cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modeling the Redshift Evolution of the Normal Galaxy X-ray Luminosity Function
Creators: name: Tremmel, M.
name: Fragos, T.
name: Lehmer, B. D.
name: Tzanavaris, P.
name: Belczynski, K.
name: Kalogera, V.
name: Basu-Zych, A. R.
name: Farr, W. M.
name: Hornschemeier, A.
name: Jenkins, L.
name: Ptak, A.
name: Zezas, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Emission from X-ray binaries (XRBs) is a major component of the total X-ray luminosity of normal galaxies, so X-ray studies of high redshift galaxies allow us to probe the formation and evolution of X-ray binaries on very long timescales. In this paper, we present results from large-scale population synthesis models of binary populations in galaxies from z = 0 to 20. We use as input into our modeling the Millennium II Cosmological Simulation and the updated semi-analytic galaxy catalog by Guo et al. (2011) to self-consistently account for the star formation history (SFH) and metallicity evolution of each galaxy. We run a grid of 192 models, varying all the parameters known from previous studies to affect the evolution of XRBs. We use our models and observationally derived prescriptions for hot gas emission to create theoretical galaxy X-ray luminosity functions (XLFs) for several redshift bins. Models with low CE efficiencies, a 50% twins mass ratio distribution, a steeper IMF exponent, and high stellar wind mass loss rates best match observational results from Tzanavaris & Georgantopoulos (2008), though they significantly underproduce bright early-type and very bright (Lx > 10d41) late-type galaxies. These discrepancies are likely caused by uncertainties in hot gas emission and SFHs, AGN contamination, and a lack of dynamically formed Low-mass XRBs. In our highest likelihood models, we find that hot gas emission dominates the emission for most bright galaxies. We also find that the evolution of the normal galaxy X-ray luminosity density out to z = 4 is driven largely by XRBs in galaxies with X-ray luminosities between 10d40 and 10d41 erg/s.
description: Accepted into ApJ, 17 pages, 3 tables, 7 figures. Text updated to address referee's comments
Interdependency without Imperialism: Neville Callam’s Ecumenical Contributions
Creators: name: Harmon, Steven R.
Publisher: name: Journal of European Baptist Studies
Year: 2023

description: This article, originally presented as the presidential address for the annual meeting of the National Association of Baptist Professors of Religion Region-at-Large,1 explores the contributions to the ecumenical movement of Neville Callam, who served as General Secretary of the Baptist World Alliance from 2007 until 2017. The article treats Callam’s contributions to ecumenism in terms of the background of his own ecumenical formation, the ecumenical service of his ministerial career prior to his election as BWA General Secretary, his ecumenical leadership of the BWA, and the ecumenical theology articulated in his publications. The article characterises Callam’s ecumenical vision as one rooted in the ecclesial interdependence that marks Baptist congregational ecclesiology despite its tendencies toward a more radical congregational independence, but an interdependent ecumenism that resists an imperialism to which some approaches to ecumenical convergence are susceptible.
description: Journal of European Baptist Studies, Vol. 23 No. 1 (2023): Journal of European Baptist Studies
Unity in Translation: The Role of Translation in Building Up the Unity of the Body of Christ
Creators: name: Hunt, Rosa
Publisher: name: Journal of European Baptist Studies
Year: 2023

description: This is an article about the role that translation can play in building up the unity of the body of Christ. It rests on two fundamental assumptions: the first that Christianity is essentially a faith which has no existence independent of its translations; the second that the proclamation of the Christian message is truest to itself when expressed in the natural idiom of a culture. In this article, I examine the arguments supporting these assumptions. These fundamental theological axes are then related to a practical analysis of the power shifts which inevitably occur when translation of the Christian message occurs, with particular reference to Baptist congregations in Wales, and the potential for disunity generated by linguistic and cultural difference. This in turn leads to a consideration of what constitutes good practice in bilingual worship. I conclude that even in seemingly monoglot congregations, the social and linguistic background of individuals means that we are operating in an essentially multilingual and multicultural environment. There are two main ways of ensuring unity in such a situation — one is to impose a cultural and linguistic hegemony, and the second is to surrender control and seek to encourage the flourishing of multiple readings of the Christian message in line with the language and cultural idioms of those present. I suggest that the second way is truer to the model of translation which God demonstrated in the incarnation.
description: Journal of European Baptist Studies, Vol. 23 No. 1 (2023): Journal of European Baptist Studies
An improved model for the nonlinear velocity power spectrum
Creators: name: Jennings, Elise
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The velocity divergence power spectrum is a key ingredient in modelling redshift space distortion effects on quasi-linear and nonlinear scales. We present an improved model for the z=0 velocity divergence auto and cross power spectrum which was originally suggested by Jennings et al. 2011. Using numerical simulations we measure the velocity fields using a Delaunay tesselation and obtain an accurate prediction of the velocity divergence power spectrum on scales k < 1 hMpc^{-1}. We use this to update the model which is now accurate to 2% for both P_{θθ} and P_{θδ} at z=0 on scales k <0.7 hMpc^{-1} and k <0.5 hMpc^{-1} respectively. We find that the formula for the redshift dependence of the velocity divergence power spectra proposed by Jennings et al. 2011 recovers the measured z>0 P(k) to markedly greater accuracy with the new model. The nonlinear P_{θθ} and P_{θδ} at z =1 are recovered accurately to better than 2% on scales k<0.2 hMpc^{-1}. Recently it was shown that the velocity field shows larger differences between modified gravity cosmologies and ΛCDM compared to the matter field. An accurate model for the velocity divergence power spectrum, such as the one presented here, is a valuable tool for analysing redshift space distortion effects in future galaxy surveys and for constraining deviations from general relativity.
description: 5 pages, 2 figures, Accepted for publication in MNRAS
The Galactic Census of High- and Medium-mass Protostars. II. Luminosities and Evolutionary States of a Complete Sample of Dense Gas Clumps
Creators: name: Ma, Bo
name: Tan, Jonathan C.
name: Barnes, Peter J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: (Abridged) The Census of High- and Medium-mass Protostars (CHaMP) is the first large-scale (280 degree
description: Revisions have been made. Accepted to ApJ
Notes on teleportation in an expanding space
Creators: name: Feng, Jun
name: Yang, Wen-Li
name: Zhang, Yao-Zhong
name: Fan, Heng
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the quantum teleportation between a conformal detector Alice and an inertial detector Bob in de Sitter space in two schemes, (i) one uses free scalar modes and (ii) one utilizes cavity to store qubit. We show that the fidelity of the teleportation is degraded for Bob in both cases. While the fidelity-loss is due to the Gibbons-Hawking effect associated with his cosmological horizon in the scheme (i), the entanglement decreases in the scheme (ii) because the ability to entangle the cavities is reduced by the spacetime curvature. With a cutoff at Planck-scale, comparing with the standard Bunch-Davies choice, we also show that the possible Planckian physics cause extra modifications to the fidelity of the teleportation protocol in both schemes.
description: 6 pages, 2 figures, typos corrected. To appear in Phys. Lett. B
Fermionic impurities in the unquenched ABJM
Creators: name: Itsios, Georgios
name: Sfetsos, Konstadinos
name: Zoakos, Dimitrios
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study, in a holographic setup, the effect of adding localized fermionic impurities to the three-dimensional Chern-Simons-matter theories with unquenched fields in the fundamental representation of the gauge group. The impurities are introduced as probe D6-branes extending along the radial direction and wrapping a five-dimensional submanifold inside a squashed CP^3. We analyze the straight flux tube embeddings and study the corresponding fluctuation modes of the D6-branes. The conformal dimensions of the operators dual to such fluctuations depend non-trivially on the ratio of the flavor number to the Chern-Simon level of the unquenched ABJM.
description: 26 pages. v3: further corrections to match published version in JHEP
Quantum quenches, dynamical transitions and off-equilibrium quantum criticality
Creators: name: Sciolla, Bruno
name: Biroli, Giulio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Several mean-field computations have revealed the existence of an out of equilibrium dynamical transition induced by quantum quenching an isolated system starting from its symmetry broken phase. In this work we focus on the quantum phi^4 N-component field theory. By taking into account dynamical fluctuations at the Hartree-Fock level, corresponding to the leading order of the 1/N expansion, we derive the critical properties of the dynamical transition beyond mean-field theory (including at finite temperature). We find diverging time and length-scales, dynamic scaling and aging. Finally, we unveil a relationship with coarsening, an off-equilibrium dynamical regime that can be induced by quenching from the symmetric toward the symmetry broken phase.
description: 5 pages; revised version
Grassland restoration by local seed mixtures: New evidence from a practical 15‐year restoration study
Creators: name: Kaulfuß, Franziska
name: Rosbakh, Sergey
name: Reisch, Christoph
name: Hölzel, Norbert
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: local seed mixture, restoration, species diversity, species trait, species-rich grassland, vegetation composition
subject: 570 Biowissenschaften, Biologie
subject: 580 Pflanzen (Botanik)

description: Aim Local seed mixtures are frequently used to restore species-rich grasslands. However, it has hardly been tested whether local seed mixtures can actually be applied successfully in grassland restoration practice at larger scales and long-term. To close this gap, we report the results of a large-scale restoration study in which grasslands were restored about 15 years ago using different local seed mixtures. Location Bavaria, SE Germany. Methods To evaluate the efficacy of the local seed mixtures, we compared the species composition of seed mixtures and current vegetation. We then tested whether restoration success depends on site characteristics such as the size and shape (rectangle or stripe) of the grassland, restoration procedures such as topsoil removal, seed density and land use, or species habitat preferences for light, water and nutrients, and species life span (annual, perennial). Results n average, the current vegetation contained 62.4% of all species that were present in the local seed mixtures. Species from the local seed mixtures made up on average 69.1% of the total cover in the established vegetation, whereby the species composition of the local seed mixture and vegetation differed significantly from each other. The probability that a sown species would establish increased with seed density up to 300 seeds/m². Furthermore, habitat preferences significantly affected species establishment chances, with species requiring full illumination, dry and nutrient-poor soil being more successful during restoration, reflecting the high proportion of sites with topsoil removal prior to seeding in our study. Annual species had significantly lower establishment chances compared with their perennial counterparts. Conclusions Our study provides another piece of evidence that local seed mixtures can be applied successfully in large-scale grassland restoration projects. We provide several practical recommendations of how such practices can be further improved by using specific seed densities and creating new local seed mixtures using species that are ecologically more suitable to the restored sites.
Get Your Orcid: Stand Out From The Crowd
Creators: name: Erdmann, Christopher
name: Holmquist, Jane
name: Damon, James
Publisher: name: Zenodo
Year: 2014
Subjects: ORCID
Astronomy & Astrophysics

description: The "Get Your ORCID" flyer was crafted by Jane Holmquist, James Damon, and Christopher Erdmann, with assistance from Renée Hlozek (Princeton University, Department of Astrophysics), for ORCID outreach purposes to the astronomy community.
Scoping review for a research study on consumers' willingness to pay for milk and plant-based milk alternatives- Protocol
Creators: name: Jourdain, Damien
name: Madududu, Pamela
name: Ntuli, Herbert
name: Degieter, Margo
name: Di Minh Duc Tran,
name: De Steur, Hans
name: Karuaihe, Selma
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Economics
subject: Agricultural and Resource Economics
subject: Social and Behavioral Sciences
subject: Food Studies
subject: Agribusiness
subject: Business
subject: preferences
subject: Consumers
subject: attributes
subject: willingness-to-pay
subject: milk
subject: plant-based milk alternatives

description: The purpose of this scoping review is to accomplish five goals. First, the study identifies and evaluates the milk and plant-based milk alternative products and attributes explored in the willingness to pay studies. Second, the study will explore how much consumers are willing to pay for different milk attributes across geographic regions. Third, the key factors driving consumer willingness to pay for milk and plant-based milk alternatives will be explored. Fourth, different methods to elicit willingness to pay and analytical methods will be identified. Lastly, the study identifies potential research areas. The review aims to add to the existing literature by providing a more comprehensive understanding of the consumers' willingness to pay for milk and plant-based milk alternatives.
Evidence for Triplet Superconductivity in a Superconductor-Ferromagnet Spin Valve
Creators: name: Leksin, P. V.
name: Garif'yanov, N. N.
name: Garifullin, I. A.
name: Fominov, Ya. V.
name: Schumann, J.
name: Krupskaya, Y.
name: Kataev, V.
name: Schmidt, O. G.
name: Büchner, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the dependence of the superconducting (SC) transition temperature on the mutual orientation of magnetizations of Fe1 and Fe2 layers in the spin valve system CoO_x/Fe1/Cu/Fe2/Pb. We find that this dependence is nonmonotonic when passing from the parallel to the antiparallel case and reveals a distinct minimum near the orthogonal configuration. The analysis of the data in the framework of the SC triplet spin valve theory gives direct evidence for the long-range triplet superconductivity arising due to noncollinearity of the two magnetizations.
description: 5 pages (including 4 EPS figures). Version 2: final version as published in PRL
Enhancement of $h \to γγ$ by seesaw-motivated exotic scalars
Creators: name: Picek, Ivica
name: Radovcic, Branimir
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the role of seesaw motivated exotic scalars in loop-mediated Higgs decays. We consider a simple TeV-scale seesaw model built upon the fermionic quintuplet mediator in conjunction with the scalar quadruplet, where we examine portions of the model parameter space for which the contributions of charged components of the scalar quadruplet significantly increase the $h \to γγ$ decay rate. The most significant change in the diphoton width comes from a doubly charged scalar Φ^{--} which should be the lightest component in the scalar quadruplet. There is a mild suppression of the $h \to Z γ$ decay width by a factor 0.9 -- 0.7 in the part of the parameter space where the $h \to γγ$ decay width is enhanced by a factor 1.25 -- 2.
description: 12 pages, 3 figures, corresponds to published version
Maximum allowed solvent accessibilites of residues in proteins
Creators: name: Tien, Matthew Z.
name: Meyer, Austin G.
name: Sydykova, Dariya K.
name: Spielman, Stephanie J.
name: Wilke, Claus O.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biomolecules (q-bio.BM)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The relative solvent accessibility (RSA) of a residue in a protein measures the extent of burial or exposure of that residue in the 3D structure. RSA is frequently used to describe a protein's biophysical or evolutionary properties. To calculate RSA, a residue's solvent accessibility (ASA) needs to be normalized by a suitable reference value for the given amino acid; several normalization scales have previously been proposed. However, these scales do not provide tight upper bounds on ASA values frequently observed in empirical crystal structures. Instead, they underestimate the largest allowed ASA values, by up to 20%. As a result, many empirical crystal structures contain residues that seem to have RSA values in excess of one. Here, we derive a new normalization scale that does provide a tight upper bound on observed ASA values. We pursue two complementary strategies, one based on extensive analysis of empirical structures and one based on systematic enumeration of biophysically allowed tripeptides. Both approaches yield congruent results that consistently exceed published values. We conclude that previously published ASA normalization values were too small, primarily because the conformations that maximize ASA had not been correctly identified. As an application of our results, we show that empirically derived hydrophobicity scales are sensitive to accurate RSA calculation, and we derive new hydrophobicity scales that show increased correlation with experimentally measured scales.
description: 16 pages, 4 figures
The correlation between values-based leadership and economic success: An empirical evaluation within selected German cooperative banks and related policy implications
Creators: name: Muller, Stefan
Publisher: name: London South Bank University
Year: 2023

description: We are living in a society which is characterised by a permanent developing knowledge culture. The emergence of this megatrend among others, in combination with the financial crisis started in 2007 is the basis of the discussion about values and their impact on economic success. This study explores the links between values, which promote leadership, especially cooperative values, and economic success. The thesis is based on an online survey with all cooperative banks in Germany with an individual balance sheet totals over 1500 million Euro. These banks represent the greatest cooperative banks in Germany and their employees were invited to answer a questionnaire in order to analyse if cooperative values are part of everyday leadership and are perceived accordingly. The examined values were fairness, confidence, certainty, competence, reliability, individuality, common ground, respect, partnership, responsibility and solidarity. These values were set in correlation to financial figures: capital adequacy, asset quality, management efficiency, earnings quality and liquidity management. In addition to that the questionnaire of the online survey contained questions about performance appraisal systems including feedback systems for executives. The concept of values-based leadership and economic success measured in Key Performance Indicators formed the conceptual framework as presented in the literature review. Beyond that, this research follows the fundamental philosophy ‘critical theory’, because critical theory as a social theory is oriented toward critiquing society as a whole or like in this research project a part of our society. The study shows first small indications about the relationships between cooperative management values and business key figures. Correlation analysis was one of the main statistical analysis method of the study, because it measures the relationship between two items. In this case values and financial figures. In addition, various regression analyses were carried out. The aim of regression analysis is to determine the relationships between a dependent variable (financial figures) on the one hand and several explanatory variables (cooperative values) on the other. The elaborations in this study indicate that values-based leadership might have a positive influence on economic success. Organisations could be able to improve their results if they follow the concept of values-based leadership or even the cooperative values management style. The findings of this study might have important implications for those training, coaching or selecting executives, those intending to take a leadership position or who already are leaders, the organisations within values-based leadership is put into focus and for other researchers who want to build on the results. Thus, this study contributes to both practice and knowledge.
The static quark potential from a multilevel algorithm for the improved gauge action
Creators: name: Mykkanen, Anne
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize the multilevel algorithm of Luescher and Weisz to study SU(N) Yang-Mills theories with the tree-level improved gauge action. We test this algorithm, comparing its results with those obtained using the Wilson action, in SU(3) and SU(4) Yang-Mills theories in 2+1 and 3+1 dimensions. We measure the static quark potential and extract the Luescher term, predicted by the bosonic string theory.
description: 26 pages, 10 figures. V2: Restructured subsection 2.2, added references, version published in JHEP
title: Report of a GCFI workshop
title: GCFI Data-limited Assessment Workshop
titleType: AlternativeTitle
title: Evaluation of current status and application of data-limited stock assessment methods in the larger Caribbean Region
titleType: Subtitle
Creators: name: Cummings, Nancie
name: Karnauskas, Mandy
name: Michaels, William L.
name: Acosta, Alejandro
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Southeast Fisheries Science Center
Year: 2014
Subjects: subject: Fish stock assessment--Caribbean Area--Data processing--Congresses.
subject: Fishery management--Caribbean Area--Congresses.
subject: Fish stock assessment--Caribbean Area--Methodology--Evaluation--Congresses.

description: A special theme session and workshop on data-limited assessment methods were held at the 66th annual conference of the Gulf and Caribbean Fisheries Institute (GCFI) in Corpus Christi, Texas during November 4-8, 2013. Contributors to the GCFI special session provided presentations on a variety of analytical approaches that can be applied to data-limited stock assessments of living marine resources in the wider Caribbean region, and other similarly under-sampled locales (Executive Summary)
Ore User Guide - Resource Map Implementation In Json-Ld 0.9
Creators: name: Soiland-Reyes, Stian
name: Gamble, Matthew
name: Corcho, Oscar
name: Warner, Simeon
Publisher: name: Zenodo
Year: 2014
Subjects: json-ld
linked data
aggregation
ore
OAI-ORE

description: Open Archives Initiative Object Reuse and Exchange (OAI-ORE) defines standards for the description and exchange of aggregations of Web resources. OAI-ORE introduces the notion of a Resource Map, an RDF Graph which describes the Aggregation, the aggregated Resources of which it is composed, and the relationships between them (and/or the relationships between these and other resources).

Since a Resource Map is an RDF Graph, it can be serialized using any RDF syntax. This document outlines the use of one such syntax for the serialization of Resource Maps: JSON-LD.

This document is intended for implementers who have an understanding of ORE concepts and are responsible for the development of applications which generate or process Resource Maps using JSON-LD.
description: This document is available at
http://www.openarchives.org/ore/0.9/jsonld
A search for thermal X-ray signatures in Gamma-Ray Bursts I: Swift bursts with optical supernovae
Creators: name: Starling, R. L. C.
name: Page, K. L.
name: Pe'er, A.
name: Beardmore, A. P.
name: Osborne, J. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The X-ray spectra of Gamma-Ray Bursts can generally be described by an absorbed power law. The landmark discovery of thermal X-ray emission in addition to the power law in the unusual GRB 060218, followed by a similar discovery in GRB 100316D, showed that during the first thousand seconds after trigger the soft X-ray spectra can be complex. Both the origin and prevalence of such spectral components still evade understanding, particularly after the discovery of thermal X-ray emission in the classical GRB 090618. Possibly most importantly, these three objects are all associated with optical supernovae, begging the question of whether the thermal X-ray components could be a result of the GRB-SN connection, possibly in the shock breakout. We therefore performed a search for blackbody components in the early Swift X-ray spectra of 11 GRBs that have or may have associated optical supernovae, accurately recovering the thermal components reported in the literature for GRBs 060218, 090618 and 100316D. We present the discovery of a cooling blackbody in GRB 101219B/SN2010ma, and in four further GRB-SNe we find an improvement in the fit with a blackbody which we deem possible blackbody candidates due to case-specific caveats. All the possible new blackbody components we report lie at the high end of the luminosity and radius distribution. GRB 101219B appears to bridge the gap between the low-luminosity and the classical GRB-SNe with thermal emission, and following the blackbody evolution we derive an expansion velocity for this source of order 0.4c. We discuss potential origins for the thermal X-ray emission in our sample, including a cocoon model which we find can accommodate the more extreme physical parameters implied by many of our model fits.
description: 16 pages, 6 figures, accepted for MNRAS
Effective algorithm of analysis of integrability via the Ziglin's method
Creators: name: Salnikov, Vladimir
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37J30, 37J35

description: In this paper we continue the description of the possibilities to use numerical simulations for mathematically rigorous computer assisted analysis of integrability of dynamical systems. We sketch some of the algebraic methods of studying the integrability and present a constructive algorithm issued from the Ziglin's approach. We provide some examples of successful applications of the constructed algorithm to physical systems.
description: a figure added, version accepted to JDCS
$B_s\to D_s K$ as a Probe of CPT Violation
Creators: name: Kundu, Anirban
name: Nandi, Soumitra
name: Patra, Sunando Kumar
name: Soni, Amarjit
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We discuss some possible signals of CPT violation in the $B_s$ system that may be probed at the Large Hadron Collider (LHC). We show how one can construct combinations ofobservables coming from tagged and untagged decay rates of $B_s\to D_s^\pm K^\mp$ that can unambiguously differentiate between CPT violating and CPT conserving new physics (NP) models contributing in $B_s-\bar B_s$ mixing. We choose this particular mode as an illustrative example for two reasons: (i) In the Standard Model, there is only one decay amplitude, so it is easier to untangle any new physics; (ii) $B_s$ being a neutral meson, it is possible to unambiguously identify any sign of CPT violation that occurs only in mixing but not in decay. We define an observable which is useful to extract the CPT violating parameter in $B_s$ decay, and also discuss how far the results are applicable even if CPT violation is present in both mixing and decay.
description: v2: Discussions about LHCb reach added, final version to be published in Phys. Rev. D
Get Organized By Getting Orcidized!
Creators: name: Holmquist, Jane
Publisher: name: Zenodo
Year: 2014
Subjects: ORCID
ResearcherOD
Web of Science
Scopus Author ID

description: Slides in this presentation give step-by-step instructions for registering for an ORCID ID, a ResearcherID (used with Web of Science) and a Scopus Author ID.
Inverse Scattering and the Geroch Group
Creators: name: Katsimpouri, Despoina
name: Kleinschmidt, Axel
name: Virmani, Amitabh
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the integrability of gravity-matter systems in D=2 spatial dimensions with matter related to a symmetric space G/K using the well-known linear systems of Belinski-Zakharov (BZ) and Breitenlohner-Maison (BM). The linear system of BM makes the group structure of the Geroch group manifest and we analyse the relation of this group structure to the inverse scattering method of the BZ approach in general. Concrete solution generating methods are exhibited in the BM approach in the so-called soliton transformation sector where the analysis becomes purely algebraic. As a novel example we construct the Kerr-NUT solution by solving the appropriate purely algebraic Riemann-Hilbert problem in the BM approach.
description: 30 pages. v2: Typos corrected
Beyond y and μ: the shape of the CMB spectral distortions in the intermediate epoch, 1.5x10^4 < z < 2x10^5
Creators: name: Khatri, Rishi
name: Sunyaev, Rashid A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate numerical solutions and analytic approximations for the intermediate-type spectral distortions. Detection of a μ-type distortion (saturated comptonization) in the CMB will constrain the time of energy injection to be at a redshift 2x10^6> z > 2x10^5, while a detection of a y-type distortion (minimal comptonization) will mean that there was heating of CMB at redshift z< 1.5x10^4. We point out that the partially comptonized spectral distortions, generated in the redshift range 1.5x10^4 < z x 2x10^5, are much richer in information than the pure y and μ-type distortions. The spectrum created during this period is intermediate between y and μ-type distortions and depends sensitively on the redshift of energy injection. These intermediate-type distortions cannot be mimicked by a mixture of y and μ-type distortions at all frequencies and vice versa. The measurement of these intermediate-type CMB spectral distortions has the possibility to constrain precisely not only the amount of energy release in the early Universe but also the mechanism, for example, particle annihilation and Silk damping can be distinguished from particle decay. The intermediate-type distortion templates and software code using these templates to calculate the CMB spectral distortions for user-defined energy injection rate are made publicly available.
description: Minor changes, Published version. Intermediate-type templates and Mathematica code to calculate y,mu and intermediate-type distortions for user-defined redshift dependent energy injection are available for download at http://www.mpa-garching.mpg.de/~khatri/idistort.html
Bibliometric performance measures for the evaluation of NOAA R&D
Creators: name: Belter, Chris
name: Sen, Avery
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Oceanic and Atmospheric Research, Office of Policy, Planning and Evaluation
Year: 2014
Subjects: subject: Bibliometrics--United States
subject: Scholarly periodicals--Ratings and rankings--United States
subject: Research--United States--Methodology--Evaluation
subject: Research and development projects--United States--Evaluation

description: The purpose of this paper is to recommend the adoption of a suite of bibliometric indicators to assist in the evaluation of NOAA R&D. W e select a suite of indicators based on the recommendations and best practices established in the bibliometric literature and provide a framework for implementing these metrics in evaluation procedures. A suite of metrics for the evaluation of NOAA's R&D enterprise can be organized into four overarching themes: production, collaboration, topicality, and quality. We suggest that these indicators be adopted at multiple levels of the agency to not only evaluate the entire agency's publication output, but also that of NOAA's line offices and individual R&D units. This could lead to a more systematic adoption and use of bibliometric indicators beyond NOAA, at other US government agencies
Spin-Fluctuation-Driven Orbital Nematic Order in Ru-Oxides: Self-Consistent Vertex Correction Analysis for Two-Orbital Model
Creators: name: Ohno, Yusuke
name: Tsuchiizu, Masahisa
name: Onari, Seiichiro
name: Kontani, Hiroshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: To reveal the origin of the "nematic electronic fluid phase" in Sr$_3$Ru$_2$O$_7$, we apply the self-consistent vertex correction analysis to the ($d_{xz},d_{yz}$)-orbital Hubbard model. It is found that the Aslamazov-Larkin type vertex correction causes the strong coupling between spin and orbital fluctuations, which corresponds to the Kugel-Khomskii spin-orbital coupling in the local picture. Due to this mechanism, orbital nematic order with $C_2$ symmetry is induced by the magnetic quantum criticality in multiorbital systems, while this mechanism is ignored in the random-phase-approximation. The present study naturally explains the intimate relation between the magnetic quantum criticality and the nematic state in Sr$_3$Ru$_2$O$_7$ and Fe-based superconductors.
description: 5 pages, 3 figures
On the physical meaning of Sachs form factors and on the violation of the dipole dependence of G_E and G_M on Q^2
Creators: name: Galynskii, M. V.
name: Kuraev, E. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We discuss questions related to the interpretation of unexpected results of measurements of the proton form factors ratio G_E/G_M in the polarization experiments done in JLab in the region of 0.5 < Q^2 < 8.5 GeV^2. For this purpose, in the case of the hard scattering mechanism we calculated (in the leading approximation) the matrix elements of the proton current J^{\pm δ,δ}_p for the full set of spin combinations corresponding to the number of the spin-flipped quarks, which contribute to the proton transition without spin-flip (J^{δ,δ}_p) and with the spin-flip (J^{-δ,δ}_p). This set is: (0,1), (0,3), (2,1), (2,3), where the first number in parentheses is the number of the spin-flipped quarks, which contribute to the J^{δ,δ}_p, and the second one is the number of the spin-flipped quarks which contribute to the J^{-δ,δ}_p. For the sets of (0,1) and (2,3), we found that the ratio G_E/G_M ~ 1, and the form factors G_E and G_M behave for the set of (0,1) as G_E, G_M ~ 1/Q^6, and for the set of (2,3) as G_E, G_M ~ 1/Q^4. At the same time the set of (0,1) is realized for τ<< 1, and the set (2,3) for τ>> 1 (τ=Q^2/4m^2). This allows us to suppose that: 1) at the lower boundary of the experimental measurements of the ratio G_E/G_M not dipole dependence appears but the law of G_E, G_M ~ 1/Q^6; 2) the conditions for the observation of the dipole dependence in the experiments has not yet been achieved; 3) since for quarks J^{δ,δ}_q ~ 1 and J^{-δ,δ}_q ~ \sqrtτ, then the dipole dependence is realized when τ>> 1 in the case when the quark transitions with spin-flip are dominate.
description: 13 pages, 2 figures
Local multiresolution order in community detection
Creators: name: Ronhovde, Peter
name: Nussinov, Zohar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Community detection algorithms attempt to find the best clusters of nodes in an arbitrary complex network. Multi-scale ("multiresolution") community detection extends the problem to identify the best network scale(s) for these clusters. The latter task is generally accomplished by analyzing community stability simultaneously for all clusters in the network. In the current work, we extend this general approach to define local multiresolution methods, which enable the extraction of well-defined local communities even if the global community structure is vaguely defined in an average sense. Toward this end, we propose measures analogous to variation of information and normalized mutual information that are used to quantitatively identify the best resolution(s) at the community level based on correlations between clusters in independently-solved systems. We demonstrate our method on two constructed networks as well as a real network and draw inferences about local community strength. Our approach is independent of the applied community detection algorithm save for the inherent requirement that the method be able to identify communities across different network scales, with appropriate changes to account for how different resolutions are evaluated or defined in a particular community detection method. It should, in principle, easily adapt to alternative community comparison measures.
description: 19 pages, 11 figures
Correlation between the Higgs Decay Rate to Two Photons and the Muon g - 2
Creators: name: Giudice, Gian F.
name: Paradisi, Paride
name: Strumia, Alessandro
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of minimal supersymmetry with slepton mass universality we find that an enhancement in h \rightarrow gamma gamma by at least 40%, as hinted by present data, implies a deviation of the muon anomalous magnetic moment by exactly the right amount to explain the observed anomaly. The enhancement in h \rightarrow gamma gamma selects a light stau with large left-right mixing, a light Bino, and heavy higgsinos. The corresponding parameters are compatible with thermal dark matter, predict small deviations in h \rightarrow Z gamma and h \rightarrow tau tau, and measurable violations of lepton universality.
description: 16 pages, 3 figures. References and discussion of vacuum stability added
Answer to a question of Kolmogorov
Creators: name: Balka, Richárd
name: Elekes, Márton
name: Máthé, András
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 28A75, 26A16

description: More than 80 years ago Kolmogorov asked the following question. Let $E\subseteq \mathbb{R}^{2}$ be a measurable set with $λ^{2}(E)0$ a contraction $f\colon E\to \mathbb{R}^{2}$ such that $λ^{2}(f(E))\geq λ^{2}(E)-\varepsilon$ and $f(E)$ is a polygon? We answer this question in the negative by constructing a bounded, simply connected open counterexample. Our construction can easily be modified to yield the analogous result in higher dimensions.
description: 5 pages
Realising Haldane's vision for a Chern insulator in buckled lattices
Creators: name: Wright, Anthony R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Chern insulator displays a quantum Hall effect with no net magnetic field. Proposed by Haldane over 20 years ago, it laid the foundation for the fields of topological order, unconventional quantum Hall effects, and topological insulators. Despite enormous impact over two decades, Haldane's original vision of a staggered magnetic field within a crystal lattice has been prohibitively difficult to realise. In fact, in the original paper Haldane stresses his idea is probably merely a toy model. I show that buckled lattices with only simple hopping terms, within in-plane magnetic fields, can realise these models, requiring no exotic interactions or experimental parameters. As a concrete example of this very broad, and remarkably simple principle, I consider silicene, a honeycomb lattice with out-of-plane sublattice anisotropy, in an in-plane magnetic field, and show that it is a Chern insulator, even at negligibly small magnetic fields, which is analogous to Haldane's original model.
description: Final published version
A computational and experimental study of Irish orientated strand board in bending active gridshells
Creators: name: Collins, Matthew
Publisher: name: University of Limerick
Year: 2023
Subjects: Engineering

description: Timber gridshells are structures that involve sophisticated analysis, design and construction processes. Like shells generally, they can achieve large span to thickness ratios. However, in addition to the analysis, design and construction processes their material requirements (low material and section stiffness, high strength and few defects) often result in high selection and processing costs associated with solid timber. Engineered timber may be a viable alternative that avoids these costs. This study examines the suitability of an Irish engineered timber product, orientated strand board (OSB) for use in bending active gridshells. A precedent study identified the desirable material properties for bending active gridshells. The bending, torsion and compression strength and stiffness of an Irish OSB product was measured. A modified test approach was adopted to obtain the relevant material properties. Significant variations in both material properties and product thickness were observed and measured. The test results indicated that Irish OSB has good potential as a structural material for the proposed application. In order to verify the provisional conclusion of the material testing program a number of bending active OSB gridshells were designed, constructed and tested. The moment-rotation and load-deformation behaviour of two joint types used in the physical models were measured and the associated equivalent elastic constants determined. A computational model, MattGrid, was developed to predict the non-linear load-deformation behaviour and strength of the proposed designs. This model uses Dynamic Relaxation and is capable of modelling behaviour during both the form finding and subsequent in-service stages of the structure’s design life. It includes provision for a piecewise-linear material model, elastic boundary supports, bending active bracing and double layer construction. MattGrid was validated using numerical and analytical benchmarks and its predictions compared against experimental measurements. A series of single and double layer gridshells were designed and constructed using Irish OSB. The measured deformations under a series of load cases showed good agreement with the deformations predicted by MattGrid using the mean material properties.
Emergent Monopoles in Spin and Water Ices
Creators: name: Frost, Randall S.
Publisher: name: figshare
Year: 2015
Subjects: subject: Condensed Matter Physics
subject: FOS: Physical sciences
subject: 20203 Particle Physics

description: Theory for the presence of magnetic monopoles in spin and water ices based on the geometrical constraints of placing water molecules on an oxygen vacancy lattice. Predicts the following conditions for the presence of the monopole: most probable oxygen-oxygen separation distance of about 3.5 angstroms, and monopole frequency of 2.012 THz and wavelength of 149 microns. Theory should apply to a wide range of materials containing oxygen atoms.
Anisotropic but nodeless superconducting gap in the presence of spin density wave in iron-pnictide superconductor NaFe1-xCoxAs
Creators: name: Ge, Q. Q.
name: Ye, Z. R.
name: Xu, M.
name: Zhang, Y.
name: Jiang, J.
name: Xie, B. P.
name: Song, Y.
name: Zhang, C. L.
name: Dai, Pengcheng
name: Feng, D. L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The coexisting regime of spin density wave (SDW) and superconductivity in the iron pnictides represents a novel ground state. We have performed high resolution angle-resolved photoemission measurements on NaFe1-xCoxAs (x = 0.0175) in this regime and revealed its distinctive electronic structure, which provides some microscopic understandings of its behavior. The SDW signature and the superconducting gap are observed on the same bands, illustrating the intrinsic nature of the coexistence. However, because the SDW and superconductivity are manifested in different parts of the band structure, their competition is non-exclusive. Particularly, we found that the gap distribution is anisotropic and nodeless, in contrast to the isotropic superconducting gap observed in an SDW-free NaFe1-xCoxAs (x=0.045), which puts strong constraints on theory.
description: 5 pages, 4 figures + supplementary information