cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Application of random matrix theory to quasiperiodic systems
Creators: name: Schreiber, Michael
name: Grimm, Uwe
name: Roemer, Rudolf A.
name: Zhong, Jian-Xin
Publisher: name: arXiv
Year: 1998
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study statistical properties of energy spectra of a tight-binding model on the two-dimensional quasiperiodic Ammann-Beenker tiling. Taking into account the symmetries of finite approximants, we find that the underlying universal level-spacing distribution is given by the Gaussian orthogonal random matrix ensemble, and thus differs from the critical level-spacing distribution observed at the metal-insulator transition in the three-dimensional Anderson model of disorder. Our data allow us to see the difference to the Wigner surmise.
description: proceedings of "Percolation98", 5 Elsart pages with 5 figures, to be published in Physica A
title: Implementierung und Evaluation eines Schulungskonzepts zum Umgang mit Komplementärmedizin in der Krebs-Selbsthilfe
Creators: name: Jablotschkin, Martina
name: Bartsch, Hans Helge
name: Horneber, Markus
name: Weis, Joachim
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Die Inanspruchnahme von Verfahren der Komplementärmedizin (KM) ist bei Krebspatienten mit einer durchschnittlichen Rate von ca. 40 % weit verbreitet [ref:1]. Die Verfügbarkeit von zuverlässigen Informationen zu KM wird dabei seitens der Krebspatienten häufig[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 18. Deutscher Kongress für Versorgungsforschung (DKVF)
title: Partizipative Entwicklung und Implementierung einer multimodalen Intervention zur Förderung von Bewegungskompetenzen und körperlicher Aktivität von Menschen mit geistiger Behinderung
Creators: name: Bruland, Dirk
name: Latteck, Änne-Dörte
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Hintergrund: Erkrankungen und Beschwerden des Haltungs- und Bewegungsapparats zählen zu den häufigsten Leiden in Deutschland und verursachen hohe volkswirtschaftliche Kosten. Zugleich gehören Beeinträchtigungen der Bewegungsfähigkeit, z. B. der Gehfähigkeit zu den zentralen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 18. Deutscher Kongress für Versorgungsforschung (DKVF)
Pion and Rho Structure Functions from Lattice QCD
Creators: name: Best, C.
name: Göckeler, M.
name: Horsley, R.
name: Ilgenfritz, E. -M.
name: Perlt, H.
name: Rakow, P.
name: Schäfer, A.
name: Schierholz, G.
name: Schiller, A.
name: Schramm, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the lower moments of the deep-inelastic structure functions of the pion and the rho meson on the lattice. Of particular interest to us are the spin-dependent structure functions of the rho. The calculations are done with Wilson fermions and for three values of the quark mass, so that we can perform an extrapolation to the chiral limit.
description: 30pp, LaTeX2e with 15 eps figures using epsfig. Postscript file also available from ftp://ftp.th.physik.uni-frankfurt.de/pub/cbest/pionrho.ps or http://www.th.physik.uni-frankfurt.de/~cbest/pionrho.ps
Three essays on cryptocurrency
Creators: name: Hsieh, Sheng-Feng
Publisher: name: No Publisher Supplied
Year: 2021

description: This dissertation is composed of three essays that explore the fair value measurement for cryptocurrencies and the auditing of the crypto asset ecosystem. The first essay proposes a fair value measurement methodology for actively traded cryptocurrency pairs. The methodology is able to dynamically and automatically identify the principal market for the targeted cryptocurrency pair and determine its fair value, consistently following the accounting standards of fair value measurement under ASC 820 and IFRS 13. The fair value measures derived from the methodology, the unadjusted quoted prices, are classified as level 1 in the fair value hierarchy.The second essay, following the methodology from the first essay, designs another fair value measurement methodology for thinly traded cryptocurrency pairs. The methodology would dynamically identify the “optimal path” for the targeted cryptocurrency pair with other mainstream cryptocurrencies as intermediaries, supported by prior literature indicated that higher transaction volume would aggregate more private and public market information on equilibrium prices. The empirical demonstration from this methodology is able to generate more frequent and timely fair value measures for thinly traded cryptocurrencies that have few or even no direct trades to the reporting currencies. The methodology continues to follow ASC 820 and IFRS 13, and the fair value measures from this methodology would be classified as level 2 in the fair value hierarchy. The third essay proposes a comprehensive framework for auditing crypto asset ecosystem, elaborates on the new challenges and risks for audits of the crypto asset ecosystem, and discusses the auditing issues for entities involving in decentralized finance (DeFi) activities. The vigorously evolving crypto asset ecosystem brings not only challenges and risks but also new assurance opportunities to the auditing practice after completely identifying and addressing those critical issues and challenges.
Galileon-like vector fields
Creators: name: Petrov, Pavel
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct simple Lagrangians of vector fields which involve second derivatives, but nevertheless lead to second order field equations. These vector fields are, therefore, analogs of generalized Galileons. Our construction is given first in Minkowski space, and then generalizied to include dynamical gravity. We present examples of backgrounds that are stable and ghost-free despite the absence of gauge invariance. Some of these backgrounds violate the Null Energy Condition.
Magnetoresistance of a two-dimensional electron gas in a parallel magnetic field
Creators: name: Dolgopolov, V. T.
name: Gold, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The conductivity of a two-dimensional electron gas in a parallel magnetic field is calculated. We take into account the magnetic field induced spin-splitting, which changes the density of states, the Fermi momentum and the screening behavior of the electron gas. For impurity scattering we predict a positive magnetoresistance for low electron density and a negative magnetoresistance for high electron density. The theory is in qualitative agreement with recent experimental results found for Si inversion layers and Si quantum wells.
description: 4 pages, figures included, PDF only
Additional file 3 of Microbial community structure and composition is associated with host species and sex in Sigmodon cotton rats
Creators: name: Strickland, Britton A.
name: Patel, Mira C.
name: Shilts, Meghan H.
name: Boone, Helen H.
name: Kamali, Arash
name: Zhang, Wei
name: Stylos, Daniel
name: Boukhvalova, Marina S.
name: Rosas-Salazar, Christian
name: Yooseph, Shibu
name: Rajagopala, Seesandra V.
name: Blanco, Jorge C. G.
name: Das, Suman R.
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 3: Figure S3. Chao1 and Simpson alpha diversity indices of ear, nose, skin, and feces between S. fulviventer and S. hispidus. Statistical testing between each cotton rat species was performed using a Student’s t-test. Statistical testing between body sites is not shown (no significant differences across external sites). ns = P > 0.05, * = P ≤ 0.05, ** = P ≤ 0.01, *** = P ≤ 0.001, **** = P ≤ 0.0001.
Neutrino recoil force in electron-capture decay of polarized nuclei: measurement prospects and potential applications
Creators: name: Barabanov, A. L.
name: Titov, O. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Due to a directional asymmetry of neutrino emission caused by parity violation, a sample of radioactive atoms experiences a small recoil force from neutrino radiation accompanying electron capture by polarized nuclei. An expression for this force is obtained for the case of allowed nuclear transitions. Prospects to measure this force by the use of modern micromechanical devices are considered. Numerical estimates for the force are presented for a number of most suitable radioactive isotopes. Potential applications for the weak interaction studies are discussed including the possibility to search for hypothetical Lorentz invariance violation.
description: 13 pages, 2 figures, 3 tables
title: Developing a manual containing well-defined and theory-based behaviour change interventions for enhancing self-care of patients with heart failure
Creators: name: Whittal, Amanda
name: Herber, Oliver
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Background: Heart failure (HF) is a clinical and public health issue associated with morbidity, mortality and increased healthcare expenditure. Although international guidelines recommend on-going self-care as part of routine HF management, and despite evidence supporting positive outcomes related to[for full text, please go to the a.m. URL]
description: 18. Deutscher Kongress für Versorgungsforschung (DKVF)
MPEC 2025-D51 : 2025 DF1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 DF1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Extreme events in forced oscillatory media in 0, 1 and 2 dimensions
Creators: name: Barland, S.
name: Brambilla, M.
name: Columbo, L.
name: Garbin, B.
name: Gibson, C. J.
name: Giudici, M.
name: Gustave, F.
name: Masoller, C.
name: Oppo, G. -L.
name: Prati, F.
name: Rimoldi, C.
name: Rios, J. R.
name: Tredicce, J. R.
name: Tissoni, G.
name: Walczak, P.
name: Yao, A. M.
name: Zamora-Munt, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: One of the open questions in the field of optical rogue waves is the relevance of the number of spatial dimensions in which waves propagate. Here we review recent results on extreme events obtained in 0, 1 and 2 spatial dimensions in the specific context of forced oscillatory media. We show that some dynamical scenarii can be relevant from 0 to 2D while others can take place only in sufficiently large number of spatial dimensions.
Oscillation Frequencies for a Bose Condensate in a Triaxial Magnetic Trap
Creators: name: Cerboneschi, E.
name: Mannella, R.
name: Arimondo, E.
name: Salasnich, L.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We investigate the dynamics of a Bose condensate, interacting with either repulsive or attractive forces, confined in a fully anisotropic harmonic potential. The (3+1)-dimensional Gross-Pitaevskii equation is integrated numerically to derive the collective excitation frequencies, showing a good agreement with those calculated with a variational technique.
description: RevTex, 12 pages, 3 postscript figures, to be published in Physics Letters A
Coevolving Artistic Images Using OMNIREP
Creators: name: Sipper, Moshe
name: Moore, Jason H.
name: Urbanowicz, Ryan J.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: We have recently developed OMNIREP, a coevolutionary algorithm to discover both a representation and an interpreter that solve a particular problem of interest. Herein, we demonstrate that the OMNIREP framework can be successfully applied within the field of evolutionary art. Specifically, we coevolve representations that encode image position, alongside interpreters that transform these positions into one of three pre-defined shapes (chunks, polygons, or circles) of varying size, shape, and color. We showcase a sampling of the unique image variations produced by this approach.
Complete O(v^2) corrections to the static interquark potential from SU(3) gauge theory
Creators: name: Bali, Gunnar S.
name: Schilling, Klaus
name: Wachter, Armin
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For the first time, we determine the complete spin- and momentum-dependent order v^2 corrections to the static interquark potential from simulations of QCD in the valence quark approximation at inverse lattice spacings of 2-3 GeV. A new flavor dependent correction to the central potential is found. We report a 1/r^2 contribution to the long range spin-orbit potential V_1'. The other spin-dependent potentials turn out to be short ranged and can be well understood by means of perturbation theory. The momentum-dependent potentials qualitatively agree with minimal area law expectations. In view of spectrum calculations, we discuss the matching of the effective nonrelativistic theory to QCD as well as renormalization of lattice results. In a first survey of the resulting bottomonia and charmonia spectra we reproduce the experimental levels within average errors of 12.5 MeV and 22 MeV, respectively.
description: 54 pages REVTeX with 24 encapsuled ps figures
The phase diagram of quantum systems: Heisenberg antiferromagnets
Creators: name: Gianinetti, Pietro
name: Parola, Alberto
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A novel approach for studying phase transitions in systems with quantum degrees of freedom is discussed. Starting from the microscopic hamiltonian of a quantum model, we first derive a set of exact differential equations for the free energy and the correlation functions describing the effects of fluctuations on the thermodynamics of the system. These equations reproduce the full renormalization group structure in the neighborhood of a critical point keeping, at the same time, full information on the non universal properties of the model. As a concrete application we investigate the phase diagram of a Heisenberg antiferromagnet in a staggered external magnetic field. At long wavelengths the known relationship to the Quantum Non Linear Sigma Model naturally emerges from our approach. By representing the two point function in an approximate analytical form, we obtain a closed partial differential equation which is then solved numerically. The results in three dimensions are in good agreement with available Quantum Monte Carlo simulations and series expansions. More refined approximations to the general framework presented here and few applications to other models are briefly discussed.
description: 17 pages, 7 figures
Young massive clusters in the interacting LIRG Arp 299: evidence for the dependence of star cluster formation and evolution on environment
Creators: name: Randriamanakoto, Zara
name: Väisänen, Petri
name: Ryder, Stuart D.
name: Ranaivomanana, Princy
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Archival WFC3/UVIS imaging of Arp 299 (NGC 3690E + NGC 3690W) is retrieved to investigate the young massive cluster (YMC) population of this ongoing merger. We extract 2182 cluster candidates, including 1323 high confidence photometric sources. Multiband photometry is matched with Yggdrasil models to estimate the age, mass, and extinction of each cluster. A Schechter fit of the truncated cluster mass function results in a characteristic mass ${\rm M_{*} = 1.6 \times 10^6 M_{\odot}}$. Our results confirm that intensely star-forming galaxies such as Arp 299 host more massive clusters than quiescent dwarf and normal spirals. In the case of NGC 3690E, we find that the cluster masses decrease with an increasing galactocentric radius likely due to the gas density distribution. On the other hand, the fitted age distributions of a mass-limited sample suggest that YMCs of the western component undergo stronger disruption than those hosted by the eastern galaxy. This is in agreement with the properties of the underlying cluster luminosity functions: a clear truncation at high luminosities with slopes generally shallower by $\sim 0.3$ dex than the ones of the NGC 3690E. Finally, the derived cluster formation efficiency, $Γ\sim 19$ percent, indicates that Arp 299 has $\sim 3-5$ times more star formation happening in bound clusters compared to the cases of gas-poor spirals like NGC 2997 and NGC 4395. The merger generally follows the $Γ- $ star formation rate density relation from the literature. The YMC photometric study of Arp 299 thus reveals that both formation and disruption mechanisms of the star cluster population are most likely environment-dependent.
description: 27 pages, Accepted for publication in MNRAS
Quasi Exactly Solvable NxN-Matrix Schroedinger Operators
Creators: name: Brihaye, Yves
name: Hartmann, Betti
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: New examples of matrix quasi exactly solvable Schroedinger operators are constructed. One of them constitutes a matrix generalization of the quasi exactly solvable anharmonic oscillator, the corresponding invariant vector space is constructed explicitely. Also investigated are matrix generalizations of the Lame equation.
description: 16 latex pages, new results added
Strong decays of the $Ξ_b(6227)$ as a $Σ_b\bar{K}$ molecule
Creators: name: Huang, Yin
name: Xiao, Cheng-jian
name: Geng, Li-Sheng
name: He, Jun
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the strong decays of the newly observed $Ξ_b(6227)$ assuming that it is a pure $Σ_b\bar{K}$ molecular state. Considering four possible spin-parity assingments $J^P=1/2^{\pm}$ and $3/2^{\pm}$, the partial decay widths of the $Σ_b\bar{K}$ molecular state into $Λ_b\bar{K}$, $Ξ_bπ$, and $Ξ_b^{'}π$ final states through hadronic loops are evaluated with the help of the effective Lagrangians. In comparison with the LHCb data, the spin-party $1/2^-$ assignment is preferred while those of $J^P=1/2^{+}$ and $J^P=3/2^{\pm}$ are disfavored. In addition, we show that the two allowed decay modes $Λ_b\bar{K}$ and $Ξ_bπ$ of the $Ξ_b(6227)$, being a $S$-wave $Σ_b\bar{K}$ molecular state, have almost equal branching ratios, consistent with the data.
ESR Spectrometry of High-Temperature Superconductors with Temperature-Modulation-Based Thermoregulation
Creators: name: Aliev, M. K.
name: Alimov, G. R.
name: Kholbaev, I.
name: Muminov, T. M.
name: Olimov, B.
name: Sokolov, B. Yu.
name: Usmanov, R. R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A light-beam-assisted temperature-control system operating within a temperature range from 77 to 180 K is developed for investigating the absorption of electromagnetic waves by high-temperature superconductors in the vicinity of superconducting transition with an ESR spectrometer. The advantage of this system is the feasibility of modulating the temperature of a sample with a frequency of 80 Hz and amplitude of 0.01 -0.1 K. The rms temperature instability over a 5-min time interval is within 0.06 K, the temperature gradient in a sample is 0.01 K/mm for T=90 K, and the system relaxation time is 1 - 10 s. The microwave absorption peaks in the vicinity of the superconducting transition of an Y-Ba-Cu-O, single crystal were first measured at (the simultaneous application of magnetic and temperature modulations.
description: 9 pages, epsfig.sty, 2 figures (Eps)
Low-redshift lowest-metallicity star-forming galaxies in the SDSS DR14
Creators: name: Izotov, Y. I.
name: Guseva, N. G.
name: Fricke, K. J.
name: Henkel, C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a sample of low-redshift (z<0.133) candidates for extremely low-metallicity star-forming galaxies with oxygen abundances 12+logO/H<7.4 selected from the Data Release 14 (DR14) of the Sloan Digital Sky Survey (SDSS). Three methods are used to derive their oxygen abundances. Among these methods two are based on strong [OII]3727, [OIII]4959, and [OIII]5007 emission lines, which we call strong-line and semi-empirical methods. These were applied for all galaxies. We have developed one of these methods, the strong-line method, in this paper. This method is specifically focused on the accurate determination of metallicity in extremely low-metallicity galaxies and may not be used at higher metallicities with12+logO/H>7.5. The third, the direct Te method, was applied for galaxies with detected [OIII]4363 emission lines. All three methods give consistent abundances and can be used in combination or separately for selection of lowest-metallicity candidates. However, the strong-line method is preferable for spectra with a poorly detected or undetected [OIII]4363 emission line. In total, our list of selected candidates for extremely low-metallicity galaxies includes 66 objects.
description: 11 pages, 6 figures, accepted for publication in Astronomy and Astrophysics
Recalibrating Documentation: Reflections on 10 years of language documentation in the Tanzanian Rift
Creators: name: Harvey, Andrew
Publisher: name: Zenodo
Year: 2021
Subjects: Languages of Tanzania
Tanzanian Rift Valley Area
Gorwaa
Cushitic
Afroasiatic
Ihanzu
Isanzu
Bantu
Niger-Congo
Hadza
Language Isolate
Language Documentation
Reproducibility
Incorporation
Riddles

description: Language documentation has had a major impact on the trajectory of linguistics since the turn of the century, both in terms of what is considered linguistic data, as well as how that data is collected and used. Taking my work - 10 years of documentation in the Tanzanian Rift Valley Area - as a case study, this talk reflects on how my practice has been shaped by language documentation discourse, as well as how the local context has shaped how I do language documentation. Three central topics to be explored include the effect of a documentary approach on grammatical description, the emergence of literary genres from documentary materials, as well as the potential language documentation has for supporting the narrative sovereignty of marginalised speaker communities. Finally, the talk will provide some assessment on the future(s) of language documentation on the continent, and what language documentation in Africa must become to ultimately succeed. At the same time, the talk explores what collaboration can look like, actively pushing back against the idea of this work being the top-down pursuit of a "lone wolf" linguist. Examples will be provided as rich audiovisual material throughout, drawing on the verbal arts of the Gorwaa, Ihanzu, and Hadzabe people.
description: Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. Acknowledgement and citation: Harvey, Andrew. 2021. Recalibrating Documentation: Reflections on 10 years of language documentation in the Tanzanian Rift. Lecture given at the University of Bayreuth, Germany. 22.06.2021.
A monoclonal antibody-based colloidal gold immunochromatographic strip for the analysis of novobiocin in beef and chicken
Creators: name: Jiang, Hongtao
name: Xu, Xinxin
name: Song, Shanshan
name: Wu, Aihong
name: Liu, Liqiang
name: Kuang, Hua
name: Xu, Chuanlai
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Plant Biology

description: In this study, a monoclonal antibody (mAb) 1G5 against novobiocin with high sensitivity and specificity was prepared from a newly-designed hapten. According to the results of an indirect competitive enzyme-linked immunosorbent assay (ic-ELISA), the 50%-inhibitory concentration of the anti-novobiocin mAb was 6.9 ng/mL and the cross-reactivity was less than 0.1% to its analogues. Furthermore, a rapid colloidal gold immunochromatographic assay (ICA) was successfully developed for the determination of novobiocin in spiked samples. Two calibration curves were established respectively, for beef and chicken samples. The ICA results showed a visual colorimetric value of 50 ng/mL and a cut-off value of 300 ng/mL in beef samples. The ICA results of chicken samples were almost the same as that of beef. When quantitative detection was performed using a strip reader, the detection ranges for quantitative analysis in beef and chicken were 23.7–287.5 and 19.7–263.8 µg/kg respectively. Recoveries were between 82.7 and 95.3% for beef samples with the coefficient of variation (CV) ranging from 2.5 to 5.1%. Recoveries were in the range of 89.6–105.5% with the CV ranging from 2.9% to 6.3% for chicken samples. Importantly, these results from the ICA were highly consistent with the results obtained by LC-MS/MS. Therefore, this ICA could be used as an alternative means for the rapid determination of NOV in a large number of beef and chicken samples.
Non-Perturbative Evaluation of the Physical Classical Velocity in the Lattice Heavy Quark Effective Theory
Creators: name: Mandula, Jeffrey E.
name: Ogilvie, Michael C.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the lattice formulation of the Heavy Quark Effective Theory, the value of the classical velocity v, as defined through the separation of the 4-momentum of a heavy quark into a part proportional to the heavy quark mass and a residual part which remains finite in the heavy quark limit (P = Mv + p) is different from its value as it appears in the bare heavy quark propagator (S(p) = 1/vp). The origin of the difference, which is effectively a lattice-induced renormalization, is the reduction of Lorentz (or O(4)) invariance to (hyper)-cubic invariance. The renormalization is finite and depends specifically on the form of the discretization of the reduced heavy quark Dirac equation. For the Forward Time - Centered Space discretization, we compute this renormalization non-perturbatively, using an ensemble of lattices at beta = 6.1 provided by the Fermilab ACP-MAPS Collaboration. The calculation makes crucial use of a variationally optimized smeared operator for creating composite heavy-light mesons. It has the property that its propagator achieves an asymptotic plateau in just a few Euclidean time steps. For comparison, we also compute the shift perturbatively, to one loop in lattice perturbation theory. The non-perturbative calculation of the leading multiplicative shift in the classical velocity is considerably different from the one-loop estimate, and indicates that for the above parameters, v is reduced by about 10-13%.
description: 45 pages plus cover and abstract, with 6 embedded figures in a single postscript file, compressed with gzip and uuencoded and using uufiles; TeX file not available
Finite-Temperature Hole-Magnon Dynamics in an Antiferromagnet
Creators: name: Shen, Kaijun
name: Sun, Kewei
name: Gelin, Maxim F.
name: Zhao, Yang
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Employing the numerically accurate multiple Davydov Ansatz in combination with the thermo-field dynamics approach, we delve into interplay of the finite-temperature dynamics of holes and magnons in an antiferromagnet, which allows for scrutinizing previous predictions from self-consistent Born approximation while offering, for the first time, accurate finite-temperature computation of detailed magnon dynamics as a response and a facilitator to the hole motion. The study also uncovers pronounced temperature dependence of the magnon and hole populations, pointing to the feasibility of potential thermal manipulation and control of hole dynamics. Our methodology can be applied not only to the calculation of steady-state angular-resolved photoemission spectra, but also to the simulation of femtosecond terahertz pump-probe and other nonlinear signals for the characterization of antiferromagnetic materials.
description: 28 pages, 5 figures
Collision-assisted Zeeman cooling of neutral atoms
Creators: name: Ferrari, Gabriele
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a new method to cool gaseous samples of neutral atoms. The gas is confined in a non dissipative optical trap in the presence of an homogeneous magnetic field. The method accumulates atoms in the $m_F=0$ Zeeman sub-level. Cooling occurs via collisions that produce atoms in $m_F\neq 0$ states. Thanks to the second order Zeeman effect kinetic energy is transformed into internal energy and recycling of atoms is ensured by optical pumping. This method may allow quantum degeneracy to be reached by purely optical means.
description: 5 figures
Exploiting the Space Filling Curve Ordering of Particles in the Neighbour Search of Gadget3
Creators: name: Ragagnin, Antonio
name: Tchipev, Nikola
name: Bader, Michael
name: Dolag, Klaus
name: Hammer, Nicolay J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Performance (cs.PF)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Gadget3 is nowadays one of the most frequently used high performing parallel codes for cosmological hydrodynamical simulations. Recent analyses have shown t\ hat the Neighbour Search process of Gadget3 is one of the most time-consuming parts. Thus, a considerable speedup can be expected from improvements of the u\ nderlying algorithms. In this work we propose a novel approach for speeding up the Neighbour Search which takes advantage of the space-filling-curve particle ordering. Instead of performing Neighbour Search for all particles individually, nearby active particles can be grouped and one single Neighbour Search can be performed to obta\ in a common superset of neighbours. Thus, with this approach we reduce the number of searches. On the other hand, tree walks are performed within a larger searching radius. There is an optimal size of grouping that maximize the speedup, which we found by numerical experiments. We tested the algorithm within the boxes of the Magneticum project. As a result we obtained a speedup of $1.65$ in the Density and of $1.30$ in the Hydrodynamics computation, respectively, and a total speedup of $1.34.$
description: 17 pages, 6 figures, published at Parallel Computing (ParCo)
Understanding Specimen- and Grain-Size Effects on Nanoscale Plastic Deformation Mechanisms and Mechanical Properties of Polycrystalline Yttria-Stabilized Tetragonal Zirconia Nanopillars
Creators: name: Zhang, Ning
name: Zaeem, Mohsen Asle
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Specimen- and grain-size effects on nanoscale plastic deformation mechanisms and mechanical properties of polycrystalline yttria-stabilized tetragonal zirconia (YSTZ) nanopillars are studied by molecular dynamics simulations. Through uniaxial compression of YSTZ columnar nanopillars, intergranular and transgranular deformation mechanisms are investigated. Cooperative intergranular deformations including grain boundary sliding and migration, grain rotation, and amorphous phase formation at grain boundaries are revealed. Results also reveal formation of partial dislocations, which act as splitters of large grains and play a significant role in facilitating the rotation of grains, and consequently promote amorphous-to-crystalline phase transition in-between neighboring grains. An increase in free surface-to-volume ratio is found to be responsible for specimen size-induced softening phenomenon, where a decrease in Young modulus and strength is observed when the specimen width decreases from 30 nm to 10 nm. Also, a decrease in Young modulus and strength is revealed with the decrease of average grain size from 15 nm to 5 nm. Grain boundary density is identified to be responsible for the observed grain size-induced softening behavior in polycrystalline YSTZ nanopillars. A transition in dominant deformation mechanism is observed from amorphous phase formation at grain boundaries to a competition between intergranular grain boundary sliding and transgranular phase transformation. Furthermore, an inverse Hall-Petch relationship is revealed describing the correlation between grain size and strength for polycrystalline YSTZ nanopillars with grain sizes below 15 nm.
100 Years of the Quantum
Creators: name: Tegmark, Max
name: Wheeler, John Archibald
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: As quantum theory celebrates its 100th birthday, spectacular successes are mixed with outstanding puzzles and promises of new technologies. This article reviews both the successes of quantum theory and the ongoing debate about its consequences for issues ranging from quantum computation to consciousness, parallel universes and the nature of physical reality. We argue that modern experiments and the discovery of decoherence have have shifted prevailing quantum interpretations away from wave function collapse towards unitary physics, and discuss quantum processes in the framework of a tripartite subject-object-environment decomposition. We conclude with some speculations on the bigger picture and the search for a unified theory of quantum gravity.
description: This is the original (``director's cut'') version of the Scientific American article, with more text and inferior graphics. Sci. Am. links etc at http://www.hep.upenn.edu/~max/quantum.html
Triple-Refined Hybrid-Field Beam Training for mmWave Extremely Large-Scale MIMO
Creators: name: Chen, Kangjian
name: Qi, Chenhao
name: Dobre, Octavia A.
name: Li, Geoffrey Ye
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper investigates beam training for extremely large-scale multiple-input multiple-output systems. By considering both the near field and far field, a triple-refined hybrid-field beam training scheme is proposed, where high-accuracy estimates of channel parameters are obtained through three steps of progressive beam refinement. First, the hybrid-field beam gain (HFBG)-based first refinement method is developed. Based on the analysis of the HFBG, the first-refinement codebook is designed and the beam training is performed accordingly to narrow down the potential region of the channel path. Then, the maximum likelihood (ML)-based and principle of stationary phase (PSP)-based second refinement methods are developed. By exploiting the measurements of the beam training, the ML is used to estimate the channel parameters. To avoid the high computational complexity of ML, closed-form estimates of the channel parameters are derived according to the PSP. Moreover, the Gaussian approximation (GA)-based third refinement method is developed. The hybrid-field neighboring search is first performed to identify the potential region of the main lobe of the channel steering vector. Afterwards, by applying the GA, a least-squares estimator is developed to obtain the high-accuracy channel parameter estimation. Simulation results verify the effectiveness of the proposed scheme.
Artistic Object Recognition by Unsupervised Style Adaptation
Creators: name: Thomas, Christopher
name: Kovashka, Adriana
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Computer vision systems currently lack the ability to reliably recognize artistically rendered objects, especially when such data is limited. In this paper, we propose a method for recognizing objects in artistic modalities (such as paintings, cartoons, or sketches), without requiring any labeled data from those modalities. Our method explicitly accounts for stylistic domain shifts between and within domains. To do so, we introduce a complementary training modality constructed to be similar in artistic style to the target domain, and enforce that the network learns features that are invariant between the two training modalities. We show how such artificial labeled source domains can be generated automatically through the use of style transfer techniques, using diverse target images to represent the style in the target domain. Unlike existing methods which require a large amount of unlabeled target data, our method can work with as few as ten unlabeled images. We evaluate it on a number of cross-domain object and scene classification tasks and on a new dataset we release. Our experiments show that our approach, though conceptually simple, significantly improves the accuracy that existing domain adaptation techniques obtain for artistic object recognition.
The effects of status motives on consumer behavior
Creators: name: Jones, Aziza C.
Publisher: name: No Publisher Supplied
Year: 2021

description: Humans possess a fundamental motivation to signal social status, which has been defined as a higher perceived position compared to others that garners an individual more respect and admiration (Bellezza, Gino, and Keinan 2014; Dubois and Ordabayeva 2015; Dubois, Rucker, and Galinsky 2012). Attaining and signaling high social status is an important, fundamental human motivation that can affect consumer behavior (Bird et al. 2005; Bird, Smith, and Bird 2001; Durante and Griskevicius 2016). The current dissertation contributes to the literature on the antecedents and downstream consequences of status-signaling motivations. Although the majority of the literature on status signaling suggests that such motivations enhance conspicuous indulgence (e.g., spending to signal wealth), Essay 1 demonstrates that status motives can lead to displays of self-control (e.g., choices of healthier foods and self-control enhancing technologies instead of indulgent foods and entertainment technologies). This finding is important because consumers often struggle to engage in self-control (Brendl, Markman, and Messner 2003), and this work highlights one motivation, status signaling, that consumers can use to prompt such behavior. Furthermore, this finding helps marketers understand the nuance in using status-signaling appeals to sell non-luxury products, which may ultimately increase their sales.Essay 2 introduces a novel antecedent to status signaling. Specifically, it demonstrates that parenthood predicts status-signaling behavior, in that parents are more likely than non-parents to engage in conspicuous (vs. inconspicuous) luxury consumption. This occurs in part because parents believe that their social status will impact their living children. This research contributes to a growing literature on the cognitive processes behind the consumption behaviors of parents. The findings in this essay are an important addition to extant literature because parents are assumed to be warm, protective, helpful, and generous (Hodges and Park 2013) – traits that seem at odds with a desire for conspicuous consumption, which is often born out of a desire for personal gain (Dubois and Ordabayeva 2015; Lee and Shrum 2012; Torelli, Monga, and Kaikati 2012). By highlighting this novel, counterintuitive antecedent to status signaling, this work also reveals how firms may better anticipate parents’ product preferences.
From 2D to 3D: graphene moulding for transparent and flexible probes
Creators: name: Lee, Martin
name: Vuong, Thai-An
name: Whiteway, Eric
name: Capaldi, Xavier
name: Zhang, Yuning
name: Reisner, Walter
name: Ruiz-Vargas, Carlos
name: Hilke, Michael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Chemical vapor deposition (CVD) has been widely adopted as the most scalable method to obtain single layer graphene. Incorporating CVD graphene in planar devices can be performed via well established wet transfer methods or thermal adhesive release. Nevertheless, for applications involving 3D shapes, methods adopted for planar surface provide only a crude solution if a continuous, tear-free, wrinkle-free graphene layer is required. In this work, we present the fabrication and characterization of PDMS-supported 3D graphene probes. To accommodate 3D geometries, we perform CVD on catalysts possessing a non-trivial 3D topology, serving to mold the grown graphene to a final non-trivial 3D shape. This advance overcomes challenges observed in standard transfer processes that can result in uneven coverage, wrinkles and tears. To demonstrate the potential of our new transfer approach, we apply it to fabricate graphene electrical probes. Graphene, due to its flexibility, transparency and conductivity, is an ideal material with which to replace conventional metal based probes. In particular, with a contact resistance in the order of tens of kOhm, these graphene probes may find applications, such as in electrophysiology studies.
description: 5 pages
Scaling near Quantum Chaos Border in Interacting Fermi Systems
Creators: name: Song, Pil Hun
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The emergence of quantum chaos for interacting Fermi systems is investigated by numerical calculation of the level spacing distribution $P(s)$ as function of interaction strength $U$ and the excitation energy $ε$ above the Fermi level. As $U$ increases, $P(s)$ undergoes a transition from Poissonian (nonchaotic) to Wigner-Dyson (chaotic) statistics and the transition is described by a single scaling parameter given by $Z = (U ε^α-u_0) ε^{1/2ν}$, where $u_0$ is a constant. While the exponent $α$, which determines the global change of the chaos border, is indecisive within a broad range of $0.9 \sim 2.0$, finite value of $ν$, which comes from the increase of the Fock space size with $ε$, suggests that the transition becomes sharp as $ε$ increases.
description: 4 pages, 4 figures, to appear in Phys. Rev. E (Rapid Communication)
Impact of Yukawa-like dimension-5 operators on the Georgi-Machacek model
Creators: name: Banerjee, Avik
name: Bhattacharyya, Gautam
name: Kumar, Nilanjana
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the effects of including Yukawa-like dimension-5 operators in the Georgi-Machacek model where the Standard Model is augmented with triplet scalars. We focus only on the charged Higgs sector and investigate the constraints arising from radiative B-meson decays, neutral B-meson mixing and precision measurement of Zbb vertex. We observe that the inclusion of the dimension-5 operators causes substantial alteration of the limits on the charged Higgs masses and the vacuum expectation value of the triplets, derived otherwise using only the dimension-4 operators.
description: 11 pages, 2 captioned figures, minor changes in text, to appear in Phys. Rev. D
The Eta-Nucleon Scattering Length and Effective Range
Creators: name: Green, A. M.
name: Wycech, S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The coupled eta N, pi N system is described by a K-matrix method. The parameters in this model are adjusted to get an optimal fit to pi N -> pi N, pi N -> eta N and gamma N -> eta N data in an energy range of about 100MeV each side of the eta threshold. In the notation T^(-1)+iq_(eta) = 1/a + (r_0)/2 q^2_(eta) + s q^4_(eta), q_(eta) being the momentum in the eta N center-of-mass, the resulting effective range parameters for eta N scattering are found to be a(fm) = 0.75(4)-i0.27(3), r_0(fm) = -1.50(13)-i0.24(4) and s(fm^3) = -0.10(2)-i0.01(1)
description: 14 pages with two eps figures
Calibration of the DAMPE Plastic Scintillator Detector and its on-orbit performance
Creators: name: Ding, Meng
name: Zhang, Yapeng
name: Zhang, Yong-Jie
name: Wang, Yuan-Peng
name: Dong, Tie-Kuang
name: De Benedittis, Antonio
name: Bernardini, Paolo
name: Fang, Fang
name: Li, Yao
name: Liu, Jie
name: Ma, Peng-Xiong
name: Sun, Zhi-Yu
name: Gallo, Valentina
name: Vitillo, Stefania
name: Wang, Zhao-Min
name: Yu, Yu-Hong
name: Yue, Chuan
name: Yuan, Qiang
name: Zhou, Yong
name: Zhang, Yun-Long
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: DArk Matter Particle Explorer (DAMPE) is a space-borne apparatus for detecting the high-energy cosmic-rays like electrons, $γ$-rays, protons and heavy-ions. Plastic Scintillator Detector (PSD) is the top-most sub-detector of the DAMPE. The PSD is designed to measure the charge of incident high-energy particles and it also serves as a veto detector for discriminating $γ$-rays from charged particles. In this paper, PSD on-orbit calibration procedure is described, which includes five steps of pedestal, dynode correlation, response to minimum-ionizing particles (MIPs), light attenuation function and energy reconstruction. A method for reconstructing the charge of incident high energy cosmic-ray particles is introduced. The detection efficiency of each PSD strip is verified to be above 99.5%, the total efficiency of the PSD for charged particles is above 99.99%.
description: 11 pages, 16 figures, Submitted to Research in Astronomy and Astrophysics (RAA)