cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Double-mode classical Cepheid models - revisited
Creators: name: Smolec, R.
name: Moskalik, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: For many years modeling of double-mode pulsation of classical pulsators was a challenging problem. Inclusion of turbulent convection into pulsation hydrocodes finally led to stable double-mode models. However, it was never analysed, which factor of turbulent convection is crucial. We show that the double-mode behaviour displayed in the computed models results from incorrect assumptions adopted in some of the pulsation hydrocodes, namely from the neglect of buoyant forces in convectively stable layers. This leads to significant turbulent energies and consequently to strong eddy-viscous damping in deep, convectively stable layers of the model. Resulting differential reduction of fundamental and first overtone amplitudes favours the occurrence of double-mode pulsation. Once buoyant forces in convectively stable regions are taken into account (as they should), no stable double-mode behaviour is found. The problem of modeling double-mode behaviour of classical pulsators remains open.
description: 31 pages, 6 figures; accepted for publication in Acta Astronomica
A two-track tour of Cauchy's Cours
Creators: name: Katz, Mikhail G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: History and Overview (math.HO)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 01A55, 26E35, 01A85

description: Cauchy published his Cours d'Analyse 200 years ago. We analyze Cauchy's take on the concepts of rigor, continuity, and limit, and explore a pair of approaches in the literature to the meaning of his infinitesimal analysis and his sum theorem on the convergence of series of continuous functions.
description: 12 pages, to appear in Mathematics Today of the Institute of Mathematics and its Applications
A Fiber Approach to Harmonic Analysis of Unfolded Higher-Spin Field Equations
Creators: name: Iazeolla, Carlo
name: Sundell, Per
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In Vasiliev's unfolded formulation of higher-spin dynamics the standard fields are embedded on-shell into covariantly constant master fields valued in Lorentz-covariant slices of the star-product algebra A of functions on the singleton phase space. Correspondingly, the harmonic expansion is taken over compact slices of A that are unitarizable in a rescaled trace-norm rather than the standard Killing norm. Motivated by the higher-derivative nature of the theory, we examine indecomposable unitarizable Harish-Chandra modules consisting of standard massless particles plus linearized runaway solutions. This extension arises naturally in the above fiber approach upon realizing compact-weight states as non-polynomial analytic functions in A.
description: 80 pages, 2 figures. Minor changes: typos corrected, two footnotes and references added. To be published in JHEP
Pion and Kaon Distribution Amplitudes up to twist-3 in the QCD Instanton Vacuum
Creators: name: Kock, Arthur
name: Zahed, Ismail
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the pion and kaon distribution amplitudes up to twist-3 in the context of the random instanton vacuum (RIV). We construct explicitly the pertinent quasi-pion and quasi-kaon distributions in the RIV, and analyze them in leading order in the diluteness factor, at a resolution fixed by the inverse instanton size. The distribution amplitudes (DA) follow from the large momentum limit. The results at higher resolution are discussed using QCD evolution, and compared to their asymptotic limits and some lattice results.
Searching for Pop III stars and galaxies at high redshift
Creators: name: Schaerer, Daniel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We review the expected properties of Pop III and very metal-poor starburst and the behaviour the Lyman-alpha and HeII 1640 emission lines, which are most likely the best/easiest signatures to single out such objects. Existing claims of Pop III signatures in distant galaxies are critically examined, and the searches for HeII 1640 emission at high redshift are summarised. Finally, we briefly summarise ongoing and future deep observations at z>6 aiming in particular at detecting the sources of cosmic reionisation as well as primeval/Pop III galaxies.
description: 8 pages, invited talk, in "Low-Metallicity Star Formation: From the First Stars to Dwarf Galaxies", IAU Symp. 255, L.K. Hunt, S. Madden & R. Schneider, eds
Additional file 1 of A realist review of factors critical for the implementation of eHealth in chronic disease management
Creators: name: Shahid, Nida
name: Parker, Gillian
name: Bielecki, Joanna M.
name: Rac, Valeria
name: Berta, Whitney
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 1.
A New Unconventional Antiferromagnet, Yb$_3$Pt$_4$
Creators: name: Bennett, M. C.
name: Khalifah, P.
name: Sokolov, D. A.
name: Gannon, W. J.
name: Yiu, Y.
name: Kim, M. S.
name: Henderson, C.
name: Aronson, M. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the synthesis and basic properties of single crystals of a new binary compound, Yb$_{3}$Pt$_{4}$. The Yb ions in this compound are fully trivalent, and heat capacity measurements show that the crystal field scheme involves a doublet ground state, well separated from the excited states, which are fully occupied above $\sim$ 150 K. The heat capacity displays a large, weakly first order anomaly at 2.4 K, where a cusp is observed in the magnetic susceptibility signalling the onset of antiferromagnetic order. The entropy associated with this order is the full Rln2 of the doublet ground state, however the magnetic susceptibility in the ordered phase is dominated by a large and temperature independent component below the Neel temperature. The heat capacity in the ordered state originates with ferromagnetic spin waves, giving evidence for the inherently local moment character of the ordered state. The electrical resistivity is unusually large, and becomes quadratic in temperature exactly at the Neel temperature. The absence of analogous Fermi liquid behavior in the heat capacity and the magnetic susceptibility implies that Yb$_{3}$Pt$_{4}$ is a low electron density system, where the Fermi surface is further gapped by the onset of magnetic order.
description: 8 pages, 9 figures
Evolution of the metallic state of LaNiO$_3$/LaAlO$_3$ superlattices measured by $^8$Li $β$-detected NMR
Creators: name: Karner, V. L.
name: Chatzichristos, A.
name: Cortie, D. L.
name: Fujimoto, D.
name: Kiefl, R. F.
name: Levy, C. D. P.
name: Li, R.
name: McFadden, R. M. L.
name: Morris, G. D.
name: Pearson, M. R.
name: Benckiser, E.
name: Boris, A. V.
name: Cristiani, G.
name: Logvenov, G.
name: Keimer, B.
name: MacFarlane, W. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using ion-implanted $^8$Li $β$-detected NMR, we study the evolution of the correlated metallic state of LaNiO$_3$ in a series of LaNiO$_3$/LaAlO$_3$ superlattices as a function of bilayer thickness. Spin-lattice relaxation measurements in an applied field of 6.55 T reveal two equal amplitude components: one with metallic ($T$-linear) $1/T_{1}$, and a second with a more complex $T$-dependence. The metallic character of the slow relaxing component is only weakly affected by the LaNiO$_3$ thickness, while the fast component is much more sensitive, exhibiting the opposite temperature dependence (increasing towards low $T$) in the thinnest, most magnetic samples. The origin of this bipartite relaxation is discussed.
Additional file 2 of A realist review of factors critical for the implementation of eHealth in chronic disease management
Creators: name: Shahid, Nida
name: Parker, Gillian
name: Bielecki, Joanna M.
name: Rac, Valeria
name: Berta, Whitney
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 2.
The design of a verifiable operating system kernel
Creators: name: Lockhart, Thomas Wayne
Publisher: name: University of British Columbia
Year: 2010

description: The design and implementation of an operating system kernel is described and justified. The kernel implements processes and primitive operations on processes. A variety of operating systems can be implemented by processes executing in the environment the kernel provides. Processes communicate via messages. Several facilities found in other kernels, such as memory management and device handling, are not included. Instead, the kernel provides operations that allow these services to be implemented by processes. The ease of reasoning about (i.e. the verifiability of) both the kernel and the systems it supports is of primary concern. The kernel's verifiability is enhanced because: it has been kept as small as reasonable; all kernel operations are indivisible; the semantics of the kernel operations are simple; and, the kernel does not depend upon any processes for its correct operation. The verifiability of systems the kernel supports is enhanced because they can be modularized such that each module can be verified individually. This is possible because the kernel eliminates many process interdependencies. An implementation of the kernel that supports a multi-process test system lends empirical support to the design. Although a complete operating system has not yet been constructed or verified, the results to date are promising.
title: Frontmatter, Table of Contents, Preface, Conference Organisation
Creators: name: Ravizza, Stefan
name: Holborn, Penny
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2012
Subjects: subject: Frontmatter
subject: Table of Contents
subject: Preface
subject: Conference Organisation

description: Frontmatter, Table of Contents, Preface, Conference Organisation
description: OASIcs, Vol. 22, 3rd Student Conference on Operational Research, pages i-ix
Fermionic vacuum polarization by a composite topological defect in higher-dimensional space-time
Creators: name: de Mello, E. R. Bezerra
name: Saharian, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the vacuum polarization effects associated with a charged massless spin-1/2 field in a higher-dimensional space-time, induced by a composite topological defect. The defect is constituted by a global monopole living on a three-brane and two-dimensional conical space transverse to the latter. In addition, we assume the presence of an extra magnetic flux along the core of the conical space. The heat kernel and the Feynman Green function are presented in the form of a sum of two terms. The first one corresponds to the contribution coming from the bulk with global monopole in the absence of conical structure of the orthogonal two-space, and the second one is induced by this structure and the magnetic flux. We explicitly evaluate the part in the vacuum expectation value of the energy-momentum tensor induced by the flux carrying conical structure. As in pure cosmic string geometries, only the fractional part of the ratio of the magnetic flux to flux quantum leads to non-trivial effects. The vacuum energy-momentum tensor is an even function of this parameter. We show that for strong gravitational fields corresponding to large values of the solid angle deficit, the effects induced by the conical structure and flux are exponentially suppressed.
description: 20 pages, 2 figures
A study on bone cement containing magnesium potassium phosphate for bone repair
Creators: name: Zhixiang Zhang
name: Zaijun Yang
name: Zhenyong Chen
name: Tairan Kang
name: Ding, Xiang
name: Yunxiang Li
name: Yongmei Liao
name: Chunhui Chen
name: Huipin Yuan
name: Hongwei Peng
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Hematology

description: A novel type of bone cement, magnesium potassium phosphate cement (MKPC), was fabricated by mixing 5% phosphoric acid with magnesia, potassium dihydrogen phosphate, sucrose, hydroxyapatite, and sodium tri-polyphosphate powders. The surface morphology and mechanical strength of MKPC were investigated together with tissue responses following implantation into rabbit condylar defects, using commercially available calcium phosphate cement (CPC) as the control. The results showed that MKPC had a higher compressive strength (25.40 ± 0.61 MPa) than CPC (16.45 ± 1.91 Mpa) and did not initiate foreign body reaction, inflammation, or necrosis in vivo. Both cements were resorbed by creeping substitution, in which the resorbed cement was replaced by the newly formed bone. MKPC had a higher resorption rate and enhanced bone regeneration compared to CPC. The data presented here indicate that MKPC could be a potential bone void filler for bio-adhesion in clinical applications.
Momentum deficit in quantum glasses
Creators: name: Andreev, A. F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Using the concept of tunneling two level systems we explain the reduction of rotational inertia of disordered solid 4He observed in the torsional oscillator experiments. The key point is a peculiar quantum phenomenon of momentum deficit for two level systems in moving solids. We show that an unusual state which is essentially different from both normal and superfluid solid states can be realized in quantum glasses. This state is characterized by reduced rotational inertia in oscillator experiments, by absence of a superflow, and by normal behavior in steady rotation.
Identifying the Prevalence of Gender Biases among the Computing Organizations
Creators: name: Sultana, Sayma
name: Cavaletto, London Ariel
name: Bosu, Amiangshu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: We have designed an online survey to understand the status quo of four dimensions of gender biases among the contemporary computing organizations. Our preliminary results found almost one-third of the respondents have reported first-hand experiences of encountering gender biases at their jobs.
Additional file 3 of A realist review of factors critical for the implementation of eHealth in chronic disease management
Creators: name: Shahid, Nida
name: Parker, Gillian
name: Bielecki, Joanna M.
name: Rac, Valeria
name: Berta, Whitney
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 3.
Semitoric integrable systems on symplectic 4-manifolds
Creators: name: Pelayo, Alvaro
name: Ngoc, San Vu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Symplectic Geometry (math.SG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Let M be a symplectic 4-manifold. A semitoric integrable system on M is a pair of real-valued smooth functions J, H on M for which J generates a Hamiltonian S^1-action and the Poisson brackets {J,H} vanish. We shall introduce new global symplectic invariants for these systems; some of these invariants encode topological or geometric aspects, while others encode analytical information about the singularities and how they stand with respect to the system. Our goal is to prove that a semitoric system is completely determined by the invariants we introduce.
Additional file 4 of A realist review of factors critical for the implementation of eHealth in chronic disease management
Creators: name: Shahid, Nida
name: Parker, Gillian
name: Bielecki, Joanna M.
name: Rac, Valeria
name: Berta, Whitney
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 4.
A pilot study to investigate the feasibility of transporting saliva samples at room temperature with MAWI Cell Stabilization buffer
Creators: name: Yenkai Lim
name: Chamindie Punyadeera
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Saliva is considered as the front-line of non-invasive diagnostics as novel biomarkers continue to emerge for an array of systemic diseases. Biomarker development pipeline relies heavily on pre-analytical process such as saliva collection, handling, transport and storage. The aim of this study was to systematically evaluate the applicability of MAWI Cell Stabilization (MCS) buffer to transport and store saliva samples at room temperature for downstream applications. Human and bacterial genomic DNA (gDNA) and total protein in saliva samples with and without MCS buffer were quantified for a week at three time-points at room temperature. Based on our findings, MCS buffer was able to preserve human gDNA and total protein within the testing time-points. While bacterial gDNA was accurately preserved, MCS buffer was unable to halt bacterial growth at room temperature. We have identified a non-alcohol-based, non-lytic buffer that could maintain the integrity of both genomic materials and proteins in saliva samples. MCS buffer offers a method to potentially transport and store saliva samples at room temperature, accelerating the translation of salivary assays in remote/rural and resource limited settings.
Deep Chandra observations of diffuse hot plasma in M83
Creators: name: Wang, Q. Daniel
name: Zeng, Yuxuan
name: Bogda, Akos
name: Ji, Li
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It is widely believed that galaxy formation and evolution is regulated by stellar mechanical feedback in forms of fast stellar winds and supernova explosions. However, the coupling of this feedback with the interstellar medium remains poorly understood. We examine how the coupling may be traced by diffuse soft X-ray emission in M83 -- a nearby face-on spiral galaxy undergoing active star formation, based chiefly on 729~ks Chandra observations. Our main findings are 1) the X-ray emission is enhanced not only along the galaxy's grand spiral arms, but also clearly in their downstreams; 2) the spectrum of the emission can be well characterized by a super-solar metallicity plasma with a lognormal temperature distribution, plus an X-ray absorption of a lognormal column density distribution; 3) the intensity of the emission is strongly anti-correlated with the dust obscuration seen in optical images of the galaxy. These findings suggest A) the morphology of the X-ray emission is likely due to the convolution of the feedback heating of the plasma with its thermal and dynamical evolution; B) the X-ray emission, accounting for ~10% of the feedback energy input rate, probably traces only the high-energy tail of the radiation from the plasma; C) a good fraction of the recent star forming regions seems sufficiently energetic to produce multi-phased outflows, likely responsible for much of the dust obscuration and X-ray absorption. Direct confrontation of the findings with theories/simulations could help to understand the underlying astrophysics of the coupling and how the hot plasma shapes the interstellar medium.
description: Just excepted for publication in MNRAS; comments are welcome
Additional file 6 of A realist review of factors critical for the implementation of eHealth in chronic disease management
Creators: name: Shahid, Nida
name: Parker, Gillian
name: Bielecki, Joanna M.
name: Rac, Valeria
name: Berta, Whitney
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 6.
Additional file 5 of A realist review of factors critical for the implementation of eHealth in chronic disease management
Creators: name: Shahid, Nida
name: Parker, Gillian
name: Bielecki, Joanna M.
name: Rac, Valeria
name: Berta, Whitney
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy

description: Supplementary Material 5.
NLO electroweak potentials for minimal dark matter and beyond
Creators: name: Urban, Kai
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the one-loop correction to the static potential induced by $γ$, $W$ and $Z$-exchange at tree-level for arbitrary heavy standard model multiplets. We find that the result obeys a "Casimir-like" scaling, making the NLO correction to the potential a "low-energy" property of the electroweak gauge bosons. Furthermore, we discuss the phenomenology of the NLO potentials, the analytically known asymptotic limits and provide fitting functions in position space for easy use of the results.
description: LaTeX, 27 pages
On a heuristic point of view related to quantum nonequilibrium statistical mechanics
Creators: name: de Almeida, Norton G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper I propose a new way for counting the microstates of a system out of equilibrium. As, according to quantum mechanics, things happen as if a given particle can be found in more than one state at once, I extend this concept to propose the coherent access by a particle to the available states of a system. By coherent access I mean the possibility for the particle to act as if it is populating more than one microstate at once. This hypothesis has experimental implications, since the thermodynamical probability and, as a consequence, the Bose-Einstein distribution as well as the argument of the Boltzmann factor is modified.
description: 5 pages
Dusty Cometary Globules in W5
Creators: name: Koenig, X. P.
name: Allen, L. E.
name: Kenyon, S. J.
name: Su, K. Y. L.
name: Balog, Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of four dusty cometary tails around low mass stars in two young clusters belonging to the W5 star forming region. Fits to the observed emission profiles from 24 micron observations with the Spitzer Space Telescope give tail lifetimes < 30 Myr, but more likely < 5 Myr. This result suggests that the cometary phase is a short lived phenomenon, occurring after photoevaporation by a nearby O star has removed gas from the outer disk of a young low mass star (see also Balog et al. 2006; Balog et al. 2008).
description: 11 pages, 3 figures. Accepted for publication to ApJ Letters
Refined fundamental parameters of Canopus from combined near-IR interferometry and spectral energy distribution
Creators: name: de Souza, A. Domiciano
name: Zorec, J.
name: Millour, F.
name: Bouquin, J. -B. Le
name: Spang, A.
name: Vakili, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Canopus, the brightest and closest yellow supergiant to our Solar System, offers a unique laboratory for understanding the physics of evolved massive stars. The accurate and precise PIONIER data allowed us to simultaneously measure the angular diameter and the limb darkening (LD) profile using different analytical laws. We found that the power-law LD, being also in agreement with predictions from stellar atmosphere models, reproduces the interferometric data well. For this model we measured an angular diameter of $7.184 \pm 0.0017 \pm 0.029$ mas and an LD coefficient of $0.1438 \pm 0.0015$, which are respectively $\gtrsim 5$ and $\sim15-25$ more precise than in our previous A\&A paper on Canopus from 2008. From a dedicated analysis of the interferometric data, we also provide new constraints on the putative presence of weak surface inhomogeneities. Additionally, we analyzed the SED in a innovative way by simultaneously fitting the reddening-related parameters and the stellar effective temperature and gravity. We find that a model based on two effective temperatures is much better at reproducing the whole SED, from which we derived several parameters, including a new bolometric flux estimate. The Canopus angular diameter and LD measured in this work with PIONIER are the most precise to date, with a direct impact on several related fundamental parameters. Moreover, thanks to our joint analysis, we were able to determine a set of fundamental parameters that simultaneously reproduces both high-precision interferometric data and a good quality SED and, at the same time, agrees with stellar evolution models.
description: 14 pages, 7 figures
Modeling cellular self-organization in strain-stiffening hydrogels
Creators: name: Erhardt, André
name: Peschka, Dirk
name: Dazzi, Chiara
name: Schmeller, Leonie
name: Petersen, Ansgar
name: Checa, Sara
name: Münch, Andreas
name: Wagner, ##!Error: Attribute  Unknown!##
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: 65Z05
subject: 74B05
subject: 74B20
subject: 92C10
subject: 92C17

description: We develop a three-dimensional mathematical model framework for the collective evolution of cell populations by an agent-based model (ABM) that mechanically interacts with the surrounding extracellular matrix (ECM) modeled as a hydrogel. We derive effective two-dimensional models for the geometrical set-up of a thin hydrogel sheet to study cell-cell and cell-hydrogel mechanical interactions for a range of external conditions and intrinsic material properties. We show that without any stretching of the hydrogel sheets, cells show the well-known tendency to form long chains with varying orientations. Our results further show that external stretching of the sheet produces the expected nonlinear strain-softening or stiffening response, with, however, little qualitative variation of the overall cell dynamics for all the materials considered. The behavior is remarkably different when solvent is entering or leaving from strain softening or stiffening hydrogels, respectively.
title: Frontmatter, Table of Contents, Preface, Workshop Organization, List of Authors
Creators: name: Vardanega, Tullio
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2012
Subjects: subject: Frontmatter
subject: Table of Contents
subject: Preface
subject: Workshop Organization
subject: List of Authors

description: Frontmatter, Table of Contents, Preface, Workshop Organization, List of Authors
description: OASIcs, Vol. 23, 12th International Workshop on Worst-Case Execution Time Analysis, pages i-xi
Origin of the ring structures in Hercules A -- Sub-arcsecond 144 MHz to 7 GHz observations
Creators: name: Timmerman, R.
name: van Weeren, R. J.
name: Callingham, J. R.
name: Cotton, W. D.
name: Perley, R.
name: Morabito, L. K.
name: Gizani, N. A. B.
name: Bridle, A. H.
name: O'Dea, C. P.
name: Baum, S. A.
name: Tremblay, G. R.
name: Kharb, P.
name: Kassim, N. E.
name: Röttgering, H. J. A.
name: Botteon, A.
name: Sweijen, F.
name: Tasse, C.
name: Brüggen, M.
name: Moldon, J.
name: Shimwell, T.
name: Brunetti, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The prominent radio source Hercules A features complex structures in its radio lobes. Although it is one of the most comprehensively studied sources in the radio sky, the origin of the ring structures in the Hercules A radio lobes remains an open question. We present the first sub-arcsecond angular resolution images at low frequencies (<300 MHz) of Hercules A, made with the International LOFAR Telescope. With the addition of data from the Karl G. Jansky Very Large Array, we mapped the structure of the lobes from 144 MHz to 7 GHz. We explore the origin of the rings within the lobes of Hercules A, and test whether their properties are best described by a shock model, where shock waves are produced by the jet propagating in the radio lobe, or by an inner-lobe model, where the rings are formed by decelerated jetted plasma. From spectral index mapping our large frequency coverage reveals that the curvature of the different ring spectra increases with distance away from the central active galactic nucleus. We demonstrate that the spectral shape of the rings is consistent with synchrotron aging, which speaks in favor of an inner-lobe model where the rings are formed from the deposition of material from past periods of intermittent core activity.
description: Accepted for a special issue of A&A on sub-arcsecond imaging with LOFAR
Genetic and Metabolic Determinants of Plasma Levels of ANGPTL8 - Supplemental data
Creators: name: Oldoni, Federico
name: Bass, Kevin
name: Kozlitina, Julia
name: Hudson, Hannah
name: Shihanian, Lisa M.
name: Gusarova, Viktoria
name: Cohen, Jonathan C.
name: Hobbs, Helen H.
Publisher: name: figshare
Year: 2021
Subjects: subject: 60499 Genetics not elsewhere classified
subject: FOS: Biological sciences

description: Context: ANGPTL8 (A8) plays a key role in determining the tissue fate of circulating triglycerides (TGs). Plasma A8 levels are associated with several parameters of glucose and TG metabolism, but the causality of these relationships and the contribution of genetic variants to differences in A8 levels have not been explored. Objective: To characterize the frequency distribution of plasma A8 levels in a diverse population using a newly-developed ELISA and to identify genetic factors contributing to differences in plasma A8 levels. Design and Setting: Population-based sample of Dallas County. Participants: Individuals in the Dallas Heart Study (DHS-1, n=3,538; DHS-2, n=3,283), including 2,131 individuals with repeated measurements 7-9 years apart (age 18-85 years; >55% female; 52% Black; 29% White; 17% Hispanic; and 2% other). Main Outcome Measure(s): Associations of A8 levels with body-mass index (BMI), plasma levels of glucose, insulin, lipids, hepatic TG and DNA variants identified by exome-wide sequencing. Results: A8 levels varied over a 150-fold range (2.1 - 318 ng/mL; median, 13.3 ng/mL) and differed between racial/ethnic groups (Blacks > Hispanics > Whites). A8 levels correlated with BMI, fasting glucose, insulin and TG levels. A variant in A8, R59W, accounted for 17% of the inter-individual variation in A8 levels, but was not associated with the metabolic parameters correlated with plasma A8 concentrations. Conclusions: A8 levels were strongly associated with indices of glucose and TG metabolism, but the lack of association of genetic variants at the A8 locus that impact A8 levels with these parameters indicates that differences in A8 levels are not causally related to the associated metabolic phenotypes.
Non-Gaussian halo bias and future galaxy surveys
Creators: name: Carbone, Carmelita
name: Verde, Licia
name: Matarrese, Sabino
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We forecast constraints on primordial non-Gaussianity achievable from forthcoming surveys by exploiting the scale-dependent halo bias introduced on large scales by non-Gaussian initial conditions. We explore the performance of exploiting both the shape of the galaxy power-spectrum on large scales and the cross-correlation of galaxies with Cosmic Microwave Background maps through the Integrated Sachs Wolfe effect. We find that future surveys can detect primordial non-Gaussianity of the local form with a non-Gaussianity parameter $|f_{\rm NL}|$ of order unity. This is particularly exciting because, while the simplest single-field slow-roll models of inflation predict a primordial $|f_{\rm NL}|\ll 1$, this signal sources extra contributions to the effective $f_{\rm NL}$ of large-scale structures that are expected to be above our predicted detection threshold.
description: 5pages, 1 Table, typos corrected
Additional file 6 of 2D visco-elasto-plastic subduction models in the presence of a high density and viscosity continental block: a case study for the slab geometry beneath the Kii Peninsula, southwest Japan
Creators: name: Moreno, Erika Jessenia
name: Yoshioka, Shoichi
name: Manea, Vlad Constantin
name: Manea, Marina
name: Suenaga, Nobuaki
Publisher: name: figshare
Year: 2025
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geophysics

description: Additional file 6.
Koshino-Taylor effect in graphene
Creators: name: Cano, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We discuss the phonon-assisted scattering of electrons by defects, i.e., the so-called Koshino-Taylor effect, in graphene. The two-dimensional character of graphene implies that the strength of the Koshino-Taylor effect can be considerably larger than in ordinary metals. We show that at finite temperatures the defect-induced resistivity formally diverges in the thermodynamic limit, having a non-analytic $T\ln T$ component when finite size effects are taken into account.
description: 4 pages, v2: added references
A 20 Year Radio Light Curve for the Young Supernova Remnant G1.9+0.3
Creators: name: Murphy, T.
name: Gaensler, B. M.
name: Chatterjee, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The radio source G1.9+0.3 has recently been identified as the youngest known Galactic supernova remnant, with a putative age of ~100 years. We present a radio light curve for G1.9+0.3 based on 25 epochs of observation with the Molonglo Observatory Synthesis Telescope, spanning 20 years from 1988 to 2007. These observations are all at the same frequency (843 MHz) and comparable resolutions (43" x 91" or 43" x 95") and cover one fifth of the estimated lifetime of the supernova remnant. We find that the flux density has increased at a rate of 1.22 +0.24/-0.16 per cent per year over the last two decades, suggesting that G1.9+0.3 is undergoing a period of magnetic field amplification.
description: 5 pages, 4 figures, to be published in MNRAS Letters
Toward a Secure Crowdsourced Location Tracking System
Creators: name: Garg, Chinmay
name: Machiry, Aravind
name: Continella, Andrea
name: Kruegel, Christopher
name: Vigna, Giovanni
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: C.2.1; C.2.3; C.5.m

description: Low-energy Bluetooth devices have become ubiquitous and widely used for different applications. Among these, Bluetooth trackers are becoming popular as they allow users to track the location of their physical objects. To do so, Bluetooth trackers are often built-in within other commercial products connected to a larger crowdsourced tracking system. Such a system, however, can pose a threat to the security and privacy of the users, for instance, by revealing the location of a user's valuable object. In this paper, we introduce a set of security properties and investigate the state of commercial crowdsourced tracking systems, which present common design flaws that make them insecure. Leveraging the results of our investigation, we propose a new design for a secure crowdsourced tracking system (SECrow), which allows devices to leverage the benefits of the crowdsourced model without sacrificing security and privacy. Our preliminary evaluation shows that SECrow is a practical, secure, and effective crowdsourced tracking solution
description: 10 pages - ACM WiSec 2021 - Preprint
Staggered Multi-Field Inflation
Creators: name: Battefeld, Diana
name: Battefeld, Thorsten
name: Davis, Anne-Christine
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate multi-field inflationary scenarios with fields that drop out of the model in a staggered fashion. This feature is natural in certain multi-field inflationary setups within string theory; for instance, it can manifest itself when fields are related to tachyons that condense, or inter-brane distances that become meaningless when branes annihilate. Considering a separable potential, and promoting the number of fields to a smooth time-dependent function, we derive the formalism to deal with these models at the background and perturbed level, providing general expressions for the scalar spectral index and the running. We recover known results of e.g. a dynamically relaxing cosmological constant in the appropriate limits. We further show that isocurvature perturbations are suppressed during inflation, so that perturbations are adiabatic and nearly Gaussian. The resulting setup might be interpreted as a novel type of warm inflation, readily implemented within string theory and without many of the shortcomings associated with warm inflation. To exemplify the applicability of the formalism we consider three concrete models: assisted inflation with exponential potentials as a simple toy model (a graceful exit becomes possible), inflation from multiple tachyons (a constant decay rate of the number of fields and negligible slow roll contributions turns out to be in good agreement with observations) and inflation from multiple M5-branes within M-theory (a narrow stacking of branes yields a consistent scenario).
description: 29 pages, 2 figure; v2: slightly extended to match JCAP version. v3: pre-factor corrected in (28)-(30); conclusions unchanged
The resolved jet of 3C 273 at 150 MHz
Creators: name: Harwood, Jeremy J.
name: Mooney, Sean
name: Morabito, Leah K.
name: Quinn, John
name: Sweijen, Frits
name: Groeneveld, Christian
name: Bonnassieux, Etienne
name: Kappes, Alexander
name: Moldon, Javier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Since its discovery in 1963, 3C273 has become one of the most widely studied quasars with investigations spanning the electromagnetic spectrum. While much has been discovered about this historically notable source, its low-frequency emission is far less well understood. Observations in the MHz regime have traditionally lacked the resolution required to explore small-scale structures that are key to understanding the processes that result in the observed emission. In this paper we use the first sub-arcsecond images of 3C273 at MHz frequencies to investigate the morphology of the compact jet structures and the processes that result in the observed spectrum. Using the full complement of LOFAR's international stations, we produce $0.31 \times 0.21$ arcsec images of 3C273 at 150 MHz to determine the jet's kinetic power, place constraints on the bulk speed and inclination angle of the jets, and look for evidence of the elusive counter-jet at 150 MHz. Using ancillary data at GHz frequencies, we fit free-free absorption (FFA) and synchrotron self-absorption (SSA) models to determine their validity in explaining the observed spectra. The images presented display for the first time that robust, high-fidelity imaging of low-declination complex sources is now possible with the LOFAR international baselines. We show that the main small-scale structures of 3C273 match those seen at higher frequencies and that absorption is present in the observed emission. We determine the kinetic power of the jet to be in the range of $3.5 \times 10^{43}$ - $1.5 \times 10^{44}$ erg s$^{-1}$ which agrees with estimates made using higher frequency observations. We derive lower limits for the bulk speed and Lorentz factor of $β\gtrsim 0.55$ and $Γ\geq 1.2$ respectively. The counter-jet remains undetected at $150$ MHz, placing a limit on the peak brightness of $S_\mathrm{cj\_150} < 40$ mJy beam$^{-1}$.
description: Accepted to a special issue of A&A on sub-arcsecond imaging with LOFAR. 13 pages, 10 figures, 2 tables
Additional file 7 of 2D visco-elasto-plastic subduction models in the presence of a high density and viscosity continental block: a case study for the slab geometry beneath the Kii Peninsula, southwest Japan
Creators: name: Moreno, Erika Jessenia
name: Yoshioka, Shoichi
name: Manea, Vlad Constantin
name: Manea, Marina
name: Suenaga, Nobuaki
Publisher: name: figshare
Year: 2025
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geophysics

description: Additional file 7.
Comparing Example-Based Collaborative Reflection to Problem Solving Practice for Learning during Team-Based Software Engineering Projects
Creators: name: Sankaranarayanan, Sreecharan
name: Kandimalla, Siddharth Reddy
name: Bogart, Christopher
name: Murray, R. Charles
name: An, Haokang
name: Hilton, Michael
name: Sakr, Majd
name: Rosé, Carolyn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Contributing to the literature on aptitude-treatment interactions between worked examples and problem-solving, this paper addresses differential learning from the two approaches when students are positioned as domain experts learning new concepts. Our evaluation is situated in a team project that is part of an advanced software engineering course. In this course, students who possess foundational domain knowledge but are learning new concepts engage alternatively in programming followed by worked example-based reflection. They are either allowed to finish programming or are curtailed after a pre-specified time to participate in a longer worked example-based reflection. We find significant pre- to post-test learning gains in both conditions. Then, we not only find significantly more learning when students participated in longer worked example-based reflections but also a significant performance improvement on a problem-solving transfer task. These findings suggest that domain experts learning new concepts benefit more from worked example-based reflections than from problem-solving.
description: 4 pages, 1 image, 1 table, 14th Computer Supported Collaborative Learning (CSCL) Proceedings at the Annual Meeting of the International Society of the Learning Sciences (ISLS)
Unmasking the history of 3C 293 with LOFAR sub-arcsecond imaging
Creators: name: Kukreti, Pranav
name: Morganti, Raffaella
name: Shimwell, Timothy W.
name: Morabito, Leah K.
name: Beswick, Robert J.
name: Brienza, Marisa
name: Hardcastle, Martin J.
name: Sweijen, Frits
name: Jackson, Neal
name: Miley, George K.
name: Moldon, Javier
name: Oosterloo, Tom
name: de Gasperin, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Active galactic nuclei (AGNs) show episodic activity, evident in galaxies that exhibit restarted radio jets. These restarted jets can interact with their environment, leaving signatures on the radio spectral energy distribution. Tracing these signatures requires resolved spectral index measurements over a broad frequency range including low frequencies. We present such a study for the radio galaxy 3C 293. Using the International LOFAR telescope (ILT) we probed spatial scales as fine as ~0.2" at 144 MHz, and to constrain the spectrum we combined these data with Multi-Element Radio Linked Interferometer Network (MERLIN) and Very Large Array (VLA) archival data. In the inner lobes (~2 kpc), we detect the presence of a spectral turnover that peaks at ~225 MHz and is most likely caused by free-free absorption from the rich surrounding medium. We confirm that these inner lobes are part of a jet-dominated young radio source (spectral age $\lesssim$0.17 Myr), which is strongly interacting with the rich interstellar medium (ISM) of the host galaxy. The outer lobes (~100 kpc) have a spectral index of $α$~0.6-0.8 from 144-4850 MHz with a remarkably uniform spatial distribution and only mild spectral curvature ($Δα\lesssim$ 0.2). We propose that intermittent fuelling and jet flow disruptions are powering the mechanisms that keep the spectral index in the outer lobes from steepening and maintain the spatial uniformity of the spectral index. Overall, it appears that 3C 293 has gone through multiple (two to three) epochs of activity. This study adds 3C 293 to the new sub-group of restarted galaxies with short interruption time periods. This is the first time a spatially resolved study simultaneously studies a young source as well as the older outer lobes at such low frequencies. This illustrates the potential of the ILT to expand such studies to a larger sample of radio galaxies.
description: Accepted for a special issue of A&A on sub-arcsecond imaging with LOFAR
Additional file 8 of 2D visco-elasto-plastic subduction models in the presence of a high density and viscosity continental block: a case study for the slab geometry beneath the Kii Peninsula, southwest Japan
Creators: name: Moreno, Erika Jessenia
name: Yoshioka, Shoichi
name: Manea, Vlad Constantin
name: Manea, Marina
name: Suenaga, Nobuaki
Publisher: name: figshare
Year: 2025
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geophysics

description: Additional file 8.
Additional file 14 of 2D visco-elasto-plastic subduction models in the presence of a high density and viscosity continental block: a case study for the slab geometry beneath the Kii Peninsula, southwest Japan
Creators: name: Moreno, Erika Jessenia
name: Yoshioka, Shoichi
name: Manea, Vlad Constantin
name: Manea, Marina
name: Suenaga, Nobuaki
Publisher: name: figshare
Year: 2025
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geophysics

description: Additional file 14.