cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerov and phase-integral methods for charmonium
Creators: name: Esposito, Giampiero
name: Santorelli, Pietro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper applies the Numerov and phase-integral methods to the stationary Schrodinger equation that studies bound states of charm anti-charm quarks. The former is a numerical method well suited for a matrix form of second-order ordinary di erential equations, and can be applied whenever the stationary states admit a Taylor-series expansion. The latter is an analytic method that provides, in principle, even exact solutions of the stationary Schrodinger equation, and well suited for applying matched asymptotic expansions and higher order quantization conditions. The Numerov method is found to be always in agreement with the early results of Eichten et al., whereas an original evaluation of the phase-integral quantization condition clarifies under which conditions the previous results in the literature on higher-order terms can be obtained.
description: 23 pages, 2 tables and 2 figures. In the final version, the presentation and the numerical analysis have been improved, and a misprint in Eq. (2.3) has been amended
Supplementary material from Patterns of divergence in the morphology of ceratopsian dinosaurs: sympatry is not a driver of ornament evolution.
Creators: name: Knapp, Andrew
name: Knell, Robert J.
name: Farke, Andrew A.
name: Loewen, Mark A.
name: Hone, David W. E.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Phylogeny, occurences, p-values and cladistic character list
Low-Level Features for Image Retrieval Based on Extraction of Directional Binary Patterns and Its Oriented Gradients Histogram
Creators: name: S., Nagaraja
name: J., Prabhakar C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In this paper, we present a novel approach for image retrieval based on extraction of low level features using techniques such as Directional Binary Code, Haar Wavelet transform and Histogram of Oriented Gradients. The DBC texture descriptor captures the spatial relationship between any pair of neighbourhood pixels in a local region along a given direction, while Local Binary Patterns descriptor considers the relationship between a given pixel and its surrounding neighbours. Therefore, DBC captures more spatial information than LBP and its variants, also it can extract more edge information than LBP. Hence, we employ DBC technique in order to extract grey level texture feature from each RGB channels individually and computed texture maps are further combined which represents colour texture features of an image. Then, we decomposed the extracted colour texture map and original image using Haar wavelet transform. Finally, we encode the shape and local features of wavelet transformed images using Histogram of Oriented Gradients for content based image retrieval. The performance of proposed method is compared with existing methods on two databases such as Wang's corel image and Caltech 256. The evaluation results show that our approach outperforms the existing methods for image retrieval.
description: 7 Figures, 5 Tables 16 Pages in Computer Applications: An International Journal (CAIJ), Vol.2, No.1, February 2015
Open science and open data for human factors research
Creators: name: Bazilinskyy, Pavlo
name: Winter, Joost De
Publisher: name: Zenodo
Year: 2020

description: One of the presentations from the First Online Session leading up to the Dutch National Open Science Festival in 2021: 'The Open Science Use Case Awards' on July 2nd 2020. The publication ‘A Collection of Open Science Use Cases can be found here: https://zenodo.org/record/3903257
(2376) Thomas Rowland
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Efficient Online Decision Tree Learning with Active Feature Acquisition
Creators: name: Rahbar, Arman
name: Ye, Ziyu
name: Chen, Yuxin
name: Chehreghani, Morteza Haghir
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Constructing decision trees online is a classical machine learning problem. Existing works often assume that features are readily available for each incoming data point. However, in many real world applications, both feature values and the labels are unknown a priori and can only be obtained at a cost. For example, in medical diagnosis, doctors have to choose which tests to perform (i.e., making costly feature queries) on a patient in order to make a diagnosis decision (i.e., predicting labels). We provide a fresh perspective to tackle this practical challenge. Our framework consists of an active planning oracle embedded in an online learning scheme for which we investigate several information acquisition functions. Specifically, we employ a surrogate information acquisition function based on adaptive submodularity to actively query feature values with a minimal cost, while using a posterior sampling scheme to maintain a low regret for online prediction. We demonstrate the efficiency and effectiveness of our framework via extensive experiments on various real-world datasets. Our framework also naturally adapts to the challenging setting of online learning with concept drift and is shown to be competitive with baseline models while being more flexible.
Supplementary material from Patterns of divergence in the morphology of ceratopsian dinosaurs: sympatry is not a driver of ornament evolution
Creators: name: Knapp, Andrew
name: Knell, Robert J.
name: Farke, Andrew A.
name: Loewen, Mark A.
name: Hone, David W. E.
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Phylogeny, occurences, p-values and cladistic character list
Electronic Supplementary Figures and Tables from Urban blackbirds have shorter telomeres.
Creators: name: Ibáñez-Álamo, Juan Diego
name: Pineda-Pampliega, Javier
name: Thomson, Robert L.
name: Aguirre, José I.
name: Díez-Fernández, Alazne
name: Faivre, Bruno
name: Figuerola, Jordi
name: Verhulst, Simon
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Molecular Biology
subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: Additional figures and tables regarding the paper
La Roche, Benedict
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Basel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
On the existence of isoperimetric regions in manifolds with nonnegative Ricci curvature and Euclidean volume growth
Creators: name: Antonelli, Gioacchino
name: Bruè, Elia
name: Fogagnolo, Mattia
name: Pozzetta, Marco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Functional Analysis (math.FA)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: In this paper we provide new existence results for isoperimetric sets of large volume in Riemannian manifolds with nonnegative Ricci curvature and Euclidean volume growth. We find sufficient conditions for their existence in terms of the geometry at infinity of the manifold. As a byproduct we show that isoperimetric sets of big volume always exist on manifolds with nonnegative sectional curvature and Euclidean volume growth. Our method combines an asymptotic mass decomposition result for minimizing sequences, a sharp isoperimetric inequality on nonsmooth spaces, and the concavity property of the isoperimetric profile. The latter is new in the generality of noncollapsed manifolds with Ricci curvature bounded below.
description: 37 pages
Improved limits on lepton-flavor-violating decays of light pseudoscalars via spin-dependent $μ\to e$ conversion in nuclei
Creators: name: Hoferichter, Martin
name: Menéndez, Javier
name: Noël, Frederic
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Lepton-flavor-violating decays of light pseudoscalars, $P=π^0,η,η'\toμe$, are stringently suppressed in the Standard Model up to tiny contributions from neutrino oscillations, so that their observation would be a clear indication for physics beyond the Standard Model. However, in effective field theory such decays proceed via axial-vector, pseudoscalar, or gluonic operators, which are, at the same time, probed in spin-dependent $μ\to e$ conversion in nuclei. We derive master formulae that connect both processes in a model-independent way in terms of Wilson coefficients, and study the implications of current $μ\to e$ limits in titanium for the $P\toμe$ decays. We find that these indirect limits surpass direct ones by many orders of magnitude.
description: 9 pages, 2 figures; journal version
(2370) William Hall
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Laurer & Co
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Chur
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Alternative version of chiral color as alternative to the standard model
Creators: name: Frampton, Paul H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: In a variant of chiral color with the electroweak gauge group generalized to SU(3){sub L}xU(1) anomaly cancellation occurs more readily than in the SU(2){sub L}xU(1) case. Three families are required by anomaly cancellation and the top family appears nonsequentially.
Database from Urban blackbirds have shorter telomeres.
Creators: name: Ibáñez-Álamo, Juan Diego
name: Pineda-Pampliega, Javier
name: Thomson, Robert L.
name: Aguirre, José I.
name: Díez-Fernández, Alazne
name: Faivre, Bruno
name: Figuerola, Jordi
name: Verhulst, Simon
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Molecular Biology
subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: Database used for the analyses
Gravitational perturbations and metric reconstruction: Method of extended homogeneous solutions applied to eccentric orbits on a Schwarzschild black hole
Creators: name: Evans, Charles R.
name: Hopper, Seth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: We calculate the gravitational perturbations produced by a small mass in eccentric orbit about a much more massive Schwarzschild black hole and use the numerically computed perturbations to solve for the metric. The calculations are initially made in the frequency domain and provide Fourier-harmonic modes for the gauge-invariant master functions that satisfy inhomogeneous versions of the Regge-Wheeler and Zerilli equations. These gravitational master equations have specific singular sources containing both delta function and derivative-of-delta function terms. We demonstrate in this paper successful application of the method of extended homogeneous solutions, developed recently by Barack, Ori, and Sago, to handle source terms of this type. The method allows transformation back to the time domain, with exponential convergence of the partial mode sums that represent the field. This rapid convergence holds even in the region of $r$ traversed by the point mass and includes the time-dependent location of the point mass itself. We present numerical results of mode calculations for certain orbital parameters, including highly accurate energy and angular momentum fluxes at infinity and at the black hole event horizon. We then address the issue of reconstructing the metric perturbation amplitudes from the master functions, the latter being weak solutions of a particular form to the wave equations. The spherical harmonic amplitudes that represent the metric in Regge-Wheeler gauge can themselves be viewed as weak solutions. They are in general a combination of (1) two differentiable solutions that adjoin at the instantaneous location of the point mass (a result that has order of continuity $C^{-1}$ typically) and (2) (in some cases) a delta function distribution term with a computable time-dependent amplitude. Comment: 25 pages, 5 figures, Updated with minor changes
A divisive hierarchical clustering-based method for indexing image information
Creators: name: Izadpanah, Najva
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: In most practical applications of image retrieval, high-dimensional feature vectors are required, but current multi-dimensional indexing structures lose their efficiency with growth of dimensions. Our goal is to propose a divisive hierarchical clustering-based multi-dimensional indexing structure which is efficient in high-dimensional feature spaces. A projection pursuit method has been used for finding a component of the data, which data's projections onto it maximizes the approximation of negentropy for preparing essential information in order to partitioning of the data space. Various tests and experimental results on high-dimensional datasets indicate the performance of proposed method in comparison with others.
Hunting for new physics with unitarity boomerangs
Creators: name: Frampton, Paul H.
name: He, Xiao Gang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Although the unitarity triangles ($UTs$) carry information about the Kobayashi-Maskawa (KM) quark mixing matrix, it explicitly contains just three parameters which is one short to completely fix the KM matrix. It has been shown recently, by us, that the unitarity boomerangs ($UB$) formed using two $UTs$, with a common inner angle, can completely determine the KM matrix and, therefore, better represents, quark mixing. Here, we study detailed properties of the $UBs$, of which there are a total 18 possible. Among them, there is only one which does not involve very small angles and is the ideal one for practical uses. Although the $UBs$ have different areas, there is an invariant quantity, for all $UBs$, which is equal to a quarter of the Jarlskog parameter $J$ squared. Hunting new physics, with a unitarity boomerang, can reveal more information, than just using a unitarity triangle.
R script from Urban blackbirds have shorter telomeres.
Creators: name: Ibáñez-Álamo, Juan Diego
name: Pineda-Pampliega, Javier
name: Thomson, Robert L.
name: Aguirre, José I.
name: Díez-Fernández, Alazne
name: Faivre, Bruno
name: Figuerola, Jordi
name: Verhulst, Simon
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Molecular Biology
subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: R script used for the analyses
Levainville & Fascie
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Paris
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Accessing continuous-variable entanglement witnesses with multimode spin observables
Creators: name: Griffet, Célia
name: Haas, Tobias
name: Cerf, Nicolas J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present several measurement schemes for accessing separability criteria for continuous-variable bipartite quantum systems. Starting from moments of the bosonic mode operators, criteria suitable to witness entanglement are expressed in terms of multimode spin observables via the Jordan Schwinger map. These observables are typically defined over a few replicas of the state of interest and can be transformed into simple photon-number measurements by passive optical circuits. Our measurement schemes require only a handful of measurements, thereby allowing one to efficiently detect entanglement without the need for costly state tomography as illustrated for a variety of physically relevant states (Gaussian, mixed Schrödinger cat, and NOON states). The influence of typical experimental imperfections is shown to be moderate.
description: Minor corrections in v2 to match the published version of the paper, 17 pages, 7 figures
A comparison of nonlinear extensions to the ensemble Kalman filter: Gaussian Anamorphosis and Two-Step Ensemble Filters
Creators: name: Grooms, Ian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 60G35, 62M20

description: Ensemble Kalman filters are based on a Gaussian assumption, which can limit their performance in some non-Gaussian settings. This paper reviews two nonlinear, non-Gaussian extensions of the Ensemble Kalman Filter: Gaussian anamorphosis (GA) methods and two-step updates, of which the rank histogram filter (RHF) is a prototypical example. GA-EnKF methods apply univariate transforms to the state and observation variables to make their distribution more Gaussian before applying an EnKF. The two-step methods use a scalar Bayesian update for the first step, followed by linear regression for the second step. The connection of the two-step framework to the full Bayesian problem is made, which opens the door to more advanced two-step methods in the full Bayesian setting. A new method for the first part of the two-step framework is proposed, with a similar form to the RHF but a different motivation, called the `improved RHF' (iRHF). A suite of experiments with the Lorenz-`96 model demonstrate situations where the GA-EnKF methods are similar to EnKF, and where they outperform EnKF. The experiments also strongly support the accuracy of the RHF and iRHF filters for nonlinear and non-Gaussian observations; these methods uniformly beat the EnKF and GA-EnKF methods in the experiments reported here. The new iRHF method is only more accurate than RHF at small ensemble sizes in the experiments reported here.
description: 25 pages, 4 figures
LHC Higgs production and decay in the T ′ model
Creators: name: Kephart, Thomas W.
name: Frampton, Paul H.
name: Matsuzaki, Shinya
name: Ho, Chiu Man
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: At $\sqrt{s} = 7$ TeV, the standard model needs at least $10\, (fb)^{-1}$ integrated luminosity at LHC to make a definitive discovery of the Higgs boson. Using binary tetrahedral ($T^{'}$) discrete flavor symmetry, we discuss how the decay of the lightest $T'$ Higgs into $\gamma\,\gamma$ can be effectively enhanced and dominate over its decay into $b \, \bar{b}$. Since the two-photon final state allows for a clean reconstruction, a decisive Higgs discovery may be possible at 7 TeV with the integrated luminosity only of $\sim 1\, (fb)^{-1}$.
Guided Co-Modulated GAN for 360° Field of View Extrapolation
Creators: name: Dastjerdi, Mohammad Reza Karimi
name: Hold-Geoffroy, Yannick
name: Eisenmann, Jonathan
name: Khodadadeh, Siavash
name: Lalonde, Jean-François
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose a method to extrapolate a 360° field of view from a single image that allows for user-controlled synthesis of the out-painted content. To do so, we propose improvements to an existing GAN-based in-painting architecture for out-painting panoramic image representation. Our method obtains state-of-the-art results and outperforms previous methods on standard image quality metrics. To allow controlled synthesis of out-painting, we introduce a novel guided co-modulation framework, which drives the image generation process with a common pretrained discriminative model. Doing so maintains the high visual quality of generated panoramas while enabling user-controlled semantic content in the extrapolated field of view. We demonstrate the state-of-the-art results of our method on field of view extrapolation both qualitatively and quantitatively, providing thorough analysis of our novel editing capabilities. Finally, we demonstrate that our approach benefits the photorealistic virtual insertion of highly glossy objects in photographs.
description: 8 pages, 9 figures
Limits on spacetime foam
Creators: name: Ng, Y. Jack
name: Christiansen, Wayne A.
name: Perlman, Eric S.
name: Floyd, David J.E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Plausibly spacetime is "foamy" on small distance scales, due to quantum fluctuations. We elaborate on the proposal to detect spacetime foam by looking for seeing disks in the images of distant quasars and AGNs. This is a null test in the sense that the continued presence of unresolved "point" sources at the milli-arc second level in samples of distant compact sources puts severe constraints on theories of quantized spacetime foam at the Planckian level. We discuss the geometry of foamy spacetime, and the appropriate distance measure for calculating the expected angular broadening. We then deal with recent data and the constraints they put on spacetime foam models. While time lags from distant pulsed sources such as GRBs have been posited as a possible test of spacetime foam models, we demonstrate that the time-lag effect is rather smaller than has been calculated, due to the equal probability of positive and negative fluctuations in the speed of light inherent in such models. Thus far, images of high-redshift quasars from the Hubble Ultra-Deep Field (UDF) provide the most stringent test of spacetime foam theories. While random walk models ($\alpha = 1/2$) have already been ruled out, the holographic ($\alpha=2/3$) model remains viable. Here $\alpha \sim 1$ parametrizes the different spacetime foam models according to which the fluctuation of a distance $l$ is given by $\sim l^{1 - \alpha} l_P^{\alpha}$ with $l_P$ being the Planck length. Indeed, we see a slight wavelength-dependent blurring in the UDF images selected for this study. Using existing data in the {\it Hubble Space Telescope (HST)} archive we find it is impossible to rule out the $\alpha=2/3$ model, but exclude all models with $\alpha<0.65$. By comparison, current GRB time lag observations only exclude models with $\alpha<0.3$.
Programm "Digital Summer School Forschungsdatenmanagement", FDM UB Hildesheim, 2020 (deutschspr. & engl.-sprachige Versionen).
Creators: name: Strauch, Annette
Publisher: name: Zenodo
Year: 2020
Subjects: Digital Summer School Research Data Management
Digital Summer School Forschungsdatenmanagement
Forschungsdaten
Forschungsdatenmanagement
Research Data
Research Data Management

description: How do we improve the usability of research data to move science forward? ‘Good Practices’ and ‘Lessons Learned’ from KIT. The National Research Data Infrastructure (NFDI) will continue to be established so that research data can become scientifically widely usable in the sense of data treasures with social added value, also with the goal of connectivity, e.g. to the European Research Cloud (European Open Science Cloud, EOSC). The summer event is aimed at researchers from all departments and institutes of the University of Hildesheim, as well as interested parties from the global RDM community (libraries, data centers, data protection officers, etc.), as well as for all those who are interested in our topics (Citizen Science) .
Non-monotonous translocation time of polymers across pores
Creators: name: Locatelli, Emanuele
name: Bianco, Valentino
name: Valeriani, Chantal
name: Malgaretti, Paolo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Polymers confined in corrugated channels, i.e. channels of varying amplitude, display {multiple local maxima and minima of the diffusion coefficient upon increasing their degree of polymerization $N$}. We propose a theoretical effective free energy for linear polymers based on a Fick-Jacobs approach. We validate the predictions against numerical data, obtaining quantitative agreement for {the effective free energy, the diffusion coefficient and the Mean First Passage Time}. Finally, we employ the effective free energy to compute the polymer lengths $N_{min}$ at which the diffusion coefficient presents a minimum: we find a scaling expression that we rationalize with a blob model. Our results could be useful to design porous adsorbers, that separate polymers of different sizes without the action of an external flow.
description: 6 pages,7 figures + Supplemental 4 pages, 6 figures
Gandillot, Frères, & Roy
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Besançon
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
(2371) William Hall
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Additional file 1 of p53-driven lipidome influences non-cell-autonomous lysophospholipids in pancreatic cancer
Creators: name: Butera, Alessio
name: Roy, Micaela
name: Zampieri, Carlotta
name: Mammarella, Eleonora
name: Panatta, Emanuele
name: Melino, Gerry
name: D’Alessandro, Angelo
name: Amelio, Ivano
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure S1. Heatmap showing the lipid species significantly affected by p53 loss. For lysophospholipids, only the ten most significantly deregulated species are shown. Cer: Ceramides, DG: Diacylglycerol, LPC, Lysophosphatidylcholine; LPS, Lysophosphatidylserine; PC, Phosphatidylcholine; SPH, Sphinganine; LPE, Lysophosphatidylethanolammine; LPG, Lysophosphatidylglycerol; LPI, Lysophosphatidylinositol; PE, Phosphatidylethanolammine; PG, Phosphatidylglycerol; PI, Phosphatidylinositol; SM, Sphingomyelin; PS, Phosphatidylserine. *p
Dark matter, infinite statistics, and quantum gravity
Creators: name: Ho, Chiu Man
name: Minic, Djordje
name: Ng, Y. Jack
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: We elaborate on our proposal regarding a connection between global physics and local galactic dynamics via quantum gravity. This proposal calls for the concept of MONDian dark matter which behaves like cold dark matter at cluster and cosmological scales but emulates modified Newtonian dynamics (MOND) at the galactic scale. In the present paper, we first point out a surprising connection between the MONDian dark matter and an effective gravitational Born-Infeld theory. We then argue that these unconventional quanta of MONDian dark matter must obey infinite statistics, and the theory must be fundamentally non-local. Finally, we provide a possible top-down approach to our proposal from the Matrix theory point of view.
Pseudo-rip: Cosmological models intermediate between the cosmological constant and the little rip
Creators: name: Scherrer, Robert J.
name: Frampton, Paul H.
name: Ludwick, Kevin J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: If we assume that the cosmic energy density will remain constant or strictly increase in the future, then the possible fates for the universe can be divided into four categories based on the time asymptotics of the Hubble parameter H(t): the cosmological constant, for which H(t) = constant, the big rip, for which H(t) goes to infinity at finite time, the little rip, for which H(t) goes to infinity as time goes to infinity, and the pseudo-rip, for which H(t) goes to a constant as time goes to infinity. Here we examine the last of these possibilities in more detail. We provide models that exemplify the pseudo-rip, which is an intermediate case between the cosmological constant and the little rip. Structure disintegration in the pseudo-rip depends on the model parameters. We show that pseudo-rip models for which the density and Hubble parameter increase monotonically can produce an inertial force which does not increase monotonically, but instead peaks at a particular future time and then decreases.
A Feasible Semi-quantum Private Comparison Based on Entanglement Swapping of Bell States
Creators: name: Ye, Chong-Qiang
name: Li, Jian
name: Chen, Xiu-Bo
name: Hou, Yanyan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Semi-quantum private comparison (SQPC) enables two classical users with limited quantum capabilities to compare confidential information using a semi-honest third party (TP) with full quantum power. However, entanglement swapping, as an important property of quantum mechanics in previously proposed SQPC protocols is usually neglected. In this paper, we propose a feasible SQPC protocol based on the entanglement swapping of Bell states, where two classical users do not require additional implementation of the semi-quantum key distribution protocol to ensure the security of their private data. Security analysis shows that our protocol is resilient to both external and internal attacks. To verify the feasibility and correctness of the proposed SQPC protocol, we design and simulate the corresponding quantum circuits using IBM Qiskit. Finally, we compare and discuss the proposed protocol with previous similar work. The results reveal that our protocol maintains high qubit efficiency, even when entanglement swapping is employed. Consequently, our proposed approach showcases the potential applications of entanglement swapping in the field of semi-quantum cryptography.
description: 17 pages, 6 figures. arXiv admin note: text overlap with arXiv:2210.03421
(2372) Edward Kirk
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
CGC: Contrastive Graph Clustering for Community Detection and Tracking
Creators: name: Park, Namyong
name: Rossi, Ryan
name: Koh, Eunyee
name: Burhanuddin, Iftikhar Ahamath
name: Kim, Sungchul
name: Du, Fan
name: Ahmed, Nesreen
name: Faloutsos, Christos
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Given entities and their interactions in the web data, which may have occurred at different time, how can we find communities of entities and track their evolution? In this paper, we approach this important task from graph clustering perspective. Recently, state-of-the-art clustering performance in various domains has been achieved by deep clustering methods. Especially, deep graph clustering (DGC) methods have successfully extended deep clustering to graph-structured data by learning node representations and cluster assignments in a joint optimization framework. Despite some differences in modeling choices (e.g., encoder architectures), existing DGC methods are mainly based on autoencoders and use the same clustering objective with relatively minor adaptations. Also, while many real-world graphs are dynamic, previous DGC methods considered only static graphs. In this work, we develop CGC, a novel end-to-end framework for graph clustering, which fundamentally differs from existing methods. CGC learns node embeddings and cluster assignments in a contrastive graph learning framework, where positive and negative samples are carefully selected in a multi-level scheme such that they reflect hierarchical community structures and network homophily. Also, we extend CGC for time-evolving data, where temporal graph clustering is performed in an incremental learning fashion, with the ability to detect change points. Extensive evaluation on real-world graphs demonstrates that the proposed CGC consistently outperforms existing methods.
description: TheWebConf 2022 Research Track
Ligneau & Grandcour
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: New York
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Lorenz gauge gravitational self-force calculations of eccentric binaries using a frequency domain procedure
Creators: name: Hopper, Seth
name: Osburn, Thomas
name: Forseth, Erik
name: Evans, Charles R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: We present an algorithm for calculating the metric perturbations and gravitational self-force for extreme-mass-ratio inspirals (EMRIs) with eccentric orbits. The massive black hole is taken to be Schwarzschild and metric perturbations are computed in Lorenz gauge. The perturbation equations are solved as coupled systems of ordinary differential equations in the frequency domain. Accurate local behavior of the metric is attained through use of the method of extended homogeneous solutions and mode-sum regularization is used to find the self-force. We focus on calculating the self-force with sufficient accuracy to ensure its error contributions to the phase in a long term orbital evolution will be $\delta\Phi \lesssim 10^{-2}$ radians. This requires the orbit-averaged force to have fractional errors $\lesssim 10^{-8}$ and the oscillatory part of the self-force to have errors $\lesssim 10^{-3}$ (a level frequently easily exceeded). Our code meets this error requirement in the oscillatory part, extending the reach to EMRIs with eccentricities of $e \lesssim 0.8$, if augmented by use of fluxes for the orbit-averaged force, or to eccentricities of $e \lesssim 0.5$ when used as a stand-alone code. Further, we demonstrate accurate calculations up to orbital separations of $a \simeq 100 M$, beyond that required for EMRI models and useful for comparison with post-Newtonian theory. Our principal developments include (1) use of fully constrained field equations, (2) discovery of analytic solutions for even-parity static modes, (3) finding a pre-conditioning technique for outer homogeneous solutions, (4) adaptive use of quad-precision and (5) jump conditions to handle near-static modes, and (6) a hybrid scheme for high eccentricities.
Database from Urban blackbirds have shorter telomeres
Creators: name: Ibáñez-Álamo, Juan Diego
name: Pineda-Pampliega, Javier
name: Thomson, Robert L.
name: Aguirre, José I.
name: Díez-Fernández, Alazne
name: Faivre, Bruno
name: Figuerola, Jordi
name: Verhulst, Simon
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Molecular Biology
subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: Database used for the analyses
Landsmann, Vetter
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1826

description: Ort: Mulhouse
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Nature of M31 gamma-ray halo in relation to dark matter annihilation
Creators: name: Egorov, Andrei E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The present work analyzes various aspects of M31 gamma-ray halo emission in its relation to annihilating dark matter (DM). The main aspect is the predicted effect of asymmetry of the intensity of emission due to inverse Compton scattering (ICS) of a possible population of relativistic electrons and positrons ($e^\pm$) in the galactic halo on starlight photons. This asymmetry is expected to exist around the major galactic axis, and arises due to anisotropy of the interstellar radiation field and the inclination of M31. ICS emission and its asymmetry were modeled by GALPROP code for the trial case of $e^\pm$ generated by annihilating weakly interacting massive particles (WIMPs) with various properties. The asymmetry was obtained to appear at photon energies above $\sim$ 0.1 MeV. Morphological and spectral properties of the asymmetry were studied in detail. Potential observational detection of the asymmetry may allow to infer the leptonic fraction in the emission generation mechanism, thus providing valuable inferences for understanding the nature of M31 gamma-ray halo emission. Specific asymmetry predictions were made for the recently claimed DM interpretation of the outer halo emission. The paper also studied the role of secondary -- ICS and bremsstrahlung -- emissions due to DM annihilation for that interpretation. And, finally, the latter was shown to be somewhat restricted by the recently derived WIMP constraints from radio data on M31.
description: 15 pages, 5 figures, 4 tables. V2 incorporated the referee suggestions, which concerned mainly Sec. IV and Fig. 5. The main results stayed unchanged. The article is dedicated to a kind memory of Nikolay Topchiev and Arkadii Galper
Electronic Supplementary Figures and Tables from Urban blackbirds have shorter telomeres
Creators: name: Ibáñez-Álamo, Juan Diego
name: Pineda-Pampliega, Javier
name: Thomson, Robert L.
name: Aguirre, José I.
name: Díez-Fernández, Alazne
name: Faivre, Bruno
name: Figuerola, Jordi
name: Verhulst, Simon
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Molecular Biology
subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: Additional figures and tables regarding the paper
Renevier
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1828

description: Ort: Morges
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
title: Multivariate outlier detection in latent variable models
Creators: name: Lu, Yan
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2022

description: Outliers often pose serious problems for statistical models since they can distort the model fit and bias parameter estimation. Outliers are also worthy of attention in their own rights, as they are often informative of substructures of the data. This thesis aims to develop methods of detecting multivariate outliers in latent variable modelling contexts. Outliers are defined as data subsets deviating from a baseline model specified for the majority of the data. By this definition, we specify oneway outliers on the basis of atypical attributes of either individuals or variables and two-way outliers on the basis of atypical attributes of both individuals and variables. In this thesis, we develop the Forward Search (FS) procedures for detecting outlying individuals, latent groups of individuals and DIF variables. The FS does not examine just one subset of the data but instead fits a sequence of augmented subsets in order to decide which part of the data deviates from the baseline model. Outliers are identified through monitoring the effect of the sequential addition of individuals or items on the fitted model. The performance of the FS is assessed through simulated data and cross-national survey data under latent class models, factor mixture models and multiple-group latent variable models. To detect two-way outliers, the thesis proposes to impose a latent class model component for capturing two-way outliers upon a latent factor model component for capturing normal item response behaviour. Statistical inference is carried out under a fully Bayesian framework. The detection of two-way outliers is formulated based on the proposed Bayesian decision rules and compound decision rules that control local false discovery rate and local false non-discovery rate. The proposed method proves to be particularly useful in simultaneously detecting compromised items and test takers with item pre-knowledge in educational tests. To further improve two-way outlier detection, the two-way outlier detection model is extended in an explanatory framework by accounting for covariate effects and the relationships between latent variables.
(2368) John Oldfield
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
cBiT: The Compendium for Biomaterial Transcriptomics
Creators: name: Hebels, Dennie
Publisher: name: Zenodo
Year: 2020

description: One of the presentations from the First Online Session leading up to the Dutch National Open Science Festival in 2021: 'The Open Science Use Case Awards' on July 2nd 2020. The publication ‘A Collection of Open Science Use Cases can be found here: https://zenodo.org/record/3903257
R script from Urban blackbirds have shorter telomeres
Creators: name: Ibáñez-Álamo, Juan Diego
name: Pineda-Pampliega, Javier
name: Thomson, Robert L.
name: Aguirre, José I.
name: Díez-Fernández, Alazne
name: Faivre, Bruno
name: Figuerola, Jordi
name: Verhulst, Simon
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Molecular Biology
subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences

description: R script used for the analyses
Entropy of microcanonical finite-graph ensembles
Creators: name: Kawamoto, Tatsuro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The entropy of random graph ensembles has gained widespread attention in the field of graph theory and network science. We consider microcanonical ensembles of simple graphs with prescribed degree sequences. We demonstrate that the mean-field approximations of the generating function using the Chebyshev-Hermite polynomials provide estimates for the entropy of finite-graph ensembles. Our estimate reproduces the Bender-Canfield formula in the limit of large graphs.
description: 7 pages, 3 figures
(2369) Clara Huggon
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.