cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Thermostats, chaos and Onsager reciprocity
Creators: name: Gallavotti, Giovanni
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Finite thermostats are studied in the context of nonequilibrium statistical mechanics. Entropy production rate has been identified with the mechanical quantity expressed by the phase space contraction rate and the currents have been linked to its derivatives with respect to the parameters measuring the forcing intensities. In some instances Green-Kubo formulae, hence Onsager reciprocity, have been related to the fluctuation theorem. However, mainly when dissipation takes place at the boundary (as in gases or liquids in contact with thermostats), phase space contraction may be independent on some of the forcing parameters or, even in absence of forcing, phase space contraction may not vanish: then the relation with the fluctuation theorem does not seem to apply. On the other hand phase space contraction can be altered by changing the metric on phase space: here this ambiguity is discussed and employed to show that the relation between the fluctuation theorem and Green-Kubo formulae can be extended and is, by far, more general.
description: 16 pages, 5 figures The replacement corrects one reference and adds an initial paragraph to connect the paper to the special event to which it is dedicated
title: Front Matter, Table of Contents, Preface, Workshop Organization
Creators: name: Cazorla, Francisco J.
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2015
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Workshop Organization

description: Front Matter, Table of Contents, Preface, Workshop Organization
description: OASIcs, Vol. 47, 15th International Workshop on Worst-Case Execution Time Analysis (WCET 2015), pages i-xiv
Harmonic Measure for Percolation and Ising Clusters Including Rare Events
Creators: name: Adams, David A.
name: Sander, Leonard M.
name: Ziff, Robert M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We obtain the harmonic measure of the hulls of critical percolation clusters and Ising-model Fortuin-Kastelyn clusters using a biased random-walk sampling technique which allows us to measure probabilities as small as 10^{-300}. We find the multifractal D(q) spectrum including regions of small and negative q. Our results for external hulls agree with Duplantier's theoretical predictions for D(q) and his exponent -23/24 for the harmonic measure probability distribution. For the complete hull, we find the probability decays with an exponent of -1 for both systems.
description: 4 pages, 5 figures
How can we combat heterogeneous, unfair and disparate data in digital chemistry? Presentation at the ChemSpider Webinar Series
Creators: name: Kanza, Samantha, P.
Publisher: name: Zenodo
Year: 2023
Subjects: elns
FAIR data
digital
digitisation
process recording
research
code
interoperability
findability
accessibility
re-use
re-purpose
replication
reproduce

description: Presentation given by Dr Samantha P. Kanza on behalf of PSDI for the ChemSpider Webinar Series. 

This presentation provided a whirlwind tour into a number of different areas that PSDI are working on:

Understanding the barriers and challenges to digital research.

Process recording, understanding what researchers actually want and how to choose the right tools for you to record your processes in the first place

The considerations needed for producing fully fair data, research and code

The recording of this presentation can be downloaded from here: https://blogs.rsc.org/chemspider/2023/09/22/chemspider-webinars-helping-you-embrace-digital-chemistry-data-with-expert-insights/?doing_wp_cron=1703098428.1333420276641845703125
An Atomic Gravitational Wave Interferometric Sensor (AGIS)
Creators: name: Dimopoulos, Savas
name: Graham, Peter W.
name: Hogan, Jason M.
name: Kasevich, Mark A.
name: Rajendran, Surjeet
Publisher: name: arXiv
Year: 2008
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: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We propose two distinct atom interferometer gravitational wave detectors, one terrestrial and another satellite-based, utilizing the core technology of the Stanford 10 m atom interferometer presently under construction. Each configuration compares two widely separated atom interferometers run using common lasers. The signal scales with the distance between the interferometers, which can be large since only the light travels over this distance, not the atoms. The terrestrial experiment with baseline ~1 km can operate with strain sensitivity ~10^(-19) / Hz^(1/2) in the 1 Hz - 10 Hz band, inaccessible to LIGO, and can detect gravitational waves from solar mass binaries out to megaparsec distances. The satellite experiment with baseline ~1000 km can probe the same frequency spectrum as LISA with comparable strain sensitivity ~10^(-20) / Hz^(1/2). The use of ballistic atoms (instead of mirrors) as inertial test masses improves systematics coming from vibrations, acceleration noise, and significantly reduces spacecraft control requirements. We analyze the backgrounds in this configuration and discuss methods for controlling them to the required levels.
description: 41 pages, 19 figures; v2: revised version as in Phys. Rev. D
IRB Human Subjects Protocol: Health4Kids
Creators: name: Parra-Medina, Deborah
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Latino
urban
family-focused
development
obesity prevention
nutrition
physical activity
mhealth

description: Health4Kids is an obesity management program that uses family counseling, text messages, and newsletters to encourage healthier eating and increased physical activity in overweight and obese Latino children in San Antonio, Texas. Through pediatric clinics at the University Health System, researchers will work with child-parent pairs to test and evaluate the efficacy of intervention strategies including family counseling (in-clinic and phone) and culturally tailored text messages and newsletters. The research team will measure the impact of the program on body composition, insulin, glucose and cholesterol levels, and on health behavior changes like physical activity and fruit and vegetable consumption.
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Henriques, Pedro Rangel
name: Leal, José Paulo
name: Leitão, António Menezes
name: Guinovart, Xavier Gómez
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2018
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization

description: Front Matter, Table of Contents, Preface, Conference Organization
description: OASIcs, Vol. 62, 7th Symposium on Languages, Applications and Technologies (SLATE 2018), pages 0:i-0:xiv
UHE tau neutrino flux regeneration while skimming the Earth
Creators: name: Bigas, Oscar Blanch
name: Deligny, Olivier
name: Payet, Kévin
name: Van Elewyck, Véronique
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The detection of Earth-skimming tau neutrinos has turned into a very promising strategy for the observation of ultra-high energy cosmic neutrinos. The sensitivity of this channel crucially depends on the parameters of the propagation of the tau neutrinos through the terrestrial crust, which governs the flux of emerging tau leptons that can be detected. One of the characteristics of this propagation is the possibility of regeneration through multiple $ν_τ\leftrightarrow τ$ conversions, which are often neglected in the standard picture. In this paper, we solve the transport equations governing the $ν_τ$ propagation and compare the flux of emerging tau leptons obtained allowing regeneration or not. We discuss the validity of the approximation of neglecting the $ν_τ$ regeneration using different scenarios for the neutrino-nucleon cross-sections and the tau energy losses.
description: 8 pages, 8 figures
Absorption features in the spectra of X-ray bursting neutron stars
Creators: name: Rauch, Thomas
name: Suleimanov, Valery
name: Werner, Klaus
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The discovery of photospheric absorption lines in XMM-Newton spectra of the X-ray bursting neutron star in EXO0748-676 by Cottam and collaborators allows us to constrain the neutron star mass-radius ratio from the measured gravitational redshift. A radius of R=9-12km for a plausible mass range of M=1.4-1.8Msun was derived by these authors. It has been claimed that the absorption features stem from gravitationally redshifted (z=0.35) n=2-3 lines of H- and He-like iron. We investigate this identification and search for alternatives. We compute LTE and non-LTE neutron-star model atmospheres and detailed synthetic spectra for a wide range of effective temperatures (effective temperatures of 1 - 20MK) and different chemical compositions. We are unable to confirm the identification of the absorption features in the X-ray spectrum of EXO0748-676 as n=2-3 lines of H- and He-like iron (Fe XXVI and Fe XXV). These are subordinate lines that are predicted by our models to be too weak at any effective temperature. It is more likely that the strongest feature is from the n=2-3 resonance transition in Fe XXIV with a redshift of z=0.24. Adopting this value yields a larger neutron star radius, namely R=12-15km for the mass range M=1.4-1.8Msun, favoring a stiff equation-of-state and excluding mass-radius relations based on exotic matter. Combined with an estimate of the stellar radius R>12.5km from the work of Oezel and collaborators, the z=0.24 value provides a minimum neutron-star mass of M>1.48Msun, instead of M>1.9Msun, when assuming z=0.35.
description: 8 pages, 17 figures
Superparaelectric phase in the ensemble of non-interacting ferroelectric nanoparticles
Creators: name: Glinchuk, M. D.
name: Eliseev, E. A.
name: Morozovska, A. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: For the first time we predict the conditions of superparaelectric phase appearance in the ensemble of non-interacting spherical ferroelectric nanoparticles. The superparaelectricity in nanoparticle was defined by analogy with superparamagnetism, obtained earlier in small nanoparticles made of paramagnetic material. Calculations of correlation radius, energetic barriers of polarization reorientation and polarization response to external electric field, were performed within Landau-Ginzburg phenomenological approach for perovskites Pb(Zr,Ti)O3, BiFeO3 and uniaxial ferroelectrics rochelle salt and triglycine sulfate.
description: 28 pages, 7 figures, 3 Appendices, to be submitted to Phys. Rev. B
Age of Loop for Wireless Networked Control Systems Optimization
Creators: name: Ana, Pedro M. de Sant
name: Marchenko, Nikolaj
name: Popovski, Petar
name: Soret, Beatriz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Joint design of control and communication in Wireless Networked Control Systems (WNCS) is a promising approach for future wireless industrial applications. In this context, Age of Information (AoI) has been increasingly utilized as a metric that is more representative than latency in the context of systems with a sense-compute-actuate cycle. Nevertheless, AoI is commonly defined for a single communication direction, Downlink or Uplink, which does not capture the closed-loop dynamics. In this paper, we extend the concept of AoI by defining a new metric, Age of Loop (AoL), relevant for WNCS closed-loop systems. The AoL is defined as the time elapsed since the piece of information causing the latest action or state (depending on the selected time origin) was generated. We then use the proposed metric to learn the WNCS latency and freshness bounds and we apply such learning methodology to minimize the long term WNCS cost with the least amount of bandwidth. We show that, using the AoL, we can learn the control system requirement and use this information to optimize network resources.
description: 7 pages, 7 Figures, Conference paper submitted to IEEE PIMRC 2021
Optical spectroscopy of X-ray sources in the Taurus molecular cloud: discovery of ten new pre-main sequence stars
Creators: name: Scelsi, L.
name: Sacco, G.
name: Affer, L.
name: Argiroffi, C.
name: Pillitteri, I.
name: Maggio, A.
name: Micela, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have analyzed optical spectra of 25 X-ray sources identified as potential new members of the Taurus molecular cloud (TMC), in order to confirm their membership in this SFR. Fifty-seven candidates were previously selected among the X-ray sources in the XEST survey, having a 2MASS counterpart compatible with a PMS star based on color-magnitude and color-color diagrams. We obtained high-resolution optical spectra for 7 of these candidates with the SARG spectrograph at the TNG telescope, which were used to search for Li absorption and to measure the Ha line and the radial and rotational velocities; 18 low-resolution optical spectra obtained with DOLORES for other candidate members were used for spectral classification, for Ha measurements, and to assess membership together with IR color-color and color-magnitude diagrams and additional information from the X-ray data. We found that 3 sources show Li absorption, with equivalent widths of ~500 mA, broad spectral line profiles, indicating v sin i ~20-40 km/s, radial velocities consistent with those for known members, and Ha emission. Two of them are classified as new WTTSs, while the EW (~ -9 Ang) of the Ha line and its broad asymmetric profile clearly indicate that the third star (XEST-26-062) is a CTTS. Fourteen sources observed with DOLORES are M-type stars. Fifteen sources show Ha emission; 6 of them have spectra that indicate surface gravity lower than in MS stars, and their de-reddened positions in IR color-magnitude diagrams are consistent with their derived spectral type and with PMS models at the distance of the TMC. The K-type star XEST-11-078 is confirmed as a new member from the strength of its Ha emission line. Overall, we confirm membership to the TMC for 10 out of 25 X-ray sources observed in the optical. Three sources remain uncertain.
description: 15 pages, 7 figures, accepted by Astronomy & Astrophysics
Concentration-compactness phenomena in the higher order Liouville's equation
Creators: name: Martinazzi, Luca
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We investigate different concentration-compactness phenomena related to the Q-curvature in arbitrary even dimension. We first treat the case of an open domain in $R^{2m}$, then that of a closed manifold and, finally, the particular case of the sphere $S^{2m}$. In all cases we allow the sign of the Q-curvature to vary, and show that in the case of a closed manifold, contrary to the case of open domains in $R^{2m}$, concentration phenomena can occur only at points of positive Q-curvature. As a consequence, on a locally conformally flat manifold of non-positive Euler characteristic we always have compactness.
description: 26 pages, revised version
An End-to-End Deep Learning Approach for Epileptic Seizure Prediction
Creators: name: Xu, Yankun
name: Yang, Jie
name: Zhao, Shiqi
name: Wu, Hemmings
name: Sawan, Mohamad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: An accurate seizure prediction system enables early warnings before seizure onset of epileptic patients. It is extremely important for drug-refractory patients. Conventional seizure prediction works usually rely on features extracted from Electroencephalography (EEG) recordings and classification algorithms such as regression or support vector machine (SVM) to locate the short time before seizure onset. However, such methods cannot achieve high-accuracy prediction due to information loss of the hand-crafted features and the limited classification ability of regression and SVM algorithms. We propose an end-to-end deep learning solution using a convolutional neural network (CNN) in this paper. One and two dimensional kernels are adopted in the early- and late-stage convolution and max-pooling layers, respectively. The proposed CNN model is evaluated on Kaggle intracranial and CHB-MIT scalp EEG datasets. Overall sensitivity, false prediction rate, and area under receiver operating characteristic curve reaches 93.5%, 0.063/h, 0.981 and 98.8%, 0.074/h, 0.988 on two datasets respectively. Comparison with state-of-the-art works indicates that the proposed model achieves exceeding prediction performance.
description: 5 pages, 4 figures, 4 tables, conference
Relativistic Magnetic Monopole Flux Constraints from RICE
Creators: name: Hogan, D. P.
name: Besson, D. Z.
name: Ralston, J. P.
name: Kravchenko, I.
name: Seckel, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report an upper limit on the flux of relativistic monopoles based on the non-observation of in-ice showers by the Radio Ice Cherenkov Experiment (RICE) at the South Pole. We obtain a 95% C.L. limit of order 10^{-18}/(cm^2-s-sr) for intermediate mass monopoles of 10^7
description: 16 pages, 6 figures. Accepted for publication in Phys. Rev. D. Minor revisions, including expanded discussion of monopole energy uncertainty
Smooth interpolation between thermal Born and LPM rates
Creators: name: Ghiglieri, J.
name: Laine, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In a weakly coupled ultrarelativistic plasma, $1 + n \leftrightarrow 2 + n$ scatterings, with $n \ge 0$, need sometimes to be summed to all orders, in order to determine a leading-order interaction rate. To implement this "LPM resummation", kinematic approximations are invoked. However, in cosmological settings, where the temperature changes by many orders of magnitude and both small and large momenta may play a role, such approximations are not always justified. We suggest a procedure to smoothly interpolate between LPM-resummed $1 + n \leftrightarrow 2 + n$ and Born-level $1 \leftrightarrow 2$ results, rendering the outcome applicable to a broader range of masses and momenta. The procedure is illustrated for right-handed neutrino production from a Standard Model plasma, and dilepton production from a QCD plasma.
description: 25 pages
A Comparison between Nuclear Ring Star Formation in LIRGs and Normal Galaxies with the Very Large Array
Creators: name: Song, Y.
name: Linden, S. T.
name: Evans, A. S.
name: Barcos-Muñoz, L.
name: Privon, G. C.
name: Yoon, I.
name: Murphy, E. J.
name: Larson, K. L.
name: Díaz-Santos, T.
name: Armus, L.
name: Mazzarella, Joseph M.
name: Howell, J.
name: Inami, H.
name: Torres-Albà, N.
name: U, V.
name: Charmandaris, V.
name: Momjian, E.
name: McKinney, J.
name: Kunneriath, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Nuclear rings are excellent laboratories for studying intense star formation. We present results from a study of nuclear star-forming rings in five nearby normal galaxies from the Star Formation in Radio Survey (SFRS) and four local LIRGs from the Great Observatories All-sky LIRG Survey (GOALS) at sub-kpc resolutions using VLA high-frequency radio continuum observations. We find that nuclear ring star formation (NRSF) contributes 49 - 60\% of the total star formation of the LIRGs, compared to 7 - 40\% for the normal galaxies. We characterize a total of 58 individual star-forming regions in these rings, and find that with measured sizes of 10 - 200 pc, NRSF regions in the LIRGs have SFR and $Σ_\mathrm{SFR}$ up to 1.7 M$_\odot$yr$^{-1}$ and 402 M$_\odot$yr$^{-1}$kpc$^{-2}$, respectively, which are about 10 times higher than NRSF regions in the normal galaxies with similar sizes, and comparable to lensed high-$z$ star-forming regions. At $\sim 100 - 300$ pc scales, we estimate low contributions ($< 50\%$) of thermal free-free emission to total radio continuum emission at 33 GHz in the NRSF regions in the LIRGs, but large variations possibly exist at smaller physical scales. Finally, using archival sub-kpc resolution CO (J=1-0) data of nuclear rings in the normal galaxies and NGC 7469 (LIRG), we find a large scatter in gas depletion times at similar molecular gas surface densities, which tentatively points to a multi-modal star formation relation on sub-kpc scales.
description: Accepted for publication in ApJ
Affine algebraic groups with periodic components
Creators: name: Fedotov, S. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14L17

description: A connected component of an affine algebraic group is called periodic if all its elements have finite order. We give a characterization of periodic components in terms of automorphisms with finite number of fixed points. It is also discussed which connected groups have finite extensions with periodic components. The results are applied to the study of the normalizer of a maximal torus in a simple algebraic group.
description: 20 pages
Acción Juvenil con Evidencia: Investigaciones para los Youth Goals
Creators: name: Nieto-Librero, Ana B.
name: González García, Nerea
name: Biderbost, Pablo
Publisher: name: Zenodo
Year: 2025
Subjects: Youth Goals
Políticas juveniles
Análisis multivariante
Participación juvenil

description: Este libro monográfico reúne una selección de investigaciones realizadas por estudiantes de grado en Estadística de la Universidad de Salamanca, en el marco del módulo Jean Monnet Youth Goals Research and Contribution (YGRC). Los trabajos se centran en el análisis de los Youth Goals de la Unión Europea mediante el uso de datos públicos oficiales (Eurostat, OCDE) y técnicas estadísticas multivariantes como ACP, clustering y Biplot. Se abordan temáticas como la igualdad de género, el empleo juvenil, el abandono escolar, la emancipación y el gasto en educación, con el objetivo de evaluar la situación de la juventud europea desde una perspectiva basada en datos. Esta publicación es una contribución académica a la comprensión y mejora de las políticas públicas juveniles europeas.
Exterior Differential Systems for Yang-Mills Theories
Creators: name: Estabrook, Frank B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Exterior differential systems are given, and their Cartan characters calculated, for Maxwell and SU(2)-Yang-Mills equations in dimensions from three to six.
description: This is a contribution to the Special Issue "Elie Cartan and Differential Geometry", published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA
Signatures of superconducting gap inhomogeneities in optical properties
Creators: name: LeBlanc, J. P. F.
name: Nicol, E. J.
name: Carbotte, J. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Scanning tunneling spectroscopy applied to the high-$T_{c}$ cuprates has revealed significant spatial inhomogeneity on the nanoscale. Regions on the order of a coherence length in size show variations of the magnitude of the superconducting gap of order $\pm20%$ or more. An important unresolved question is whether or not these variations are also present in the bulk, and how they influence superconducting properties. As many theories and data analyses for high-$T_{c}$ superconductivity assume spatial homogeneity of the gap magnitude, this is a pressing question. We consider the far-infrared optical conductivity and evaluate, within an effective medium approximation, what signatures of spatial variations in gap magnitude are present in various optical quantities. In addition to the case of d-wave superconductivity, relevant to the high-$T_c$ cuprates, we have also considered s-wave gap symmetry in order to provide expected signatures of inhomogeneities for superconductors in general. While signatures of gap inhomogeneities can be strongly manifested in s-wave superconductors, we find that the far-infrared optical conductivity in d-wave is robust against such inhomogeneity.
description: 8 pages, 7 figures
Current Density Functional Theory for one-dimensional fermions
Creators: name: Dzierzawa, Michael
name: Eckern, Ulrich
name: Schenk, Stefan
name: Schwab, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The frequency-dependent response of a one-dimensional fermion system is investigated using Current Density Functional Theory (CDFT) within the local approximation (LDA). DFT-LDA, and in particular CDFT-LDA, reproduces very well the dispersion of the collective excitations. Unsurprisingly, however, the approximation fails for details of the dynamic response for large wavevectors. In particular, we introduce CDFT for the one-dimensional spinless fermion model with nearest-neighbor interaction, and use CDFT-LDA plus exact (Bethe ansatz) results for the groundstate energy as function of particle density and boundary phase to determine the linear response. The successes and failures of this approach are discussed in detail.
Leveraging a Neural-Symbolic Representation of Biomedical Knowledge to Improve Pediatric Subphenotyping (Slides)
Creators: name: Callahan, Tiffany J
name: Stefanski, AL
name: Hunter, Lawrence E
name: Kahn, Michael G
Publisher: name: Zenodo
Year: 2021
Subjects: Neurosymbolic Learning
Knowledge Graph
Open Biomedical Ontologies
Patient Representational Learning
Graph Representation Learning
Pediatric Rare Disease

description: This entry contains the slides that were presented at the 2019 American Medical Informatics Association Virtual Informatics Summit (https://amia.org/education-events/informatics-summit).
Toward Interoperable Cyberinfrastructure: Common Descriptions for Computational Resources and Applications
Creators: name: Stubbs, Joe
name: Marru, Suresh
name: Mejia, Daniel
name: Katz, Daniel S.
name: Chard, Kyle
name: Dahan, Maytal
name: Pierce, Marlon
name: Zentner, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The user-facing components of the Cyberinfrastructure (CI) ecosystem, science gateways and scientific workflow systems, share a common need of interfacing with physical resources (storage systems and execution environments) to manage data and execute codes (applications). However, there is no uniform, platform-independent way to describe either the resources or the applications. To address this, we propose uniform semantics for describing resources and applications that will be relevant to a diverse set of stakeholders. We sketch a solution to the problem of a common description and catalog of resources: we describe an approach to implementing a resource registry for use by the community and discuss potential approaches to some long-term challenges. We conclude by looking ahead to the application description language.
Precise Wavefront Correction with an Unbalanced Nulling Interferometer for Exo-Planet Imaging Coronagraphs
Creators: name: Nishikawa, J.
name: Abe, L.
name: Murakami, N.
name: Kotani, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Very high dynamical range coronagraphs targeting direct exo-planet detection (10^9 - 10^10 contrast) at small angular separation (few lambda/D units) usually require an input wavefront quality on the order of ten thousandths of wavelength RMS. We propose a novel method based on a pre-optics setup that behaves partly as a low-efficiency coronagraph, and partly as a high-sensitivity wavefront aberration compensator (phase and amplitude). The combination of the two effects results in a highly accurate corrected wavefront. First, an (intensity-) unbalanced nulling interferometer (UNI) performs a rejection of part of the wavefront electric field. Then the recombined output wavefront has its input aberrations magnified. Because of the unbalanced recombination scheme, aberrations can be free of phase singular points (zeros) and can therefore be compensated by a downstream phase and amplitude correction (PAC) adaptive optics system, using two deformable mirrors. In the image plane, the central star's peak intensity and the noise level of its speckled halo are reduced by the UNI-PAC combination: the output-corrected wavefront aberrations can be interpreted as an improved compensation of the initial (eventually already corrected) incident wavefront aberrations. The important conclusion is that not all the elements in the optical setup using UNI-PAC need to reach the lambda/10000 rms surface error quality.
description: Accepted for publication in A&A
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Dal Palu', Alessandro
name: Tarau, Paul
name: Saeedloei, Neda
name: Fodor, Paul
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2018
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization

description: Front Matter, Table of Contents, Preface, Conference Organization
description: OASIcs, Vol. 64, Technical Communications of the 34th International Conference on Logic Programming (ICLP 2018), pages 0:i-0:x
Numerical Investigation of the 2D N=2 Wess-Zumino Model
Creators: name: Wozar, Christian
name: Bergner, Georg
name: Kaestner, Tobias
name: Uhlmann, Sebastian
name: Wipf, Andreas
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study lattice formulations of the two-dimensional N=2 Wess-Zumino model with a cubic superpotential. Discretizations with and without lattice supersymmetries are compared. We observe that the "Nicolai improvement" introduces new problems to simulations of the supersymmetric model. With high statistics we check the degeneracy of bosonic and fermionic masses on the lattice. Perturbative mass corrections to one-loop order are compared with continuum extrapolations of our lattice results in the weakly coupled regime. For intermediate couplings first results of fermionic masses in the continuum are presented where deviations from the perturbative result are observed.
description: 7 pages, 6 figures; talk presented at the XXVI International Symposium on Lattice Field Theory, July 14-19 2008, Williamsburg, Virginia, USA
Dynamic perturbation spreading in networks
Creators: name: Schröder, Malte
name: Zhang, Xiaozhu
name: Wolter, Justine
name: Timme, Marc
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Understanding how local perturbations induce the transient dynamics of a network of coupled units is essential to control and operate such systems. Often a perturbation initiated in one unit spreads to other units whose dynamical state they transiently alter. The maximum state changes at those units and the timings of these changes constitute key characteristics of such transient response dynamics. However, even for linear dynamical systems it is not possible to analytically determine time and amplitude of the maximal response of a unit to a perturbation. Here, we propose to extract approximate peak times and amplitudes from effective expectation values used to characterize the typical time and magnitude of the response of a unit by interpreting the system's response as a probability distribution over time. We derive analytic estimators for the peak response based on these expectation value measures in linearized systems operating close to a stable fixed point. These estimators can be expressed in terms of the inverse of the system's Jacobian. We obtain identical results with different approximations for the response dynamics, indicating that these estimators become exact in the limit of weak coupling. Furthermore, the results suggest that perturbations spread ballistically in networks with diffusive coupling.
description: 15 pages, 7 figures
Concomitant administration of seasonal influenza and COVID-19 mRNA vaccines
Creators: name: Aydillo, Teresa
name: Balsera-Manzanero, Maria
name: Rojo-Fernandez, Amaya
name: Escalera, Alba
name: Salamanca-Rivera, Celia
name: Pachón, Jerónimo
name: Del Mar Muñoz-García, María
name: Sánchez-Cordero, María José
name: Sánchez-Céspedes, Javier
name: García-Sastre, Adolfo
name: Cordero, Elisa
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Current clinical guidelines support the concomitant administration of seasonal influenza vaccines and COVID-19 mRNA boosters vaccine. Whether dual vaccination may impact vaccine immunogenicity due to an interference between influenza or SARS-CoV-2 antigens is unknown. We aimed to understand the impact of mRNA COVID-19 vaccines administered concomitantly on the immune response to influenza vaccines. For this, 128 volunteers were vaccinated during the 22-23 influenza season. Three groups of vaccination were assembled: FLU vaccine only (46, 35%) versus volunteers that received the mRNA bivalent COVID-19 vaccines concomitantly to seasonal influenza vaccines, FluCOVID vaccine in the same arm (42, 33%) or different arm (40, 31%), respectively. Sera and whole blood were obtained the day of vaccination, +7, and +28 days after for antibody and T cells response quantification. As expected, side effects were increased in individuals who received the FluCOVID vaccine as compared to FLU vaccine only based on the known reactogenicity of mRNA vaccines. In general, antibody levels were high at 4 weeks post-vaccination and differences were found only for the H3N2 virus when administered in different arms compared to the other groups at day 28 post-vaccination. Additionally, our data showed that subjects that received the FluCOVID vaccine in different arm tended to have better antibody induction than those receiving FLU vaccines for H3N2 virus in the absence of pre-existing immunity. Furthermore, no notable differences in the influenza-specific cellular immune response were found for any of the vaccination groups. Our data supports the concomitant administration of seasonal influenza and mRNA COVID-19 vaccines.
Will an AI win a chemistry Nobel Prize and replace us? Presentation at the ChemSpider Webinar Series
Creators: name: Coles, Simon. J.
name: Frey, Jeremy. G.
Publisher: name: Zenodo
Year: 2023
Subjects: Artificial Intelligence
AI
Machine Learning
ML
Chemistry
Physical Sciences

description: Presentation given by Professor Simon Coles on behalf of PSDI for the ChemSpider Webinar Series. This presentation looked at the part AI has played up to now in the Physical Sciences, with a look to the future on how things are going to change moving forward.

The recording of this presentation can be downloaded from here: https://blogs.rsc.org/chemspider/2023/09/22/chemspider-webinars-helping-you-embrace-digital-chemistry-data-with-expert-insights/?doing_wp_cron=1703098428.1333420276641845703125
title: [Hijo de estirpe tierna y bravía: ¿De dónde te salen esos versos desgarrados]
Creators: name: Manuel, Vázquez Portal
name: Vázquez Portal, Manuel
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
Year: 2023
Subjects: Prison de Boniato
Poésie

description: Destinataire : Vázquez Huerga, Gabriel
description: Description : Lettre de Vázquez Portal à son fils. L'auteur interroge son fils sur les vers (poème) que celui-ci lui a envoyés et donne sa définition de la poésie. Il évoque et cite quelques vers du poète Miguel Hernández.
description: Notes : Avec son enveloppe. Lettre envoyée depuis la Prison de Boniato, 'Celda n° 9'. Deux cachets de la poste, l'un au recto, l'autre au verso, tous deux illisibles. Adresse figurant sur l'enveloppe : 'Edificio 979 apto 14 – Zona 24. Alamar – Habana del Este – Ciudad de la Habana – Cuba'.
Orbitally-selective Breakdown of the Fermi Liquid and Simultaneous Enhancement of Metallic and Insulating States in Correlated Multi-band Systems with Spin-orbit Coupling
Creators: name: Song, Ze-Yi
name: Jiang, Xiu-Cai
name: Zhang, Yu-Zhong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We show that spin-orbit coupling (SOC) plays Janus-faced roles on the orbitally-selective Mott transitions in a three-orbital Hubbard model with crystal field splitting at a specific filling of $2/3$, which is a minimal Hamiltonian for ruthenates. While the SOC favors metallic state due to enhancement of orbital hybridization at smaller on-site Coulomb repulsions, it stabilizes the Mott insulating state ascribed to lifting of orbital degeneracies and enhancement of band polarizations at larger electronic interaction. Moreover, an orbitally-selective non-Fermi liquid (OSnFL), where breakdown and retention of the Fermi liquid coexist in different orbitals, emerges between the orbitally-selective Mott phase and the Fermi-liquid state. This novel state can be used to account for the exotic metallic behavior observed in 4$d$ materials, such as Ca$_{1.8}$Sr$_{0.2}$RuO$_4$, Ba$_2$RuO$_4$ under strain and Sr$_2$RuO$_4$ under uniaxial pressure. We propose that orbitally-selective Kondo breakdown may account for the OSnFL.
description: 12 pages, 8 figures
First results on RR Lyrae stars with the TESS space telescope: untangling the connections between mode content, colors and distances
Creators: name: Molnár, László
name: Bódi, Attila
name: Pál, András
name: Bhardwaj, Anupam
name: Hambsch, Franz-Josef
name: Benkő, József M.
name: Derekas, Aliz
name: Ebadi, Mohammad
name: Joyce, Meridith
name: Hasanzadeh, Amir
name: Kolenberg, Katrien
name: Lund, Michael B.
name: Nemec, James M.
name: Netzel, Henryka
name: Ngeow, Chow-Choong
name: Pepper, Joshua
name: Plachy, Emese
name: Prudil, Zdeněk
name: Siverd, Robert J.
name: Skarka, Marek
name: Smolec, Radosław
name: Sódor, Ádám
name: Sylla, Salma
name: Szabó, Pál
name: Szabó, Róbert
name: Kjeldsen, Hans
name: Christensen-Dalsgaard, Jørgen
name: Ricker, George R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The TESS space telescope is collecting continuous, high-precision optical photometry of stars throughout the sky, including thousands of RR Lyrae stars. In this paper, we present results for an initial sample of 118 nearby RR Lyrae stars observed in TESS Sectors 1 and 2. We use differential-image photometry to generate light curves and analyse their mode content and modulation properties. We combine accurate light curve parameters from TESS with parallax and color information from the Gaia mission to create a comprehensive classification scheme. We build a clean sample, preserving RR Lyrae stars with unusual light curve shapes, while separating other types of pulsating stars. We find that a large fraction of RR Lyrae stars exhibit various low-amplitude modes, but the distribution of those modes is markedly different from those of the bulge stars. This suggests that differences in physical parameters have an observable effect on the excitation of extra modes, potentially offering a way to uncover the origins of these signals. However, mode identification is hindered by uncertainties when identifying the true pulsation frequencies of the extra modes. We compare mode amplitude ratios in classical double-mode stars to stars with extra modes at low amplitudes and find that they separate into two distinct groups. Finally, we find a high percentage of modulated stars among the fundamental-mode pulsators, but also find that at least 28% of them do not exhibit modulation, confirming that a significant fraction of stars lack the Blazhko effect.
description: 35 pages, 26 figures, and a 19-page appendix. Accepted for publication in ApJS. Light curve data temporarily available: https://konkoly.hu/staff/lmolnar/tess_rrl_firstlight_all_lcs.txt
Differential effects of Gestalt two-chair dialogue and empathic reflection at a split in therapy
Creators: name: Dompierre, Lyse M.
Publisher: name: University of British Columbia
Year: 2010

description: This study examined the differential effects of Gestalt two-chair dialogue and empathic reflection at a split in therapy. Sixteen clients, involved in counselling, were used as subjects in a repeated measure design. Ten counsellors were used, six of whom formed a low-experience therapist group and four of whom formed a high-experience therapist group. The Barrett-Lennard Relationship Inventory (Barrett-Lennard, 1962) was used to measure client perceived empathy after the third session of therapy. Subjects qualified when described on the Sixteen Personality Factor Questionnaire (Cattell, et al., 1970) as not overly conscientious, experimenting and not overly controlled. The process measure, Depth of Experiencing (Klein, et al., 1969) was used as a dependent variable to compare the effects of Gestalt two-chair dialogue and empathic reflection at a split. Five outcome measures were also used as dependent variables: the Target Complaints Box Scale (Battle, et al., 1966), two awareness questions, the Conflict Resolution Box Scale, the Behaviour Change Scale and two progress and change questions. Each client received both treatments before the experimental session, in order to reduce novelty effect. None of the experimental sessions occurred before the fifth therapy session in order to allow for the formation of a working alliance. Half of the clients received empathic reflection in the first experimental session and half received Gestalt two-chair dialogue, to reduce order of presentation effect. The following session was not used for the purposes of this study, in order to increase the independence of the two experimental sessions. Treatments were reversed for the second experimental session. A 2 x 2 (therapist experience by treatment) fully crossed factorial design was used for analysis of the data. Three of the dependent variables were measured more than once, yielding a third repeated measure factor on these variables. The level of statistical significance used was .05. Results showed Gestalt two-chair dialogue to be more effective than empathic reflection at producing peak experiencing levels of five or above, as well as greater shifts of awareness, conflict reduction, behaviour change and reports of change and progress. The two treatment groups did not differ on distress reduction, nor were there any interaction effects between therapist experience level and treatment level.
Analytical theory of forced rotating sheared turbulence. The Parallel case
Creators: name: Leprovost, Nicolas
name: Kim, Eun-Jin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Forced turbulence combined with the effect of rotation and shear flow is studied. In a previous paper [Leprovost and Kim, PRE in press (2008)], we considered the case where the shear and the rotation are perpendicular. Here, we consider the complementary case of parallel rotation and shear, elucidating how rotation and flow shear influence the generation of shear flow (e.g. the direction of energy cascade), turbulence level, transport of particles and momentum. In contrast with the case where rotation and shear are perpendicular, we found that rotation affects turbulence amplitude only for very rapid rotation ($Ω\gg \A$) where it reduces slightly the anisotropy due to shear flow. Also, concerning the transport properties of turbulence, we find that rotation affects only the transport of particle and only for rapid rotation, leading to an almost isotropic transport (whereas, in the case of perpendicular rotation and shear, rotation favors isotropic transport even for slow rotation).
Modeling of chemical processes in the low pressure capacitive RF discharges in a mixture of Ar/C2H2
Creators: name: Ariskin, D. A.
name: Schweigert, I. V.
name: Alexandrov, A. L.
name: Bogaerts, A.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study the properties of a capacitive 13.56 MHz discharge properties with a mixture of Ar/C2H2 taking into account the plasmochemistry and growth of heavy hydrocarbons. A hybrid model was developed to combine the kinetic description for electron motion and the fluid approach for negative and positive ions transport and plasmochemical processes. A significant change of plasma parameters related to injection of 5.8% portion of acetylene in argon was observed and analyzed. We found that the electronegativity of the mixture is about 30%. The densities of negatively and positively charged heavy hydrocarbons are sufficiently large to be precursors for the formation of nanoparticles in the discharge volume.
description: 11 pages, 14 figures
Bulk-boundary correspondence in disordered higher-order topological insulators
Creators: name: Hu, Yu-Song
name: Ding, Yue-Ran
name: Zhang, Jie
name: Zhang, Zhi-Qiang
name: Chen, Chui-Zhen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work, we study the disorder effects on the bulk-boundary correspondence of two-dimensional higher-order topological insulators (HOTIs). We concentrate on two cases: (i) bulk-corner correspondence, (ii) edge-corner correspondence. For the bulk-corner correspondence case, we demonstrate the existence of the mobility gaps and clarify the related topological invariant that characterizes the mobility gap. Furthermore, we find that, while the system preserves the bulk-corner correspondence in the presence of disorder, the corner states are protected by the mobility gap instead of the bulk gap. For the edge-corner correspondence case, we show that the bulk mobility gap and edge band gaps of HOTIs are no longer closed simultaneously. Therefore, a rich phase diagram is obtained, including various disorder-induced phase transition processes. Notably, a disorder-induced transition from the non-trivial to trivial phase is realized, distinguishing the HOTIs from the other topological states. Our results deepen the understanding of bulk-boundary correspondence and enrich the topological phase transitions of disordered HOTIs.
description: 11 pages, 11 figures