cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Toward free-surface flow simulations with correct energy evolution: an isogeometric level-set approach with monolithic time-integration
Creators: name: Akkerman, I.
name: Eikelder, M. ten
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This paper presents a new monolithic free-surface formulation that exhibits correct kinetic and potential energy behavior. We focus in particular on the temporal energy behavior of two-fluids flow with varying densities. Correct energy behavior here means that the actual energy evolution of the numerical solution matches the evolution as predicted by the discrete two-fluid equations. We adopt the level-set method to describe the two-fluid surface. To ensure the correct energy behavior we augment the interface convection equation with kinetic and potential energy constraints. We solve the resulting formulation consisting of the fluid and interface equations in a monolithic fashion using a recently proposed level-set method [I. Akkerman. Monotone level-sets on arbitrary meshes without redistancing. Computers & Fluids, 146:74-85, 2017.]. For the spatial discretization divergence-conforming NURBS are adopted. The resulting discrete equations are solved with a quasi-newton method which partially decouples the constraints from the rest of the problem. The simulation of a dambreak problem numerically supports the correct energy behavior of the proposed methodology. This improves the solution quality significantly upon a more traditional approach. Due to the excellent accuracy per degree of freedom one can suffice with a much lower resolution.
description: Accepted in Computers and Fluids
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1112
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1112, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1112, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Regularities of Many-body Systems Interacting by a Two-body Random Ensemble
Creators: name: Zhao, Y. M.
name: Arima, A.
name: Yoshinaga, N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The ground states of all even-even nuclei have angular momentum, $I$, equal to zero, I=0, and positive parity, $π=+$. This feature was believed to be a consequence of the attractive short-range interaction between nucleons. However, in the presence of two-body random interactions, the predominance of $I^π=0^+$ ground states (0 g.s.) was found to be robust both for bosons and for an even number of fermions. For simple systems, such as $d$ bosons, $sp$ bosons, $sd$ bosons, and a few fermions in single-$j$ shells for small $j$, there are a few approaches to predict and/or explain spin $I$ ground state ($I$ g.s.) probabilities. An empirical approach to predict $I$ g.s. probabilities is available for general cases, such as fermions in a single-$j$ ($j>7/2$) or many-$j$ shells and various boson systems, but a more fundamental understanding of the robustness of 0 g.s. dominance is still out of reach. Further interesting results are also reviewed concerning other robust phenomena of many-body systems in the presence of random two-body interactions, such as the odd-even staggering of binding energies, generic collectivity, the behavior of average energies, correlations, and regularities of many-body systems interacting by a displaced two-body random ensemble.
description: finalized version, review article (103 pages, 23 figures). accepted by Physics Reports
Shear-stress fluctuations and relaxation in polymer glasses
Creators: name: Kriuchevskyi, I.
name: Wittmer, J. P.
name: Meyer, H.
name: Benzerara, O.
name: Baschnagel, J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate by means of molecular dynamics simulation a coarse-grained polymer glass model focusing on (quasi-static and dynamical) shear-stress fluctuations as a function of temperature T and sampling time $Δt$. The linear response is characterized using (ensemble-averaged) expectation values of the contributions (time-averaged for each shear plane) to the stress-fluctuation relation $μ_{sf}$ for the shear modulus and the shear-stress relaxation modulus $G(t)$. Using 100 independent configurations we pay attention to the respective standard deviations. While the ensemble-averaged modulus $μ_{sf}(T)$ decreases continuously with increasing T for all $Δt$ sampled, its standard deviation $δμ_{sf}(T)$ is non-monotonous with a striking peak at the glass transition. The question of whether the shear modulus is continuous or has a jump-singularity at the glass transition is thus ill-posed. Confirming the effective time-translational invariance of our systems, the $Δt$-dependence of $μ_{sf}$ and related quantities can be understood using a weighted integral over $G(t)$. This implies that the shear viscosity $η(T)$ may be readily obtained from the $1/Δt$-decay of $μ_{sf}$ above the glass transition.
description: 21 pages, 21 figures, submitted to PRE
Poincaré, the Dynamics of the Electron, and Relativity
Creators: name: Damour, Thibault
Publisher: name: arXiv
Year: 2017
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: On June 5, 1905 Poincaré presented a Note to the Académie des Sciences entitled "Sur la dynamique de l'électron" ("On the Dynamics of the Electron"). After briefly recalling the context that led Poincaré to write this Note, we comment its content. We emphasize that Poincaré's electron model consists in assuming that the interior of the worldtube of the (hollow) electron is filled with a positive cosmological constant. We then discuss the several novel contributions to the physico-mathematical aspects of Special Relativity which are sketched in the Note, though they are downplayed by Poincaré who describes them as having only completed the May 1904 results of Lorentz "dans quelques points de détail" ("in a few points of detail").
description: 21 pages, to appear in a special issue of the Comptes Rendus Physique
Dynamical screening in monolayer transition-metal dichalcogenides and its manifestations in the exciton spectrum
Creators: name: Scharf, Benedikt
name: Van Tuan, Dinh
name: Žutić, Igor
name: Dery, Hanan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Monolayer transition-metal dichalcogenides (ML-TMDs) offer exciting opportunities to test the manifestations of many-body interactions through changes in the charge density. Tuning the charge density by a gate voltage leads to profound changes in the optical spectra of excitons in ML-TMDs. We review the band-gap renormalization and dynamical screening as a function of charge density, and then incorporate these effects through various approximations that model long-wavelength charge excitations in the Bethe-Salpeter Equation (BSE). We then show that coupling between excitons and shortwave charge excitations is essential to resolve several experimental puzzles. Unlike ubiquitous and well-studied plasmons, driven by collective oscillations of the background charge density in the long-wavelength limit, we discuss the emergence of shortwave plasmons that originate from the short-range Coulomb interaction through which electrons transition between the $\mathbf{K}$ and $-\mathbf{K}$ valleys. We study the coupling between the shortwave plasmons and the neutral exciton through the self-energy of the latter. We then elucidate how this coupling as well as the spin ordering in the conduction band give rise to an experimentally observed optical sideband in electron-doped W-based MLs, conspicuously absent in electron-doped Mo-based MLs or any hole-doped ML-TMDs. While the focus of this review is on the optical manifestations of many-body effects in ML-TMDs, a systematic description of the dynamical screening and its various approximations allow one to revisit other phenomena, such as nonequilibrium transport or superconducting pairing, where the use of the BSE or the emergence of shortwave plasmons can play an important role.
description: This revised version is far more extensive. Any feedback is welcome
A Numerical Simulation of the Reconnection Layer in 2D Resistive MHD
Creators: name: Uzdensky, Dmitri A.
name: Kulsrud, Russell M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In this paper we present a two-dimensional, time dependent, numerical simulation of a reconnection current layer in incompressible resistive magnetohydrodynamics with uniform resistivity in the limit of very large Lundquist numbers. We use realistic boundary conditions derived consistently from the outside magnetic field, and we also take into account the effect of the back pressure from flow into the the separatrix region. We find that within a few Alfven times the system evolves from an arbitrary initial state to a steady state consistent with the Sweet--Parker model, even if the initial state is Petschek-like.
description: 33 pages, 17 figures
Topological freeness for $C^*$-correspondences
Creators: name: Carlsen, T. M.
name: Kwasniewski, B. K.
name: Ortega, E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L08

description: We study conditions that ensure uniqueness theorems of Cuntz-Krieger type for relative Cuntz-Pimsner algebras $\mathcal{O}(J,X)$ associated to a $C^*$-correspondence $X$ over a $C^*$-algebra $A$. We give general sufficient conditions phrased in terms of a multivalued map $\widehat{X}$ acting on the spectrum $\widehat{A}$ of $A$. When $X(J)$ is of Type I we construct a directed graph dual to $X$ and prove a uniqueness theorem using this graph. When $X(J)$ is liminal, we show that topological freeness of this graph is equivalent to the uniqueness property for $\mathcal{O}(J,X)$, as well as to an algebraic condition, which we call $J$-acyclicity of $X$. As an application we improve the Fowler-Raeburn uniqueness theorem for the Toeplitz algebra $\mathcal{T}_X$. We give new simplicity criteria for $\mathcal{O}_X$. We generalize and enhance uniqueness results for relative quiver $C^*$-algebras of Muhly and Tomforde. We also discuss applications to crossed products by endomorphisms.
description: We have updated the list of references, fixed some typos and made other minor improvements. This is the version that will be published
Additional file 1 of Diagnostic difficulties and possibilities of NF1-like syndromes in childhood
Creators: name: Pinti, Eva
name: Nemeth, Krisztina
name: Staub, Krisztina
name: Lengyel, Anna
name: Fekete, Gyorgy
name: Haltrich, Iren
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Additional file 1: Supplementary material 1. NF1 variation testing of the cohort. All 40 patients were tested for NF1 pathogenic variation with combination of cyto- and molecular genetic methods.
Democratic Supersymmetry
Creators: name: Devchand, Chandrashekar
name: Nuyts, Jean
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present generalisations of N-extended supersymmetry algebras in four dimensions, using Lorentz covariance and invariance under permutation of the N supercharges as selection criteria.
description: 26 pages, latex file
Dual career in the workplace: co-creation of a conceptual framework by employers and employee-sportspersons incorporating corporate social responsibility and brand alignment
Creators: name: Fusco, Andrea
name: MacDonncha, Ciaran
name: Capranica, Laura
name: Barat, Chloé
name: Bichi, Alberto
name: Blondel, Laurence
name: Daniel, Rosemary
name: Doupona, Mojca
name: Figueiredo, António José
name: Keldorf, Ole
name: Mattia, Giovanni
name: Papale, Olga
name: Milovan, Bratic
name: Pecnikar-Oblak, Viktorija
name: Pernetti, Valeria
name: Pisl, Andrej
name: Podnar, Klement
name: Juhl, Lotte
name: Sherwin, Ian
name: Stojiljkovic, Nenad
name: Verk, Nataša
name: Warrington, Giles David
name: Mingione, Michela
Publisher: name: University of Limerick
Year: 2025
Subjects: classificationCode: 4207
subject: Sports science and exercise

description: Introduction: The purpose of this study was to provide an evidence base and conceptual framework to inform new guidelines for achieving a balance between sports and employment commitments (i.e., dual career, DC) of the employee-sportspersons. To shape a DC discourse in the workplace, the distinct and combined views of the employee-sportspersons (i.e., the Employee), the managers (i.e., the Employer) were considered.Methods: Following a concept mapping methodology, 257 international participants (25% employers and 75% employee-sportspersons) sorted and rated 50 potential statements associated with DC circumstances and supportsin the workplace.Results: Six distinct clusters emerged, with the combined employers-employee co-creation scenario assigning 6 statements to the micro dimension (Cluster 1  =  Workplace Benefits), 4 statements to the meso dimension (Cluster 2  =  Role of National Sports Governing Bodies), 19 statements to the macro dimension (Cluster 3  =  Dual Career Policy Development), 4 and 5 statements to the organizational dimensions (Cluster 4  =  Employee-Employer Collaboration and Responsibility; Cluster 5  =  Sport Career Integration), and 12 statements to the policy (Cluster 6  =  Workplace Strategies for Dual Career Support) dimension. With respect to the employers, the employee-sportspersons showed higher scores (p  <  0.05) for importance of clusters 2, 4, and 6, and for feasibility of clusters 2 and 6.Discussion: These findings suggest priorities for changes within the DC dimensions identified, and envisage flexible models for aligning corporate brand values and corporate social responsibility strategies through meaningful and proactive DC support of the employee-sportspersons in the workplace. The findings provide a rigorously derived evidence base to inform the formulation of new DC workplace guidelines.
Additional file 2 of Diagnostic difficulties and possibilities of NF1-like syndromes in childhood
Creators: name: Pinti, Eva
name: Nemeth, Krisztina
name: Staub, Krisztina
name: Lengyel, Anna
name: Fekete, Gyorgy
name: Haltrich, Iren
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Additional file 2: Supplementary material 2. Symptoms and data of the cohort. All patients were tested for NF1, but some also for other suspicious NF1-like genes based on the main symptoms. Fulfilled NIH criteria are highlighted in bold. *: The parent had clinical diagnosis confirmed by genetic test. Abbreviations: IUGR: intrauterine growth retardation.
Entanglement in a Noninteracting Mesoscopic Structure
Creators: name: Lebedev, A. V.
name: Lesovik, G. B.
name: Blatter, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the time dependent electron-electron and electron-hole correlations in a mesoscopic device which is splitting an incident current of free fermions into two spatially separated particle streams. We analyze the appearance of entanglement as manifested in a Bell inequality test and discuss its origin in terms of local spin-singlet correlations already present in the initial channel and the action of post-selection during the Bell type measurement. The time window over which the Bell inequality is violated is determined in the tunneling limit and for the general situation with arbitrary transparencies. We compare our results with alternative Bell inequality tests based on coincidence probabilities.
description: 9 pages, 2 figures
Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon
Creators: name: Dahiya, Harleen
name: Randhawa, Monika
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In light of the improved precision of the experimental measurements and enormous theoretical progress, the nucleon form factors have been evaluated with an aim to understand how the static properties and dynamical behavior of nucleons emerge from the theory of strong interactions between quarks. We have analysed the vector and axial-vector nucleon form factors ($G^{p,n}_{E,M}(Q^2)$ and $G^{p,n}_{A}(Q^2)$) using the spin observables in the chiral constituent quark model ($χ$CQM) which has made a significant contribution to the unraveling of the internal structure of the nucleon in the nonperturbative regime. We have also presented a comprehensive analysis of the flavor decomposition of the form factors ($G^{q}_{E}(Q^2)$, $G^{q}_{M}(Q^2)$ and $G^{q}_{A}(Q^2)$for $q=u,d,s$) within the framework of $χ$CQM with emphasis on the extraction of the strangeness form factors which are fundamental to determine the spin structure and test the chiral symmetry breaking effects in the nucleon. The $Q^2$ dependence of the vector and axial-vector form factors of the nucleon has been studied using the conventional dipole form of parametrization. The results are in agreement with the available experimental data.
description: 26 pages, 11 figures. arXiv admin note: text overlap with arXiv:1606.06441, arXiv:1505.03304
Moral Argument: Theory and Practice
Creators: name: Covey, Preston K.
Publisher: name: Carnegie Mellon University
Year: 1982
Subjects: subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: There is a ’boom' in the teaching of ethics, across the nation and across diverse schools and departments of the arts and sciences and the professions. This is surely a good thing. And it’s apt to continue. And that is also a good thing. The question is of course: What in the way of ethics ought to be taught? This is an arguable matter to be sure, not to say one on which jealous disciplines wage minor holy wars.
Goodness-of-Fit Analysis of Radial Velocities Surveys
Creators: name: Hoffman, Yehuda
name: Zaroubi, Saleem
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using eigenmode expansion of the Mark-3 and SFI surveys of cosmological radial velocities a goodness-of-fit analysis is applied on a mode-by-mode basis. This differential analysis complements theBayesian maximum likelihood analysis that finds the most probable model given the data. Analyzing the surveys with their corresponding most likely models from the CMB-like family of models, as well as with the currently popular Lambda-CDM model, reveals a systematic inconsistency of the data with these `best' models. There is a systematic trend of the cumulative chi^2 to increase with the mode number (where the modes are sorted by decreasing order of the eigenvalues). This corresponds to a decrease of the chi^2 with the variance associated with a mode, and hence with its effective scale. It follows that the differential analysis finds that on small (large) scales the global analysis of all the modes `puts' less (more) power than actually required by the data. This observed trend might indicate one of the followings: a. The theoretical model (i.e. power spectrum) or the error model (or both) have an excess of power on large scales; b. Velocity bias; c. The velocity data suffers from still uncorrected systematic errors.
description: 12 pages including 2 figures. Accepted for publication in the Ap.J. Letters
QORAMOLLAR TUBERKULYOZINI ETIS-2 PREPARATI YORDAMIDA KIMYOPROFILAKTIKA QILISH USLUBINING IQTISODIY SAMARADORLIGI
Creators: name: Djurakulov O.K. tayanch doktorant Mamadullayev G.H. v.f.d., kat.ilm.xod. ilmiy rahbar Veterinariya ilmiy-tadqiqot instituti
Publisher: name: Zenodo
Year: 2024

description: Maqolada ETIS-2 kompleks preparatining qoramollar tuberkulyozini kimyoprofilaktikaqilish uslubining iqtisodiy samaradorligini o’rganish va kasallikka qarshi kurashish choralari haqidabayon qiling
Various Compressed Sensing Set-Ups Evaluated Against Shannon Sampling Under Constraint of Constant Illumination
Creators: name: Broek, Wouter Van den
name: Reed, Bryan W.
name: Béché, Armand
name: Velazco, Abner
name: Verbeeck, Johan
name: Koch, Christoph T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Under the constraint of constant illumination, an information criterion is formulated for the Fisher information that compressed sensing measurements in optical and transmission electron microscopy contain about the underlying parameters. Since this approach requires prior knowledge of the signal's support in the sparse basis, we develop a heuristic quantity, the detective quantum efficiency (DQE), that tracks this information criterion well without this knowledge. It is shown that for the investigated choice of sensing matrices, and in the absence of read-out noise, i.e. with only Poisson noise present, compressed sensing does not raise the amount of Fisher information in the recordings above that of Shannon sampling. Furthermore, enabled by the DQE's analytical tractability, the experimental designs are optimized by finding out the optimal fraction of on-pixels as a function of dose and read-out noise. Finally, we introduce a regularization and demonstrate, through simulations and experiment, that it yields reconstructions attaining minimum mean squared error at experimental settings predicted by the DQE as optimal.
description: 18 pages, 13 figures. New Monte Carlo simulations in Figure 13 showing the behavior of the single-pixel camera under various magnitudes of read-out noise
title: 01_0900
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Pairing fluctuation effects on the single-particle spectra for the superconducting state
Creators: name: Pieri, P.
name: Pisani, L.
name: Strinati, G. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Single-particle spectra are calculated in the superconducting state for a fermionic system with an attractive interaction, as functions of temperature and coupling strength from weak to strong. The fermionic system is described by a single-particle self-energy that includes pairing-fluctuation effects in the superconducting state. The theory reduces to the ordinary BCS approximation in weak coupling and to the Bogoliubov approximation for the composite bosons in strong coupling. Several features of the single-particle spectral function are shown to compare favorably with experimental data for cuprate superconductors.
description: 4 pages, 4 figures
Additional file 1 of Feasibility and results of a randomised pilot-study of pre-discharge occupational therapy home visits
Creators: name: Lannin, Natasha Anne
name: Clemson, Lindy
name: McCluskey, Annie
name: Lin, Chung-Wei Christine
name: Cameron, Ian D
name: Barras, Sarah
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology

description: Authors’ original file for figure 1
The gas and stellar mass of low-redshift damped Lyman-$α$ absorbers
Creators: name: Kanekar, Nissim
name: Neeleman, Marcel
name: Prochaska, J. Xavier
name: Ghosh, Tapasi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report Hubble Space Telescope Cosmic Origins Spectrograph far-ultraviolet and Arecibo Telescope H{\sc i} 21cm spectroscopic studies of six damped and sub-damped Lyman-$α$ absorbers (DLAs and sub-DLAs, respectively) at $z \lesssim 0.1$, that have yielded estimates of their H{\sc i} column density, metallicity and atomic gas mass. This significantly increases the number of DLAs with gas mass estimates, allowing the first comparison between the gas masses of DLAs and local galaxies. Including three absorbers from the literature, we obtain H{\sc i} masses $\approx (0.24 - 5.2) \times 10^9 \: {\rm M}_\odot$, lower than the knee of the local H{\sc i} mass function. This implies that massive galaxies do not dominate the absorption cross-section for low-$z$ DLAs. We use Sloan Digital Sky Survey photometry and spectroscopy to identify the likely hosts of four absorbers, obtaining low stellar masses, $\approx 10^7-10^{8.7} M_\odot$, in all cases, consistent with the hosts being dwarf galaxies. We obtain high H{\sc i} 21\,cm or CO emission line widths, $ΔV_{20} \approx 100-290$~km~s$^{-1}$, and high gas fractions, $f_{\rm HI} \approx 5-100$, suggesting that the absorber hosts are gas-rich galaxies with low star formation efficiencies. However, the H{\sc i} 21\,cm velocity spreads ($\gtrsim 100$~km~s$^{-1}$) appear systematically larger than the velocity spreads in typical dwarf galaxies.
description: 6 pages, 2 figures. Accepted for publication in MNRAS Letters
Residual Representations of Spacetime
Creators: name: Saller, Heinrich
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spacetime is modelled by binary relations - by the classes of the automorphisms $\GL(\C^2)$ of a complex 2-dimensional vector space with respect to the definite unitary subgroup $\U(2)$. In extension of Feynman propagators for particle quantum fields representing only the tangent spacetime structure, global spacetime representations are given, formulated as residues using energy-momentum distributions with the invariants as singularities. The associatated quantum fields are characterized by two invariant masses - for time and position - supplementing the one mass for the definite unitary particle sector with another mass for the indefinite unitary interaction sector without asymptotic particle interpretation.
description: 30 pages, latex, macros included
About one possibility of relativistic description of polarized deutron fragmentation
Creators: name: Azhgirey, L. S.
name: Yudin, N. P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In the framework of the light-front quantum theory developed by Karmanov et al. an analysis of the experimental data on the tensor analyzing power of the nuclear fragmentation of relativistic deuterons with the large transversal momentum proton emission has been made. With the Karmanov's wave function taken in system in which z-axis directed along the deuteron beam we have managed to explain the existing data without invoking additional to nucleons degrees of freedom.
description: 7 pages, 3 - figures, report on spin2003, Dubna, Russia, 2003
Model Change and Methodological Virtues in Scientific Inference
Creators: name: Kummerfeld, Erich
name: Danks, David
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: One persistent challenge in scientific practice is that the structure of the world can be unstable: changes in the broader context can alter which model of a phenomenon is preferred, all without any overt signal. Scientific discovery becomes much harder when we have a moving target, and the resulting incorrect understandings of relationships in the world can have significant real-world and practical consequences. In this paper, we argue that it is common (in certain sciences) to have changes of context that lead to changes in the relationships under study, but that standard normative accounts of scientific inquiry have assumed away this problem. At the same time, we show that inference and discovery methods can “protect” themselves in various ways against this possibility by using methods with the novel methodological virtue of “diligence.” Unfortunately, this desirable virtue provably is incompatible with other desirable methodological virtues that are central to reliable inquiry. No scientific method can provide every virtue that we might want.
Note on Noncommutative Tachyon in Matrix Models
Creators: name: Li, Miao
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The solution representing a brane-anti-brane system in matrix models breaks the usual matrix spacetime symmetry. We show that the spacetime symmetry on the branes is not breaking, rather appears as a combination of the matrix spacetime transformation and a gauge transformation. As a result, the tachyon field, itself an off-diagonal entry in longitudinal matrices, transforms nontrivially under rotations, decomposing into tensors of different ranks. We also show that the tachyon field can never be gauged away, and conjecture that this field is related to the usual complex scalar tachyon by a field redefinition. We also briefly discuss tachyon condensation.
description: 14 pages, harvmac. v3: more typos corrected, a ref. added
Smooth Version of Johnson's Problem Concerning Derivations of Group Algebras
Creators: name: Arutyunov, A. A.
name: Mishchenko, A. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: Functional Analysis (math.FA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 13N15, 17B40, 22D25, 46G05, 46M20, 47B47

description: A description of the algebra of outer derivations of a group algebra of a finitely presented discrete group is given in terms of the Cayley complex of the groupoid of the adjoint action of the group. This task is a smooth version of Johnson's problem concerning the derivations of a group algebra. It is shown that the algebra of outer derivations is isomorphic to the group of the one-dimensional cohomology with compact supports of the Cayley complex over the field of complex numbers.
description: 20 pages
Additional file 1 of Individual differences in the use of the response scale determine valuations of hypothetical health states: an empirical study
Creators: name: Essink-Bot, Marie-Louise
name: Stuifbergen, Marja C
name: Meerding, Willem-Jan
name: Looman, Caspar WN
name: Bonsel, Gouke J
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Authors’ original file for figure 1
Charge-dependent calculations of single-particle energies in nuclei around ^{16}O with modern nucleon-nucleon interactions
Creators: name: Fujii, S.
name: Okamoto, R.
name: Suzuki, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The binding energies of the ground states and several excited states related to single-particle and -hole states in nuclei around ^{16}O are calculated taking charge dependence into account. Effective interactions on the particle basis are constructed from modern charge-dependent nucleon-nucleon interactions and the Coulomb force within the framework of the unitary-model-operator approach. Single-particle (-hole) energies are obtained from the energy differences of the binding energies between a particle (hole) state in ^{17}O or ^{17}F (^{15}N or ^{15}O) and the ground state of ^{16}O. The resultant spin-orbit splittings are small for the hole state and large for the particle state in comparison with the experimental values though the differences between the experimental and calculated values are not very large. The charge dependence of the calculated single-particle energies for the ground states are in good agreement with the experimental values. Furthermore, the Thomas-Ehrman shift due to the Coulomb force for the 1s_{1/2} states in ^{17}O and ^{17}F can be observed.
description: 14 pages, 12 figures, submitted to Phys. Rev. C
Borazine - Molecule of the Month March 2025 [Archived version]
Creators: name: Griffiths, William
name: Belding, Stephen
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 349999
subject: Other chemical sciences not elsewhere classified

description:
This is the Molecule of the Month entry for March 2025 about borazine. It is a pdf archive version of the HTML webpage.
ASALARILARNING KUYA KASALIGINI ANIQLASh USULLARI
Creators: name: Rabbemov M., Davronov S. - magistrlar Eshburiyev S.B. v.f.d., dotsent - ilmiy rahbar Norboyeva M.R., Abdujabborov Y - talabalar Samarqand davlat veterinariya meditsinasi, chorvachilik va biotexnologiyalar universiteti
Publisher: name: Zenodo
Year: 2024

description: Ushbu maqolada asalarilarning kuya kasalligini asalari oilalarida aniqlashbo’yicha tadqiqot natijalari bayon etilgan. Asalari oilalarida kuya qurti va pillasining bo’lishiasalari lichinkalarining nobud bo’lishi, mumkataklarning buzilishiga sabab bo’ladi. Asalarilarninggigiyena qilish qobiliyatining yo’qolishiga sabab bo’lib, oilaning kuchsizlanishiga olib keladi.
Additional file 1 of Distinguishing patterns in the dynamics of long-term medication use by Markov analysis: beyond persistence
Creators: name: Menckeberg, Tanja T
name: Belitser, Svetlana V
name: Bouvy, Marcel L
name: Bracke, Madelon
name: Lammers, Jan-Willem J
name: Raaijmakers, Jan AM
name: Leufkens, Hubert GM
Publisher: name: figshare
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: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Plant Biology

description: Additional File 1: Appendix Statistical description of the Markov model designed for the analysis of ICS use in this study. (DOC 41 KB)
A Variability Study of Pre-Main Sequence Stars in the Extremely Young Cluster IC 348
Creators: name: Herbst, W.
name: Maley, J. A.
name: Williams, E. C
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The extremely young cluster IC 348 has been monitored in the Cousins I band with a 0.6 m telescope at Wesleyan's Van Vleck Observatory. Photometry of 150 stars was obtained on 76 images taken on 27 separate nights during the period December, 1998, through March, 1999. As expected, spectral characteristics largely determine the nature of a star's variability in this cluster. None of the stars with H-alpha in absorption were found to be variables. On the other hand, all 16 stars identified as CTTS by their H-alpha emission equivalent widths and the majority of the 49 WTTS in the part of the cluster we monitored showed evidence of variability. Nineteen stars were found to be periodic, with periods ranging from 2.24 to 16.2 days and masses ranging from 0.35 to 1.1 M-sun. Seventeen of these are WTTS and the other 2 are of unknown spectral class. The period distribution is remarkably similar to what is found in the Orion Nebula Cluster for stars in the same mass range. Namely, it is bimodal with peaks at 2-3 days and 7-8 days, although there are not enough periods known to define these features significantly by the IC 348 data alone. The three fastest rotators are also the three most massive stars in the periodic sample.
description: Scheduled for the Astronomical Journal, July 2000
Modal Operators and the Formal Dual of Birkhoff's Completeness Theorem
Creators: name: Awodey, Steve
name: Hughes, Jess
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: Steve Awodey and Jesse Hughes. Modal Operators and the Formal Dual of Birkhoff's Completeness Theorem.
Integrality Gaps for Colorful Matchings
Creators: name: Kelk, Steven
name: Stamoulis, Georgios
Publisher: name: arXiv
Year: 2018
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We study the integrality gap of the natural linear programming relaxation for the \textit{Bounded Color Matching} (BCM) problem. We provide several families of instances and establish lower bounds on their integrality gaps and we study how the Sherali-Adams "lift-and-project" technique behaves on these instances. We complement these results by showing that if we exclude certain simple sub-structures from our input graphs, then the integrality gap of the natural linear formulation strictly improves. To prove this, we adapt for our purposes the results of Füredi [\emph{Combinatorica}, 1(2):155-162, 1981]. We further leverage this to show upper bounds on the performance of the Sherali-Adams hierarchy when applied to the natural LP relaxation of the BCM problem.
description: 25 pages, 3 Figures
Correlated vortex pinning in Si-nanoparticle doped MgB2
Creators: name: Kusevic, I.
name: Babic, E.
name: Husnjak, O.
name: Soltanian, S.
name: Wang, X. L.
name: Dou, S. X.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetoresistivity and critical current density of well characterized Si-nanoparticle doped and undoped Cu-sheathed MgB$_{2}$ tapes have been measured at temperatures $T\geq 28$ K in magnetic fields $B\leq 0.9$ T. The irreversibility line $B_{irr}(T)$ for doped tape shows a stepwise variation with a kink around 0.3 T. Such $B_{irr}(T)$ variation is typical for high-temperature superconductors with columnar defects (a kink occurs near the matching field $% B_ϕ$) and is very different from a smooth $B_{irr}(T)$ variation in undoped MgB$_{2}$ samples. The microstructure studies of nanoparticle doped MgB$_{2}$ samples show uniformly dispersed nanoprecipitates, which probably act as a correlated disorder. The observed difference between the field variations of the critical current density and pinning force density of the doped and undoped tape supports the above findings.
description: 4 pages, 4 figures
Exact Noncommutative Solitons
Creators: name: Harvey, Jeffrey A.
name: Kraus, Per
name: Larsen, Finn
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find exact solitons in a large class of noncommutative gauge theories using a simple solution generating technique. The solitons in the effective field theory description of open string field theory are interpreted as D-branes for any value of the noncommutativity. We discuss the vacuum structure of open string field theory in view of our results.
description: 23 pages. v3: correction in section 3.2
Delay-independent dual-rate PID controller for a packetbased Networked Control System
Creators: name: Alcaina, J.
name: Cuenca, A.
name: Salt, J.
name: Casanovaa, V.
name: Pizá, R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, a novel delay-independent control structure for a networked control system (NCS) is proposed, where packet-based control strategies with predictor-based and dual-rate control techniques are integrated. The control solution is able to cope with some networked communication problems such as time-varying delays, packet dropouts and packet disorder. In addition, the proposed approach enables to reduce network load, and usage of connected devices, while maintaining a satisfactory control performance. As a delayindependent control solution, no network-induced delay measurement is needed for controller implementation. In addition, the control scheme is applicable to open-loop unstable plants. Control system stability is ensured in terms of linear matrix inequalities (LMIs). Simulation results show the main benefits of the control approach, which are experimentally validated by means of a Cartesian-robot-based test-bed platform.
description: 39 pages, 9 figures
Decoherence of one-dimensional flying qubits due to their cross-talk and imperfections
Creators: name: Khveshchenko, D. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study decoherence of propagating spin-1/2 excitations in generic (non-integrable and/or disordered) spin chains. We find the relevant decoherence times to be shorter in both the near-critical and diffusive regimes (if any), which fact might have important implications for the recently proposed spin chain-based implementations of quantum information processing.
description: Latex, 5 pages, no figures
The r-Process: Recent Progress and Needs for Nuclear Data
Creators: name: Qian, Y. -Z.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Several nuclear physics issues essential to understanding the r-process are discussed. These include validity of the waiting-point approximation, strength of closed neutron shells in neutron-rich nuclei far from stability, and effects of neutrino interaction with such nuclei. The needs for nuclear data in resolving these issues are emphasized.
description: 7 pages, 3 figures, Invited Talk at the 6th International Conference on Radioactive Nuclear Beams (RNB6)
A Giant Metrewave Radio Telescope search for associated H{\sc i} 21\,cm absorption in GHz-peaked-spectrum sources
Creators: name: Aditya, J. N. H. S.
name: Kanekar, Nissim
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the first detections of associated H{\sc i} 21\,cm absorption in Gigahertz-peaked-spectrum (GPS) sources at high redshifts, $z > 1$, using the Giant Metrewave Radio Telescope (GMRT). Our GMRT search for associated H{\sc i} 21\,cm absorption in a sample of 12 GPS sources yielded two new detections of absorption, towards TXS~1200+045 at $z = 1.226$ and TXS~1245$-$197 at $z = 1.275$, and five non-detections. These are only the sixth and seventh detections of associated H{\sc i} 21\,cm absorption in active galactic nuclei (AGNs) at $z > 1$. Both H{\sc i} 21\,cm absorption profiles are wide, with velocity spans between nulls of $\approx 600$~km~s$^{-1}$ (TXS~1200+045) and $\approx 1100$~km~s$^{-1}$ (TXS~1245$-$197). In both absorbers, the large velocity spread of the absorption and its blueshift from the AGN, suggests that it arises in outflowing neutral gas, perhaps driven by the radio jets to high velocities. We derive mass outflow rates of ${\dot M} \approx 32 \; {\rm M}_\odot$~yr$^{-1}$ (TXS~1200+045) and ${\dot M} \approx 18 \; {\rm M}_\odot$~yr$^{-1}$ (TXS~1245$-$197), comparable to the mass outflow rates seen earlier in low-redshift active galactic nuclei.
description: 10 pages, 3 figures. MNRAS, in press
Fourier power spectra at high frequencies: a way to distinguish a neutron star from a black hole
Creators: name: Sunyaev, R.
name: Revnivtsev, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyzed the power density spectra of a sample of 9 neutron star and 9 black hole binaries in the low/hard spectral state. In the power density spectra of accreting neutron stars with a weak magnetic field a significant power is contained at frequencies close to one kHz. At the same time, most Galactic accreting black holes demonstrate a strong decline in the power spectra at the frequencies higher than 10--50 Hz. We propose to use this empirical fact as a method to distinguish the accreting neutron stars from black holes in X-ray transients. The X-ray transients that demonstrate significant noise in their X-ray flux at frequencies above ~500 Hz should be considered neutron stars. We propose to explain the observed difference as a result of the existence of a radiation dominated spreading layer on the neutron star surface (Inogamov & Sunyaev 1999). The possible very high frequency variabilities of this layer are discussed.
description: 8 pages, 4 figures. Accepted for publication in A&A Main Journal