: 610 Medical sciences; Medicine

description: Einleitung: Der humane monoklonale TNFα-Antikörper Golimumab (GLM) zeigte in klinischen Studien zur Behandlung der mittelschweren bis schweren aktiven rheumatoiden Arthritis (RA) ein gutes klinisches Ansprechen und ein gutes Verträglichkeitsprofil. Das konnte auch im Praxisalltag in [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 44. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh); 30. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh); 26. Jahrestagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
SHARP - II. Mass structure in strong lenses is not necessarily dark matter substructure: A flux ratio anomaly from an edge-on disc
Creators: name: Hsueh, J. - W.
name: Fassnacht, C. D.
name: Vegetti, S.
name: McKean, J. P.
name: Spingola, C.
name: Auger, M. W.
name: Koopmans, L. V. E.
name: Lagattuta, D. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Gravitational lens flux-ratio anomalies provide a powerful technique for measuring dark matter substructure in distant galaxies. However, before using these flux-ratio anomalies to test galaxy formation models, it is imperative to ascertain that the given anomalies are indeed due to the presence of dark matter substructure and not due to some other component of the lensing galaxy halo or to propagation effects. Here we present the case of CLASS~B1555+375, which has a strong radio-wavelength flux-ratio anomaly. Our high-resolution near-infrared Keck~II adaptive optics imaging and archival Hubble Space Telescope data reveal the lensing galaxy in this system to have a clear edge-on disc component that crosses directly over the pair of images that exhibit the flux-ratio anomaly. We find that simple models that include the disc can reproduce the cm-wavelength flux-ratio anomaly without requiring additional dark matter substructure. Although further studies are required, our results suggest the assumption that all flux-ratio anomalies are due to a population of dark matter sub-haloes may be incorrect, and analyses that do not account for the full complexity of the lens macro-model may overestimate the substructure mass fraction in massive lensing galaxies.
description: 6 pages, submitted to MNRAS
ECONOMIC AND MATHEMATICAL MODEL FOR EVALUATING THE QUALITY OF ENTERPRISE MANAGEMENT Item
Creators: name: Kramar, Marian
Publisher: name: figshare
Year: 2022
Subjects: Economics

description: The object of the research is the peculiarities of the formation, use and improvement of the economic-mathematical model for assessing the quality of enterprise management. The internal environment of any enterprise is determined by internal variables (factors of the internal environment or situational factors), taking into account the influence (direct, indirect) of external environmental factors on them in conditions of uncertainty and risk. It is noted that among the problematic issues in the company's activity, the problem of forming and evaluating an effective management system should be singled out, taking into account changes in the external and internal environment in market conditions.
Einstein@Home All-sky Search for Continuous Gravitational Waves in LIGO O2 Public Data
Creators: name: Steltner, B.
name: Papa, M.A.
name: Eggenstein, H.-B.
name: Allen, B.
name: Dergachev, V.
name: Prix, R.
name: Machenschalk, B.
name: Walsh, S.
name: Zhu, S.J.
name: Behnke, O.
name: Kwang, S.
Publisher: name: London : Institute of Physics Publ.
Year: 2021
Subjects: subject: Gravitational waves
subject: Neutron stars
subject: Compact objects
subject: Astronomy data analysis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie

description: We conduct an all-sky search for continuous gravitational waves in the LIGO O2 data from the Hanford and Livingston detectors. We search for nearly monochromatic signals with frequency 20.0 Hz ≤ f ≤ 585.15 Hz and spin-down -2.6 × 10-9 Hz s-1 f 2.6 × 10-10 Hz s-1. We deploy the search on the Einstein@Home volunteer-computing project and follow-up the waveforms associated with the most significant results with eight further search stages, reaching the best sensitivity ever achieved by an all-sky survey up to 500 Hz. Six of the inspected waveforms pass all the stages but they are all associated with hardware injections, which are fake signals simulated at the LIGO detector for validation purposes. We recover all these fake signals with consistent parameters. No other waveform survives, so we find no evidence of a continuous gravitational wave signal at the detectability level of our search. We constrain the h 0 amplitude of continuous gravitational waves at the detector as a function of the signal frequency, in half-Hz bins. The most constraining upper limit at 163.0 Hz is h 0 = 1.3 × 10-25, at the 90% confidence level. Our results exclude neutron stars rotating faster than 5 ms with equatorial ellipticities larger than 10-7 closer than 100 pc. These are deformations that neutron star crusts could easily support, according to some models.
title: Baricitinib, Methotrexate, or Baricitinib Plus Methotrexate in Patients with Early Rheumatoid Arthritis Who Had Received Limited or No Treatment with Disease-Modifying Anti-Rheumatic Drugs (DMARDs): Phase 3 Trial Results
Creators: name: Fleischmann, Roy
name: Takeuchi, Tsutomu
name: Schlichting, Douglas
name: Macias, William
name: Rooney, Terence
name: Gurbuz, Sirel
name: Stoykov, Ivaylo
name: Beattie, Scott
name: Kuo, Wen-Ling
name: Schiff, Michael
name: Kekow, Jörn
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Protein Kinase Inhibitors
subject: Rheumatoid Arthritis
subject: Clinical Trial Phase III
subject: 610 Medical sciences; Medicine

description: Background: In phase 3 studies, baricitinib improved disease activity with a satisfactory safety profile in patients with moderately-to-severely active RA who were inadequate responders to DMARDs. We report results from a phase 3 study of baricitinib administered as monotherapy or in combination with[for full text, please go to the a.m. URL]
description: 44. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh); 30. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh); 26. Jahrestagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Hopping conductivity and insulator-metal transition in films of touching semiconductor nanocrystals
Creators: name: Fu, Han
name: Reich, K. V.
name: Shklovskii, B. I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This paper is focused on the the variable-range hopping of electrons in semiconductor nanocrystal (NC) films below the critical doping concentration $n_c$ at which it becomes metallic. The hopping conductivity is described by the Efros-Shklovskii law which depends on the localization length of electrons. We study how the localization length grows with the doping concentration $n$ in the film of touching NCs. For that we calculate the electron transfer matrix element $t(n)$ between neighboring NCs for two models when NCs touch by small facets or just one point. We study two sources of disorder: variations of NC diameters and random Coulomb potentials originating from random numbers of donors in NCs. We use the ratio of $t(n)$ to the disorder-induced NC level dispersion to find the localization length of electrons due to the multi-step elastic co-tunneling process. We found three different phases at $n
Frequency-dependent polarizability, plasmons, and screening in the 2D pseudospin-1 dice lattice
Creators: name: Malcolm, John D.
name: Nicol, Elisabeth J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We calculate the dynamic polarizability under the random phase approximation for the dice lattice. This two-dimensional system gives rise to massless Dirac fermions with pseudospin-1 in the low-energy quantum excitation spectrum, providing a Dirac-cone plus flat-band dispersion. Due to the presence of the flat band, the polarizability shows key differences to that of graphene (the pseudospin-1/2 Dirac material). We find that the plasmon branch is pinched in to a single point, $ω_p=q=μ$, independent of the background dielectric constant. Finally, screening effects are discussed with regard to impurities.
description: Revised version correcting an error; 8 pages, 8 figures; Submitted for publication in PRB
Relationship between eDNA concentration from metabarcoding method and stream fish density under field conditions
Creators: name: Nakagawa, Hikaru
Publisher: name: Zenodo
Year: 2022

description: Estimating abundance or biomass using eDNA metabarcoding is a powerful emerging tool that may provide an alternative to conventional laborious methods for biological monitoring. However, inferring aquatic macroorganism abundance or biomass using eDNA concentrations remains challenging, especially in lotic environments, because of several potential confounding factors. In this study, we tested whether quantitative eDNA metabarcoding that uses internal standard DNA can be used to estimate the abundance of four fish species. We collected eDNA samples and concurrently estimated fish densities using the conventional removal method in small tributaries in four seasons during a year. The effects of potential confounding factors, including the body mass of the individuals, water temperature, and discharge volume, were assessed using an allometric scaling model. We found an increasing trend of eDNA concentration against the increase in abundance across all species. In the most abundant species, a significant increase in the precision of predicted abundance was achieved by considering confounding factors, such as season and discharge. Although this study successfully determined the relationships between eDNA concentration and fish abundance under lotic field conditions, it also identified several limitations of quantitative eDNA metabarcoding. The relationship between eDNA concentration and fish abundance in rare species showed significant variances in the regression. More sequencing depth may be necessary to detect rare species sufficiently. The eDNA concentration estimation error effect was significant, particularly among the samples that showed the same abundance figures by direct capture estimation. The utilization of quantitative eDNA metabarcoding may be suitable for organisms that are expected to have a substantial variation in their population density. More comparative studies with various conventional methods would be informative, especially in lotic field environments, to overcome these limitations and achieve wider applications of eDNA metabarcoding in future research and monitoring.
description: Funding provided by: Japan Society for the Promotion of Science
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001691
Award Number: JP19K15857
Localized Optical Vortex Solitons in Pair Plasmas
Creators: name: Medina, Luciano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The dynamics of short intense electromagnetic pulses propagating in a relativistic pair plasma with small temperature asymmetry is of current interest. Such pulses were shown to be governed by a nonlinear Schrodinger equation with a new type of focusing-defocusing nonlinearity. We provide an existence theory and numerical analysis for a special class of solutions, known as "ring-profiled" optical vortex solitons. Our methods include both a direct and constrained minimization. We give a necessary condition for the existence of nontrivial solutions and a series of interesting estimates in terms of the relevant parameters describing the electromagnetic pulse. Additionally, we use the constrained minimization approach and a finite element formalism to numerically study the behavior of the profiles of soliton solutions.
description: 18 pages, numerical results added
Testing General Relativity with Gravitational Waves: An Overview
Creators: name: Krishnendu, N.V.
name: Ohme, Frank
Publisher: name: Basel : MDPI
Year: 2021
Subjects: subject: Compact binary systems
subject: Gravitational waves
subject: Tests of General Relativity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The detections of gravitational-wave (GW) signals from compact binary coalescence by ground-based detectors have opened up the era of GW astronomy. These observations provide opportunities to test Einstein’s general theory of relativity at the strong-field regime. Here we give a brief overview of the various GW-based tests of General Relativity (GR) performed by the LIGO-Virgo collaboration on the detected GW events to date. After providing details for the tests performed in four categories, we discuss the prospects for each test in the context of future GW detectors. The four categories of tests include the consistency tests, parametrized tests for GW generation and propagation, tests for the merger remnant properties, and GW polarization tests.
The Manufactured Guerrilla: A Proposed Model for Analyzing the Latent Potential for Resistance and Insurgency in Taiwan
Creators: name: Watson, James
Publisher: name: Stanford Digital Repository
Year: 2025
Subjects: subject: Taiwan
subject: Insurgency
subject: Guerrilla Warfare
subject: Stanford Global Studies
subject: East Asian Studies

description: This thesis addresses existing discourse surrounding the potential incorporation of insurgency or guerrilla warfare into an asymmetric defense concept for Taiwan.  Its central research question is whether insurgency is a viable model of resistance in Taiwan. This study begins by reviewing the existing discourse surrounding this topic.  It examines the current advocacy for insurgency or asymmetric warfare, arguments against insurgency both in Taiwan and more generally, and identifies areas where this discourse in underdeveloped.  It next reviews disparate academic definitions of insurgency and synthesizes the existing advocacy into a proposed definition and typology of insurgency in Taiwan.  This thesis then draws upon frameworks for the analysis of insurgency and social science theory to develop a model for forecasting the potential for insurgency generation and sustainment in a society and applies this model to contemporary Taiwan.
Interviews
Creators: Christensen, Lars Bjarke
Publisher: name: Rigsarkivet
Year: 2023

description: Digitale båndoptagelser af samtaler og interviews udført i forbindelse med bogen Peter Knutzen – Jeg frygter ikke Historiens Dom om DSB's generaldirektør Peter Knutzen (1931-1945) og bog om DSB's generaldirektør Povl Hjelt (1970-1981)
Quantifying the Relationship Between Economic Crises and Political Unrest
Creators: name: Furlong, Andrew
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 10401 Applied Statistics
subject: FOS: Mathematics

description: It is often assumed that banking crises (a phenomenon wherein a country’s banking services do not have sufficient liquidity to cover all demand) have a relationship with political instability. However, political scientists have had difficulty quantifying this relationship, due to the many factors that play a role in these events. Using economic and political data provided by Dr. Daniel Hansen (CMU, IRP), our paper aims to build on preliminary research in this area, specifically focusing on more advanced statistical modeling techniques. This will allow us to predict revolutions at a high accuracy rate and identify variables which are strongly related to the onset of political instability. We construct our models on our entire dataset rather than a subset of specific countries in order to focus on broader trends in the geopolicial climate and also learn more about which factors in particular are influential in predicting unrest. We constructed additional time series models such as the Hidden Markov Model to understand whether this played a role in the onset of revolutions. Over the course of this project, we conclude that we can predict political instability using economics data, and we identify a number of variables in our dataset relating to economics, geography, and government structure that are strong predictors of political instability in countries around the globe.
Exploring the foundations of the physical universe with space tests of the equivalence principle
Creators: name: Battelier, Baptiste
name: Bergé, Joël
name: Bertoldi, Andrea
name: Blanchet, Luc
name: Bongs, Kai
name: Bouyer, Philippe
name: Braxmaier, Claus
name: Calonico, Davide
name: Fayet, Pierre
name: Gaaloul, Naceur
name: Guerlin, Christine
name: Hees, Aurélien
name: Jetzer, Philippe
name: Lämmerzahl, Claus
name: Lecomte, Steve
name: Le Poncin-Lafitte, Christophe
name: Loriani, Sina
name: Métris, Gilles
name: Nofrarias, Miquel
name: Rasel, Ernst
name: Reynaud, Serge
name: Rodrigues, Manuel
name: Rothacher, Markus
name: Roura, Albert
name: Salomon, Christophe
name: Schiller, Stephan
name: Schleich, Wolfgang P.
name: Schubert, Christian
name: Sopuerta, Carlos F.
name: Sorrentino, Fiodor
name: Sumner, Timothy J.
name: Tino, Guglielmo M.
name: Tuckey, Philip
name: Klitzing, Wolf Von
name: Wörner, Lisa
name: Wolf, Peter
name: Zelan, Martin
Publisher: name: Dordrecht [u.a.] : Springer Science + Business Media B.V.
Year: 2021
Subjects: subject: Electrostatic accelerometers
subject: Equivalence principle
subject: Quantum technologies
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie

description: We present the scientific motivation for future space tests of the equivalence principle, and in particular the universality of free fall, at the 10− 17 level or better. Two possible mission scenarios, one based on quantum technologies, the other on electrostatic accelerometers, that could reach that goal are briefly discussed. This publication is a White Paper written in the context of the Voyage 2050 ESA Call for White Papers.
Accelerated ageing of surface modified flax fiber reinforced composites
Creators: name: Vellguth, Natalie
name: Shamsuyeva, Madina
name: Endres, Hans-Josef
name: Renz, Franz
Publisher: name: Amsterdam : Elsevier
Year: 2021
Subjects: subject: Biocomposites
subject: Climate chamber
subject: Epoxy coating
subject: Flax fibers
subject: Polyamide
subject: Silane treatment
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The overall aim of this study is to evaluate application-oriented potential of biocomposites made of surface-modified flax fibers for use in engineering thermoplastics. The scope of the study includes analysis of the effect of a partially bio-based epoxy-coating, a silane treatment and a combined epoxy-coating / silane treatment of the flax fibers on the mechanical behavior of biocomposites after thermo-oxidative aging. The treated flax fabrics were subjected to tensile tests as well as scanning electron microscopy (SEM) to compare their mechanical behavior and fracture surface. The natural fiber reinforced biocomposites were manufactured through film-stacking of the treated fabrics and polyamide 6 (PA6) using hot-pressing. The durability of the biocomposites after climate-change tests was confirmed via tensile and bending testing. The results show beneficial mechanical behavior of treated fabrics and corresponding biocomposites, but also negative affected durability of treated composites after climate-change tests. Treatment of the fabrics with subsequent accelerated aging leads to a similar low level of tensile and bending moduli.
The Role of Cultural Values in Shaping Mental Health Related Attitudes: A Cross- Cultural Study
Creators: name: Ivantechenko, Marie
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 111714 Mental Health
subject: FOS: Health sciences

description: Although there are efficacious treatments, many individuals who have mental illnesses either do not finish their treatment course or do not seek treatment at all. A primary reason for this is thought to be the stigma that exists around mental health. There is variability in this stigma around the world. This research had three goals. First, we aimed to examine group differences in attitudes toward mental health by comparing Russians, Russian Americans, and Americans. Second, we aimed to understand whether cultural values are related to attitudes toward mental health by examining collectivism, individualism, and support preferences. Finally, we aimed to examine whether these cultural values explain the group differences in attitudes toward mental health. The questions were addressed by a two-part study involving a questionnaire and an interview. Results showed that Russians and Americans were more likely to attribute mental health problems as medical problems and to endorse seeking help for mental health problems compared to Russian Americans. While we did not find any group differences in collectivism or individualism, Russians preferred emotional support more than Russian Americans with Americans falling between the two groups. Finally, across all three groups, individualism was related to more personal mental health stigma and less endorsement of seeking support for mental health problems. These findings suggest that cultural values are important factors to be considered when understanding attitudes toward mental health and designing interventions that increase utilization of mental health services.
title: Behandlungskosten bei RA-Patienten unter DMARD-Dosisreduktion – eine ökonomische Analyse der prospektiven, randomisiert-kontrollierten RETRO-Studie
Creators: name: Hagen, Melanie
name: Haschka, Judith
name: Reiser, Michaela
name: Figueiredo, Camille P.
name: Cobra, Jayme Fogagnolo
name: Englbrecht, Matthias
name: Hueber, Axel
name: Manger, Bernhard
name: Kleyer, Arnd
name: Finzel, Stephanie
name: Tony, Hans-Peter
name: Kleinert, Stefan
name: Wendler, Jörg
name: Schuch, Florian
name: Ronneberger, Monika
name: Feuchtenberger, Martin
name: Fleck, Martin
name: Manger, Karin
name: Ochs, Wolfgang
name: Schmitt-Haendle, Matthias
name: Lorenz, Hanns-Martin
name: Nüßlein, Hubert G.
name: Alten, Rieke H.-E.
name: Henes, Jörg
name: Krüger, Klaus
name: Schett, Georg
name: Rech, Jürgen
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Dosisreduktion
subject: Behandlungskosten
subject: DMARD
subject: RETRO-Studie
subject: 610 Medical sciences; Medicine

description: Einleitung: Klinische Remission stellt das wichtigste Therapieziel bei Patienten mit rheumatoider Arthritis (RA) dar. Durch die Entwicklung und den ubiquitären Einsatz hochpotenter disease modifying anti-rheumatic drugs (DMARD), erreicht inzwischen etwa die Hälfte aller behandelten RA-Patienten[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 44. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh); 30. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh); 26. Jahrestagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Trinomials defining quintic number fields
Creators: name: Patsolic, Jesse
name: Rouse, Jeremy
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G30 (Primary), 11D41, 11G05 (Secondary)

description: Given a quintic number field $K/\mathbb{Q}$, we study the set of irreducible trinomials, polynomials of the form $x^{5} + ax + b$, that have a root in $K$. We show that there is a genus four curve $C_{K}$ whose rational points are in bijection with such trinomials. This curve $C_{K}$ maps to an elliptic curve defined over a number field, and using this map, we are able (in some cases) to determine all the rational points on $C_{K}$ using elliptic curve Chabauty.
description: 12 pages
GTC/CanariCam Deep Mid-infrared Imaging Survey of Northern Stars within 5 pc
Creators: name: Gauza, Bartosz
name: Béjar, Víctor J. S.
name: Rebolo, Rafael
name: Álvarez, Carlos
name: Zapatero Osorio, María Rosa
name: Bihain, Gabriel
name: Caballero, José A.
name: Pinfield, David J.
name: Telesco, Charles M.
name: Packham, Christopher
Publisher: name: London : Institute of Physics Publ.
Year: 2021
Subjects: subject: high resulution spectroscopy
subject: extrasolar giant planets
subject: M-dwarf
subject: occurance rates
subject: stellar companions
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie

description: In this work we present the results of a direct imaging survey for brown dwarf companions around the nearest stars at the mid-infrared 10 micron range (λ c = 8.7 μm, Δλ = 1.1 μm) using the CanariCam instrument on the 10.4 m Gran Telescopio Canarias (GTC). We imaged the 25 nearest stellar systems within 5 pc of the Sun at declinations δ > -25° (at least half have planets from radial-velocity studies), reaching a mean detection limit of 11.3 ± 0.2 mag (1.5 mJy) in the Si-2 8.7 μm band over a range of angular separations from 1″ to 10″. This would have allowed us to uncover substellar companions at projected orbital separations between ∼2 and 50 au, with effective temperatures down to 600 K and masses greater than 30 M Jup assuming an average age of 5 Gyr and masses down to the deuterium-burning mass limit for objects with ages <1 Gyr. From the nondetection of such companions, we determined upper limits on their occurrence rate at depths and orbital separations yet unexplored by deep imaging programs. For the M dwarfs, the main component of our sample, we found with a 90% confidence level that fewer than 20% of these low-mass stars have L- and T-type brown dwarf companions with m ⪆ 30 M Jup and T eff ⪆ 600 K at ∼3.5-35 au projected orbital separations.
Roche tomography of cataclysmic variables - VII. The long-term magnetic activity of AE Aqr
Creators: name: Hill, C. A.
name: Watson, C. A.
name: Steeghs, D.
name: Dhillon, V. S.
name: Shahbaz, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a long-term study of the secondary star in the cataclysmic variable AE~Aqr, using Roche tomography to indirectly image starspots on the stellar surface spanning 8~years of observations. The 7 maps show an abundance of spot features at both high and low latitudes. We find that all maps have at least one large high-latitude spot region, and we discuss its complex evolution between maps, as well as its compatibility with current dynamo theories. Furthermore, we see the apparent growth in fractional spot coverage, $f_{\mathrm{s}}$, around $45^{\circ}$~latitude over the duration of observations, with a persistently high $f_{\mathrm{s}}$ near latitudes of $20^{\circ}$. These bands of spots may form as part of a magnetic activity cycle, with magnetic flux tubes emerging at different latitudes, similar to the `butterfly' diagram for the Sun. We discuss the nature of flux tube emergence in close binaries, as well as the activity of AE~Aqr in the context of other stars.
description: 19 pages, 20 figures, Submitted to MNRAS
Quantum Variational Optimization of Ramsey Interferometry and Atomic Clocks
Creators: name: Kaubruegger, Raphael
name: Vasilyev, Denis V.
name: Schulte, Marius
name: Hammerer, Klemens
name: Zoller, Peter
Publisher: name: College Park, Md. : APS
Year: 2021
Subjects: subject: Atomic clocks
subject: Bayesian networks
subject: Cost functions
subject: Interferometry
subject: Optical lattices
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We discuss quantum variational optimization of Ramsey interferometry with ensembles of N entangled atoms, and its application to atomic clocks based on a Bayesian approach to phase estimation. We identify best input states and generalized measurements within a variational approximation for the corresponding entangling and decoding quantum circuits. These circuits are built from basic quantum operations available for the particular sensor platform, such as one-axis twisting, or finite range interactions. Optimization is defined relative to a cost function, which in the present study is the Bayesian mean squared error of the estimated phase for a given prior distribution; i.e., we optimize for a finite dynamic range of the interferometer. In analogous variational optimizations of optical atomic clocks, we use the Allan deviation for a given Ramsey interrogation time as the relevant cost function for the long-term instability. Remarkably, even low-depth quantum circuits yield excellent results that closely approach the fundamental quantum limits for optimal Ramsey interferometry and atomic clocks. The quantum metrological schemes identified here are readily applicable to atomic clocks based on optical lattices, tweezer arrays, or trapped ions. While in the present work variationally optimized circuits are found with classical simulations, optimization can also be performed "on"the (physical) quantum sensor, also in regimes not accessible to classical computations and in the presence of imperfections.
title: Welche Vorteile bietet die konservative Therapie der Radiushalsfraktur gegenüber der Osteosynthese?
Creators: name: Keil, Holger
name: Schnetzke, Marc
name: Kocharyan, Arpine
name: Grützner, Paul Alfred
name: Franke, Jochen
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Radiushalsfraktur
subject: Ellenbogen
subject: konservative Therapie
subject: 610 Medical sciences; Medicine

description: Fragestellung: Radiushalsfrakturen stellen beim Erwachsenen eine seltene Entität dar, die zu erheblichen Einschränkungen in der Funktion des Ellenbogens führen können. Dezidierte Nachuntersuchungen über die Ergebnisse von konservativer und operativer Therapie liegen bislang [zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)
An Opportunity to Rectify History: China's 2014 Outline for the Semiconductor Industry
Creators: name: George, Sam Chetwin
Publisher: name: Stanford Digital Repository
Year: 2022
Subjects: subject: Semiconductors
subject: High technology industries--Government policy
subject: History
subject: Political science
subject: FOS: Political science
subject: Communist parties
subject: China

description: This thesis seeks to understand the process over the period 2010–14 that led to the issuing of one of China’s most important and consequential techno-nationalist industrial policies, the “Outline for Advancing the Development of the National Semiconductor Industry” (“the 2014 Outline”). It is motivated by the observation that in 2013–14, Beijing’s articulation of the importance of its domestic semiconductor capabilities emphasised the industry’s centrality to information security and national security more prominently than the preceding years. This shift towards “hard techno-nationalism” coincided with a set of developments that changed Beijing’s assessments of China’s strategic circumstances. The documentary evidence suggests that Beijing’s concerns about American containment of China’s rise, anxiety about the new dimensions of information security, aggravated by the Snowden revelations of June 2013, and perception that China’s “period of strategic opportunity” to develop its national power was narrowing all motivated China’s leaders to take urgent and major action to develop China’s core technological capabilities in a short period of time. The urgency visible in the documents and speeches from this time reflect the Party’s narrative that China’s weakness and national humiliation were intimately linked to its failure to exploit periods of opportunity to develop its technological capabilities. The genesis of the 2014 Outline, therefore, must be understood as the final attempt to rectify a history of failures.
Threshold pion production in proton-proton collisions at NNLO in chiral EFT
Creators: name: Baru, V.
name: Epelbaum, E.
name: Filin, A. A.
name: Hanhart, C.
name: Krebs, H.
name: Myhrer, F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The reaction $NN \to NN π$ offers a good testing ground for chiral effective field theory at intermediate energies. It challenges our understanding of the first inelastic channel in nucleon-nucleon scattering and of the charge-symmetry breaking pattern in hadronic reactions. In our previous studies, we presented a complete calculation of the pion-production operator for s-wave pions up-to-and-including next-to-next-to-leading order (NNLO) in the formulation of chiral effective field theory, which includes pions, nucleons and $Δ(1232)$ degrees of freedom. In this paper we calculate the near threshold cross section for the $pp \to d π^{+}$ reaction by performing the convolution of the obtained operators with nuclear wave functions based on modern phenomenological and chiral potentials. The available chiral $NN$ wave functions are constructed with a cutoff comparable with the momentum transfer scale inherent in pion production reactions. Hence, a significant portion of the dynamical intermediate-range physics is thereby cut off by them. On the other hand, the NNLO amplitudes evaluated with phenomenological wave functions appear to be largely independent of the $NN$ model used and give corrections to the dominant leading order contributions as expected from dimensional analysis. The result gives support to the counting scheme used to classify the pion production operators, which is a precondition for a reliable investigation of the chirally suppressed neutral pion production. The explicit inclusion of the $Δ(1232)$ is found to be important but smaller than expected due to cancellations.
description: 25 pages, 7 figures, 2 tables
Real-time Search for Compact Binary Mergers in Advanced LIGO and Virgo's Third Observing Run Using PyCBC Live
Creators: name: Dal Canton, Tito
name: Nitz, Alexander H.
name: Gadre, Bhooshan
name: Cabourn Davies, Gareth S.
name: Villa-Ortega, Verónica
name: Dent, Thomas
name: Harry, Ian
name: Xiao, Liting
Publisher: name: London : Institute of Physics Publ.
Year: 2021
Subjects: subject: population properties
subject: 1st
subject: Dewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie, Kartographie

description: The third observing run of Advanced LIGO and Advanced Virgo took place between 2019 April and 2020 March and resulted in dozens of gravitational-wave candidates, many of which are now published as confident detections. A crucial requirement of the third observing run was the rapid identification and public reporting of compact binary mergers, which enabled massive follow-up observation campaigns with electromagnetic and neutrino observatories. PyCBC Live is a low-latency search for compact binary mergers based on frequency-domain matched filtering, which was used during the second and third observing runs, together with other low-latency analyses, to generate these rapid alerts from the data acquired by LIGO and Virgo. This paper describes and evaluates the improvements made to PyCBC Live after the second observing run, which defined its operation and performance during the third observing run.
Starting Blurry: The Impact of Initial Sensitivity to Low Spatial Frequencies on Infant Categorization Skills
Creators: name: Jinsi, Omisa
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology

description: Humans are born with very low visual acuity, forcing infants to view the world “in a blur”. Gradually, the range of spatial frequencies realized in the retinal map to V1 increases, allowing infants to see their surroundings in more detail. Is there any functional advantage for infants’ initial low perceptual acuity? This study explores whether reduced visual acuity among infants facilitates both learning rate and asymptotic accuracy in the acquisition of basic-level visual categories and, if so, whether such a boost assists in learning subordinate-level categories once visual acuity improves. Using convolutional neural networks (CNNs) to simulate an infant’s visual development, we compared models that differed in terms of rate of decrease in blur, type of image (grayscale versus colored), and number of blurred inputs. Experiments revealed that gradual blur improves basic-level model performance, but only under conditions where the model environment is constrained, much like the restricted environments infants experience during early development. Furthermore, we found that all models initially trained on basic-level categories performed better during subordinate-level categorization training than models trained solely on subordinate-level categories. We conclude that poor visual acuity in human newborns is not an accident - rather it confers an important initial advantage in bootstrapping an infant’s acquisition of visual object categories.
title: Multifunktionale adhäsive Trägersysteme für Knochentherapeutika aus Polyelektrolytkomplex-Nanopartikeln
Creators: name: Müller, Martin
name: Vehlow, David
name: Appelhans, Dietmar
name: Hempel, Ute
name: Gebert, Annett
name: Cavalcanti-Adam, Elisabetta Ada
name: Lips, Katrin S.
name: Gelinsky, Michael
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Knochenersatzmaterial
subject: Drug Delivery
subject: Arzneistoffträgersystem
subject: Bisphosphonat
subject: Statin
subject: BMP-2
subject: Polyelektrolytkomplex
subject: Nanopartikel
subject: 610 Medical sciences; Medicine

description: Fragestellung: Die lokale Therapie von Knochendefekten im Zusammenhang mit systemischen Knochenerkrankungen (Osteoporose, Multiples Myelom) ist noch unzureichend. Es gibt daher Bestrebungen, allotrope Knochenersatzmaterialien (KEM), die den Defekt füllen oder stabilisieren, mit Trägersystemen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)
title: Tenotomie und Kernnaht der murinen Achillessehne als kliniknahes in-vivo Sehnenheilungsmodell
Creators: name: Michel, Philipp
name: Kronenberg, Daniel
name: Neu, Gertje
name: Ma, Wei
name: Pap, Thomas
name: Raschke, Michael Johannes
name: Stange, Richard
Publisher: name: German Medical Science GMS Publishing House
Year: 2016
Subjects: subject: Sehnenheilung
subject: in-vivo Maus-Modell
subject: Achillessehne
subject: Tenotomie
subject: 610 Medical sciences; Medicine

description: Fragestellung: Das bei der Sehnenheilung entstehende Regenerationsgewebe erreicht nicht mehr die Stabilität und Belastbarkeit einer unverletzten Sehne. Gängige murine in-vivo Heilungsmodelle mit solitären "punch-Verletzungen" ohne Naht spiegeln oft nicht die klinische Realität[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2016)
Semiperfect and coreflexive coalgebras
Creators: name: Dascalescu, Sorin
name: Iovanov, Miodrag C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16T15, 16T05, 05C38, 06A11, 16T30

description: We study non-counital coalgebras and their dual non-unital algebras, and introduce the finite dual of a non-unital algebra. We show that a theory that parallels in good part the duality in the unital case can be constructed. Using this, we introduce a new notion of left coreflexivity for counital coalgebras, namely, a coalgebra is left coreflexive if $C$ is isomorphic canonically to the finite dual of its left rational dual $Rat(_{C^*}C^*)$. We show that right semiperfectness for coalgebras is in fact essentially equivalent to this left reflexivity condition, and we give the connection to usual coreflexivity. As application, we give a generalization of some recent results connecting dual objects such as quiver or incidence algebras and coalgebras, and show that Hopf algebras with non-zero integrals (compact quantum groups) are coreflexive.
description: 14pp; published version 22pp
Threefold extremal contractions of type (IIA), I
Creators: name: Mori, Shigefumi
name: Prokhorov, Yuri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J30, 14E05, 14E30

description: Let $(X, C)$ be a germ of a threefold $X$ with terminal singularities along an irreducible reduced complete curve $C$ with a contraction $f: (X, C)\to (Z, o)$ such that $C=f^{-1}(o)_{red}$ and $-K_X$ is ample. Assume that $(X, C)$ contains a point of type (IIA) and that a general member $H\in |O_X|$ containing $C$ is normal. We classify such germs in terms of $H$.
description: 26 pages, latex
Nonaffine deformation under compression and decompression of a flow-stabilized solid
Creators: name: Ortiz, Carlos P.
name: Riehn, Robert
name: Daniels, Karen E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Understanding the particle-scale transition from elastic deformation to plastic flow is central to making predictions about the bulk material properties and response of disordered materials. To address this issue, we perform experiments on flow-stabilized solids composed of micron-scale spheres within a microfluidic channel, in a regime where particle inertia is negligible. Each solid heap exists within a stress gradient imposed by the flow, and we track the positions of particles in response to single impulses of fluid-driven compression or decompression. We find that the resulting deformation field is well-decomposed into an affine field, with a constant strain profile throughout the solid, and a non-affine field. The magnitude of this non-affine response decays with the distance from the free surface in the long-time limit, suggesting that the distance from jamming plays a significant role in controlling the length scale of plastic flow. Finally, we observe that compressive pulses create more rearrangements than decompressive pulses, an effect that we quantify using the $D^2_\mathrm{min}$ statistic for non-affine motion. Unexpectedly, the time scale for the compression response is shorter than for decompression at the same strain (but unequal pressure), providing insight into the coupling between deformation and cage-breaking.
Influence of nonlocal damping on the field-driven domain wall motion
Creators: name: Yuan, H. Y.
name: Yuan, Zhe
name: Xia, Ke
name: Wang, X. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive the complete expression of nonlocal damping in noncollinear magnetization due to the nonuniform spin current pumped by precessional magnetization and incorporate it into a generalized Thiele equation to study its effects on the dynamics of the transverse and vortex domain walls (DWs) in ferromagnetic nanowires. We demonstrate that the transverse component of nonlocal damping slows down the field-driven DW propagation and increases the Walker breakdown field whereas it is neglected in many previous works in literature. The experimentally measured DW mobility variation with the damping tuned by doping with heavy rare-earth elements that had discrepancy from micromagnetic simulation are now well understood with the nonlocal damping. Our results suggest that the nonlocal damping should be properly included as a prerequisite for quantitative studies of current-induced torques in noncollinear magnetization.
description: 9 pages, 4 figures
Indberetning af elevfravær for kommunale skoler
Creators: Styrelsen for IT og Læring
Publisher: name: Rigsarkivet
Year: 2023

description: I systemet registreres elevfravær i grundskolen. Fravær fra undervisningen skal registreres, da et fravær betyder manglende opfyldelse af undervisningspligten. Ved fravær skal forældrene give skolen oplysning om grunden til fraværet, da forældrene skal medvirke til, at barnet opfylder undervisningspligten
ReadHy-profiler af patienter med kronisk tarmsygdom
Creators: Hospitalsenhed MIDT, regionshospitalet silkeborg (og Københavns Universitet)
Amalie Søgård Nilesen
Publisher: name: Rigsarkivet
Year: 2023

description: En survey af patientpopulation på Regionshospitalet Silkeborg (Patienter i behandling for Inflammatorisk Tarmsygdom).Formålet er at undersøge patienternes parathed til at bruge digitale løsninger i deres behandling.