cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Conditions needed to re-induce lag phase in Salmonella exposed to dynamic temperatures
Creators: name: Wang, Megan
Publisher: name: No Publisher Supplied
Year: 2023

description: Predictive models are used to develop U.S. food safety guidance for power outages, when foods requiring refrigeration are exposed to fluctuating temperatures that could allow pathogen overgrowth. In such situations, retail grocers discard large quantities of affected products. The accuracy of current mathematical models for bacteria, however, may be compromised by the challenge of representing lag phase. Microorganisms undergo lag when encountering new or unfavorable conditions, including low temperatures. Dynamic temperature conditions that will re-induce lag in bacteria have been largely uninvestigated. It is possible that models generated by ComBase, a widely-used predictive modeling program involved in creating government food safety guidelines, are quite fail-safe for pathogen growth in refrigerated foods exposed to fluctuating temperatures, but the scenario remains untested. This research aimed to identify dynamic temperature conditions that would re-induce lag in Salmonella and to validate ComBase models for Salmonella exposed to dynamic temperatures. A cocktail of Salmonella serotypes Copenhagen, Montevideo, Typhimurium, Saintpaul, and Heidelberg was inoculated into tryptic soy broth and exposed to six temperature cycles in a programmable water bath. This was repeated for the serotypes individually. Cycles began at 1 or 5 °C and increased linearly to 37 °C over 2.5 hours, then returned to 1 or 5 °C over another 2.5 hours. At the end of each cycle, samples were held at 1 or 5 °C for 24, 48, or 96 hours. Bias and accuracy factor calculations revealed that ComBase models were fail-safe for Salmonella under the temperature conditions tested. Mean Salmonella concentrations were compared using ANOVAs with Tukey’s HSD tests. Salmonella growth was significantly (α = 0.05) reduced with 96-hour holding at 1 or 5 °C due to re-induction of lag phase in both the cocktail and individual serotypes. Re-induction of lag was not observed with 24- and 48-hour holding times. These results suggest that ComBase models are fail-safe for Salmonella in foods experiencing fluctuating temperatures. Adjustments to these models to account for re-induced lag in dynamic temperature situations and corresponding revision of food safety guidance could reduce the amount of food discarded by retailers due to loss of temperature control during power outages.
TeV Muons in Hadronic Showers
Creators: name: Lipari, P.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: {}From the study of the multiple muon events in deep underground detectors, it is possible to extract information about the spectrum and composition of the primary cosmic rays. In this work the number of TeV muons produced by a primary cosmic ray of a given energy and zenith angle is computed using analytic and montecarlo methods, for a family of simplified models as description of the properties of hadronic interactions. The effects of the uncertainties in our knowledge of the hadronic cross sections in the calculation of TeV muons are discussed.
description: standard latex, 17 pages + 16 figures (not included available on request); preprint 956, Dipartimento di Fisica Universita' di Roma "La Sapienza", and INFN sezione di Roma
Electromagnetic Dissociation of Nuclei in Heavy-Ion Collisions
Creators: name: Benesh, C. J.
name: Friar, J. L.
Publisher: name: arXiv
Year: 1992
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Large discrepancies have been observed between measured Electromagnetic Dissociation(ED) cross sections and the predictions of the semiclassical Weizäcker-Williams-Fermi(WWF) method. In this paper, the validity of the semiclassical approximation is examined. The total cross section for electromagnetic excitation of a nuclear target by a spinless projectile is calculated in first Born approximation, neglecting recoil. The final result is expressed in terms of correlation functions and convoluted densities in configuration space. The result agrees with the WWF approximation to leading order(unretarded electric dipole approximation), but the method allows an analytic evaluation of the cutoff, which is determined by the details of the electric dipole transition charge density. Using the Goldhaber-Teller model of that density, and uniform charge densities for both projectile and target, the cutoff is determined for the total cross section in the nonrelativistic limit, and found to be smaller than values currently used for ED calculations. In addition, cross sections are calculated using a phenomenological momentum space cutoff designed to model final state interactions. For moderate projectile energies, the calculated ED cross section is found to be smaller than the semiclassical result, in qualitative agreement with experiment.
description: 28 pages
Force appropriation of nonlinear structures
Creators: name: Renson, L.
name: Hill, T. L.
name: Ehrhardt, D. A.
name: Barton, D. A. W.
name: Neild, S. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Nonlinear normal modes (NNMs) are widely used as a tool for developing mathematical models of nonlinear structures and understanding their dynamics. NNMs can be identified experimentally through a phase quadrature condition between the system response and the applied excitation. This paper demonstrates that this commonly-used quadrature condition can give results that are significantly different from the true NNM, in particular when the excitation applied to the system is limited to one input force, as is frequently used in practice. The system studied is a clamped-clamped cross beam with two closely-spaced modes. This paper shows that the regions where the quadrature condition is (in)accurate can be qualitatively captured by analysing transfer of energy between the modes of the system, leading to a discussion of the appropriate number of input forces and their locations across the structure.
description: 24 pages, 13 figures
Gamma-Ray Bursts as the Death Throes of Massive Binary Stars
Creators: name: Narayan, Ramesh
name: Paczyński, Bohdan
name: Piran, Tsvi
Publisher: name: arXiv
Year: 1992
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is proposed that gamma-ray bursts are created in the mergers of double neutron star binaries and black hole neutron star binaries at cosmological distances. Bursts with complex profiles and relatively long durations are the result of magnetic flares generated by the Parker instability in a post-merger differentially-rotating disk. Some bursts may also be produced through neutrino-antineutrino annihilation into electrons and positrons. In both cases, an optically thick fireball of size $\sles\ 100$ km is initially created, which expands ultrarelativistically to large radii before radiating. Several previous objections to the cosmological merger model are eliminated. It is predicted that $γ$-ray bursts will be accompanied by a burst of gravitational radiation from the spiraling-in binary which could be detected by LIGO.
description: 14 pages
Superconducting transition temperatures in the electronic and magnetic phase diagrams of Sr2VFeAsO3-delta, a superconductor
Creators: name: Tojo, Yujiro
name: Shibuya, Taizo
name: Nakamura, Tetsuro
name: Shoji, Koichiro
name: Fujioka, Hirotaka
name: Matoba, Masanori
name: Yasui, Shintaro
name: Itoh, Mitsuru
name: Iimura, Soshi
name: Hiramatsu, Hidenori
name: Hosono, Hideo
name: Hirai, Shigeto
name: Mao, Wendy
name: Kitao, Shinji
name: Seto, Makoto
name: Kamihara, Yoichi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We elucidate the magnetic phases and superconducting transition temperatures (Tc) in Sr2VFeAsO3-delta (21113V), an iron-based superconductor with a thick-blocking layer fabricated from a perovskite-related transition metal oxide. At low temperatures (T < 37.1 K), 21113V exhibited a superconducting phase in the range 0.031 =< delta =< 0.145 and an antiferromagnetic (AFM) iron sublattice in the range 0.267 =< delta =< 0.664. Mixed-valent vanadium exhibited a dominant AFM phase in 0.031 =< delta =< 0.088, and a partial ferrimagnetic (Ferri.) phase in the range 0.124 =< delta =< 0.664. The Ferri. phase was the most dominant at a delta value of 0.267, showing an AFM phase of Fe at T < 20 K. Increasing the spontaneous magnetic moments reduced the magnetic shielding volume fraction due to the superconducting phase. This result was attributed to the magnetic phase of vanadium, which dominates the superconductivity of Fe in 21113V. The Tc-delta curve showed two maxima. The smaller and larger of Tc maxima occurred at delta = 0.073 and delta = 0.145, respectively; the latter resides on the phase boundary between AFM and the partial Ferri. phases of vanadium. 21113V is a useful platform for verifing new mechanisms of Tc enhancement in iron-based superconductors.
description: 34 pages, 10 figures, 2 tables, supplement information with 11 pages, 8 figures, 3 tables. accepted for publication, J. Phys.: Condens. Matter, Updated manuscript contains More references and readability. See http://iopscience.iop.org/article/10.1088/1361-648X/aaf7e0
Stripe Formation in Fermionic Atoms on 2-D Optical Lattice inside a Box Trap: DMRG Studies for Repulsive Hubbard Model with Open Boundary Condition
Creators: name: Machida, M.
name: Okumura, M.
name: Yamada, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We suggest that box shape trap enables to observe intrinsic properties of the repulsive Hubbard model in a fixed doping in contrast to the harmonic trap bringing about spatial variations of atom density profiles. In order to predict atomic density profile under the box trap, we apply the directly-extended density-matrix renormalization group method to 4-leg repulsive Hubbard model with the open boundary condition. Consequently, we find that stripe formation is universal in a low hole doping range and the stripe sensitively changes its structure with variations of $U/t$ and the doping rate. A remarkable change is that a stripe formed by a hole pair turns to one by a bi-hole pair when entering a limited strong $U/t$ range. Furthermore, a systematic calculation reveals that the Hubbard model shows a change from the stripe to the Friedel like oscillation with increasing the doping rate.
Tronquée Solutions of the Third and Fourth Painlevé Equations
Creators: name: Xia, Xiaoyue
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: Recently in a paper by Lin, Dai and Tibboel, it was shown that the third and fourth Painlevé equations have tronquée and tritronquée solutions. We obtain global information about these tronquée and tritronquée solutions. We find their sectors of analyticity, their Borel summed representations in these sectors as well as the asymptotic position of the singularities near the boundaries of the analyticity sectors. We also correct slight errors in the paper mentioned.
Phenomenology of $B_s$ Decays
Creators: name: Blasi, P.
name: Colangelo, P.
name: Paver, G. Nardulli AND N.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the QCD sum rules technique we study several aspects of the phenomenology of the b-flavoured strange meson $B_s^0$. In particular, we evaluate the mass of the particle, the leptonic constant and the form factors of the decays $\overline {B_s^0} \to D^{+}_s \ell^- \barν$, $\overline {B_s^0} \to D^{*+}_s \ell^- \barν$, $\overline {B_s^0} \to K^{*+} \ell^- \barν$. We also calculate, in the factorization approximation, a number of two-body non leptonic $\overline {B_s^0}$ decays.
description: 19 pages, 2 figures (not included) available upon request, LaTex, BARI-TH/93-139, UTS-DFT-93-14
On the Crossing Spanning Tree Problem
Creators: name: Bilo, Vittorio
name: Goyal, Vineet
name: Ramamoorthi Ravi
name: Mohit  Singh
Publisher: name: Carnegie Mellon University
Year: 1983
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Given an undirected n-node graph and a set c of m cuts, the minimum crossing spanning tree is a spanning tree which minimizes the maximum crossing of any cut in c where the crossing of a cut is the number of edges in the intersection of this cut and the tree. This problem finds applications in fields as diverse as Computational Biology and IP Routing Table Minimization. We show that a greedy algorithm gives an O(rlog n) approximation for the problem where any edge occurs in at most r cuts. We then demonstrate that the problem remains NP-hard even when G is complete. For the latter case, we design a randomized algorithm that gives a tree T with crossing O((log m+log n) sdot( OPT+ log n)) w.h.p., where OPT is the minimum crossing of any tree. Our greedy analysis extends the traditional one used for set cover. The randomized algorithm rounds a LP relaxation of a corresponding subproblem in stages.
title: ADCO, Ordre cistercien et abbaye de Cîteaux : comptes pour l'ordre (1337-1347), comptes du boursier (1377-1402) (11 H 1160), f. 00351
Creators: name: de la Côte-d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2017
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: comptes
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Ordre cistercien et abbaye de Cîteaux : comptes pour l'ordre (1337-1347), comptes du boursier (1377-1402), Archives départementales de la Côte-d'Or, (11 H 1160). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Ordre cistercien et abbaye de Cîteaux : comptes pour l'ordre (1337-1347), comptes du boursier (1377-1402), Archives départementales de la Côte-d'Or, (11 H 1160), f. 00351, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Secretary problem: graphs, matroids and greedoids
Creators: name: Kordecki, Wojciech
Publisher: name: arXiv
Year: 2018
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 05B35, 05C80

description: In the paper the generalisation of the well known "secretary problem" is considered. The aim of the paper is to give a generalised model in such a way that the chosen set of the possible best $k$ elements have to be independent of all rejected elements. This condition is formulated using the theory of greedoids and in their special cases -- matroids and antimatroids. Examples of some special cases of greedoids (uniform, graphical matroids and binary trees) are considered.
Lettre de George Charles à Jean-François Séguier, 1770-09-18
Creators: name: Charles, George
name: Charles, George
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Histoire naturelle (général)

description: [Botanique Charles] A Londres ce 18 septembre 1770.

Monsieur,

J’ai l’honneur de vous remettre, ci-inclus, le connoissement du capitaine d’un vaisseau marchand anglais qui a fait voile d’ici depuis deux ou trois jours pour le port de Villefranche de Nice afin que vous puissiez à temps en prévenir votre correspondant et lui faire passer ledit connoissement pour retirer les deux petites caisses qui vous sont adressées. L’une contient un tome des Travaux de Monsieur Hill, l’autre d’autres livres avec des semences des plantes du jardin de Kew. Le tout de la part dudit Monsieur, qui vient de me dire dans ce moment que lesdites choses vous devaient être envoyées il y a bien longtemps. La faute de son relieur de livres qu’il avait chargé de cette affaire… Monsieur Hill vous fait bien ses compliments et me prie de vous dire que le 16e tome est presque prêt à vous être envoyé.
La santé de notre respectable ami, à Venise, se soutient passablement bien, mais pas tout à fait comme il est à souhaiter si [fol. 115v] vous le trouvez bon, Monsieur, de lui faire vos compléments par écrit. Vous ferez bien de faire passer votre lettre par les mains de M. le chevalier Lambert à Paris, qui la lui fera parvenir partout où il sera, car son séjour à Venise est incertain.
Je profite de cette occasion de vous renouveler mes très humbles remerciements de toutes vos politesses lors de mon passage deux fois à Nîmes, pour lesquelles je voudrais bien trouver de l’occasion de vous marquer ma reconnaissance, car je suis avec beaucoup de respect et d’estime,

 Monsieur,

 Votre très humble
 Et très obéissant serviteur

 G. Charles

[J’ai écrit la réponse le 25 janvier 1771]

[fol. 116] Le 28 septembre 1770, j’ai prié Monsieur John Brirkbeck consul anglais à Marseille de faire retirer à Nice les deux petites caisses d’en faire payer le fret et me les expédier ensemble de Marseille à Nîmes par la messagerie. Je copie ici le connoissement que je lui ai envoyé.

London 4th sept. 1770. Rec. on board the Anglicana Napt. In° Hugues for Villafranca two boxes adressed A Monsieur, Monsieur Séguier à Nîmes

P. In° Duvlah.

L B D
1:8 1:2 4 s.
1:8 1:3 5 s.
description: Source: [établissement de conservation] Nîmes, Bibliothèque Carré d'Art [cote] ms. 249, fol. 115-116
Reinforcement Sensitivity Theory, approach-affect and avoidance-affect
Creators: name: Warr, Peter B.
name: Sánchez-Cardona, Israel
name: Taneva, Stanimira K.
name: Vera, Maria
name: Bindl, Uta K.
name: Cifre, Eva
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Plant Biology

description: This paper brings together Reinforcement Sensitivity Theory and other perspectives on wellbeing to test predictions about dimensions of affect which are linked to approach motivation or avoidance motivation. Valence and activation are jointly conceptualised as either approach-affect or avoidance-affect through the diagonal axes of an affective circumplex. Across four studies in three different countries, predictions about Reinforcement Sensitivity Theory’s Behavioural Activation System, Behavioural Inhibition System and Fight-Flight-Freeze System are found to be supported. Correlations with external variables are shown to depend on a wellbeing measure’s emphasis on approach or avoidance, such that affect and external features which both emphasise motivation to approach or to avoid yield substantially larger intercorrelations than do non-concordant pairs. In addition, joining valence with activation is shown to yield correlational benefits as predicted. Implications of our perspective and operationalisation are reviewed, and specific research recommendations are made.
Gravitational Lensing and the Variability of G
Creators: name: Krauss, Lawrence
name: White, Martin
Publisher: name: arXiv
Year: 1992
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The four observables associated with gravitational lensing of distant quasars by intervening galaxies: image splittings, relative amplifications, time delays, and optical depths, provide separate measures of the strength of the gravitational constant $G$ at cosmological distances. These allow one, in principle, to factor out unknown lensing parameters to directly to probe the variation of $G$ over cosmological time. We estimate constraints on $\dot{G}$ which may be derivable by this method both now and in the future. The limits one may obtain can compete or exceed other direct limits on $\dot{G}$ today, but unfortunately extracting this information, is not independent of the effort to fix other cosmological parameters such as $H_0$ and $Ω_0$ from lensing observations.
description: 13 pages plus figures (not included)
Die Datenbank Bauforschung/Restaurierung
Creators: name: Mohn, Claudia
Publisher: name: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege
Year: 2024

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 53 Nr. 2 (2024)
MARCOS, a numerical tool for the simulation of multiple time-dependent non-linear diffusive shock acceleration
Creators: name: Ferrand, Gilles
name: Downes, Turlough
name: Marcowith, Alexandre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new code aimed at the simulation of diffusive shock acceleration (DSA), and discuss various test cases which demonstrate its ability to study DSA in its full time-dependent and non-linear developments. We present the numerical methods implemented, coupling the hydrodynamical evolution of a parallel shock (in one space dimension) and the kinetic transport of the cosmic-rays (CR) distribution function (in one momentum dimension), as first done by Falle. Following Kang and Jones and collaborators, we show how the adaptive mesh refinement technique (AMR) greatly helps accommodating the extremely demanding numerical resolution requirements of realistic (Bohm-like) CR diffusion coefficients. We also present the paral lelization of the code, which allows us to run many successive shocks at the cost of a single shock, and thus to present the first direct numerical simulations of linear and non-linear multiple DSA, a mechanism of interest in various astrophysical environments such as superbubbles, galaxy clusters and early cosmological flows.
description: accepted for publication in MNRAS by the Royal Astronomical Society and Blackwell Publishing
Magnetization distribution in a spin ladder-shaped quantum nanomagnet
Creators: name: Szałowski, K.
name: Kowalewska, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The quantum nanomagnets show interesting site-dependent magnetic properties as a function of the temperature and the external magnetic field. In the paper we present the results of calculations for a finite quantum spin ladder with two legs, consisting of 12 spins $S=1/2$. We describe our system with isotropic quantum Heisenberg model and perform exact numerical diagonalization of the Hamiltonian to use canonical ensemble approach. Our analysis focuses on the site-dependent magnetization in the system, presenting magnetization distributions for various interaction parameters. We discuss extensively the temperature and magnetic field dependences of individual site magnetizations. The interesting behaviour, with pronounced non-uniformity of magnetization across the ladder, is found.
On the Computation of Value Correspondences
Creators: name: Sleet, Christopher
name: Sevin Yeltekin Sleet
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Recursive game theory provides theoretical procedures for computing the equilibrium payoff sets of repeated games and the equilibrium payoff correspondences of dynamic games. In this paper, we propose and implement outer and inner approximation methods for value correspondences that naturally occur in the analysis of dynamic games. The procedure utilizes set-valued step functions. We provide an application to a bilateral insurance game with storage.
Truncated Solutions of Painlevé Equation ${\rm P}_{\rm V}$
Creators: name: Costin, Rodica D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34M55 (Primary) 34M30, 34M35 (Secondary)

description: We obtain convergent representations (as Borel summed transseries) for the five one-parameter families of truncated solutions of the fifth Painlevé equation with nonzero parameters, valid in half planes, for large independent variable. We also find the position of the first array of poles, bordering the region of analyticity. For a special value of this parameter they represent tri-truncated solutions, analytic in almost the full complex plane, for large independent variable. A brief historical note, and references on truncated solutions of the other Painlevé equations are also included.
New Ramsey Multiplicity Bounds
Creators: name: Parczyk, Olaf
name: Pokutta, Sebastian
name: Spiegel, Christoph
name: Szabó, Tibor
Publisher: name: Zenodo
Year: 2022

description: These are the supplementary files for the paper “New Ramsey Multiplicity Bounds and Search Heuristics” by Parczyk, Pokutta, Spiegel, and Szabo.

Upper bounds.   All graphs are described through their graph6 string. A full description of how to derive this description is included in the file  graph6_description.txt. All small constructions are stated in the paper and the larger constructions are contained in the archive graphs.zip.

Lower bounds.   We supply a certificate for all lower bounds stated in our paper in the archive graphs.zip that can be verified using  flagmatic. At the time of writing, a version of flagmatic can be found at https://github.com/jsliacan/flagmatic.
Next--to--Leading Order Corrections to Meson Masses in the Heavy Quark Effective Theory
Creators: name: Ball, P.
name: Braun, V. M.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use the QCD sum rule approach to calculate the splitting between vector and pseudoscalar mesons containing one light and one heavy quark, and the kinetic energy of the heavy quark. Our result for the splitting induced by the chromomagnetic interaction agrees to the experimental data on charm and beauty mesons. For the matrix element of the kinetic energy operator, we obtain the value $K=-(0.60\pm 0.10)\, {\rm GeV}^2$.
description: 33 ps., PS figures included, requires REVTEX.3 and psfig, TUM-T31-42/93/R (additional contribution to kinetic energy taken into account, marginal changes in the results)
Advice from the Oracle: Really Intelligent Information Retrieval
Creators: name: Kurtz, Michael J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: What is "intelligent" information retrieval? Essentially this is asking what is intelligence, in this article I will attempt to show some of the aspects of human intelligence, as related to information retrieval. I will do this by the device of a semi-imaginary Oracle. Every Observatory has an oracle, someone who is a distinguished scientist, has great administrative responsibilities, acts as mentor to a number of less senior people, and as trusted advisor to even the most accomplished scientists, and knows essentially everyone in the field. In an appendix I will present a brief summary of the Statistical Factor Space method for text indexing and retrieval, and indicate how it will be used in the Astrophysics Data System Abstract Service. 2018 Keywords: Personal Digital Assistant; Supervised Topic Models
description: Author copy; published 25 years ago at the beginning of the Astrophysics Data System; 2018 keywords added
On Padberg’s Conjecture about Almost Totally Unimodular Matrices
Creators: name: Cornuejols, Gerard
name: Zuluaga, Luis F.
Publisher: name: Carnegie Mellon University
Year: 1979
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: We consider Padberg's conjecture about almost totally unimodular matrices proposed in 1988 in Operations Research Letters. We show that it is not correct as stated and give a modified version of the conjecture.
New Ramsey Multiplicity Bounds
Creators: name: Parczyk, Olaf
name: Pokutta, Sebastian
name: Spiegel, Christoph
name: Szabó, Tibor
Publisher: name: Zenodo
Year: 2022

description: These are the supplementary files for the paper “New Ramsey Multiplicity Bounds” by Parczyk, Pokutta, Spiegel, and Szabo. Upper bounds. All graphs are described through their graph6 string. A full description of how to derive this description is included in the file graph6_description.txt. All small constructions are stated in the paper and the larger constructions are contained in the archive graphs.zip. Lower bounds. We supply a certificate for all lower bounds stated in our paper in the archive graphs.zip that can be verified using flagmatic. At the time of writing, a version of flagmatic can be found at https://github.com/jsliacan/flagmatic. Since this version relies on some no longer maintained software, we found it best to run it in docker container and have supplied the Dockerfile as well.
New Ramsey Multiplicity Bounds
Creators: name: Parczyk, Olaf
name: Pokutta, Sebastian
name: Spiegel, Christoph
name: Szabó, Tibor
Publisher: name: Zenodo
Year: 2022

description: These are the supplementary files for the paper “New Ramsey Multiplicity Bounds and Search Heuristics” by Parczyk, Pokutta, Spiegel, and Szabo. Upper bounds. All graphs are described through their graph6 string. A full description of how to derive this description is included in the file graph6_description.txt. All small constructions are stated in the paper and the larger constructions are contained in the archive graphs.zip. Lower bounds. We supply a certificate for all lower bounds stated in our paper in the archive graphs.zip that can be verified using flagmatic. At the time of writing, a version of flagmatic can be found at https://github.com/jsliacan/flagmatic.
Folding time dependence of the motions of a molecular motor diluted inside an amorphous medium
Creators: name: Ciobotarescu, Simona
name: Bechelli, Solene
name: Rajanson, Gabriel
name: Migirditch, Samuel
name: Hester, Brooke
name: Hurduc, Nicolae
name: Teboul, Victor
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the dependence of the displacements of a molecular motor embedded inside a glassy material on its folding characteristic time. We observe two different time regimes. For slow foldings (regime I) the diffusion evolves very slowly with the folding time, while for rapid foldings (regime II) the diffusion increases strongly with the folding time suggesting two different physical mechanisms. We find that in regime I the motor displacement during the folding process is counteracted by a reverse displacement during the unfolding, while in regime II this counteraction is much weaker. We notice that regime I behavior is reminiscent of the scallop theorem that holds for larger motors in a continuous medium. We find that the difference in the efficiency of the motor motion explains most of the observed difference between the two regimes. For fast foldings the motor trajectories differ significantly from the opposite trajectories induced by the following unfolding process, resulting in a more efficient global motion than for slow foldings. This result agrees with the fluctuation theorems expectation for time reversal mechanisms. In agreement with the fluctuation theorems we find that the motors are unexpectedly more efficient when they are generating more entropy, a result that can be used to increase dramatically the motor motion.
description: 9 pages, 9 figures
A PolariX TDS for the FLASH2 Beamline
Creators: name: Christie, Florian
name: Rönsch-Schulenburg, Juliane
name: Vogt, Mathias
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019

description: 39th International Free-Electron Laser Conference, FEL19, Hamburg, Germany, 26 Aug 2019 - 30 Aug 2019
description: Transverse Deflecting RF-Structures (TDS) are successfully used for longitudinal diagnostic purposes at many Free-Electron Lasers (FEL) (LCLS, FLASH, EU-XFEL, FERMI). Moreover, by installing a TDS downstream of the FEL undulators and placing the measurement screen in a dispersive section, the temporal photon pulse structure can be estimated, as was demonstrated at LCLS and sFLASH. Here, we describe the installation of a variable polarization X-band structure (PolariX TDS) downstream of the FLASH2 undulators. The installation of such a TDS enables longitudinal phase space measurements and photon pulse reconstructions, as well as slice emittance measurements in both planes using the same cavity due to the unique variable polarization of the PolariX TDS.
The Ptolemaic Gamma-Ray Burst Universe
Creators: name: Katz, J. I.
Publisher: name: arXiv
Year: 1992
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The BATSE experiment on GRO has demonstrated the isotropic arrival directions and flat $\log N$ {\it vs.} $\log S$ of cosmic gamma-ray bursts. These data are best explained if the burst sources are distributed throughout an extended spherical Galactic halo, as previously suggested by Jennings. The halo's radius is at least 40 Kpc, and probably is more than 100 Kpc. I consider possible origins of this halo, including primordial formation and neutron stars recoiling from their birthplaces in the Galactic disc. A simple geometrical model leads to a predicted relation between the dipole and quadrupole anisotropy. I suggest that neutron stars born with low recoil become millisecond pulsars, while those born with high recoil become the sources of gamma-ray bursts; these populations are nearly disjoint. Quiescent counterparts of gamma-ray bursts are predicted to be undetectably faint.
description: 10 pages (Replaced to provide omitted line.)
Spatio-temporal scaling for out-of-equilibrium relaxation dynamics of an elastic manifold in random media: crossover between the Larkin regime and thermally activated regime
Creators: name: Nogawa, Tomoaki
name: Nemoto, Koji
name: Yoshino, Hajime
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study relaxation dynamics of a three dimensional elastic manifold in random potential from a uniform initial condition by numerically solving the Langevin equation.We observe growth of roughness of the system up to larger wavelengths with time.We analyze structure factor in detail and find a compact scaling ansatz describing two distinct time regimes and crossover between them. We find short time regime corresponding to length scale smaller than the Larkin length $L_c$ is well described by the Larkin model which predicts a power law growth of domain size $L(t)$. Longer time behavior exhibits the random manifold regime with slower growth of $L(t)$.
description: 7 pages, 5 figures
Emotional metacognition: stimulus valence modulates cardiac arousal and metamemory
Creators: name: Legrand, Nicolas
name: Engen, Sebastian Scott
name: Correa, Camile Maria Costa
name: Mathiasen, Nanna Kildahl
name: Nikolova, Niia
name: Fardo, Francesca
name: Allen, Micah
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Emotion alters how we feel, see, and experience the world. In the domain of memory, the emotional valence and arousal of memorised stimuli can modulate both the acuity and content of episodic recall. However, no experiment has investigated whether arousal and valence also influence metacognition for memory (i.e. the process of self-monitoring memories). In a pre-registered study, we applied a novel psychophysiological design together with computational models of metacognition to assess the influence of stimulus valence and arousal on the sensitivity, bias, and efficiency of metamemory. To estimate the role of physiological arousal in mediating these effects, we recorded cardiac measures through pulse oximetry. We found that negative valence substantially decreased both memory performance and subjective confidence, in particular for low arousal words. Simultaneously, we found that emotional valence modulated both heart rate and heart-rate variability (HRV) during recognition memory. Exploratory trial-level analyses further revealed that subjective confidence was encoded in instantaneous heart-rate fluctuations and that this relationship was also modulated by emotional valence. Our results demonstrate that recognition memory and metacognition are influenced by the emotional valence of encoded items and that this correlation is in part related to cardiac activity.
Expanding Photospheres of Type II Supernovae and the Extragalactic Distance Scale
Creators: name: Schmidt, B P
name: Kirshner, R P
name: Eastman, R G
Publisher: name: arXiv
Year: 1992
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the Expanding Photosphere Method to determine distances to 10 type II supernovae. The effects of asymmetries, extinction, and flux dilution are explored. Using empirical evidence and time-independent, spherical models which treat H and He in non-LTE, we show that blackbody corrections caused by flux dilution are small for type II supernovae in the infrared, and in the optical when their color temperatures are less than 6000~K. The extinction to a type II-P supernova can be estimated from its light curve: the uncertainty introduced into a distance measurement due to extinction is usually less than 10\%. Correcting for extinction and flux dilution we derive distances to 10 supernovae: SN 1968L, SN 1969L, SN 1970G, SN 1973R, SN 1979C, SN 1980K, SN 1987A, SN 1988A, SN 1990E, and SN 1990ae. The distance measurements span a wide range, 50 kpc to 120 Mpc, which is unique among the methods for establishing the extragalactic distance scale. The distances measured to SN 1970G in M101 and SN 1987A in the LMC are in good agreement with distances determined from Cepheid variable stars. Our distance to the Virgo Cluster, 22 +- 3 Mpc, is larger than recent distances estimates made using surface brightness fluctuations, planetary nebula luminosity functions, and the Tully-Fisher method. Using the distances determined from these type II supernovae we derive a value of $H_0 = 60 \pm 10$ km sec$^{-1}$Mpc$^{-1}$. This value is subject to errors caused by local deviations in the Hubble flow, but will soon be improved by applying the Expanding Photosphere Method to several distant type II supernovae.
description: 21 pages
Universal Dissipationless Dynamics in Gaussian Continuous-variable Open Systems
Creators: name: Zhu, Han-Jie
name: Zhang, Guo-Feng
name: Zhuang, Lin
name: Liu, Wu-Ming
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the universal dissipationless dynamics of Gaussian continuous-variable systems in the presence of a band-gapped bosonic environment. Our results show that environmental band gaps can induce localized modes, which give rise to the dissipationless dynamics where the system behaves as free oscillators instead of experiencing a full decay in the long time limit. We present a complete characterization of localized modes, and show the existence of the critical system-environment coupling. Beyond the critical values, localized modes can be produced and the system dynamics become dissipationless. This novel dynamics can be utilized to overcome the environmental noises and protect the quantum resources in the continuous-variable quantum information.
description: 6 pages, 2 figures;any comments are welcome!
The affect of negativity: testing the Foreign Language Effect in three types of valence framing and a moral dilemma
Creators: name: Holleman, Bregje
name: Kamoen, Naomi
name: Struiksma, Marijn
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: In decision-making people react differently to positive wordings than to negatives, which may be caused by negativity bias: a difference in emotional force of these wordings. Because emotions are assumed to be activated more strongly in one’s mother tongue, we predict a Foreign Language Effect, being that such framing effects are larger in a native language than in a foreign one. In two experimental studies (N = 475 and N = 503) we tested this prediction for balanced and unbalanced second language users of Spanish and English and for three types of valence framing effects. In Study 1 we observed risky-choice framing effects and attribute framing effects, but these were always equally large for native and foreign-language speakers. In our second study, we added a footbridge dilemma to the framing materials. Only for this task we did observe a Foreign Language Effect, indicating more utilitarian choices when the dilemma is presented in L2. Hence, across two studies, we find no Foreign Language Effect for three types of valence framing but we do find evidence for such an effect in a moral decision task. We discuss several alternative explanations for these results.
COSMOS and GOODS-S fields spectro-photometric CIGALE study: Is [OIII]λ5007 a good tracer of SFR?
Creators: name: Vélez, Jorge Andrés Villa
name: Buat, Véronique
Publisher: name: Zenodo
Year: 2019
Subjects: catalogs – galaxies: high-redshift – galaxies: emission lines – ISM: dust – extinction

description: The Hα emission line is widely used in astronomy to derive SFRs. Both physical quantities are highly correlated and Hα can be easily measured from spectra. Other emission lines as [OII], [OIII], among others have been proposed as tracers but the physics of these lines is more complicated. We count with photometric data covering from the UV to the IR wavelengths including Hα and [OIII] emission for COSMOS and GOODS-S fields. We perform SED fitting using CIGALE to retrieve accurate SFRs and emission line attenuation to propose a calibration of SFR in terms of [OIII] luminosity. At high-redshift Hα emission is not available and most of the important spectral features are shifted to the IR. Proposing new calibrations in terms of other emission lines available in this range is crucial to target future observations.
#J20
Creators: name: Jules, Bergis
Publisher: name: Dryad
publisherIdentifier: https://ror.org/00x6h5n95
publisherIdentifierScheme: ROR
Year: 2018

description: A collection of 184,759 tweet ids for tweets collected that
 included the hashtags #J20, #DisruptJ20, and #DefendJ20.
 On January 20th, 2017, during President Donald Trumps inauguration,
 234 protestors were arrested in Washington D.C. and subsequently
 prosecuted by the U.S. federal government. 21 of the defendants plead
 guilty to various levels of charges over the course of the trials while
 all the other charges were dismissed. The last of the charges
 were dismissed on July 6th, 2018.  Buzzfeed
 News: https://www.buzzfeed.com/zoetillman/the-government-is-dropping-all-charges-in-the-remaining?utm_term=.kvwGjgW4dN#.ii6kWOrp8D 7-6-2018 US Motion to Dismiss J20 Remaining: https://www.scribd.com/document/383351930/7-6-18-US-Motion-to-Dismiss-J20-Remaining    
description: The ids were collected using the DocNow prototype Twitter collection
 tool. 
description: This collection only includes ids of individual tweets. Twitter's
 policies only allow the sharing of tweet ids for research purposes. You
 can use the DocNow Hydrator application to upload the ids and recreate the
 original tweets. Hydrator can be found
 here: https://github.com/DocNow/hydrator
On Monetary Stability and Monetary Reform
Creators: name: Meltzer, Allan
Publisher: name: Carnegie Mellon University
Year: 1989
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The organizers have asked an important question, in my view, one of the most important questions - or more accurately set of questions - that can be asked of economists. How do we achieve greater stability? How big are the instabilities now, and how many of them are caused, or magnified, by current policy arrangements? Do fluctuating exchange rates augment or buffer shocks arising elsewhere, or are fluctuating exchange rates an independent source of disturbance? Can monetary reforms, domestic or international, increase stability without fiscal reforms, greater stability of trade policy and perhaps, either changes in political systems or fewer opportunities for politicians to influence economic events.
Online Hate Speech and the Radical Right in Times of Pandemic: The Italian and English Cases
Creators: name: Caiani, Manuela
name: Carlotti, Benedetta
name: Padoan, Enrico
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Social media is considered a particularly conducive arena for hate speech, a form of communication often linked to the radical right. The goal of this study is to offer an empirical contribution that comparatively explores the presence and features of hate speech in the social media discourse of the radical right (leaders and parties) in Italy and the UK during the first year of the pandemic. This mixed-methods study analyses 21,360 tweets using wordcloud analysis (to conceptually map the social media discourse of the radical right and mainstream parties), topic modelling (to identify the main topics of the radical right’s tweets and how they relate to Covid-19) and formalised content analysis (to better understand how hate speech is related to the virus). We find that radical right leaders have managed to bring exclusion-oriented issues to the agenda at this time of crisis, albeit in different ways, by emphasising different understandings of in-groups and out-groups in relation to Covid-19.
Periodic oscillators, isochronous centers and resonance
Creators: name: Ortega, Rafael
name: Rojas, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: An oscillator is called isochronous if all motions have a common period. When the system is forced by a time-dependent perturbation with the same period the dynamics may change and the phenomenon of resonance can appear. In this context, resonance means that all solutions are unbounded. The theory of resonance is well known for the harmonic oscillator and we extend it to nonlinear isochronous oscillators.
description: 28 pages