cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Constraining Mixed Dark-Matter Scenarios of WIMPs and Primordial Black Holes from CMB and 21-cm observations
Creators: name: Tashiro, Hiroyuki
name: Kadota, Kenji
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the dark matter (DM) scenarios consisting of the mixture of WIMPs and PBHs and study how much fraction of the total DM can be PBHs. In such scenarios, PBHs can accrete the WIMPs and consequently enhance the heating and ionization in the intergalactic medium due to WIMP annihilations. We demonstrate that the CMB data can give the stringent bounds on the allowed PBH fraction which are comparable or even tighter than those from the gamma ray data depending on the DM masses. For instance, the MCMC likelihood analysis using the Planck CMB data leads to the bound on PBH DM fraction with respect to the total dark matter $f_{\rm PBH} \lesssim {\cal O}( 10^{-10}\sim 10^{-8})$ for the WIMP mass $m_χ\sim {\cal O}(10\sim 10^3)$ GeV with the conventional DM annihilation cross section $\langle σv \rangle=3 \times 10^{-26}~\rm cm^3/s $. We also investigate the feasibility of the global 21-cm signal measurement to provide the stringent constraints on the PBH fraction.
description: 11 pages, 8 figures, matches the published version in PRD
Brief an Lienhart und Agnes Ortenberg
Creators: name: Ortenberg, Friedlin
Publisher: name: [s.n.]
Year: 1459

description: von Friedlin Ortenberg
description: Deutsch
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Agronomic Traits and Fruit Quality of Pineapple with Different Levels of Chicken Manure Application
Creators: name: Auraiwan Isuwan
Publisher: name: Silpakorn University Research and Development Institute
Year: 2014
Subjects: Ananas comosus, Chicken manure, Plant growth, Yield, Fine-silty soil

description: 1, 8, Silpakorn University Science and Technology Journal
Hector, a fast simulator for the transport of particles in beamlines
Creators: name: de Jeneret, J. de Favereau
name: Rouby, X.
name: Piotrzkowski, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Computing the trajectories of particles in generic beamlines is an important ingredient of experimental particle physics, in particular regarding near-beam detectors. A new tool, Hector, has been built for such calculations, using the transfer matrix approach and energy corrections. The limiting aperture effects are also taken into account. As an illustration, the tool was used to simulate the LHC beamlines, in particular around the high luminosity interaction points (IPs), and validated with results of the Mad-X simulator. The LHC beam profiles, trajectories and beta functions are presented. Assuming certain forward proton detector scenarios around the IP5, acceptance plots, irradiation doses and chromaticity grids are produced. Furthermore, the reconstruction of proton kinematic variables at the IP (energy and angle) is studied as well as the impact of the misalignment of beamline elements.
description: 40 pages, 20 figures; added references, corrected typos ; submitted to JINST
Brief an Lienhart und Agnes Ortenberg
Creators: name: Ortenberg, Friedlin
Publisher: name: [s.n.]
Year: 1460

description: von Friedlin Ortenberg
description: Deutsch
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Impaired development of B cells with PRF1 variants in an adult
Creators: name: Tsubata, T
name: Umezawa, N
name: Yasumi, T
name: Kanegane, H
name: Yasuda, S
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Impaired development of B cells with PRF1 variants in an adult
Brief an Lienhart und Agnes Ortenberg
Creators: name: Ortenberg, Friedlin
Publisher: name: [s.n.]
Year: 1450

description: von Friedlin Ortenberg
description: Deutsch
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Gauge Mediation in String Theory
Creators: name: Kawano, Teruhiko
name: Ooguri, Hirosi
name: Ookouchi, Yutaka
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that a large class of phenomenologically viable models for gauge mediation of supersymmetry breaking based on meta-stable vacua can be realized in local Calabi-Yau compactifications of string theory.
description: 7 pages, 1 figure, harvmac. v2: references added and typos corrected
Brief an Bruno Amerbach
Creators: name: Amerbach, Johannes
Publisher: name: [s.n.]
Year: 1504

description: von Johannes Amerbach
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 225
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Brief an Barbara Amerbach
Creators: name: Rechberger-Amerbach, Margaretha
Publisher: name: [s.n.]
Year: 1502

description: von Margaretha Amerbach
description: Deutsch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 180
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Topological full groups of ultragraph groupoids as an isomorphism invariant
Creators: name: Castro, Gilles Gonçalves de
name: Gonçalves, Daniel
name: van Wyk, Daniel W.
Publisher: name: Mathematisches Institut (Universität Münster)
Year: 2021
Subjects: subject: 510 Mathematics

description: We prove two isomorphism-invariance theorems for groupoids associated with ultragraphs. These theorems characterize ultragraphs for which the topological full group of an associated groupoid is an isomorphism invariant. These results extend those of graph groupoids to ultragraph groupoids while providing another concrete example where the topological full group of a groupoid is a complete isomorphism invariant.
Reduction formalism for Dirac fermions on de Sitter spacetime
Creators: name: Crucean, Cosmin
name: Racoceanu, Radu
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The reduction formulas for Dirac fermions are derived, using the exact solutions of free Dirac equation on de Sitter spacetime. In the framework of the perturbation theory one studies the Green functions and derive the scatering amplitude in the first orders of perturbation theory.
description: 12 pages, no figures
Hard x-ray photoemission study on strain effect in LaNiO$_3$ thin films
Creators: name: Yamagami, K.
name: Ikeda, K.
name: Hariki, A.
name: Zhang, Y.
name: Yasui, A.
name: Takagi, Y.
name: Hotta, Y.
name: Katase, T.
name: Kamiya, T.
name: Wadati, H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The strain effect from a substrate is an important experimental route to control electronic and magnetic properties in transition-metal oxide (TMO) thin films. Using hard x-ray photoemission spectroscopy, we investigate the strain dependence of the valence states in LaNiO$_{3}$ thin films, strongly correlated perovskite TMO, grown on four substrates: LaAlO$_{3}$, (LaAlO$_{3}$)$_{0.3}$(SrAl$_{0.5}$Ta$_{0.5}$O$_{3}$)$_{0.7}$, SrTiO$_{3}$, and DyScO$_{3}$. A Madelung potential analysis of core-level spectra suggests that the point-charge description is valid for the La ions while it breaks down for Ni and O ions due to a strong covalent bonding between the two. A clear x-ray photon-energy dependence of the valence spectra is analyzed by the density functional theory, which points to a presence of the La 5$p$ state near the Fermi level.
description: 6 pages, 4 figures, and 2 tables
Treatment-related changes in serum neutrophil gelatinase-associated lipocalin (NGAL) in psoriatic arthritis: results from the PIPA cohort study
Creators: name: Stisen, ZR
name: Nielsen, SM
name: Ditlev, SB
name: Skougaard, M
name: Egeberg, A
name: Mogensen, M
name: Jørgensen, TS
name: Dreyer, L
name: Christensen, R
name: Kristensen, LE
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health
subject: Computational Biology

description: Obesity and psoriatic arthritis (PsA) have a complicated relationship. While weight alone does not cause PsA, it is suspected to cause worse symptoms. Neutrophil gelatinase-associated lipocalin (NGAL) is secreted through various cell types. Our objective was to assess the changes and trajectories in serum NGAL and clinical outcomes in patients with PsA during 12 months of anti-inflammatory treatment. This exploratory prospective cohort study enrolled PsA patients initiating conventional synthetic or biological disease-modifying anti-rheumatic drugs (csDMARDs/bDMARDs). Clinical, biomarker, and patient-reported outcome measures were retrieved at baseline, and 4 and 12 months. Control groups at baseline were psoriasis (PsO) patients and apparently healthy controls. The serum NGAL concentration was quantified by a high-performance singleplex immunoassay. In total, 117 PsA patients started a csDMARD or bDMARD, and were compared indirectly at baseline with a cross-sectional sample of 20 PsO patients and 20 healthy controls. The trajectory in NGAL related to anti-inflammatory treatment for all included PsA patients showed an overall change of −11% from baseline to 12 months. Trajectories in NGAL for patients with PsA, divided into treatment groups, showed no clear trend in clinically significant decrease or increase following anti-inflammatory treatment. NGAL concentrations in the PsA group at baseline corresponded to the levels in the control groups. No correlation was found between changes in NGAL and changes in PsA outcomes. Based on these results, serum NGAL does not add any value as a biomarker in patients with peripheral PsA, either for disease activity or for monitoring.
Higher harmonics increase LISA's mass reach for supermassive black holes
Creators: name: Arun, K. G.
name: Iyer, Bala R.
name: Sathyaprakash, B. S.
name: Sinha, Siddhartha
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Current expectations on the signal to noise ratios and masses of supermassive black holes which the Laser Interferometer Space Antenna (LISA) can observe are based on using in matched filtering only the dominant harmonic of the inspiral waveform at twice the orbital frequency. Other harmonics will affect the signal-to-noise ratio of systems currently believed to be observable by LISA. More significantly, inclusion of other harmonics in our matched filters would mean that more massive systems that were previously thought to be {\it not} visible in LISA should be detectable with reasonable SNRs. Our estimates show that we should be able to significantly increase the mass reach of LISA and observe the more commonly occurring supermassive black holes of masses $\sim 10^8M_\odot.$ More specifically, with the inclusion of all known harmonics LISA will be able to observe even supermassive black hole coalescences with total mass $\sim 10^8 M_\odot (10^9M_\odot)$ (and mass-ratio 0.1) for a low frequency cut-off of $10^{-4}{\rm Hz}$ $(10^{-5}{\rm Hz})$ with an SNR up to $\sim 60$ $(\sim 30)$ at a distance of 3 Gpc. This is important from the astrophysical viewpoint since observational evidence for the existence of black holes in this mass range is quite strong and binaries containing such supermassive black holes will be inaccessible to LISA if one uses as detection templates only the dominant harmonic.
description: minor corrections made
Can dark energy be dynamical?
Creators: name: Colgáin, Eoin Ó
name: Sheikh-Jabbari, M. M.
name: Yin, Lu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We highlight shortcomings of the dynamical dark energy (DDE) paradigm. For parametric models with equation of state (EOS), $w(z) = w_0 + w_a f(z)$ for a given function of redshift $f(z)$, we show that the errors in $w_a$ are sensitive to $f(z)$: if $f(z)$ increases quickly with redshift $z$, then errors in $w_a$ are smaller, and vice versa. As a result, parametric DDE models suffer from a degree of arbitrariness and focusing too much on one model runs the risk that DDE may be overlooked. In particular, we show the ubiquitous Chevallier-Polarski-Linder model is one of the least sensitive to DDE. We also comment on ``wiggles" in $w(z)$ uncovered in non-parametric reconstructions. Concretely, we isolate the most relevant Fourier modes in the wiggles, model them and fit them back to the original data to confirm the wiggles at $\lesssim2σ$. We delve into the assumptions going into the reconstruction and argue that the assumed correlations, which clearly influence the wiggles, place strong constraints on field theory models of DDE.
description: 11 pages, comments welcome, in particular sightings in the literature of the wa errors varying across DDE models in line with the outlined trend; v2, plot & comments added, accepted to PRD
Brief an Basilius [I] Amerbach
Creators: name: Amerbach, Bonifacius
Publisher: name: [s.n.]
Year: 1522

description: von Bonifacius Amerbach
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. II. Band. - Basel : Verl. der Universitätsbibliothek, 1943, Nr. 882
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Twist-4 Distribution Amplitudes of the K$^*$ and $ϕ$ Mesons in QCD
Creators: name: Ball, Patricia
name: Braun, V. M.
name: Lenz, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a systematic study of twist-4 light-cone distribution amplitudes of the $K^*$ and $ϕ$ meson in QCD. The structure of SU(3)-breaking corrections is studied in detail. Non-perturbative input parameters are estimated from QCD sum rules and a renormalon based model. As a by-product, we give a complete reanalysis of the parameters of the twist-4 $ρ$-meson distribution amplitudes.
description: 41 pages, 15 figures
Psoriatic arthritis: improvement in outcomes but persistent sex difference – 5-year follow-up study of a Norwegian outpatient clinic population
Creators: name: Łosińska, K
name: Michelsen, B
name: Kavanaugh, A
name: Korkosz, M
name: Haugeberg, G
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: This study aimed to explore long-term changes in disease activity and remission rates, and potential sex-related differences in these outcomes, in psoriatic arthritis (PsA) patients treated in an outpatient clinic. This prospective longitudinal cohort study included 114 patients. The Disease Activity Index for Psoriatic Arthritis (DAPSA), clinical DAPSA (cDAPSA), 28-joint Disease Activity Score (DAS28), Simplified and Clinical Disease Activity Indices (SDAI, CDAI), Boolean remission for PsA, and minimal and very low disease activities (MDA, VLDA) were assessed. For group characteristics, parametric statistics and linear regression were used. At 5 year follow-up, improvement was noted for multiple measures reflecting disease activity and patient-reported outcomes. Statistically significant increases in remission rates were observed using DAS28 (+21.2%), CDAI (+9.7%), and cDAPSA (+7.6%), but not SDAI, DAPSA, Boolean remission, MDA, or VLDA. During the study period, the proportion of patients treated with biological disease-modifying anti-rheumatic drugs (bDMARDs) increased from 37.7% to 48.3% (p = 0.007). At baseline, women reported higher pain and fatigue, and had higher tender joint counts, DAPSA, cDAPSA, SDAI, CDAI, and DAS28 than men. Despite higher mean baseline C-reactive protein, men more often achieved remission, regardless of the definition applied. A higher proportion of men than women was treated with bDMARDs (baseline: 46.6% vs 28.6%; follow-up: 58.6% vs 33.9%). This study adds evidence supporting recent improvements in PsA outcomes. Women had higher disease activity and were less likely to achieve remission than men. Despite progress in achieving remission goals, there is still room for improvement in therapeutic approaches for PsA patients.
Matched-filtering and parameter estimation of ringdown waveforms
Creators: name: Berti, Emanuele
name: Cardoso, Jaime
name: Cardoso, Vitor
name: Cavaglia, Marco
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using recent results from numerical relativity simulations of non-spinning binary black hole mergers we revisit the problem of detecting ringdown waveforms and of estimating the source parameters, considering both LISA and Earth-based interferometers. We find that Advanced LIGO and EGO could detect intermediate-mass black holes of mass up to about 1000 solar masses out to a luminosity distance of a few Gpc. For typical multipolar energy distributions, we show that the single-mode ringdown templates presently used for ringdown searches in the LIGO data stream can produce a significant event loss (> 10% for all detectors in a large interval of black hole masses) and very large parameter estimation errors on the black hole's mass and spin. We estimate that more than 10^6 templates would be needed for a single-stage multi-mode search. Therefore, we recommend a "two stage" search to save on computational costs: single-mode templates can be used for detection, but multi-mode templates or Prony methods should be used to estimate parameters once a detection has been made. We update estimates of the critical signal-to-noise ratio required to test the hypothesis that two or more modes are present in the signal and to resolve their frequencies, showing that second-generation Earth-based detectors and LISA have the potential to perform no-hair tests.
description: 19 pages, 9 figures, matches version in press in PRD
To cool is to keep: Residual H/He atmospheres of super-Earths and sub-Neptunes
Creators: name: Misener, William
name: Schlichting, Hilke E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Super-Earths and sub-Neptunes are commonly thought to have accreted hydrogen/helium envelopes, consisting of a few to ten percent of their total mass, from the primordial gas disk. Subsequently, hydrodynamic escape driven by core-powered mass-loss and/or photo-evaporation likely stripped much of these primordial envelopes from the lower-mass and closer-in planets to form the super-Earth population. In this work we show that after undergoing core-powered mass-loss, some super-Earths can retain small residual H/He envelopes. This retention is possible because, for significantly depleted atmospheres, the density at the radiative-convective boundary drops sufficiently such that thhe cooling time-scale becomes less than the mass-loss time-scale. The residual envelope is therefore able to contract, terminating further mass loss. Using analytic calculations and numerical simulations, we show that the mass of primordial H/He envelope retained as a fraction of the planet's total mass, $f_{ret}$, increases with increasing planet mass, $M_{c}$, and decreases with increasing equilibrium temperature, $T_{eq}$, scaling as $f_{ret} \propto M_{c}^{3/2} T_{eq}^{-1/2} \exp{[M_{c}^{3/4} T_{eq}^{-1}]}$. $f_{ret}$ varies from $< 10^{-8}$ to about $10^{-3}$ for typical super-Earth parameters. To first order, the exact amount of left-over H/He depends on the initial envelope mass, the planet mass, its equilibrium temperature, and the envelope's opacity. These residual hydrogen envelopes reduce the atmosphere's mean molecular weight compared to a purely secondary atmosphere, a signature observable by current and future facilities. These remnant atmospheres may, however, in many cases be vulnerable to long-term erosion by photo-evaporation. Any residual hydrogen envelope likely plays an important role in the long-term physical evolution of super-Earths, including their geology and geochemistry.
description: 17 pages, 11 figures. Resubmitted to MNRAS after revision
European Core Technologies for Next Generation Communication-Computing Hardware
Creators: name: AUSTRALO
Publisher: name: Zenodo
Year: 2024

description: The COREnext project, funded by the European Union’s Horizon Europe Research and Innovation programme, is at the forefront of developing a trustworthy-by-design platform. This initiative is poised to meet the urgent need for European capabilities in B5G/6G computing, leveraging a novel architecture for base stations.

It represents a significant leap forward in ensuring the security and reliability of our digital infrastructure. By focusing on trustworthiness from the ground up, this initiative is not only addressing the current challenges posed by the rapid advancement of technology, but also laying the foundation for a secure and sustainable digital future.

As part of our commitment to transparency and engagement with the public, we have prepared a detailed press release that provides further insights into the COREnext project, its objectives, and the expected impact on Europe's digital landscape.
Multi-Contrast MRI Super-Resolution via a Multi-Stage Integration Network
Creators: name: Feng, Chun-Mei
name: Fu, Huazhu
name: Yuan, Shuhao
name: Xu, Yong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Super-resolution (SR) plays a crucial role in improving the image quality of magnetic resonance imaging (MRI). MRI produces multi-contrast images and can provide a clear display of soft tissues. However, current super-resolution methods only employ a single contrast, or use a simple multi-contrast fusion mechanism, ignoring the rich relations among different contrasts, which are valuable for improving SR. In this work, we propose a multi-stage integration network (i.e., MINet) for multi-contrast MRI SR, which explicitly models the dependencies between multi-contrast images at different stages to guide image SR. In particular, our MINet first learns a hierarchical feature representation from multiple convolutional stages for each of different-contrast image. Subsequently, we introduce a multi-stage integration module to mine the comprehensive relations between the representations of the multi-contrast images. Specifically, the module matches each representation with all other features, which are integrated in terms of their similarities to obtain an enriched representation. Extensive experiments on fastMRI and real-world clinical datasets demonstrate that 1) our MINet outperforms state-of-the-art multi-contrast SR methods in terms of various metrics and 2) our multi-stage integration module is able to excavate complex interactions among multi-contrast features at different stages, leading to improved target-image quality.
description: 10 pages, 3 figures
Cahiers de lexicologie. 1971-2, n° 19
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2012
Subjects: subject: Lexique
subject: Lexicographie
subject: Sémantique
subject: Traduction
subject: Linguistique historique

description: Les Cahiers de lexicologie, revue internationale de lexicologie et de lexicographie, s'intéressent au lexique dans ses relations avec les autres composantes de la langue (syntaxe, sémantique, morphologie, phonologie, discours…), tant du point de vue théorique que de leurs applications, notamment pour ce qui concerne le traitement informatique de la langue.
description: The Cahiers de lexicologie, international review of lexicology and lexicography, studies vocabulary in its relation to other aspects of language (syntax, semantics, morphology, phonology, speech...), both from a theoretical point of view and in practical applications, notably concerning computer treatment of language.
Eigenfunctions of transfer operators and cohomology
Creators: name: Bruggeman, R. W.
name: Muehlenbruch, T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C30; 37D40; 11F67

description: The eigenfunctions with eigenvalues 1 or -1 of the transfer operator of Mayer are in bijective correspondence with the eigenfunctions with eigenvalue 1 of a transfer operator connected to the nearest integer continued fraction algorithm. This is shown by relating these eigenspaces of these operators to cohomology groups for the modular group with coefficients in certain principal series representations.
A Perceptual Model for Eccentricity-dependent Spatio-temporal Flicker Fusion and its Applications to Foveated Graphics
Creators: name: Krajancich, Brooke
name: Kellnhofer, Petr
name: Wetzstein, Gordon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Graphics (cs.GR)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Virtual and augmented reality (VR/AR) displays strive to provide a resolution, framerate and field of view that matches the perceptual capabilities of the human visual system, all while constrained by limited compute budgets and transmission bandwidths of wearable computing systems. Foveated graphics techniques have emerged that could achieve these goals by exploiting the falloff of spatial acuity in the periphery of the visual field. However, considerably less attention has been given to temporal aspects of human vision, which also vary across the retina. This is in part due to limitations of current eccentricity-dependent models of the visual system. We introduce a new model, experimentally measuring and computationally fitting eccentricity-dependent critical flicker fusion thresholds jointly for both space and time. In this way, our model is unique in enabling the prediction of temporal information that is imperceptible for a certain spatial frequency, eccentricity, and range of luminance levels. We validate our model with an image quality user study, and use it to predict potential bandwidth savings 7x higher than those afforded by current spatial-only foveated models. As such, this work forms the enabling foundation for new temporally foveated graphics techniques.
Representative Ensembles in Statistical Mechanics
Creators: name: Yukalov, V. I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The notion of representative statistical ensembles, correctly representing statistical systems, is strictly formulated. This notion allows for a proper description of statistical systems, avoiding inconsistencies in theory. As an illustration, a Bose-condensed system is considered. It is shown that a self-consistent treatment of the latter, using a representative ensemble, always yields a conserving and gapless theory.
description: Latex file, 18 pages
Bouncing Universe with Quintom Matter
Creators: name: Cai, Yi-Fu
name: Qiu, Taotao
name: Piao, Yun-Song
name: Li, Mingzhe
name: Zhang, Xinmin
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The bouncing universe provides a possible solution to the Big Bang singularity problem. In this paper we study the bouncing solution in the universe dominated by the Quintom matter with an equation of state (EoS) crossing the cosmological constant boundary. We will show explicitly the analytical and numerical bouncing solutions in three types of models for the Quintom matter with an phenomenological EoS, the two scalar fields and a scalar field with a modified Born-Infeld action.
description: 7 pages, 5 figures
Cahiers de lexicologie. 1973-1, n° 22
Creators: name: (:Unap)
Publisher: name: Classiques Garnier
Year: 2012
Subjects: subject: Lexique
subject: Lexicographie
subject: Sémantique
subject: Traduction
subject: Linguistique historique

description: Les Cahiers de lexicologie, revue internationale de lexicologie et de lexicographie, s'intéressent au lexique dans ses relations avec les autres composantes de la langue (syntaxe, sémantique, morphologie, phonologie, discours…), tant du point de vue théorique que de leurs applications, notamment pour ce qui concerne le traitement informatique de la langue.
description: The Cahiers de lexicologie, international review of lexicology and lexicography, studies vocabulary in its relation to other aspects of language (syntax, semantics, morphology, phonology, speech...), both from a theoretical point of view and in practical applications, notably concerning computer treatment of language.
Tightest bound on hidden entropy production from partially observed dynamics
Creators: name: Ehrich, Jannik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Stochastic thermodynamics allows us to define heat and work for microscopic systems far from thermodynamic equilibrium, based on observations of their stochastic dynamics. However, a complete account of the energetics necessitates that all relevant nonequilibrium degrees of freedom are resolved, which is not feasible in many experimental situations. A simple approach is to map the visible dynamics onto a Markov model, which produces a lower-bound estimate of the entropy production. The bound, however, can be quite loose, especially when the visible dynamics only have small or vanishing observable currents. An alternative approach is presented that uses all observable data to find an underlying hidden Markov model responsible for generating the observed non-Markovian dynamics. For masked Markovian kinetic networks, one obtains the tightest possible lower bound on entropy production of the full dynamics that is compatible with the observable data. The formalism is illustrated with a simple example system.
description: 22 pages, 10 figures
Brief an Basilius [I] Amerbach
Creators: name: Amerbach, Bonifacius
Publisher: name: [s.n.]
Year: 1522

description: von Bonifacius [Amerbach]
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. II. Band. - Basel : Verl. der Universitätsbibliothek, 1943, Nr. 899
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Brief an Bruno Amerbach
Creators: name: Amerbach, Johannes
Publisher: name: [s.n.]
Year: 1507

description: von Johannes von Amerbach
description: Lateinisch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 353
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Characterization of high-temperature PbTe p-n junctions prepared by thermal diffusion and by ion-implantation
Creators: name: Butenko, A. V.
name: Kahatabi, R.
name: Mogilko, E.
name: Strul, R.
name: Sandomirsky, V.
name: Schlesinger, Y.
name: Dashevsky, Z.
name: Kasiyan, V.
name: Genikhov, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We describe here the characteristics of two types of high-quality PbTe p-n-junctions, prepared in this work: (1) by thermal diffusion of In4Te3 gas (TDJ), and (2) by ion implantation (implanted junction, IJ) of In (In-IJ) and Zn (Zn-IJ). The results, as presented here, demonstrate the high quality of these PbTe diodes. Capacitance-voltage and current-voltage characteristics have been measured. The measurements were carried out over a temperature range from ~ 10 K to ~ 180 K. The latter was the highest temperature, where the diode still demonstrated rectifying properties. This maximum operating temperature is higher than any of the earlier reported results. The saturation current density, J0, in both diode types, was ~ 10^-5 A/cm2 at 80 K, while at 180 K J0 ~ 10^-1 A/cm2 in TDJ and ~ 1 A/cm2 in both ion-implanted junctions. At 80 K the reverse current started to increase markedly at a bias of ~ 400 mV for TDJ, and at ~550 mV for IJ. The ideality factor n was about 1.5-2 for both diode types at 80 K. The analysis of the C-V plots shows that the junctions in both diode types are linearly graded. The analysis of the C-V plots allows also determining the height of the junction barrier, the concentrations and the concentration gradient of the impurities, and the temperature dependence of the static dielectric constant. The zero-bias-resistance x area products (R0Ae) at 80 K are: 850 OHMcm2 for TDJ, 250 OHMcm2 for In-IJ, and ~ 80 OHMcm2 for Zn-IJ, while at 180 K R0Ae ~ 0.38 OHMcm2 for TDJ, and ~ 0.1 OHMcm2 for IJ. The estimated detectivity is: D* ~ 10^10 cmHz^(1/2)/W up to T=140 K, determined mainly by background radiation, while at T=180 K, D* decreases to 108-107 cmHz^(1/2)/W, and is determined by the Johnson noise.
title: Here and There
Creators: name: Reed, Warren D. M.
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2005

description: HERE AND THERE is a collection of short stories bringing both outré burlesque comedy and tragic moments from the human drama under one heading. I believe, as Victor Hugo pointed out in his Preface de Cromwell, that comedy and tragedy are intrinsic elements of human life and therefore ought to be represented together. The first section is mostly comedy, and explores the ironic grotesqueries of life in the West. The concluding section, whose stories are set in Francophone Africa, examines in a more serious tone conflicts arising directly and indirectly from contact with the West.
Simplifying additivity problems using direct sum constructions
Creators: name: Fukuda, Motohisa
name: Wolf, Michael M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the additivity problems for the classical capacity of quantum channels, the minimal output entropy and its convex closure. We show for each of them that additivity for arbitrary pairs of channels holds iff it holds for arbitrary equal pairs, which in turn can be taken to be unital. In a similar sense, weak additivity is shown to imply strong additivity for any convex entanglement monotone. The implications are obtained by considering direct sums of channels (or states) for which we show how to obtain several information theoretic quantities from their values on the summands. This provides a simple and general tool for lifting additivity results.
description: 5 pages
Generic energy formalism for reciprocal quadruplets within the two-sublattice quasichemical model
Creators: name: Wang, Kun
name: Chartrand, Patrice
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ever-increasing interests to more accurate thermodynamic predictions of phase diagrams motivate more reliable thermodynamic models to be developed. The Modified Quasichemical Model within the two-sublattice Quadruplet Approximation (MQMQA) was thus established in well response to these interests and motivations. However, the model still needs to be further improved in order to have better thermodynamic predictions of arbitrary reciprocal solutions. The present paper proposes a new and generic formalism to characterize the Gibbs energy of the ternary reciprocal quadruplet within the framework of the MQMQA. The new formalism circumvents the problem spawned from solving the singular matrix of mass equations. Resultantly, energy landscapes of reciprocal solutions can be better defined everywhere in reciprocal composition spaces. With the current improvement, the MQMQA is believed to be one of the most reliable thermodynamic models for various types of solutions with or without short-range ordering.
description: 28 pages, 5 figures
Brief an Barbara Amerbach
Creators: name: Amerbach, Bonifacius
Publisher: name: [s.n.]
Year: 1508

description: von [Bonifacius Amerbach]
description: Deutsch
description: Druck: Die Amerbachkorrespondenz / bearb. und hrsg. von Alfred Hartmann. I. Band. - Basel : Verl. der Universitätsbibliothek, 1942, Nr. 384
description: Verzeichnung=Description=Inventaire August 2012 Vollständige Rekatalogisierung nach Standortverzeichnis G II 1 - G II 33 und Briefkatalog
Bottom-up Markup Fluctuations
Creators: name: Burstein, A.
name: Carvalho, V. M.
name: Grassi, B.
Publisher: name: Faculty of Economics, University of Cambridge
Year: 2020
Subjects: Markup Cyclicality
Oligopolistic Competition
Firm Dynamics
Granularity
Aggregate Fluctuations

description: We study markup cyclicality in a granular macroeconomic model with oligopolistic competition. We characterize the comovement of firm, sectoral, and economy-wide markups with sectoral and aggregate output following firm-level shocks. We then quantify the model’s ability to reproduce salient features of the cyclical properties of markups in French administrative firm-level data, from the bottom (firm) level to the aggregate level. Our model helps rationalize various, seemingly conflicting, measures of markup cyclicality in the French data.
Modulational instability in nonlocal Kerr-type media with random parameters
Creators: name: Doktorov, E. V.
name: Molchan, M. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Modulational instability of continuous waves in nonlocal focusing and defocusing Kerr media with stochastically varying diffraction (dispersion) and nonlinearity coefficients is studied both analytically and numerically. It is shown that nonlocality with the sign-definite Fourier images of the medium response functions suppresses considerably the growth rate peak and bandwidth of instability caused by stochasticity. Contrary, nonlocality can enhance modulational instability growth for a response function with negative-sign bands.
description: 6 pages, 12 figures, revTeX, to appear in Phys. Rev. A
Temperature and Distance Dependence of Tidal Circularization in Close Binaries: A Catalog of Eclipsing Binaries in the Southern Hemisphere Observed by the TESS Satellite
Creators: name: Justesen, Anders B.
name: Albrecht, Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Tidal forces are important for understanding how close binary stars and compact exoplanetary systems form and evolve. However, tides are difficult to model and significant uncertainties exist about the strength of tides. Here, we investigate tidal circularization in close binaries using a large sample of well-characterised eclipsing systems. We searched TESS photometry from the southern hemisphere for eclipsing binaries. We derive best-fit orbital and stellar parameters by jointly modelling light curves and spectral energy distributions. To determine the eccentricity distribution of eclipsing binaries over a wide range of stellar temperatures ($3\,000-50\,000\,$K) and orbital separations $a/R_1$ ($2-300$), we combine our newly obtained TESS sample with eclipsing binaries observed from the ground and by the Kepler mission. We find a clear dependency of stellar temperature and orbital separation in the eccentricities of close binaries. We compare our observations with predictions of the equilibrium and dynamical tides. We find that while cool binaries agree with the predictions of the equilibrium tide, a large fraction of binaries with temperatures between $6\,250\,$K and $10\,000\,$K and orbital separations between $a/R_1 \sim 4$ and $10$ are found on circular orbits contrary to the predictions of the dynamical tide. This suggests that some binaries with radiative envelopes may be tidally circularised significantly more efficiently than usually assumed. Our findings on orbital circularization have important implications also in the context of hot Jupiters where tides have been invoked to explain the observed difference in the spin-orbit alignment between hot and cool host stars.
description: 20 pages, 11 figures, 4 tables. Accepted for publication in ApJ
SUBARU HDS Observations of a Balmer-Dominated Shock in Tycho's Supernova Remnant
Creators: name: Lee, Jae-Joon
name: Koo, Bon-Chul
name: Raymond, John
name: Ghavamian, Parviz
name: Pyo, Tae-Soo
name: jitsu, Akito Ta
name: Hayashi, Masahiko
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an Ha spectral observation of a Balmer-dominated shock on the eastern side of Tycho's supernova remnant using the Subaru Telescope. Utilizing the High Dispersion Spectrograph (HDS), we measure the spatial variation of the line profile between preshock and postshock gas. Our observation clearly shows a broadening and centroid shift of the narrow-component postshock Ha line relative to the Ha emission from the preshock gas. The observation supports the existence of a thin precursor where gas is heated and accelerated ahead of the shock. Furthermore, the spatial profile of the emission ahead of the Balmer filament shows a gradual gradient in the Ha intensity and line width ahead of the shock. We propose that this region (~10^16 cm) is likely to be the spatially resolved precursor. The line width increases from ~30 up to ~45 km/s, and its central velocity shows a redshift of ~5 km/s across the shock front. The characteristics of the precursor are consistent with a cosmic-ray precursor, although the possibility of a fast neutral precursor is not ruled out.
description: 4 pages, 3 figures, The paper will be published in the April 20, 2007 issue of the Astrophysical Journal, 659, L133
Increased peripheral lipid clearance in an animal model of amyotrophic lateral sclerosis
Creators: name: Fergani, A.
name: Oudart, H.
name: De Aguilar, J. -L. Gonzalez
name: Fricker, B.
name: René, F.
name: Hocquette, J. -F.
name: Meininger, V.
name: Dupuis, L.
name: Loeffler, J. -P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Amyotrophic lateral sclerosis (ALS) is the most common adult motor neuron disease, causing motor neuron degeneration, muscle atrophy, paralysis, and death. Despite this degenerative process, a stable hypermetabolic state has been observed in a large subset of patients. Mice expressing a mutant form of Cu/Zn-superoxide dismutase (mSOD1 mice) constitute an animal model of ALS that, like patients, exhibits unexpectedly increased energy expenditure. Counterbalancing for this increase with a high-fat diet extends lifespan and prevents motor neuron loss. Here, we investigated whether lipid metabolism is defective in this animal model. Hepatic lipid metabolism was roughly normal, whereas gastrointestinal absorption of lipids as well as peripheral clearance of triglyceride-rich lipoproteins were markedly increased, leading to decreased postprandial lipidemia. This defect was corrected by the high-fat regimen that typically induces neuroprotection in these animals. Together, our findings show that energy metabolism in mSOD1 mice shifts toward an increase in the peripheral use of lipids. This metabolic shift probably accounts for the protective effect of dietary lipids in this model.
Orbits of tori extended by finite groups and their polynomial hulls: the case of connected complex orbits
Creators: name: Gichev, V. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32E20; 32M15; 32M05

description: Let $V$ be a complex linear space, $G\subset\GL(V)$ be a compact group. We consider the problem of description of polynomial hulls $\wh{Gv}$ for orbits $Gv$, $v\in V$, assuming that the identity component of $G$ is a torus $T$. The paper contains a universal construction for orbits which satisfy the inclusion $Gv\subset T^\bbC v$ and a characterization of pairs $(G,V)$ such that it is true for a generic $v\in V$. The hull of a finite union of $T$-orbits in $T^\bbC v$ can be distinguished in $\clos T^\bbC v$ by a finite collection of inequalities of the type $\abs{z_1}^{s_1}...\abs{z_n}^{s_n}\leq c$. In particular, this is true for $Gv$. If powers in the monomials are independent of $v$, $Gv\subset T^\bbC v$ for a generic $v$, and either the center of $G$ is finite or $T^\bbC$ has an open orbit, then the space $V$ and the group $G$ are products of standard ones; the latter means that $G=S_nT$, where $S_n$ is the group of all permutations of coordinates and $T$ is either $\bbT^n$ or $\SU(n)\cap\bbT^n$, where $\bbT^n$ is the torus of all diagonal matrices in $\rU(n)$. The paper also contains a description of polynomial hulls for orbits of isotropy groups of bounded symmetric domains. This result is already known, but we formulate it in a different form and supply with a shorter proof.
description: 20 pages
Entanglement in bipartite generalized coherent states
Creators: name: Sivakumar, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement in a class of bipartite generalized coherent states is discussed. It is shown that a positive parameter can be associated with the bipartite generalized coherent states so that the states with equal value for the parameter are of equal entanglement. It is shown that the maximum possible entanglement of 1 bit is attained if the positive parameter equals $\sqrt{2}$. The result that the entanglement is one bit when the relative phase between the composing states is $π$ in bipartite coherent states is shown to be true for the class of bipartite generalized coherent states considered.
description: 10 pages, 4 figures; typos corrected and figures redrawn for better clarity