cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gauss-Bonnet Cosmology with Induced Gravity and Non-Minimally Coupled Scalar Field on the Brane
Creators: name: Nozari, Kourosh
name: Fazlpour, Behnaz
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a cosmological model with non-minimally coupled scalar field on the brane, where Gauss-Bonnet and Induced Gravity effects are taken into account. This model has 5D character at both high and low energy limits but reduces to 4D gravity in intermediate scales. While induced gravity is a manifestation of the IR limit of the model, Gauss-Bonnet term and non-minimal coupling of scalar field and induced gravity are essentially related to UV limit of the scenario. We study cosmological implications of this scenario focusing on the late-time behavior of the solutions. In this setup, non-minimal coupling plays the role of an additional fine-tuning parameter that controls the initial density of predicted finite density big bang. Also, non-minimal coupling has important implication on the bouncing nature of the solutions.
description: 33 pages, 12 figures, one table, revised and final version accepted for publication in JCAP
Essential surfaces in highly twisted link complements
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: math.GT
57M25, 57M50

description: © 2015, Mathematical Sciences Publishers. All Rights Reserved. We prove that in the complement of a highly twisted link, all closed, essential, meridionally incompressible surfaces must have high genus. The genus bound is proportional to the number of crossings per twist region. A similar result holds for surfaces with meridional boundary: such a surface either has large negative Euler characteristic or is an n–punctured sphere visible in the diagram.
First moment of the flavour octet nucleon parton distribution function using lattice QCD
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: Lattice QCD
Deep Inelastic Scattering
Lattice Gauge Field Theories
Lattice Quantum Field Theory

description: We perform a lattice computation of the flavour octet contribution to the average quark momentum in a nucleon, $\la x\ra^{(8)}_{\mu^2 = 4 \gev^2}$. In particular, we fully take the disconnected contributions into account in our analysis for which we use a generalization of the technique developed in \cite{Dinter:2012tt}. We investigate systematic effects with a particular emphasis on the excited states contamination. We find that in the renormalization free ratio $\frac{\la x \ra^{(3)}}{\la x \ra^{(8)}}$ (with $\la x \ra^{(3)}$ the non-singlet moment) the excited state contributions cancel to a large extend making this ratio a promising candidate for a comparison to phenomenological analyses. Our final result for this ratio is in agreement with the phenomenological value and we find, including systematic errors, $\frac{\la x \ra^{(3)}}{\la x \ra^{(8)}} = 0.39(1)(4)$.
A search for the standard model Higgs boson in the missing energy and acoplanar b-jet topology at sqrt(s) = 1.96 TeV
Creators: name: D0 Collaboration
name: Abazov, V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report a search for the standard model Higgs boson in the missing energy and acoplanar b-jet topology, using an integrated luminosity of 0.93 inverse femtobarn recorded by the D0 detector at the Fermilab Tevatron Collider. The analysis includes signal contributions from pp->ZH->nu nu b b, as well as from WH production in which the charged lepton from the W boson decay is undetected. Neural networks are used to separate signal from background. In the absence of a signal, we set limits on the cross section of pp->VH times the branching ratio of H->bb at the 95% C.L. of 2.6 - 2.3 pb, for Higgs boson masses in the range 105 - 135 GeV, where V=W,Z. The corresponding expected limits range from 2.8 pb - 2.0 pb.
description: Submitted to Phys. Rev. Letters
$η'$ production in proton-proton collisions far from the threshold
Creators: name: Szczurek, Antoni
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: I discuss exclusive production of the $η'$ meson in the $pp \to pη'p$ reaction far from the threshold. The contribution of diffractive component as well as that for $γ^* γ^* \to η'$ fusion are calculated. In the first case the formalism of unintegrated gluon distribution functions (UGDF) is used. The distributions in the Feynman $x_F$ (or rapidity), transferred four-momenta squared between initial and final protons ($t_1$, $t_2$) and azimuthal angle difference between outgoing protons ($Φ$) are calculated. The deviations from the $\sin^2(Φ)$ dependence predicted by one-step vector-vector-pseudoscalar coupling are quantified and discussed. The results are compared with the results of the WA102 collaboration at CERN. Most of the models of UGDF from the literature give too small cross section as compared to the WA102 data and predict angular distribution in relative azimuthal angle strongly asymmetric with respect to $π/2$ in disagreement with the WA102 data. This points to a different mechanism at the WA102 energy. Predictions for RHIC, Tevatron and LHC are given.
description: 7 pages, 6 figures and 1 table invited talk at the symposium on meson physics at COSY11 and WASA-at-COSY, Cracow, Poland, June 17-22, 2007
title: An Automated Setup for Large-Scale Simulation-Based Fault-Injection Experiments on Asynchronous Digital Circuits
Creators: name: Behal, Patrick
name: Huemer, Florian Ferdinand
name: Najvirt, Robert
name: Steininger, Andreas
Publisher: name: TU Wien
Year: 2021
Subjects: asynchronous

description: Experimental fault injection is an essential tool in the assessment and verification of fault-tolerance properties. Often, in these experiments it is impossible to reasonably cover the huge parameter space spanned by target state and fault parameters, and compromises or restrictions must be made. This is even more pronounced for asynchronous circuits where a convenient discretization of time through a synchronous clock is not possible. In this paper we present a fault-injection toolset that allows for a very efficient injection and data processing, thus bringing studies with many billions of meaningful injections into asynchronous targets within reach. The key ingredients of our solution are an auto-setup feature capable of optimizing parameter values, seamless distribution of the simulation load to many host computers, and efficient arrangement of the important settings and readings in a database. We will use the example of a comparative study of different asynchronous pipeline styles to motivate the need for such an approach and illustrate its benefits.
Relativistic dynamical friction in a collisional fluid
Creators: name: Barausse, Enrico
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The dynamical friction force experienced by a body moving at relativistic speed in a gaseous medium is examined. This force, which arises due to the gravitational interaction of the body with its own gravitationally-induced wake, is calculated for straight-line and circular motion, generalizing previous results by several authors. Possible applications to the study of extreme mass-ratio inspirals around strongly-accreting supermassive black holes are suggested.
description: 9 pages and 1 figure. Accepted for publication in MNRAS. Replaced to include minor changes made in proof
Waterproofed photomultiplier tube assemblies for the Daya Bay reactor neutrino experiment
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: Daya Bay
Reactor
Anti-neutrino
Waterproof
Photomultiplier tube
MACRO

description: © 2015 Elsevier B.V. Abstract In the Daya Bay Reactor Neutrino Experiment 960 20-cm-diameter waterproof photomultiplier tubes are used to instrument three water pools as Cherenkov detectors for detecting cosmic-ray muons. Of these 960 photomultiplier tubes, 341 are recycled from the MACRO experiment. A systematic program was undertaken to refurbish them as waterproof assemblies. In the context of passing the water leakage check, a success rate better than 97% was achieved. Details of the design, fabrication, testing, operation, and performance of these waterproofed photomultiplier-tube assemblies are presented.
Gertrud Bing, bibliography of works and critical literature (with a biographical note in Appendix)
Creators: name: Centanni, Monica; Del Prete, Elisa
Publisher: name: La Rivista di Engramma
Year: 2020
Subjects: Gertrud Bing
bibliography
biographical note

description: A complete bibliography of the writings of Gertrud Bing and of the curatorships, publications, and translations edited by herself. In addition, a review of the critical literature dedicated to her, as a scholar and intellectual (updated in November 2020). In the Appendix, a schematic biographical note.
Lifting 1/4-BPS States in $AdS_3\times S^3 \times T^4$
Creators: name: Benjamin, Nathan
name: Keller, Christoph A.
name: Zadeh, Ida G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We establish a framework for doing second order conformal perturbation theory for the symmetric orbifold Sym$^N(T^4)$ to all orders in $N$. This allows us to compute how 1/4-BPS states of the D1-D5 system on $AdS_3\times S^3\times T^4$ are lifted as we move away from the orbifold point. As an application we confirm a previous observation that in the large $N$ limit not all 1/4-BPS states that can be lifted do get lifted. This provides evidence that the supersymmetric index actually undercounts the number of 1/4-BPS states at a generic point in the moduli space.
description: 34 pages, Mathematica notebook included; v2: minor changes
The indigenous voice : the expression of indigenous culture in the literary works of José María Arguedas, Vincent Eri, Witi Ihimaera and Particia Grace
Creators: name: Taylor, Rita
Publisher: name: University of British Columbia
Year: 2010

description: What links the texts of José María Arguedas ("Los ríos profundos", 1958) , Vincent Eri ("The Crocodile", 1970), Witi Ihimaera ("Tangi", 1973) and Patricia Grace ("Mutuwhenua", 1978) together is their common goal of expressing indigenous culture from an 'inside' perspective in response to foreign interpretations. The purpose of this study is to investigate the problematic process of literary rendering of indigenous culture in its context of domination. In the Introduction, a theoretical framework is proposed within which the critiques of the individual texts are situated. Since the thematic content of these works is based on cultural and social conflict and the purpose of the study is to investigate the process of the aesthetic mediation of these conflicts, the critical theories drawn from are 'sociological'. Within this frame of reference basic questions referring to the relation of literature to ideology and the social function of literature are posed. The chapters dealing with the specific texts investigate how each author delineates the conflict of the dominating and dominated cultures, by what means an inner perspective of indigenous culture is rendered, how the problem of expressing indigenous culture in the language of the dominating culture is resolved, and how the aesthetic devices correspond with the proposed 'indigenous' or 'pro-indigenous' ideology. In the section on "Los ríos profundos", the text is briefly related to "indigenismo", both as a pro-indigenous movement and as a concept. Arguedas' delineation of the social and cultural contradictions of the Andean world and his methods of rendering indigenous culture from the 'inside' by integrating Quechua structures (language, music, mythology), and through the use of aesthetic devices (metaphor, image, symbol) are discussed. The chapter on "The Crocodile" focuses on Eri's rendering of the process of colonization whereby the colonized are divested of their cultural structures. This study again is based on how this process is rendered from 'inside' the indigenous perspective and how the aesthetic devices used by the author correspond with the indigenous viewpoint. In the chapter on "Tangi" and "Mutuwhenua", the relationship between the general concepts and process of "maoritanga" and the texts is drawn. Ihimaera's and Grace's methods of defining a maori cultural identity in the literary medium are discussed and the implications regarding their initiatives towards 'retrieving' culture are considered. In the Conclusion, the texts by the four authors are drawn into closer relation with one another. The findings of the study of their texts, with regard to how each author expresses the indigenous 'voice' and the ideological implications of their particular articulations, are summarized.
Measurement of scintillation and ionization yield and scintillation pulse shape from nuclear recoils in liquid argon
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: physics.ins-det
hep-ex

description: © 2015 American Physical Society. We have measured the scintillation and ionization yield of recoiling nuclei in liquid argon as a function of applied electric field by exposing a dual-phase liquid argon time projection chamber (LAr-TPC) to a low energy pulsed narrow band neutron beam produced at the Notre Dame Institute for Structure and Nuclear Astrophysics. Liquid scintillation counters were arranged to detect and identify neutrons scattered in the TPC and to select the energy of the recoiling nuclei. We report measurements of the scintillation yields for nuclear recoils with energies from 10.3 to 57.3Â keV and for median applied electric fields from 0 to 970 V/cm. For the ionization yields, we report measurements from 16.9 to 57.3 keV and for electric fields from 96.4 to 486 V/cm. We also report the observation of an anticorrelation between scintillation and ionization from nuclear recoils, which is similar to the anticorrelation between scintillation and ionization from electron recoils. Assuming that the energy loss partitions into excitons and ion pairs from Kr83m internal conversion electrons is comparable to that from Bi207 conversion electrons, we obtained the numbers of excitons (Nex) and ion pairs (Ni) and their ratio (Nex/Ni) produced by nuclear recoils from 16.9 to 57.3 keV. Motivated by arguments suggesting direction sensitivity in LAr-TPC signals due to columnar recombination, a comparison of the light and charge yield of recoils parallel and perpendicular to the applied electric field is presented for the first time.
title: On Stewartson’s collision problem on a sphere
Creators: name: Scheichl, Bernhard
name: Klettner, Christian
name: Smith, Frank T.
Publisher: name: TU Wien
Year: 2025
Subjects: boundary layers
rotating flows
viscous-inviscid interactions
collision singularity
jet formation

description: This talk is about recent progress made on a long-standing fundamental problem in bound- ary layer theory and beyond. We consider the flow induced by a rigid sphere that spins around its diameter in an otherwise quiescent Newtonian fluid of uniform properties and filling an unbounded domain. Here we distinguish (roughly) between the unsteady flow due to start-up from rest, where the angular velocity increases to finally assume a constant value, and the, potentially attained, steady one. The associated Reynolds number (Re), as the only parameter at play, shall take on arbitrarily large values. We tackle this classical problem by solving the full Navier-Stokes equations using a finite-volume technique, which allows for re- liable numerical predictions for values of Re exceeding 300,000, as well as by asymptotic analysis. For comparison with previous results, three different starting conditions initiate the numerical computations: impulsively (classical situation), staggered impulsively, ramp-type,. The ana- lytical description of the start-up phase in the first case is revisited and extended to finite-Re effects. One thereby finds that the flow meets both the axial and the equatorial symmetry automatically. An intriguing unsettled question concerns the equatorial collision and the associated ejection of a radial jet. Stewartson (1958) proposed a flow structure under the assumption of station- arity that shed light on the severe challenges arising when it comes to its self-consistent completion. The associated controversy about his and Smith & Duck's (1977) conflicting structure, mostly regarding the presence and structure of the toroidal eddies, has gained at- traction ever since. In contrast to claims made very recently, we demonstrate theoretically why the latter, resorting to free viscous-inviscid interaction, is to be favoured. However, we furthermore demonstrate that perfect stationarity cannot exist, which is also substantiated by the numerical results and the well-known equatorial finite-time break-up that terminates the solution of the problem governing the longitudinal boundary layer. First steps concerning its regularisation seem to resolve that discrepancy. In a nutshell, the present findings suggest a jet moving constantly into the fluid at rest while it produces vortices travelling back towards the equator. We believe that they finally provoke laminar-turbulent transition once the sym- metries are relaxed. Finally, we give a brief account of how these results are modified if the sphere is axially squeezed or stretched. This is a topic of ongoing activities. This research is carried out jointly by Bernhard Scheichl (TU Wien) and Christian Klettner and Frank T. Smith (both UCL).
Quantitative Analysis of HFCs, PFCs, and SF6 Emission from Thailand Industries
Creators: name: Varittha Sriruang, Nathsuda Pumijumnong
Publisher: name: คณะสิ่งแวดล้อมและทรัพยากรศาสตร์
Year: 2010
Subjects: Hydro fluorocarbons (HFCs) , Per fluorocarbons (PFCs) ,Sulphurhexafluoride (SF6) ,Emission Factor , Thailand

description: 1, 8, Environment and Natural Resources Journal
กลยุทธ์การพัฒนามหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Creators: name: ดวงสุดา  เตโชติรส
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2011
Subjects: ความเค้นและความเครียด, ความเข้มของความเข้ม, ระเบียบวิธีไฟไนต์เอลิเมนต์

description: 1, 5, วารสารวิชาการและวิจัย มทร.พระนคร
การวิเคราะห์ความเข้มของความเค้นที่เกิดขึ้นในหัวรีฟอร์มด้วยวิธีไฟไนต์เอลิเมนต์
Creators: name: วรวิทย์  วรนาวิน
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2011
Subjects: กลยุทธ์การพัฒนา

description: 1, 5, วารสารวิชาการและวิจัย มทร.พระนคร
การศึกษาความเป็นไปได้ในการผลิตแผ่นกันกระแทกจากชานอ้อย
Creators: name: อัญชลี  กิจจะวัฒนะ
Publisher: name: มหาวิทยาลัยเทคโนโลยีราชมงคลพระนคร
Year: 2011
Subjects: ชานอ้อย, แผ่นกันกระแทก

description: 1, 5, วารสารวิชาการและวิจัย มทร.พระนคร
ตัวบ่งชี้สมรรถนะหลักของเจ้าหน้าที่กรมราชทัณฑ์ จากการวิเคราะห์องค์ประกอบเชิงยืนยันอันดับที่สอง
Creators: name: วิศิษฐ์  ฤทธิบุญไชย
Publisher: name: มหาวิทยาลัยรามคำแหง
Year: 2011
Subjects: สมรรถนะหลัก, กรมราชทัณฑ์, การวิเคราะห์องค์ประกอบเชิงยืนยันอันดับที่สอง

description: 1, 5, วารสารวิชาการและวิจัย มทร.พระนคร
Random extensions of free groups and surface groups are hyperbolic
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2016
Subjects: math.GT
math.DS
math.GR

description: © The Author(s) 2015. Published by Oxford University Press. In this note, we prove that a random extension of either the free group FN of rank N ≥ 3 or of the fundamental group of a closed, orientable surface Sg of genus g≥2 is a hyperbolic group. Here, a random extension is one corresponding to a subgroup of either Out(FN) or Mod(Sg) generated by k independent random walks. Our main theorem is that a k-generated random subgroup of Mod(Sg) or Out(FN) is free of rank k and convex cocompact. More generally, we show that a k-generated random subgroup of a weakly hyperbolic group is free and undistorted.
การนำกลวิธีการอ่านมาใช้ในการอ่านภาษาอังกฤษเชิงวิชาการ
Creators: name: รักชนก แสงภักดีจิต
Publisher: name: มหาวิทยาลัยขอนแก่น
Year: 2011
Subjects: การอ่านเชิงวิชาการ, กลวิธีในการอ่าน, นักศึกษาระดับปริญญาตรี, การสำรวจเชิงคุณภาพ

description: 1, 5, วารสารวิชาการและวิจัย มทร.พระนคร
Precision measurement of the p (e,e'p)π0 reaction at threshold
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: Hall A Collaboration

description: © 2015 American Physical Society. New results are reported from a measurement of π0 electroproduction near threshold using the p(e,e'p)π0 reaction. The experiment was designed to determine precisely the energy dependence of s- and p-wave electromagnetic multipoles as a stringent test of the predictions of chiral perturbation theory (ChPT). The data were taken with an electron beam energy of 1192 MeV using a two-spectrometer setup in Hall A at Jefferson Lab. For the first time, complete coverage of the φπ∗ and θπ∗ angles in the pπ0 center of mass was obtained for invariant energies above threshold from 0.5 up to 15 MeV. The 4-momentum transfer Q2 coverage ranges from 0.05 to 0.155(GeV/c)2 in fine steps. A simple phenomenological analysis of our data shows strong disagreement with p-wave predictions from ChPT for Q2>0.07(GeV/c)2, while the s-wave predictions are in reasonable agreement.
Determination of the beam-spin asymmetry of deuteron photodisintegration in the energy region Eγ=1.1 -2.3 GeV
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: nucl-ex

description: © 2015 American Physical Society. The beam-spin asymmetry, Σ, for the reaction γd→pn has been measured using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility (JLab) for six photon-energy bins, between 1.1 and 2.3 GeV, and proton angles in the center-of-mass frame, θc.m., between 25 and 160. These are the first measurements of beam-spin asymmetries at θc.m.=90 for photon-beam energies above 1.6 GeV, and the first measurements for angles other than θc.m.=90. The angular and energy dependence of Σ is expected to aid in the development of QCD-based models to understand the mechanisms of deuteron photodisintegration in the transition region between hadronic and partonic degrees of freedom, where both effective field theories and perturbative QCD cannot make reliable predictions.
Matrix dufresne identities
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2016
Subjects: math.PR

description: © The Author(s) 2015. Published by Oxford University Press. We prove a version of the classical Dufresne identity for matrix processes. More specifically, we show that the inverse Wishart laws on the space of positive definite r × r matrices can be realized by ∫∞0 MsMTs ds in which t →MT is a drifted Brownian motion on GLr(ℝ). This solves a problem in the study of spiked random matrix ensembles which served as the original motivation for this result. Various known extensions of the Dufresne identity (and their applications) are also shown to have analogs in this setting. In particular, we identify matrix-valued diffusions built from Mt which generalize in a natural way the scalar processes figuring into the geometric L'evy and Pitman theorems of Matsumoto and Yor.
Astrometric mass ratios of 248 long-period binary stars resolved in Hipparcos and Gaia EDR3
Creators: name: Makarov, Valeri V.
name: Fabricius, Claus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Using the absolute astrometric positions and proper motions for common stars in the Hipparcos and Gaia catalogs separated by 24.75 years in the mean epoch, we compute mass ratios for long-period, resolved binary systems without any astrophysical assumptions or dependencies except the presence of inner binary subsystems that may perturb the observed mean proper motions. The mean epoch positions of binary companions from the Hipparcos Double and Multiple System Annex (DMSA) are used as the first epoch. The mean positions and proper motions of carefully cross-matched counterparts in Gaia EDR3 comprise the second epoch data. Selecting only results with sufficiently high signal-to-noise ratio and discarding numerous optical pairs, we construct a catalog of 248 binary systems, which is published online. Several cases with unusual properties or results are also discussed.
description: Accepted in AJ
title: Stabilizer entropies are monotones for magic-state resource theory
Creators: name: Leone, Lorenzo
name: Bittel, Lennart
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Entropy
subject: Quantum information theory
subject: Resource theories
classificationCode: 539
subject: Moderne Physik

description: Magic-state resource theory is a powerful tool with applications in quantum error correction, many-body physics, and classical simulation of quantum dynamics. Despite its broad scope, finding tractable resource monotones has been challenging. Stabilizer entropies have recently emerged as promising candidates (being easily computable and experimentally measurable detectors of nonstabilizerness) though their status as true resource monotones has been an open question ever since. In this Letter, we establish the monotonicity of stabilizer entropies for 𝛼≥2 within the context of magic-state resource theory restricted to pure states. Additionally, we show that linear stabilizer entropies serve as strong monotones. Furthermore, we extend stabilizer entropies to mixed states as monotones via convex roof constructions whose computational evaluation significantly outperforms optimization over stabilizer decompositions for low-rank density matrices. As a direct corollary, we provide improved conversion bounds between resource states, revealing a preferred direction of conversion between magic states. These results conclusively validate the use of stabilizer entropies within magic-state resource theory and establish them as the only known family of monotones that are experimentally measurable and computationally tractable.
Strangeness of the nucleon from lattice QCD
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: hep-lat
hep-ph

description: © 2015 American Physical Society. We present a nonperturbative calculation of the strangeness of the nucleon yN within the framework of lattice QCD. This observable is known to be an important cornerstone to interpret results from direct dark matter detection experiments. We perform a lattice computation for yN with an analysis of systematic effects originating from discretization, finite size, chiral extrapolation and excited state effects leading to the value of yN=0.173(50). The rather large uncertainty of this value of yN is dominated by systematic uncertainties which we are able to quantify in this work.
Isolation of flow and nonflow correlations by two- and four-particle cumulant measurements of azimuthal harmonics in sNN=200GeV Au+Au collisions
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: Heavy-ion
Flow
Nonflow

description: © 2015 The Authors. A data-driven method was applied to Au+Au collisions at sNN=200GeV made with the STAR detector at RHIC to isolate pseudorapidity distance δη-dependent and δη-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a δη-independent component of the correlation, which is dominated by anisotropic flow and flow fluctuations. It was also found to be independent of η within the measured range of pseudorapidity |η|<1. In 20-30% central Au+Au collisions, the relative flow fluctuation was found to be 34%±2%(stat.)±3%(sys.) for particles with transverse momentum pT less than 2 GeV/c. The δη-dependent part, attributed to nonflow correlations, is found to be 5%±2%(sys.) relative to the flow of the measured second harmonic cumulant at |δη|>0.7.
Balanced Hermitian metrics from SU(2)-structures
Creators: name: Fernández, Marisa
name: Tomassini, Adriano
name: Ugarte, Luis
name: Villacampa, Raquel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C55; 53C25; 32C10

description: We study the intrinsic geometrical structure of hypersurfaces in 6-manifolds carrying a balanced Hermitian SU(3)-structure, which we call {\em balanced} SU(2)-{\em structures}. We provide conditions which imply that such a 5-manifold can be isometrically embedded as a hypersurface in a manifold with a balanced SU(3)-structure. We show that any 5-dimensional compact nilmanifold has an invariant balanced SU(2)-structure as well as new examples of balanced Hermitian SU(3)-metrics constructed from balanced SU(2)-structures. Moreover, for $n=3,4$, we present examples of compact manifolds, endowed with a balanced SU(n)-structure, such that the corresponding Bismut connection has holonomy equal to SU(n).
A version of the goldman-millson theorem for filtered L∞-algebras
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: L-infinity algebras
Simplicial sets

description: © 2015 Elsevier Inc. In this paper we consider L∞-algebras equipped with complete descending filtrations. We prove that, under some mild conditions, an L∞ quasi-isomorphism U:L→L~ induces a weak equivalence between the Deligne-Getzler-Hinich (DGH) ∞-groupoids corresponding to L and L~, respectively. This paper may be considered as a modest addition to foundational paper [10] by Ezra Getzler.
Non-critically squeezed light via spontaneous rotational symmetry breaking
Creators: name: Navarrete-Benlloch, Carlos
name: Roldan, Eugenio
name: de Valcarcel, German J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically address squeezed light generation through the spontaneous breaking of the rotational invariance occuring in a type I degenerate optical parametric oscillator (DOPO) pumped above threshold. We show that a DOPO with spherical mirrors, in which the signal and idler fields correspond to first order Laguerre-Gauss modes, produces a perfectly squeezed vacuum with the shape of a Hermite-Gauss mode, within the linearized theory. This occurs at any pumping level above threshold, hence the phenomenon is non-critical. Imperfections of the rotational symmetry, due e.g. to cavity anisotropy, are shown to have a small impact, hence the result is not singular.
description: 4 pages, 1 figure, replaced with resubmitted version
title: Development of the Cold Urticaria Activity Score
Creators: name: Ahsan, Dalia Melina
name: Altrichter, Sabine
name: Gutsche, Annika
name: Bernstein, Jonathan A.
name: Altunergil, Tatjana
name: Brockstaedt, Maxi
name: Maurer, Marcus
name: Weller, Karsten
name: Terhorst‐Molawi, Dorothea
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: chronic inducible urticaria
subject: cold urticaria
subject: disease activity
subject: patient-reported outcome measures
subject: urticaria activity score
classificationCode: 610
subject: Medizin und Gesundheit

description: Background Cold urticaria (ColdU) is a form of inducible urticaria where cold induces wheals and/or angioedema. The burden of disease is high and linked to trigger thresholds, exposure, and avoidance. There are presently no validated patient-reported outcome measures (PROMs) to assess and monitor disease activity. Our objective was to develop a disease-specific activity score for ColdU that is easy to administer and evaluate. Methods A Cold Urticaria Activity Score (ColdUAS) questionnaire was developed, directed by PROM developing guidelines. After the generation of a conceptional framework, the item generation phase included the literature research on ColdU signs and symptoms and on comparable tools for similar diseases and 47 ColdU patient interviews. Subsequently, an impact analysis for content validity was performed. The final selection of items underwent expert review for face validity and cognitive debriefing. Results The ColdUAS, a self-administered questionnaire for the prospective assessment of disease activity in patients with ColdU, consists of 4 items: 1. the frequency and severity of the signs (wheals and/or angioedema), 2. the frequency and severity of the symptoms (e.g., itch and burn), 3. the exposure to specific triggers, and 4. the avoidance of these triggers. The recall period for each item is the last 24 h. Conclusions The ColdUAS is the first disease-specific PROM to assess ColdU disease activity. It may help to better assess patients' disease status in routine clinical practice as well as in clinical trials. Anchor-based approaches are currently used to validate the ColdUAS.
Kullback-Leibler distance as a measure of the information filtered from multivariate data
Creators: name: Tumminello, Michele
name: Lillo, Fabrizio
name: Mantegna, Rosario Nunzio
Publisher: name: arXiv
Year: 2007
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: We show that the Kullback-Leibler distance is a good measure of the statistical uncertainty of correlation matrices estimated by using a finite set of data. For correlation matrices of multivariate Gaussian variables we analytically determine the expected values of the Kullback-Leibler distance of a sample correlation matrix from a reference model and we show that the expected values are known also when the specific model is unknown. We propose to make use of the Kullback-Leibler distance to estimate the information extracted from a correlation matrix by correlation filtering procedures. We also show how to use this distance to measure the stability of filtering procedures with respect to statistical uncertainty. We explain the effectiveness of our method by comparing four filtering procedures, two of them being based on spectral analysis and the other two on hierarchical clustering. We compare these techniques as applied both to simulations of factor models and empirical data. We investigate the ability of these filtering procedures in recovering the correlation matrix of models from simulations. We discuss such an ability in terms of both the heterogeneity of model parameters and the length of data series. We also show that the two spectral techniques are typically more informative about the sample correlation matrix than techniques based on hierarchical clustering, whereas the latter are more stable with respect to statistical uncertainty.
description: 13 pages, 6 figures
Evolution of globular-cluster systems of ultra-diffuse galaxies due to dynamical friction in MOND gravity
Creators: name: Bílek, Michal
name: Zhao, Hongsheng
name: Famaey, Benoit
name: Müller, Oliver
name: Kroupa, Pavel
name: Ibata, Rodrigo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (Abridged) Dynamical friction can be used to distinguish Newtonian gravity and modified Newtonian dynamics (MOND) because it works differently in these frameworks. This concept, however, has yet to be explored very much with MOND. Previous simulations showed weaker dynamical friction during major mergers for MOND than for Newtonian gravity with dark matter. Analytic arguments suggest the opposite for minor mergers. In this work, we verify the analytic predictions for MOND by high-resolution $N$-body simulations of globular clusters (GCs) moving in isolated ultra-diffuse galaxies (UDGs). We test the MOND analog of the Chandrasekhar formula for the dynamical friction proposed by Sánchez-Salcedo on a single GC. We also explore whether MOND allows GC systems of isolated UDGs to survive without sinking into nuclear star clusters. The simulations are run using the adaptive-mesh-refinement code Phantom of Ramses. The mass resolution is $20\,M_\odot$ and the spatial resolution $50\,$pc. The GCs are modeled as point masses. Simulations including a single GC reveal that, as long as the apocenter of the GC is over about 0.5 effective radii, the Sánchez-Salcedo formula works excellently, with an effective Coulomb logarithm increasing with orbital circularity. Once the GC reaches the central kiloparsec, its sinking virtually stops, likely because of the core stalling mechanism. In simulations with multiple GCs, many of them sink toward the center, but the core stalling effect seems to prevent them from forming a nuclear star cluster. The GC system ends up with a lower velocity dispersion than the stars of the galaxy. By scaling the simulations, we extend these results to most UDG parameters, as long as these UDGs are not external-field dominated.
description: Accepted for publication in A&A, 17 pages, 13 figures, 2 tables
title: Preclinical efficacy in investigator's brochures: Stakeholders' views on measures to improve completeness and robustness
Creators: name: Haslberger, Martin
name: Schorr, Susanne Gabriele
name: Strech, Daniel
name: Haven, Tamarinde
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: early-phase clinical trials
subject: first-in-human
subject: institutional review board
subject: investigator's brochure
subject: regulatory science
subject: research ethics committee
subject: risk-benefit assessment
classificationCode: 610
subject: Medizin und Gesundheit

description: Aims Research ethics committees and regulatory agencies assess whether the benefits of a proposed early-stage clinical trial outweigh the risks based on preclinical studies reported in investigator's brochures (IBs). Recent studies have indicated that the reporting of preclinical evidence presented in IBs does not enable proper risk-benefit assessment. We interviewed different stakeholders (regulators, research ethics committee members, preclinical and clinical researchers, ethicists, and metaresearchers) about their views on measures to increase the completeness and robustness of preclinical evidence reporting in IBs. Methods This study was preregistered (https://osf.io/nvzwy/). We used purposive sampling and invited stakeholders to participate in an online semistructured interview between March and June 2021. Themes were derived using inductive content analysis. We used a strengths, weaknesses, opportunities and threats matrix to categorize our findings. Results Twenty-seven international stakeholders participated. The interviewees pointed to several strengths and opportunities to improve completeness and robustness, mainly more transparent and systematic justifications for the included studies. However, weaknesses and threats were mentioned that could undermine efforts to enable a more thorough assessment: The interviewees stressed that current review practices are sufficient to ensure the safe conduct of first-in-human trials. They feared that changes to the IB structure or review process could overburden stakeholders and slow drug development. Conclusion In principle, more robust decision-making processes align with the interests of all stakeholders and with many current initiatives to increase the translatability of preclinical research and limit uninformative or ill-justified trials early in the development process. Further research should investigate measures that could be implemented to benefit all stakeholders.
Single-spin asymmetries in the leptoproduction of transversely polarized Λ hyperons
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2015
Subjects: hep-ph

description: © 2015 The Authors. We analyze single-spin asymmetries (SSAs) in the leptoproduction of transversely polarized Λ hyperons within the collinear twist-3 formalism. We calculate both the distribution and fragmentation terms in two different gauges (lightcone and Feynman) and show that the results are identical. This is the first time that the fragmentation piece has been analyzed for transversely polarized hadron production within the collinear twist-3 framework. In lightcone gauge we use the same techniques that were employed in computing the analogous piece in p↑p→πX, which has become an important part to that reaction. With this in mind, we also verify the gauge invariance of the formulas for the transverse SSA in the leptoproduction of pions.
On Critical Infrastructure Protection and International Agreements
Creators: name: Christin, Nicolas
Publisher: name: Digital Repository at the University of Maryland
Year: 2011
Subjects: cyber attacks
infrastructure protection
critical networks

description: This paper evaluates the prospects for protecting critical social functions from “cyber” attacks carried out over electronic information networks. In particular, it focuses on the feasibility of devising international laws, conventions or agreements to deter and/or punish perpetrators of such attacks. First,it briefly summarizes existing conventions and laws, and explains to which technological issues they can apply. The paper then turns to a technical discussion of the threats faced by critical infrastructure. By distinguishing between the different types of attacks (theft of information, destructive penetration, denial of service, etc.) that can be conducted, and examining the role of collateral damages in information security, the paper identifies the major challenges in devising and implementing international conventions for critical infrastructure protection. It then turns to a practical examination of how these findings apply to specific instances of critical networks (power grids and water systems, financial infrastructure, air traffic control and hospital networks), and draws conclusions about potential remedies. A notable finding is that critical functions should be isolated from non-critical functions in the network to have a chance to implement viable international agreements; and that, given the difficulty in performing attack attribution, other relevant laws should be designed with the objective of reducing negative externalities that facilitate such attacks.
title: Acupuncture and osteopathic medicine for atopic dermatitis: a three-armed, randomized controlled explorative clinical trial
Creators: name: Rotter, Gabriele
name: Ahnert, Moritz W.
name: Geue, Anne V.
name: Icke, Katja
name: Binting, Sylvia
name: Tissen-Diabaté, Tatjana
name: Roll, Stephanie
name: Ortiz, Miriam
name: Reinhold, Thomas
name: Kass, Benjamin
name: Staab, Doris
name: Pfab, Florian
name: Willich, Stefan N.
name: Brinkhaus, Benno
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2022
Subjects: subject: acupuncture therapy
subject: adrenal cortex hormones
subject: dermatitis, atopic
subject: dermatologic agents
subject: osteopathic medicine
subject: treatment outcome
classificationCode: 610
subject: Medizin und Gesundheit

description: Background Patients with atopic dermatitis (AD) frequently use acupuncture (ACU) and osteopathic medicine (OM), although their therapeutic benefits are unclear. Aim To investigate the effectiveness of ACU and OM in patients with AD. Methods In a three‐armed, single‐centre, randomized controlled open explorative clinical trial, adult patients with AD received ACU, OM or no study intervention (control group; CG) plus routine care. Outcomes included disease severity (SCORing Atopic Dermatitis; SCORAD), itching intensity (visual analogue scale; VAS), frequency of topical corticosteroid (TCS) use over 7 days and cost‐effectiveness. Endpoints were analysed by analysis of covariance adjusted for the respective baseline value and TCS use. Results Overall, 121 patients (92 women, 29 men) with a mean ± SD age of 31.4 ± 10.5 years were randomized. After 12 weeks, the adjusted means (95% CI) for ACU, OM and control were, respectively, 22.3 (18.3–26.3), 26.4 (22.6–30.2) and 23.7 (19.9–27.5) for SCORAD (P = 0.32); 27.9 (19.5–36.4), 35.0 (26.9–43.0) and 42.3 (34.7–50.0) for VAS itching (P < 0.05); and 2.3 (0.8–3.9), 1.9 (0.4–3.5) and 4.3 (2.6–6.0), for TCS use (P = 0.10). ACU and OM were not cost‐effective compared with the CG. Conclusion Although no differences in disease severity were found, our findings indicate that ACU might reduce itching in patients with AD. Furthermore, ACU and OM showed a trend towards reducing TCS use.
Reducing the Threat of State-to-State Cyber Attack against Critical Infrastructure through International Norms and Agreements
Creators: name: Henry, Jamal
Publisher: name: Digital Repository at the University of Maryland
Year: 2010
Subjects: cyber attack
network failures
international agreements
system infrastructures

description: The global proliferation of networked computer systems within the public and private sectors presents an increased opportunity for malicious cyber attacks to disrupt the daily functions of governments, national emergency systems, the global economy, and our modern way of life. The potentially pandemic nature of network failures presents opportunities for states to work together to identify key infrastructure sectors of shared interest and formulate international norms and strategies to protect them from cyber attacks and prevent cascading failures within modern society.  Nation-states that share information infrastructure critical to modern social functions will have a vested interest in protecting these systems from cyber attacks while mitigating their own inclination to attack these same networks.

This paper outlines the state-to-state cyber threat to critical-system infrastructures and the role international agreements can play in limiting this threat. The paper has been structured as follows. It begins by defining a critical system and discussing the actors who pose threats to these systems and the motivations behind their decisions. This is followed by a detailed description of a hypothetical scenario that depicts the methods by which one state could attack another state’s critical infrastructure, to include the motivations behind the attack. In conclusion, it makes recommendations regarding the development of an international agreement designed to limit this specific type of attack.
On the discrete spectrum of spin-orbit Hamiltonians with singular interactions
Creators: name: Bruening, Jochen
name: Geyler, Vladimir
name: Pankrashkin, Konstantin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We give a variational proof of the existence of infinitely many bound states below the continuous spectrum for spin-orbit Hamiltonians (including the Rashba and Dresselhaus cases) perturbed by measure potentials thus extending the results of J.Bruening, V.Geyler, K.Pankrashkin: J. Phys. A 40 (2007) F113--F117.
description: 10 pages; to appear in Russian Journal of Mathematical Physics (memorial volume in honor of Vladimir Geyler). Results improved in this version