cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00476
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes
subject: Corpus Burgundiae Medii Aevi

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00476, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 4 (215)]
Creators: name: Ambrosolus Criuellus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1346
Subjects: subject: Sonstige weltliche Aussteller
subject: Urkunde
subject: 090

description: Ambrosolus Criuellus, Collector censuum et novalium des Erzbistums Mailand, versichert, von der Kirche St. Petri Castri Arsi, die dem Kloster St. Thomae in Cremona untersteht, ein Kontingent an Wachs als census für das laufende Jahr erhalten zu haben.
title: ROSAT X-Ray Observations of the Spiral Galaxy M81
Creators: name: Immler, S
name: Wang, QD
Publisher: name: University of Massachusetts Amherst
Year: 2001
Subjects: subject: galaxies: individual (M81); galaxies: general; galaxies: spiral; X-rays: galaxies; X-rays: general; X-rays: ISM
subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv. The published version is located at http://iopscience.iop.org/0004-637X/554/1/202/
description: We present results from the analysis of deep ROSAT HRI and PSPC observations of the spiral galaxy M81. The inferred total (0.5-2 keV band) luminosity of M81 is ~3 × 1040 ergs s-1, excluding the contribution from identified interlopers found within the D25 ellipse. The nucleus of the galaxy alone accounts for about 65% of this luminosity. The rest is due to 26 other X-ray sources (contributing ~10%) and to apparently diffuse emission, which is seen across much of the galactic disk and is particularly bright in the bulge region around the nucleus. Spectral analysis further gives evidence for a soft component, which can be characterized by a two-temperature optically thin plasma with temperature at ~0.15 and 0.60 keV and an absorption of the galactic foreground only. These components, accounting for ~13% of the X-ray emission from the region, apparently arise in a combination of hot gas and faint discrete sources. We find interesting spatial coincidences of luminous (1037-1040 ergs s-1) and variable X-ray sources with shock-heated optical nebulae. Three of them are previously classified as supernova remnant candidates. The other one is far off the main body of M81 but is apparently associated with a dense H I concentration produced most likely by the tidal interactions of the galaxy with its companions. These associations suggest that such optical nebulae may be powered by outflows from luminous X-ray binaries, which are comparable to, or more luminous than, Galactic "microquasars."
Delta-excitations and the three-nucleon force
Creators: name: Epelbaum, E.
name: Krebs, H.
name: Meißner, Ulf-G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the three-nucleon force in chiral effective field theory with explicit Delta-resonance degrees of freedom. We show that up to next-to-next-to-leading order, the only contribution to the isospin symmetric three-nucleon force involving the spin-3/2 degrees of freedom is given by the two-pion-exchange diagram with an intermediate delta, frequently called the Fujita-Miyazawa force. We also analyze the leading isospin-breaking corrections due to the delta. For that, we give the first analysis of the delta quartet mass splittings in chiral effective field theory. The charge-symmetry breaking three-nucleon force due to an intermediate delta excitation is small, of the order of a few keV.
description: 12 pages, 2 figures; minor changes, reference added
A Search for Dark Matter Annihilation in the Milky Way Halo
Creators: name: Chang, Laura J.
name: Lisanti, Mariangela
name: Mishra-Sharma, Siddharth
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Milky Way halo is the brightest source of dark matter annihilation on the sky. Indeed, the potential strength of the Galactic dark matter signal can supersede that expected from dwarf galaxies and galaxy groups even in regions away from the Inner Galaxy. In this paper, we present the results of a search for dark matter annihilation in the smooth Milky Way halo for $|b| > 20^\circ$ and $r < 50^\circ$ using 413 weeks of Fermi Pass 8 data within the energy range of $\sim$0.8-50 GeV. We exclude thermal dark matter with mass below $\sim$70 GeV that annihilates to $b\bar{b}$ at the 95% confidence level using the p6v11 cosmic-ray foreground model, providing the strongest limits on the annihilation cross section in this mass range. These results exclude the region of dark matter parameter space that is consistent with the excess of $\sim$GeV photons observed at the Galactic Center for the $b\bar{b}$ annihilation channel and, for the first time, start probing the $τ^+τ^-$ explanation. We explore how these results depend on uncertainties in the foregrounds by varying over a set of reasonable models.
description: 9+8 pages, 4+10 figures; v2, reorganized discussion and updated to journal version, results and conclusions unchanged
Holomorphic Lagrangian subvarieties in holomorphic symplectic manifolds with Lagrangian fibrations and special Kahler geometry
Creators: name: Kamenova, Ljudmila
name: Verbitsky, Misha
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Let $M$ be a holomorphic symplectic Kähler manifold equipped with a Lagrangian fibration $π$ with compact fibers. The base of this manifold is equipped with a special Kähler structure, that is, a Kähler structure $(I, g, ω)$ and a symplectic flat connection $\nabla$ such that the metric $g$ is locally the Hessian of a function. We prove that any Lagrangian subvariety $Z\subset M$ which intersects smooth fibers of $π$ and smoothly projects to $π(Z)$ is a toric fibration over its image $π(Z)$ in $B$, and this image is also special Kähler. This answers a question of N. Hitchin related to Kapustin-Witten BBB/BAA duality.
description: 12 pages, version 4.0, some minor corrections according to the referee report
A Large US Retailer Selects Transportation Carriers Under Diesel Price Uncertainty
Creators: name: Turner, John
name: Peterson, Ben
name: Soo-Haeng Cho
name: Sunder  Kekre
name: Wolf, Alan
Publisher: name: Carnegie Mellon University
Year: 1991
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: A large US retailer that procures transportation services from third-party carriers experienced an unexpected jump in fuel surcharges as the price of diesel fuel skyrocketed in the summer of 2008. As a result, it sought to limit its future exposure to diesel price risk. We collaborated with this retailer to create a lane assignment optimizer (LAO) that incorporates diesel price risk when selecting carriers for its transportation lanes. The LAO tool has significantly improved the retailer's capability to evaluate the trade-off between the two crucial components of a lane's per-shipment cost: base price and risk-adjusted fuel surcharge. The retailer can now take diesel price risk into account when selecting cost-effective carriers for its lanes, negotiating fuel surcharge limits to share diesel price risk with its carriers, and better aligning the fuel surcharges it pays with the true cost of diesel. We estimate that the more favorable contract terms the retailer negotiated for 2009–2011 translate to nearly $5 million in potential savings during years with unexpected diesel price hikes, such as 2008.
A Hybrid Method for Planning and Scheduling
Creators: name: Hooker, John N.
Publisher: name: Carnegie Mellon University
Year: 2016
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: We combine mixed integer linear programming (MILP) and constraint programming (CP) to solve planning and scheduling problems. Tasks are allocated to facilities using MILP and scheduled using CP, and the two are linked via logic-based Benders decomposition. Tasks assigned to a facility may run in parallel subject to resource constraints (cumulative scheduling). We solve minimum cost problems, as well as minimum makespan problems in which all tasks have the same release date and deadline. We obtain computational speedups of several orders of magnitude relative to the state of the art in both MILP and CP.
Supervised learning magnetic skyrmion phases
Creators: name: Iakovlev, I. A.
name: Sotnikov, O. M.
name: Mazurenko, V. V.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We propose and apply simple machine learning approaches for recognition and classification of complex non-collinear magnetic structures in two-dimensional materials. The first approach is based on the implementation of the single-hidden-layer neural network that only relies on the z projections of the spins. In this setup one needs a limited set of magnetic configurations to distinguish ferromag- netic, skyrmion and spin spiral phases, as well as their different combinations in transitional areas of the phase diagram. The network trained on the configurations for square-lattice Heisenberg model with Dzyaloshinskii-Moriya interaction can classify the magnetic structures obtained from Monte Carlo calculations for triangular lattice and vice versa. The second approach we apply, a minimum distance method performs a fast and cheap classification in cases when a particular configuration is to be assigned to only one magnetic phase. The methods we propose are also easy to use for analysis of the numerous experimental data collected with spin-polarized scanning tunneling microscopy and Lorentz transmission electron microscopy experiments.
description: 9 pages, 14 figures. Accepted for publication in Physical Review B
$b \to s γ$ Decay in $SU(2)_L \times SU(2)_R \times U(1)$ Extensions of the Standard Model
Creators: name: Cho, Peter
name: Misiak, Mikolaj
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The rare radiative decay $b \to s γ$ is studied in $SU(2)_L \times SU(2)_R \times U(1)$ extensions of the Standard Model. Matching conditions for coefficients of operators appearing in the low energy effective Hamiltonian for this process are derived, and QCD corrections to these coefficients are analyzed. The $b \to s γ$ decay rate is then calculated and compared with the corresponding Standard Model result. We find that observable deviations from Standard Model predictions can occur in $SU(2)_L \times SU(2)_R \times U(1)$ theories for a reasonable range of parameter values.
description: 17 pages with 5 figures not included but available upon request, CALT-68-1893, TUM-T31-52/93
Digital Shakespeare in a Post-COVID Educational Landscape: Context, Strategies, and Challenges
Creators: name: BEN AMOR, Zied
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390405
subject: Educational technology and computing
classificationCode: 470508
subject: Digital literature
classificationCode: 470514
subject: Literary theory
classificationCode: 470504
subject: British and Irish literature

description: The article reflects on the relationship between blended learning, Shakespearean pedagogy, and the changing post-COVID educational environment. The research provides perspectives on adapting blended learning and advocating for a balanced approach that mixes digital tools and traditional lessons to enhance the teaching of Shakespeare. The analysis addresses the abrupt move towards blended learning in post-COVID educational landscapes, focusing on Tunisia's adaption and how it affects teaching Shakespeare. The investigation internationally contextualises blended learning in a post-COVID environment and sets the theoretical background prior to the implementation of blended learning. Practical solutions and strategies for using blended learning to teach Shakespeare are suggested. Different digital platforms of annotation, video and graphic editing, gamified learning, and other interactive tools are introduced as solutions to imbed blended teaching for Shakespeare. The paper stresses the value of multimedia tools and promotes group projects, online discussions, and digital timelines. Suggestions for implementing blended digital learning cover assessment methods and suggest that evaluation techniques can be adjusted to conform to the concepts of blended learning, focusing on technologically enabled, dynamic evaluations. The study, then, raises interrogations and enumerates the difficulties associated with digital teaching, such as concerns about inclusion, the need for training teachers and students, and socioeconomic disparities. The concluding part defends the importance of reaching a balanced approach with an insistence on the primacy of viva voce instruction in conjunction with digital tools. The success of implementing blended learning for the teaching of Shakespeare is conditioned by the authorities' willingness to invest in technology, infrastructure, and teacher preparation to provide fair access and promote inclusive learning environments.
A Hybrid Constraint Programming and Semidefinite Programming Approach for the Stable Set Problem
Creators: name: Willem-Jan Van Hoeve
Publisher: name: Carnegie Mellon University
Year: 1983
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: This work presents a hybrid approach to solve the maximum stable set problem, using constraint and semidefinite programming. The approach consists of two steps: subproblem generation and subproblem solution. First we rank the variable domain values, based on the solution of a semidefinite relaxation. Using this ranking, we generate the most promising subproblems first, by exploring a search tree using a limited discrepancy strategy. Then the subproblems are being solved using a constraint programming solver. To strengthen the semidefinite relaxation, we propose to infer additional constraints from the discrepancy structure. Computational results show that the semidefinite relaxation is very informative, since solutions of good quality are found in the first subproblems, or optimality is proven immediately.
MFQE 2.0: A New Approach for Multi-frame Quality Enhancement on Compressed Video
Creators: name: Xing, Qunliang
name: Guan, Zhenyu
name: Xu, Mai
name: Yang, Ren
name: Liu, Tie
name: Wang, Zulin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: The past few years have witnessed great success in applying deep learning to enhance the quality of compressed image/video. The existing approaches mainly focus on enhancing the quality of a single frame, not considering the similarity between consecutive frames. Since heavy fluctuation exists across compressed video frames as investigated in this paper, frame similarity can be utilized for quality enhancement of low-quality frames given their neighboring high-quality frames. This task is Multi-Frame Quality Enhancement (MFQE). Accordingly, this paper proposes an MFQE approach for compressed video, as the first attempt in this direction. In our approach, we firstly develop a Bidirectional Long Short-Term Memory (BiLSTM) based detector to locate Peak Quality Frames (PQFs) in compressed video. Then, a novel Multi-Frame Convolutional Neural Network (MF-CNN) is designed to enhance the quality of compressed video, in which the non-PQF and its nearest two PQFs are the input. In MF-CNN, motion between the non-PQF and PQFs is compensated by a motion compensation subnet. Subsequently, a quality enhancement subnet fuses the non-PQF and compensated PQFs, and then reduces the compression artifacts of the non-PQF. Also, PQF quality is enhanced in the same way. Finally, experiments validate the effectiveness and generalization ability of our MFQE approach in advancing the state-of-the-art quality enhancement of compressed video. The code is available at https://github.com/RyanXingQL/MFQEv2.0.git.
description: Accepted to TPAMI in September, 2019. v6 updates: correct units in Fig. 11; correct author info; delete bio photos. arXiv admin note: text overlap with arXiv:1803.04680
Deep Reinforcement Learning based Optimal Control of Hot Water Systems
Creators: name: Kazmi, Hussain
name: Mehmood, Fahad
name: Lodeweyckx, Stefan
name: Driesen, Johan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Systems and Control (eess.SY)
subject: Applications (stat.AP)
subject: Machine Learning (stat.ML)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Energy consumption for hot water production is a major draw in high efficiency buildings. Optimizing this has typically been approached from a thermodynamics perspective, decoupled from occupant influence. Furthermore, optimization usually presupposes existence of a detailed dynamics model for the hot water system. These assumptions lead to suboptimal energy efficiency in the real world. In this paper, we present a novel reinforcement learning based methodology which optimizes hot water production. The proposed methodology is completely generalizable, and does not require an offline step or human domain knowledge to build a model for the hot water vessel or the heating element. Occupant preferences too are learnt on the fly. The proposed system is applied to a set of 32 houses in the Netherlands where it reduces energy consumption for hot water production by roughly 20% with no loss of occupant comfort. Extrapolating, this translates to absolute savings of roughly 200 kWh for a single household on an annual basis. This performance can be replicated to any domestic hot water system and optimization objective, given that the fairly minimal requirements on sensor data are met. With millions of hot water systems operational worldwide, the proposed framework has the potential to reduce energy consumption in existing and new systems on a multi Gigawatt-hour scale in the years to come.
Morphogenesis of growing soft tissues
Creators: name: Dervaux, Julien
name: Amar, Martine Ben
Publisher: name: arXiv
Year: 2007
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: Recently, much attention has been given to a noteworthy property of some soft tissues: their ability to grow. Many attempts have been made to model this behaviour in biology, chemistry and physics. Using the theory of finite elasticity, Rodriguez has postulated a multiplicative decomposition of the geometric deformation gradient into a growth-induced part and an elastic one needed to ensure compatibility of the body. In order to fully explore the consequences of this hypothesis, the equations describing thin elastic objects under finite growth are derived. Under appropriate scaling assumptions for the growth rates, the proposed model is of the Foppl-von Karman type. As an illustration, the circumferential growth of a free hyperelastic disk is studied.
description: 4 pages, 3 figures
Angle dependent quasiparticle weights in correlated metals
Creators: name: Ghaemi, Pouyan
name: Senthil, T.
name: Coleman, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The variation in the quasiparticle weight $Z$ on moving around the fermi surface in correlated metals is studied theoretically. Our primary example is a heavy Fermi liquid treated within the standard hybridization mean field theory. The most dramatic variation in the quasiparticle weight happens in situations where the hybridization vanishes along certain directions in momentum space. Such a "hybridization node" is demonstrated for a simplified model of a Cerium-based cubic heavy electron metal. We show that the quasiparticle weight varies from almost unity in some directions, to values approaching zero in others. This is accompanied by a similar variation in the quasiparticle effective mass. Some consequences of such hybridization nodes and the associated angle dependence are explored. Comparisons to somewhat similar phenomena in the normal metallic state of the cuprate materials are discussed. A phenomenological picture of the pseudogap state in the cuprates with a large Fermi surface with a severely anisotropic spectral weight is explored.
description: 10 pages, 1 figure
Quadratic algebras and position-dependent mass Schrödinger equations
Creators: name: Quesne, C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: During recent years, exact solutions of position-dependent mass Schrödinger equations have inspired intense research activities, based on the use of point canonical transformations, Lie algebraic methods or supersymmetric quantum mechanical techniques. Here we highlight the interest of another approach to such problems, relying on quadratic algebras. We illustrate this point by constructing spectrum generating algebras for a class of $d$-dimensional radial harmonic oscillators with $d\ge2$ (including the one-dimensional oscillator on the line via some minor changes) and a specific mass choice. This provides us with a counterpart of the well-known su(1,1) Lie algebraic approach to the constant-mass oscillators.
description: 6 pages, no figure, communication at the 5th Int. Symp. on Quantum Theory and Symmetries (QTS5), Valladolid, Spain, July 22-28, 2007
Near- to mid-Infrared Observations of Galaxy Mergers: NGC2782 and NGC7727
Creators: name: Onaka, Takashi
name: Nakamura, Tomohiko
name: Sakon, Itsuki
name: Wu, Ronin
name: Ohsawa, Ryou
name: Kaneda, Hidehiro
name: Lebouteiller, Vianney
name: Roellig, Thomas L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of near- to mid-infrared (NIR to MIR) imaging and NIR spectroscopic observations of two galaxy mergers, NGC 2782 (Arp 215) and NGC 7727 (Arp 222), with the Infrared Camera on board AKARI. NGC 2782 shows extended MIR emission in the eastern side of the galaxy, which corresponds to the eastern tidal tail seen in the HI 21 cm map, while NGC 7727 shows extended MIR emission in the north of the galaxy, which is similar to the plumes seen in the residual image at the K-band after subtracting a galaxy model. Both extended structures are thought to have formed associated with their merger events. They show excess emission at 7--15 micron, which can be attributed to emission from polycyclic aromatic hydrocarbons (PAHs), while the observed spectral energy distributions decline longward of 24 micron, suggesting that very small grains (VSGs) are deficient. These characteristics of the observed MIR spectral energy distribution may be explained if PAHs are formed by fragmentation of VSGs during merger events. The star formation rate is estimated from the MIR PAH emission in the eastern tail region of NGC 2782 and it is in fair agreement with those estimated from Halpha and [CII] 158 micron. MIR observations are efficient for the study of dust processing and structures formed during merger events.
description: 14 figure, to appear in the Astrophysical Journal
Metropolized Knockoff Sampling
Creators: name: Bates, Stephen
name: Candès, Emmanuel
name: Janson, Lucas
name: Wang, Wenshuo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Model-X knockoffs is a wrapper that transforms essentially any feature importance measure into a variable selection algorithm, which discovers true effects while rigorously controlling the expected fraction of false positives. A frequently discussed challenge to apply this method is to construct knockoff variables, which are synthetic variables obeying a crucial exchangeability property with the explanatory variables under study. This paper introduces techniques for knockoff generation in great generality: we provide a sequential characterization of all possible knockoff distributions, which leads to a Metropolis-Hastingsformulation of an exact knockoff sampler. We further show how to use conditional independence structure to speed up computations. Combining these two threads, we introduce an explicit set of sequential algorithms and empirically demonstrate their effectiveness. Our theoretical analysis proves that our algorithms achieve near-optimal computational complexity in certain cases. The techniques we develop are sufficiently rich to enable knockoff sampling in challenging models including cases where the covariates are continuous and heavy-tailed, and follow a graphical model such as the Ising model.
Natural Slow-Roll Inflation
Creators: name: Langbein, R. F.
name: Langfeld, K.
name: Reinhardt, H.
name: Smekal, L. v.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that the non-perturbative dynamics of a phase change to the non-trivial phase of $λφ^4$-theory in the early universe can give rise to slow-rollover inflation without recourse to unnaturally small couplings.
description: 14 LaTex pages (3 figures available on request), UNITUE-THEP-15-1993
Field Theories for Loop-Erased Random Walks
Creators: name: Wiese, Kay Joerg
name: Fedorenko, Andrei A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Self-avoiding walks (SAWs) and loop-erased random walks (LERWs) are two ensembles of random paths with numerous applications in mathematics, statistical physics and quantum field theory. While SAWs are described by the $n \to 0$ limit of $ϕ^4$-theory with $O(n)$-symmetry, LERWs have no obvious field-theoretic description. We analyse two candidates for a field theory of LERWs, and discover a connection between the corresponding and a priori unrelated theories. The first such candidate is the $O(n)$-symmetric $ϕ^4$ theory at $n=-2$ whose link to LERWs was known in two dimensions due to conformal field theory. Here it is established in arbitrary dimension via a perturbation expansion in the coupling constant. The second candidate is a field theory for charge-density waves pinned by quenched disorder, whose relation to LERWs had been conjectured earlier using analogies with Abelian sandpiles. We explicitly show that both theories yield identical results to 4-loop order and give both a perturbative and a non-perturbative proof of their equivalence. This allows us to compute the fractal dimension of LERWs to order $ε^5$ where $ε=4-d$. In particular, in $d=3$ our theory gives $z_{\rm LERW}(d=3)= 1.6243 \pm 0.001$, in excellent agreement with the estimate $z = 1.624 00 \pm 0.00005$ of numerical simulations.
description: 18 pages, 223 figures. Added in v2: algebraic proof for the equivalence between the two theories. Explicit diagrammatic expression at 5 loop. v3: final version
Chern-Simons Modified General Relativity: Conserved charges
Creators: name: Tekin, Bayram
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct the conserved charges (mass and angular momentum) of the Chern-Simons modified General Relativity in asymptotically flat and Anti-de Sitter (AdS) spacetimes. Our definition is based on background Killing symmetries and reduces to the known expressions in the proper limits.
description: 9 pages, References added, version to appear in Phys. Rev. D
HG-means: A scalable hybrid genetic algorithm for minimum sum-of-squares clustering
Creators: name: Gribel, Daniel
name: Vidal, Thibaut
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Minimum sum-of-squares clustering (MSSC) is a widely used clustering model, of which the popular K-means algorithm constitutes a local minimizer. It is well known that the solutions of K-means can be arbitrarily distant from the true MSSC global optimum, and dozens of alternative heuristics have been proposed for this problem. However, no other algorithm has been predominantly adopted in the literature. This may be related to differences of computational effort, or to the assumption that a near-optimal solution of the MSSC has only a marginal impact on clustering validity. In this article, we dispute this belief. We introduce an efficient population-based metaheuristic that uses K-means as a local search in combination with problem-tailored crossover, mutation, and diversification operators. This algorithm can be interpreted as a multi-start K-means, in which the initial center positions are carefully sampled based on the search history. The approach is scalable and accurate, outperforming all recent state-of-the-art algorithms for MSSC in terms of solution quality, measured by the depth of local minima. This enhanced accuracy leads to clusters which are significantly closer to the ground truth than those of other algorithms, for overlapping Gaussian-mixture datasets with a large number of features. Therefore, improved global optimization methods appear to be essential to better exploit the MSSC model in high dimension.
description: 22 pages
On the Wess-Zumino-Witten anomalous functional at finite temperature
Creators: name: Alvarez-Estrada, R. F.
name: Dobado, A.
name: Nicola, A. Gomez
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the finite temperature extension of the anomalous Wess-Zumino -Witten lagrangian. The finite temperature S^1\times S^3 compactification makes a structure in disconnected sectors, corresponding to different baryon numbers appear naturally. The consistency of the anomalous functional is proved for arbitrary baryon number configurations. The anomalous behavior of the functional is shown to be consistent with the absence of finite temperature corrections to chiral anomalies in QCD, for each baryon number sector.
description: 16 pages, FT/UCM/9/93
Absence of strong localization at low conductivity in the topological surface state of low disorder Sb2Te3
Creators: name: Rosen, Ilan T.
name: Yudhistira, Indra
name: Sharma, Gargee
name: Salehi, Maryam
name: Kastner, M. A.
name: Oh, Seongshik
name: Adam, Shaffique
name: Goldhaber-Gordon, David
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present low-temperature transport measurements of a gate-tunable thin film topological insulator system that features high mobility and low carrier density. Upon gate tuning to a regime around the charge neutrality point, we infer an absence of strong localization even at conductivities well below $e^2/h$, where two dimensional electron systems should conventionally scale to an insulating state. Oddly, in this regime the localization coherence peak lacks conventional temperature broadening, though its tails do change dramatically with temperature. Using a model with electron-impurity scattering, we extract values for the disorder potential and the hybridization of the top and bottom surface states.
description: 6 pages, 4 figures, with 11 pages of supplementary information
E-prescribing and access to prescription medicines during lockdown: experience of patients in Aotearoa/New Zealand
Creators: name: Imlach, F
name: McKinlay, E
name: Kennedy, J
name: Morris, C
name: Pledger, Megan
name: Cumming, J
name: McBride-Henry, Karen
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences
subject: 111099 Nursing not elsewhere classified

description: Background: Health services internationally have been compelled to change their methods of service delivery in response to the global COVID-19 pandemic, to mitigate the spread of infection amongst health professionals and patients. In Aotearoa/New Zealand, widespread electronic delivery of prescriptions (e-prescribing) was enabled. The aim of the research was to explore patients’ experiences of how lockdown, changes to prescribing and the interface between general practices and community pharmacy affected access to prescription medications. Method: The research employed a mixed-method approach. This included an online survey (n = 1,010) and in-depth interviews with a subset of survey respondents (n = 38) during the first COVID-19 lockdown (March–May 2020). Respondents were recruited through a snowballing approach, starting with social media and email list contacts of the research team. In keeping with the approach, descriptive statistics of survey data and thematic analysis of qualitative interview and open-ended questions in survey data were combined. Results: For most respondents who received a prescription during lockdown, this was sent directly to the pharmacy. Most people picked up their medication from the pharmacy; home delivery of medication was rare (4%). Survey and interview respondents wanted e-prescribing to continue post-lockdown and described where things worked well and where they encountered delays in the process of acquiring prescription medication. Conclusions: E-prescribing has the potential to improve access to prescription medication and is convenient for patients. The increase in e-prescribing during lockdown highlighted how the system could be improved, through better feedback about errors, more consistency across practices and pharmacies, more proactive communication with patients, and equitable prescribing costs.
Lower and upper bounds on nonunital qubit channel capacities
Creators: name: Filippov, Sergey N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 81P45

description: Classical capacity of unital qubit channels is well known, whereas that of nonunital qubit channels is not. We find lower and upper bounds on classical capacity of nonunital qubit channels by using a recently developed decomposition technique relating nonunital and unital positive qubit maps.
description: 5 pages, 2 figures
A Bound on $m_η/m_{η'}$ for Large $N_C$
Creators: name: Georgi, Howard
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If the number of colors is large, the ratio $m_η/m_{η'}$ is bounded from above. The bound is not satisfied by the observed $η$ and $η'$ masses.
description: 5 pages, \#HUTP-93/A029
Classification of quotient bundles on the Fargues-Fontaine curve
Creators: name: Hong, Serin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We completely classify all quotient bundles of a given vector bundle on the Fargues-Fontaine curve. As consequences, we have two additional classification results: a complete classification of all vector bundles that are generated by a fixed number of global sections and a nearly complete classification of subbundles of a given vector bundle. For the proof, we combine the dimension counting argument for moduli of bundle maps developed in [BFH+17] with a series of reduction arguments based on some reinterpretation of the classifying conditions.
description: 41 pages, 13 figures, with an appendix coauthored by Hannah Larson
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 4 (216)]
Creators: name: Symonius
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1346
Subjects: subject: Sonstige geistliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Symoninus de Sancto Syllo, Praepositus der Kirche St. Cataldi in Cremona, belehnt Egidiollus de Persicho, Sohn des verstorbenen Ottebonus und Erbe des Marchinus de Persicho, mit einem Stück Land, gelegen in der Nachbarschaft von St. Crucis in Cremona, für den Zeitraum von neun Jahren.
Real intersection homology II: A local duality obstruction
Creators: name: McCrory, Clint
name: Parusinski, Adam
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14P25, 14F43, 55N33

description: We show that the intersection pairing on our real intersection homology groups is not a dual pairing in general.
description: 7 pages. Second author grant support added
A comparative study of aqueous DMSO mixtures by computer simulations and integral equation theories
Creators: name: Perera, Aurélien
name: Lovrinčević, Bernarda
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Several computer simulation studies of aqueous dimethylsulfoxyde with different force field models, and conducted by different authors, point out to an anomalous depressing of second and third neighbour correlations of the water-water radial distribution functions. This seemingly universal feature can be interpreted as the formation of linear water clusters. We test here the ability of liquid state integral equation theories to reproduce this feature. It is found that the incorporation of the water bridge diagram function is required to reproduce this feature. These theories are generally unable to properly reproduce atom-atom distribution functions. However, the near-ideal Kirkwood-Buff integrals are relatively well reproduced. We compute the Xray scattering function and compare with available experimental results, with the particular focus to explain why this data does not reproduce the cluster pre-peak observed in the water-water structure factor.
description: 31 pages, 10 figures
Smectic ordering in athermal systems of rod-like triblock copolymers
Creators: name: Varga, Szabolcs
name: Fraden, Seth
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The phase behavior of the system of parallel rigid triblock copolymers is examined using the second-virial density functional theory. The triblock particle consists of two identical infinitely thin hard rods of finite lengths on the opposite ends of one central hard cylinder with nonzero length and diameter. Stability analyses and free energy calculations show that the system of parallel particles can form not only uniform nematic and smectic A phases, but a smectic-C phase too. The stability and structure of the tilted structure is controlled by only the diameter and the length of the central cylinder segment. Interestingly, the diameter effects only the layer tilting and the periodicity, but not the packing fraction of the nematic to smectic-C transition. For all values of cylinder length the usual smectic-A and smectic-C transitions compete with each other and no nematic-columnar transition is observed. At low and high cylinder length the smectic-A phase is stabilized first, while the smectic C is the most stable for intermediate length values.
Boundedness in families with applications to arithmetic hyperbolicity
Creators: name: van Bommel, Raymond
name: Javanpeykar, Ariyan
name: Kamenova, Ljudmila
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Motivated by conjectures of Demailly, Green-Griffiths, Lang, and Vojta, we show that several notions related to hyperbolicity behave similarly in families. We apply our results to show the persistence of arithmetic hyperbolicity along field extensions for projective normal surfaces with nonzero irregularity. These results rely on the mild boundedness of semi-abelian varieties. We also introduce and study the notion of pseudo-algebraic hyperbolicity which extends Demailly's notion of algebraic hyperbolicity for projective schemes.
description: 39 pages. Final version
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 31 (5)]
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1650
Subjects: subject: Urkunde
subject: 090

description: Stammbaum mit den Vorfahren Karl Ferdinands von Lodron, Domherr zu Trient, Sohn des Nikolaus von Lodron und der Theodora Chizzola
Classification of subbundles on the Fargues-Fontaine curve
Creators: name: Hong, Serin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We completely classify all subbundles of a given vector bundle on the Fargues-Fontaine curve. Our classification is given in terms of a simple and explicit condition on Harder-Narasimhan polygons. Our proof is inspired by the proof of the main theorem in [Hon19], but also involves a number of nontrivial adjustments.
description: 26 pages
REPRODUCTIVE DECISION-MAKING STRATEGIES
Creators: name: Granados, Angel
Publisher: name: Zenodo
Year: 2021
Subjects: children and offspring
fertility
reproductive behavior and intention
sexual history and behavior
perceptions of childrearing
family composition and history

description: Postindustrial demographic studies have analyzed the decline in fertility over the past several decades. Patterns of early decline to sub-replacement fertility reflect preferences for families with a maximum of two children. Hypothetical Fertility refers to an individual’s intentions and expectations for future fertility in response to external and internal factors. Often, these ideals do not accurately represent actual fertility; but reflect people’s expressed preferences prior to completing their own reproduction. While most developed countries currently exhibit below sub-replacement fertility patterns, the United States has maintained a somewhat steady fertility rate, with patterns such as an increase in fertility amongst highly educated women in recent times observed. Using a multifaceted lens consisting of life-history theory, embodied capital theory, reproductive psychology, demography, and evolutionary demography provides a holistic perspective on fertility demands and reproductive decision-making strategies. Age, family size, education, and endogenous and exogenous factors related to the individual’s ability to successfully raise children were examined for their relation to participants' desired number of offspring and their perceptions of an ideal family size. The participants' desired number of offspring and their stated ideal family size were both smaller than either their natal family size (number of siblings), their parents’ average natal family size, and their grandparents’ average natal family size. Perceived costs associated with raising children, such as paying for college, were associated with a desire for fewer children, while the expectation of having grandchildren was associated with a desire for a greater number of offspring. While exogenous factors related to meeting child-rearing costs were not significantly associated with participants’ desired number of offspring or their ideal family sizes, endogenous factors, such as their perceived parenting qualities, were positively associated with a desire for offspring and with a significantly larger ideal family size.
Reentrant spin glass transition in LuFe2O4
Creators: name: Wang, Fan
name: Kim, Jungho
name: Gu, G. D.
name: Kim, Young-June
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have carried out a comprehensive investigation of magnetic properties of LuFe$_2$O$_4$, using AC susceptibility, DC magnetization and specific heat. A magnetic phase transition around $\sim$236 K was observed with DC magnetization and specific heat measurements, which is identified as a paramagnetic to ferrimagnetic transition based on the nonlinear susceptibility data. Upon further cooling below this temperature, we also observed highly relaxational magnetic behavior: the DC magnetization exhibits history and time dependence, and the real and imaginary part of the AC susceptibility shows large frequency dependence. Dynamic scaling of the AC susceptibility data suggests that this low temperature phase can be described as a reentrant spin glass phase. We also discuss magnetic field dependence of the spin glass transition and aging, memory and rejuvenation effect below the glass transition temperature around 228 K.
description: 8 pages, 10 figures
The Non-Trivial Effective Potential of the `Trivial' lambda Phi^4 Theory: A Lattice Test
Creators: name: Consoli, M.
name: Stevenson, P. M.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The strong evidence for the `triviality' of (lambda Phi^4)_4 theory is not incompatible with spontaneous symmetry breaking. Indeed, for a `trivial' theory the effective potential should be given exactly by the classical potential plus the free-field zero-point energy of the shifted field; i.e., by the one-loop effective potential. When this is renormalized in a simple, but nonperturbative way, one finds, self-consistently, that the shifted field does become non-interacting in the continuum limit. For a classically scale-invariant (CSI) lambda Phi^4 theory one finds m_h^2 = 8 pi^2 v^2, predicting a 2.2 TeV Higgs boson. Here we extend our earlier work in three ways: (i) we discuss the analogy with the hard-sphere Bose gas; (ii) we extend the analysis from the CSI case to the general case; and (iii) we propose a test of the predicted shape of the effective potential that could be tested in a lattice simulation.
description: 22 pages, LaTeX, DE-FG05-92ER40717-9